DESA Heating Products 80-C Manuel D'utilisation page 7

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Type of Gas
Gas Supply Pressure to regulator
Maximum
Minimum
Gas Supply Pressure regulator out
Ignition
Minimum Ambient Temp. Rating
Rating
Fuel Consumption
Fuel Orifice Port No.
Fuel Orifice Port Size
WARNING: Never service heater while it is plugged in, connected
to propane supply, operating, or hot. Severe burns and electrical
shock can occur.
OBSERVED FAULT
Burner fails to light
Pilot lights but goes out when
automatic control valve button
is released
Burn rate is low
113811-01A
SPECIFICATIONS
80,000 Btu
Propane/LP Only
Bottle Pressure
5 psig (34.5 kPa)
11" W.C. (2.74 kPa)
Piezo Ignitor
0°F (-17.8°C)
30,000 - 80,000 Btu/hr
(8.79 - 23.4 kW)
1.4 to 3.7 lb/hr
(.74 – 1.80 kg/hr)
6
0.0472"
(1.20mm)
TROUBLESHOOTING
POSSIBLE CAUSE
1. Propane supply valve closed
on propane tank(s)
2. Excess flow check valve
closed
3. Blockage in burner orifice
4. Piezo ignition system not
sparking
5. Pilot orifice clogged
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. Control valve is on LOW
2. Plugged gas orifice
3. Low gas pressure
4. Low fuel supply
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200,000 Btu
Propane/LP Only
Bottle Pressure
15 psig (103 kPa)
10 psig (68.9 kPa)
Piezo Ignitor
0°F (-17.8°C)
75,000 - 200,000 Btu/hr
(22.0 - 58.6 kW)
3.5 - 0.3 lb/hr
(1.44 - 4.32 kg/hr)
6
0.0320"
(.813mm)
REMEDY
1. Open propane supply valve
slowly
2. Close propane supply valve on
propane tank and reopen slowly
3. Replace burner orifice
4. Check to assure ignitor elec-
trode gap is .195" Check wire
lead for damage. Replace
piezo ignitor and/or ignitor
electrode as necessary
5. Clean or replace pilot assembly
1. Relight, hold automatic control
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
1. Turn valve counter clockwise
to HIGH
2. Replace gas orifice
3. Check gas supply; check
regulator output
4. Consult propane gas supplier
7