SECTION 12: USER INSTRUCTIONS
SECTION 12: USER INSTRUCTIONS
DANGER |
| WARNING |
| |
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. | ||||
|
| operation and service. | ||
Heater must be |
| Tubing may still be hot | ||
|
| |||
connected to a properly |
| after operation. | Edges are sharp. | |
grounded electrical |
|
|
| |
source. |
|
|
|
Failure to follow these instructions can result in death, electric shock, injury or property damage.
The UHD[X][S] Series heaters are fully automatic and operate from the external controls fitted on site. The only user control at the heater is the Manual Reset Limit Switch - See Page 30, Section 12.3. See Page 41, Figure 15.3 for Manual Reset Limit Switch location inside control housing.
12.1 Heater Operation
When the heater has been switched on by the thermostat installed on site, the main burner will automatically turn on.
The burner control box will control the safe ignition of the flame.
All heaters require a constant gas and electricity supply which must not be interrupted during the normal operation of this heater.
12.2Common User Controls
12.2.1 Manual Reset Limit Switch
WARNING
Explosion Hazard
Do not make more than one attempt to restart the heater if manual reset limit switch locks out.
The vent or heat exchanger may be blocked.
The fault must be traced and repaired.
Failure to follow these instructions can result in death, injury or property damage.
The limit thermostat is located inside the access door of the heater. See Page 41, Section 15.3. This control protects against excessive heat
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