Specifications

DURING A POWER FAILURE NEVER REFUEL THE BOILER.
GRAVITY LOOP (NO POWER)
A normally open powered zone valve must be installed to allow a free flow of water in a power off
situation. The override loop for the safety shall have at least 30 ft. of radiation above the wood
boiler for a gravity flow.
THE SAFETY GRAVITY LOOP SHOULD NOT RUN THROUGH ANY PLAS-
TIC PIPE.
11
PLUMBING CONNECTIONS DIAGRAM
BOILER
AIR VENT
AQUASTAT
SUPPLY
RETURN
CIRCULATOR PUMP
SUPPLIED
CHECK VALVE
CIRCULATING PUMP OFF
@ 150 DEGREES °F
PRIMARY PUMP ON
@ 150 DEGREES °F
Figure 2