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VIII. Electrical
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A.
General. Install wiring and ground boiler in accordance
with requirements of authority having jurisdiction, or in
absence of such requirements the National Electrical
Code, ANSI/NFPA 70 and/or CSA C22.1 Electrical
Code.
B.
Wire Vent Damper (if used).
1. Steam or Water with gravity circulation or tankless
heater.
a. Remove one (1) 7/8" knockout from junction
box. Carefully remove transformer - avoid undue
strain on wires.
b. Install Vent Damper Harness into top of junction
box.
c. Remove factory installed jumper plug (if so
equipped) from Vent Damper Receptacle. Plug
Vent Damper Harness into Vent Damper
Receptacle. See Figure 31.
Figure 31: Vent Damper Connection Detail
d. Install cable clamp around flexible Vent Damper
Harness. Attach to jacket top panel. See Figure
32.
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Figure 32: Vent Damper Harness to Junction Box
2. Water with intermittent circulation and without
tankless heater.
a. Remove 7/8" knockout and cover from limit
b. Install Vent Damper Harness into top of limit.
c. Remove factory installed jumper plug from Vent
d. Install cable clamp around flexible Vent Damper
3. Note: After vent damper is installed and operated
through one (1) cycle, the control circuit will
operate only when vent damper is in control circuit.
C.
Install thermostat. Locate on inside wall
approximately 4 feet above floor. Do not install on
outside wall, near fireplace, or where influenced by
drafts or restricted air flow, hot or cold pipes, lighting
fixtures, television, or sunlight. Allow free air
movement by avoiding placement of furniture near
thermostat.
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control.
Damper Receptacle. Plug Vent Damper Harness
into Vent Damper Receptacle. See Figure 31.
Harness. Attach to jacket top panel. See Figure
33.
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27
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