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INSTALLATION AND
OPERATION MANUAL
Gas-Fired Pool &
Spa Heater
Atmospheric Models 268 & 408
WARNING: If these instructions are 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 in the vicinity of
this or any other appliance.
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.
Catalog No. 6000.64A
TM
Effective: 11-15-17
Replaces: 08-18-11
P/N 241452 Rev. 2
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Related Manuals for Rheem Raypak PROFESSIONAL Atmospheric 268
Summary of Contents for Rheem Raypak PROFESSIONAL Atmospheric 268
- Page 1 INSTALLATION AND OPERATION MANUAL Gas-Fired Pool & Spa Heater Atmospheric Models 268 & 408 WARNING: If these instructions are 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 in the vicinity of this or any other appliance.
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Page 2: Water Chemistry
WATER CHEMISTRY (Corrosive water voids all warranties) For your health and the protection of your pool equipment, it is essential that your water be chemically balanced. The following levels must be used as a guide for bal- anced water. Other Pool & Spa Recommended Level(s) Fiberglass Pools Fiberglass Spas Types... -
Page 3: Table Of Contents
CONTENTS PART ONE External Auxiliary Bypass Valve OWNER’S OPERATING INSTRUCTIONS Auxiliary Bypass Valve Adjustment Pressure Relief Valve Installation SECTION 1 Plumbing—Water Connections START-UP PROCEDURES Electrical Wiring Before Start-Up Transformer Wiring Operating Instruction & Shut-Off Procedures - Wiring Diagram SECTION 4 Automatically Lighted Pilots IID SERVICING INSTRUCTIONS After Start-Up... -
Page 4: Part One
PART ONE OWNER’S OPERATING INSTRUCTIONS FOR YOUR SAFETY - READ BEFORE OPERATING WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE. SECTION 1 - START-UP PROCEDURES Your pool/spa heater has been designed for years of safe and reliable pool/spa water heating. -
Page 5: What To Do If You Smell Gas
CAUTION: Propane gas is heavier than air and will settle on the ground. Since propane can accumulate in confined areas, extra care should be exercised when lighting propane heaters. OPERATING INSTRUCTIONS AND SHUT-OFF PROCEDURES ELECTRONIC IGNITION SYSTEM (AUTOMATICALLY LIGHTED PILOT) *If you cannot reach your gas supplier, call the This appliance is equipped with an ignition fire department. -
Page 6: After Start-Up
AFTER START-UP WARNING: Operation of the heater without water circulation will cause rapid and severe damage to Feel the inlet and outlet pipes. Outlet pipe should be the heater, and will void the warranty. only slightly warmer than the inlet. It should not be hot. SECTION 2 - CAUTION WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas control... -
Page 7: Section 3 - Maintenance And Care Procedures
SECTION 3 - MAINTENANCE AND 2. Your pump strainer basket may be full. If so remove debris. CARE PROCEDURES 3. Your filter may be dirty. If so, backwash or clean WARNING: Check the heater for possible rodent filter. (To tell if your filter is dirty, look to see if the nests after long periods of non-use. -
Page 8: Cold Weather Operation
WINTERIZING THE POOL & SPA HEATER COLD WEATHER OPERATION Heaters installed outdoors in freezing climate areas IMPORTANT FREEZE INFORMATION may be shut down for the winter. Observe the follow- ing procedure for winterizing the heater: MODERATE CLIMATE: Heater operation can contin- ue during short-term cold spells. -
Page 9: Part Two
PART TWO INSTALLATION AND SERVICE INSTRUCTIONS SECTION 1 - RECEIVING EQUIPMENT INSTALLERS - The manufacturer recommends that this manual be reviewed thoroughly before installing the pool/spa heater. If there are any questions that this manual does not answer, please contact the factory or your local representative. -
Page 10: General Specifications
SECTION 2 - GENERAL SPECIFICATIONS 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. -
Page 11: Clearances
CLEARANCES ALL HEATERS Distance Description Location in. (mm) For clearances from combustible surfaces, see the Back 9 (229) 3-1/2 in. thick masonry walls chart below. without ventilated air space. Right 9 (229) Left 9 (229) Vent 5 (127) CLEARANCE FROM Indoor Top 39 (991) Outdoor Top... -
Page 12: Outdoor Heater Installation
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. -
Page 13: Florida And Texas Building Codes
FLORIDA AND TEXAS BUILDING CODES WIND SPEED = 150 MPH, 3 SECOND GUST EXPOSURE = C 268/408 Atmospheric MODEL # 23" 29" 40” 28” 2” x 6” x 1/8” Pallet Anchor Bracket (4 Total) (Kit# 011636) 3” Min. Conc. Pad by others 1/4”... -
Page 14: Indoor Heater Installation
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 communi- cate 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. -
Page 15: Specifications And Dimensions
SPECIFICATIONS AND DIMENSIONS Amp Draw 120 Volt 240 Volt FLUE 10" 6-5/8" 3-3/8" INDOOR DRAFTHOOD 40" 32-11/16" 38" ELECTRICAL STACKLESS CONNECTION OUTDOOR TOP 28-5/8" 13-1/4" CONNECTION 28" Shipping Weights (lbs) Standard ASME BTUH Heater Heater Indoor Heater Input Cabinet Flue Indoor Min. -
Page 16: Combustion And Ventilation Air
COMBUSTION AND VENTILATION AIR (Indoor Units Only) 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. -
Page 17: Appliance Categories
The discharge opening must be a minimum of 2 ft ver- APPLIANCE CATEGORIES tically from the roof surface and at least 2 ft higher than Heaters are divided into four categories based on the any part of the building within 10 ft. Vent stack shall pressure produced in the exhaust and the likelihood of be at least 5 ft in vertical height above the drafthood condensate production in the vent. -
Page 18: Gas Pressure Regulator
SUPPLY PRESSURES CAUTION: The heater and its manual shut-off valve must be disconnected from the gas supply during any NOTE: Do not use Teflon tape on gas line pipe pressure testing of that system at test pressures in thread. A pipe compound rated for use with natural excess of 1/2 psi (3.45 kPa). -
Page 19: Gas Pressure Adjustment Locations
GAS PRESSURE ADJUSTMENT LOCATIONS PIPE SIZING FOR GAS CONNECTIONS Gas Pressure Maximum Equivalent Pipe Length (ft) Adjustment Natural Gas 1000 BTU/FT 0.60 Specific Gravity @ 0.5 in. WC Pressure Drop Propane Gas 2500 BTU/FT 1.53 Specific Gravity @ 0.5 in. WC Pressure Drop Input 3/4"... -
Page 20: Water Connection Installation
WATER CONNECTION INSTALLATION The heater must be located so that any water leaks will not damage the structure of adjacent area. High Gather the loose items that were shipped with the temperature 2" plastic pipe (CPVC) may be threaded heater. They will be as shown below: directly into the header flanges. -
Page 21: Internal Automatic Bypass Valve
AUXILIARY BYPASS VALVE ADJUSTMENT INTERNAL AUTOMATIC BYPASS VALVE To set bypass: With clean filter, adjustment is made by In addition to the Unitherm Governor, a built-in auto- feeling the inlet and outlet pipes at the heater. Outlet matic bypass valve is provided in the in/out header. pipes should be slightly warmer than inlet and comfort- While the Unitherm Governor responds to the changes able to the touch. -
Page 22: Plumbing-Water Connections
PLUMBING—WATER CONNECTIONS Single Pool Heater Installation Multiple Pool Heater Installation The heater requires water flow and positive pressure to fire and operate properly. It must therefore be installed downstream of the discharge side of the filter pump. A typical installation is plumbed as follows: 1. -
Page 23: Electrical Wiring
ELECTRICAL WIRING NOTE: If it is necessary to replace any of the original CAUTION: Heater must be electrically grounded wiring, use 105°C wire or its equivalent, and/or 150°C and bonded. Bonding lug is provided loose with wire or its equivalent, like the original wiring. the heater. -
Page 24: Transformer Wiring
TRANSFORMER WIRING 120 VAC WIRING For 120 VAC input power to the unit, connect the black wire to the “L1” or hot leg of the power supply. Connect the white wire to the “Ret” or neutral leg of the power supply. Attach the wire nut to the red wire. There should be no connection to the red wire for 120 VAC operation. -
Page 25: Wiring Diagram
WIRING DIAGRAM... -
Page 26: Section 4 - Servicing Instructions
SECTION 4 - SERVICING INSTRUCTIONS GENERAL LOCATION OF CONTROLS Mounted on Return Header HL2 - High Limit Drain Plug Mounted on In/Out Transformer Header (behind panel) HL1 - High Limit Temp Sensor/Well AFT Thermostat Circuit Board Unitherm Governor Drain Valve Roll-Out Switch Gas Valve Pilot... -
Page 27: Thermostat Operation
THERMOSTAT OPERATION - ADVANCED FLAME TECHNOLOGY (AFT) BOARD Program button LCD Display Temp Buttons Mode Button pilot flame current using a bar graph and numerical The pool heater touchpad, located on the upper front display. A signal of less than 4 indicates a weak flame panel of the heater, allows the user to select either signal and may require service. - Page 28 Program Button Fahrenheit or Celsius 1) Remove the four screws holding the control cover, Refer to step one above to access the program and swing the panel down so the back side of the screen. Press the Mode button until Fahrenheit or Celsius appears on the digital display.
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Page 29: Status And Diagnostics
NOTE: The LCD temperature display may not agree with the temperature reading of your pool or spa ther- mometer. The heater reads the water temperature at the inlet. Due to the circulation characteristics of any pool or spa, the water temperature at the inlet to the heater may differ from that observed at a given location in the pool or spa. -
Page 30: Remote Control Installation And Operation
REMOTE CONTROL INSTALLATION AND OPERATION CAUTION: Before installing remote controls to the heaters, read the following: The digital thermostat model is remote-ready in most cases. The digital liquid crystal display (LCD) shows the actual pool temperature, operating status, and service codes (See examples below). The touch pad on the control panel allows you to select the desired pool or spa temperature. -
Page 31: Remote Control Wiring
REMOTE CONTROL WIRING Important Installation Notes for Remote or External Wiring Configuration • Remote wiring must be run in a separate conduit. • Remote wiring must not be run parallel to high voltage lines. • For runs of under 30 feet, remote wiring should have stranded conductors with a minimum of 22 AWG, 600V, cable twisting 1.5 to 2.5 in. -
Page 32: Time Clock/Fireman's Switch
TIME CLOCK/FIREMAN’S SWITCH FLAME ROLL-OUT SAFETY SWITCH To operate the heater with a time clock, connect The heater is equipped with a thermal cutoff device to the timer to the fireman’s switch connection in the prevent flame roll-out in the event the heat exchanger heater’s wiring. The time clock should be of the dual becomes blocked. -
Page 33: Pilot Safety
MAIN BURNER AND ORIFICE REMOVAL PILOT SAFETY 1. Remove burner tray. The heater employs a pilot safety which closes the 2. Remove screws and burner hold-down bracket. main gas valve within 8/10ths of a second whenever the pilot flame is interrupted. The pilot flame is auto- NOTE: If the heat exchanger is sooted badly, the matically lit when the device is powered. -
Page 34: Heat Exchanger Removal
Extension Pieces (2) Auger with Carbide Tip Wire Brush HEAT EXCHANGER REMOVAL 2. Remove “V” baffles from heat exchanger. 1. Shut water, gas and electricity off, close valves 3. Remove burner tray. (See page 33). and relieve pressure, then remove relief valve. 4. -
Page 35: Unitherm Governor (U.g.) Replacement
UNITHERM GOVERNOR (U.G.) REPLACEMENT 1. Shut water, gas and electricity off, close valves and relieve pressure. 2. Drain heat exchanger. 3. Remove retainer plug located next to the outlet pipe connection. 4. Unsnap old U.G. to remove from retainer plug. Snap in new U.G. -
Page 36: Section 5 - Troubleshooting
SECTION 5 - TROUBLESHOOTING MECHANICAL 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. -
Page 37: Control Logic - Flow Chart
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: Section 6 - Replacement Parts
SECTION 6 - REPLACEMENT PARTS If determined defective by the Company and with- NOTE: To supply you with the correct part, it is in warranty, a like part or equal substitution will be important that you supply the heater model number, returned, freight collect. - Page 39 15-H 13-H 14-H 19-H 10-H 11-H 12-H 20-H 22-H 21-H 20-H 22-H 21-H 12-S 18-H 17-H 16-H 18-H 11-S HONEYWELL IID ATMOSPHERIC PILOT 12-M 13-S 11-M 10-S...
- Page 42 NOTES...
- Page 43 NOTES...
- Page 44 www.raypak.com Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468 Litho in U.S.A.
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