Bananza UHD 150 series Operation Manual Download

Page: 43 / 68

SECTION 13: S

ERVICING

35 of 55

SECTION 13: SERVICING

13.1 Servicing Instructions

After start-up, the heater will require maintenance to

be carried out, at a minimum, annually. If the heater
is used in a dirty or dusty area, more frequent
maintenance may be required.

IMPORTANT:

Prior to any maintenance or service of

the heater, shut off, lockout and tagout the electrical
disconnect and gas valve that supplies the unit in
accordance with OSHA regulations. After any
maintenance or repair work, always test fire the
heater in accordance with the start-up instructions

on Page 28, Section 11

through Page 32, Section

11.7

to ensure all safety systems are in working order

before leaving the heater to operate. Minor faults
may be traced by using the troubleshooting charts

on Page 38, Section 14

through Page 42, Section

14.5

IMPORTANT:

Check all gas pipes and pipe joints to

ensure there are no cracks or gas leaks. Any cracks
in the pipes or pipe joints must be repaired.

IMPORTANT:

Inspect all suspended components

and hardware. Ensure that they are in good
condition, properly tightened, and corrosion free.

13.2 Burner Maintenance
13.2.1 Burner Maintenance for Models 150-400

1. Open the hinged door via tooled access and

remove from the hinges. Set door aside.

See

Page 44, Section 15.2

2. Remove the filler panel (10 screws) to fully

access the burner assembly.

See Page 44,

Section 15.2.1

3. Remove burner assembly from cabinet via

screws around the burner assembly (quantity
will vary).

See Page 44, Section 15.2.1

Electrode and flame probe should remain
attached.

4. Remove manifold from burner assembly via

four screws, two on top and two on bottom.

See

Page 45, Section 15.2.2

. Clean any deposits

from the main burner which may have formed in
the injectors or venturi of the burner.

5. Check condition of ignition electrode and flame

probe. Clean off any deposits which may have
formed, check condition of ceramic insulators.
Replace as required.

See Page 46, Section

15.3

13.3 Heat Exchanger Maintenance

The heat exchanger will remain clean unless a

problem has developed with combustion. Inspect the
heat exchanger. Look for signs of overheating at the
front of the tubes which may indicate burner over
firing or persistently low air flows.

13.4 Gas Valve Maintenance

No regular maintenance is required on this device.

To change gas control valves,

See Page 43, Section

15.1

Do not repair or disassemble gas valve.

Replace faulty gas valves with replacement parts
sold and supplied by Bananza.

13.5 Flue Blower

The flue blower should not require maintenance.

However, if the air pressure switch is causing burner
lockout, then remove the flue blower from the vent
box by unscrewing the screws at the mounting plate.
Screw quantity will vary by model size. Remove the
screws attaching the mounting plate to the fan inlet.

See Page 47, Section 15.5

through Page 48,

Section 15.6

. Ensure that the fan is free to run and

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.