ICS Tunnel Master Jr, Руководство пользователя

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Tunnel Master® Jr. User Manual - Page 5
Chapter 2: Hardware Installation
Relay Box Mounting
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The relay box must be securely mounted to the wall in the equipment room of the car
wash. The relay box is designed to be located in a dry, non-corrosive environment.
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The relay box must be located so that conduit connections can be easily made, and the
relays can be readily accessed.
Relay Box Wiring
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Install one approved 3/4” conduit from the relay box to the entrance keypad box located
near the front of the wash tunnel. All conduit runs should meet all local and national
codes. Conduits shall be properly connected and securely fastened to the boxes with
Listed conduit hubs, and should be tightened to the torque specs of the manufacturer.
Over torquing may cause enclosure breakage.
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Electrician must provide a dedicated 120 VAC circuit to power the relay box.
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Run a 14-3 cable to the 120 VAC terminal block. It is labeled with L and N for Load and
Neutral, respectively. There is a mechanical ground lug located on the back of the
box adjacent to the terminal block. It is labeled with the universal ground symbol.
Terminations for the shielded cable should be torqued to 35 pound-inches.
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Electrician must supply a separate 24 VAC and 120 VAC circuit to the common (C) side of
the upper and lower termination points of each relay respectively, then loop the commons
together to each relay. This power is to fire the solenoids and equipment.
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A separation of 120 VAC and 24 VAC shall be maintained for all field-wiring circuits. All 24
VAC circuits must be supplied by a class 2 transformer.
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Tighten all wires on the circuit board in the relay box to 20 pound-inches (2.3 n-m.) Over
torquing may cause enclosure breakage.
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Relays in the relay box are double pole with independent commons so that each relay
can have two circuits running through it. Commons are independent to provide a power
source to switch two devices through either the normally open or normally closed circuits.
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Relays circuits should be supplied with no greater than 120 VAC 15 Amp.
NOTE:
†
This 120 VAC MUST BE A SEPARATE CIRCUIT from the dedicated 120 VAC circuit terminated
in the lower-left corner of the Relay Box.
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A 6.3 Amp 250V fuse protects each relay. Four spare fuses along with LED fuse test
indicators are located at the center of the relay board. (Fuses should not be replaced with
any other device.)
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Another approved ¾” conduit needs to be run to your motor control center to the relay
box, and will contain the low voltage wires for clock (Pulse), gate (Entrance switch), and
Tire switch functions.
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When using a normally open 2-wire pulse switch, use terminals marked CLK SINK and
PROX GND.
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When using a normally open 3-wire pulse switch, use terminals marked PROX PWR, CLK
SINK, and PROX GND.
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Gate and Tire inputs require a constant 24 VAC neutral supplied from a class 2 transformer.
The load signal would be terminated to the normally open pole of the electric eye (Gate)
switch.