17
Getting Familiar with Controls
START-UP & OPERATION
Heat Wave/AeroTemp
100R &120R Control Panel Features
1) POWER LIGHT – Indicates electrical power is supplied to the heater.
2) FLOW LIGHT – Indicates water pressure (flow) is present at the heater.
3) DEFROST LIGHT – Indicates heater is in the defrost mode.
4) HIGH REFRIGERANT PRESSURE – Indicates excessively high refrigerant pressure. Heater may
not be receiving adequate water flow.
5) LOW REFRIGERANT PRESSURE – Indicates abnormally low refrigerant pressure.
6) POOL TEMPERATURE CONTROL – Controls POOL temperature set-point.
7) SPA TEMPERATURE CONTROL – Controls SPA temperature set-point.
8) POOL/OFF/SPA SELECTOR SWITCH – Selects between POOL and SPA thermostats, or OFF
position.
9) HEAT/COOL SELECTOR SWITCH – Selects either HEATING or COOLING.