028-0506-02_II-VZ8250_EN www.viconics.com
January 2020
7
VZ8250
[
Installation Guide
]
3. TYPICAL APPLICATION: PRESSURE INDEPENDENT (NO FAN)
CHANGEOVER
SENSOR
Com.
Sens.
SUPPLY AIR
TEMP. SENSOR
OPTIONAL
Com.
Sens.
FLOW SENSOR
Com.
RC
Output
13 14 15 16 17 18
19 20 21 22 23 24
B
A
Cnet
+
B
A
Cnet
-
B
A
Cnet REF
UI16
UI17
Common
UI19
- CS
UI20
- RS
C (Common)
UI22
- SS
UI23
UI24
- 0-10V Input
BO1
BO2
BO3
BO4
- F
an On
R
C (24V
A
C)
C (Common)
RH
BO8
- Aux Hea
t
UO9
- Close Damp
.
UO10
- Open V
alv
e
UO11
- 0-10V Output
UO12
- 0-10V Output
0-10V Analog Control
7 8 9 10 11 12
1 2 3 4 5 6
Spacer
BASEBOARD 24V~
24V
Com.
0-10V ANALOG
HEATING COIL
Com.
Input
RC
Input
RC
0-10V ANALOG ACTUATOR
DAMPER
Com.
COMMON
24 VAC
FAN HI
FAN MED
FAN LO
Low-voltage
TERMINAL BLOCK
Configuration Parameter Name
Configuration Settings
VAV box type
PI
Actuator type
0-10V DA
Fan type
None
Reheat configuration
Duct + baseboard
Duct heater
0-10V DA
Baseboard configuration
PWM VAC
Refer to the VZ8250
Application Guide
for more information on the “Sequence of Operations and Wiring”.