Airwell AWHM-TDF 190 Manuel D'installation, D'utilisation Et D'entretien page 76

6 - WATER CONNECTIONS
6.8 WATER SYSTEM PIPING
In case of installing the unit at a place where outside temperature below freezing point, insulation must be provided for all hydraulic
components.
190-300
Indicative plumbing diagram
The system components must be defined by Designer and Installer (ex. expansion tanks, vents, taps, calibration/safety valves etc.)
1 Pressure reducing valve
4 Non-return valve
7 Storage drain
10 Condensate drain
C DHW recirculation
Note:
Water temperature limiting valve is recommended for mixing the inlet cold water with outlet hot water to prevent burns caused by hot
water
Do not use flexible pipes for unit connection.
2 Water treatment devices (water softener, etc.)
5 Domestic hot water safety valve with discharge
8 Hot water circulator (recirculation) with check
valve
A Aqueduct inlet
3 Filter Y
6 DHW expansion vessel
9 Mixing valve thermostatic
B DHW
20