Hisense AHM-080HCDSAA - Water Cycle for Space Cooling

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Control function
10.2.3 Water Cycle for space cooling
In addition, the unit can be combined with fan coils to delivery space cooling. When space cooling operation is required, the
3-way valve for cooling changes its normal position diverting to the fan coils, allowing to delivery cooling capacity.
Space cooling is operated by Water Cycle 1 or combination of Water Cycle 1 and Water Cycle 2.
Cycle 1 will be direct (low temperature for fan coils operation (5~12ºC)) and Cycle 2 will be a mixing cycle in order to have a
second temperature control using mixing valve (medium temperature for oor refreshing operation (16~21ºC)). 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 / additional
pump (WP2) /additional water sensor (Tow2).
3wv Cooling
WP2
Tow2
M
ACT3
Vmix
WP1
cycle_2_room_1
Wired1
cycle_2_room_2
Wired2
ACT4
ACT1
ACT2
Fan Coil
cycle_1_room_1
cycle_1_room_2
NOTE:
1. When space cooling is available Optional Output signal need be congured as function of [3WV cooling] to drive 3-way
valve for space cooling.
2. When Cycle 2 is available Auxiliary sensor on PCB1 of indoor unit need be congured as function of [Tow2] . Refer to
10.10.
3. When Cycle 2 is available Optional Output signal need be congured as function of [WP2]. This Output signal can be
used as relay signal to wp2. Refer to10.10.