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The water coming from the pressure relief valve and the condensate water is collected in the drainage pan.
The drainage hose should be connected to the drainage pipe.
Fig.6-5
Fig.6-6
When the unit is not running for a long time,make sure the unit is powered on all the time. If the unit should be cut off the
power, make sure the water in the piping of the system should be drained completely to avoid the water pump and piping
system being damaged by freezing. The power of the unit also needs to be cut off after water in the system is drained.
The insulation materials should be covered on the all piping in the water circuit piping system to prevent condenser water during
cooling operation, the capacity reduction and freezing of the outside water piping during winter. The insulation material should at
least of B1 fire resistance rating and complies with all applicable legislation. The thickness of the sealing materials must be at least
13 mm with thermal conductivity 0.039 W/mK in order to prevent freezing on the outside water piping.
If the outside temperature is higher than 30°C and the humidity is higher than RH 80%, then the thickness of the insulation
materials should be at least 20 mm in order to avoid condensation on the surface of the insulation piping.
All hydronic parts inside of the unit are insulated to reduce the heat lose.Insulation materials must be added on the field water piping.
The unit program has special functions which use the heat pump and backup heater (if aviliable) to protect the entire system from
freezing. When the temperature of the water flow in the system drops to a certain value, the unit will heat the water by using the heat
pump or the electric heating tap or the backup heater. The anti-freeze protection function will turn off only when the temperature
increases to a certain value.
When unit lose the power, the above function will not active to protect the unit from freezing.
needed
If the solar kit is designed in the system. The solar circulation water pipe should be connected to the inlet and outlet connector of
indoor unit.
6.4 Connecting the drainage hose to the indoor unit
17.5mm
Floor drain
15
18


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