Burnham Series 2B manual

Page 12

Heat Anticipator in Thermostat should be set to match the requirements of the control to which it is connected. See Table 4. If system tends to overheat above the thermostat's temperature setting, reduce heat anticipator setting by .1 or .2 amps. If system tends to short cycle without reaching desired room temperature, increase heat anticipator setting by .1 or .2 amps.

16.Install electric wiring in accordance with National Electric Code or the Canadian Electrical Code and local regulations. See Figures 11 through 16 for applicable wiring diagram. A separate electrical circuit must be run from the main electrical service with an over-current device/disconnect in the circuit. A service switch is recommended and may be required by some local jurisdictions. When installed, the boiler must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, and/or the CSA C22.1 Electrical Code, if an external electrical source is utilized.

For zone valve wiring, a separate 24V transformer is required rather than attempting to use the boiler mounted control. Consult zone valve manufacturer for assistance.

17. Vent Damper Sequence of Operation. See Figure 9.

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

B.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.

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

D.When the damper blade reaches the fully open position, power is sent back to the ignition circuit through Terminal 2 and the damper motor is de- energized.

E.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.)

Figure 9: Vent Damper Schematic Wiring Diagram

CAUTION

This boiler contains controls which may cause the boiler to shut down and not restart without service. If damage due to frozen pipes is a possibility, the heating system should not be left unattended in cold weath- er; or appropriate safeguards and alarms should be installed on the heating system to prevent damage if the boiler is inoperative.

CAUTION

Avoid operating this boiler in an environment where saw dust, loose insulation fibers, dry wall dust, etc. are present. If boiler is operated under these conditions, the burner interior and ports must be cleaned and inspected daily to insure proper operation.

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Contents Series 2 model B Price $3.00Table of Contents Weight Do not drop boiler. Do not bump boiler jacket against floor ClearancesMinimum Clearances Equivalent Length of Fittings Specific Gravity Correction Factors for Natural GasBoiler Piping Page Page Do not use one vent damper to control two heating appliances Page Wiring Diagrams and Heat Anticipator Settings Page Safety Shutdown Sequence of Operation Page Sequence of Operation Normal Operation Wiring Schematic, Zone Valves II. Operating Instructions Top View of VR Gas Valves Instructions to PUT the Boiler in Operation Yellow LED Flame CodesGreen LED Status Codes Lighting Instructions Check GAS Input Rate to Boiler Check Pilot Burner FlameCheck Ignition System Safety SHUT-OFF Device Combustion Chamber BURN-OFFIII. Trouble Shooting IV. Service Burner 40mm Burner Pilot Burner LocationAvoid Breathing Fiber Particulates and Dust Repair Parts Section Assembly Gravity Circulation OnlySection Assembly and Canopy Group Canopy GroupThis page Left Intentionally Blank Base Assembly USS Manifold and Main Burners Inch Main Burners Manifold and Main Burners 1 Inch Main Burners Only Manifold and Main Burners 40mm Main Burners MM Main Burners Only4B MM Main Burner, Electronic Ignition Only MM Main Burners Only 4C MM Main Burner Manifold 4D MM Main Burner, Natural Gas, 2001-5000 Ft. USA Only4D MM Main Burner, LP Gas, 2001-5000 Ft. USA Only 4D MM Main Burner, Natural Gas, 5001-9000 Ft. USA OnlyBurner Only 40mm Burner Only Pilot Burner, Honeywell Q327A1147 Pilot Burner, Honeywell Q348A1002 Jacket Assembly, Complete Jacket AssemblyPage Jacket Vestibule Panel Water Trim Limit Control Transformer/Relay Assembly Intermittent Circulation Only Flame Rollout SwitchBlocked Vent Switch Transformer Continuous and Gravity Circulation OnlyDraft Hood Carton Vent DamperVent Reducer Service Record Service Record Service Record Wiring of Typical Lwco Lwco LocationLimited Warranty
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