Aquacal 120 Owner's Manual And Installation Manual page 57

Controls Configuration & Adjustments...
Water Flow (Pressure) Switch Adjustment... continued:
To Complete the Adjustment Procedure– Either Brand Switch:
1. With electrical power remaining ON to the heater and heater operating, shut off the power to the
circulating pump. If the switch has been correctly adjusted, when the water pump stops, the
heater will shut off and the "FLO" code will display.
CAUTION: If the heater continues to operate with water pump off, readjust water pressure switch
to ensure heater will not run without water flow.
2. Reinstall heater front cover.
P-1, WPS Location
S
HOULD ADJUSTMENT OF THE WATER PRESSURE SWITCH PROVE UNSUCCESSFUL
A C T
QUA AL ECHNICAL
P-3, TecMark Style Switch
S (800-786-7751);
UPPORT
THE INSTALLATION OF AN EXTERNAL FLOW SWITCH
P-2, Len Gordon Style Switch
-
SITE SPECIFIC FACTORS MAY REQUIRE
,
CONTACT
.
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