Network Variable - Inputs - Honeywell CVL4022ASVAV1 Engineering Manual

NETWORK VARIABLE - INPUTS

Net Data Type
Nv/field SNVT
nviApplicMode hvac_mode
nviBypass switch
value
state
nviDlcShed SNVT_
switch
value
state
nviDschrgAirTemp temp_p
Table 21. Network Variable - Inputs
AP Internal
Units
hvac_mode This network input is used to switch between off, auto, heating and
cooling.
0 – Auto reheating and cooling enabled
1 – Heat enabled (warm air is supplied) and reheat is enabled.
2 – Morning warm-up (warm air is supplied) and reheat follows the
nciHeat.MornWarm configuration.
3 – Cooling enabled (cool air is supplied) reheat locked out. Use this mode
to disable reheat when boiler hot water is unavailable.
4– night purge (outdoor air is supplied)
6 – fan, heating and cooling off
9 – Fan Only, no heating or cooling
All other inputs ignored.
Network occupancy bypass command.
Note that the network bypass command has priority over the network
occupancy override input (nviOccCmd).
State
1
0
Null
1
Val-ubyte
percent 0 = none
1 = Bypass
Network command for Demand Limit Control
Notes:
When DLC is active, the control loop setpoint is shifted ncidlcShiftSpt in
the energy savings direction.
When DLC is inactive, the control loop normal setpoint is restored using a
30 minute ramp.
ignored
VAL-ubyte 0 = no DLC
1 = DLC active, shift room setpoint (ncidlcShiftSpt)
F Discharge air temperature
Typically used as an override to the local input.
≤ ≤
32 range
69
Description
Value
Not zero The node should bypass the time of day
schedule (subject to occupancy arbitration
logic).
Don't care The input is not available because it is not
bound, the input is no longer being
updated by the sender, or Bypass is no
longer being called. This means that the
same as Off.
Don't care The node should not bypass the time of
day schedule
0 The node should not bypass the time of
day schedule. If the node receives this
combination of state and value, then state
is set to Off.
212 F
Meaning
31-00083—02