Roberts Gorden Combat UHD-Series, Installation, Operation & Service Manual

Page: 43 / 70

SECTION 13: S
ERVICING
35 of 57
Cabinet Exterior After installation, to u ch u p scratches. Periodic painting sho u ld be done there-
after as req u ired. Warning labels and logo labels sho u ld be legible and acc u -
rate. Please contact Roberts-Gordon LLC or ROBERTS GORDON
®
independent distrib u tor if yo u need replacement w arning labels or logo labels.
See Page 2, Figure 1 through Page 4, Figure 3 .
Combustion Air Intake
Pipe Intake pipe and inlet m u st be intact. Look for obstr u ctions, cracks on the pipe,
gaps in the sealed areas or corrosion.
The area m u st be free of dirt and d u st.
Clean and reinstall as req u ired.
See Page 18, Section 8 .
Heat Exchan g er Make s u re there are no cracks.
Make s u re there is no sagging, bending or distortion.
Clean or replace as req u ired.
Gas Line and Shut-off
Valves Check for gas leaks.
See Page 19, Section 9 .
Burner Observation
Window Make s u re it is clean and free of cracks or holes.
Clean and replace as req u ired.
Flue Blower Scroll, Wheel
and Motor Compressed air or a vac uu m cleaner may be u sed to clean d u st and dirt.
Inshot Burners and
Orifices Clear obstr u ctions (even spider w ebs w ill ca u se problems).
Caref u lly remove any d u st and debris from the b u rner.
Direct-Spark I g niter Replace if there are cracked ceramics, excessive carbon resid u e, or erosion
of the electrode.
The electrode gap sho u ld be 1/8" (3.2 mm).
Thermostat There sho u ld be no exposed w ire or damage to the device or w iring.
See Page 21, Section 10 .
Suspension Points Make s u re the heater is hanging sec u rely.
Look for signs of w ear on the s u spension materials or ceiling.
See Page 11, Figure 6 .
Silicone Tubin g Ens u re tight, sec u re fit on all press u re fittings at press u re s w itch and vent box.
Gas Valve V erify that cap covering press u re reg u lator adj u stment scre w is sec u re and
has not been tampered w ith.
V erify all w iring connections.
Condensate Drain
(when installed) Fl u sh drain and clear any obstr u ctions.