11
Heater Plumbing
Understand that connecting your heater to the engine makes it an integral part of the engine’s cooling
system. It is impossible to describe all of the safety and operational considerations in these installation
instructions. Therefore, the technician must exercise professional judgment to achieve a safe and quality
installation. It is important to try to optimize the coolant flow to get the best heat distribution and heater
operation.
Installation Procedure:
• Plan the heater plumbing circuit.
• Install the coolant pump in a protected location close to the heater (Note: Pump is pre-installed in the
boxed version)
• Install fittings, valves and run hoses as required.
• Bleed the air out of the system (Run engine to help circulate coolant).
• Top up coolant as required.
• Test the heater to ensure proper flow.
*Figure P1
