September
2012 Page
27
2) TEST WATER QUALITY
Test system water pH to determine if water treatment is necessary. Heating system water pH of 8.5 to 11.0 is
recommended. Swimming pool pH test kits are readily available from other sources. Consult local water treatment
companies for unusually hard water areas (above 7 grains hardness) or low pH water conditions (below 7.0). Use only
water treatment designed for hydronic systems. For systems with poor water quality a corrosion inhibitor is required
to be maintained to stay within the warranty.
3) RE-FILL SYSTEM WITH WATER AND BLEED AIR
It is recommended to fi ll the system initially with water (even if non-toxic antifreeze will be used later) unless the
temperatures are below freezing temperature make it impractical. This will make it easier to drain and refi ll if it is
necessary to repair leaks or bleed out air. It is important to bleed air correctly when fi lling the appliance. Do not have
appliance pump running during fi lling and bleeding.
A) Re-attach garden hose to water supply and drain valve “G”.
B) Crack open drain valve “D” purging any air trapped at the top of the boiler.
C) Crack open drain valve “C” and repeat purging.
D) Slowly open Drain Valve “G” until Boiler pressure indicates 10 psi.
E) Open Isolation Valves “B” and “C”.
F) Verify that solid fuel boiler pump isolation fl anges are open and start the solid fuel boiler pump. Verify that it is
running by placing the blade of a screw driver against the pump motor, and the butt against your ear.
G) Open (do not remove) small cap on auto air vent. The pump will circulate water and any air should escape out the
auto air vent. Pressure may drop from air escaping. Add more water with the garden hose or keep fi ll valve. When
adding more water, fi ll garden hose with water before attaching to the appliance to prevent from pushing more air
into
system.
4) INSPECT SYSTEM FOR LEAKS
After fi lling the appliance and system with water, inspect all piping throughout the system for leaks. If found, repair
immediately. Repeat this inspection after the boiler has been started and the system has heated up.
LEAKS MUST BE REPAIRED AT ONCE. Failure to do so can damage the appliance, resulting in
substantial property damage. Do not use PETROLEUM-BASED CLEANING OR SEALING
COMPOUNDS in the heating system. Severe damage to the appliance can occur, resulting in
substantial property damage.
WARNING
INITIAL SYSTEM FILL(CONT.)
