Slant/Fin SENTINEL SE-70 Installation And Operating Instructions Manual page 6

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C. 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 har-
ness receptacle into the damper plug. Securely fas-
ten the harness conduit connector to the conduit
bracket by carefully pushing it into the hole in the
bracket.
4. Restore electrical power and turn on gas supply.
D. 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 spec-
ification Z21.66 or CSA B149.1-00 for natural gas and
propane.
3. Replace the front cover of the boiler.
4. Check the troubleshooting section if problems arise..
E. THERMOSTAT HEAT ANTICIPATOR ADJUSTMENTS
If the 24V room thermostat that controls the boiler has an
adjustment 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."
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
/ ") IN LENGTH.
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