CLIVET WSAN-YMi 21, Manual For Installation, Use And Maintenance, Page: 42 / 156

42
Hydraulic system diagram
1 Air purge valve 12 Water outlet connection
2 Water vessel with backup heater(optional) 13 Pressure relief valve
3 Expansion vessel 14 Water inlet connection
5 Refrigerant gas connection 15.1 Electrical heating tape
7 Refrigerant liquid connection 15.2 Electrical heating tape
8 Manometer 15.3 Electrical heating tape
9 Flow switch 16 Water inlet connection
10 Circulation pump 17 Water outlet connection
11 Plate heat exchanger Temperature sensors:
TW_in
TW_out
T2B
T2
T1(optional)
NOTE
• The standard unit is without backup heater. Backup heater kit is an optional part for 5,7,9kw models.
•
Backup heater can be integrated in the unit for customized models (12,14,16kW).
• If the backup heater is installed, the port (CN6) for T1 in the main control board of hydraulic compartment should connect to the
corresponding port in the backup heater kit.
8 WATER CONNECTIONS
Beckup Heater Kit
5 / 7 / 9 kW 12 / 14 / 16 kW
Option
Installation outside the unit
Resistance power: 3kW
Option
Installation inside the unit
Resistance power: 3kW - 4,5 kW 1-phase; 4,5 kW 3-phase