CTRLMax Manual

11
CHAPTER 2
CH Settings
CHAPTER 2 - CH SETTINGS
Heating Settings
Warm Weather Shutdown O
Circulation Pump Perman. Disabled
CH Post Pump Time 5 min
Freeze Protection Enabled
Frost Protection Setpoint -22°F
Parallel Shift 0°F
Parallel Shift Value
0°F
0°F 144°F
Heating Settings
Circulation Pump Perman. Disabled
CH Post Pump Time 5 min
Freeze Protection Enabled
Frost Protection Setpoint -22°F
Parallel Shift 0°F
CH Call Blocking 2 min
Heating Settings
CH Post Pump Time 5 min
Freeze Protection Enabled
Frost Protection Setpoint -22°F
Parallel Shift 0°F
CH Call Blocking 2 min
Appliance min CH setpoint 60°F
CH Call Blocking
2 min.
0 min. 30 min.
Appliance min. CH
Setpoint
60°F
60°F 188°F
Parallel Shift allows the CH setpoint to be externally adjusted
when a Constant option is chosen in Demand Type. When a
Constant option is chosen in Demand Type, continuous CH1
and CH2 heating calls are generated. Simultaneous CH1 and
CH2 calls will result in the Appliance operating at the highest
CH1 or CH2 setpoint. The CH1 or CH2 Thermostat terminals
with the highest setpoint will be used to adjust the setpoint. If
the Thermostat terminals with the highest setpoint are open,
the CH setpoint will decrease by the Parallel Shift Value. If the
Thermostat terminals with the highest setpoint are closed, the
CH setpoint will return to the highest CH1 or CH2 setpoint
Adjust the Parallel Shift Value using the LEFT or RIGHT keys,
then store the setting with the OK key.
Default: 0°F
CH Call Blocking sets the minimum time between burner
rings for central heating calls. At the completion of a burn-
er ring, the CH Call Blocking time will begin. The burner
will not re again until after the CH Call Blocking time has
elapsed. The CH Call Blocking time only prevents the burn-
er from ring, the central heating circulators will respond
to a central heating call. This blocking time has no aect
on domestic hot water calls. The CH Call Blocking feature
prevents short cycling of the burner and extends the life of
the burner components.
Adjust the CH Call Blocking value using the LEFT or RIGHT
keys, then store the setting with the OK key.
Default: 2 min.
Appliance min CH Setpoint - The minimum setpoint can
be reduced when the heating system is needing it to de-
frost installations.
Adjust the Appliance min. CH Setpoint using the LEFT or
RIGHT keys, then store the setting with the OK key.
Default: 60°F.
CTRLMax_w Instinct_UK version_222171_A01.indd 11 18/07/2019 18:38