Operating instructions
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• Correct installation of this heater is necessary to ensure
safe and proper operation.
Read and understand this manual before attempting to
install the heater. Failure to follow all these instructions
could cause serious or fatal injury.
• Heater must be turned off while re-fueling.
• Do not install heater in enclosed areas where combustible
fumes may be present.
• Do not install heaters in engine compartments of marine
vessals.
• Install the exhaust system so it will maintain a minimum
distance of 50mm (2”) from an
y flammable or heat sensi-
tive material.
• Ensure that the fuel system is intact and there are no leaks.
• Route the heater exhaust so that exhaust fumes cannot
enter any passenger compartments.
• If running exhaust components through an enclosed com-
partment, ensure that it is vented to the outside.
• The use of Espar coolant heaters requires that the coolant
in the system to be heated contains a proper mixture of
water and antifreeze to prevent coolant from freezing or
slushing.
• If the coolant becomes slushy or frozen, the heater’s
coolant pump cannot move the coolant causing a block-
age of the circulating system. Once this occurs, pressure
will build up rapidly in the heater and the coolant hose will
either burst or blow off at the connection point to the
heater.
• This situation could cause engine damage and/or person-
al injury. Extreme care should be taken to ensure a pro-
per mixture of water and antifreeze is used in the coolant
system.
• Refer to the engine manufacturer’s or coolant manufactu-
rer’s recommendations for your specific requirements.
Warning To Installer
Warning - Explosion Hazard
Warning - Fire Hazard
Warning - Asphyxiation Hazard
Warning - Safety Hazard on Coolant Heaters
Used With Improper Antifreeze Mixtures
Heater Warnings
Please note!
Installation of the heater is permitted in vehicles used
for the transport of dangerous goods as per ADR.
Caution
:
During electrical welding work on the vehicle discon-
nect the power to the heater in order to protect the
control unit.
The heater must only be used and operated for the range of
application stated by the manufacturer in compliance with the
“Operating instructions” included with every heater.
Direct questions to Espar Heater Systems:
Canada & U.S.A. 1-800-387-4800
This publication was correct at the time of print. However,
Espar has a policy of contin
uous improvement and
reserves the right to amend any specifications without
prior notice.
Safety instructions for application and
proper purpose
Note: All measurements contained in this manual contain
metric and approximate SAE equivalents in brack-
ets eg 25mm (1”).