Bard TCS22-***-003 manual Mounting, High Voltage Wiring

3.0INSTALLATION

This section discusses mounting and wiring of the TCS22 into the building. Also included is an installation checklist to be completed by the installing contractor. See installation instructions supplied with the Bard Wall-Mount air conditioners for information on installing the air conditioners.

This controller should be installed and serviced by a qualified service technician only.

3.1Mounting

TCS22 should be mounted on a flat vertical surface four (4) to six (6) feet from the floor of the building. When choosing a suitable location take into consideration that the electrical connections can be made from the back or top of the TCS22. See Figure 3 for rear electrical entrance locations.

The TCS22 is secured to the wall with four (4) - 1/4 inch fasteners with flat washers. Hollow wall anchors or lag bolts are suitable as dictated by the wall construction. See Figure 3 for a bolt pattern layout drawing.

!WARNING

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•HAZARD OF ELECTRIC SHOCK.

•ELECTRIC SHOCK CAN RESULT IN SERIOUS INJURY OR DEATH.

•DISCONNECT THE REMOTE ELECTRIC POWER SUPPLIES BEFORE SERVICING.

3.2Wiring

Electrical connections can be made from the back or top of the TCS22. All wiring should exit the TCS22 in conduit. Use the supplied wire ties and cable holders to route unit low voltage, communication, and sensor wiring neatly. Avoid looping excess wire. See Figure 2 for suggested conduit connections.

Never connect or disconnect wiring from the controller with power connected to the controller or to either of the Bard Wall-Mount air- conditioners.

3.2.1HIGH VOLTAGE WIRING

IMPORTANT: High voltage wiring must not be run in the same conduit as low voltage control or sensor wiring. Failure to comply with this requirement will result in poor or no remote communication and/or in inaccurate sensor reading.

Supply power is 208/240 VAC, 50/60 Hz, 1 Phase at 3 amps minimum circuit ampacity. A 3 amp circuit breaker is supplied as part of the TCS22. This circuit breaker is for internal circuit protection only and cannot be used as a disconnect. Supply wire size should be 18 ga. or larger. Use Copper Conductors Only. All wiring must comply with the applicable sections of the National Electrical Code ( NEC) and any applicable local codes.

The TCS22 is shipped for 240 VAC operation . For 208 Volt operation change both transformer primaries in the TCS22 to the 208 volt tap. See Wiring Diagram. The acceptable operating voltage ranges for the 240 and 208 volt taps are:

Connect the high voltage power supply to Terminal Block TB2. Connect ground wire to the ground connector provided. TCS22 must be grounded for proper operation. Failure to ground the controller may cause erratic controller operation and inaccurate sensor operation. See Figure 2 and the wiring diagram.