Specifications, Accessories, Technical Service, Continued

SERVICE PROCEDURE SPECIFICATIONS ACCESSORIES TECHNICAL SERVICE SERVICE PUBLICATIONS

SERVICE PROCEDURE

Continued

10.Holding mounting bolt, carefully reach through fan blades into rear of heater. Be careful not to damage fan pitch. Insert bolt through motor mount and shell. With free hand, attach nut fin- ger tight. Repeat process for other mounting hole.

11.Use 1/8" hex wrench to loosen setscrew which holds fan to motor shaft (see Figure 9).

12.Slip fan off motor shaft.

13.Clean fan using soft cloth moistened with kerosene or solvent.

14.Dry fan thoroughly.

15.Replace fan on motor shaft. Make sure setscrew is touching back of flat surface on motor shaft (see Figure 10).

16.Place setscrew on flat of shaft. Tighten setscrew firmly (40-50 inch-pounds).

17.Remove two nuts and bolts securing motor mount to shell.

18.Pull motor and fan from shell. Turn motor and fan around. Carefully place back in shell. Note: Fan will go into shell first.

19.Line up mounting holes in shell with holes on motor mount. Replace four bolts through shell and motor mount. Insert bolts from outside of heater. Tighten nuts firmly.

20.Route motor wires through hole in bottom of shell (see Figure 7, page 6).

21.Connect motor wires as follows (see Figure 6, page 6):

•white wire—to terminal board.

Note: Attach to empty connector on white wire side of ter- minal board.

•black wire—to terminal board.

Note: Attach to empty connector on black wire side of ter- minal board.

•blue wire—to thermal switch wire

•orange wire—to solenoid valve

•green wire—to grounding screw on shell

22.Replace side cover.

23.Replace fan guard.

Fan

Setscrew

	Hub	Motor
	Hub	Shaft
		Shaft
		Setscrew
Motor shaft
Figure 9 - Fan, Motor Shaft, and	Figure 10 - Fan Cross
Setscrew Location	Section

SPECIFICATIONS
Output Rating (Btu/Hr)	225,000 to 375,000
Fuel	Propane/LP Vapor Only
Fuel Consumption
Gallons/Hour	2.5 Min/4.0 Max
Pounds/Hour	10.4 Min/17.4 Max
Supply Pressure To Regulator
Minimum (for input adjustment) ...	25 psig
Maximum	Tank Pressure
Regulator Outlet Pressure	7-20 psig
Hot Air Output (CFM)	1500
Motor	1725 RPM, 1/5 HP
Electric Input	120 V/60 Hz
Amperage	4.2
Ignition	ElectronicDirectSpark,D.S.I.
Weight (Pounds)
Heater	52
Shipping	57
Size - L x W x H (Inches)
Carton	37 x 15.25 x 20.75
Heater	35 x 13 x 19.5

ACCESSORIES

Purchase accessories and parts from your nearest dealer or service center. If your dealer or service center can not supply an accessory or part, either contact your nearest Parts Central (listed in the separate Authorized Service Center booklet) or call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.

Fuel Gas Connector: LPA4020

A POL adapter with excess-flow check valve.

Thermostat: HA1210

TECHNICAL SERVICE

You may have further questions about this heater. If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040 or visit our website at www.desatech.com. When contacting DESA Heating Products, please have your model and serial num- bers of your heater ready.

SERVICE PUBLICATIONS

You can receive an Illustrated Parts List free of charge. Send your request and a self-addressed, stamped envelope to DESA Heating Products (address on back page). Be sure to include the heater model number. You can purchase a service manual for $5. Make check payable to DESA Heating Products.

For more information, visit www.desatech.com