CTRLMax Manual

21
CHAPTER 4
CHAPTER 4 - DHW SETTINGS (INSTINCT COMBI ONLY)
DHW Setting
DHW Setting
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 Priority Timeout O
DHW Priority Timeout
O
O 120 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 To CH Call Blocking sets the minimum time between a DHW
burner ring and a CH burner ring. At the completion of a DHW
burner ring, the DHW to CH Call Blocking time will begin. The burn-
er will not re again for a central heating call until after the DHW To
CH Call Blocking time has elapsed. This feature only prevents the
burner from ring, the central heating circulators will respond to a
central heating call. This blocking time has no eect on domestic hot
water calls. The DHW To CH Call Blocking feature prevents the burner
from ring when switching from a domestic hot water call to a cen-
tral heating call. This allows the remaining heat in the heat exchanger
to be dissipated and potentially satisfy the central heating call.
Adjust the DHW to CH Call Blocking value using the LEFT or
RIGHT keys, then store the setting with the OK key.
Default: 1 min.
DHW Setting
Warmstart Temperature 126°F
Warmstart Hysteresis 30°F
DHW Post Pump Time 2 min
DHW Call Blocking 0 min
DHW Priority Timeout O
DHW to CH Call Blocking 1 min
DHW to CH
Call Blocking
1 min.
0 min. 30 min.
DHW Setting
DHW on Dierential 18°F
Warmstart Temperature 126°F
Warmstart Hysteresis 30°F
DHW Post Pump Time 2 min
DHW Priority Timeout O
DHW Call Blocking 0 min
DHW Call
Blocking
0 min.
0 min. 30 min.
DHW Call Blocking sets the minimum time between burner rings
for domestic hot water calls. At the completion of a burner ring, the
DHW Call Blocking time will begin. The burner will not re again until
after the DHW Call Blocking time has elapsed. The DHW Call Blocking
time only prevents the burner from ring, the domestic hot water cir-
culator will respond to a domestic hot water call. This blocking time
has no aect on central heating calls. The DHW Call Blocking feature
prevents short cycling of the burner and extends the life of the burn-
er components.
Adjust the DHW Call Blocking value using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default: 0 min.
CTRLMax_w Instinct_UK version_222171_A01.indd 21 18/07/2019 18:38