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System Control - ACVMax: 660Y2800 • B
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16
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APPLIANCE DESCRIPTION AND OPERATION
CH & DHW Settings / DHW settings (Cont’d)
DHW Settings
DHW Operation Enabled
Demand Thermostat
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Dierential 3°C
DHW Storage Adder 15°C
DHW Settings
DHW Operation Enabled
Demand Thermostat
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Dierential 3°C
DHW Storage Adder 15°C
DHW
Boiler Setpoint
75°C
35°C 87°C
DHW Boiler Setpoint is the xed boiler setpoint temperature during a domestic hot wa-
ter call when the Thermostat option is chosen in Demand Type.
Press the LEFT or RIGHT buttons to adjust the DHW Boiler Setpoint then press the OK
button to store the setting.
Default: 75°C
DHW Settings
DHW Operation Enabled
Demand Sensor
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Dierential 3°C
DHW Storage Adder 15°C
DHW Settings
DHW Operation Enabled
Demand Sensor
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Dierential 3°C
DHW Storage Adder 15°C
DHW
Setpoint
60°C
20°C 80°C
DHW Setpoint is the domestic hot water storage setpoint temperature when the Sensor
option is chosen in Demand Type.
Press the LEFT or RIGHT buttons to adjust the DHW Storage Setpoint then press the OK
button to store the setting.
Default: 60°C
The boiler setpoint is automatically set to the DHW Storage Setpoint + DHW Storage
adder when the Sensor option is chosen in DHW demand
DHW Settings
DHW Operation Enabled
Demand Sensor
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Dierential 3°C
DHW Storage Adder 15°C
DHW On Dierential
3°C
2°C 10°C
DHW On Dierential sets how far the DHW storage temperature must fall below the
DHW Storage Setpoint to create a domestic hot water call when the Sensor option is
chosen in Demand Type. The domestic hot water call will end when the DHW storage
temperature rises above the DHW Storage Setpoint.
Press the LEFT or RIGHT buttons to adjust the DHW On Dierential then press the OK
button to store the setting.
Default: 3°C
The DHW on differential setting greatly affects the production of domestic hot water.
A low setting could result in a rapid response to a domestic hot water call resulting in a
potential scald hazard. It is strongly recommended that the installer use a thermostatic
mixing valve on the hot water outlet of the Indirect Water Heater. Failure to comply
could result in severe personal injury, death, or substantial property damage.
16


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