Technical Guide
Operator Interfaces
14
Programming The WMVAV Controller
Configuration Screen #12
WMVAV Config ID 59
CO2 Sensor Maximum
Reading: 2000 PPM
Enter 0 If No Sensor
If you install the default CO
2
sensor, it will be a 0-10 VDC device that
provides 0-2000 PPM readings. Make sure this is set to the 2000 PPM
level unless you have installed your own sensor with a different scaling
range.
Configuration Screen #13
WMVAV Config ID 59
Air to Air Heat Pump
Control: NO
[0=NO 1=YES]
The WMVAV controller can be configured to operate as an Air To Air
Heat Pump Controller. If you make this selection, the same relays are
used to stage the compressors in both the heating and cooling modes.
The only difference is that a separate Reversing Valve relay will acti-
vate in the heating mode to enable heating to occur. You must configure
at least one relay for the reversing valve.
You can also configure for an Auxiliary Heat relay that will activate
whenever the supply air drops below the supply setpoint by 5°F, to
provide heat when the outdoor air is too cold for the heating mode to
operate correctly.
Configuration Screen #14
WMVAV Config ID 59
Broadcast Time Clock
to Loop Units: NO
[0=NO 1=YES]
This enables the WMVAV Controller to send its real time clock infor-
mation to all controllers on the local loop. This must be used when
connecting VAVBOX Controllers on the local loop, but can be used to
synchronize clock time in all controllers on the local loop.
Configuration Screen #15
WMVAV Config ID 59
Broadcast Outside
Temperature: NO
[0=NO 1=YES]
This enables the WMVAV Controller to send its outdoor air tempera-
ture reading to all other controllers on the entire system. It is specifi-
cally used when more than one HVAC unit is installed, and only one
outdoor air sensor is used to supply its signal to all controllers.
Configuration Screen #16
WMVAV Config ID 59
Broadcast Supply
Temperature: NO
[0=NO 1=YES]
This enables the WMVAV Controller to send its supply air temperature
reading to all controllers that do not have there own sensor on the local
loop. This is standard for VAVBOX applications.
Configuration Screen #17
WMVAV Config ID 59
Broadcast Humidity
Reading: NO
[0=NO 1=YES]
This enables the WMVAV Controller to send its relative humidity read-
ing to all other controllers on the entire system. It is specifically used
when more than one HVAC unit is installed, and only one relative hu-
midity sensor is used to supply its signal to all controllers.
Configuration Screen #18
WMVAV Config ID 59
Broadcast Internal
Schedule: NO
[0=NO 1=YES]
This enables the WMVAV Controller to send its Occupied and Unoccu-
pied status to the VAVBOX Controllers on the local loop.
Configuration Screen #19
WMVAV Config ID 59
Broadcast Status
Fan & Heat: NO
[0=NO 1=YES]
This enables the WMVAV Controller to send status information on
whether the HVAC unit main fan is running, or if it is in heat mode, to
the VAVBOX Controllers on the local loop. This enable is required
when VAVBOX Controllers have heating stages or are fan-powered.
firealarmresources.com
