16
Boiler Operating Temperature
-
Boiler Operating Temperature High Limit
(parameter 4) on page 15
-
Boiler Operating Temperature Low Limit (param-
eter 5) on page 15
Boiler Operational Function Options :
-
Burner and CH Circulator Function Options
(Parameter 3) on pages 19 through 21.
-
CH Circulator Post Operation (Parameter 20) on
page 24
-
CH Heat Request Blocking Time (Parameter 28)
on page 25
Application / System Options:
-
Burner Blocking Temperature (Parameter 10) on
page 22
-
System Boost Feature (Parameter 11) on page
22-24
CH APPLICATION FUNCTION SETTING -
OUTDOOR TEMPERATURE
The CH operating temperature is controlled and estab-
lished by the use of an outdoor sensor measuring the
outdoor temperature. In this application the Prestige can
maintain constant flow through the system and maintain
a constant request for heat. The burner function is
based on the outdoor temperature reading and its rela-
tionship to the maximum and minimum allowable oper-
ating temperature in Parameters 4 and 5. This applica-
tion requires the use of a 12k NTC sensor, reference
Triangle Tube’s Outdoor Sensor Kit, connected to the
appropriate 24V terminals on the Prestige.
T
he use of a room thermostat is not required typ-
ically in this application. The room thermostat
has no control over the CH burner function or
the CH circulator function. The room thermostat
does provide other application options such as
Parallel Shift / Night Setback.
To operate the Prestige under this application mode sev-
eral Parameters must be revised to establish the
required operating temperatures for the application. To
configure the MCBA control to react based on the out-
door temperature, Parameter 34 must be revised
accordingly and any corresponding parameters will be
defined in detail in later sections.
NOTICE
40
80
120
160
200
Min.
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Fig. 1: Setting the Boiler Operating Limits
