Section 11 - Maintenance; System Maintenance; Maintenance Notes; Burner - Bradford White Brute MagnaTech BMGV1600 Installation And Operation Instructions Manual

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Section 11
MAINTENANCE
11.1

System Maintenance

Do the following once a year:
1. Lubricate all the pumps in the system, per the
instructions on the pump.
2. Inspect the venting system for obstruction
or leakage. Periodically clean the screens in
the vent terminal and combustion air terminal
(when used).
4. Keep the area around the unit clear and free
of combustible materials, gasoline, or other
5. If the unit 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 year. Float type low water
7. Inspect and clean the condensate collection,
8. When a means is provided to neutralize
condensate, ensure that the condensate is
being neutralized properly.
using brushes or vacuums, if necessary.
combustion. Determine the cause of the
problem and correct it.
10. Inspect the vent system and air intake system,
and ensure that all joints are sealed properly.
If any joints need to be resealed, completely
remove the existing sealing material, and clean
with alcohol. Apply new sealing material, and
reassemble.
11. Once a year, the items listed below should be
a. Appliance control
b. Automatic gas valve
d. Pressure switches
e. Blower
f. Pump
Do the following once every six months:
1. If a strainer is employed in a pressure reducing
valve or the piping, clean it every six months.
g. Flow switch
h. Low water cutoff
i. Burner
j. Heat exchanger
k. Ignitor
WARNING
Disconnect all power to the unit before
attempting any service procedures. Contact with
electricity can result in severe injury or death.
11.2

Maintenance Notes

Use only genuine Manufacturer replacement parts.
When servicing the controls, label all wires be-
fore disconnecting them. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
The gas and electric controls in the unit are
engineered for long life and dependable operation,
but the safety of the equipment depends on their
proper functioning.

11.2.1 Burner

Check the burner for debris. Remove the blower
assembly to access the blower adapter plate.
Remove the 4 bolts connecting the blower to the
arm. Remove the 5blower adapter plate to access
the burner. Pull the burner up and out. Clean the
burner, if necessary, by blowing compressed air
from the outside of the burner into the center of the
burner, and wipe the inside of the burner clean with
glass cleaner. A dirty burner may be an indication
of improper combustion or dirty combustion air.
Determine the cause of the problem, and correct it. If
the burner gaskets are damaged, replace them when
replacing the burner.

11.2.2 Modulating Gas Valve/ Venturi

The modulating gas valve consists of a valve body
negative pressure regulator. It provides the air/gas
ratio control in combination with the fuel/air mixer
to the unit. It is designed to operate with gas supply
pressure between 4 and 13 inches w.c.. To remove
the gas valve or fuel/air mixer, shut off the power
supply to the boiler. Turn off all manual gas valves
connecting the boiler to the main gas supply line.
Remove the front doors of the boiler, and the top
panels, to gain access to the gas valve and fuel/air
the gas manifold pipe to the gas valve. Remove the
electrical connections to the gas valve. Remove
blower. This allows the entire gas valve and fuel/air
mixer assembly to be removed as an assembly to
facilitate inspection and cleaning.
Caution