DEFAULT SETTINGS & MENU ITEM DESCRIPTIONS
HeatNet Control REV 1.38-1
Page 48
AUX FUNCTIONS
COMBUST AIR
DAMPER
LINKED/COMMON
INDEPENDENT
The LINKED/COMMON setting allows one common damper
to be used and controlled by the Master Boiler. All Member
boilers must
have their damper prove inputs wired as per
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Section:
Optional Features: Auxilliary Function Options
INDEPENDENT: Individual dampers are in controlled by their
respective boiler.
IN USE?
YES
If set to YES, then OUTPUT RELAY K5 can be used to
control a combustion air damper. The Master can control a
common system damper or an individual damper. Members
control their respective damper independent of the Master.
Relay K5 is used to enable the combustion air damper. See
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Needs to Prove the damper is open.
INPUT:
J10B
DAMPER
There are (2) inputs that may be used for the Combustion Air
Damper. The first is located at J10B terminals 1 and 2
(legacy compatibility). The second input is located at J12B
terminals 7 and 8.
PROOF TIME
2:00
(0 – 4min)
This is the proving time in minutes for the combustion air
damper prove switch. It is sensed at SPARE 1 on J10B or
J12B Pin 7. If J10B is used (legacy), Sensor #5 must be set
to ON/OFF in the sensors menu in order to detect the prove
switch being made. If the damper faults, a retry will occur
every 10 minutes in attempt to open the damper.
If Using J12B in a common damper configuration, wiring is
done beginning with the Master boiler. J12B Pins 7,8 are
connected to the prove switch of the combustion damper. Pin
8 is supplying 24 VAC and pin 7 is the sense input. A second
wire is connected to J12B pin 7 of the Master and the other
end connected to the first member boilers J12B pin 7. If
another member boiler is present, connect another wire to
the J12B Pin 7 terminal of the first member and the other end
to the second member boiler J12B pin 7. Continue this
method for each additional boiler.
ALARM SILENCE
ALARM SILENCE IN
USE?
YES
This menu allows the configuration of the Alarm Silence
switch. It can be disabled so that the Alarm Silence switch
can not silence the alarm until the alarm is cleared; ALARM
SILENCE = NO. The default value is to enable the ALARM
SILENCE switch.
INPUT =
J10B SPARE 2
This setting allows the Alarm Switch to be looked at using
another input. This input should not be changed, but allows
for custom configurations to resolve conflicts.
FAILSAFE MODES
RUN IN LOCAL IF:
H-NET COMM LOST
OFF
If this entry is set to ON and the Member boiler does not see
any communications coming from the Master boiler, this
boiler will run in LOCAL. The boiler will continue to run in
LOCAL until communications is re-established or this entry is
set to OFF.
LOW TEMP
OFF
This entry may be set to one of the temperature sensors:
SUPPLY, HEADER, RETURN, or turned OFF (default). If
this entry is set to a sensor and the temperature falls below
TEMP, the boiler will automatically start and run the water
temperature up to the LOCAL Setpoint and then shut OFF.
TEMP < 40F
40
°
F
35-200
°
F
This is the temperature that the selected sensor must fall
below for the boiler to start.
