25ONLYUSEGENUINEHAYWARDREPLACEMENTPARTS
51300803801REVB
INSTALLATION ABOVE POOL/SPA SURFACE: If the heater is
installed less than three (3) feet above the surface of the pool/spa
water, install eyeball fittings or directional flow fittings on the end of
the return water line to the pool/spa to create adequate back pres-
sure at the heater to operate the pressure safety switch when the
pump is running. If the heater is installed more than three (3) feet
above the surface of the pool/spa water, install a loop as shown in
Figure 17 to prevent drainage of water in the heater during a filter
change. For installation above or below the pool/spa surface, refer
to START UP section for proper pressure switch setup.
AUTOMATIC CHLORINATORS AND CHEMICAL FEEDERS: If
used, a chlorinator must be installed downstream from the heater in
the pool return line and at a lower elevation than the heater as
shown in Figure 18. Install a separate positive seal corrosion re-
sistant check valve between the heater outlet and the chlorinator to
prevent highly concentrated sanitizer from back siphoning into the
heater. Back siphoning may occur when the pump is shut off and a
pressure differential is created.
Figure 17: Installation Above Pool or Spa
Figure 18: Automatic Chlorinator
ELECTRICAL CONNECTIONS:
GENERAL INFORMATION: An external supply of power is required to operate the control system of the heater. The electrical specifications
for this heater are 120 or 240VAC, 60Hz, 1-phase, 5.5A maximum current. It is recommended that circuit protection for the heater circuit be
rated at 15 Amperes. The heater is shipped from the factory wired for use with 240VAC, 60 Hz field power supply. To convert the heater to
120VAC, 60 Hz operation, remove the 240VAC voltage selector jumper from the fuse board and replace it with the 120VAC jumper. These
jumpers are tie-wrapped together. See Figure 20 for location of the fuse board. All wiring connections to the heater must be made in accord-
ance with the latest edition of the National Electrical Code ANSI/NFPA 70, unless local code requirements specify otherwise. In Canada, follow
CSA C22.1 Canadian Electrical Code, Part 1. The heater must be electrically grounded and bonded in accordance with local codes or, in the
absence of local codes, with National Electrical Code, ANSI/NFPA 70. Wiring connections must be made as shown in the wiring diagram found
inside the heater cabinet, and a copy is provided for convenience as Figure 2 in the GETTING STARTED section at the beginning of the manu-
al. The heater must also have an independent ground and bond connection. There is a ground lug in the junction boxes adjacent to the power
connections and a bonding lug on the side of the heater Use a solid copper conductor, size No. 8 AWG (8.4 mm2) solid copper bonding wire
or larger for bonding conductor. Run a continuous wire from external bonding lug to reinforcing rod or mesh. Connect to the grounding lug pro-
vided and to all metal parts of swimming pool or spa, and to all electrical equipment, metal piping (except gas piping), and conduit within 5 ft.
(1.5 m) of inside walls of swimming pool or spa. IMPORTANT - Reference NEC codes for all wiring standards including, but not limited to,
grounding, bonding and other general wiring procedures.
WARNING:
Risk of Electric Shock Review all safety information provided in the GETTING STARTED section of this
manual prior to servicing. Always disconnect power circuit before servicing. This heater contains wiring that carries high
voltage. Contact with these wires could result in death or personal injury.
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