16
CleanFire Owners Manual
2016
Installation
Hot Water Supply from
WoodMaster
Cold Water Return to
WoodMaster
Existing Heat
Zone Return
WoodMaster Water to
Water Heat Transfer Unit
Circulating Pump
for Existing Hot
Water Heating
System
Existing Hot
Water Boiler
Cold Water Return from
Heat Exchanger
Domestic Water
Supply for fi lling
boiler
Cold Water
Return to
WoodMaster
Existing Hot Water Heat
A Water to Water Heat Transfer Unit (0020-052) is used to connect to an existing hot water boiler system.
Note: Any changes that are made to an existing boiler should be done by a qualified
plumber and follow all state and local codes.
In Line Filter and Fill Valve Assembly
The In Line Filter and Fill Valve Assembly (0020-325) must be installed in the cold water return line before the
line exits the building. It should be placed so that a garden hose can be connected between a domestic water
supply and the fill valve.
Hot Water Supply from
WoodMaster
Cold Water Return to
WoodMaster
Existing Heat
Zone Return
WoodMaster Water to
Water Heat Transfer Unit
Circulating Pump
for Existing Hot
Water Heating
System
Existing Hot
Water Boiler
Cold Water Return from
Heat Exchanger
Domestic Water
Supply for fi lling
boiler
Cold Water
Return to
WoodMaster
Filling With Water
Connect a garden hose between a domestic water supply and the boiler fill valve (0020-325), which was installed in
the cold water return line at a point just prior to its exiting the building. Make sure there is no blockage in the lines
and that the boiler drains are closed and the overhead air bleed valve is open. Begin filling and inspect for leaks on
all fittings. Repair any leaks that are found. Fill until water comes out of the air bleed valve on the boiler. Close the
bleed valve and switch the pump on. Monitor the pressure in the boiler and add water as the remaining air in the
system is purged.
Routinely pay attention to the water pressure level. If the water pressure falls below 10 psi during normal operating
temperatures, add water to increase the pressure in the system. A water pressure gauge is installed on the boiler
from the factory. A second pressure gauge may be installed indoors to monitor the system pressure more easily.
