Page 38 | ΒΡΑΔΦΟΡΔ ΩΗΙΤΕ ΧΟΡΠ. |
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(c)Open gas shutoff valve. Restart the appliance. The ignition sequence will start again and the burner will start. The appliance will return to its previous mode of operation.
Caution
Should any odor of gas be detected, or if the gas burner does not appear to be functioning in a normal manner, CLOSE MAIN SHUTOFF VALVE. Do not shut off switch. Contact your heating contractor, gas company, or factory representative.
Gas Type | Air Orifice | Gas Orifice |
| Differential | Differential |
Natural | 4.0 to 4.5" W.C. | 4.0 to 4.5" W.C. |
| (1.0 to 1.1kPa) | (1.0 to 1.1kPa) |
Propane | 4.5 to 5.0" W.C. | 4.5 to 5.0" W.C. |
| (1.1 to 1.2kPa) | (1.1 to 1.2kPa) |
Note: Long runs of vent or combustion air piping may reduce the air and gas differential pressures. This is acceptable, as long as the air and gas pressure differentials are within 0.1" (0.025kPa) w.c. of each other.
Table 7. Air and Gas Orifice Differentials at Full Fire.
6.3 Shutting Down the Brute Magnum
1.Switch off the main electrical disconnect switch.
2.Close all manual gas valves.
3.If freezing is anticipated, drain the Brute Magnum and be sure to also protect building piping from freezing.
This step to be performed by a qualified service person.
6.4To Restart the Brute Magnum
If drained, follow Section 6.1 in this manual
for proper filling and purging.
1.Switch off the main electrical disconnect switch.
2.Close all manual gas valves.
3.WAIT FIVE (5) MINUTES.
4.Set the aquastat or thermostat to its lowest setting.
5.Open all manual gas valves.
6.Reset all safety switches (pressure switch, manual reset high limit, etc).
7.Set the temperature controller to the desired temperature setting and switch on electrical power.
8.Burner will go through a prepurge period and ignitor
Section 7
MAINTENANCE
WARNING
Disconnect all power to the appliance before attempting any service to the appliance. Contact with electricity can result in severe injury or death.
7.1 System Maintenance
1.Lubricate the system
2.If a strainer is employed in a pressure reducing valve or the piping, clean it every six months.
3.Inspect the venting system for obstruction or leakage at least once a year. Periodically clean the screens in the vent terminal and combustion air terminal (when used).
4.Keep the appliance area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.
5.If the appliance is not going to be used for extended periods in locations where freezing normally occurs, it should be isolated from the system and completely drained of all water.
6.Low water cutoffs, if installed, should be checked every 6 months. Float type low water cutoffs should be flushed periodically.
7.Inspect and clean the condensate collection and disposal system yearly.
8.When a means is provided to neutralize condensate, ensure that the condensate is being neutralized properly.
9.Inspect flue passages, and clean with brushes/ vacuums, if necessary. Sooting in flue passages indicates improper combustion. Determine the cause and correct.
10.Inspect the vent system and air intake system, and ensure that all joints are sealed properly. If joints need to be resealed, completely remove existing sealing material, and clean with alcohol. Apply new sealing material, and
7.2 Appliance Maintenance and
Component Description
Only genuine Bradford White replacement parts should be used.
Caution
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.
See Figures 27, 28 and 32 for location of gas train and control components.