Pomona, CA Clemmons, NC Nashville, TN
Tel: 908-355-7995 www.hayward-pool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
14
ATTENTION:
Whenever a high-pressure double regulation system is utilized for propane gas, consult
a propane expert for accurate pipe and pressure sizing. Make sure that 1st and 2nd 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 siz-
ing resulting in improper gas volume.
WATER PIPING:
The heater is designed for use
with pool and spa/hot tub water only, as furnished by municipal water dis-
tribution systems. The warranty does not cover heater use with mineral water, seawater (PPM>5000), or other
non-potable waters.
Do not install any restriction in the water pipe between the heater outlet and the pool/spa with the
exception of:
1. three-way switching valve
2. in-line chlorinator
3. chlorinator check valve
WARNING
:
EXPLOSION
HAZARD
Blockage of water
fl
ow from heater return to pool
may result in
fi
re or explosion
causing property damage, personal
injury, or loss of life.
The heater is shipped with CPVC
fl
anged pipe
nipples that are pre-assembled with the required reducer
to be used with the supplied 1.5”
fl
exible hose
fi
ttings.
Assemble all water connection components as shown in Figure 05. Assemble these parts to the heater prior to
plumbing. Tighten all nuts securely, ensuring a seal with the rubber gaskets, before connecting
fl
exible hose.
The CPVC
fl
anged pipe nipples and reducers must be installed on the heater inlet and outlet without modi-
fi
cation. Pipe,
fi
ttings, valves, and any other element
of the
fi
lter system may be made of plastic materials, if
acceptable to the authority having jurisdiction.
Installation of this pool/spa/hot tub heater with
rigid PVC pipe plumbed directly to the inlet and outlet
connections of the heater requires purchase of Hayward
accessory Union Kit SPX3200UNKIT. The kit contains
the appropriate gaskets, pipe nipples and union nuts to
allow 2” or 2 ½” PVC pipe to be plumbed to the unit.
Use PVC primer and glue to connect water piping to the
connectors supplied in the kit.
Heat sinks, heat tapes,
fi
remen switches, and check
valves are not required on the heater. However, if there
is any chance of “back-siphoning” of hot water when
the pump stops running, it is suggested that a check
valve be used on the heater inlet pipe.
The built-in bypass inside the header will maintain
proper
fl
ow through the heat exchanger if the
fl
ow rate
Gaskets
Pipe Nipples
Union Nuts
Heater
Header
1.5” Hose Fittings
Figure 05:
Water Connection Assembly
Heater Inlet
Heater Outlet
Flow Meter
Return to
Pool / Spa
Bypass Valve
Figure 06:
Manual Bypass valve