CTRLMax Manual

20
CHAPTER 4
DHW Setting
CHAPTER 4 - DHW SETTINGS (INSTINCT COMBI ONLY)
DHW Setting
DHW Operation Enabled
DHW Setpoint 140°F
DHW on Dierential 18°F
Warmstart Temperature 126°F
Warmstart Hysteresis 30°F
DHW Post Pump Time 2 min
DHW Setting
DHW Operation Enabled
DHW Setpoint 140°F
DHW on Dierential 18°F
Warmstart Temperature 126°F
Warmstart Hysteresis 30°F
DHW Post Pump Time 2 min
DHW Setting
DHW Operation Enabled
DHW Setpoint 140°F
DHW on Dierential 18°F
Warmstart Temperature 126°F
Warmstart Hysteresis 30°F
DHW Post Pump Time 2 min
DHW On Dierential
6°F
4°F 18°F
DHW On Dierential sets how far the DHW temperature of
the storage tank must fall below the DHW Setpoint to create
a domestic hot water call. This is dened by the sensor of the
external DHW storage tank connected to the appliance. The
domestic hot water call will end when the DHW storage tank
temperature rises above the DHW setpoint.
Adjust the DHW On Dierential value using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default: 18°F
Warmstart Temperature sets the desired temperature to keep
the hydroblock at, in order to speed up hot water delivery time.
Adjust the Warmstart Temperature using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default: 125°F [52°C].
DHW Warmstart Hysteresis sets how low the internal Do-
mestic Hot Water temperature must fall (between 9°F (5K) and
36°F (20K)) the Warmstart Temperature to activate the Warm-
start function.
Adjust the DHW Warmstart Hysteresis value using the LEFT or
RIGHT keys, then store the setting with the OK key.
Default: 30°F [17°C].
The DHW on differential setting greatly affects
the production of domestic hot water. A low set-
ting could result in a rapid response to a domestic
hot water call resulting in a potential scald haz-
ard. It is strongly recommended that the installer
use a thermostatic mixing valve on the hot water
outlet of the storage tank. Failure to comply can
result in substantial property damage, serious in-
jury, or death.
WARNING
Warmstart Temperature
125°F
86°F
O
140°F
Warmstart Hysteresis
30°F
9 36°F
DHW Setting
DHW Operation Enabled
DHW Setpoint 140°F
DHW on Dierential 18°F
Warmstart Temperature 126°F
Warmstart Hysteresis 30°F
DHW Post Pump Time 2 min
DHW Post
Pump Time
2 min
O 30 min
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 Time value using the LEFT or
RIGHT keys, then store the setting with the OK key.
Default : 2 min.
CTRLMax_w Instinct_UK version_222171_A01.indd 20 18/07/2019 18:38