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272357-UUM-A-0407

Unitary Products Group

9

SECTION III: REPLACEMENT PARTS LIST

1

27

6,21

11

2

5

45

3

46

31

17

22

10

9

8

42

24

38

35

4

7

12,36

23

20

30

39

16

48

49,50

29

51

26

28

28A

11

13

12

20

36

25

37

7

TABLE 2: 

Field Installed Accessories - Non Electrical

FIELD INSTALLED ACCESSORIES - NON-ELECTRICAL 

MODEL NO.

DESCRIPTION

USED WITH

1NP0347

PROPANE (LP) CONVERSION KIT

ALL MODELS

1PS0313

HIGH ALTITUDE PRESSURE SWITCH KIT* 

(Does Not Include Orifices)

40, 60, 80, 100 MBH

1PS0314

120 MBH

1CB0314

COMBUSTIBLE FLOOR BASE FOR DOWNFLOW UNITS

14-1/2” (”A”) CABINETS

1CB0317

17-1/2” (“B”) CABINETS

1CB0321

21” (“C”) CABINETS

Summary of Contents for PT8 DH Series

Page 1: ...s electrical parts that have been wet or the furnace if deemed necessary FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury death or prop erty damage Do...

Page 2: ...e ducts ter minate outside the space containing the furnace 4 Examine the furnace casing making sure the physical support is sound without sagging cracks or gaps Examine the furnace base making sure i...

Page 3: ...electric power to the appliance 4 Remove burner access panel 5 Move gas control switch to the OFF position Do not force See Figure 4 6 Wait five 5 minutes to clear out any gas If you then smell gas ST...

Page 4: ...secure to the end of the filter rack How to Clean your Filter High velocity filters may be cleaned with a vacuum cleaner or washed with a garden hose Be sure to shake off excess water and allow filte...

Page 5: ...th the top and bottom The brush must pass around the rear heat exchanger tubes Vacuum loose scale and dirt from each tube 7 Clean Replace all components in reverse order Re gasket all surfaces which r...

Page 6: ...st be long enough to adequately cool the furnace but not so long that cold air is blown into the living space The blower on delay is fixed at 30 seconds and cannot be adjusted Continuous Blower Operat...

Page 7: ...out Low gas pressure faulty gas valve faulty hot surface ignitor or burner problem may cause this The furnace will lock out for one hour and then restart 8 RED FLASHES This fault is indicated if the f...

Page 8: ...DUCER LOW STAGE PRESSURE SWITCH HSI 1ST STAGE MAIN VALVE FLAME SENSE LOW CIRCULATOR HEAT SPEED 1ST STAGE LOW PRESSURE SWITCH CLOSE RECOGNITION HSI WARM UP 17 SEC IGNITION ACTIVATION PERIOD 4 SEC TRIAL...

Page 9: ...25 37 7 TABLE 2 Field Installed Accessories Non Electrical FIELD INSTALLED ACCESSORIES NON ELECTRICAL MODEL NO DESCRIPTION USED WITH 1NP0347 PROPANE LP CONVERSION KIT ALL MODELS 1PS0313 HIGH ALTITUDE...

Page 10: ...GROMMET 1 2 DIA 36 BRACKET ROLL OUT SWITCH 37 ORIFICE BURNER Natural 45 38 PLATE RESTRICTOR 39 COLLAR FLUE 40 BAFFLE BLOWER 41 GASKET RESTRICTOR PLATE 42 TUBING SILICONE 43 WIRING DIAGRAM 44 WIRING HA...

Page 11: ...272357 UUM A 0407 Unitary Products Group 11 SECTION IV WIRING DIAGRAM FIGURE 8 Wiring Diagram...

Page 12: ...alled in the United States and Canada EXCLUSIONS This warranty does not cover any 1 Shipping labor or material charges 2 Damages resulting from transportation installation or servicing 3 Damages resul...

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