Sanden
Heat
Pump
–
Installation
Manual
Page
13
of
26
How
to
connect
tank
unit
thermistor
cable
Cut the thermistor cable and conduit to the required lengths. The thermistor cable and
conduit length are designed to cover the maximum allowable distance between the
tank unit and heat pump unit (four meters). If the units are located closer than four
meters the thermistor cable and conduit may be cut to the desirable length (Figure 11).
Reveal the sheath on the thermistor cable.
Attach the conduit connector to the conduit end. Push the conduit into the opening on
the connector until the conduit does not go any further. Pull the conduit several times
to ensure the connector is fixed properly to the conduit.
Unscrew and firmly remove the terminal block cover. Do not use unnecessary force to
remove the cover as this could pull and break the cable coming out of the tank unit.
Join the connector on the end of the thermistor conduit coming from the heat pump
unit side to the opening on the bottom of the cover on the tank unit. Confirm the gasket
is attached to the tread of the conduit connector before joining the connector to the
cover. If the gasket is not attached, there is a risk of water getting inside the cover and
this may result in a malfunction of the terminal block.
Connect the thermistor cable to the bottom of the terminal block.
Put the terminal block cover back onto the tank unit and tighten the screws.
Figure 11: Connect tank unit thermistor cable
Gasket
Conduit
connecto
Conduit
Thermister
cable
Terminal
block
Tank
unit
