Proheat M80 User Manual
Page 23
PROHEAT G-I PCM SERVICE MANUAL
2-2
Coolant is circulated through the heat exchanger via the inlet and outlet
ports. Heat is transferred from the heat exchanger through the inner wall of
the exchanger into the coolant. The exhaust gases are directed out through
the exhaust port.
Measures the coolant temperature near the outlet port of the heat exchanger
and sends this information to the G-I PCM. This sensor also measures the
inner heat exchanger surface temperature for an overheat condition. It must
be connected at all times for overheat protection.
For installations where the coolant flow through the heat exchanger is
opposite of what is specified on page 1-2 and page 2-3.
Circulates coolant through the PROHEAT and vehicle heating system.
Depending on the PROHEAT installation, it may be operated by the G-I PCM.
Heat Exchanger:
Coolant Pump:
Temperature Sensor 1:
Temperature Sensor 2: