Hayward H250FDN Service & Installation Manual
Pool and spa/hot tub heaters
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HAYWARD
H250FDN & H250FDP; H350FDN & H350FDP;
SERVICE & INSTALLATION MANUAL
FOR YOUR SAFETY
WARNING: If the information in these
instructions is not followed exactly, a fire or
explosion may result causing property damage,
injury, or death.
- Do not store or use gasoline or other flam-
mable vapors or 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 product must be installed and serviced by authorized personnel, qualified in pool/spa
heater installation. Improper installation and/or operation can create carbon monoxide gas
and flue gases that can cause serious injury, property damage, or death.
POOL AND SPA/HOT TUB HEATERS
H400FDN & H400FDP MODELS
FOR YOUR SAFETY
®
1301623301 1107
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Table of Contents
Troubleshooting
Related Manuals for Hayward H250FDN
Summary of Contents for Hayward H250FDN
- Page 1 HAYWARD ® POOL AND SPA/HOT TUB HEATERS H250FDN & H250FDP; H350FDN & H350FDP; H400FDN & H400FDP MODELS SERVICE & INSTALLATION MANUAL FOR YOUR SAFETY WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, injury, or death.
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Page 2: Table Of Contents
Keypad inputs ..........34 Automatic reset time ........34 Periodic inspection ........34 Winterization ..........35 Removing the drain plug ......35 Spring start-up ..........35 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 3: Safety Information
To reduce the risk of electric shock, the electrician must comply with installation in- structions and must bond the heater accordingly. In addition, the licensed electrician must also conform to local electrical codes for bonding requirements. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... - Page 4 Install two or more suction outlets per pump in accordance with latest APSP (formally NSPI) Stan- dards and CPSC guidelines. Follow all applicable National, State, and Local codes. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 5 It is also necessary to allow the motor to cool for at least 0 minutes prior to maintenance to minimize the risk of burns. WARNING – Failure to install according to defined instructions may result in severe personal injury or death. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 6 A unit for measuring pressure below atmospheric (“suction” or “vacuum”) (1.0 inch Hg = .491 PSI) Main Drain – See Suction Outlet PSI – An abbreviation for pounds per square inch. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
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Page 7: Section I General Information
This manual contains instructions for installation, operation, maintenance, troubleshooting, and parts lists for the safe use of the swimming pool/spa/hot tub heaters. Hayward strongly recommends that the installer read the manual before installing the swimming pool/spa/hot tub heater. If after reviewing the manual any questions remain unanswered, contact the factory or local representative. -
Page 8: Section Ii Installation
The screw through the rear shipping bracket is located in this area. Remove the screw. It is not necessary to remove the bracket or the rear louvered panel. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... - Page 9 5. Lift the heater clear of the corrugated bottom pad and off of the pallet. ATTENTION: Do not drop the heater from a pickup truck tailgate to the ground. This may damage the heater. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400...
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Page 10: Outdoor Air Supply
100 sq. in. 100 sq. in. Left side – ” 50,000 87.5 sq. in. 87.5 sq. in. Combustible floor 50,000 .5 sq. in .5 sq. in. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 11: Indoor Install Clearances
Front - Unobstructed Back - ” Right side (Water side) - 1” Left side - ” For use on combustible floors. Do not install in a closet. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 12: Air Supply
400,000 100 square in. 100 square in. 400,000 200 square in. 200 square in. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS 1 Square Inch Per 2000 BTU Per Hour Pomona, CA Clemmons, NC Nashville, TN Input Combustion Air Ventilation Air Figure Tel: 908-351-5400 www.haywardpool.com... -
Page 13: Venting
The correct vent adapter kit as shown in Table BB must be installed on the heater before connecting the Special Gas Vent to the heater. See Table CC for maximum vent lengths. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... - Page 14 SPECIAL GAS VENT ADAPTER KIT INSTALLATION: A vent adapter must be installed to the heater exhaust outlet. The vent adapter is available from Hayward and must be installed without modification. The necessary components are contained in the vent adapter kit listed in Table BB.
- Page 15 . Secure vent section Vent Adapter by sliding the ring of the vent section over the tabs of the Vent Adapter and bending the tabs over the ring. See Figure 1. Attaching Vent to Vent Adapter Figure 1 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
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Page 16: Reversible Water Connections
15. Run the thermistor leads into the cabinet through the hole in the left-hand side jacket and through the top hole in the control box. 1. Assembly is the reverse of steps – 11. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... - Page 17 DISTANCE FROM OUTLET OF 2nd STAGE 250,000 350,000 400,000 REGULATOR TO GAS VALVE INLET LINE MATERIAL IRON PIPE IRON PIPE IRON PIPE 0 to 50 feet 3/4" 3/4" 3/4" USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 18 REGULATOR TO GAS VALVE INLET IRON LINE MATERIAL TUBING IRON PIPE TUBING IRON PIPE TUBING PIPE 0 to 50 feet 1/2" 3/4" 3/4" 7/8" 3/4" 7/8" USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
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Page 19: All Gas Installations
(Example: 5 meter = 5,000 BTUH). If doubt exists as to the meter size, consult the local gas utility for assistance. Hayward will not be responsible for heaters that soot up due to improper meter and gas line sizing resulting in improper gas volume. -
Page 20: Water Piping
Make sure that 1st and nd stage regulators are large enough to handle the BTUH input listed for the heater(s) being used. Hayward will not be responsible for heaters that soot up due to improper gas line or propane tank sizing resulting in improper gas volume. - Page 21 Figure 20 under all operating conditions. The heat ex- changer will fail and this damage will not be covered under the Hayward warranty. Figure illustrates a typical pool piping diagram and layout for the pool equipment.
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Page 22: Install Above Pool Surface
Back- siphoning usually occurs when the pump is shut off and a pressure differential is created. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 23: Pressure Relief Valve
CAUTION - This heater must be connected to a bonding grid with a solid copper conductor wire gauge 8 AWG or larger. All Hayward heaters are designed for copper conductors only. The National Electrical Code (NEC), and most other codes require that all metallic components of a pool structure, including reinforcing steel, metal fittings and above ground equipment, be bonded together with a solid copper conductor wire gauge 8 AWG or larger. -
Page 24: Electrical Connections
Field wiring ground lug is Field wiring here Field wiring panel connection Voltage selector jumper (240VAC or 120VAC) (Control box cover not shown) USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... - Page 25 Figure 28: Wiring connection diagram The wiring diagram label is affixed to the control box cover.
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Page 26: Remote Control Connection
Remote wiring must be run in a separate conduit. Use 22 AWG wire for runs less than 30 feet. Use 20 AWG wire for runs over 30 feet. The maximum allowable run is 00 feet. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... - Page 27 High” the “SPA” LED will be illuminated and the water temperature will be displayed. The heater will use its internal thermostat to regulate the water temperature to the set point of the mode selected. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 28 Figure 30: Lighting & Operating Instructions label...
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Page 29: Section Iii Check-Out & Start-Up
. Heat exchanger soots up. The gas pressure regulator on all heaters is preset at the factory, but the setting should be verified by the installer to ensure proper operation. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... - Page 30 Figure 32: Gas valve Regulator Inlet adjustment pressure screw under tap plug this screw ON/OFF DECREASE INCREASE knob PRESSURE PRESSURE Manifold pressure Electrical tap plug terminals USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
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Page 31: Install Below Pool Surface
“ON” or “OFF”. If the heater is installed beyond pressure limits, a flow switch must be installed in the water line to the heater. (See Figure : heater installation below pool Figure ) water surface USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 32: Temperature Control Operation
5. The blower vacuum switch, the temperature limit switches, the vent pressure switch, the water pressure switch, the water temperature sensors, and the flame sensor are constantly monitored during a call for heat to assure the heater is operating properly. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 33: Retry
This learning routine is repeated periodically. The control continuously monitors supply voltage and compen- sates for any changes to igniter temperature. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 34: Keypad Inputs
5. If the heater is operating on propane gas, the tank must not fall below 0% full or damage to the heater may occur. Hayward will not be responsible for heaters that soot up due to improper gas level in the tank resulting in inadequate gas volume. -
Page 35: Winterization
3. Turn the filtration system pump “ON” and allow the system to run long enough to purge all the air from the lines. Figure 36: Drain plug and relief valve location Header Drain plug Relief valve location (if required) USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... - Page 36 6. If operating difficulties are encountered, contact a qualified service company for assistance. ATTENTION: Heater installation, checkout, and start-up should now be completed. BE SURE to leave the Owner’s Manual with the pool owner. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400...
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Page 37: Section Iv Technician Service
Steps 1- above. End cap End cap Front access Control box Side jacket panel Control box cover USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 38: Heat Exchanger Inspection
The combustion chamber is a single-piece casting. If damaged, the entire chamber must be replaced. HEAT ExCHANGER REMOVAL: Follow steps 1-1 under “External heat exchanger inspection and cleaning” in this section. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 39: Burner Inspection
9. Remove the air box cover. Do not remove the blower from the air box cover. 10. Remove the () screws securing each burner to the combustion chamber front. 11. Pull the burners straight out of the heater. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 40: Burner Installation
Do not place pipe dope on the first two threads of any joint. 9. Complete assembly by reversing steps 1 – 5. Figure 41: Correct orientation of components of gas manifold assembly USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 41: Igniter
7. After cleaning or replacing orifices re-install into the gas manifold pipe being careful not to cross- thread or over tighten as a leak may result. ATTENTION: Do not enlarge orifice holes. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 42: Gas Conversion
ATTENTION: Conversion kits are not available in Canada. Conversions must be performed by the conversion station at Hayward Pool Products Canada, Inc. CONTROL LOCATIONS: The following sections give a brief overview of the various heater controls and service/replacement pro- cedures. -
Page 43: Ignition Control Board
The tubing on the blower vacuum switch should be attached to the blower housing pressure tap that faces the front of the heater. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 44: High Limit Switch
5. Replace the high limit switch. Use new sealant on the high limit switch threads before reinstalling. Reassembly is a reverse of steps 1 – . USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 45: Water Pressure Switch
5. Using two ½” open-end wrenches disconnect the pressure switch from the pressure switch tubing. 6. Replace the pressure switch. Use new sealant on the pressure switch threads before re-installing. 7. Reverse steps 1 – 5 to complete the procedure. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 46: Transformer
6. Check the function of the bypass valve to ensure the valve flaps rotate smoothly on the shaft, and the spring fully closes the valve. 7. Apply silicone o-ring grease (Hayward Jack’s 327 Multilube P/N SP032712, or equivalent) on o-ring seals on new bypass cartridge before inserting into the header. - Page 47 Figure 50: Components of water header and bypass valve USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
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Page 48: Section V Troubleshooting
“STANDBY” and back to the original operating mode (“POOL” or “SPA”). ERROR CODES: See Figure 52 for an error code chart. TROUBLESHOOTING: See Figure 53 for troubleshooting guide. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 49: Supply Wiring
See Figure 51 for their locations. Fuses are available as common hardware items Make remote connections to the terminal or may be purchased from Hayward in a ser- block on the outside of the control box vice parts kit. The fuse specifications are: •... -
Page 50: Error Codes
“out of bounds” condition on both sensors (less than 10°F or greater than 180°F) will result in the error code. Automatic restart is minutes after the error is corrected. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400... -
Page 51: Error Codes
minutes after the error condition is corrected and the limit string closes. See below for more detail. EEPROM ERROR An error was detected in the ignition control circuit board. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com... -
Page 52: Troubleshooting
Figure 53: TROUBLESHOOTING Code Fault Diagnosis Step Remedy Heater will not 1. Check for Low & High Disconnect plug from P5 connector from Fuse Board. Measure power up. Voltage Output from Fuse for VAC between pins of receptacle on Fuse Board. Reconnect Board plug. - Page 53 1. Check for faulty wiring Inspect Igniter wiring. Ensure Igniter Plug is securely attached to or connection. Control Module. If OK, proceed to step 2. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS . Igniter is defective Replace Ignitier. Pomona, CA Clemmons, NC Nashville, TN Keypad Failure 1.
- Page 54 Figure 53: TROUBLESHOOTING Code Fault Diagnosis Step Remedy Transformer 1. Check for faulty wiring Inspect sensor wiring. Ensure sensor is pluggd into back of control sensor input or connection. module. If OK, proceed to step 2. failure . Sensor is defective Replace temperature sensor.
- Page 55 Figure 53: TROUBLESHOOTING Temperature limit 1. Check for faulty wiring Inspect temperature limit switch wiring. Ensure wire harness teminals switch fault or connection. are securely fastened to spade terminals on temperature limit switches. If OK, proceed to step 2. Temperature .
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Page 56: Warranty
HAyWARD POOL HEATER CERTIFICATE OF LIMITED WARRANTy Limited heater warranty: TERMS AND COVERAGE: We warrant our pool heater to be free from defects in workmanship and materi- als under normal use and service. Pursuant to this warranty and subject to the Conditions and Exceptions indicated below: 1. - Page 57 ALS, SUCH AS GASOLINE OR PAINT THINNERS, BE USED OR STORED IN THE VICINITy OF THE HEATER OR IN ANy LOCATION FROM WHICH FUMES COULD REACH THE HEATER. For your comfort, enjoyment and safety, please read the enclosed operating instructions carefully. USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400...
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Page 58: Service Parts
SERVICE PARTS... - Page 59 FDXLGSV0002 GAS VALVE PROPAnE - FD FDXLBRn1930 BURnER (nOT SHOWn) FDXLBOn1930 BURnER ORIFICE nATURAL FD FDXLBOP1930 BURnER ORIFICE PROPAnE FD FDXLMAn1250 GAS MAnIFOLD - H250FD USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 60 GASKET, RAIn GUARD BOTTOM FRnT & REAR - H400FD GASKET, RAIn GUARD BOTTOM FRnT & REAR - H350FD GASKET, RAIn GUARD BOTTOM FRnT & REAR - H250FD USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400...
- Page 61 FDXLIVT1250P VEnT ADAPTER - H250FD, PROPAnE FDXLFHD1930 HEADER OnLY FDXLCRn1930 HEADER CARTRIDGE RETAInInG nUT SPX4000FG DRAIn PLUG WITH GASKET SPX3200UnKIT UnIOn nUTS, COnnECTORS, AnD GASKETS USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 62 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 63 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS Pomona, CA Clemmons, NC Nashville, TN Tel: 908-351-5400 www.haywardpool.com...
- Page 64 Hayward Pool Products, Inc. Hayward Pool Products, Inc. Hayward S.A. 620 Division St. 2875 Pomona Boulevard 2880 Plymouth Drive zoming de Jumet Elizabeth, nJ 07207 Pomona, CA 91768 Oakville, Ontario L6H 5R4 B6040 Jumet, Belgium © 2004 Hayward Printed in U.S.A.
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Questions and answers
LO code wont heat up
The Hayward H250FDN is showing an LO code and not heating up due to a limit string open error. This means a safety limit switch has opened, preventing the heater from firing. The heater enters lockout and will attempt an automatic restart 2 minutes after the issue is corrected and the limit string closes. Possible causes include a dirty or damaged heat exchanger, incorrect gas pressure, or a faulty temperature limit switch.
This answer is automatically generated