Gas Conversion Guide
Table Of Contents
- GAS CONVERSION KIT INSTALLATION FOR UNIT HEATERS (MODELS UDBP AND UBX: STANDARD POWER VENT BLOWER TYPE, MODELS UDBS AND UBZ: SEPARATED-COMBUSTION BLOWER TYPE, MODELS UDAP AND UDX: STANDARD POWER VENT FAN TYPE, AND MODELS UDAS AND UDZ: SEPARATED-COMBUSTION FAN TYPE)
4
CP-UB-UD-GC (04-21) 1034364-A
Table 2. Propane to Natural Gas Conversion Kit Components
Unit
Size
Model
(Kit PN)
Component Description PN
Gas Valve
(Manufacturer’s PN)
All
Spring kit #394588 for single-stage valve VR8105, VR8205, or VR8305 98721
—
Tape Conversion 64391
Disk Natural gas 1401
Label**
High-elevation adjustment 197062
030,
045
UDAP, UDAS,
UDBP, UDBS,
(269851) or UBX,
UBZ, UDX, UDZ
(1036544R)
Spring kit Spring kit #396222 for a VR8215 single-stage valve 261651
1/2-inch, single-stage
(VR8105K2959,
VR8205K2965, or
VR8215T5214)
Burner orifices Refer to Table 3
060,
075
UDAP, UDAS,
UDBP, UDBS,
(269852) or UBX,
UBZ, UDX, UDZ
(1036545R)
Spring kit
#396222 for single-stage valve VR8215 261651
1/2-inch, single-
stage (VR85K2959,
VR8205K2965, or
VR8215T5214)
or
1/2-inch, two-stage
(VR8105N2931 or
VR8205N2913)
#396205 for two-stage valve VR8105, VR8205, or VR8305 197208
Burner orifices Refer to Table 3
100,
125
UDAP, UDAS,
UDBP, UDBS,
(269853) or UBX,
UBZ, UDX, UDZ
(1036546R)
Spring kit
#396222 for single-stage valve VR8215 261651
#396205 for two-stage valve VR8105, VR8205, or VR8305 197208
Burner orifices Refer to Table 3
150,
175
UDAP, UDAS,
UDBP, UDBS,
(269854) or UBX,
UBZ, UDX, UDZ
(1036547R)
Spring kit
#396222 for single-stage valve VR8215 261651
#396205 for two-stage valve VR8105, VR8205, or VR8305 197208
Burner orifices Refer to Table 3
200,
225,
250
UDAP, UDAS,
UDBP, UDBS,
(269855) or UBX,
UBZ, UDX, UDZ
(1036548R)
Spring kit
#396222 for sinle-stage valve VR8215 261651
1/2-inch, single-
stage (VR85K2959,
VR8205K2965, or
VR8215T5214),
3/4-inch single-stage
(VR8305N4258),
1/2-inch, two-stage
(VR8105N2931 or
VR8205N2913),
or
3/4-inch, two-stage
(VR8305N4289)
#396205 for two-stage valve VR8105, VR8205, or VR8305 197208
Burner orifices Refer to Table 3
300,
350,
400
UDAP, UDAS,
UDBP, UDBS,
(201738) or UBX,
UBZ, UDX, UDZ
(1036549R)
Spring kit #396205 for two-stage valve VR8105, VR8205, or VR8305 197208
3/4-inch, single-stage
(VR8305N4258) or
3/4-inch, two-stage
(VR8305N4289)
Burner orifices Refer to Table 3
*Used only at installation elevations >2000 feet (>610 meters).
CONVERSION KIT SELECTION—CONTINUED
INSTALLATION
Install the conversion kit in accordance with the following steps. Ensure that the kit is correct for the size of the heater
being serviced (refer to Table 1 or Table 2). Heater component locations are shown in Figure 1.
1. Remove gas supply and electrical power:
a. Turn off gas supply at shutoff valve outside of heater.
b. Turn off electrical power.
c. Open control access panel.