Honeywell CVL4022ASVAV1 Engineering Manual page 71

Net Data Type
Nv/field SNVT
flow SNVT_flow
nviFlowTrack
nviFree1Dig switch
nviFree1Mod lev_percent
nviHtgOvr SNVT_
hvac_overid
state ubyte
percent SNVT_
lev_percent
flow SNVT_flow
Table 21. Network Variable - Inputs (Continued)
AP Internal
Units
cfm
flow
%
%
Manual flow value (cfm). The value used when nviFlowOverride.state is
set to a value of "2".
range 0 ... 138858 cfm
This NVI is bound to the nvoFlowTrack of the previous node in the flow
tracking daisy chain.
≤ ≤
0 range 138850 cfm
Notes:
If a Spyder II VAV box is connected, verify that nvoFlowTrack
SendHeartBeat ≤ 5 sec
The Free1Dig input allows a network variable input to control a user
determined binary load with an unused digital output(s) or floating output
synchronization. The "Free1" digital output is intended to drive a non-
latching relay while the "FreePulseOn" and "FreePulseOff" digital outputs
are intended to drive a latching relay. One second pulses are applied to
the latching relays when the input network variable changes state.
State Value
Off Don't care
On 0
On Not Zero
Null Don't care
The Free1Mod output allows a network variable input to control:
Actuator with an unused analog output
Peripheral heat valve minimum position
≤ ≤
0 range 100%
Heating override. Applies to peripheral heat & reheat.
Notes:
This override duplicates the functionality of nviValveOvrd.
Use nviHtgOvr to command peripheral and reheat valves simultaneously.
0 = no override (normal operation)
1 = manual reheat & peripheral flow position
4 = open reheat & peripheral valve
5 = close reheat & peripheral valve
(all others) = no override
Manual percent flow value.
range 0 ... 100 %
Ignored
71
Description
Meaning
The corresponding free logical output (and
therefore the physical output, if
configured) is off.
The corresponding free logical output (and
therefore the physical output, if
configured) is off. If the node receives this
combination of state and value, then state
is set to Off
The corresponding free logical output (and
therefore the physical output, if
configured) is on.
The network variable is not bound, the
communications path from the sending
node has failed, or the sending node has
failed. The corresponding free logical
output does not change if the network
variable input fails.
31-00083—02