VENT DAMPER OPERATION
PROCEDURE 1—AUTOMATIC OPERATION OF VENT DAMPER
For safe, efficient operation, vent damper and all flue product carrying areas of appliance must be checked annually with particular attention given
to deterioration from corrosion or other sources. If corrosion or other deterioration is observed, contact your heating contractor for repairs. Check
vent damper operation as follows:
1. When boiler is off, check that vent damper position indicator points to CLOSED position. (See Fig. 9.)
2. Adjust thermostat or controller up to call for heat and check that vent damper indicator points to OPEN position. (See Fig. 9.)
3. Adjust thermostat or controller down again and check that vent damper position indicator returns to CLOSED position.
4. If system has central air conditioning, set thermostat to COOL and adjust it down to call for cooling. Cooling system should operate.
5. Return thermostat to desired setting.
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 vent damper is shown on installation label.
PROCEDURE 2—MANUAL OPERATION OF VENT DAMPER
The vent damper may be placed in OPEN position to permit burner operation by using the HOLD DAMPER OPEN switch located on damper
controller. The thermostat controls burner firing as before while damper remains open. 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 packaged with vent damper.
GAS SUPPLY PIPING
PROCEDURE 1—CHECKING GAS SUPPLY
The gas pipe to boiler must be correct size for length of run and Btuh input of all gas utilization equipment connected to it. See Table 4 for proper
size. Be sure gas line complies with local codes and gas company requirements.
Fig. 9—Vent Damper Position Indicator
A95147
FLUE GAS FLOW
CLOSED
OPEN
ROTATION
DAMPER CLOSED
FLUE GAS FLOW
CLOSED
OPEN
ROTATION
DAMPER OPEN
Fig. 8—Horizontal and Vertical Vent Damper Installation
A95145
FLOW
FLOW
YES
NO
NO
YES
TO FURNACE
OR BOILER
TO FURNACE
OR BOILER
VENT
DAMPER
VENT
DAMPER
ACTUATOR MAY BE
INSTALLED IN
ANY POSITION
INSTALL VENT DAMPER WITH
ACTUATOR TO SIDES OF
VENT ONLY. DO NOT MOUNT
ABOVE OR BELOW VENT.
TO CHIMNEY
TO CHIMNEY
HORIZONTAL INSTALLATION
VERTICAL INSTALLATION
Fig. 10—Typical Installation for Vent Damper
(Note Caution and Footnotes)
A95146
BOILER
CAUTION: Do not install
the vent damper
within 6 in. (152 mm) of
combustible material.
WATER HEATER
CHIMNEY
1
2
3
1.
2.
3.
Install the vent damper to service only the single appliance for
which it is intended. If improperly installed, a hazardous condition,
such as an explosion or carbon monoxide poisoning, could result.
Do not install the vent damper on vent pipe curve.
Do not run wires near high temperature surfaces. Use stand-off
brackets if necessary.
INSTALL
DAMPER
HERE
NOT
HERE
—12—
Содержание B Series
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Страница 32: ... 2003 CAC BDP 7310 W Morris St Indianapolis IN 46231 imbs1a05 32 Catalog No 63BS 1A3 ...