Johnson Controls M4-CVM03050, Installation Manual

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ATTENTION
Risque de dommages matériels:
Ne mettez pas l’appareil sous tension avant d’avoir
vérifié toutes les connexions du câblage. Le câblage
inadéquat de cette borne peut causer un court-circuit
sur l’alimentation électrique de 24 V c. Un court-cir-
cuit peut causer le déclenchement du disjoncteur ou
le grillage d’un fusible. Si vous utilisez un transforma-
teur avec un fusible intégré, vous pourriez devoir rem-
placer le transformateur.
To wire the CVM03050 controller, complete the
following steps:
1. Terminate wiring according to the appropriate
figure in Termination diagrams .
2. Wire network sensors and other devices to the
SA Bus.
3. Wire the FC Bus in a daisy chain.
4. Ensure that the CVM03050 is assigned a device
address. Set the device address using the rotary
switches at the top of the controller. See Setting
the device address .
5. Connect the CVM controller to 24 VAC, Class 2
power.
Note: If you are using the CVM03050 controller
with the Wireless Field Bus System, refer
to the WNC1800/ZFR182x Pro Series Wireless
Field Bus System Bulletin (LIT-12012320) or the
ZFR1800 Series Wireless Field Bus System Bulletin
(LIT-12011336) .
Terminal wiring guidelines,
functions, ratings, and requirements
This section provides further guidelines on input
and output wiring, maximum cable length versus
load current, and SA Bus and supply power wiring.
For information about removing a terminal block
from the controller, see Removing a terminal block .
Input and Output wiring guidelines
Table 5 provides information and guidelines about
the functions, ratings, and requirements for the
controller input and output terminals, and Table 5
also references guidelines for determining proper
wire sizes and cable lengths.
In addition to the wiring guidelines in Table 5,
observe the following guidelines when wiring CVM
inputs and outputs:
• Run all low-voltage wiring and cables separate
from high-voltage wiring.
• All input and output cables, regardless of wire
size or number of wires, must consist of twisted,
insulated, and stranded copper wires.
• Shielded cable is not required for input or output
cables but is recommended for input and output
cables that are exposed to high electromagnetic
or radio frequency noise.
• Cable runs of less than 30 m (100 ft) often do not
require an offset in the input/output software
setup.
• Cable runs over 30 m (100 ft) often require an
offset in the input/output software setup.
M4-CVM03050 VAV Controllers Installation Guide 8