Report /u��aat3 - OO(3y�
l v l� / 5w cti s 4_
r
MARK: EF-1
t
4é-
CPROJECT: HANNAH
cats tifilt, DATE: 10/22/2013
GEMINICERrit,)
Inline Blowers
200-700 Series O C T 2 2 2013
STANDARD CONSTRUCTION FEATURES:
Forward curved galvanized steel fan wheels - 70 W CITY M r\ j
Corrosion resistantgalvanized steel fan housingL
- �A—'I �iCf�—'1�D r j 'jl
Acoustically insulated housing-Aluminum backdraft aAirFloa Q) TT
damper with solid aluminum hinge rod mounted in � Air Flowit;
• ' D O K H
brass bushings -Permanently lubricated motor with ( 1 I - o o
built-in thermal overload protection and disconnect _
1i
plug -Interchangeable panels with removable -
, fasteners allows the discharge to be easily changed - ,
Internal wiring box with disconnect receptacle.
Performance Dimensions (inches)
Catalog Flow SP Nominal Input L-HSG 17
Qty Number (CFM) (inwc) RPM Watts
W-HSG 11-7/8
1 GN-620 300 .350 815 171 H-HSG 11-7/8
Altitude(ft): 39 Temperature(F): 70 A-Outlet 10-1/2
1 Motor Information
Volts/Ph/Hz Nameplate Amps B-Outlet 4-3/4
J-Inlet 16-15/16
115/1/60 4.9
K-Inlet 11-15/16
Sound Data Inlet Sound Power by Octave Band C 1
1 2 3 4 5 6 7 8 LwA dBA Sones HVISones D 5/8
53 49 44 37 25 23 25 28 40 26 .8 .3 NOTE:Accessories may affect dimensions shown.
Accessories: Shipping Weight(lbs)*** 36
FAN SPEED CONTROLLER 5 AMP 120 VOLT —Incudes fan,motor&accessories
.
Fan Curve
1.25 500
1.00 400
u 0.75 300 'o
3 c
c ,*
41
N 0.50 200 N
Fan Curve Legend '0.25 100
.:.>.
CFM vs SP(815)
100%FSC(950)
Min FSC(475) 0.00 - - 0.00
CFM vs Watts 0 100 200 300 400 500
Point of Operation 0 Flow(CFM)
System Curve -------
v6.3.55.12328 C:\Users\KeithH\Documents\Cook Jobs\ Page 1 of 2
• 1 somr`
♦41PROJECT: HANNAH
Assirile CO OI DATE: 10/22/2013
FSC
Fan Speed Controls
STANDARD CONSTRUCTION FEATURES:
PRODUCT DESCRIPTION -Through the"Quadrac" integrated semi-conductor device it is now possible
to offer this system with many advantages. Fewer semi-conductor parts mean greater reliability
and the passivation process used in the manufacture of the semi-conductor insures long life.
Printed circuit construction eliminates wiring difficulties and guarantees workmanship.
All of these factors serve to offer the most important of all features - quality.
SPEED CONTROL-Positive Off/On action in the control dial. Speed range set to the customer's
requirements. CONTROL RATING -120 volts, 60 cycles, 1 phase. Maximum ambient temperature-
120 degree F(5 AMP, 10 AMP, 15 AMP). 220/240 volt, 50/60 cycles, 1 phase. Maximum ambient
temperature-120 degree F(5 AMP, 10 AMP). 220/240 volt model not UL listed. Fan cannot have •
UL listing if furnished with prewired 220/240 volt FSC. 277 volt, 60 cycles, 1 phase.
Maximum ambient temperature-120 degree F (5 AMP). WARNING -Power must be turned off
before installing this unit.STANDARD INSTALLATION -Fits any standard single gang box.
Turn off power and connect the two wires on the control to the two switch wires in the
usual manner.The connection box is not supplied. SPECIAL FEATURES-Complete range control,
solid state"Quadrac"integrated circuitry,solid state construction for long reliable
operating life,saves on electric bills.
Dimensions (inches) FS-5
Mark Qty Description I-7
EF-1 1 FSC 5 AMP 120 VOLT 0 4-1/8" .i� 2-1/4"
f1
1-1/2" - 1 -1-7/16"
1 1 0 f71
tO 0 I I I
FS-10
0 4-1/2" _ 2-1/2"
�— 4-3/8"--1 3/4"--1
=i o-1-3/8"
0 MiIIIi I I I
WIRING DIAGRAM
L1 FSG
MOTOR
0
v6.3.55.12328 C:\Users\KeithH\Documents\Cook Jobs\ Page 2 of 2
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— 1 --2— C E OCT 2 2 2013
= INDOOR AIR SYSTEMS C,"i I Y ,aFH(jARD
'' ii ,D NGTcSi o
Operation and Installation Manual
r_ - Models
700FD/DD
700FD/DD PLUS
o 850FD/DD
E1200FD/DD
1200FD/DD PLUS
700ERV
1200ERV
Commercial Heat Recovery (HRV) and Energy Recovery Ventilators (ERV)
Now manufactured with
Aircom Electronics
900 Fa's , � ... 69-Com H RV
RECIST a..<.�so 3 �u,-;,,fr- c�.v�xr
0912
A
4
(Table of Contents
I
Select Correct HRV/ERV to Match Your Climate 3 Optional Ventilation Control
ERV Questions and Answers 4 Optional 3 Speed Control
19
Specifications-Model 700FD/DD 5 Optional Dehumidistat
Specifications-Model 700FD/DD PLUS 6 Optional Timers
20
Specifications-Model 850FD/DD 7 Function And Controls
21
Specifications-Model 1200FD/DD 8 Connecting Optional Digital Controls 22
Specifications-Model 1200FD/DD PLUS 9 Balancing the HRV
23
Specifications-Model 700ERV 10 Service/Maintenance
4-25
Specifications-Model 1200ERV 11 Aircom Relays(Models 700, 850, 1200) 26
Location of the HRV/ERV for Mounting 12 Troubleshooting your HRV/ERV System 27
The Ductwork System Wiring Diagrams
28-30
Outside Weatherhoods 13 Warranty 31
Stale Air Return System
Fresh Air Supply System
Adjustable Grilles 14 0 ATTENTION
The Integrated HVAC System 15 Do not apply electrical power to the unit until
Drain Connections installation has been fully completed(including
Electrical Connections and Self-Test 16 low voltage control wiring).
HRV Defrost Strategies
Defrost Time Adjustment 17 CAUTION
Reversing the Supply and Defrost Air Ports 18
Never install an HRV/ERV in a situation
where its normal operation, lack of operation
CAUTION or partial failure may result in the
backdrafting or improper functioning of
Assess how the operation of an HRV/ERV vented combustion equipment!
may interact with already installed vented
combustion equipment (ie. Gas Furnaces,
Oil Furnaces,Wood Stoves,etc.).
Leave this manual with your customer!
TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION
Installing Contractor
Telephone/Contact
Serial Number
Installation Date Model
2
Select the Correct HRV/ERV to Match Your Climate •
Heat Recovery Ventilators (HRV) and Energy Recovery
Stale Air
Ventilators (ERV) are designed to supply fresh air to a Fresh
from Building r
building while exhausting an equal amount of stale air from \\�
r Outdoor Air
•
the building. An energy savings is experienced dunne the \,
e
process by reducing the heating(or cooling)requirements.
HRV-Aluminum Core
During the winter months, the incoming cold fresh air is ,
Air
warmed by utilizing the heat recovered from the stale air r -°`" rotale outside
before it is exhausted to the outdoors. During summer Fresh Air
months when the indoorsp ace is air conditioned the eat to Building
Recovery Ventilator will help in cooling the incoming fresh
air with the stale air that is being exhausted.
ERV-Enthalpic Paper Core
An ERV is designed for use in warm humid areas with
heavy air conditioning use. The ERV will transfer both
sensible and latent heat from the incoming fresh air to the
outgoing stale air thereby reducing the load (due to
ventilation)on the air conditioning system.
ERVs are not suitable for climates where the temperature
drops below-4°C(25°F)for more than 5 days.
Severe Conditions
b .,. HRV required
�. 7,3
4. Pacific Conditions
HRV recommended
t� �� } Severe Condinons ERV optional'
Extreme Area**-High Humidity
F, rS {,� '+, ERV recommended'
tet"
TT '' Moderate Conditions
/ Moderate Conditions HRV recommended
Pacific
Conditions '
P��EsmimeArea Arid Zone-Dry Climate
Arid Zorn High Humrdip
''-a5 HRV recommended
Dry Cl mare �.
ATTENTION!
• ERVs are not recommended where temperatures
fall below 25°F (-4°C) for more than five
consecutive days.
• ERVs are recommended in regions where high
outdoor humidity requires the operation of air
conditioning/dehumidification systems more
frequently than heating systems.
3
1
IERV Questions and Answers I
What is the difference between an HRV and an What's the difference between this type of core
ERV? and a rotary type?
• The core in an HRV (Heat Recovery Ventilator) transfers Here's a list of characteristics of the fixed plate core.
heat from one air stream to the other.This is called sensible 1. No rotating parts, so maintenance is easy and the unit
heat.The term ERV(Energy Recovery Ventilator)is usually lasts a long time.
used to describe a unit with an enthalpic core that transfers
2. It is very flexible in terms of installation.
moisture as well as heat from one air stream to the other.
This(moisture transfer)is called latent heat. 3. The core can easily be changed.
Enthalpic-what does it mean? 4. Because the supply and exhaust air streams are
Enthalpy is the term used to describe the energy content of completely separate, there is very little cross leakage of
air. This energy is a combination of the sensible and latent any dust or germs.
heat. Therefore, a core which transfers energy is called an Can the core become clogged with dust?
enthalpic core. Because the surface of the core is a turbulent flow area,dust
Is an ERV better than an HRV? sticks to it easily; however, because the inside of the
NOT NECESSARILY! In cold climates such as most of element is a laminar flow area,virtually no dust sticks to it.
North America, an HRV works better than an ERV. This is What is the maintenance?
because the air inside the home during the winter months About once a year you should use a vacuum cleaner to
will be more humid than the outside air. An ERV would remove the dust from the core's surface. DO NOT WASH
transfer the latent heat(humidity)from the exhaust air back WITH WATER!!
into the incoming airstream. This will aggravate moisture Is an air filter needed?
problems in the home and encourage the growth of mold
and mildew.If the air in the home is too dry for comfort,an To prevent clogging of the core, an air filter should always
ERV will not help. A humidifierbe installed on the supply and exhaust sides of the core.
should be used to increase How much ventilation do I need?
the humidity to a comfortable level.
Where do you use an ERV instead of an HRV? During seasons when your windows and doors are closed,
An ERV is recommended for warm,humid areas with heavy the ERV should operate continuously when the dwelling is
air conditioning use. As there is no defrost in an ERV it is occupied,and either continuously or intermittently when not
not recommended for areas where the temperature drops occupied.
below-4°C(25°F) For most installations the ERV will normally be set to
1 Why transfer moisture in the summer operate continuously on low speed with the option of going
(cooling season)? to high speed as the need arises. For example; if you are
The enthalpic core will allow moisture to be transferred entertaining and there is a large number of people present
from a humid air flow to a dry air flow. This property is (some may be smoking),the unit should be switched to high
an air conditioning in the cooling season if system is speed.
used to lower the indoor humidity. You will then have dry, Your ERV may be equipped with automatic or manual
cool air in the exhaust of the ERV, and warm humid air in switches, but all ERVs will have a manual speed control
the supply stream. With these conditions, the ERV will be override.
able to transfer the moisture and heat of the supply air to the
. exhaust air.In this way,the ERV will supply to the home air
which is cooler and drier than outside. Remember that an
ERV is not a dehumidifier, and on its own will not take
moisture out of the air.
So why use an ERV?
A properly operating air conditioner will not only lower the
temperature in your house,but will also lower the humidity
level. This prevents an uncomfortable cold and damp
situation. In fact, about 2/3 of the energy used by the air
conditioner system is to remove moisture. Therefore, when
ventilating in the summer, less moisture brought into the
home means less work for the air conditioner, and energy
savings for you.
During the winter, an ERV recovers some humidity from
the exhaust air, reducing the need for humidification, if the
required ventilation rate would make the home too dry.
4
I,
•
Specifications
1200FD/DD
LIFELirti"-' IN e== _
=THE ULTIMATE AIR EXCHANGER
CORES
Modular(3 section)patented aluminum heat recovery cores arranged PERFORMANCE
for efficient cross-flow ventilation.
MOTORS AIRFLOWS(Each Air Stream)
Two PSC,3 speed double shafted, 120 VAC,4 Amps each(8.1 total on
high speed).HP-1/4,1625 RPM. Watts-total on high speed-972. m R
FILTERS D 1300(613) .8.1 HIGH
CO
Washable air filters in exhaust and supply air streams. 2 1200(566).
BLOWERS o 1100(518). 7.8 MED 5.
Centrifugal type rated at 1200 cfm(566 Us)free air delivery.Each air 3 1000(472) ___ytce SPEED 3
stream has one double shafted motor driving a centrifugal blower. 0 900(423) 7.1 Low o
CONNECTION DUCT SIZES cr 800(378) 41E0412UEO _
Four-20"x 8"(508 mm x 200 mm). a 700(329) cc
MOUNTING 600(282). LM1'ISPTFD a
Unit to be set on support brackets hung by threaded rod type 500(235)
apparatus. (brackets and rod not provided). 25 j.1 ) 50•(.2) 75(.3) 100'(.4) 125(.5) 150(.6) 175(.7) °
CASE EXTERNAL STATIC PRESSURE IN PASCALS(In.W.C.)
' 20 gauge prepainted galvanized steel(G60)for superior corrosion TEMPERATURE EFFECTIVENESS
I resistance.Insulated with foil faced insulation where required to prevent
exterior condensation.Drain connections;two-1/2"(12 mm)O.D.
ELECTRONICS y 70%
Integrated microprocessor circuit board.Built-in interlock contacts. tu
Automatic Self Test.Optional remote speed control. ui
' DEFROST CONTROLS F 60%
MODEL 1200FD-Interrupts supply air while exhaust air defrosts core. w
I bypass routes indoor air to defrost core. a
MODEL 1200DD-Supply Y YP w 50%
WEIGHT 191 lbs.(87 kg) SHIPPING WEIGHT 215 lbs.(98 kg)
_ OPTIONAL CONTROLS NOTE:Exhaust Relative Humidity(RH)ataot
99-500 3 Speed Control-3 Speed Fan setting(Low/Medium/High) j 1
500 600 700 800 900 0 1000 1100 1200
(4 wire)20 gauge wire(minimum) (235) (282) (329) (378) (423) (472) (518) (566)
99-BC-01 Ventilation Control-2 Speed Fan setting(Low/High)- AIRFLOW IN CFM(L/s>
- Dehumidistat(3 wire)20 gauge wire(minimum) OPTIONAL ACCESSORIES
OPTIONAL TIMERS 99-DH-01 Remote Wall Dehumidistat-Initiates high speed
99-DET01 20/40/60 Minute Timer-Initiates high speed ventilation for ventilation when the indoor humidity level is above the
20,40,60 minutes.(3 wire)20 gauge wire(minimum) set point.(3 wire)20 gauge wire(minimum)
99-20M01 20 Minute Timer-Initiates high speed ventilation for 20
minutes.(3 wire)20 gauge wire(minimum) WARRANTY
All units carry a 15 year warranty on the heat recovery cores and a
DIMENSIONS inches(mm) 2 year replacement parts warranty.
SUPPLY AIR
FROM OUTSIDE
DO MODEL ONLY
EXHAUST AIR CONTROLS MOONT7N0 POINTS
, TO OUTSIDE _
DEFROST AIR —"--- ---- ••• — .. .
DO MODEL ONLY , 20,
SUPPLY AIR (soft mm) io vfi_ -i!„;/T- 20•
FROM OUTSIDE •• (283 mmi m (508 mm)
FD MODEL ONLY
Eva• 245/8..
1(,n mm( (625 mm) • s'.g
I(+69 mm)
EXHAUST AIR I
FROM BUILDING q.
(i' 1200 mm) •
6
(20o mm) ii
banrinoclaannca OTE: • •
from Is oo in.(no mm) MAIN CONNECTION (759 mm) SUPPLY AIR (1055 mm) (1055�mm)
ont
soma doors FRONT VIEW TO BUILDING DISCHARGE SIDE INLET SIDE
Date: Contractor:
Tag: Qty: Supplier:
Project: Quote#:
- Engineer: Submitted by:
• AIRI
A 511McCormickBlvd. 270 Regency Ridge,Suite 210 '�O
London,
don,Ontarioo N5W 4C8 Dayton,Ohio 45459
T(519)457-1904 T(937)439-6676
BRANDS INC. F(519)457-1676 F(937)439-6685 9001
Email:info@litebreath.com Website:www.lifebreath.com REGISTERED
8
}
Specifications 1200ERV
. .1111110
L1FE& ?EATH
.THE ULTIMATE AIR EXCHANGER
LATENT RECOVERY(MOISTURE)TRANSFER CORES
Modular(3 section)latent recovery(moisture)transfer cores arranged PERFORMANCE
for efficient cross-flow ventilation.
MOTORS AIRFLOWS(Each Air Stream)
Two PSC,3 speed double shafted, 120 VAC,4 Amps each laoo(613)
(8.1 total on high speed).HP-1/4,1625 RPM. Watts-total on high " 1200(sss) gl
speed-972. 6.1 HIGH
co
FILTERS 2 1100(518)
LL 7.6 MED a
1000(472
Washable air filters in exhaust and supply air streams. a
BLOWERS o 900(423) _�_ lG SPEED 3
800(378 __ 7.1 LOW s
Centrifugal type rated at 1200 cfm(566 Us)free air delivery.Each air ¢ 700(329)'h� ■ 0
stream has one double shafted motor driving a centrifugal blower. E0-PE W
CONNECTION DUCT SIZES Q 600(282)111■'� e
Four-20"x 8"(508 mm x 200 mm). soo(23s) ialrcaeeD I u
J
•
H
MOUNTING 25(.1) 50(.2) 75(.3) 100(.4) 125(s) 150(.6) 175(.7) °
Unit to be set on support brackets hung by threaded rod type EXTERNAL STATIC PRESSURE IN PASCALS(in.W.C.)
apparatus.(brackets and rod not provided). TOTAL EFFECTIVENESS
CASE
20 gauge prepainted galvanized steel(G60)for superior corrosion
resistance.Insulated with foil faced insulation where required to
prevent exterior condensation. N 60%
ELECTRONICS z
Integrated microprocessor circuit board.Built-in interlock contacts. >
Automatic Self Test.Optional remote speed control. F 50%u U
DEFROST CONTROLS LL
Fan Defrost—Interrupts the supply air while the exhaust air defrosts w 40%
the core.
NOTE:Exhaust Relative Humidity(RH)at 40%
WEIGHT 191 lbs.(87 kg) SHIPPING WEIGHT 215 lbs.(98 kg) 1 I I
OPTIONAL CONTROLS 500 600 700 800 900 1000 1100 1200
99-500 3 Speed Control-3 Speed Fan setting(Low/Medium/High) 235) (252) 329) 378) 4z0) (472) 518) 566)
AIRFLOW IN CFM(Us)
(4 wire)20 gauge wire(minimum)
99-BC-01 Ventilation Control-2 Speed Fan setting(Low/High)- OPTIONAL ACCESSORIES
Dehumidistat(3 wire)20 gauge wire(minimum) 99-DH-01 Remote Wall Dehumidistat-Initiates high speed
OPTIONAL TIMERS ventilation when the indoor humidity level is above the
99-DET01 20/40/60 Minute Timer-Initiates high speed ventilation for set point.(3 wire)20 gauge wire(minimum)
20,40,60 minutes.(3 wire)20 gauge wire(minimum)
99-20M01 20 Minute Timer-Initiates high speed ventilation for WARRANTY
20 minutes.(3 wire)20 gauge wire(minimum) All units carry a 5 year warranty on the energy recovery cores and
a 2 year replacement parts warranty.
DIMENSIONS inches(mm)
ENTHALPIC CORE EXHAUST AIR
SUPPLY AIR TO OUTSIDE CONTROLS .. –_ .
FROM OUTSIDE
f —
I ``� !1! 20' - I•I20•
L \\/'
(508 mm) �3/� 10 3/8" (506 mm)
/ `` t (263 mm) 1263 mm) •
NOTE: • • -
Service clearance _/____ ___ ` 6 3/4' 24 516• 5 7/a'
::
Is 30 in.(760 mm) ~ -T -
` , (172 mm) (625 mm) (149 mm)
from front r /
access doors. `, / I
i
�. ;i� zoo mm) zoo mm)
EXHAUST AIR i i
FROM BUILDING I 29 7/8• I i_ 41 1/2" _I — 41 1/2,
(759 mm) SUPPLY AIR (1055 mm) (1055 mm) '
FRONT VIEW TO BUILDING DISCHARGE SIDE INLET SIDE
Date: Contractor:
Tag: Qty: Supplier:
Project: Quote#:
Engineer: Submitted by:
• AIRJA
AI 511 McCormick Blvd. 270 Regency Ridge,Suite 210London,Ontario N5W 4C8 Dayton,Ohio 45459 ' O
F(519)457-1676 T(937)439-6676 9001
BRANDS INC. F(519)457-1676 F(937)439-6685
Email:Info@lifebreath.com Website:www.lifebreath.com REGISTERED
11
Location of the HRV/ERV for Mounting
• The HRV/ERV must be located in a heated space where the A minimum clearance of 30 inches (76 cm) in front of the
surrounding air temperature does not fall below 60°F HRV/ERV is recommended to service the heat exchanger
(16°C). The unit must be mounted level (horizontal) to cores and the filters. The HRV/ERV may be mounted on an
obtain proper drainage of water from the heat exchange equipment platform providing the drain hoses are clear and
element and drip pans. The warranty will be void if these there is sufficient space to open the doors for servicing.
conditions are not met.
Typically, the HRV/ERV is positioned close to an outside
wall or the roof to simplify the connections and keep the
length of insulated ducting required for the fresh air intake
to a minimum.
Saddle Installation Curb Mounted
s ..-.111111111111111111111111'
/ Curb is wood or metal
I �` Maybe anchored to
Vibration Isolators (Supplied by others) floorleaving space
Threaded (Supplied by others) for drain connections
rod and U channel Mount unit on wooden or metal
(Supplied by others)
curb assembly.Unit must be raised
Hang unit with suspended rods an adequate height for installation Vibration Isolators
and"U"channel members. and slope of drain lines. (Supplied by others)
ATTENTION
Flexible duct connectors should be installed
between the HRV and the galvanized ductwork.
•
12
The Ductwork System
A properly designed ducting system will allow the ducting one size larger than the metal equivalent. Use
HRV/ERV to operate at its maximum efficiency. (Air flow flexible duct connectors at the HRV/ERV to avoid noise
• will be restricted by undersized ducting, use of too many transmission.
elbows, tees, bends, etc.). Always try to keep duct runs as All duct joints must be secured with screws, rivets or duct
short and straight as possible. sealant and sealed with aluminum duct tape to prevent
NOTE:Fully insulated ducting with an integral vapor leakage.
barrier must be used on all runs passing through
unheated areas in order to avoid condensation ATTENTION
problems and energylosses from the air steams. !:
All joints must be airtight, sealed and impervious to
moisture. See specification sheets for each unit for exact Fully insulated ducting with an integral
duct sizes and location. vapour barrier must be used on all runs
To minimize pressure drop and noise, galvanized metal passing through unheated areas in order to
ducts, properly sized, are recommended. Keep ducting as avoid condensation problems and energy
short as possible and use a minimum of elbows and tees. losses from the air systems.
Connecting sections and shorter runs may be flexible
Outside Weatherhoods
The weatherhoods must have built-in "bird" screen with Ducting from the Weatherhoods
1/4 in (6.35 mm) minimum mesh to prevent birds and Galvanized sheet metal ducting with sufficient cross section
rodents from entering into the ductwork.Do not use smaller with an integral single piece vapor barrier should be used to
mesh as it will be very susceptible to plugging up. Gravity connect the HRV/ERV to the weatherhoods. All ducting
dampers at the vents must not be used as they will restrict must meet UL Class 1 requirements.
air flow and often "seize up". The preferred location of the A minimum R value of insulation should be equal to
outside weatherhoods is: 4(RSI 0.75)
• no less than 10 ft. (3 m)apart from each other A good bead of high quality caulking(preferably acoustical
• at least 18 in(46 cm)above snow line or ground level sealant)and taping with a high quality aluminum foil tape is
• away from sources of contaminants, such as recommended to seal the duct to both the HRV/ERV and
automobile exhaust fumes, gas meters, garbage cans, the weatherhood.
containers,etc.
• not exposed to prevailing winds
The outside perimeter of the weatherhood must be caulked
to prevent leakage into the building.
The design and size of the weatherhoods or louvers chosen
by the installer must allow for adequate free area.Water and
debris penetration of the system is minimized when the
airflow does not exceed 1000 FPM (5.08 m/s) free area
velocity.
13
Stale Air Return System
The stale air return system is used to draw air from the located in the ceiling or high on the walls and fitted with
points in the building where the worst air quality problems inlet grilles.
occur. Balancing dampers and/or adjustable grilles are Many commercial activities produce air contaminants in the
recommended on all return air lines which are used during form of dusts, fumes, mists, vapors and gases.
installation to help balance the "draw" from different areas Contaminants should be controlled at the source so they are
of the building. not dispersed through the building or allowed to increase to
Alternately, the stale air may be drawn directly from the toxic concentration levels. The ventilator allows for
return air duct. When this system is used, the air handler's economical operation of the HVAC system while
blower must constantly operate. The exhaust take-off effectively removing contaminants from the space. In
connection must be at least 3 ft (1 m) from a directly designing the exhaust portion of the system the exhaust
connected HRV/ERV supply duct if both are connected to grilles are situated to remove the contaminants while not
the same duct run. Note and compensate for the static allowing them to enter the breathing zone of the occupants.
pressure of the air handlers return system if the static For contaminants lighter than air, grilles should be located
pressure of the return in the air handler exceeds .1 to .15" high on the wall. If contaminants are heavier than air, a
W.C. lower placement of the grilles will be required. Information
A damper located just prior to the HRV/ERV is required to on a contaminants specific gravity and toxicity should be
balance the stale air exhausted with the fresh air supply available from chemical data sheets.
entering the building.
Return air suction points should be located on the opposite
side of the room from the fresh air inlet. The inlets may be
Fresh Air Supply System
The fresh air supply ductwork from the HRV/ERV may be When installing an HRV/ERV, the designer and installer
directly connected to the return air duct of the forced air should be aware of local codes that may require smoke
system. Check the air flow balance of the HRV/ERV with detectors and/or firestats in the HVAC or HRV/ERV
the air handler blower both "ON" and "OFF" to determine ductwork.
that it does not imbalance the HRV/ERV more than 10%. Because an HRV/ERV is designed to bring fresh air into the
Also,it is advisable to include a short length of flex duct or building, structures may require supply voltage interrupt
other non-metallic connector in this hard ducted line in when smoke or flame sensors are triggered, or when a
order to keep the HRV/ERV acoustically isolated and central fire alarm system is activated.
separately grounded(electrically)from the air handler. This Supply air grilles may be ceiling or high wall mounted.
will avoid a possible shock hazard to service people if a Avoid locating incoming fresh air grilles that could cause a
short to ground develops in one of the devices. direct draft on the occupants as the incoming air may be
It may be necessary to install a separate fresh air supply below room temperature. A reheat duct heater can be
ductwork system if the heating is other than forced air. installed to improve occupant comfort.
•
Adjustable Grilles
The use of balancing dampers or adjustable grilles as
supply air diffusers and air exhaust covers aretirsam
recommended. TECHGRILLEST" are round, efficient, 1)11 AIR FLOW
sound absorbing devices available in 4", 5", 6" and 8" ®nom
SUPPLY
(100, 125, 150,and 200 mm)models.
Part#99-EAG4 4"diameter Techgrille
Part#99-EAG5 5"diameter Techgrille ma4
Fart#99-EAG6 6"diameter Techgrille
Part#99-EAG8 8"diameter Techgrille AIR FLOW
EXHAUST
I
14
The Integrated HVAC System
The HRV/ERV has become an integral component of the In installations where it is satisfactory to provide general
HVAC system. Figure A shows an HRV/ERV unit exhaust from the space,the air to be exhausted may be taken
providing fresh air directly to the return air plenum of a directly from the return air plenum to the HRV/ERV as it is
rooftop heat/cool unit. drawn back to the air handler. Fresh air supplied by the
In the balanced airflow system, the FIR V/ERV exhaust HRV/ERV is then introduced directly into the return air
removes stale room air (eg. from lunch room, storage or plenum but at a location closer to the air handler. The air
copy area)and returns to the space an equal amount of fresh handler would have a constant running blower to effectively
distribute the fresh air and remove the stale air. Balancing
outdoor air, making the use of an economizer obsolete in
conjunction with an HRV/ERV. dampers would be located in both the HRV/ERV supply and
Many buildings have ceiling return air plenum as in Figure exhaust ducts between the return air plenum and the
B. Fresh air from the HRV/ERV can be introduced directly HRV/ERV.
into the ceiling space but this should occur near the air NOTE:At no time should the air handler T.E.S.P. on the return
handler's intake. duct exceed that of the HRV/ERV.
By operating the HRV/ERV on a 24 hour/7 day battery
backed tinier, the unit can be set to operate only when Q CAUTION
occupancy or indoor conditions require the air exchange.
When interlocking a rooftop unit with an
HRV/ERV, care must be taken to ensure the fans
of both units operate in the correct rotation.
ECONOMIZER
Figure A
ROOFTOP
UNIT
Ac SUPPLY D
RETURN AIR DUCT or
BREATHER T
FRESH AIR HRV/ERV UNIT 1B.D.
SUPPLY
—► , ===>-.. IJ
I
B.D.
STALE AIR HRV/ERV FRESH
EXHAUST AIR SUPPLY
STALE AIR
EXHAUST TO HRV/ERV
— ECONOMIZER
Figure B
ROOFTOP
UNIT
ROOF DECK —
CEILING RETURN AIR PLENUM „ �-12”BREATHER
�r SPACE SUPPLY DUCTWORK
`—'
FRESH AIR HRV/ERV UNIT 17 J B.D.
SUPPLY 000
—0 .. ..� `. as
B.D. "` I" 11/4�
STALE AIR HRV/ERV FRESH
EXHAUST AIR SUPPLY STALE AIR EXHAUST
Example only-Duct connections not typical
15
Drain Connections
The HRV/ERV must be level for proper drainage of Install the drain pans in the bottom of the HRV so the drain
condensate from the drain pans. connections protrude through the holes provided. Use drain
Install a loop or"P Trap" in the condensate line and pour a hoses with hose clamps to connect the drain pan outlets to a
cup of water into the drain pan.This will create a water seal floor drain or standpipe. Make sure the drain line slopes
which will prevent odors from being drawn up the hose and down to the outlet. If this is not possible, a condensate
will be required for positive removal of the water.
pump into the fresh air supply of the HRV/ERV. um the drain line from freezing.
Protecta
HRV CABINET
•
DRAIN 11
SPOUT DRAIN
SPOUT
TAPE TEE
CONNECTOR
Forming the"P"Trap TO DRAIN
L CAUTION CAUTION L
The HRV and all condensate lines must be Drain trap and tubing MUST be below
installed in a space where the temperature is bottom of door with 1/4" per foot
maintained above the freezing point. downwards slope away from unit.
Electrical Connections and Self Test
Electrical Connections Automatic Self Test-(FD Models)
It is recommended that a licensed electrician make all Unit will perform a self test each time power is first applied.
electrical connections. It is very important that the unit be Approximate duration-2 minutes.
properly grounded. It is recommended that a separate 1. Unit will cycle both blower assemblies through all three
15 amp/120 volt circuit be used. speeds holding at each speed for 15 seconds.
WARNING: In order to prevent electric shock when
2. Both blower assemblies shut down for 30 seconds.
cleaning or servicing the HRV/ERV, it is extremely
important to confirm the polarity of the power line that is 3. Unit will run only the upper blower assembly through all
switched by the safety (disconnect) switch whose control three speeds holding at each speed for 15 seconds.
arm is located on the outside of the electrical control box 4. Self test ends and normal operation resumes.
area. The hot line (black) is the proper line to be switched.
To confirm the proper polarity,use a voltmeter or test lamp
to make sure there is no power after the switch when the CAUTION
door is open. Check between that point and ground
(on the cabinet). This must be done as occasionally some The HRV is designed to operate with ducting.When
buildings are improperly wired. Always make sure the
HRV/ERV is properly grounded. first starting the HRV, measure the amp draw to
Automatic Self Test-(DD Models) each motor to ensure it is operating at or below the
Unit will perform a self test each time power is first applied. max rating.
Approximate duration- 1 minute. Maximum AMP Rating
1. Unit will cycle both blower assemblies through all HIGH MED. LOW
three speeds holding each speed for 15 seconds.Damper 1200DD PLUS.1200ED PLUS 9.4 6.0 4.5
is in ventilation position.
700DD PLUS.700FD PLUS 4.5
2. Unit will power the damper motor.
3. Self test ends and normal operation resumes.
16
HRV Defrost Strategies(Fan Defrost and Damper Defrost)
Fan Defrost Damper Defrost
Models 700FD,700 FD PLUS,850FD, 1200FD, Models 700DD,700DD PLUS, 850DD, 1200DD
1200FD PLUS These damper defrost HRVs have an electronically
Fan defrost HRVs are equipped with an electronically controlled damper defrost mechanism. If the outside
controlled fan defrost system to remove frost that collects on temperature drops below 27°F(-3°C ), the defrost timer is
the warm air side of the aluminum heat transfer surfaces of activated. A motor driven damper door mechanism opens
the heat exchanger core. When the outside air temperature the defrost port and at the same time closes off the supply
drops below 27°F(-3°C), defrost is activated which air from outside. After the defrost period, the damper
provides for an automatic defrost cycle. During the operates in the opposite direction to close off the defrost
automatic defrost cycle the fresh air supply is shut off while port and reopen the fresh air at the supply port. Defrost
the exhaust fan continues to operate. This allows warm cycle repeats until the temperature again rises above 27°F
inside air to flow through the heat exchanger core melting (-3°C).
frost accumulation. After the defrost period, the fresh air
supply fan automatically returns to the normal speed and
fresh outside air continues to be drawn into the building.
Water from the melted frost collects in the bottom drip pans
and drains out through the bottom drain connections. The
defrost cycle repeats automatically until the air temperature
rises above 27°F(-3°C).
Defrost Time Adjustment 700FD/DD,700FD/DD PLUS, 850FD/DD, 1200FD/DD,1200FD/DD PLUS
DIP switch #8 will adjust the defrost time. Do not change ATTENTION
any of the other DIP switch settings.
Change DIP switch #8 only as illustrated
on this page. Do not adjust any other
•
switches.
-S ON —>ON
1 mom 1 mom
2 0 2 Nimil
3 mom 3 CI
4 ism= 4 mom
5 0 5 0
6 mom 6
7 mom 7
8 Emi 8 CEN
Factory Setting(DIP Switch 8 OFF) Increased Defrost Time(DIP Switch 8 ON)
The HRV enters defrost mode when outdoor temperatures Cooler climates may require a more aggressive defrost
drop below 27°F(-3°C). cycle.
The factory defrost cycle is 4 minutes defrost with a Positioning DIP switch 8 to ON will initiate a 4 minute
30 minute run time. defrost with a 20 minute run time.
17
Reversing the Supply and Defrost Air Ports(Damper Defrost Units only-Models 700DD,850DD, 1200DD)
Sometimes installation is easier if the "Supply Air from these two ports is easily accomplished by switching the red
Outside" is ducted from the upper left side port (Defrost and yellow defrost motor wires at the circuit board. Switch
Air) instead of the top port. Changing the functionality of T37 and T39 on the Aircom circuit board.
SUPPLY AIR
FROM OUTSIDE
1=
DEFROST EXHAUST AIR
AIR I L TO OUTSIDE
EXHAUST AIR SUPPLY AIR
FROM BUILDING TO BUILDING
N.0
N.O.COM N.C. N.O.COM N.C. N.O.COM N.C. N.O.COM 42
I11FDir2 00040731)II1T42FF.
Contact I Contact 2 Contact 3 Contact 4
- I
RED YEL
Switch T37 (red wire) and T39 (yellow wire) on the
Aircom circuit board if you wish to reverse the"Supply Air
From Outside"and"Pool and Defrost Air"ports. I
This illustration shows the factory configuration. 0 0 0
CCW COM CW
18
Optional Ventilation Control Part#99-BC-01'
The optional 2 speed Ventilation Control offers ON/OFF, High A flashing light indicates the humidity level is higher than the setting
Speed/Low speed plus an electronic dehumidistat. and the unit is operating on high speed ventilation.A continuous light
Key Features indicates the humidity level is lower than the setting.Refer to the unit's
• 2 Speed Fan setting(Low/High) Operation & Installation Manual for instructions on how the
Dehumidistat works.
• Electronic Dehumidistat
Note-Only 1 dehumidistat should be active on a system.
• Instruction Card is inserted in the control
• Slim-line design Instruction card
• Connect to 3 wire 20 gauge low voltage wire. �rrA
Turning on the Control
Press and release the ON/OFF button. The "ON Indicator Light" will VENT/LAT/ONFAN Dehumidistat
illuminate. Indicator LEDs
On
Adjustingthe Ventilation Speed
indicator
light High Speed
The unit will normally operate at low speed. Press and release the • � Indicator LED
/
SPEED button to initiate high speed ventilation. The "High Speed ��
High/Low
Indicator LED"will illuminate.
Humidity Control !1 butioa
Your unit will produce a dehumidifying effect when outdoor humidity oi
levels are lower than indoor humidity levels. Never use the U ' ON/OFF
4,,g. button
dehumidistat feature when outdoor temperatures are above 59 F(15 C).
DE,,
SPEED
Setting the Dehumidistat
Press and release the DEHUMIDISTAT button until the
DEHUMIDISTAT LED is at the desired setting. After 5 seconds the
dehumidistat light will either flash or be on continuous.
Optional 3 Speed Control-Part#99-500
1
• r, The Optional 3 Speed Control offers ON/OFF and
high/medium and low speeds-3 Speed Fan setting
(Low/Medium/High)
(4wire)20 gauge wire(minimum)
tit -Connect to Red,White,Yellow,Green.
OFF
HIGH
OFF
MED
OFF
LOW
19
Optional Dehumidistat-Part#99-DH-01
Key Features Instruction card
• The Dehumidistat measures the indoor humidity level and will
initiate high speed ventilation when the moisture level in the
building exceeds the set point on the control.
• Once the humidity in the building is reduced,the HRV will revert VENTILATION FAN
Dehumidistat Indicator
back to its previous setting. LEDs
• The Dehumidistat should be set to OFF for all season except the
heating season.
h
leSetvel.Htheigh speeddesired ventilatumwill inititoate when the indooridityion
• Connect to 3 wire 20 gauge low voltage wire. � moisrure level exceeds the set
point on the control.
Humidity Control
Your HRV will produce a dehumidifying effect when outdoor humidity
levels are lower than indoor humidity levels. Never use the
dehumidistat feature when outdoor temperatures are above 59 F(15 C).
DEHUMIDISTAT Dehumidistat
Note:The indoor humidity level is measured at the control. Adjust button
Setting the Dehumidistat
Press and release the DEHUMIDISTAT button until the
DEHUMIDISTAT LIGI-IT is at the desired setting.After 5 seconds the
dehumidistat light will either flash or be on continuous.
A flashing light indicates the humidity level is higher than the setting
and the unit is operating on high speed ventilation.A continuous light
indicates the humidity level is lower than the setting.Refer to the unit's
Operation & Installation Manual for instructions on how the
Dehumidistat works.
Note-Only 1 dehumidistat should be active on a system.
Optional Timers
The timer will override the Operational Mode (regardless of the
settings) and initiate high speed ventilation. Upon completion of the
timer cycle, the HRV will return to your selected Operational Mode
and speed setting.
!
1
Lifestyle 20/40/60 Minute Timer (' 20/40/60 Minute
Part#99-DET01UricStatus Lights
Initiates high speed ventilation for 20,40 or 60 minutes.The 20/40/60 �u f._
Minute Status Lights indicate high speed operation.
11
Lockout Mode is useful if you wish to disable the timer.Set lockout by
holding the Select Button for 5 seconds. Unlock by holding for
5 seconds. I ; Select Button
Connect to 3 wire 20 gauge low voltage wire. Mounts in a standard
2"x 4"electrical box.
Lifestyle 20 Minute Timer I
Part#99-20M01
Initiates high speed ventilation for 20 minutes. The 20 Minute Status
Light indicates high speed operation.
Lockout Mode is useful if you wish to disable the timer.Set lockout by t 20 Minute
holding the select button for 5 seconds. Unlock by holding for 1 Status Lights
5 seconds. cog/
Connect to 3 wire 20 gauge low voltage wire. Mounts in a standard
2"x 4"electrical box.
I Select Button
20
Function and Controls
Basic Functions Setup
Speed control is obtained by powering 24V to one of Select appropriate operational speed by installing the
the designated speed taps. jumper wire between one of the designated speed taps.
(A jumper wire is factory installed in the low speed
Example: position.)
A jumper between the R terminal and the
G terminal will result in low speed operation. Note:
It is recommended to use the optional speed control
Jumper Wire 24V Part#99-500 in order to obtain 3 speed fan control.
Placement
on Micro Jumper ciel
SPEED JUMPER
Processor Wire
Board High R W
HIGHIIII.r� ' Medium R Y
MED a Low R G
LOW
Optional Speed Control(Part#99-500) Micro Processor Board
Connect to Red,White,Yellow,Green
-1>o
y Cy
0 0 0 u-i ` t7V 2 N
•
..1 -....
e 0 -. ^ 13 g N v
® so=
\`` 0<m g F
i
?cid .. _
o, � - Kim
—n
_ m v . `° N
co I—3 G
o
n0c, v -
I ��6 i g C N on u —
-
\ co co 0—
L••�,_F a
d-
0 C
il
b S4Z IE
Front View Back View I,y m. - 0--
-1 0 Fr 0
N y • -
Ti_m_ ^— N KMRI�L V.IH
co
C__
_
...vi s Ill ('
,w4W u
Optional Digital Electronic a U o . ��
' x
Timer(DET)Part#99-DET01 " - C
11 n E
• J k
Connect up to 4(maximum) 114111 U
soP - r s
og Refer to"Connecting Optional
Boosts to high speed for 20,40, o - *' t
60 minutes o G Digital Controls"in this manual
o U L- for instructions on connecting the
• Connect to Yellow, Red&Green -og - n € optional Ventilation Control
.mo (Part#99-BC-01) P and optional
A Tx 2 U - Remote Wall Dehumidistat
V oP - E. (Part#99-DH-01)
1 T40
Et 14)
~o^ it Io1°< Connect to Yellow, Red&Green
21
Connecting Optional Digital Controls
Standard Series Controls may be installed onto a flush mounted �1 ATT E N T I O N
2"x 4" electrical switch box or it may be surface mounted onto a •
wall. Pay special attention not to damage the Contact
Only 1 master control should be installed to a ventilation system Pins when attaching and detaching the Face Plate.
(the Face Plate on this illustration may not be exactly the same as (Figure B)
yours).
1. Remove the Operating Instructions Card from the top of the Operating
Control(Figure A). Instructions Card
2. Separate the Face Plate from the Back Plate by firmly pulling
apart(Figure B). Be careful not to damage Face Plate Contact ,,,,,
✓ENTIUnONPAN
Pins. '�
x Face /r I Back
3. Place the Back Plate of the control in the desired location on Plate Face Plate 4..........-Plate
the wall and pencil mark the wall in the center of the Wire n Contact
Opening, Top Screw Hole and Bottom Screw Hole(Figure C). 2 G „ Pins
•
4. Remove the Back Plate and drill a 3/8"opening in the wall to _
ro /
allow for the Wire Opening and a 1/8" hole for the Wall "• =-,.....,
Anchors for the top and bottom screw holes(Figure D).
5. Pull 3/20 wire through the opening in the wall and the Wire J 4 —
Opening of the Back Plate(Figure C). v
Separate the
6. Connect Red, Green and Yellow to the Wiring Terminals Figure A- Figure B Face Plate from
located on the Back Plate(Figure C). Face Plate Side View the Back Plate.
(Illustration of Face
7. Secure a single wire to the Wire Retainer located on the Back Plate may vary from
Plate(Figure C). actual control)
- 8. Attach the Back Plate to the wall using the 2 supplied screws Top Screw
and anchors. Hole
• I I Drill a t/8"hole
9. Attach the Face Plate to the Back Plate (Figure B). ,+. `P .0 for the Top Screw
• Note: Be careful to correctly align the Face Plate to avoid f TOP wire and Anchor
' Opening
damaging the Face Plate Contact Pins.
e
10. Insert the Operating Instructions Card into the control O Drill a 3/8"hole
(Figure A). � O for the Wire
Bm8 Wire opening
11. Connect the 3/20 wire to the Terminal Block located on
_ I Retainer Drill a 1/8"hole
ventilator(Figure E). R G r� Y/for the Bottom
ng
ill .� TerWiriminals Screw and
- Anchor
Bottom
Screw Hole
Figure C Figure D
Front View of Back Plate Drill holes in wall
Figure E
Connect optional digital controls
y to the Digital Controls terminal
C cc strip located on the Aircom Wall Face
C Circuit Board. v Back
Plate
V w E • Yellow to YELLOW Face /4F 1gill
Ca • Red to RED Plate J Face Plate
Contact
4 tl • Green to GREEN - Pins
t
• 5 , Use 3/20 wire , /
rilk
T— ■ Dehumidistat Sensor
Figure F iI um Openings to room
The Aircom terminal strip air allow accurate
Correct Installation sensor readings.
located on the Aircom of Back Plate
circuit board.
22
Balancing the HRV Pitot Tube Airflow Balancing
It is necessary to have balanced air flows in an HRV/ERV. The any elbows or bends, and one foot upstream of any elbows or
volume of air brought in from the outside must equal the volume of bends.These are recommended distances but the actual installation
• air exhausted by the unit. If the air flows are not properly balanced, may limit the amount of straight duct.
then; The Pitot tube should be connected to a magnehelic gauge or other
• The HRV/ERV may not operate at its maximum efficiency manometer capable of reading from 0 to 0.25 in.(0-62 Pa)of water,
• A negative or positive air pressure may occur in the house preferably to 3 digits of resolution.The tube coming out of the top of
• The unit may not defrost properly the picot is connected to the high pressure side of the gauge. The
• Failure to balance HRV/ERV properly may void warranty tube coming out of the side of the picot is connected to the low
Excessive positive pressure may drive moist indoor air into the pressure or reference side of the gauge.
external walls of the building where it may condense Insert the Pitot tube into the duct;pointing the tip into the airflow.
(in cold weather) and degrade structural components. May also For general balancing it is sufficient to move the pitot tube around in
cause key holes to freeze up. the duct and take an average or typical reading. Repeat this
Excessive negative pressure may have several undesirable effects. procedure in the other(supply or return)duct. Determine which duct
In some geographic locations, soil gases such as methane and has the highest airflow (highest reading on the gauge). Then
radon gas may be drawn into the home through basement/ground damper that airflow back to match the lower reading from the other
contact areas. Excessive negative pressure may also cause the duct. The flows should now be balanced. Actual airflow can be
backdrafting of vented combustion equipment. determined from the gauge reading.The value read on the gauge is
Prior to balancing,ensure that: called the velocity pressure.The Pitot tube comes with a chart that
will give the air flow velocity based on the velocity pressure
1.All sealing of the ductwork system has been completed.
indicated by the gauge.This velocity will be in either feet per minute
2.All of the HRV/ERV's components are in place and functioning or meters per second.To determine the actual airflow,the velocity is
properly. multiplied by the cross sectional area of the duct being measured.
3.Balancing dampers are fully open. This is an example for determining the airflow in a 6"duct.
4.Unit is on HIGH speed. The Pitot tube reading was 0.025 inches of water.
5.Air flows in branch lines to specific areas of the house should be From the chart,this is 640 feet per minute.
adjusted first prior to balancing the unit.A smoke pencil used at The 6"duct has a cross sectionalof
the grilles is a good indicator of each branch line's relative airarea =[3.14 x(6"i-12)1+4
flow. =0.2 square feet
6.After taking readings of both the stale air to the HRV/ERV duct The airflow is then:
and fresh air to the house duct,the duct with the lower CFM([Us] 640 ft./min.X 0.2 square feet =128 cfm
velocity)reading should be left alone,while the duct with the For your convenience,the cross sectional area of some common
higher reading should be dampered back to match the lower round duct is listed below:
reading. DUCT DIAM. (inches) CROSS SECTION AREA(sq.ft.)
7.Return unit to appropriate fan speed for normal operation
Balancing Procedure 5 0.14 1
The following is a method of field balancing an HRV/ERV using a 6 0.20
Pitot tube, advantageous in situations when flow stations are not 0.27
installed in the ductwork. Procedure should be performed with the
HRV/ERV on high speed. The accuracy of the air flow reading will be affected by how close to
The first step is to operate all mechanical systems on high speed, any elbows or bends the readings are taken. Accuracy can be
which have an influence on the ventilation system,i.e.the HRV/ERV increased by taking an average of multiple readings as outlined in
itself and the forced air furnace or air handler if applicable.This will the literature supplied with the Pitot tube.
provide the maximum pressure that the HRV/ERV will need to
overcome,and allow for a more accurate balance of the unit.
Drill a small hole in the duct(about 3/16"),three feet downstream of
Pitot tube and gauge
Place pitot tube a minimum of 18"from blower or elbows
Outdoors 5ONO ,
— G •3 <,:xDUCT
1 ,.O._
11111 AIRFLOW
-I I Pitot tube
Balancing �"� 2i•
Damper - `'®
ir` Balancing Magneheiic gauge
■ t � I I r Damper L
4.'/i
�-Pitot �_Pitot
Magneheiic tube Magneheiic tube
gauge qui gauge Pitot Tube Air Flow Balancing Kit
• �en� Note:Duct connections may vary,
.ota c/w magnehelic gauge,Pitot tube:hose and
�� depending on model.
carry case.
Measure Exhaust Air from Building Measure Supply Air to Building PART NO.99-167
23 TI-74-2C
0105
Service and Maintenance
Servicing your HRV/ERV on a regular schedule will result When removing the core, the location it is removed from
in optimum operating efficiencies and prolonged life of the should be noted.
equipment. The core is removed by carefully pulling the core outward
Due to numerous applications in which this equipment can from the unit, sliding it evenly along its "H channel"
be installed, it is difficult to predict servicing intervals. In supports found in each corner of the core. Note the core
certain situations where there is heavy smoke, servicing the may have some resistance when sliding out. Avoid tilting
equipment every one-two months may be needed;whereas the core as this will result in its edges catching the
ventilating a meeting room for carbon dioxide may only H channel and temporarily preventing its removal.
need service every six months to a year. In most cases, washing the core in a mild detergent and
Motor warm water will be all that is needed to completely clean
Access to the motor is through the front service doors.Note them. Do not use harsh chemicals as this may cause
heat exchanger core can be removed to provide more room. corrosion in the HRV. The time between core service will
See CORE in this section. depend on the application the HRV has been installed in. It
The motor is a permanent split capacitor type (PSC)which can be as often as one - two months or at the very least,
uses a sleeve mechanism to steady the shaft.There is an oil cleaned every six months. When reinstalling the core you
wick beside the sleeve which supplies oil to it on a must note foam location and drip edge location for proper
continuous basis. core placement.See diagram below.
If the motor does not have oil tubes, no maintenance is ERV Core(ERV only)
required. Remove core and vacuum or use low pressurized air to
Access to the wick is through oil tubes, (two per motor) clean core.Do not wash or submerse in water.
located in the motor case itself. These oil tubes are either With the core in its proper position,place the bottom flange,
capped with yellow plugs, (which need to be removed for (approximately 1/4") into its H channel support, then place
oiling)or have clear tubes protruding from them. the left side, the right side and finally the top flange into
In either case an oiling device such as an "Oil Telespout" place in the same fashion.Once all four corners are in place,
filled with 20 S.A.E.non-detergent electric motor oil should push the core evenly into the cabinet until it reaches the
be used to put oil inside the tubes. A couple of drops of oil back.Be sure the drip edges are overlapping the drip trays.
' once a year will do.DO NOT OVER OIL! Note the core will protrude slightly out from the front of the
• HRV Core(HRV only) cabinet, this is so the access door, when closed, ensures a
tight fit.
The heat exchange core is accessible through the front
service door. Special care and attention should be given to
this component as the edges may be sharp, and the core
itself susceptible to damage if dropped.
FRONT VIEW
Models 700, 1200 Model 850 Model 500
•
FILTER
DOUBLE
SINGLE /FILTER
EDGE CORE
DRIP
DOUBLE SINGLE DOUBLE
DRIP
DOUBLE
EDGE DRIP EDGE DRIP EDGE
GORE CORE CORE DOUBLE
DRIP DRIP
FILTER-"--* 7 EDGES /r /EDGES \FILTER �/ FILTER
II \ / DRAIN
LEFT DRIP PAN RIGHT DRIP
DRAIN PANS(not on all models) DRAIN PANS(not on all models) EDGE EDGE
A Note location and arrangement of cores and filters when removing.
24
Service and Maintenance
Filters Duct Work
Open front service door to access the filters located in both It is a good idea to inspect ducting, outside weather hoods
supply and exhaust air streams. Note to remove and install (wall caps), and grilles for blockage and dirt buildup, at
filters, it may be easier to first remove the core(s). least every six months.
See CORE. Outside weatherhoods should be protected by a bird screen
The filters are designed to stop large particles from entering which can plug up with debris. Also, it is a good idea to
in the core. The filters are fastened in place by a metal visually confirm that the fresh air supply is free from any
spring rod. To remove filters from core(s) simply pull the sources of contamination, such as other vented combustion
rod from one end, outward until free from core lip, and equipment added after the fact.
remove. Damper Motor
Only use warm water with a mild detergent to wash the The damper motor, (if applicable) is a self contained motor
filters.Do not use harsh chemicals. and does not require service. The damper door attached to
The time between filter service will depend on the the motor could use a little lithium grease on the shaft
application the HRV/ERV has been installed in.It can be as opposite the motor, where it enters its holder, once every
often as one-two months or.at the very least,cleaned every two-three years.
six months. General Maintenance
Condensate Drains As a final step in a routine maintenance schedule, it is a
The condensate drains consist of two drain pans which may good idea to confirm operation of the system, checking
collect water after the HRV/ERV initiates a defrost cycle, speed control functions and remote control operation, if
and a drain line to remove the condensate. applicable.
Maintenance on this portion of the system should be done Wipe the inside of the cabinet to remove dust and cob webs
as often as possible and should not exceed six months.Note as needed.
bacterial growth in standing water is a major concern to It is a good idea to keep a service/maintenance log of the
healthy indoor air quality, and should be avoided whenever unit.
possible.
•
To clean these components, open the front service door and
• flush the pans with water. Ensure that the pans drain
•
completely and in a reasonable amount of time.Note if the
•
water does not drain right away, check for blockage in the
drain line, also check that the drain line has a good slope to
it.(1/8- 1/4"per foot)
The drain line itself should have a "P" trap in it below the
HRV/ERV which is to be filled with water to prevent odors
or gases from entering back into the unit.
•
25
AircomRelays Models 700,850, 1200
The Aircom circuit board has three available "dry contact"
relays.Contact 3 is not available.
Maximum 115V 10 amp resistive load.
Contact 1 Contact 2 and 4
The relay initiates when the HRV is in defrost. These relays initiate whenever the I-IRV fans are operating.
SPARE SPARE
KS K7 K1 K2Ka K7 El K2
E E
F2 MAX 2amp F2 MAX2amp —
n IA
\WA/WV N.0 W\M/VVV N.0
P2 P3 N.O.COM N.C. N.O.COM NC. NA.COM N.C. NO.COM 142 P2 P3 NO.COM N.C. N.O.COM N.C. N.O.COM N.C. N.O.COM 14U
2
F, R 24Vac Ilir17)aH11i,1r11`R0 [1r113 OF1; o R 24Vac U U~�~U~U~U~U~U~U~UFU~
al
' it T25 I T29 T30 m - 129 129 130.
Contact 1 Contact 2 Contact 3 Contact 4 Contact 1 Contact 2 Contact 3 Contact 4
Interlocking the HRV to an Air Handler with a Thermostat Models 700,850, 1200
Use contact 2 or 4 to interlock the HRV to an Air Handler p CAUTION
or Furnace.
Connecting the HRV as illustrated will ensure the Air Consideration must be given to competing
Handler Blower Motor is operating whenever the HRV is
ventilating. airflows when connecting the HRV in
conjunction with an Air Handler/Furnace Blower
system.
SPARE
• K8 K7 K1 K2 T43
F2 MAX 2amp
P2 P3 Contact 1 Contact 2 Contact 3 Contact 4
FO o R 24Vac N.O.COM N.C. N.O.COM N.C. N.O.COM N.C. N.0.COM N.C.
m y 7717777 130 T31 T32 T33 134 T35 T36 T37 138 139 140 1141 '142
1 1 1
1 I 1
1 1 I .
1 1
I I
' 1
LEGEND
I
HIGH VOLTAGE , I\
I ' I
12V LOW VOLTAGE
FIELD INSTALLED _ _ . I I I I I I I
LOW VOLTAGE I 1 I +
ii I I
RGWY
i
I 1
wire • •
� I ■ connector 1 1
Thermostat
I
4 Air Handler/ I
• • aI
Furnace RGWYC
Terminal Strip f • 1
I 1
1 I ,1\ — — —
26
- '-
Troubleshooting Your HRV/ERV System
SYMPTOM CAUSE SOLUTION
• Poor Air Flows • 1/4"(6 mm)mesh on the outside hoods is plugged • clean exterior hoods or vents
• filters plugged • remove and clean filter
• core obstructed • remove and clean core
• building grilles closed or blocked • check and open grilles
• dampers are closed if installed • open and adjust dampers
• poor power supply at site • have electrician check supply voltage
• ductwork is restricting HRV/ERV • check duct installation
• improper speed control setting • increase the speed of the HRV/ERV
• HRV/ERV airflow improperly balanced • have contractor balance HRV/ERV
Supply air feels cold • poor location of supply grilles,the airflow may irritate the • locate the grilles high on the walls or under the
occupants baseboards,install ceiling mounted diffuser or grilles so as
not to directly spill the supply air on the occupant
(eg.over a sofa)
• outdoor temperature extremely cold • turn down the HRV/ERV supply speed.A duct heater may
be necessary to temper the air
• placement of furniture or closed doors is restricting the
movement of air in the building
• if supply air is ducted into furnace return,the furnace fan
may need to run continuously to distribute ventilation air
comfortably
Dehumidistat is not Operating • improper low voltage connection • check that the correct terminals have been used
• external low voltage is shortened out by a staple or nail • check external wiring for a short
• check dehumidistat setting it may be on OFF • set the dehumidistat at the desired setting
Humidity Levels are too High • dehumidistat is set too high • set dehumidistat lower
Condensation is appearing on • moisture coming into the building from an unvented or • vent crawl space and place a vapor barrier on the floor of
the windows unheated crawl space the crawl space
• moisture is remaining in the washroom and kitchen areas • ducts from the washroom should be sized to remove moist
air as effectively as possible, use of a bathroom fan for
short periods will remove additional moisture
• condensation seems to form in the spring and fall • on humid days,as the seasons change,some condensation
may appear but the building air quality will remain high with
some HRV/ERV use
• HRV/ERV is set at too low a speed • increase speed of the HRV/ERV
Humidity Levels are too Low • dehumidistat control set too low • set dehumidistat higher
• blower speed of HRV/ERV is too high • decrease HRV/ERV blower speed
• humidity may have to be added through the use of humidifiers
• HRV/ERV air flows may be improperly balanced ' • have a contractor balance HRV/ERV airflows
HRV/ERV and/or • Note: minimal frost build-up is expected on cores before
Ducts Frosting up unit initiates defrost cycle functions
• HRV/ERV air flows are improperly balanced • have HVAC contractor balance the HRV/ERV
• malfunction of the HRV/ERV defrost system
Condensation or Ice Build Up in • incomplete vapor barrier around insulated duct • tape and seal all joints
Insulated Duct to the Outside • a hole or tear in outer duct covering • tape any holes or tears made in the outer duct covering
• ensure that the vapor barrier is completely sealed
Water in the bottom of the • drain pans plugged • ensure 0-Ring on drain nozzle sits properly
HRV/ERV • improper connection of HRV/ERVs drain lines • look for kinks in line
• HRV/ERV is not level • check water drain connections
• drain lines are obstructed • make sure water drains properly from pan
•
• HRV/ERV heat exchange core is not properly installed
27
�, • F
1
7
CAUTION: ELECTRICAL CONTROL PANEL, SERVICE BY ELECTRICIAN ONLY
Commercial Wiring Diagram for Fan Defrost
N.O. Normally open 0
p
N.C. Normally closed WHITE N,
COM Common ^'
WHITE *
T# Terminal ..
P# Plug ='
I
# Relay ��F# Fuse
SW# Switch Upper / I Lower
GNDlin BLACK
n n n n ^ n
WHITE
n
U
Q
BLACK /- BLACK m BLACK RED
n
Door Switch
BLACK WHITE —h n n RED
n
BLUE
BLACK
n.IV
el.
^ BLUE
CO
T1 12 T3 T4 15 16 113 T14 T15 116 I C4 I I C3 I I T17 I I C2 I 1718 I I C1 11119 I
RELAY
Fan Hi Fan Med Fan Low FEED
Line/Cigna Neutral/Neutra
T11 1112 I T20—
I
IN.O. I N.O. N.O. N.O. O_ -.
CHASSISO..
COM COM COM COM .
T44
K6 K3 K4 K5 - 01:.
8 7 6 5 4 3 2 1 DIP SWITCHES TO BE -I,
T21 722 123 124 ff ADJUSTED BY QUALIFIED
Transformer aux t AUX 2PI !IIlij W TECHNICIANS ONLY.
11
ON �,
12/24 Vac [II ! SEUL UNTECHNICIEN
SW1 0'
QUALIFIE PEUT AJUSTE LES SPARE
COMMUTATEURS DIP. 50 K7 K1 K2
IT43
0
O'
m12 AMPS Y
N.0l CI
V
P1 CD
Digital Controls P2 P3 N.D.COM N.C. N.O.COM N.C. N.O.COM N.C.[I ea um N.O.COM T42 O
12Vac Com C Thermostat DET .61' oIll
[1140n C
125 126 T27 C R W Y G 0 YEL GRN RED il128 T29 T30 - - -a:.
-Contact 1 Contact 2 Contact 3 Contact 4 N
BLUE I 0
THERMISTOR O I 0
WHITE m
RED C
98-FD-01