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For safe, effi cient operation, the vent damper and all
fl ue product carrying areas of the appliance must be
checked annually by you, with particular attention
given to deterioration from corrosion or other
sources. If you see corrosion or other deterioration,
contact your heating contractor for repairs. Check
vent damper operation as follows:
When the boiler is off, check that the vent damper
1.
positions indicator points to the closed position, Fig.
8.
Turn the thermostat or controller up to call for heat
2.
and check the vent damper indicator points to the open
position, Fig. 8.
Turn the thermostat or controller down again and check
3.
that the damper position indicator returns to the closed
position.
If you have central air conditioning, set the thermostat
4.
to COOL and turn it down to call for cooling. Cooling
system should operate.
Return thermostat to desired position.
5.
The vent damper must be inspected at least
once a year by a trained, experienced service
technician. The name of the person who
originally installed your vent damper is shown
on the installation label.
MANUAL OPERATION OF THE VENT DAMPER
The vent damper may be placed in the open position
to permit burner operation by using the “HOLD
DAMPER OPEN” switch, located on the damper
controller. The thermostat will control the burner
fi ring as before, while the damper will remain open.
VENT DAMPER OPERATION
DO NOT turn damper open manually or motor
damage will result. Set switch to “AUTOMATIC
OPERATION” to close vent damper during burner off
cycle.
For further information, and for a vent damper
troubleshooting guide, refer to the manual that was
packaged with the vent damper.
Figure 8 - Vent Damper Position Indicator
GAS SUPPLY PIPING
!
CAUTION
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.•
Do not touch any electrical switch; do not use •
any phone in your building.
Immediately call your gas supplier from a •
neighbor’s phone. Follow gas supplier’s
instructions.
If you cannot reach your gas supplier, call the •
fi re department.
General
Use piping materials and joining methods acceptable •
to authority having jurisdiction. In absence of such
requirements:
USA - National Fuel Gas Code, ANSI Z223.1/NFPA •
54
Canada - Natural Gas and Propane Installation Code, •
CAN/CSA B149.1
Install fi eld sourced manual main shutoff valve and
•
ground joint union.
Size and install gas piping system to provide
•
suffi cient gas supply to meet maximum input at not
less than minimum supply pressure. See Table 4a &
4b.
NOTICE
Use two (2) wrenches when installing pipe to
gas valve. Boiler's gas valve can be damaged
if subjected to excessive torque.
Support piping with hooks straps, bands, brackets,
•
hangers, or building structure components to prevent
or dampen excessive vibrations and prevent strain on
gas connection.
Use thread (joint) compound (pipe dope) suitable for
•
liquefi ed petroleum gas.