DEFAULT SETTINGS & MENU ITEM DESCRIPTIONS
HeatNet Control V3 3.x
Page 109
COMBUST AIR
DAMPER
TYPE
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 Figure 58,
Common system damper wiring, page 90. Also see Section:
Optional
Features: Auxiliary 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 Figure 58, Common system damper
wiring, page 90. Needs to Prove the damper is open.
INPUT:
J12B.7
DAMPER
The damper prove input is dedicated to connect at J12B terminals 7
and 8. If using a common damper refer to the common damper
wiring diagram.
PROOF TIME
2:00
(0
– 4min)
This is the proving time in minutes for the combustion air damper
prove switch. It is sensed at J12B Pin 7. If the damper faults, a retry
will occur every 10 minutes in attempt to open the damper.
When using J12B in a common damper configuration, wiring is done
beginning with the MASTER boiler. See Figure 58 for common
damper wiring on page 81.
RUN IN LOCAL IF:
H-NET
COMMUNICATIONS
LOST
OFF
OFF, ON
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 are re-established or this entry is set to OFF.
LOW TEMPERATURE
SENSOR
NONE
NONE, RETURN,
HEADER, SUPPLY
This entry may be set to one of the temperature sensors: SUPPLY,
HEADER, RETURN, or set to NONE (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 < 40
°
F
40
°
F
35-200
°
F
This is the temperature that the selected sensor must fall below for
the boiler to start.