General Installation Guidelines; Nd Control; Electrical Cables; Electrical Power - Varifan IC-68ND Installation Manual

3. General installation guidelines

3.1 IC-68 Control
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• It is recommended to install the unit in a hallway to limit the IC-68
• In order to avoid condensation problems inside the controller, it is recommended to install the
IC-68 on an inside wall. If it is not possible, use spacers to have an air gap between the
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wall and the IC-68
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• It is required to install the IC-68
• The enclosure is watertight, but not splash proof or immersion proof. DO NOT WATER the
control. Cover it carefully with plastic when cleaning the room.
• The IC-68
should be installed in easy access location but away from damaging elements
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(heat, cold, water, direct sunlight, ...).
• It is recommended to punch out knock outs by striking them at the bottom near the back of
the case (see figure 2).
• Do not drill the face, the side, the top or the underside of the control.
• Do not install the IC-68

3.2 Electrical Cables

• All electrical cables must be installed according to local wiring codes.
• All cable shields must be connected to the IC-68
connected to the optional PC interface (see SVPC-40 guide). The shield is needed to protect
the IC-68 and the modules against any electromagnetic interference generated by
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lightning or nearby operating machinery.
• Never use the shield as a conductor.
• Connect only one end of the shield to the ground of the IC-68
• Use separate conduit for the low voltage cables (communication and probes) and the high
voltage cables. There must be at least 1 foot (30 cm) between low voltage and high voltage
conduits.
• If a low voltage cable have to cross over a high voltage cable, make this crossing at 90°.
• All cable connections must be soldered or done with approved sealed connectors.
• Probe cables must be 500 ' (150m) or less.
• Communication cables must be 750 ' (250m) or less.
• It is prohibited to use overhead cables outside the building.

3.3 Electrical Power

• Protection from electrical surge should be included in the planning of each installation.
• Every module should have a separate breaker to avoid serious consequences.
• Certain control modules (VSM-2, VSM-2/2, VPM-2, VPM-1 and CIP-1) require the same
phase and same voltage as the IC-68
• It is strongly recommended to have a backup power source to ensure life-sustaining
conditions in case of power failure (see figure 5).
• It is also strongly recommended to put a backup thermostat to sufficient fan and heating
system parallel to the IC-68
• Backup system and alarm must be thoroughly tested and verified as working properly before
using the ventilation system.
IC-68 INSTALLATION GUIDE
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.
side up with the cable entry holes facing down (see figure 1).
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control near high voltage equipment, power supply or transformer.
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to operate.
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module output (see figure 6).
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www.monitrol.com
's exposure to noxious gases.
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power ground only, except for the cable
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.
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4