210
Control function
⑤
Water Cycle (Cycle 1 or Cycle 2) can also operate by combination of request of water outlet temperature and Room
thermostats, that means the corresponding Water Cycle will be Switch ON and Thermo ON by request of water outlet
temperature or Room thermostats on the corresponding Water Cycle. Oppositely the Water Cycle will be Thermo OFF
when request of water outlet temperature and Room thermostats Thermo ON all disappear.
(2) Space cooling and Water Cycle
● Water Cycle 1 and Water Cycle 2
Space cooling is also operated by the same Water Cycle 1 or combination of Water Cycle 1 and Water Cycle 2. The unit is
connectable to only one cycle demand (Cycle 1).
The unit is also able to connect to 2 dierent Water Cycles (Cycle 1 and Cycle 2), Water Cycle 1 will be direct to the cooling
water outlet and Water Cycle 2 will be a mixing cycle in order to have a second temperature control using mixing valve
(dierent cooling water outlet temperature). Additionally, a motorized valve can be added in order to close direct cycle when
not in use. To get these 2 water temperature levels, a mixing station is required. This mixing station is controlled using the
indoor unit by means of a mixing valve and additional water sensor.
Outdoor Unit
Indoor Unit
AEH
3wv Cooling
Tiw
Tow
WP2
Tow2
M
ACT3
Vmix
WP1
WP1
Wired1
Wired2
ACT4
cycle_2_room_1
cycle_2_room_2
ACT1
ACT2
Fan Coil
cycle_1_room_1
cycle_1_room_2
NOTE:
1. Shut-o valve can be tted to separate cooling water circulation and heat water circulation (DHW operation) if Space
cooling and DHW is possible to operate simultaneously referring to 10.1.2.
● Room thermostat
There are max. 4 room thermostats that can be incorporated to each Water Cycle (Cycle 1 and Cycle 2). The room
thermostats can be Rooms function on master controller, Slave room controller or Demand ON/OFF1/2 by input signal. And
each room thermostat will control Switch ON/OFF and Thermo ON/OFF of each room based on individual operation (ON/
OFF / setting temperature / room temperature) and each room need an actuator to achieve room temperature control.
● Room thermostat & Water Cycle
①
If any one of room thermostats on the specic Water Cycle (Cycle 1 or Cycle 2) is Switch ON and Thermo ON, The
corresponding Water Cycle will be Switch ON and Thermo ON. Then the heat pump will be operated to meet demand.
②
If all room thermostats on the specic Water Cycle (Cycle 1 or Cycle 2) is Switch OFF and Thermo OFF, The
corresponding Water Cycle will either be Switch OFF / Thermo OFF or not depending on setting .
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