Trane Gas Unit Heaters Wartungshandbuch

30

GBNE-SVX001A-EN

2.  Turn off the manual gas valve and electrical power to the 

unit heater.

3.  To clean or replace the burners, remove burner cover. 

Remove top strip from above burners. Lift burners up 
and pull away from manifold to remove.

4.  With the burners removed, wire brush the inside surfaces 

of the heat exchanger.

5.  Remove any dirt, dust, or other foreign matter from the 

burners using a wire brush and/or compressed air. 

6.  Reassemble the unit heater by replacing all parts in 

reverse order.

7.  Check the burner adjustment.
8.  Check all gas control valves and pipe connections for leaks.
9.  Check the operation of the automatic gas valve by 

lowering the setting of the thermostat, stopping the 
operation of the gas duct furnace. The gas valve should 
close tightly, completely extinguishing the flame on the 
burners.

10.  Inspect and service motor/fan assembly. To maintain 

efficient air flow, inspect and clean the fan blades and 
guard to prevent buildup of foreign matter.

11.  Check motor lubrication. If oiling is required, add 1 or 2 

drops of electric motor oil as follows:
a.  Light Duty - After 3 years or 25,000 hours of 

operation.

b.  Average Duty - Annually after 3 years or 8,000 hours 

of operation.

c.  Heavy Duty - Annually after 1 year or at least 1500 

hours of operation.

12.  Check and test the operational functions of all safety 

devices supplied with your unit.

All Maintenance/Service information should be recorded 
accordingly on the Inspection Sheet provided in this manual.

To check gas tightness of the safety shut-off valves, turn off 
the manual valve upstream of the appliance combination 
control. Remove the 1/8 inch pipe plug on the inlet side 
of the combination control and connect a manometer to 
that tapping. Turn the manual valve on to apply pressure 
to the combination control. Note the pressure reading on 
the manometer, then turn the valve off. A loss of pressure 
indicates a leak. If a leak is detected, use a soap solution 
to check all threaded connections. If no leak is found, 
combination control is faulty and must be replaced before 
putting appliance back in service.

Should maintenance be required, perform the following 
inspection and service routine:

1.  Inspect the area near the unit to be sure that there is 

no combustible material located within the minimum 
clearance requirements listed in this manual.