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OPERATING
INSTRUCTIONS
Continued
IMPORTANT: DO NOT attempt to adjust the
main burner input using the main gas supply valve.
This may cause the pilot and thermocouple to shut
down the burner.
SHUTTING OFF HEATER
• For short periods of time, turn the main burner
off by turning control knob clockwise to the
PILOT position.
• For extended periods of non use, turn appli-
ance completely off by turning control knob
clockwise to the PILOT position, press knob
slightly, then turn knob fully clockwise to
the OFF position. Note: For propane/LP gas
models, also turn off gas supply cylinder.
PILOT BURNER ADJUSTMENT
1. Remove pilot adjustment cap. The pilot adjust-
ment cap is a slotted screw located in front
of the PILOT designation stamped on top of
valve body just below control knob.
2. Adjust pilot key to provide properly sized
flame. Rotate the key clockwise to decrease
flame or counterclockwise to increase flame.
3. Replace pilot adjustment cap.
STORAGE
CAUTION: Disconnect heater
from natural gas supply.
1. Place plastic cover cap over brass fitting on
inlet connector.
2. Store in dry, clean, and safe place.
3. When taking heater out of storage, always
check inside of heater. Insects and small
animals may place foreign objects in heater.
Keep inside of heater free from combustible
and foreign objects.
114248-01C
WARNING: Never attempt
to service heater while it is
connected to gas supply, oper-
ating or hot. Severe burns can
occur.
1. Keep heater clean. Clean heater annually or as
needed to remove dust and debris. If heater is
dirty or dusty, clean heater with a damp cloth.
Use household cleaners on difficult spots.
2. Inspect heater before each use. Check connec-
tions for leaks. Apply mixture of liquid soap
and water to connections. Bubbles forming
show a leak. Correct all leaks at once.
3. Inspect hose/regulator assembly before each
use. If hose is highly worn or cut, replace.
4. Have heater inspected yearly by a qualified
service agency.
SPECIFICATIONS
Propane/LP Model 125-R
• Rating: 125,000 Btu/Hr (131,882 kj)
• Fuel: Propane Vapor Only
• Fuel Consumption per Hour:
5.17 liters (1.3 gallon) 2.6 kg (5.8 lb)
• Supply Pressure To Regulator (for input adjust-
ment): Maximum - 1380 kPa (200 psi)
Minimum - 138 kPa (20 psi)
• Manifold Pressure: 2.3 kPa (9.5 inches W.C.)
• Minimum Surrounding Air Temperature:
-29° C (-20° F)
Natural Gas Model 125-RN
• Rating: 125,000 Btu/Hr (131,882 kj)
• Fuel: Natural Gas Only
• Fuel Consumption per Hour: 3.5 m
• Manifold Pressure: 1.5 kPa (6" W.C.)
• Minimum Surrounding Air Temperature:
-29° C (-20° F)
www.desatech.com
CLEANING AND
MAINTENANCE
(125 ft
)
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