RHC 8000 EN April 2019 D301207 Issue C
Page 19
The following checks should be carried out
before attempting to light the air heater.
• Ensure that the gas supply to the air
heater is turned ON;
• Ensure that the electrical supply to the
air heater is switched ON
• If fitted ensure that a time switch is set
to an ON period
• Set room thermostat to call for heat.
e.g. above room ambient temperature
(see air handling system instructions)
• Ensure the NOx reducing x-baffle is
fitted flush into each burner tube
• Adjust the room thermostat to
the required operating comfort
temperature. The air heater will now
start automatically when the room
thermostat calls for heat.
Note: If the air heater will not start on
initial start-up, the ignition controller
may be in lockout position and require
resetting. This may occur especially if
the appliance has been on stand-by for
a prolonged period.
5.3.2 To turn the air heater “OFF”
for short periods
Adjust the room thermostat to its lowest
setting or ‘OFF’. The fan will continue to
run to cool the heater and then switch OFF
automatically (or follow the instructions of
the air handler).
5.3.3 To turn the air heater “OFF”
for long periods
Adjust the room thermostat to OFF or its
lowest setting. When the fan has stopped,
turn OFF the gas supply and then switch
OFF the electricity supply to the air heater
(or follow the instructions of the air
handler).
5.4 Air Heater Gas Pipework
The soundness of the air heater pipe
work has been checked prior to leaving
the factory. However during installation,
connections may have been loosened.
Check the soundness of the appliance pipe
work using a soapy solution. If any leaks are
found they must be rectified immediately.
Caution: Never use a flame for
testing for gas soundness
5.5 Adjustments
2a/2b
1
3
4
5
7
8
Legend
1. Shut-off solenoid valve EV1
2a. Adjustment low fire
2b. Adjustment high fire
3. Inlet pressure test point (not visible on
figure 9)
4. Outlet pressure test point (not visible on
figure 9)
5. Shut-off solenoid valve EV2
6. Pilot outlet
7. Main gas outlet
8. Holes (M5) for fixing flange
CAUTION
Figure 9 : HONEYWELL gas valve
6
Summary of Contents for Reznor RHC DJL 8000
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