beautypg.com

Terminal, identification and function, Wiring – Viconics VZ7656F Wireless Installation Guide User Manual

Page 6

background image

6 | VZ7656F1000W Installation Guide

T

ERMINAL

,

I

DENTIFICATION AND

F

UNCTION

Wiring

Terminal Use

Terminal

Identification

Description

1

– Cool 2

Y2

Output for cooling / compressor stage
number 2.

2

– Cool 1

Y1

Output for cooling / compressor stage
number 1.

3 - Fan

G

Output for the fan.

4 - 24 V ~ Hot

RC

Power supply of controller, hot side
(Delivered from the RTU).

5 - 0 V ~ Com

C

Power supply of controller, common side.
Also used as reference for the analog BPD
output when used (Delivered from the
RTU).

7

– Not Used

Not Used

Not Used

8- Auxiliary Output

AU

Auxiliary output used to disable economizer
damper minimum position or control lighting
during unoccupied periods.

9

– By-pass damper

BPD

Local analog 0 - 10 VDC by-pass damper /
VFD output.

10

– Analog Heat Output

AO

0-10 VDC analog heating output.

11

– Static pressure

SP

Local analog 0

– 5 VDC static pressure

input.

12 - DI1

DI

Configurable extra digital input. See
parameter section for more information.

13 - RS

RS

Return air temperature sensor input. If
sensor fails, controller will use the on-board
thermistor sensor to control if the
communication is lost.

14 - Scom

Scom

Reference input for DI 1, RS, OS & DS.

15 - OS

OS

Outside air temperature sensor input.

16 - DS

DS

Discharge air temperature sensor input.