Orion System VCM-X E-BUS Component - Manual (Page 14)

VCM-X Component & Systems Wiring 14
System Installation
Loop Containing VCM-X E-BUS Controller with
Non-Modular VAV/Zone Controllers and MiniLink PD Only
1. Connect 2 conductor shielded cable from the VCM-X
E-BUS Controller’s 3 wire communications connector to
the MiniLink PD’s 3 wire communications connector
marked
“ Local Loop”. Using 18 gauge minimum, 2
wire cable for power, install a 24 VAC, 8 VA minimum,
transformer for the VCM-X E-BUS Controller and wire
from the transformer to the VCM-X E-BUS Controller.
Also connect a 24 VAC 6 VA minimum transformer
to the MiniLink PD power terminals using 18 gauge
minimum, 2 wire cable. Then wire from the VCM-X
E-BUS Controller’s 3 wire communications connector
or the MiniLink PD’s 3 wire communications connector
marked ”Local Loop” to the fi rst VAV/Zone Controller’s
3 wire communications terminals. Using 18 gauge
minimum, 2 wire cable, connect all of the associated
Non-Modular VAV/Zone Controllers in a daisy chain
format using 18 gauge, 2 conductor shielded cable for
communications. Using 18 gauge minimum, 2 wire
cable for power, install a 24 VAC, 6 VA minimum,
transformer for each Non-Modular VAV/Zone Controller
and wire from each transformer to its VAV/Zone
Controller. WattMaster recommends you use a separate
transformer for each VAV/Zone Controller as stated.
As an alternative, it is allowable to have several Non-
Modular VAV/Zone Controllers share one properly sized
transformer (6 VA per VAV/Zone Controller). Warning:
Polarity must be observed on all of the VAV/Zone
Controllers or damage to the controllers will result. Use
18 gauge minimum, 2 wire cable for all power wiring
and be sure to maintain polarity on all boards.
2. The Modular System Manager can connect to any VAV/
Zone Controller or to the VCM-X E-BUS Controller.
Use the supplied pigtail cable which has a modular
connector for connection to the back of the Modular
System Manager and wire to any controller on the
communications local loop with communication wire
terminals. A separate transformer is required for the
Modular System Manager. Connect the 2 power wires
from the pigtail connector to a 24 VAC transformer. The
transformer should be sized to provide 6 VA minimum
power. The Communications setting must be set to Lo
Speed Network Mode.
3. The Modular Service Tool SD will connect to any of the
controllers using the supplied cable with DIN connectors
on both ends. The connection point on the controller
is located near the communications connector. The
Communications setting must be set to Lo Speed
Network Mode.
4. The System Manager TS II utilizes a 3 wire
communication terminal block for connection to any
controller on the communications local loop that has
communication wire terminals. A separate transformer
is required for the System Manager TS II. It has a 2
wire 24 VAC terminal block for connection to a 24 VAC
transformer. The transformer should be sized to provide
6 VA minimum power and should be connected using 18
gauge minimum wire. In the Settings Menu, enter <63>
for the System Manager Address.
5. Before powering up the controllers, set each VAV/
Zone Controller’s board address to a unique number
from 1 through 58. Address the VCM-X E-BUS
Controller at 59. Set MiniLink PD’s address at 1.
Loop Containing VCM-X E-BUS Controller with Modular
VAV/Zone Controllers and CommLink 5 Only
1. Connect all controllers in a daisy chain format
using 18 gauge, 2 conductor shielded cable for
communications. Using 18 gauge minimum, 2 wire
cable for power, install a 24 VAC, 8 VA minimum,
transformer for the VCM-X E-BUS Controller and
wire from transformer to the VCM-X E-BUS
Controller. Using 18 gauge minimum, 2 wire cable
for power, install a separate 24 VAC, transformer sized
for the required VA load for each Power/Comm board on
the loop and wire from each transformer to its Power/
Comm board. Observe polarity on all boards.
2. Use 18 gauge minimum, 2 wire cable for all 24 VAC
power wiring. Be sure to maintain polarity on all boards.
Use the 110 VAC/24 VAC power supply furnished with
the CommLink for its power source.
3. Using 2 conductor shielded cable, connect from the
CommLink 5’s 3 wire communications connector to the
Power/Comm board’s or VCM-X E-BUS Controller’s 3
wire communications input connector. The Loop switch
on the back of the CommLink 5 should be set to
“Single”.
4. Using modular cables, connect from the Power/Comm
board’s modular output connectors to the VAV/
Zone Controllers. The VAV/Zone Controllers connect
together using modular cables from each VAV/Zone
Controller to the next controller and/or to a Power/
Comm board. A maximum of 16 VAV/Zone Controllers
are allowed per Power/Comm board. If you have more
than 16 VAV/Zone Controllers, you will need multiple
Power/Comm boards. Each Power/Comm board must
have its own 24 VAC transformer sized for the total
number of VAV/Zone Controllers connected to it.
5. The Modular System Manager can connect to any VAV/
Zone Controller or directly to one of the Power/Comm
board’s modular output connectors. The
Communications setting must be set to Lo Speed
Network Mode.
Networked Single Loop