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System Control - ACVMax: 660Y2800 • C
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APPLIANCE DESCRIPTION AND OPERATION
CH & DHW Settings / Heating Settings (Cont’d)
Heating Settings
CH2 Min. Setpoint
27°C
Warm Weather Shutdown
Off
Circulation Pump Permanent
Disabled
CH Post Pump Time
5 min
Freeze Protection
Enabled
Frost Protection Setpoint
-30°C
Heating Settings
Warm Weather Shutdown
Off
Circulation Pump Permanent
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
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 Prestige 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 set-
point will return to the highest CH1 or CH2 setpoint
Press the
LEFT
or
RIGHT
buttons to adjust the Parallel Shift Value then press the
OK
button to store the setting.
Default: 0°C
Heating Settings
Circulation Pump Permanent
Disabled
CH Post Pump Time
5 min
Freeze Protection
Enabled
Frost Protection Setpoint
-30°C
Parallel Shift
0°C
CH Call Blocking
2 min
CH Call Blocking
2 min.
0 min.
30 min.
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.
Press the
LEFT
or
RIGHT
buttons to adjust the Parallel Shift Value then press the
OK
button to store the setting.
Default: 2 min.