2
Installation
16
EN-RaychemHWATECOcontroller-IM-H57340 03/13
of the temperature sensor to the TEMP terminal in
the controller (PL4). The sensor wires do not have
a special polarity. To connect a wire, use a screw-
driver to push down the orange tab on the side of the
terminal. Put the wire into the hole and release the
orange tab.
PL4
PL3
PL5
Standard temperature sensor
PT100 sensor (2 wire)
short
for
PT100
TEMP
BMS
B A
PL4
PL3
PL5
TEMP
BMS
B A
Alarm,
Sensor,
and BMS
terminals
PL6
Alarm c
ont
act
TEMP
BMS
B A
Figure 9: TEMP terminal location and sensor wiring
Optionally, PT100 RTDs from the water heater can
be used. To install a PT100 sensor first connect a
jumper between the terminals indicated in Figure 9,
then connect the two wires from the RTD. If you are
using a three wire sensor, remove the compensation
lead and only connect the two measurement wires.
