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119143-01A 9
A
Fan
Hub
Setscrew
Motor
Figure 10 - Fan Cross Section
SERVICE PROCEDURES
Continued
14. Dry fan thoroughly.
15. Replace fan on motor shaft. Place set-
screw on flat of shaft. See chart in Figure
10 for distance of fan hub from end of
motor shaft. Tighten setscrew rmly (40-
50 inch-pounds).
16. Remove screws securing motor mount to
shell.
17. Pull motor and fan from shell. Turn motor
and fan around. Carefully place back in
shell. Note: Fan will go into shell rst.
18. Line up mounting holes in shell with
holes on motor mount. Replace 4 screws
through shell and motor mount.
19. Route motor wires through hole in top of
shell (see Figure 7, page 8).
20. Reconnect motor wires to the same posts
on terminal block as removed in step 3,
page 8 (see Figure 7, page 8).
21. Replace top cover.
22. Replace fan guard.
SPECIFICATIONS
All Models
• Propane/LP Gas
• Gas Supply Pressure to Regulator:
Max - Bottle Pressure, Min - 25 psig
(172.4 kPa)
• Gas Supply Pressure Regulator Out:
20 psig (137.9 kPa)
• Electrical Input: 120V, 60 Hz, 1Ø, 3a
• Direct Spark Ignition
• Minimum Ambient Temp. Rating:
0° F (-17.8° C)
• 30 - 55,000 Btu/Hr (8.8 - 16.1 kW)
• Fuel Consumption:
1.4 - 2.6 pounds/hr (0.70 - 1.28 kg/hr)
• Primary Flame Control:
Thermocouple operated gas valve
• Heated Air Output: 300 CFM (8.49 m
3
/min)
• 50 - 85,000 Btu/Hr (14.6 - 25.0 kW)
• Fuel Consumption:
2.3 - 3.9 pounds/hr (1.04 - 1.77 kg/hr)
• Primary Flame Control:
Thermocouple operated gas valve
• Heated Air Output: 350 CFM (9.91 m
3
/min)
• 75 - 125,000 Btu/Hr (21.9 - 36.6 kW)
• Fuel Consumption:
3.5 - 5.8 pounds/hr (1.59 - 2.63 kg/hr)
• Primary Flame Control:
Thermocouple operated gas valve
• Heated Air Output: 350 CFM (9.91 m
3
/min)
• 125 - 170,000 Btu/Hr (36.6 - 49.8 kW)
• Fuel Consumption:
5.8 - 7.9 pounds/hr (2.63 - 3.6 kg/hr)
• Primary Flame Control:
DSI Flame Rectication
•
Heated Air Output: 450 CFM (12.74 m
3
/min)
Figure 9 - Fan, Motor Shaft and Setscrew
Identication
Motor
Shaft
Fan
Setscrew
Model Distance A
55 0.19" (4.8 mm)
85
0.5" (12.7 mm)* or
0.9" (22.9 mm)*
125
0.5" (12.7 mm)* or
0.9" (22.9 mm)*
170 0.25" (6.4 mm)
Motor
Shaft
* Depending
on Motor Shaft