Technical information

TECHNICAL INFORMATION
CARQUEST ENGINE HEATER - THERMOSTAT SETTINGS (RATINGS)
EXTERNAL HEATERS
LOWER RADIATOR HOSE HEATERS
OPEN (OFF) 175°F
CLOSE (ON) 135°F
79400 (IN LINE HEATER) OPEN (OFF) 284°F
CLOSE (ON) 170°F
MAGNETIC (78345, 78344)
OPEN (OFF) 275°F
CLOSE (ON) 271°F
TO OBTAIN SATISFACTORY RESULTS FROM YOUR ENGINE HEATER,
PLEASE READ AND FOLLOW THESE GUIDELINES.
• DO NOT USE A CARQUEST ENGINE HEATER WHEN USING A 100%
SOLUTION OF ANTIFREEZE—A 50/50 SOLUTION IS RECOMMENDED.
• CARQUEST HEATERS THAT ARE EQUIPPED WITH A THREE PRONG
(GROUNDING) PLUG SHOULD BE CONNECTED TO A PROPERLY
GROUNDED CIRCUIT OUTLET.
• IF AN EXTENSION CORD IS USED IN CONJUNCTION WITH A HEATER BE
CERTAIN THAT THE WIRE SIZE OF THE EXTENSION CORD IS OF ADEQUATE
SIZE FOR THE WATTAGE OF THE HEATER AND DISTANCE FROM THE
RECEPTACLE. SEE CHART BELOW. CONSULT A LICENSED ELECTRICIAN IF
FURTHER INFORMATION IS REQUIRED.
• DO NOT START VEHICLE ENGINE WITH HEATER PLUGGED INTO ELECTRICAL
OUTLET. ELEMENT HOT SPOTS COULD OCCUR CAUSING THE HEATER
ELEMENT TO BURN OUT.
• CARE SHOULD BE TAKEN WHEN REPLACING HEATER CORDS. THE 79786
REPLACEMENT CORD IS A 10 AMP, LOW WATTAGE REPLACEMENT CORD
FOR 400/600 WATT HEATERS. THE 78064 (120V) CORDS ARE DIESEL HEATER
REPLACEMENT CORDS.
SUGGESTED WIRE GAUGES FOR POWER SUPPLY CORDS
(Current carrying capacity shown in amperes)
4 6 8 10 12 14 16 18 20 25
Length in Feet Suggested wire Gauge
15 18 18 16 16 16 16 14 14 12 12
25 18 18 16 16 14 14 12 12 12 10
50 18 18 16 16 14 14 12 12 12 10
100 16 16 14 14 14 12 12 10 10 10
150 16 14 12 12 12 12 10 10 10 8