Cleaning And Maintenance - Procom SSU320RHN-GB Owner's Manual

INSPECTING FLAME PATTERN
Check pilot flame pattern and burner
flame patterns often.
PILOT FLAME PATTERN
Figure 17 shows a correct pilot flame
pattern. Figure 18 shows an incorrect
pilot flame pattern. The incorrect pilot
flame is not touching the thermocouple.
This will cause the thermocouple to cool.
When the thermocouple cools, the heat -
er will shut down. If pilot flame pattern is
incorrect, as shown in Figure 18.
Turn heater off (see T O T URN
O FF G AS TO A PPLIANCE )
See Troubleshooting (Section,
page 17).
Figure 17 - Correct Pilot Flame
Pattern
Figure 18 - Incorrect Pilot Flame
Pattern
BURNER FLAME PATTERN
Figure 19 shows a correct burner flame
pattern. Figure 20 shows an incorrect
burner flame pattern. If burner flame is
incorrect:
Turn heater off (see T O T URN O FF
G AS TO A PPLIANCE )
See Troubleshooting (Section,
page 17).
Figure 19 - Correct Flame Pattern
with heater set to High Flame
Figure 20 - Incorrect Flame Pattern
with heater set to High Flame
CLEANING AND
MAINTENANCE
WARNING: Disconnect power
before attempting any maintenance
or cleaning to reduce the risk of fire ,
electric shook or personal injury. Turn
off heater and let cool before cleaning.
WARNING: Failure to keep pri -
mary/air openings of burners clean
may result in sooting and property
damage.
CAUTION: Label all wires prior to
disconnection when servicing controls.
Wiring errors can cause improper and
dangerous operation. Verify proper
operation after servicing.
CAUTION: You must keep control
areas, burner, and circulating air pas -
sageways of heater clean. Inspect
these areas of heater before each
use. Have heater inspected yearly by
a qualified service person. Heater may
need more frequent cleaning due to
excessive lint from carpeting, bedding
material, pet hair, etc.
14
DISCONNECT WIRING OR
CONTROL MODULE
1. Remove screws from the rear control
panel, take out thermostat sensing
bulb from the clip, then disconnect
the wires from control module.
2. Remove two screws and hex nuts,
securing control module. When
installing, reverse the steps above.
(See Figure 21 and Figure 25).
Figure 21 - Control Module Access
DISCONNECT FAN
1. Remove screws from the fan bracket
panel, pull the fan bracket panel out
to remove. Disconnect two wires from
fan Thermostat Switch.
2. Mark or tag each wire removed for its
exact reconnection. Remove the four
screws from the fan. When installing,
reverse the steps above. (See Figure
22 and Figure 25)
Figure 22 - Fan Access
CLEANING BURNER INJECTOR
HOLDER AND PILOT AIR INLET
HOLE
We recommend that you clean the unit
every 2,500 hours of operation or every
three months.
The primary air inlet holes allow the
proper amount of air to mix with the gas.
This provides a clean burning flame.
Keep these holes clear of dust, dirt,
lint, and pet hair. Clean these air inlet
holes prior to each heating season.
Blocked air holes will create soot. We
recommend that you clean the unit every
three months during operation and have
heater inspected yearly by a qualified