Johnson Controls METASYS VAV111 User Manual

VAV Controller—Variable Air Volume (VAV) Controller 39
The Zone Bus allows you to connect CBLPRO or the Zone Terminal to the
VAV Controller. With CBLPRO connected, use HVAC PRO for Windows
for commissioning downloading and uploading. The Zone Bus is available
for connection at Metastat or a zone temperature sensor.
Connect power to the relay module and the transformer through the conduit
knockouts in each box. Wire the module according to the following
diagram, an example of a VAV140/141 wired to an RLY50/002. All BOs
must be isolated from earth ground. VAV110/111 connections are similar.
A
B
BO 1
24 V
BO 2
A
B
HAND
OFF
HOA
COM
CO
M
NC
NO
CO
M
NC
NO
A
S-RLY50-0 / AS-RLYOO2
-
VAV
BI 4
BICOM
BI 3
TRIAC
COILS
Note 3
Note 1
Note 2
High Voltag
e
Low Voltage
vavrelay
Note 1: Separate low voltage and line wiring with line voltage on the right.
Note 2: Hand operation using the H-O-A (Hand-Off-Auto) switch requires 24 VAC to the COILS terminal
and COM to the TRIAC terminal to energize the relay.
Note 3: The Hand or Off position signals the binary input connected to those terminals. These switches
can be hardwire “OR”ed and connected to one BI. This switch uses the HOA COM terminal,
which is isolated from the relays.
Note 4: Choose BIs desired for H-O-A feedback.
Figure 14: VAV140/141 Wired to RLY50/002
!
CAUTION: Possible Equipment Damage or Electrical Shock.
Disconnect power circuit before wiring Relay Kit.
You can obtain a DPDT (Double-Pull, Double-Throw) relay configuration
by connecting the BO signal to two terminals on the Relay Kit terminal
block (e.g., B and C).
If you require a phone jack at a remote RLY kit, add an AS-CBLCON-0.
For additional information, refer to the Grounding and Isolation section of
this technical bulletin.
57F58F59FZone Bus
Wiring to
RLY50/002
Relays

Johnson Controls METASYS VAV111 Specifications

General

Brand	Johnson Controls
Model	METASYS VAV111
Category	Controller
Language	English