Piping Connections - Sanden GAUS-160FQS Installation Manual

Figure 5: Heat pump installation example and dimensions
Attach the drain elbow to the drain opening located on the bottom of the heat pump
unit. The drain elbow is included in the heat pump box.
Attach a drain hose with 16mm of inner diameter to the drain elbow to guide the
drained water to an appropriate drain

Piping Connections

All piping that connects to the water supply must be carried out by a licensed plumber.
The water supplied to the system must comply with the drinking water quality standard.
Use of water that does not comply with this standard could result in a malfunction of
the system.
The water source must have a pressure of 200 kPa or higher.
A drain hopper must be installed under the drain outlet.
A drain trap must be installed over the drain pipe if water is to be drained to a drain
ditch. If a drain trap is not installed, gas could flow out and cause severe corrosion and
malfunction of the heat pump unit.
This product cannot be connected to a solar water heater.
The piping must be insulated using insulation having a thermal conductivity no greater
than 0.04 W/m.K and minimum thickness of 25 mm.
If the piping needs brazing make sure that all flux and flux splatter is wiped away with a
wet cloth.
As the hot water supply pipe will expand and contract, use sleeves when passing it
through concrete walls or slabs.
With buried piping, a sheath pipe will need to be used that has had both ends sealed to
avoid any rain penetration.
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 passing water through it
verify whether any dust has accumulated on the filter of the taps and heat pump unit
pipe.)
When using sealing tape ensure that no tape is sticking out of the thread.
If any heat-resistant vinyl chloride pipes (such as HT pipe) are bonded together, pass
water through them after the pipes have set to prevent any bond adhering to the filter
or other parts.
Sanden Heat Pump – Installation Manual
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