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� L>IVSTALLATION INSTRUCTIONS
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HOLD DOWN BRACKETS
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117
IMPORTANT: Please read all installation instructions and safety precautions before beginning.
These installation instructions are to be used as a general guideline only!
TABLE OF CONTENTS SAFETY PRECAUTIONS
General 1 Improper installation, adjustment(s), alteration(s), service or
Safety Precautions 1 maintenance can cause property damage, injury or death.
Unpack&Inspect Installation and servicing of air-conditioning equipment can be
Install Hold Down Brackets 2 hazardous due to system pressure and electrical components.
MicroMetl Contact Info 3 Only trained and qualified service personnel should install, repair,
or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions
such as replacing filters.All other operations should be performed
by trained service personnel. When working on air-conditioning
equipment, always observe precautions in the literature,tags and
labels attached to the unit, and other safety precautions which
may apply!
GENERAL To avoid any property damage or personal injury,it is the installer's
responsibility to be certain that the installation will not impair the
The MicroMetl hold down bracket is designed to secure the roof top function of this curb, or the unit to be installed.
unit to the roof curb.MicroMetl hold down brackets are available in
quantities of four,six,and eight.The addition of a hold down bracket Check and disconnect all gas and electrical connections before
package does not provide wind or seismic certification. The hold installing your new curb and rooftop unit.
down bracket must be installed prior to setting the RTU.
A WARNING
To prevent injuries and rain damage,do not leave roof open-
"l ing uncovered.If installation is not completed immediately
ter � p
after roof opening is cut and framed, provide an adequate
temporary cover for the roof opening.
UNPACK & INSPECT
Reference the Product Submittal for your specific part number
and a product illustration of all necessary parts. Unpack, locate all
parts, and inspect product for missing parts or damages. Contact
MicroMetl's Customer Service Department immediately with any
questions or concerns.
All hardware used for these assembly procedures is included. Do
not tighten any hardware until the curb is completely level,square,
'Es and installed in a suitable position on the roof with proper alignment
# `17Y.,= to the roof/unit opening(s).
4114.
Illustration 1 -Generic Hold Down Bracket
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Form No.9100-18498-1P
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INSTALL HOLD DOWN BRACKETS
Install all hold down brackets prior to installing rooftop unit. Hold A______---ROOFTOP UNIT
down brackets must be installed on the curb and attached to the unit 4111. GASKETING
base rails. See detail illustrations 2-4. Hold down brackets are to SELF DRILLINGROOFTOP UNIT
be located as shown in illustration 5 on page 3 and spaced evenly. TEK SCREW �� 7 BASE RAIL
SELF DRILLING
Secure the hold down brackets to the curb with self drilling screws
A
I� TEK SCREW
using the pre drilled holes as a guide. Make sure the brackets are flush with the curb.See illustration 6 on page 3. WOOD NAILER HOLD DOWN
BRACKET
Repeat this process for the remaining hold down brackets.
Proceed to applying the gasket material once all hold down brackets
are secured to the curb. ROOF CURB
I_____..*---7-
Properly place the rooftop unit onto the roof curb.Refer to the roof-
top unit installation manual for rigging and placement instructions
provided by the manufacturer.
Using the provided self drilling screws, secure the hold down Illustration 3
brackets to the unit base rail once the roof top unit is set in place.
See illustration 2-4.
ROOFTOP UNIT ROOFTOP UNIT
72 _— GASKETING GASKETING
SELF DRILLING 01111
ROOFTOP UNIT __ - ROOFTOP UNIT
TEK SCREW BASE RAIL BASE RAIL
SELF DRILLINGWOOD NAILERSELF DRILLING
—TEK SCREW TEK SCREW
WOOD NAILER IHOLD DOWN
fig,
HOLD DOWN
BRACKET
BRACKET
ROOF CURB ROOF CURB
Illustration 2 Illustration 4
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Form No.9100-18498-1P
ef
HOLD DOWN BRACKETS �
QUANTITY of 4
Self Drilling Tek Screw
Illustration 6
•
HOLD DOWN BRACKETS
QUANTITY of 6
HOLD DOWN BRACKETS
QUANTITY of 8
• Illustration 5-Hold Down Brackets Location
MicroMetl Indianapolis MicroMetl Longview MicroMeti Sparks
3035 N.Shadeland Ave.,Suite 300 201 Kodak Blvd. 905 Southern Way
Indianapolis,IN 46226 Longview,TX 75602 Sparks,NV 89431
1.800.MMG.HVAC(EST) 1.903.248.4800(CST) 1.800.884.4662(PST)
indycustomerseryice@micrometl.com longviewcustomerservice acmicrometl.com sparksscustomerservice@micrometl.com
Manufacturer reserves the right to discontinue,or change at any time,specifications,designs and prices without notice and without incurring obligations.
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Copyright MicroMetl Corporation 2015.All rights reserved. Form No.9100-18498-1P