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INSTALLATION AND
OPERATION MANUAL
Gas-Fired Pool
and Spa Heater
Atmospheric Models
268A and 408A
WARNING: If the information in the instructions is not followed exactly, a fire or explosion may result
A
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.
This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future
reference.
APPROVED
TM
UNCONTROLLED DOCUMENT IF PRINTED
A
S
M
E
HLW
Effective: 02-05-21
Replaces: 10-24-20
P/N 241452 Rev. 10
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Summary of Contents for Rheem Raypak 268A
- Page 1 APPROVED INSTALLATION AND OPERATION MANUAL Gas-Fired Pool and Spa Heater Atmospheric Models 268A and 408A 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.
- Page 2 APPROVED QUICK START GUIDE CLEARANCES WATER CHEMISTRY † Space required: See page 12. † Water chemistry requirements: See page 5. † Minimum and service clearances: See page 7 for clearances table. Note that local codes prevail. POWER † Supply voltage: See page 21 for acceptable input voltages.
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Page 3: Table Of Contents
APPROVED CONTENTS 1. WARNINGS ............. 4 5. ELECTRICAL WIRING ......... 20 Pay Attention to These Terms ......... 4 Electrical Power Draw ........... 20 Transformer Wiring ..........21 2. WATER CHEMISTRY ..........5 Automatic Chlorinators and Chemical Feeders..5 6. WIRING DIAGRAM ..........22 3. -
Page 4: Warnings
APPROVED 1. WARNINGS Pay Attention to These Terms Indicates the presence of immediate hazards which will cause severe personal injury, death or DANGER substantial property damage if ignored. Indicates the presence of hazards or unsafe practices which could cause severe personal injury, WARNING death or substantial property damage if ignored. -
Page 5: Water Chemistry
APPROVED 2. WATER CHEMISTRY CAUTION: Elevated water temperature be hazardous. The U.S. Consumer Product Safety Chemical imbalance can cause severe damage to your Commission has these guidelines: heater and associated equipment. Maintain your water Spa water temperatures should never exceed 104°F chemistry according to Table A. -
Page 6: Before Installation
APPROVED Be sure that you receive the number of packages indicated Chlorinators must feed downstream of the heater and on the Bill of Lading. have an anti-siphoning device to prevent chemical backup into the heater when the pump is shut off. Rating and certifications See "Plumbing Diagrams"... -
Page 7: Installation
APPROVED 4. INSTALLATION Installation Codes Installation must be in accordance with local codes, or, WARNING: This unit contains refractory ceramic in the absence of local codes, with the latest edition of fiber (RCF) insulation in the combustion chamber. RCF, the National Fuel Gas Code, ANSI Z223.1/NFPA54 and as manufactured, does not contain respirable crystalline National Electrical Code, ANSI/NFPA 70, and for Canada, silica. -
Page 8: Outdoor Heater Installation
APPROVED When installed according to the listed minimum clearances Clearances less than these may require removal of the from combustible construction, the pool heater can still be heater to service either the heat exchanger or the burner serviced without removing permanent construction around tray. - Page 9 APPROVED For installations in Florida and Texas, that must comply with the Florida or Texas Building Code, follow the directions shown in Figure 5 for the installation of hurricane tie-down brackets for all models. 4' (1.2 m) Minimum Indoor Heater Installation 4' (1.2 m) The heater is also design-certified for indoor installation Minimum...
- Page 10 APPROVED FLORIDA AND TEXAS BUILDING CODES WIND SPEED = 150 MPH, 3 SECOND GUST EXPOSURE = C Model in. (mm) 268A 23 (584) 408A 29 (737) 38" (965 mm) F10648-1 28" (711 mm) 2" x 6" x 1/8" Pallet Anchor Bracket (4 Total) (Kit# 011636) 3"...
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Page 11: Combustion And Ventilation Air
APPROVED Combustion and Ventilation Air Outdoor and Indoor Stacks The outdoor and indoor stacks are optional equipment and Indoor Units Only do not come standard with the heater. Refer to installation instructions inside box for instructions on how to install The heater must have both combustion and ventilation outdoor/indoor stack. - Page 12 APPROVED Specifications and Dimensions Amp Draw 120 VAC, 1Ph, 60Hz 240 VAC, 1Ph, 60Hz Indoor Drafthood 6-1/4" 4-1/4" (159 mm) (108 mm) 40" (1016 mm) 38” Stackless (965 mm) Outdoor Top 32-11/16" (830 mm) 26" Electrical Connection (660 mm) 13-1/4” (337 mm) connection 28"...
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Page 13: Vent Piping
APPROVED Flue materials must be certified to CATEGORY I or Vent Piping better. Type “B” double-wall or equivalent vent pipe is recommended. A draft of -0.01" to -0.08" WC must be WARNING: Indoor heaters require a drafthood that maintained. However single-wall metal vent pipe may be must be connected to a vent pipe and properly vented to used as specified in the latest edition of the National Flue the outside. -
Page 14: Gas Supply Connections
APPROVED Gas piping must have a sediment trap ahead of the 8' (2.4 m) heater gas controls, and a manual shutoff valve located OR LESS outside the heater jacket. All gas piping should be tested VENT CAP 2' MIN after installation in accordance with local codes. (0.6 m) CAUTION: The heater and its manual shutoff valve must be disconnected from the gas supply during any... -
Page 15: Flow Rate
APPROVED Gas Pressure Adjustment Locations Pipe Sizing for Gas Connection These capacities shown below based on using SCH Electronic Ignition Gas Valves 40 black iron pipe. For capacities using other materials, consult local code. GAS PRESSURE ADJUSTMENT Maximum Equivalent Pipe Length (ft) (m) Natural Gas 1000 BTU/FT 0.60 Specific Gravity @ 0.5 in WC Pressure Drop... -
Page 16: Protek Shield Assembly
APPROVED Pressure Drop ProTek Shield Assembly Flow (Ft. of Head) (m of Head) GPM (lpm) 268A 408A (Not available until end of Q3 2020) 20 (75) This heater is equipped with a ProTek Shield Assembly (located under the inlet connection on polymer headers 30 (113) and in the ProTek Shield Adapter assembly shipped loose 40 (151) -
Page 17: Unitherm Governor Operation
APPROVED Unitherm Governor Operation External Auxiliary Bypass Valve Where Required - An auxiliary bypass valve should be CAUTION: The patented Unitherm Governor is used when flow rates exceed 100 GPM (378 lpm). Usually a thermostatic mixing valve specifically designed to a high-performance pump size larger than two horsepower maintain constant heater internal temperature between will exceed this flow rate. -
Page 18: Pressure Relief Valve Installation
APPROVED The heater requires water flow and positive pressure to Pressure Relief Valve Installation fire and operate properly. It must therefore be installed To conform to local building codes, it is necessary to install downstream of the discharge side of the filter pump. a pressure relief valve. -
Page 19: Plumbing Diagrams
APPROVED Plumbing Diagrams Water Connection ISOLATION VALVE BALL VALVE PRESSURE RELIEF VALVE THIS DIAGRAM IS A RECOMMENDATION AND IS NOT INTENDED TO REPACE AN ENGINEERED PIPING SYSTEM BY A PROFESSIONAL ENGINEER PUMP Figure 22. Single Pool Heater Installation UNION CHECK VALVE THIS DIAGRAM IS A RECOMMENDATION AND IS NOT INTENDED TO REPACE AN ENGINEERED PIPING SYSTEM BY A PROFESSIONAL ENGINEER Figure 23. -
Page 20: Electrical Wiring
APPROVED 5. ELECTRICAL WIRING Electrical Power Draw NOTE: If it is necessary to replace any of the original CAUTION: Heater must be electrically grounded and wiring, use 105°C wire or its equivalent, and/or 150°C bonded. Bonding lug is provided loose with the heater. wire or its equivalent, like the original wiring. -
Page 21: Transformer Wiring
APPROVED Transformer Wiring Input power to the heater (120 or 240 VAC) can NOTE: be supplied from the load (pump) side of time clock or 120 VAC Wiring directly from the GFCI power source. It is preferred that full-time power be supplied to the heater from For 120 VAC input power to the unit, connect the black the GFCI power source, and that the heater be wire to the L1 or hot leg of the power supply. -
Page 22: Wiring Diagram
APPROVED 6. WIRING DIAGRAM UNCONTROLLED DOCUMENT IF PRINTED... -
Page 23: Controls
APPROVED 7. CONTROLS NOTE: Caution must be used to not damage controls or wiring. TEMP SENSOR HL1 - HIGH LIMIT CONTROL KNURLED HL2 - HIGH LIMIT BEZEL SCREW T&P GAUGE FLOW SWITCH PROTEK F10646-9 SHIELD ASSY Figure 29. Knurled Screw Location Control Adjustments ROLL-OUT The pool heater touchpad, located on the upper front panel... -
Page 24: Operation
APPROVED Press the DOWN button. The Supply Voltage screen Operation indicates the voltage supplied to the control board. Normal In the POOL or SPA modes, the actual water temperature readings range from 24 to 29 volts. is displayed along with the desired water temperature (SETPOINT). - Page 25 APPROVED Pool Max Temp – Pool Setpoint Maximum Resets board to factory default Adjustment settings. Refer to step one above access into the program screen. Press the MODE button until POOL MAX TEMP appears on the digital display. Using the UP and DOWN buttons will change the Maximum Temperature Setting to your Resets faults in the History File.
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Page 26: Status And Diagnostics
APPROVED The following conditions are displayed only while there is a Status and Diagnostics demand for heat present. The heaters are programmed to display a variety of status Display Condition and diagnostic messages, depending on the operating Water Sw Open Water pressure switch open. -
Page 27: Remote Control Wiring
APPROVED Remote Control Installation and Operation Activating the Remote To activate or deactivate the remote function: CAUTION: Before installing remote controls to the heaters, read the following: The heater is 1. Press and hold the UP and DOWN arrow buttons for remote-ready in most cases. - Page 28 APPROVED 2-Wire Remote Control (On-Off) This application assumes that only one heating function (pool or spa) is required. 1. Turn on power to the heater. 2. For a 2-Wire Remote Control from a remote without its own sensor, push the MODE button to the “POOL” or “SPA”...
- Page 29 APPROVED Time Clock/Fireman’s Switch Flame Roll-Out Safety Switch To operate the heater with a time clock, connect the timer Heaters are equipped with a thermal cutoff device to to the fireman’s switch connection in the heater’s wiring. prevent flame roll-out in the event the heat exchanger The time clock should be of the dual switch type and set to becomes blocked.
- Page 30 APPROVED 4. Orifices usually do not need to be replaced. To clean, Burner Tray Removal run either copper wire or wood toothpick through 1. Shut off main electrical power switch to heater. orifice. Do not enlarge hole. To remove orifice, use a socket wrench and remove from manifold.
- Page 31 APPROVED Tube Cleaning Procedure Establish a regular inspection schedule, the frequency depending on the local water conditions and the severity of service. Do not let the tubes clog up solidly. Clean out deposits over 1/16" (1.6 mm) in thickness. The heater may be cleaned from the return header side, without breaking pipe connections.
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Page 32: Operating Instructions
APPROVED 8. OPERATING Visual inspection INSTRUCTIONS With the heater on, remove the door and make a visual check of the pilot and burner. The flame should be blue with a well-defined pattern. Before Start-Up A yellow or “floating” flame indicates restricted air openings or incorrect orifice size. - Page 33 APPROVED OPERATING INSTRUCTIONS AND SHUTOFF PROCEDURES ALL MODELS (AUTOMATICALLY-LIGHTED PILOT) FOR YOUR SAFETY READ BEFORE LIGHTING This appliance is equipped with an ignition de- *If you cannot reach your gas supplier, call the vice which automatically lights the pilot. Do not fire department.
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Page 34: Maintenance And Care
APPROVED 9. MAINTENANCE AND CARE Cold Weather Operation WARNING: Check the heater for possible rodent Important Freeze Information nests after long periods of non-use. MODERATE CLIMATE: Heater operation can continue during short-term cold spells. When temperatures are To be followed one month after start-up and then semi- between 0°F (-18°C) and 32°F (0°C), flow (continuous annually. -
Page 35: Troubleshooting
APPROVED 10. TROUBLESHOOTING IMPORTANT NOTICE: These instructions are intended for the use of qualified personnel who are specifically trained and experienced 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. Persons not qualified shall not attempt to install this equipment nor attempt repairs according to these instructions. -
Page 36: Flow Chart
APPROVED Flow Chart WARNING: HIGH VOLTAGE For qualified technicians ONLY. NOTE: Some heaters may be equipped with an ignition module that shuts off pilot gas if pilot fails to light. To reset, interrupt power to heater. START TURN GAS SUPPLY OFF. NOTE: Before troubleshooting, familiarize yourself with the start-up and check-out TURN THERMOSTAT procedure. -
Page 37: Control Logic - Flow Chart
APPROVED Control Logic - Flow Chart Power On • Check On/Off switch (under lid on control panel) Is the water • Check for 120/240 volts to the transformer temperature displayed? (time clock, circuit breaker, wire connections) • Check for 24 volts to Circuit Board (P6 connector) “Remote”... -
Page 38: Replacement Parts
APPROVED 11. REPLACEMENT PARTS NOTE: To supply you with the correct part, it is important that you supply the heater model number, serial number and type of gas when applicable. Any part returned for replacement 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. -
Page 39: Illustrated Parts List
APPROVED 12. ILLUSTRATED PARTS LIST 12-S 6-HM 5-HM 7-HM 3-HM 2-HM 4-HM 17-HM 14-M 11-S 25-M 12-M 14-S 16-M 11-P 5-B 4-B 10-S UNCONTROLLED DOCUMENT IF PRINTED... - Page 40 APPROVED 19-M 19-M 20-M 21-M 20-HM 26-HM 20-M 27-HM 2-HM 6-HM 21-M 5-HM 28-HM 24-M 2-HM 7-HM INLET 3-HM OUTLET 24-M 4-HM 23-M 24-M 23-M 29-HM FOR UNITS WITH ASME BRONZE HEADERS FROM 12/2019 (PROTEK SHIELD NOT AVAILABLE UNTIL END OF Q3 2020) 14-HM 16-HM 13-HM...
- Page 41 APPROVED 30-HM INLET PROTEK SHIELD ADAPTER KIT HONEYWELL IID ATMOSPHERIC PILOT 19-M 20-M 27-HM 26-HM 22-M 24-M 21-M 24-M 23-M 24-M 23-M INLET 22-M OUTLET 29-HM PROTEK ADAPTER AND TEXAS CODE OPTION PRIOR TO 12/2019 UNCONTROLLED DOCUMENT IF PRINTED...
- Page 42 APPROVED CALL OUT DESCRIPTION 268A 408A BURNER TRAY Burner Tray w/Burners (sea level)* 013796F 013797F Burner Tray w/o Burners (sea level)* 013798F 013799F Burner Tray w/Gas Valve Nat IID 013800F 013801F Burner Tray w/Gas Valve Pro IID 013802F 013803F Burner Spacer/Hold Down Kit 013804F 013805F Burner...
- Page 43 CALL OUT DESCRIPTION 268A 408A APPROVED HEAT EXCHANGER 1-HM Heat Exchanger Assy.Cupronickel ASME Units manufactured from 12/2019 (Bronze) 017988F 017990F Units manufactured prior to 12/2019 (Bronze) 013808F 013809F 2-HM Inlet/Outlet Header ASME Complete Units manufactured from 12/2019 (Bronze) 018292F 018293F Units manufactured prior to 12/2019 (Bronze) 013810F 013810F...
- Page 44 APPROVED CALL OUT DESCRIPTION 268A 408A PILOT 002003F 002003F Pilot Nat & Pro IID Pilot Orifice Nat. IID .020 003903F 003903F Pilot Orifice Pro. IID .012 004308F 004308F Pilot Mounting Bracket IID 013791F 013791F Pilot Tube 004078F 004078F 10-P Hi Tension Wire IID with Pilot Electrode 11-P Pilot Shield 010351F...
- Page 45 APPROVED www.raypak.com Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468 UNCONTROLLED DOCUMENT IF PRINTED...
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