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Laars Heaters
1. Turn power off to heater.
2. Remove factory jumper from terminal block.
3. Wire Pro Logic to the heater as shown.
4. Ensure toggle switch is in the ON position.
5. Set heater thermostats to maximum position.
to limit switches
white
white
Fusible Link
Hayward Heaters
Refer to the instructions in the heater manual for "2-wire Remote Thermostat" operation under "Remote Control
Connections" and the diagram below:
1. Turn off power to heater.
2. Wire Pro Logic to terminals 1 & 2 (see diagram).
3. Leave jumper attached to terminals 4 & 5.
4. Move "BYPASS" dipswitch on heater circuit board to "ON" position (up).
5. Turn heater power back on.
6. Switch heater to either "Pool" or "Spa" (it doesn't make any difference which is selected, the Pro Logic will take
control).
7. Heater display should be "bO" (for "bypass On).
8. Heater will fire whenever Pro Logic requests (when Pro Logic "Heater" LED is illuminated).
Dipswitch located on heater
circuit board
Terminal block located at
electrical junction box
remove jumper
ºC
ON
ºF
OFF
PK
W
R
BK
R
Do not remove jumper
14
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