Johnson Controls LX Series - Nviapplicmode

LX Series Unit Ventilator Controller User's Guide88
nviApplicMode
You can use this network variable input to coordinate the Unit Ventilator
Controller with the following devices:
• air handler controller
• any other supervisory controller
• human interface device
Type: SNVT_hvac_mode (108)
nviCO2
Transmits CO
2
level from a network device to the Unit Ventilator Controller.
Network values have priority over local sensor values.
Type: SNVT_ppm (29)
nviDischargeTemp
Transmits discharge temperature from a network device to the LX-UVL-1.
Network values have priority over local sensor values.
Type: SNVT_temp_p (105)
nviEconoEnable
This network variable input receives the economizer enable demand. When the
state and value are not set to zero, the economizer is enabled. When the state or
value is set to zero, the water state is disabled.
Type: SNVT_hvac_emerg
Table 28: nviApplicMode
Value Identifier Notes
0 HVAC_AUTO Controller automatically changes between application
modes.
1 HVAC_HEAT Heating only.
2 HVAC_MRNG_WRMUP Application-specific morning warm up.
3 HVAC_COOL Cooling only.
4 HVAC_NIGHT_PURGE Application-specific night purge.
5 HVAC_PRE_COOL
Application-specific pre-cool
1
.
1. Not supported in the Unit Ventilator Controller.
6 HVAC_OFF Controller not controlling outputs.
7 HVAC_TEST
Equipment being tested
1
.
8 HVAC_EMERG_HEAT
Emergency heat mode
1
.
9 HVAC_FAN_ONLY Air not conditioned, fan turned on.
10 HVAC_FREE_COOL
Cooling with compressor not running
1
.
11 HVAC_ICE
Ice-making mode
1
.
0xFF HVAC_NUL Value not available.