Roberts Gorden 225 250 Manual Do Utilizador

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COMBAT
®
 UHA U
NIT
 H
EATER
 I
NSTALLATION
 O
PERATION
 
AND
 S
ERVICE
 M
ANUAL
26 
Burner Observation 
Window
Make sure it is clean and free of cracks or holes.
Clean and replace as required.
Flue Blower Scroll, Wheel 
and Motor
Compressed air or a vacuum cleaner may be used to clean dust and dirt.
Inshot Burners and 
Orifices
Clear of obstructions (even spider webs will cause problems).
Carefully remove any dust and debris from the burner.
Direct-Spark Igniter
Replace if there are cracked ceramics, excessive carbon residue, or erosion 
of the electrode.
The electrode gap should be 1/8" (3.2 mm).
Thermostat
There should be no exposed wire or damage to the device or wiring.
See Page 19, Section 10
.
Suspension Points
Make sure the heater is hanging securely. 
Look for signs of wear on the suspension materials or ceiling.
See Page 6, Figure 2
.
Silicone Tubing
Ensure tight, secure fit on all pressure fittings at pressure switch, 
burner partition, and blower outlet.
Gas Valve
Verify that cap covering pressure regulator adjustment screw is secure and 
has not been tampered with.
Verify all wiring connections.
Condensate Drain
(when installed)
Flush drain and clear any obstructions.