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14
Installer's Handbook (Evo) - 660Y3000 • A
EN
CH Settings
Parallel Shift allows the CH setpoint to be externally adjusted when a Constant option is chosen in Demand Type. When a Con-
stant 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
Touch the
LEFT or RIGHT soft keys to adjust the Parallel Shift Value then touch the OK key to store the setting.
Default: 0°C
CH Call Blocking sets the minimum time between burner firings for central heating calls. At the completion of a burner firing,
the CH Call Blocking time will begin. The burner will not fire again until after the CH Call Blocking time has elapsed. The CH
Call Blocking time only prevents the burner from firing, the central heating circulators will respond to a central heating call. This
blocking time has no affect on domestic hot water calls. The CH Call Blocking feature prevents short cycling of the burner and
extends the life of the burner components.
Touch the
LEFT or RIGHT soft keys to adjust the Parallel Shift Value then touch the OK key to store the setting.
Default: 2 min.
Appliance min CH Setpoint - The minimum setpoint can be reduced when the heating system is needing it to defrost installa-
tions.
Touch the
LEFT or RIGHT soft keys to adjust the Appliance min CH Setpoint value then touch the OK key to store the setting.
Default: 27°C
Heating Settings
Warm Weather Shutdown Off
Circulation Pump Perman. Disabled
CH Post Pump Time 5 min
Freeze Protection Enabled
Frost Protection Setpoint -30°C
Parallel Shift 0°C
Parallel Shift Value
0°C
0°C 80°C
Heating Settings
Circulation Pump Perman. Disabled
CH Post Pump Time 5 min
Freeze Protection Enabled
Frost Protection Setpoint -30°C
Parallel Shift 0°C
CH Call Blocking 2 min
Heating Settings
CH Post Pump Time 5 min
Freeze Protection Enabled
Frost Protection Setpoint -30°C
Parallel Shift 0°C
CH Call Blocking 2 min
Appliance Min CH Setpoint 27°C
CH Call Blocking
2 min.
0 min. 30 min.
Appliance min. CH
Setpoint
27°C
15°C 87°C
DESCRIPTION AND OPERATION