Slant/Fin SENTINEL Installation And Operating Instructions Manual page 6

6
B. NOW, PROCEED AS FOLLOWS:
1. Separate the vent pipe directly on top of the draft hood or
diverter and place damper in position as shown in figures
1–6. The vent damper must be installed so that the damper
position indicator is in a visible location after installation. See
figure 4 for position indicator description. The arrow imprint
on the damper should point in direction of vent gas flow
(towards chimney). Re-assemble the vent piping. Be sure the
vent damper is well seated and fastened with 3 sheet metal
screws. Screws should be no longer than 13 mm (1/2 inch).
See figure 6.
2. Be sure that undersized vent pipe does not block movement
of damper vane (see figure 4).
3. Boilers that have a vent damper are factory wired with a male
plug.
a) Attach the flexible metallic conduit vent damper harness
to the right hand side of the jacket by passing the free end
of the harness through the 22 mm (7/8") diameter hole in
the top of the jacket, and using the BX connector at the
free end of the metallic conduit, fasten to jacket.
b) Connect "FEMALE PLUG" (free end of vent damper har-
ness) into "MALE PLUG" (see correct wiring diagram for
both continuous and intermittent pilots).
c) The other end of the flexible metal conduit has a small
molex plug and a 90 degree metal conduit connector.
Route the molex receptacle through the conduit bracket
on the vent damper. Place the harness receptacle into the
damper plug. Securely fasten the harness conduit con-
nector to the conduit bracket by carefully pushing it into
the hole in the bracket.
4. Restore electrical power and turn on gas supply.
C. AFTER INSTALLATION:
1. Operate system through two complete cycles to check for
opening and closing in proper sequence, and proper burner
operation. DAMPER MUST BE IN OPEN POSITION WHEN
BOILER MAIN BURNERS ARE OPERATING.
2. Perform installation checks as required by ANSI specification
Z21.66 or CSA B 149.1 latest edition for natural gas and
propane.
3. Replace the front cover of the boiler.
4. Check the troubleshooting section if problems arise..
D. THERMOSTAT HEAT
If the 24V room thermostat that controls the boiler has an ad -
justment heat anticipator, it must be set to the AMP draw of the
boiler. Connect the system to the thermostat and run the system.
Measure the current draw through the thermostat wires and set
anticipator accordingly. See "Appendix C."
ANTICIPATOR ADJUSTMENTS
Figure 4.
Figure 5.
TO PREVENT INTERFERENCE WITH DAMPER VANE
MOVEMENT, SCREWS OR POP RIVETS MUST NOT BE
LOCATED IN SHADED AREAS OF THE CASTING AND
MUST NOT EXCEED 13 MM (
Figure 6.
Sentinel
CAUTION
1 / ") IN LENGTH.
2