Hisense AHM-080HCDSAA - DHW Recirculation Pump

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Control function
NOTE:
1. If DHW electric heater is unavailable and DHW Boost Setting temperature is too high, DHW will be heated up to the max
temperature by heat pump.
2. DHW electric heater will work as mode of [H.Demand] and conne of [DHW_ht_di] ≤ 3°C to achieve setting temperature
quickly(referring to 10.3.3). Forcing o DHW electric heater by DSW4-3: OFF is invalid during DHW Boost operation.
10.3.7 DHW Recirculation pump
Output signal to drive relay of a re-circulation pump in case of re-circulation pump is available for DHW tank. By using this
output, user can heat all the water inside DHW system when heating DHW by Heat Pump. This output can also be used
with Legionella and timer function.
NOTE:
1. When DHW Recirculation pump is available Optional Output signal need be congured as function of [DHW re-circulation
pump] to drive relay of a re-circulation pump.
The conguration of this option should be done through the master controller.
Conguration →Auxiliary Function →DHW Pump
Mark Description Default Value Range Steps Units
DHW_recirp DHW Pump Disabled
Disabled
Demand
Anti-Legionella
Timer
Timer+ Demand
Timer+ Anti-Legionella
Timer+ Demand+ Anti-Legionella
_ _
(1) [DHW_recirp] set as [Disabled] to invalid DHW Recirculation pump function.
(2) [DHW_recirp] set as [Demand]
Output ON signal in case that DHW is demand ON or DHW Electric Heater is ON.
(3) [DHW_recirp] set as [Anti-Legionella]
Output ON signal in case that DHW Anti-legionella protection is operated.
DHW Recirculation pump can be used to circulate DHW outlet water to o󰀨er instant hot water at the tap.
Conguration →Auxiliary Function →DHW Pump
Mark Description Default Value Range Steps Units
DHW_recirp_t Running Time 8 5-60 1 Min
The operation of DHW Pump can be done through the master controller [favourite] button.
Mark Description Default Value Range Steps Units
M
aster controller [favourite] button
DHW Pump ON/OFF - -
● DHW Pump will run for [DHW_recirp_t] of Running Time after Push ON through the master controller [favourite]
button of DHW Pump .
● DHW Pump will stop automatically after [DHW_recirp_t] of Running Time.
(4) [DHW_recirp] set as [Timer]
Output ON/OFF signal periodically (ON 4min and OFF 8min) one hour later after DHW schedule priority is activated at
[Starting Time 1/2/3/4] and This Output will last 2 hours. Refer to 10.1.2.1.1.