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Les langues disponibles
Aquastat
Room
thermostat
Signal line from PRIORITY1
Signal line from PRIORITY2
Power supply
Power to the PRIORITY 1 pump.
*Max 2.2 Amp. or less.
Electrical Cautions
- Connect the power to the circulating pumps to the terminal in the boiler.
- This model does not require a boiler protection loop.
- The unit may operate under cold weather conditions to prevent freezing.
- The freeze protection in this appliance relies on the ability to control the water that is circulating through
it. In order to be protected from cold weather, please make sure that nothing will prevent the unit from
being able to circulate water:
- The freeze prevention in this appliance will not work if power is lost or disconnected, if power is not
connected to the pump, if the pump is not connected to the unit, or if the pump fails.
- Additionally, if any of the loops that the boiler is supplying hot water to is blocked or shut off, the freeze
prevention may not be able to function properly.
- Connect the pump on the indirect water heating loop to the discharge side of the pump for the heating loop
(See diagram)
- Use an aquastat on the indirect domestic water heating tank and connect it to the Priority 1 terminal inside
the boiler. Connect the thermostat of the heating system to the Priority 2 terminal in the boiler.
- A 15 VDC, 0.1 Amp signal flows in the terminals. Use low Amp thermostats or zone controllers. 15 Amp
devices may not operate properly.
Ground
Power to the PRIORITY 2 pump.
*Max 2.2 Amp. or less.
CAUTION
C
A
B
D
Input up to
Input up to
120VAC 1Amp.
120VAC 1Amp.
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