Sanden GAUS-315EQTD Installation Manual page 13

How to connect Tank thermistor cable to Heat Pump unit

The thermistor cable and conduit length are designed to cover the maximum allowable
distance between the tank unit and heat pump unit (50 feet). If the units are located
closer, the thermistor cable and conduit may be cut to the desired length (Figure 11).

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 carefully 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.

Attach 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 adhered to the thread of the conduit connector before attaching the
connector to the cover. If the gasket is not present, there is a risk of water getting inside
the cover and this may result in a malfunction of the terminal block.

Connect the thermistor cables to the bottom of the terminal block.
Replace the terminal block cover back onto the tank unit and tighten the screws.
Figure 11: Connecting tank unit thermistor cable
Tank unit
Sanden Heat Pump – Installation Manual
Page 13 of 33
Terminal
block
Thermistor
cable
Gasket
Conduit
connector
Conduit