Sanden GS3-45HPA-US, Installation Manual

Page: 16 / 36

Sanden Heat Pump – Installation Manual
Page 16 of 36
Freeze protection

Even if the water pipes have been insulated, the piping can freeze if the
surrounding temperature falls below freezing (32
o
F). This could cause damage to
the equipment and piping so make sure the appropriate freeze protection measures
are taken.

Follow the instructions in the installation manual provided with the freeze protection
heat tape.

After completion of the piping, inspect the plumbing for any water leaks from the
joints before installing freeze protection.

Wrap the freeze protection heater around the pipes, up to the water connectors of
the Heat Pump unit.

Ensure the freeze protection heaters are connected to a 24 hours continuous
power supply.

It is important to fully explain the use and operation of the freeze protection heater
to the customer.

When turning off the power, because the unit will not be in use, ALL water
must be drained from the unit and piping
.
N
ote: Heat tape that uses the outside temperature to energize, may not maintain
the temperature of the pipes correctly. It is important to use a heat tape that
directly senses the pipe’s temperature.
Figure 11: Details on wrapping thermal insulation around the piping connector