SECTION 13: SERVICING
SECTION 13: SERVICING
DANGER |
| WARNING |
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Electrical Shock Hazard | Explosion Hazard | Burn Hazard | Cut/Pinch Hazard | |
Disconnect electric | Turn off gas supply to | Allow heater to cool | Wear protective gear | |
heater before service. | before service. | during installation, | ||
before service. | ||||
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| operation and service. | ||
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| Tubing may still be hot | ||
More than one |
| Edges are sharp. | ||
disconnect switch may |
| after operation. | ||
be required to |
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disconnect electric from |
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heater. |
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Heater must be |
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connected to a properly |
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grounded electrical |
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source. |
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Failure to follow these instructions can result in death, electric shock, injury or property damage.
13.1 Servicing Instructions
After commissioning, the heater will require maintenance to be carried out annually. If the heater is used in a dirty or dusty area, more frequent maintenance may be necessary.
Installation, service and annual inspection of heater must be done by a contractor qualified
in the installation and service of
using the troubleshooting charts on Page 31, Section 15 through Page 35, Section 15.5.
NOTE 2: 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.
NOTE 3: Inspect all suspended components and hardware. Insure that they are in good condition, properly tightened, and corrosion free.
WARNING
Severe Injury Hazard
Turn off gas and electrical supply before service.
Fan can start automatically at any time.
Failure to follow these instructions can result in severe injury or product damage.
NOTE 1: After any maintenance or repair work always test fire the heater in accordance with the commissioning instructions on Page 21, Section 11 through Page 24, Section 11.9 to ensure all safety systems are in working order before leaving the heater to operate. Minor faults may be traced by
13.2 Burner Maintenance
1.Open the hinged door and remove the burner compartment cover. See Page 37, Section 16.2.
2.Clean any deposits from the main burner which may have formed in the injectors or venturi of the burner. See Page 37, Section 16.2.
3.Remove the ignition electrode and flame probe. Check condition of ignition electrode and flame probe. Clean off any deposits which may have been formed, check condition of ceramic insulators. Replace as necessary.
13.3 Fan/Motor Assembly Maintenance
The main fan bearings are permanently sealed and do not need lubrication. Before cleaning, turn off gas and electrical supply. Remove the fan(s) and use a small brush or duster to clean the fan blades from each side. Replace fan(s) when done.
13.4 Heat Exchanger Maintenance
The heat exchanger will remain clean unless a problem has developed with combustion. Inspect the
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