Sanden GAUS-315EQTD Installation Manual page 8

Cont

This product cannot be connected to a solar water heater.

The piping must be appropriately insulated, consider Heat tape to protect the water piping
in areas with freezing temperatures.

If the piping needs brazing make sure that all flux and flux splatter is wiped away with a wet
cloth. When brazing ensure connections are protected using a wet cloth

As the hot-water supply pipe will expand and contract, use sleeves when penetrating
through concrete walls or slabs.

With buried piping, an outer cover will need to be used that has had both ends sealed to
avoid any ingress of rain.

Use only heat-resistant and corrosive-resistant material to seal the pipe joints.

Cutting and wrenching the piping material may result in oil and dust adhering to it. After
processing, clean the material with a mild detergent before doing any piping work and
smooth the edges to remove any scratches and burrs. (After flowing water through it verify
whether any debris has accumulated on the filter of the faucet and heat pump unit pipe.)

When using PTFE sealing tape ensure that no tape is sticking out of the threads.

If any heat-resistant PVC piping is used and are bonded together, flow water through them
after the pipes have set to prevent any bond adhering to the filter or other parts.
 Follow the manufacturer's instruction manual for the type of bond, amount to be applied,
curing time, and other specifications.

If any bond or flux has entered the tank unit and the hot water has a chemical/acrid smell
take the following countermeasures.
a) After heating the water in the tank unit, drain it and clean inside the tank unit. Fill the
tank unit with 26 gallons (100 litres) of water and exchange twice.
b) Clean or change the filter.
c) Fill up the tank unit.
d) Drain water from the relief valve for one to two minutes.
e) Run water from all the hot water supply faucets in the house for about ten minutes to
clean inside the pipes.
Sanden Heat Pump – Installation Manual
Page 8 of 33