17
FORCE E
Installation, Operating & Service Manual
109444-03 - 12/19
A. Visual Main Burner Check
Inspect burners for dislodgement during
shipment. Rear of burners should be in vertical
slots in rear of burner tray and front of burners
should be seated completely on orifices.
B. Initial LWCO Test
Before filling boiler with water, turn on power to
boiler and set thermostat to call for heat. Both
the green "ACTIVE LED" and amber "LOW WATER"
LED should illuminate. Burner should not fire.
WARNING
If the burner fires with no water at probe,
immediately shut down power to boiler and
contact customer service for assistance.
C. Fill boiler with water
1. Proceed to fill boiler with water. When water
reaches temp/LWCO sensor "LOW WATER"
LED will turn off and burner will fire.
2. Turn off power to boiler and finish filling
system.
D. Purge air from system
1. Fill entire heating system with water and
vent air from boiler, radiators and system,
one zone at a time.
2. Isolate boiler by closing isolation valves.
3. Isolate all circuits by closing zone valves
or turning off zone circulators.
4. Attach hose to drain valve located
on return piping (see Figure 6-3 and 6-4).
Note-Terminate hose in five gallon bucket,
at a suitable floor drain, or outdoor area).
5. Starting with one circuit, open zone valve or
start circulator.
6. Open drain valve.
7. Open fill valve.
8. Allow water to flow through system until
discharge from hose is bubble free for 30
seconds.
9. Open zone valve or start circulator to
second zone to be purged, then close
first. Repeat this step until all zones have
been purged, but always have one zone
open. At completion, open all zone valves.
10. Close hose bib, open boiler isolation
valve, continue filling system until
pressure gauge reads 12 psi.
Close fill valve. (Note - If make-up water
line is equipped with pressure reducing
valve, system will automatically fill to 12
psi).
11. Remove hose from drain valve.
E. Perform gas leak test upstream of boiler shutoff
valve.
1. Protect boiler gas valve.
a. For all testing over ½ psig, boiler
and manual shutoff valve must be
disconnected from gas supply piping.
b. For testing at ½ psig or less, isolate
boiler from gas supply piping by closing
boiler manual shutoff valve.
2. Locate leaks using listed combustible
gas detector, a noncorrosive leak detection
fluid or other listed leak detection method.
3. Tighten appropriate pipe connections.
9
System Start-Up and Checkout
!
DANGER
Do not use matches, candles, open flames, or
other ignition sources.
!
