5
MODES OF OPERATION
To Change Between Pool and Spa Set Points Automatically:
This change can be done automatically as the water flow is either directed to the pool or spa. The use of an
external water pressure switch in the spa piping
IS
necessary. A two-wire control circuit must be connected
from the water pressure switch to terminals 18 and 19 on the electronic control board. The red jumper wire
at the top of the control board must then be cut to activate this system.
Remote Thermostats and Controllers:
If a remote thermostat or any other control system is to be used to turn the heater on and off, a normally open
dry contact can be made at terminals 18 and 19 on the bottom right of the electronic control board. The red
jumper at the top of the control board must then be cut to activate this system. In the case of a remote
thermostat where the temperature will be regulated externally, set the Pool Mode to the OFF position and
the Spa Mode to 104
°
F (40
°
C). The heater will only run when the remote control calls for heating.
REMOTE SPA PRESSURE
SWITCH OR AUTO
CONTROLLER (N.O.
)
2 METHODS CAN BE USED TO SWITCH UNIT BETWEEN POOL AND SPA MODE.
J-1 JUMPER - NOT CUT: Using the select key will activate either mode manually.
J-1 JUMPER - CUT: A remote switch connected to terminals 18 and 19 will activate SPA MODE.
RED JUMPER “J1”
ELECTRONIC
CONTROL
BOARD
18 19
Summary of Contents for AC110
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