Terminal Identification; Wiring - Viconics VT7300A5000 Manual

Vt7300 series 24 vac low voltage fan coil thermostats for commercial and lodging hvac applications
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Terminal identification

Viconics Part Numbers
Description / Application
Internal Temperature
Internal Humidity
1- High Fan Speed
2- Medium Fan Speed
3- Low Fan Speed
4- 24 V~ Hot
5- 24 V~ Com
6- Aux BO 5
7- Aux BO 5
8- BO 3 Open Heat
9- BO 4 Close Heat
10- BO 1 Open Cool
11- BO 2 Close Cool
12- BI #1
13- RS
14- Scom
15- BI #2
16- UI #3 COS / COC /SS

Wiring

Power & Fan ( All models )
Fan-H
Fan-M
Fan-L
24 V~ Hot
24 V~ Com
Remote inputs ( All models )
BI 1
RS
Scom
BI 2
UI 3
Auxiliary output ( All models )
- Dry contact to end device 24 V~ maximum
#4 24 V~ Hot
#5 24 V~ Com
#6
#7
- 24 Vac power to relay
#4 24 V~ Hot
#5 24 V~ Com
#6
#7
R
VT73xxA5x00(x)
2 & 4 Pipe On/Off
X
Fan-H
Fan-M
Fan-L
24 V~ Hot
24 V~ Com
BO 5-Aux
BO 5-Aux
BO 3
BO 2
BI 1
RS
Scom
BI 2
UI 3
24 V~ transformer relay pack
3 speed
2 speed
Single speed
High
High
Med
Low
Low
Contact
- Rem NSB
Remote wall sensor
- Motion
- S3010W1000
- Window
- S3020W1000
Contact
- Door
- Remote Override
- Filter alarm
- service alarm
R
VT73xxC5x00(x)
Viconics Number
2 & 4 Pipe Floating
Description / Application
2 & 4 Pipe On/Off
X
Internal Temperature
Model Dependent
Internal Humidity
Fan-H
1- High Fan Speed
Fan-M
2- Medium Fan Speed
Fan-L
3- Low Fan Speed
4- 24 V~ Hot
24 V~ Hot
24 V~ Com
5- 24 V~ Com
BO 5-Aux
6- Aux BO 5
BO 5-Aux
7- Aux BO 5
BO 3
BO 4
9- AO 2 Heat
BO 1
10- AO 1 Cool
BO 2
Not used Blank
BI 1
12- BI #1
13- RS
RS
Scom
14- Scom
BI 2
15- BI #2
UI 3
16- UI #3 COS / COC /SS
High
SS ( supply sensor )
- S1010E1000
- S2000D1000
COS ( changeover sensor )
- S1010E1000
OR
COC/NH
- Normally heat
- Closed contact = cold water
COC/NC
- Normally cool
- Closed contact = heat water
4
VT73xxF5x00(x)
2 & 4 Pipe Analog
X
Model Dependent
Fan-H
Fan-M
Fan-L
24 V~ Hot
24 V~ Com
BO 5-Aux
BO 5-Aux
AO 2
AO 1
Blank
BI 1
RS
Scom
BI 2
UI 3

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