CTRLMax Manual

15
CHAPTER 3
CHAPTER 3 - DHW SETTINGS (PRESTIGE, HEATMASTER AND INSTINCT SOLO)
DHW Setting
DHW Setting
DHW maximum capacity 100%
DHW Boiler Setpoint 168°F
DHW Setpoint 140°F
DHW on Dierential 6°F
DHW Storage Adder 28°F
DHW Post Pump Time 2 min
DHW Post
Pump Time
2 min
O 30 min
DHW Setting
DHW Boiler Setpoint 168°F
DHW Setpoint 140°F
DHW on Dierential 6°F
DHW Storage Adder 28°F
DHW Post Pump Time 2 min
DHW Priority Timeout O
DHW Priority Timeout
O
O 120 min.
DHW Setting
DHW Setpoint 140°F
DHW on Dierential 6°F
DHW Storage Adder 28°F
DHW Post Pump Time 2 min
DHW Priority Timeout O
DHW Priority Enabled
DHW Priority
Enabled
Disabled
DHW Post Pump Time sets how long the domestic hot water cir-
culator 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 eciency of the system.
Adjust the DHW Post Pump value using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default : 2 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.
Adjust the DHW Priority Timeout value using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default: O
DHW Priority allows the domestic hot water priority function to
be enabled and disabled.
Select Enabled or Disabled using the UP or DOWN keys, then
store the setting with the OK key.
• 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 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 appliance setpoint will be set to the
domestic hot water setpoint when only a domestic hot wa-
ter 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 circu-
lators will be enabled during a central heating call.
Default: Enabled
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 re-
quired to protect the lower temperature zones from damage.
NOTICE
DHW Setting
Demand Sensor
DHW maximum capacity 100%
DHW Boiler Setpoint 168°F
DHW Setpoint 140°F
DHW on Dierential 6°F
DHW Storage Adder 28°F
DHW Storage Adder
28°F
10°F 54°F
DHW Storage Adder is used to compute the appliance set-
point when the Sensor option is chosen in Demand Type. The
appliance setpoint will be DHW Storage Setpoint + DHW Stor-
age Adder for a domestic hot water call.
Adjust the DHW Storage Adder value using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default: 28°F
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