Connecting Suntouch To Heaters; Connecting To A Standard Heater - Pentair Pool and Spa Control System SunTouch Installation And User Manual

Connecting SunTouch to Heaters

The SunTouch Power Center provides a set of low voltage dry contacts that can be connected to most gas
heaters or heat pumps with 24 VDC control circuits. Refer to the diagram below for a generic heater
connection. Refer to your heater documentation for specific wiring instructions for connecting the heater to an
external control (typically using a two-wire remote control connection). For connection to millivolt or line
voltage heaters, contact Pentair Technical Support (see page iv).

Connecting to a standard heater

The following installation instructions are for gas heaters and heat pumps with low voltage thermostats.
To connect a standard heater to SunTouch:
1. Switch the power OFF to the heater.
2. Run a two-conductor cable from the heater thermostat area to the low voltage raceway to the
motherboard in the SunTouch Power Center. Use 105° C temperature rated wire for connection to
the heater. When connecting wires inside the heater, be cautious of HOT internal parts of the heater.
Refer to the heater owners manual for the manufacturer's recommendations for the minimum
temperature rating for wires..
3. Strip the conductors ¼ in. Insert the wires into the GAS HEATER two-screw terminals (J12) on the
motherboard. For SunTouch motherboard wiring connections, refer to "SunTouch Motherboard
Connections," on page 51.
4. At the heater, connect the wires in accordance with heater manufacturer's instructions. For older
heaters without instructions for remote operation, connect the wires to the Fireman's switch
connections in series with the thermostat, pressure switch, and other safety switches.
5. Do NOT disconnect or wire around the thermostat, pressure switch, high limit switch, or other safety
devices.
6. Switch ON the main power switch of the heater. Note, SunTouch does not control the AC power to
the heater.
7. Set the heater thermostat to the maximum hottest setting.
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