Hisense AHM-080HCDSAA - Auto HEAT;COOL; Hydraulic Separator

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Control function
2. Water Cycle and room thermostats have following operation interaction.
①
If any one of room thermostats on the specic Water Cycle (Cycle 1 or Cycle 2) is Switch ON, then the corresponding
Water Cycle will be Switch ON.
②
If the specic Water Cycle (Cycle 1 or Cycle 2) is Switch OFF, then all of room thermostats on the corresponding Water
Cycle will be forced Switch OFF.
③
If all of room thermostats on the specic Water Cycle (Cycle 1 or Cycle 2) is Switch OFF and [O_mode(cooling) ] is
set as [OFF], then the corresponding Water Cycle will be forced Switch OFF in cooling mode.
10.2.4 Auto HEAT/COOL
The end-user set the desired operation mode on the controller: Heating, Cooling or Automatic. When Automatic is selected,
the change of the operation mode is based on averaged outdoor temperature. As long the outdoor temperature changes,
the system changes to match the system requirements. If outdoor temperature drops, the operation mode switches to
heating, and vice versa.
Space mode should be done through the master controller interface.
Main Interface → Space mode
Mark Description Default Value Range Steps Units
Space mode - Heat/Cool/Auto
The conguration of this option should be done through the master controller.
Conguration →Auto Heat/Cool
Mark Description Default Value Range Steps Units
Ho󰀨 Switch to Space heating 22 10-23 1 °C
Co󰀨 Switch to Space Cooling 25 24-35 1 °C
Space heating and space cooling will be decided as following When Space mode set [Auto]
①
Space heating will be set when the average outdoor temperature of 24 hours is lower than [Ho󰀨].
②
Space cooling will be set when the average outdoor temperature of 24 hours is more than [Co󰀨].
10.2.5 Hydraulic separator
In some installations, water pump of the unit is not sized for big heating installations (small water pump). In those cases, a
hydraulic separator or bu󰀨er tank, as a extra water pump, has to be used to ensure a proper water pump dimensioning.
The boiler is congured with the heat pump. A hydraulic separator or bu󰀨er tank has to be used to ensure a proper hydraulic
balancing. Additional water pump [WP3] and water sensor [Tow3] is needed for the boiler combination control.
Some installations need a big bu󰀨er tank in combination with an auxiliary heating system (boiler, pellets, solar panels, etc.).
In those cases, the control of the water temperature can be done by an external temperature sensor (Tow3) to heat the
water of that tank.
For example, the system works for only one zone application.
Using the bu󰀨er tank in combination with a boiler, Cycle 1 is working as Cycle 2 in a mixing loop. With this system, the
conguration of the Unit controller is like for 2 Cycles:
Cycle 1: Bu󰀨er tank working as Cycle 1
Cycle 2: Mixing circuit for space heating
NOTE:
1. Settings for Cycle 1 must be always higher than for Cycle 2.
2. Room thermostats must be incorporated only to Water Cycle 2. And [ O_mode(heating)] is set as [ON].
3. Cycle 1 only works as a buer tank.