Desa Btu, Hr Specifications, Technical Service, Troubleshooting, Symptom, Possible Cause, Remedy

Models: Hr Btu

1 24
Download 24 pages 56.93 Kb
Page 6
Image 6
SPECIFICATIONS

SPECIFICATIONS

Rating: High - 25,000 Btu/Hr (26.375 Kj/Hr) Low - 15,000 Btu/Hr (15.826 Kj/Hr)

Fuel: Propane Vapor Only

Fuel Consumption/Hour: Minimum - 0.17 gal (0.64 liter), Maximum 0.27 gal (1.02 liter) Minimum - 0.70 lb (0.32 kg), Maximum 1.16 lb (0.53 kg)

Supply Pressure (To Regulator): Maximum - Tank Pressure, Minimum - 275.8 kPa (40 psi)

Regulator Outlet Pressure: High - 103.4 kPa (15 psi), Low - 34.4 kPa (5 psi)

TECHNICAL SERVICE

You may have further questions about installation, operation, or troubleshooting. If so, contact DESA Heating Productsʼ Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your heater ready.

You can also visit DESA Heating Productsʼtechni- cal services web site at www.desatech.com.

TROUBLESHOOTING

TECHNICAL SERVICE WARNING: Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns can occur.

SYMPTOM

POSSIBLE CAUSE

REMEDY

 

 

 

 

Burner fails to light

1. Propane supply valve closed

1.

Open propane supply valve

 

 

on propane tank(s)

 

slowly

 

2.

Blockage in burner/valve

2.

Replace burner/valve assembly

 

 

assembly

 

 

 

3.

Piezo ignition system not

3.

Assure ignitor electrode gap

 

 

sparking

 

is 0.120" (3.04 mm). Check

 

 

 

 

wire lead for damage. Replace

 

 

 

 

piezo ignitor and/or ignitor

 

 

 

 

electrode as necessary

 

 

 

 

Burner lights but goes out when

1. Not enough warm-up time

1.

Relight, hold automatic control

automatic control valve button

 

 

 

valve button in 45 seconds

is released

2. Low gas pressure

2.

Check propane tank(s) for

 

3.

Thermocouple loose or needs

 

proper gas supply

 

3.

Tighten connection or replace

 

 

to be replaced

 

thermocouple

 

4.

Automatic control valve

4.

Replace automatic control

 

 

needs to be replaced

 

valve assembly

 

 

 

 

Maximum burn rate is low

1. Low gas pressure

1.

Check gas supply; check

 

2.

Low fuel supply

 

regulator output

 

2.

Consult propane gas supplier

 

3.

Plugged gas orifices

3.

Replace burner assembly

6

www.desatech.com

112396-01B

Page 6
Image 6
Desa Btu, Hr owner manual Specifications, Technical Service, Troubleshooting, Symptom, Possible Cause, Remedy