Complete Assembly Removal; Pilot Assembly Removal Only; Pilot Assembly Servicing Only - Osburn Designer DV36 Installation And Operation Instructions Manual

4.5.1 Complete Assembly Removal

1. With the burner and logset removed from the unit, loosen off and remove the ¾" hex nut which fixes
the orifice on the inside of the orifice well.
2. Remove the lower grille from the front of the unit by unhooking each of the two (2) springs and
removing one (1) of either the left or right pivot screws (see Figure 5.3).
3. Remove the bottom fireplace trim by first unscrewing the two (2) 5/16" screws on each side. Push the
trim away and towards the back of the unit so as to disengage it from the fastening clips, and then pull
the trim out of unit (see Figures 5.3 and 5.4).
4. Remove the control panel (see Figure 2.1) by removing the four (4) Phillips screws which secure it in
place, and disconnecting the thermostat and ignitor connections from behind the panel. Move the panel
aside.
5. Remove the six (6) 5/16 hex head screws, which hold the pilot well to the underside of the bottom of
the combustion chamber.
6. Remove the four (4) 5/16" hex head screws from the valve mounting brackets, detaching the
brackets(and valve) from the valve heat shield. The valve and pilot assemblies can now be removed as
a whole.
he pilot gas line is fragile. To avoid possible breakage, care should be taken not to
P N : T
LEASE OTE
overwork it and cause stress hardening.
7. Re-assemble in the reverse order.

4.5.2 Pilot Assembly Removal Only

1. Follow steps 1-4 above.
2. Remove the two (2) 5/16" hex head screws attaching the pilot to the pilot well.
3. Carefully lift the pilot upward to avoid damaging the 1/8" pilot gas line.
4. Disconnect the pilot gas line, thermopile wire connections, and thermocouple junction from the gas
valve. The pilot assembly may now be completely pulled from the unit.

4.5.3 Pilot Assembly Servicing Only

1. Remove the two (2) 5/16" hex head screws attaching the pilot to the pilot well.
2. Carefully lift the pilot upward to avoid damaging the 1/8" pilot gas line. Some of the various pilot
components may now be serviced.
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