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Report (13) PART TWO INSTALLATION AND SERVICE INSTRUCTIONS The manufacturer recommends that this manual be reviewed thoroughly before installing your pool/spa heater. If there are any questions that this manual does not answer, please contact the factory or your local represen- tative. On receipt of your equipment it is suggested that you visually check for external damage to the carton. If the carton is damaged, a note should be made on the Bill of Lading when signing for the equipment. Remove the heater from the carton. If it is damaged, report the damage to the carrier immediately. Save the carton. These items are shipped inside a box in the carton with the heater: STANDARD UNIT(POLYMER HEADERS) ASME UNIT (CAST IRON HEADERS) 1. "Pagoda"top 1. "Pagoda"top 2. 2" CPVC union with "0" rings (2) 2. In/Out flanges (2) 3. Plastic pipe finish flange for gas line 3. 1-1/2"flange gaskets (2) 4. Bonding lug with mounting screw 4. 2"flange gaskets (2) (AFT models only) 5. Flange bolts (4) 6. Pressure relief valve 7. 2" CPVC adapters (2) 8. Plastic pipe finish flange for gas line. 9. Bonding lug with mounting screw. (AFT models only) Be sure that you receive the number of packages indicated on the Bill of Lading. When ordering parts, you must specify the model and serial numbers of the heater. See below for location of serial number. When ordering under warranty conditions, you must also specify date of installation. The Model & Serial No. can also be found inside the bezel above the display Model: C-R206A-MN-C ASME e CAST IRONModel & Serial No. ° • NAT M�/ Located on Rating Fuel ° ` Plate m �)° Item Number. IMNA�rd • ��/1 e • s 009244 0 • ` • �;r• 111111111111111111111111111 (Alternate Location) 1�s 040904155 • H' Note: - ""'" �• LABEL ON CARTON 11$� ,411 ) Serial No. �L ' 10 COLD WEATHER OPERATION WINTERIZING THE POOL&SPA HEATER IMPORTANT FREEZE INFORMATION Heaters installed outdoors in freezing climate areas may be shut down for the winter. Observe the follow- MODERATE CLIMATE: Heater operation can contin- ing procedure for winterizing the heater: ue during short-term cold spells. When temperatures are between 0° and 32°F, flow (continuous pump 1. Turn off gas valve, manual gas valve, and electri- operation) must be maintained. cal supply to the heater. 2. Open drain plug located on the inlet/outlet header, CAUTION: Do not use the heater to maintain water (under water pipes). Remove the heat exchanger temperatures just above freezing or for freeze protec- inspection panel on the side opposite water piping tion. When heater is used during freezing weather, to gain access to the drain plug on the return head- care must be taken to avoid freeze-ups. Continuous er. Open drain plug on return header. pump operation is a must. Additional protection may be required. The heater is not warranted against freeze-ups. Return Header y COLD CLIMATE: Prolonged operation with water temperatures below 50°F is not recommended. When starting the heater with water temperatures below 50°F, operate the heater continuously until higher temperatures are reached. Operating the r Drain Plug heater for prolonged periods with pool water below to 50°F can seriously damage the heater,and is not coy- ered by the warranty. 3. For ASME Heaters only:Disconnect compression For cold climate areas, please follow the winterizing fittings from the pressure switch and return header procedures listed. that connects to the 1/4"copper tube and allow the tube to drain. 9 These heaters are design-certified and tested under the latest requirements of the ANSI Z21.56 / CSA 4.7 Standard for Gas-Fired Pool Heaters. All heaters can be used either indoor or outdoors. The appropriate top designated for each type of use is required. If necessary,the top can be changed at a later date to change from outdoor to indoor or vice versa. Millivolt heaters contain a self-generating electrical system operating between .25 and .75 VAC. Ambient Temperature Rating of Heater Components Millivolt Heater with Honeywell Gas Valve +32°F to+175°F Millivolt Heater with Robertshaw Gas Valve 0°F to +175°F Electronic Ignition Heater* -32°F to + 175°F *Requires 120 or 240VAC Power Supply Y Atmospheric heaters: Rated inputs are suitable for up to 2,000 feet elevation. For elevations above 2000 feet, reduce input 4% for each 1,000 feet above sea level, as high elevation reduces combustion performance. Lo NOx heaters: Rated inputs are suitable for up to 5,000 feet elevation. For elevations above 5000 feet, consult the factory. g 1-4 g � �S � � �n '4.1,1 . _ _ .fid Fes � '' '✓Evc..x. 6'ui '..., �a'z�: � i , .., =K_ CALIFORNIA PROPOSITION 65 WARNING:This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. WARNING: This unit contains refractory ceramic fiber (RCF) insulation in the combustion chamber. RCF, as manufactured, does not contain respirable crystalline silica. However, following sustained exposure to very high temperatures (>2192F), the RCF can transform into crystalline silica (cristabolite). The International Agency for Research on Cancer (IARC) has classified the inhalation of crystalline silica (cristabolite) as car- cinogenic to humans. When removing the burners or heat exchangers, take precautions to avoid creating airborne dust and avoid inhaling airborne fibers. When cleaning spills, use wet sweeping or High Efficiency Particulate Air (NEPA) filtered vacuum to minimize airborne dust. Use feasible engineering controls such as local exhaust ventilation or dust collecting systems to minimize airborne dust. Wear appropriate personal protective equipment including gloves, safety glasses with side shields, and appropriate NIOSH certified respiratory protection, to avoid inhalation of airborne dust and airborne fiber particles. IMPORTANT NOTICE These instructions are intended only for the use by qualified personnel, specifically trained and experi- enced in the installation of this type of heating equipment and related system components. Installation and service personnel may be required by some states to be licensed. If your state is such, be sure your con- tractor bears the appropriate license. Persons not qualified shall not attempt to fix this equipment nor attempt repairs according to these instructions. WARNING: Improper installation, adjustment, alteration, service or maintenance may damage the equip- ment, create a hazard resulting in asphyxiation, explosion or fire, and will void the warranty. CODE REQUIREMENTS NOTE: The heater should not be located in an area where possible water leakage will result in damage to the area adjacent to the heater or to the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, with adequate drainage, be installed under the heater. The pan must not restrict combus- tion air flow. Installation must be in accordance with local codes, or, in the absence of local codes, with the latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA54 and National Electrical Code, ANSI/NFPA 70, and for Canada,the latest edition of CAN/CSA-B149 Installation Codes,and Canadian Electrical Code,CSA C22.1 Part 1 and Part 2. 11 CLEARANCES ALL HEATERS For clearances from combustible surfaces, see the When installed according to the listed minimum clear- chart below. ances from combustible construction, the pool heater can still be serviced without removing permanent 3 construction around the heater. INDOOR INSTALLATIONS: However for ease of servicing,we recommend a clear- Top*- 30"(Drafthood) Back-6" ance of at least 24"in the front, and at least 18"on the Front-Alcove (Open) Right Side- 12" (Water Side) water connection side. This will enable the heater to Vent- 6" Left Side 6" be serviced in its installed location, that is, without Floor**-0" (Opposite Water Side) movement or removal of the heater. OUTDOOR INSTALLATION: Clearances less than these(6"minimum), may require Top*- Unobstructed (Outdoor Stack) removal of the heater to service either the heat Top***-36" (Stackless Top) exchanger or the burner tray. In either case, the Floor-0" Right Side- 12" (Water Side) heater must be installed in a manner that will enable Back-6" Left Side-6" the heater to be serviced without removing any struc- (Opposite Water Side) ture around the heater. *Clearance from top of vent terminal. FLOORING: This heater can be installed on com- **Do not install on carpeting. bustible flooring. ***Clearance from top of heater. OUTDOOR HEATER INSTALLATION These heaters are design-certified for outdoor installation,when equipped with the approved tops designated for outdoor use. WARNING: The heater shall not be located in an area where water sprinklers, or other devices, may cause water to spray through the cabinet louvers and into the heater. This could cause internal rusting or damage electrical components, and void the warranty. WARNING: Do not install within 3 feet of a heat pump or an outdoor condensing unit. Strong air intake from this type of equipment can disturb the combustion process and cause damage or personal injury. HEATER WITH OUTDOOR STACKLESS TOP Pagoda Top Installation Pagoda Top I I 1. Insert tabs into keyhole (4 places). O Pagoda Top o100 (Shipped inside box in heater carton) 2. Snap tabs into keyholes so as not to pull out. 12 Heaters must not be installed under an overhang of less than three 3 ft from the top of the heater. Three sides must be open in the area under the overhang. Roof water drainage must be diverted away from the heaters installed under overhangs with the use of gutters. For U.S. installations, the point from where the flue products exit the heater must be a minimum of 4 ft below, 4 ft horizontally from, or 1 ft above any door, window or gravity inlet into any building. The top surface of the heater shall be at least 3 ft above any forced air inlet, or intake ducts located within 10 ft horizontally. For installations in Canada, pool heaters shall not be installed with the top of the vent assembly within 10 ft below, or to either side, of any opening into the building. Refer to the latest revisions of CAN/CSA-B149. 4 ft % / Minimum /� 4 ft Minimum 4ft Minimum 3ft Minimum 3 T 1ft 10 ft _� Minimum Minimum i Forced Air Inlet For installations in Florida and Texas, that must comply with the Florida or Texas Building Code, follow the directions on page 14 for the installation of hurricane tie-down brackets for all models. 13 FLORIDA AND TEXAS BUILDING CODES WIND SPEED = 150 MPH,3 SECOND GUST EXPOSURE=C 206/266/336/406 Atmospheric MODEL# B 206 20" i B J 266 23" \` 336 26" \� ,, ' 406 29" 40„ 8 .•�• 14/0 . 0 • 00 %1 .-----,.. 28" "c x Pallet Anchor r Bracrac ket(4 Total)(Kit#011636) jmil���—.,_,__n _ 3"Min. Pad by others other woolimancloweg.NM h:MINIM . ., E -viiim • ti • •• • 1/4"x 1-3/4"S.S.Tapcon Bolt&Washer(Field Supplied) • • •. r •M NOTE:Use hole closest to unit with washer overlapping edge of unit. Min.Edge Distance .. of • `-1— 6" o • c. • Min.Edge Distance \ . C=1 ® HOT ] . • • S L 6"-- — r I i u=n��� a=u= •• • • —1-11-11-11—.--11--11-11-11—:1—n—n—it—ii=:1=11= • 'w‘gir .a • -:111=11-=11=11=11=11=11=li=11=11=11=11=11=1117:1- _ II=11 t n1�II =it ,II 1 II =11=.1=11= (1)-1/4"x 1-3/4"S.S.Tapcon Bolt&Washer(Field Supplied) (1)-1/4"x 1-3/4"S.S.Tapcon Bolt&Washer(Field Supplied) Ea. Pallet Anchor Bracket Ea Pallet Anchor Bracket Use hole closest to unit(4 total) Use hole closest to unit(4 total) 3"Min.Conc. Pad by others 14 INDOOR HEATER INSTALLATION,, The heater is also design-certified for indoor installation when equipped with the approved drafthood. For Canada, indoor installation is restricted to an enclosure that is not occupied and does not directly commu- nicate with an occupied area. Refer to the latest edition of CAN/CSA-B149 for specific requirements. Locate heater as close as is practical to a chimney or gas vent. Heater must always be vented to the outside. See Vent Piping section (pg. 18-19)for details. Minimum allowable space is shown on the nameplate. WARNING: Indoor heaters require a drafthood that must be connected to a vent pipe and properly vented to the outside. Failure to follow this procedure can cause fire or fatal carbon monoxide poisoning. OUTDOOR STACK I:INDOOR STACK NOTE:The outdoor and indoor stacks are optional equipment and do not come standard with the heater. OUTDOOR STACK KIT INCLUDES: INDOOR STACK KIT INCLUDES: (1) Drafthood, painted (1) Drafthood, unpainted (1)Adapter plate (1)Adapter plate (3) Mounting brackets (clips) (3) Mounting brackets (clips) (1)Top panel cover (3) Screws (2) 1-foot sections of metal tape (1) Instructions ;. (3) Screws Clips (1) Instructions kw,,,,,,w_-1—" . `''''' Clips Ail v"4 r 11,411 1,44 ,v 1111111111161. OUTDOOR INDOOR STACK **REFER TO INSTALLATION INSTRUCTIONS STACK INSIDE BOX FOR INSTRUCTIONS ON HOW TO Model Part No. Part No. INSTALL OUTDOOR/INDOOR STACK. 206A/207A 009834 009838 266A/267A 009835 009839 336A/337A 009836 009840 406A/407A 009837 009841 15 SPECIFICATIONS AND DIMENSIONS ATMOSPHERIC UNITS Amp Draw r_B- 120 Volt 240 Volt iii AFT 4 2 MI FLUE —10'� D * 4-3/8" (6 s 8"ASME (3-3/8"ASME) I • INDOOR I�I p DRAFTHOOD • 0 • • =w . • •• • • 32-11/16' 40' 38' ELECTRICAL ��) STACKLESS CONNECTION OUTDOOR TOP 26-5/8' (28-5/8'ASME) • 13-1/4' GAS CONNECTION • —_- - I Li - - Z A 28" Residential,Copper Heat Exchanger Shipping Weight(lbs) Standard ASME BTUH (A) Heater Heater Input Cabinet (B)Flue(C) Indoor Gas Water w/Stackless w/Stackless Indoor Heater Model (000) Width Dia. Drafthood (D) (J)Min. Conn. Conn. Top Top Drafthood P-R206A-EN-C 199.5 20" 6" 61-5/8" 10.0" 11-3/4" 3/4" 2" 187 206 14 P-R266A-EN-C 266.0 23" 7" 62" 11.5" 11" 3/4" 2" 210 229 16 P-R366A-EN-C 332.5 26" 8" 63" 13.0" 10-5/8" 3/4" 2" 230 249 19 P-R406A-EN-C 399.0 29" 9" 64-9/16" 14.5" 12-1/8" 3/4" 2" 249 268 21 Residential,Cupro Nickel Heat Exchanger Shipping Weight(lbs) Standard ASME BTUH (A) Heater Heater Input Cabinet (B)Flue(C) Indoor Gas Water w/Stackless w/Stackless Indoor Heater Model (000) Width Dia. Drafthood (D) (J)Min. Conn. Conn. Top Top Drafthood P-R206A-EN-X 180.0 20" 6" 61-5/8" 10.0" 11-3/4" 3/4" 2" 187 206 14 P-R266A-EN-X 240.0 23" 7" 62" 11.5" 11" 3/4" 2" 210 229 16 P-R366A-EN-X 300.0 26" 8" 63" 13.0" 10-5/8" 3/4" 2" 230 249 19 P-R406A-EN-X 360.0 29" 9" 649/16" 14.5" 12-1/8" 3/4" 2" 249 268 21 Commercial,ASME Copper or Cupro Nickel Shipping Weight(lbs) Standard ASME BTUH (A) Heater Heater Input Cabinet (B)Flue(C) Indoor Gas Water w/Stackless w/Stackless Indoor Heater Model (000) Width Dia. Drafthood (D) (J)Min. Conn. Conn. Top Top Drafthood C-R206A-EN-(C or X) 199.5 20" 6" 61-5/8" 10.0" 11-3/4" 3/4" 2" 187 206 14 C-R266A-EN-(C or X) 266.0 23" 7" 62" 11.5" 11" 3/4" 2" 210 229 16 C-R366A-EN-(C orX) 332.5 26" 8" 63" 13.0" 10-5/8" 3/4" 2" 230 249 19 C-R406A-EN-(C or X) 399.0 29" 9" 64-9/16" 14.5" 12-1/8" 3/4" 2" 249 268 21 Designation for an AFT heater using propane gas is"EP";an AFT heater using natural gas is"EN". Designation for a Millivolt heater using propane gas is"MP";a Millivolt heater using natural gas is"MN". Prefix"C"is for cast iron(ASME)headers;"P"is for plastic(polymer)headers. Suffix"X"is for cupro-nickel tubing;"C"is for copper tubing. EXAMPLE:P-R406A-EN-X=Plastic headers,406 model size,AFT,natural gas,cupro-nickel. Reduce input 4%for each 1000 ft above sea level when installed above 2000 ft elevation. For Canada,no de-rating is required for elevations up to 4500 ft Plastic(polymer)headers cannot be used for ASME installations. 'Note:For outdoor stack,use J dimension in the table above for appropriate size PLUS six(6)inches 16 CQMOD sT'ION AND VENTILATION AR ndoor Unit 01141 The heater must have both combustion and ventilation air. Minimum requirements for net free air supply open- ings are one opening that is 12 inches from the ceiling for ventilation,and one opening that is 12 inches from the floor for combustion air as outlined in the latest edition of the National Fuel Gas Code, ANSI Z223.1(Canada- ' CAN/CSA-B149) and any local codes that may have jurisdiction. A. All Air From Inside The Building: Each opening shall have a minimum net free area as noted: Model Square Inches Model Square Inches 206/207 200 336/337 333 266/267 266 406/407 399 B. All Air From Outdoors: When air is supplied directly from outside the building, each opening shall have a minimum net free area as noted: Model Unrestricted Opening(sq. in.) Typical Screened Q Typical Screened and Louvered Opening(sq. in.) Louvered Opening(sq. in.) 206/207 50 75 100 266/267 67 101 134 336/337 84 126 168 406/407 100 150 200 CAUTION: Combustion air must not be contaminated by corrosive chemical fumes which can damage the heater and void the warranty. VENT-PIPING WARNING: Indoor heaters require a drafthood that must be connected to a vent pipe and properly vented to the outside. Failure to follow this procedure can cause fire or fatal carbon monoxide poisoning. Vent piping the same size as the drafthood outlet is recommended, however, when the total vent height is at least 10 ft (drafthood relief opening to vent terminal),the vent pipe size may be reduced as specified in Chapter 10 of the National Fuel Gas Code, ANSI Z223.1 (Canada- CAN/CSA-B149).As much as possible, avoid long horizontal runs of vent pipe and too many elbows. If installation requires horizontal runs,the vent pipe must have a minimum of 1/4 in. per ft rise and should be supported at not more than five foot intervals. Plumbers tape, criss-crossed, will serve to space both horizontal and vertical piping. Gas vents supported only by the flashing and extending above the roof more than five feet should be securely guyed or braced to withstand snow and wind loads. We recommend use of insulated vent pipe spacers through the roofs and walls.Another option for installation that requires horizontal runs is using the D-2 power vent kit option. Power Vent Kit' The D-2 Power Vent oper- ates with a positve vent stat- Model 120 VAC 240 VAC is pressure and with a vent Part No. Part No. gas temperature that pre- vents excessive condensate 206/207 010744 009832 production in the vent, and as such,is a CATEGORY III 266/267 010744 009832 appliance. 1 336/337 010745 009833 406/407 010745 009833 Optional Raypak D-2 Power Power Vent For more information consult the D-2 Power Vent manual, (Catalog No.6000.57.1). The power vent assembly is a fan-assisted combustion system designed for application to models 206-407.The unit, when installed as directed, is capable of operating in applications such as through-the-wall venting and reduced horizontal and vertical vent pipe sizes in new and current installations.The unit is factory-wired for 240 VAC, with capability of rewiring for 120 VAC. 18 SPECIFICATIONS AND DIMENSIONS LO NOx UNITS Amp Draw B 1 120 Volt 240 Volt 6 3 c. FLUE 10' _.1 8-7/8" C I] 4-3/8" (6-5/8"ASME) INDOOR I J* (3-3/8"ASME) - DRAFTHOOD I MM o I . •°o ` '• . ( ) . ©_# , 34" 26-1/2" •► • STACKLESS 31-13/16" ELECTRICAL OUTDOOR CONNECTION �•�y ® TOP 20-1/2" . . (1=== T- — — (22-1/2"ASME) • 7-3/4" GAS CONNECTION 1 i 1 L ..... 1 I L - - A J IIIF 28" Shipping Weights(lbs) Standard ASME BTUH (A) (B) (C) (D) (J) Heater Heater indoor Heater Input Cabinet Flue Indoor Min. Gas Water w/Stackless w/Stackless Draft- Model (000) Width Dia. Drafthood Conn. Conn. Top Top hood R207A 199.5 20" 6" 55-5/8" 10.0" 11-3/4" 3/4" 2" 174 193 14 R267A 266.0 23" 7" 56" 11.5" 11" 3/4" 2" 197 216 16 R337A 332.5 26" 8" 57" 13.0" 10-5/8" 3/4" 2" 219 238 19 R407A 399.0 29" 9" 58-1/2" 14.5" 12-1/8" 3/4" 2" 237 256 21 Designation for an AFT heater using natural gas is"EN". Prefix"C"is for cast iron (ASME) headers;"P"is for plastic(polymer) headers. Suffix"C"is for copper tubing. EXAMPLE: P-R407A-EN-C=Plastic headers, 407 model size,AFT, natural gas,copper. For altitudes above 5,000 ft., consult the factory. For Canada, no de-rating is required for elevations up to 4500 ft. Plastic(polymer) headers cannot be used for ASME installations. *Note: For outdoor stack, use J dimension in the table above for appropriate size PLUS six(6) inches. 17 For protection against rain or blockage by snow, the GAS SUPPLY CONNECTIONS, vent pipe must terminate with a vent cap which com- plies with the local codes or, in the absence of such codes, to the latest edition of the National Fuel Gas _ — — Code, ANSI Z223.1 (Canada- CAWCSA-B149). HEATER JACKET I GAS INLET I GAS V The discharge opening must be a minimum of 2 ft ver- I I tically from the roof surface and at least 2 ft higher than MANUAL SHU VA any part of the building within 10 ft. Vent stack shall be r®r at least 5 ft in vertical height above the drafthood out- L I let.The vent cap location shall have a minimum clear- I ance of 4 ft horizontally from, and in no case below, ■■. unless a 4 ft horizontal distance is maintained, from electric meters, gas meters, regulators and relief I �•� I - equipment. I , MIN TYPICAL UNION The weight of the vent stack or chimney must not rest on heater drafthood. Support must be provided in I I compliance with applicable codes. The heater top and I I drafthood must be readily removable for maintenance SEDIMENT TRAP and inspection. Vent pipe should be adequately sup- FIELD SUPPLIED _ _ ported to maintain proper clearances from combustible construction. Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valve locat- Type"B"double-wall or equivalent vent pipe is recom- ed outside the heater jacket. All gas piping should be mended. However single-wall metal vent pipe may be tested after installation in accordance with local codes. used as specified in the latest edition of the National Flue Gas Code ANSI Z223.1 (Canada - CAWCSA- CAUTION: The heater and its manual shut-off valve B149). must be disconnected from the gas supply during any pressure testing of that system at test pressures in excess of 1/2 psi(3.45 kPa). Dissipate test pressure in the gas supply line before reconnecting the heater io'OR LESS-► 1--/_VENT CAP and its manual shut off valve to gas supply line. FAIL- URE TO FOLLOW THIS PROCEDURE MAY DAM- } EN AGE THE GAS VALVE. OVER PRESSURIZED GAS 2'MIN t VALVES ARE NOT COVERED BY WARRANTY The 2'MIN heater and its gas connections shall be leak tested j/\\\ before placing the appliance in operation. Use soapy water for leak test. DO NOT use open flame. 5'MIN VENT PIPE -+ NOTE: Do not use Teflon tape on gas line pipe thread. A pipe compound rated for use with natural and propane gases is recommended. Apply sparingly only on male pipe ends, leaving the two end threads bare. DRAFT HOOD-. ; SUPPLY PRESSURES A minimum of 6 in.WC for atmospheric units(5 in.WC for Lo NOx units), and a maximum of 14 in. WC upstream pressure under load and no-load conditions must be provided for natural gas. A minimum of 12 in. HEATER-► WC and a maximum of 14 in. WC are required for propane gas under load and no-load conditions. NOTE: With venting application of two or more heaters, contact the factory. 19 GAS;PRESSURE REGULATOR ELECTRONIC IGNITION GAS VALVES-CONTINUED The gas pressure regulator is preset at 4.0 in. WC for natural gas (3.1 in. WC for Lo NOx), and 10.5 in. WC. - M - for propane gas. The pressure at the gas valve,taken .T with a manometer, should be about 4.0 in. WC natural , �� _� gas (3.1 in. WCx and 10.5 in. WC propane forLoNO � w- gas. If an adjustment is needed, remove seal and turn we'' i 4, W 14 adjustment screw clockwise to increase pres- ," * sure or counter-clockwise to ecrease pressure. Gas Pressure NOTE: Lo NOx gas valves are non-adjustable;set- Adjustment tings are fixed by the manufacturer Robertshaw 7200 Robertshaw 7000 BDER (lnvensys/Robertshaw). (Heater Model 206) (Heater Models 266-336) MANUAL j�/<� t� ' f SHUT-OFF A , ti VALVE = ro Ike:. 0 .%,.4111ii _*.,„'-- 44E Gas Pressure itv Adjustment a v it m I ) ,fT �U�) ' a. �' r Robertshaw 7000 DERHC 1 .Otoo/f (Heater Model 406) UNION 41.4, i� l l' �!` " Non-Adjustable A' , ('- , ° Gas Valve � ti. ,,-ifs T{. MANOMETER GAS PRESSURE TEST AT GAS VALVE Robertshaw 7000 BDERF GAS PRESSURE ADJUSTMENT LOCATIONS (Heater Models 207-407) MILLIVOLT GAS VALVES PIPE SIZING FOR GAS CONNECTIONS Maximum Equivalent Pipe „,�, :., Gas Pressure qLengthft I 41' Adjustment Natural Gas 1000 BTU/FT'0.60 #,- l 1 1 Specific Gravity @ 0.5 in.WC Pressure Drop 'twit 41;316 Propane Gas 2500 BTU/FT3 1.53 +4; Specific Gravity @ 0.5 in.WC Pressure Drop Robertshaw 7000 3/4" 1" 1-1/4" 1-1/2" (Heater Models 206-406) Model N P N P N P NP ELECTRONIC IGNITION GAS VALVES 206/207 25 60 90 215 360 Gas Pressure266/267 15 35 50 125 210 480 445 , j Adjustment 336/337 10 20 30 80 140 320 290 Honeywell VR8304 , ' ,, 406/407 15 20 55 95 225 215 480 (Heater Models 206- ;.4 yN 'A 3/4"gas line can be used for up to 5 ft maximum length from the 406 and 207-407) gas valve in addition to the sediment trap. 20