Bananza UHD 75, Installation, Operation & Service Manual

Page: 39 / 60

SECTION 13: S
ERVICING
31 of 47
SECTION 13: SERVICING
13.1 Servicin g Instructions
After start- u p, the heater w ill req u ire maintenance to
be carried o u t, at a minim u m, ann u ally. If the heater
is u sed in a dirty or d u sty area, more freq u ent
maintenance may be req u ired.
IMPORTANT: After any maintenance or repair w ork,
al w ays test fire the heater in accordance w ith the
start- u p instr u ctions on Page 26, Section 11 through
Page 28, Section 11.3.1 to ens u re all safety systems
are in w orking order before leaving the heater to
operate. Minor fa u lts may be traced by u sing the
tro u bleshooting charts on Page 34, Section 14
through Page 38, Section 14.5
.
IMPORTANT: Check all gas pipes and pipe joints to
ens u re there are no cracks or gas leaks. Any cracks
in the pipes or pipe joints m u st be repaired.
IMPORTANT: Inspect all s u spended components
and hard w are. Ens u re that they are in good
condition, properly tightened, and corrosion free.
13.2 Burner Maintenance
1. Open the door and remove the b u rner
compartment cover. See Page 40, Section
15.2 .
2. Clean any deposits from the main b u rner w hich
may have formed in the injectors or vent u ri of
the b u rner. See Page 40, Section 15.2.1 .
3. Remove the ignition electrode and flame probe.
Check condition of ignition electrode and flame
probe. Clean off any deposits
w hich may have
been formed, check condition of ceramic
ins u lators. Replace as req u ired. See Page 41,
Figure 15.3
.
13.3 Heat Exchan g er Maintenance
The heat exchanger w ill remain clean u nless a
problem has developed w ith comb u stion. Inspect the
heat exchanger. Look for signs of overheating at the
front t
u bes w hich may indicate b u rner over firing or
persistently lo w air flo w s.
13.4 Gas Valve Maintenance
No reg u lar maintenance is req u ired on this device.
To change gas control valves,
See Page 39, Section
15.1 .
Do not repair or disassemble g as valve.
Replace fa u lty gas valves w ith replacement parts
sold and s u pplied by Bananza.
13.5 Flue Blower
The fl u e blo w er sho u ld not req u ire maintenance.
Ho w ever, if the air press u re s w itch is ca u sing b u rner
locko u t, then remove the fl u e blo w er from the vent
box by u nscre w ing the three scre w s at the mo u nting
plate. Remove the fo u r scre w s attaching the
mo u nting plate to the fan inlet ( See Page 42,
Section 15.5
). Ens u re that the fan is free to r u n and
that the fan w heel is clean.
13.6 Ventin g and Air Intake Pipe
Inspect all venting and air intake pipe. Ens u re that
all seams are sealed and s u spension points sec u re.
Repair s u spension points if any part of the venting
or comb u stion air pipe is sagging. Check to make
s u re any ins u lation is not missing or in poor
condition. Replace as req u ired. Check all venting
and air intake components to ens u re they are in
good condition, gas tight and corrosion-free.
Cut/Pinch Hazard
Wear protective gear
during installation,
operation and service.
Edges are sharp.
WARNING
Failure to follow these instructions can result in death, electric shock, injury or property damage.
Burn Hazard
Allow heater to cool
before service.
Tubing may still be hot
after operation.
Explosion Hazard
Turn off gas supply to
heater before service.
DANGER
Electrical Shock Hazard
Disconnect electric
before service.
Heater must be
connected to a properly
grounded electrical
source.