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Gas-Fired Pool 

and Spa Heater

Effective: 06-10-22

Replaces: 03-11-22

P/N 241452 Rev. 14

AS

ME

HLW

INSTALLATION AND  

OPERATION MANUAL

Atmospheric Models 

268A and 408A

This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future 

reference.

A

WARNING:

 If the information in the instructions is not followed exactly, a fire or explosion may result 

causing property damage, personal injury or death. 

- Do not store or use gasoline or other flammable vapors and liquids or other combustible materials in 

the vicinity of this or any other appliance. To do so may result in an explosion or fire.

- WHAT TO DO IF YOU SMELL GAS

 

•   Do not try to light any appliance.

  •   Do not touch any electrical switch; do not use any phone in your building.
  •   Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
  •   If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.

TM

THIS  MANUAL CAN BE VIEWED ELECTRONICALLY 

USING YOUR SMART DEVICE. SEE PAGE 46 FOR QR 

CODE.

Summary of Contents for 013731

Page 1: ...gasoline or other flammable vapors and liquids or other combustible materials in the vicinity of this or any other appliance To do so may result in an explosion or fire WHAT TO DO IF YOU SMELL GAS Do...

Page 2: ...2 WC Max 13 WC Sediment trap is required for all installations See page 14 WATER CHEMISTRY Water chemistry requirements See page 5 POWER Supply voltage See page 21 for acceptable input voltages VENTIN...

Page 3: ...xternal Auxiliary Bypass Valve page 17 Auxiliary Bypass Valve Adjustment page 17 Pressure Relief Valve Installation page 18 Heat Exchanger Reversal page 18 Plumbing Diagrams page 19 5 ELECTRICAL WIRIN...

Page 4: ...hich could cause severe personal injury death or substantial property damage if ignored ACAUTION Indicates the presence of hazards or unsafe practices which could cause minor personal injury or produc...

Page 5: ...0 ppm 2 WATER CHEMISTRY Chemical imbalance can cause severe damage to your heater and associated equipment Maintain your water chemistry according to Table A If the mineral content and dissolved solid...

Page 6: ...rs 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 when appropriate venti...

Page 7: ...fix the equipment nor attempt repairs according to these instructions AWARNING Improper installation adjustment alteration service or maintenance may damage the equipment creating a hazard resulting i...

Page 8: ...d g 0 024 sheet metal with ventilated air space over 0 024 sheet metal with ventilated air space Back 4 102 Right 4 102 Left 4 102 Vent 3 76 Indoor Top 24 610 Outdoor Top Unobstructed h 1 25 mm glass...

Page 9: ...eater to an inside corner wall for proper outdoor venting Pagoda Top Installation 1 Insert tabs into keyhole 4 places See Figure 4 detail A 2 Snap tabs into keyholes so as not to pull out See Figure 4...

Page 10: ...Ea Pallet Anchor Bracket Use hole closest to unit 4 total 1 1 4 x 2 1 4 S S Tapcon Bolt Washer Field Supplied Ea Pallet Anchor Bracket Use hole closest to unit 4 total 2 x 6 x 1 8 Pallet Anchor Bracke...

Page 11: ...lation air The minimum requirements are listed in the latest edition of the National Fuel Gas Code U S ANSI Z223 1 or Canada CAN CSA B149 and any local codes that may have jurisdiction The most common...

Page 12: ...eat Exchanger Shipping Weights lbs kg Heater Mode BTUH Input kwh A Cabinet Width in mm B Flue Dia in mm C Indoor Drafthood in mm D in mm J in mm Gas Conn in Water Conn in ASME Heater w Stackless Top I...

Page 13: ...ll be at least 5 1 5 m in vertical height above the drafthood outlet The vent cap location shall have a minimum clearance of 4 1 2 m horizontally from and in no case below unless a 4 1 2 m horizontal...

Page 14: ...use open flame Supply Pressure ACAUTION Do not use Teflon tape on gas line pipe thread Only sealant tape or a pipe compound rated for use with natural and propane gases is recommended Apply sparingly...

Page 15: ...vity 0 5 in WC Pressure Drop Propane Gas 2500 BTU FT3 1 53 Specific Gravity 0 5 in WC Pressure Drop Model 3 4 1 1 1 4 1 1 2 N P N P N P N P 268A 15 4 6 35 10 7 50 15 2 125 38 1 210 64 0 480 146 3 445...

Page 16: ...is shipped loose in the accessory carton for field installation This component provides protection to the heat exchanger against galvanic corrosion when properly bonded to the heat exchanger It should...

Page 17: ...ASSY BYPASS DISC SPRING YELLOW COLOR 268A GREEN COLOR 408A Figure 19 Internal Automatic Bypass Valve Bronze NOTE The Unitherm Governor and Bypass Valve Assy are not individually replaced components I...

Page 18: ...e and operate properly It must therefore be installed downstream of the discharge side of the filter pump See Figure 22 and Figure 23 A typical installation is plumbed as follows 1 The inlet side of t...

Page 19: ...IPING SYSTEM BY A PROFESSIONAL ENGINEER Figure 22 Single Pool Heater Installation THIS DIAGRAM IS A RECOMMENDATION AND IS NOT INTENDED TO REPACE AN ENGINEERED PIPING SYSTEM BY A PROFESSIONAL ENGINEER...

Page 20: ...er 9 Re install P6 connector ground wires SPG transformer junction box front door and plug right side with the left side s grommet plug NOTE 7 8 diameter holes not utilized on jacket and control box c...

Page 21: ...2 RED RED BLACK HOT HOT BLACK GREEN GREEN WHITE SUPPLY SIDE Figure 26 240 VAC Wire Connection Heater must be electrically grounded and bonded in accordance with local codes or in the absence of local...

Page 22: ...22 6 WIRING DIAGRAM...

Page 23: ...l heater touch pad located on the upper front panel of the heater allows the user to select either POOL or SPA operation and to adjust the setpoint temperature The LCD display window indicates the mod...

Page 24: ...Strength Indicator Press the DOWN button The Supply Voltage screen indicates the voltage supplied to the control board Normal readings range from 24 to 29 volts Figure 34 Supply Voltage Indicator Pres...

Page 25: ...red value The control can be set for a maximum of 107 F 42 C Pool Max Temp Pool Setpoint Maximum Adjustment Refer to step one above access into the program screen Press the MODE button until POOL MAX...

Page 26: ...Faults The following conditions are displayed only while there is a demand for heat present Display Condition Water Sw Open Water pressure switch open Vent Field Sw 1 Vent spill switch field switch 1...

Page 27: ...igure 39 Remote Control Menu Remote Operation Activating the Remote To activate or deactivate the remote function 1 Press and hold the UP and DOWN arrow buttons for 3 to 5 seconds The second line of t...

Page 28: ...nstall the 7 Pin Remote Interface Harness to the P8 connector and turn power ON to the heater See Figure 422 For activation of the remote control see section on page 27 3 Wire Remote Control Using Thr...

Page 29: ...i e orange to orange and orange black to orange black No further adjustment is needed Figure 44 Water Flow Switch Assembly NOTE The sheet metal cover should be in place at all times to protect the fl...

Page 30: ...ean with a wire brush 4 Orifices usually do not need to be replaced To clean run either copper wire or wood toothpick through orifice Do not enlarge hole To remove orifice use a socket wrench and remo...

Page 31: ...om heat exchanger stud 5 Remove heat exchanger from the heater and wash with a garden hose making sure soot is removed from spaces between fins 6 Reverse above procedure to reinstall NOTE In extreme c...

Page 32: ...and Off See Section 7 for additional details about the use of the controls in the Control Adjustments subsection After Start Up Feel the inlet and outlet pipes Outlet pipe should be only slightly warm...

Page 33: ...ead the safety information above 2 Set the thermostat to the lowest setting 3 Turn off all electrical power to the appliance 4 This appliance is equipped with an ignition device which automatically li...

Page 34: ...er is dirty look to see if the filter pressure is higher than usual 4 The pump may have lost its prime and be running dry Check the pressure on the filter If there is no pressure then you are not movi...

Page 35: ...ntinuously Dirty filter Clean or replace filter Low water level in pool Raise water level External bypass setting out of adjustment Adjust bypass Pressure switch out of adjustment Adjust pressure swit...

Page 36: ...eather Filter not running long enough Reset time clock Dirty filter Clean filter Gas line or meter undersized Refer to installation instructions Leaking at heat exchanger Overacid Replace heat exchang...

Page 37: ...PC board and pilot operator on gas control Check for 24 VAC across PV MV PV terminals on PC board If voltage is okay replace gas control if not replace PC board NOTE If PC board goes into lockout res...

Page 38: ...15 21 27 32 38 41 Resistance k 261 1 199 0 153 1 118 8 93 0 73 3 58 3 51 0 If okay replace Circuit Board Sensor Failure Inspect thermistor wires and connector at Terminal P1 Check resistance value of...

Page 39: ...ent under standard company warranties must be properly tagged with a return parts tag completely filled in with the heater serial number model number etc and shipped to the Company freight prepaid If...

Page 40: ...ARTS LIST 12 M 8 S 3 S 8 M 7 M 2 J 1 G 10 S 1 B 5 B 4 B 3 B 1 M 2 B 16 M 1 J 7 S 1 R 6 M 4 C 3 C 11 S 17 HM 4 S 1 V 4 V 2 V 3 V 1 S 12 S 2 S 5 HM 2 HM 3 R 6 HM 9 M 3 HM 14 M 2 R 5 S 6 S 4 HM 14 S 4 S...

Page 41: ...20 M 21 M 19 M 2 HM FOR UNITS PRIOR TO 12 2019 16 HM 15 HM 12 HM 9 HM 10 HM 2 C 6 M 11 HM 8 HM 3 C 6 C 5 HM 17 HM 14 HM 13 HM 2 HM 4 HM 7 HM 3 HM 6 HM 2 S 9 S 4 S 18 HM 24 M 24 M 6 C 19 M 23 M OUTLET...

Page 42: ...9 P HONEYWELL IID ATMOSPHERIC PILOT PROTEK SHIELD ADAPTER KIT PROTEK ADAPTER AND TEXAS CODE OPTION PRIOR TO 12 2019 19 M 20 M 22 M 24 M 23 M 21 M 22 M OUTLET INLET 24 M 29 HM 27 HM 26 HM 24 M 23 M IN...

Page 43: ...nt Units manufactured from 12 2019 006725F 006725F 2 C AGS 135 F Auto Gas Shutoff Red Epoxy Units manufactured prior to 12 2019 600892B 600892B 3 C High Limit 140 F Black Epoxy Units manufactured prio...

Page 44: ...ain Plug Cover 005264F 005264F 19 HM Adapter CPVC 2 005393F 005393F 20 HM Sensor Adapter Digital Electronic 006714F 006714F 26 HM Adapter ProTek Shield Includes 27 HM from end of Q3 2020 018006F 01800...

Page 45: ...d prior to 12 2019 010312F 010312F 5 S Jacket Side Panel Right 010376F 010376F 6 S Jacket Side Panel Left 010377F 010377F 7 S Jacket Rear Panel 2 Pcs 010373F 010375F 8 S Poolstat Cover Lock 009505 009...

Page 46: ...sponding manuals on your smart device This QR Code will take you to the most current version of the manual Previous versions of manuals can be found in the document library at Raypak com P N 241452 Pr...

Page 47: ...47 Raypak Inc 2151 Eastman Avenue Oxnard CA 93030 805 278 5300 www raypak com NOTES...

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