Combat HVAC ELU 100, Руководство по установке и пусконаладке, Страница: 34 / 52

Unit Heater Installation, Commissioning, Operation and Service Manual
29 30
Combat Elite Unit Heater EL231117 Orig
Description
All Models
Part Number
90412100
These are hand reset devices to give further
protection against fan failure.
NOTE: To reset, the heat exchanger must be cool.
If the thermostat limit thermodisc persistently operates, there is a fault
which must be investigated by a contractor qualified in the installation
and service of gas-fired heating equipment.
13.3.2 Burner Lockout Reset Button
The red warning light on the side of the heater will illuminate when
the control has gone into lockout. This may be caused by flame failure.
Press the reset button below the hinged door on the heater, (See Page
38, for relocation details, or the remote reset if installed on site.
If control locks out do not make more than three attempts to restart the
heater. Dangerous fuel mixtures can build up. The fault must be traced
and repaired by a registered installer or service engineer.
13.4 Lighting Instructions
13.4.1 To Turn on the Heater
1. Ensure that the electrical and gas supplies to the heater are on.
Check that the onsite controls are “ON”.
Note:
The thermostat setting must be above the ambient temperature
for the heater to operate.
2. The green light will be on, and the automatic firing sequence will
begin as described on Page 28, Figure 15 The heater will now
operate automatically under the control of the on-site controls.
Following long shut down periods, the control may go into lockout.
See Page 29, Section 13.3.2.
13.4.2 To Turn the Heater Off
Set the installed remote controls to the “OFF” position.
The burner will turn off automatically.
The fan will continue to run for a few minutes.
To restart, turn the control used above to “ON”.
13.5 Simple Fault Finding
Some possible reasons for the heater not operating are:
1. Gas supply is not turned “ON”
2. Electricity supply is not turned “ON”
3. The time and/or temperature controls are not “ON”.
4. The thermostat limit thermodisc may have operated. This may have
been caused by an interruption of the electrical supply or failure of
the distribution fan.
If the thermostat limit thermodisc persistently operates, there is a
fault which must be investigated by a contractor qualified in the
installation and service of gas-fired heating equipment.
13.5.1 Simple Fault Finding (Burner Faults)
If the burner fails to ignite for any reason, it will go into lockout.
This will be indicated by the red light on the heater or at the
remote indicator (if fitted).
1. Press in and hold the lockout reset button for five seconds. If
a remote reset is not fitted a reset button is located below the
hinged door on the heater. See Page 38 for location detail.
Lockout should not occur during normal operation of the heater
and indicates there is a fault condition that must be corrected.
13.3 Common User Controls
13.3.1 Thermostat Limit Thermodisc