12
DHW Priority
Enabled
Disabled
3.0
DHW Settings
3.7
DHW Storage Adder
Default: 46°F [25°C]
DHW Storage Adder is used to compute the boiler setpoint when the
Sensor option is chosen in DHW Demand. The boiler setpoint will be
DHW Se DHW Storage Adder for a domestic hot water call.
Press the
LEFT
or
RIGHT
buttons to adjust the DHW Storage Adder
then press the
OK
button to store the setting.
3.8
DHW Post Pump Time
Default: 2 Minute
DHW Post Pump Time sets how long the circulators configured for
domestic hot water calls in Pump Settings will continue to operate at the
completion of a domestic hot water call. The DHW Post Pump feature
allows the heat remaining in the boiler at the completion of a call to be
sent to the Indirect Water Heater, which will improve the overall effi-
ciency of the system. Press the
LEFT
or
RIGHT
buttons to adjust the
DHW Post Pump Time then press the
OK
button to store the setting.
3.9
DHW Priority Timeout
Default: Off
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. Press the
LEFT
or
RIGHT
buttons to
adjust the DHW Priority Timeout then press the
OK
button to store the
setting.
3.10 DHW Priority
Default: Enabled
DHW Priority allows the domestic hot water priority function to be
enabled and disabled. Press the
UP
or
DOWN
buttons to select Enabled
or Disabled then press the
OK
button to store the setting.
•
Enabled
- Domestic hot water calls will have priority over a central
heating call. The boiler setpoint will be set to the domestic hot
water setpoint during a domestic hot water call. The DHW circu-
lator 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 boiler setpoint will be set to the domestic
hot water setpoint when only a domestic hot water call is present.
The boiler setpoint will be set to the highest setpoint when simul-
10ºF
54ºF
28ºF
DHW
Storage Adder
Off
30 min.
2 min.
DHW
Post Pump Time
Off
120 min.
Off
DHW Priority Timeout
2015-10 Prestige ACVMax Control Sup 12-14-15_ACVMax_Control 12/15/15 7:36 AM Page 12
