Page No 38 of 52 Reznor, Photon, Installation Manual, EN 2024-01, D301310 Iss 5
MS
12. The tube inserts can now be accessed and
withdrawn from the tubes.
13. Refit replacement tube inserts, tube insert
spacer gaskets and chamber insulation
ensuring the chamber insulation is correctly
orientated, so the cut outs line up with the
burner probe position.
14. Confirm the tube inserts slot into the
corresponding recess in the front face of
the chamber insulation block and gently
pull them towards the chamber insulation.
Ensure there are no gaps between the
chamber insulation and tube inserts. Up
to three tube insert spacer gaskets may be
needed per tube insert.
15. Refit burner probes, ensuring probe
gaskets are replaced.
16. Refit in reverse order.
17. Follow start up and commissioning
procedure.
Replacement of burner probes
1. Open the access door on the side of the
unit.
2. Disconnect the spark and flame sensor
cables from the ignition transformer and
ignition controller
3. Remove the probe assembly access panel
via the 4 off 10mm retaining bolts on the
inside of the heater next to the ignition
control box.
4. The probe assembly can be seen on the left
hand side with the access panel removed.
5. Remove the 2 off 10mm retaining bolts
from the heat exchanger tabs.
6. Remove the probe assembly bracket.
Tube inserts
Chamber
front
insulation
Chamber
side
insulation
Tube insert
spacer gasket
Probe
cut outs
No gap
between
tube
insert and
chamber
insulation
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