6. Piping installation
Installer reference guide / Mono tank integrated type
76
Charging the DHW tank
1
Open every hot water tap in turn to purge air from the system pipe work.
2
Open the cold water supply valve.
3
Close all water taps after all air is purged.
4
Check for water leaks.
Outdoor water piping insulation
The complete water circuit, inclusive all piping, must be insulated to prevent condensation during cooling operation and
reduction of the heating and cooling capacity as well as prevention of freezing of the outside water piping during winter
time. The thickness of the sealing materials must be at least 9 mm with (0.035 W/mK) in order to prevent freezing on the
outside water piping.
If the temperature is higher than 30°C and the humidity is higher than RH 80%, then the thickness of the sealing
materials should be at least 20 mm in order to avoid condensation on the surface of the sealing.
For piping in free air, it is recommended to use the insulation thickness as shown in below table as a minimum
(with ƛ=0.035 W/mK).
Piping length (m)
Minimum insulation thickness (mm)
<20
19
20~30
32
30~40
40
40~50
50
NOTE
This recommendation ensures good operation of the unit, however, local regulations may differ and shall
be followed.