Install Instructions
7 | PIR Ready VT7300 Series-Installation Guide 
Main outputs wiring 
2 Pipe applications 
4 Pipe applications 
On-Off control 
VT7300C5x00(x), VT7305C5x00(x), VT7350C5x00(x) & VT7355C5x00(x) 
Remote inputs ( All models )
BI 1
RS
Scom
BI 2
UI 3
OR
Contact
- Rem NSB
- Motion
- Window
Contact
- Door
- Remote Override
- Filter alarm
- service alarm
Remote wall sensor
- S3010W1000
- S3020W1000
SS ( supply sensor )
- S1010E1000
- S2000D1000
COS ( changeover sensor )
- S1010E1000
COC/NH
- Normally heat
- Closed contact = cold water
COC/NC
- Normally cool
- Closed contact = heat water
#4 24 V~ Hot 
#5 24 V~ Com 
#6  
#7  
#4 24 V~ Hot 
#5 24 V~ Com 
#6  
#7  
Auxiliary output ( All models ) 
- Dry contact to end device 24 V~ maximum 
- 24 VAC power to relay 
R 
R 
Heating / Cooling valve 
24 VAC 
Com 
OR 
24 V~ Hot  
24 V~ Com 
BO1 
if N.O. 
BO2 
if N.C. 
24 V~ Hot  
24 V~ Com 
BO3  
if N.O. 
BO4 
if N.C. 
BO1 
if N.O. 
BO2 
if N.C. 
24 Vac 
Com 
Heating valve 
Cooling valve 
24 Vac 
Com 
OR 
OR 
24 VAC 
Com 
Heating valve 
Cooling valve 
24 VAC 
Com 
OR 
OR 
