035-19657-002 Rev. A (0704)
8
Unitary Products Group
SECTION III: REPLACEMENT PARTS LIST
FIELD INSTALLED ACCESSORIES - NON-ELECTRICAL
FIGURE 8:
Furnace Control Event Schedule
Thermostat Calling for Heat
Thermostat Satisfied
(Seconds)
THERMOSTAT
INDUCER
IGNITOR
MAIN VALVE
HUMIDIFIER
ELECTRONIC
AIR CLEANER
CIRCULATING
BLOWER
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
15 Sec.
Post
Purge
Fan on Delay
30 Seconds
0 2
17
22
52
0
60, 90, 120, 180 SEC.
Selectable Fan Off Delay
TABLE 2:
Field Installed Accessories - Non-electrical
MODEL NO.
DESCRIPTION
USED WITH
1NP0347
PROPANE (LP) CONVERSION KIT
040, 080,100
1NP0348
060, 115, 130
1PS0301
HIGH ALTITUDE PRESSURE SWITCH KIT
(Does Not Include Orifices)
SEE CHART, BELOW
1PS0302
1PS0311
1PS0312
1BR0314
EXTERNAL BOTTOM RETURN FILTER, with High Velocity Filter for Horizontal
Application for Upflow Bottom Return Application.
14-1/2” CABINETS
1BR0317
17-1/2” CABINETS
1BR0321
21” CABINETS
1BR0324
24-1/2” CABINETS
1CB0314
COMBUSTIBLE FLOOR BASE for Downflow Units
14-1/2” CABINETS
1CB0317
17-1/2” CABINETS
1CB0321
21” CABINETS
1CB0324
24-1/2” CABINETS
1SR0302
EXTERNAL SIDE FILTER RACK - with Filter Rack (6 pack)
ALL MODELS
HIGH PRESSURE SWITCH
Input (MBH)
Output (MBH)
2,000 Ft. to 5,500
Ft.
>5,500 Ft. to10,000
Ft.
40
32
1PS0301
1PS0301
60
48
1PS0301
1PS0301
80
64
1PS0302
1PS0302
100
80
1PS0312
1PS0311
115
92
1PS0312
1PS0311
130
104
1PS0312
1PS0311
