Desa CANADIAN PROPANE CONSTRUCTION CONVECTION HEATER - Manual (Page 6)

www.desatech.com 112396-01A 6
REMEDY
1. Open propane supply valve
slowly
2. Replace burner/valve assembly
3. Assure ignitor electrode gap is
.120" (3.04 mm). Check wire
lead for damage. Replace
piezo ignitor and/or ignitor
electrode as necessary
1. Relight, hold automatic con-
trol valve button in 45 seconds
2. Check propane tank(s) for
proper gas supply
3. Tighten connection or replace
thermocouple
4. Replace automatic control
valve assembly
1. Check gas supply; check regu-
lator output
2. Consult propane gas supplier
3. Replace burner assembly
POSSIBLE CAUSE
1. Propane supply valve closed
on propane tank(s)
2. Blockage in burner/valve as-
sembly
3. Piezo ignition system not
sparking
1. Not enough warm-up time
2. Low gas pressure
3. Thermocouple loose or needs
to be replaced
4. Automatic control valve
needs to be replaced
1. Low gas pressure
2. Low fuel supply
3. Plugged gas orifices
SYMPTOM
Burner fails to light
Burner lights but goes out when
automatic control valve button
is released
Maximum burn rate is low
WARNING: Never attempt to service heater while it is connected
to propane supply, operating, or hot. Severe burns can occur.
TROUBLESHOOTING
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
Gallons (Liters)/Hour ... Min .17 (.64), Max .27 (1.02)
Pounds (kg)/Hour ....... Min .70 (.32), Max 1.16 (.53)
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)
Weight
Heater ............................................ 3.2 kg (7 lb)
Shipping ......................................... 4.1 kg (9 lb)
Size - L x W x H
Heater ................................ 31.7 x 27.9 x 34 cm
(12.5 x 11 x 13.4 inches)
Carton ................................ 33 x 30.5 x 35.6 cm
(13 x 12 x 14 inches)
TECHNICAL SERVICE
You may have further questions about installation,
operation, or troubleshooting. If so, contact DESA
Heating Products’ 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 Products’ tech-
nical services web site at
www.desatech.com.