11
3.4
DHW Boiler Setpoint
Default: 168ºF [76ºC]
DHW Boiler Setpoint is the fixed boiler setpoint temperature during a
domestic hot water call when the Thermostat option is chosen in DHW
Demand. Press the
LEFT
or
RIGHT
buttons to adjust the DHW Boiler
Setpoint then press the
OK
button to store the setting.
3.5
DHW Setpoint
Default: 140°F [60°C]
DHW Setpoint is the domestic hot water storage setpoint temperature
when the Sensor option is chosen in DHW Demand. Press the
LEFT
or
RIGHT
buttons to adjust the DHW Setpoint then press the
OK
button to
store the setting.
The boiler setpoint is automatically set to the DHW Se
DHW Storage Adder when the Sensor option is chosen in DHW
Demand. The boiler setpoint is limited to 194°F [90°C].
3.6
DHW On Differential
Default: 6°F [3°C]
DHW On Differential sets how far the DHW storage temperature must fall
below the DHW Setpoint to create a domestic hot water call when the
Sensor option is chosen in DHW Demand. The domestic hot water call
will end when the DHW storage temperature rises above the DHW
Setpoint. Press the
LEFT
or
RIGHT
buttons to adjust the DHW On
Differential then press the
OK
button to store the setting.
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 uti-
lize 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.
NOTICE
DANGER
3.0
DHW Settings
96ºF
188ºF
168ºF
DHW
Boiler Setpoint
4ºF
18ºF
6ºF
DHW On Differential
68ºF
176ºF
140ºF
DHW Setpoint
2015-10 Prestige ACVMax Control Sup 12-14-15_ACVMax_Control 12/15/15 7:36 AM Page 11