cH Settings
9
freeze Protection should only be disabled when the system con-
tains antifreeze to prevent the system from freezing. Serious dam-
age could occur to the Prestige as well as the entire heating system
if freeze Protection is disabled without antifreeze in the system.
The Prestige should nEVER be installed in a location where
freezing could occur. Subjecting the Prestige to freezing condi-
tions could lead to freezing of the condensate possibly causing
serious injury or death.
frost Protection Setpoint
default: -22ºf [-30ºc]
Frost Protection will enable the central heating circulators if the outdoor
temperature falls below the Frost Protection Setpoint and no call is present.
This feature requires using the outdoor temperature sensor and is always
active and cannot be disabled. Press the
LEfT
or
RIGHT
buttons to adjust
the Frost Protection Setpoint then press the
oK
button to store the setting.
Table 2: frost Protection circulator operation
Parallel Shift Value
default: 0°f [0°c]
Parallel Shift allows the CH setpoint to be externally adjusted when a
Constant option is chosen in CH Demand. When a Constant option is cho-
sen in CH Demand, 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 setpoint 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.
cH call Blocking
default: 1 Minute
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 CH Call Blocking
time then press the
oK
button to store the setting.
WARNING
WARNING
-22ºF
50ºF
-22ºF
Frost Protection
Setpoint
0ºF
144ºF
0ºF
Parallel Shift Value
0 min.
30 min.
1 min.
CH Call Blocking
Prestige Model
CH2 Pump/
System Pump
Auxillary
Boiler Pump
DHW
Pump
CH (1)
Pump
Solo
ON
ON
OFF
ON
Excellence
ON
ON
OFF
OFF
Содержание Prestige Excellence
Страница 13: ...11 cH Settings fig 2 System Piping with System Pump cH1 cH2 dHW...
Страница 14: ...12 cH Settings fig 3 System Piping with System Pump cH1 cH2...
Страница 15: ...13 fig 4 System Piping with System Pump cH2 cH Settings...
Страница 33: ...31 cascade Installation fig 11 Split cascade Wiring note Reference Fig 10 page 30 for cascade piping...
