Reznor, RHC21 8000 Installation EN May 2021 D301319 Issue 0 Page No 43 of 52
NO
YES
NO
NO
YES
YES
PAGE 2
Does the burner
ignite after a purge
period?
Does the burner
spark?
CHECK:-
1. Gas supply turned on and purged
2. Supply pressure
3. Voltage supply to gas valve plug 230V AC / 50 Hz
during ignition
4. Ignition controller
5. Throttle positioning - see commissioning data table
6. Correct program key fitted
7. Gas valve
8. Integrity of appliance ground connection
9. Probe leads connected / integrity
10. Flame sensor probe clean
11. Probes not touching insulation
12. Flame signal (min. 1.0 μA)
13. Air inlet / flue pipe for obstructions
CHECK:-
1. Spark gap correct - see maintenance section
2. Check ignition probes / leads for damage
3. Spark probe not touching insulation
4. Voltage supply to ignition transformer 230V
AC / 50 Hz during ignition
5. Ignition transformer
6. Ignition controller
Does the burner
stay on after
stabilisation time?
CHECK:-
1. Heat demand still present
2. Gas supply purged
3. Supply pressure
4. Throttle positioning - see commissioning data table
5. Flame sensor probe corroded
6. Flame signal (min. 1.0 μA)
7. Flame sensor probe bent
8. Integrity of appliance ground connection
9. Probe leads connected / integrity
10. Ignition controller
11. Integrity of chamber insulation
NOTE
Presence of a flame
is indicated by
the green lamp
illuminating
NOTE
Presence of a flame
is indicated by
the green lamp
illuminating
Does the burner
remain running after
several minutes?
Does the burner
attempt to relight?
CHECK:-
1. Throttle positioning - see commissiong data table
2. Flame sensor probe corroded
3. Flame signal (min. 1.0 μA)
4. Flame sensor probe bent
5. Air inlet / flue pipe for obstructions
6. Integrity of chamber insulation
CHECK:-
1. LED status light flash codes
2. LC3 safety thermostat reset switch
3. LC3 safety thermostat temperature not
exceeding 96°C
4. Lockout reset switch
5. Heat demand still present
END
If the heater still fails to operate correctly,
contact your local representative
NOTE
Presence of a flame
is indicated by
the green lamp
illuminating
YES
YES
NO
NO
YES
