22
PARALLEL SHIFT VALUE
(PARAMETER 20)
The Parallel Shift Feature is available when a constant
CH demand is selected for the CH operating signal with
Parameter 45.
Parallel Shift Value
(Parameter 20)
When a constant CH demand is selected for the CH
operating signal with Parameter 45, a continuous heat-
ing call is generated. The outdoor reset function will cal-
culate the CH setpoint based on the settings of
Parameters 4,10,11,12. If the room thermostat terminals
are open, the CH setpoint will decrease by the setting of
this parameter. When the room thermostat terminals are
closed, the CH setpoint will return to the setpoint calcu-
lated by the outdoor reset function.
Parameter 20 Adjustment
To change Parameter 20, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA
Press the STEP button to reach Parameter 20.
Press the “+” or “–“ button to change the setting of
Parameter 20 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
The factory setting of 00°F is the OFF position. The
CH setpoint will not decrease if the room thermostat
terminals are open.
NOTICE
CH CIRCULATOR POST PUMP
TIME
PERIOD
(PARAMETER 32)
At the completion of a heating call, the CH circulator will
continue to operate for a time period set by Parameter
32.
CH Circulator Post Pump Time
(Parameter 32)
The post pump feature allows the heat remaining in the
boiler to be sent to the heating system, which will
improve the overall efficiency of the system.
A minimum setting of 00 results in a CH circulator
post pump time of 10 seconds. The 10 second CH
circulator post pump cycle can not be disabled and
the system should be designed to allow for this
water flow.
Parameter 32 Adjustment
To change Parameter 32, requires entering the Access
Code as outlined on page 2. After entering the Access
Code, press the MODE button until the display shows
PARA
. Press the STEP button to reach Parameter 32.
Press the “+” or “–“ button to change the setting of
Parameter 32 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
NOTICE
Содержание Prestige Supplement - Type 5 MCBA
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