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Section 4 — CFC Commissioning
!
Warning
W h e n u s i n g d i r e c t v e n t
combustion in cold climates,
special care must be taken to
o b s e r v e
c o m b u s t i o n
temperature limits. Failure to
follow this precaution may lead
to equipment damage or unsafe
operation.
Figure 4-1 Opening Control
Panel
4-2
A. OPERATING CONDITIONS
• The installation site should be as free as possible from vibration,
dust, and corrosive media
• The controllers should be located as far as possible from sources
of electromagnetic fields, such as frequency converters or high-
voltage ignition transformers
• Control panel must be connected to earth ground.
• Refer to Section 3 in this manual for combustion air requirements.
a i r
Boiler room ambient conditions
Relative humidity
Ambient temperature range
Storage temperature range
Combustion air temperature
B. FILLING BOILER
Fill the boiler and/or hydronic system. Water should be circulated
through the system to allow entrapped air to escape at appropriate
air venting provisions. Check to ensure that no leaks appear at any
pipe connections and correct if water leaks are noticed. When no air
remains in the boiler, it will be possible to reset the low water cutoff.
If the low water cutoff can not be reset, it is likely that some air
remains in the boiler.
C. CONTROL SETPOINTS
Preliminary settings of the burner/boiler safety controls are
necessary for the initial starting of the boiler. After the burner has
been properly set, minor adjustments to these controls may be
necessary for the particular installation. For initial starting, set the
following controls accordingly:
1. Combustion Air Proving Switch - Set the dial @ minimum.
2. Low Gas Pressure Switch - Set the dial @ minimum.
3. High Gas Pressure Switch - Set the dial @ maximum.
4. High Air Pressure Switch - Set the dial @ maximum.
Depress all manual reset buttons for all controls prior to starting.
< 85% non-condensing
o
o
o
0
C to 50
C / 32
F to 122
o
o
o
-40
C to 60
C / -40
F to 140
o
o
o
0
C to 50
C / 32
F to 122
Part No. 750-263
o
F
o
F
o
F
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Troubleshooting
