Proheat A4 - Manual (Page 22)

PROHEAT AIR A2/A4 INSTALLATION MANUAL 2-12
2.8.8 Optional External Temperature Sensor
The external temperature sensor plugs in to a connector on the Driver Control
Panel (DCP) and temperature information from this sensor can be used for
information or for controlling heater output.
An external temperature sensor is used when the DCP is not in the same
area as the heater such as in a cargo area. An external temperature sensor
can also be used to monitor outside air temperature for information only. In
this case it cannot be used to control heater output.
The temperature sensor must be mounted:
• About midpoint between the floor and ceiling
• Within the length of the cable to the DCP - do not extend the cable
• Away from the hot air stream from the heater or the vehicle OEM heater system
• Away from direct sunlight or windows
• In front of any curtains or dividers
When installing the temperature sensor choose a location noting the general
considerations above.
Affix to a solid surface using a cable tie mount or adhesive tape (refer to
figure 16).
Route wire back to DCP and connect.
Program DCP per instructions on page 3-1 and 6-1.
Figure 16. External Temperature Sensor.
CABLE TIE MOUNT
EXTERNAL
TEMPERATURE
SENSOR
MUST BE FREE AND CLEAR OF
ANY OBSTRUCTION INCLUDING
MOUNTING SURFACE