Burnham 8H manual Heat Anticipator Settings

E.Alliance SL™ Water Heater (if used). May be used with Intermittent Circulation only.

Refer to Alliance SL™ Installation, Operating and Service Instructions for wiring, piping and additional information.

F.Vent Damper Sequence of Operation. See Figure 28 for schematic wiring diagram.

1.The Vent Damper is continuously powered at Terminal 1.

2.When there is a call for heat, the damper relay coil is energized through Terminal 5 if all limits ahead of the damper are satisfied.

3.The relay coil closes contacts which energize the damper motor, causing the damper to open.

4.When the damper blade reaches the fully open position, power is sent back to the ignition circuit

Table 9: Heat Anticipator Settings

through Terminal 2 and the damper motor is de- energized.

5.When the call for heat is satisfied, the damper relay coil is de-energized - closing contacts which energize the damper motor. This causes the damper to close. When the damper blade reaches the fully closed position, the damper motor is de-energized.

POWER FAILURE - The damper blade will stop in the position it was in when power failed. (Combustion can never take place unless the damper blade is in the fully open position).

G.Sequence of Operation and Wiring. Refer to Table 10 for the appropriate control system.

H.Optional Low-Water Cut-Off Wiring. See Figures 45 through 48.

Control System	Heat Anticipator Setting *
	Continuous Circulation	Intermittent Circulation
24V Standing Pilot	1.1	0.3
24V Electronic Ignition	USA: 0.9	0.3
	Canada: 1.2

* If room is heated above thermostat temperature setting, reduce heat anticipator setting by 0.1 or

0.2 amps. If boiler short cycles without room reaching desired temperature, increase heat anticipator by 0.1 or 0.2 amps.

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