CENTRAL BOILER SINGLE-STAGE, NON-PROGRAMMABLE 

24-VOLT THERMOSTAT P/N 8200008.

CAN BE USED IN CONJUCTION WITH ZONE VALVES, 

ZONE PUMPS AND FORCED-AIR SYSTEMS OR USED 

TO OPERATE 24-VOLT 3-WAY ZONE VALVES 

(REQUIRES 24-VOLT TRANSFORMER).