75-511.13
4
Figure 4.2 - Pilot Assemblies & Orifices
Figure 4.3 - Pilot Assembly
Figure 4.1 - Burner Assembly
Figure 4.4 - Burner Orifices and Air Shutters
Remove the side access panel to expose the furnace burner
assembly.
For DJE, IJE, DHE, and IHE carefully thread the pilot tube and
the thermocouple leads through the combustion air slot (at the
rear of the unit) into the burner box so they may be drawn out
with the burner.
Slide the complete burner assembly out of the burner box. The
complete burner and pilot assembly are now free for service
(see Fig. 4.1).
To replace the burner, follow the above steps in reverse order,
being careful to align the burner assembly properly on the
alignment pins on the access panels on both sides of the duct
furnace (see Fig. 3.3).
4. Remove pilot gas tube at the pilot, and exchange pilot
orifice (see Figures 4.2 and 4.3) as follows:
•
For Robertshaw pilots, replace the pilot orifice stamped
N18 with the pilot orifice supplied in the conversion kit
stamped LP10.
•
For Honeywell pilots, replace the pilot orifice stamped
BCR-18 with the pilot orifice supplied in the conversion
kit stamped BBR - 11 or 12.
•
For PSE pilots, replace the pilot orifice stamped 018N
with the pilot orifice supplied in the conversion kit
stamped 012LP.
5. Verify that pilot is oriented to main burner as shown in
Fig. 4.3.
6. Exchange main burner orifice(s) and install air shutters
(see Figure 4.4). Check the orifice number stamped on
each orifice. Be sure that this number is the same number
indicated on the kit parts list for the kit being installed. (See
Table 5.1 or 5.2).
PILOT
ASSEMBLY
GAS VALVE
PILOT
BURNER
PILOT
ORIFICE
THERMOCOUPLE
MIXER
TUBES
MANIFOLD
AIR
SHUTTERS
PILOT
TUBE
BURNER
ASSEMBLY
THERMOCOUPLE
LEAD
PILOT BURNER ASSEMBLY
(standing pilot shown)
PILOT ORIFICE IDENTITY
NUMBER STAMPED HERE
(Natural Gas N18,
Propane Gas 10 LP)
PILOT ORIFICE IDENTITY
NUMBER STAMPED HERE
(Natural Gas BCR-18,
Propane Gas BBR-11 or 12)
PILOT TUBE WITH
COMPRESSION
SLEEVE AND NUT
Robertshaw Pilot Assembly
INSTALLATION
Honeywell Pilot Assembly
PSE Pilot Assembly
PILOT ORIFICE IDENTITY
NUMBER STAMPED HERE
(Natural Gas 018N,
Propane Gas 012 LP)
PILOT TUBE WITH
COMPRESSION
SLEEVE AND NUT
PILOT TUBE WITH
COMPRESSION
SLEEVE AND NUT
MAIN BURNER
ORIFICES
