ACV ACVMax Touch, Installer'S Handbook, Page: 17 / 48

17
Installer's Handbook (Evo) - 660Y3000 • A
EN
DHW Setting
DHW Setting
DHW Boost Enabled
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Differential 3°C
DHW Storage Adder 15°C
DHW Post Pump Time 2 min
DHW Post Pump Time sets how long the domestic hot water circulator will continue to operate at the completion of a domestic
hot water call. Any call during the DHW Post Pump Time will be ignored until the post pump has completed. The DHW Post Pump
feature allows the heat remaining in the appliance at the completion of a call to be sent to the Indirect Water Heater, which will
improve the overall efficiency of the system.
Touch the
LEFT or RIGHT soft keys to adjust the DHW Post Pump Time then touch the OK key to store the setting.
Default : 1 min.
DHW Priority Timeout allows the installer to enter an optional time limit that a domestic hot water call has priority over a central
heating call when DHW Priority is set to Enabled.
Touch the LEFT or RIGHT soft keys to adjust the DHW Priority Timeout then touch the OK key to store the setting.
Default: Off
DHW Priority allows the domestic hot water priority function to be enabled and disabled.
Touch the UP or DOWN soft keys to select Enabled or Disabled then touch the OK key to store the setting.
•
Enabled - Domestic hot water calls will have priority over a central heating call. The appliance setpoint will be set to the domestic hot water
setpoint during a domestic hot water call. The DHW circulator will be enabled and the heating circulators will be disabled during a domestic
hot water call.
•
Disabled - Domestic hot water calls will not have priority over a central heating call. The appliance setpoint will be set to the
domestic hot water setpoint when only a domestic hot water call is present. The appliance setpoint will be set to the highest
setpoint when simultaneous domestic hot water and central heating calls are present. The DHW circulator will be enabled
during a domestic hot water call. The heating circulators will be enabled during a central heating call.
Default: Enabled
DHW Post
Pump Time
2 min
Off 30 min
DHW Setting
DHW Boiler Setpoint 75°C
DHW Setpoint 60°C
DHW on Differential 3°C
DHW Storage Adder 15°C
DHW Post Pump Time 2 min
DHW Priority Timeout Off
DHW Priority Timeout
Off
Off 120 min.
DHW Setting
DHW Setpoint 60°C
DHW on Differential 3°C
DHW Storage Adder 15°C
DHW Post Pump Time 2 min
DHW Priority Timeout Off
DHW Priority Enabled
DHW Priority
Enabled
Disabled
Simultaneous domestic hot water and central heating calls will result in the Appliance operating at the highest target
temperature when DHW Priority is set to disabled. The use of a mixing device on the lower temperature zones may be
required to protect the lower temperature zones from damage.
DHW Call Blocking sets the minimum time between burner firings for domestic hot water calls. At the completion of a burner firing, the
DHW Call Blocking time will begin. The burner will not fire again until after the DHW Call Blocking time has elapsed. The DHW Call Blocking
time only prevents the burner from firing, the domestic hot water circulator will respond to a domestic hot water call. This blocking time has
no affect on central heating calls. The DHW Call Blocking feature prevents short cycling of the burner and extends the life of the burner
components.
Touch the
LEFT or RIGHT soft keys to adjust the DHW Call Blocking time then touch the OK key to store the setting.
Default: 0 min .
DHW Setting
DHW on Differential 3°C
DHW Storage Adder 15°C
DHW Post Pump Time 2 min
DHW Priority Timeout Off
DHW Priority Enabled
DHW Call Blocking 0 min
DHW Call
Blocking
0 min.
0 min. 30 min.
DESCRIPTION AND OPERATION