Hayward H250 User Manual

CONTENTS
SECTION 5 (CONT.) CONSUMER OPERATION & MAINTENANCE PROCEDURES.............. 21
Heater Operation......................................................................................... 21
Lighting Instructions - Millivolt..................................................................... 22
Operating Instructions - Electronic Ignition................................................. 23
Temperature Controls.................................................................................. 24
Periodic Inspection...................................................................................... 24
Winterization................................................................................................ 25
Spring Start-up............................................................................................ 25
SECTION 6 QUALIFIED TECHNICIAN - MAINTENANCE/SERVICING....................... 26
General........................................................................................................ 26
Maintenance................................................................................................ 26
Control Access............................................................................................ 26
External Heat Exchanger Inspection And Cleaning.................................... 26
Heat Exchanger Removal........................................................................... 27
Combustion Chamber.................................................................................. 27
Internal Heat Exchanger Inspection And Cleaning..................................... 27
Burner Inspection And Cleaning.................................................................. 28
Burner Assembly Removal.......................................................................... 28
Burner Assembly Installation....................................................................... 28
Gas Valve Replacement.............................................................................. 29
Pilot Assembly Removal.............................................................................. 29
Igniter Assembly Removal........................................................................... 30
Main Burner Orices.................................................................................... 30
Gas Conversion........................................................................................... 30
Control Locations........................................................................................ 31
Electrical Wiring........................................................................................... 31
System Switch............................................................................................. 31
Temperature Controls.................................................................................. 31
High Limits................................................................................................... 31
Temperature Limiter Switches..................................................................... 32
Pressure Switch.......................................................................................... 32
By-pass Valve.............................................................................................. 32
Thermal Control Valve................................................................................. 33
Transformer................................................................................................. 34
Thermistor.................................................................................................... 34
SECTION 7 TROUBLESHOOTING................................................................................ 34
Troubleshooting Chart................................................................................. 35
Troubleshooting Chart - Millivolt.................................................................. 36
Troubleshooting Chart - Electronic.............................................................. 38
PARTS LIST - MILLIVOLT.................................................................................................................. 40
PARTS ILLUSTRATION - MILLIVOLT................................................................................................ 41
PARTS LIST - ELECTRONIC IGNITION............................................................................................ 43
PARTS ILLUSTRATION - ELECTRONIC IGNITION......................................................................... 44

Hayward H250 Specifications

General

Model	H250
Category	Swimming Pool Heater
Thermal Efficiency	80%
Maximum Working Pressure	50 psi
BTU Input	250, 000 BTU
Heat Exchanger	Cupro-Nickel
Ignition Type	Direct Spark
BTU Output	200, 000 BTU/hr
Ignition	Direct Spark Ignition