44
1
Air purge valve
Remaining air in the water circuit will be automatically removes air from the water circuit.
2 Backup
heater(optional)
Provides additional heating capacity when the heating capacity of the heat pump is
insufficient due to very low outdoor temperature. Also protects the external water piping
from freezing.
3
Expansion vessel
Balances water system pressure. (Expansion vessel volume: 2L in 5/7/9kW units and 5L in
12/14/16kW units.)
4 Pressure
Sensor
/
5
Refrigerant gas connection
/
6
Temperature sensors
Four temperature sensors determine the water and refrigerant temperature at various
points in the water circuit.
6.1-T2B; 6.2-T2; 6.3-T1(optional); 6.4-TW_out; 6.5-TW_in
7
Refrigerant liquid connection
/
8
Manometer
Provides water circuit pressure readout.
9
Flow switch
Detects water flow rate to protect compressor and water pump in the event of insufficient
water flow.
10 Pump
Circulates
water in the water circuit.
11
Plate heat exchanger
Transfer heat from the refrigerant to the water.
12
Water outlet connection
/
13
Pressure relief valve
Prevents excessive water pressure by opening at 43.5 psi (3 bar) and discharging water
from the water circuit.
14
Water inlet connection
/
Water piping
8 WATER
CONNECTIONS
NOTE
If the installation is equipped with a domestic hot water tank (optional), please refer to the domestic hot water tank Installation And
Owner's Manual. If there is no glycol (anti-freeze) in the system there is a power supply or pump failure, drain the system (as shown
in the figure below).
NOTE
If water is not removed from the system in freezing weather
when unit is not used.
The frozen water may damage the water circle parts.
Содержание WSAN-YMi 21
Страница 1: ...WSAN YMi 21 81 MANUAL...
Страница 43: ...43 Hydraulic module 5 7 9 kW 12 14 16 kW...
Страница 53: ...53 P 5 7 9 kW 12 14 16 kW...
Страница 112: ...112 1 phase 5 7 9KW 15 ELECTRICAL SCHEMA...
Страница 113: ...113 1 phase 12 14 16kW...
Страница 114: ...114 3 phase 12 14 16kW 15 ELECTRICAL SCHEMA...
Страница 134: ...134 Access by pwd is reserved to qualified personnel The parameters changes may cause malfunctions Structure menu...
Страница 153: ...153 20 CONTROLLER NAVIGATION MENU...
Страница 154: ...154...