6
A factory-mounted spill switch is provided on all VS-B
boilers (see Figures 2.4 & 2.4A).
The flue or vent connectors must be installed flush with the
inside chimney liner surface and sealed in place with fur-
nace cement. Horizontal positions of the single wall and
type B venting systems shall be supported by use of strap
hangers or their equivalent. Vent supports should be
placed a maximum of 15 feet apart and as required to pre-
vent sagging. The vent connectors shall be pitched 1/4" per
foot upwards towards the chimney or vent termination.
INSTALLING VENT DAMPER
The vent damper must be mounted directly on top of the
draft diverter.The vent outlet extension must be installed
between the damper and the outlet to allow the damper
plate to open and close.
Locate the motor on the right side and position the cable so
that it does not touch the metal surface of the draft diverter
(see Figure 2.4). If necessary, turn angle connector on
vent damper upward until cable clears; tighten locknut to
secure.The direction of the flow arrow imprinted on the vent
damper must point upward. The damper position indicator,
which is located on the side of the vent damper opposite
the motor, must be visible.
CAUTION: A minimum of 6" between vent damper and
combustible materials must be maintained. The vent
damper must be accessible for servicing and checking
position indicator.
Remove hairpin shipping clip which holds damper blade in
closed position and observe that damper blade rotates
slowly to open position. Do not force it closed as it may
damage the gear train and void the warranty. The blade
should move freely and without obstruction.
Secure the vent damper housing to the draft diverter outlet
with sheet metal screws or pop rivets. Refer to Figure 2.5
for fastener locations. Install flue pipe over top of vent
damper and secure to damper housing with sheet metal
screws or pop rivets.
Attach vent damper cable to cable clamp on boiler front
panel and join the Molex connector (see Figures 2.4 &
2.4A).
TRANSFORMER
PILOT
CONTROL
VENT DAMPER
PRESSURE
CONTROL
THERMOSTAT
CONNECTION
DK. BLUE
SPILL
SWITCH
CABLE
BRACKET
THERMOSTAT
CONNECTION
MOLEX
CONNECTORS
STEP 4: VENTING BOILER
DANGER: Draft diverter, vent outlet and vent
damper as supplied must not be altered in any way,
as proper boiler operation would be jeopardized.
Flame rollout, fire or carbon monoxide poisoning
will result.
DANGER: Only the boiler may be served by the
vent damper. Do not attempt to use it to vent an
additional appliance. This will cause fire or carbon
monoxide poisoning.
FIGURE 2.4: VENT DAMPER INSTALLATION
FOR INTERMITTENT PILOT
TRANSFORMER
GAS
VALVE
VENT DAMPER
PRESSURE
CONTROL
THERMOSTAT
CONNECTION
DK. BLUE
SPILL
SWITCH
CABLE
BRACKET
THERMOSTAT
CONNECTION
MOLEX
CONNECTORS
FIGURE 2.4: VENT DAMPER INSTALLATION
FOR STANDING PILOT
Содержание VSB2-605
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