18
CH OPERATING SIGNAL SELECTION
(PARAMETER 45)
The type of heating call signal can be changed with
Parameter 45. The boiler can be set to operate with a
constant CH demand or a heating call can be initiated
from a room thermostat or an analog 0 – 10 VDC signal
from an external control system.
CH Operating Signal Selection Options
(Parameter 45)
Room Thermostat - Factory Setting
(Parameter 45 = 00)
The heating call is initiated from a switched dry contact
such as a room thermostat or zone panel.
Constant CH Demand
(Parameter 45 = 01)
The heating call is continuous but can be blocked with
Parameter 18.
0 – 10 VDC Analog Signal on Prestige
(Parameter 45 = 02)
The heating call is initiated from an external modulating
boiler controller wired directly to the boiler.
0 – 10 VDC Analog Signal on AM-4
(Parameter 45 = 03)
The heating call is initiated from an external modulating
boiler controller wired to an AM-4 interface module.
Parameter 45 Adjustment
To change Parameter 45, 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 45.
Press the “+” or “–“ button to change the setting of
Parameter 45 to the desired setting. Press the STORE
button and confirm that the display blinks to indicate the
setting has been stored.
Parameter 45 has multiple settings available in
addition to the settings listed. DO NOT set
Parameter 45 to any setting other than those listed
above. Failure to comply can result in erratic or
unreliable operation of the Prestige Boiler.
WARNING
Содержание Prestige Supplement - Type 5 MCBA
Страница 6: ...4 DOMESTIC HOT WATER DHW PARAMETERS...
Страница 14: ...12 CENTRAL HEATING CH PARAMETERS...
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