Table of Contents
Advertisement
16 INSTALLATION (ELECTRIC) AND SERVICE INSTRUCTIONS
Take the following into consideration when designing the control box:
1. To ensure sufficient airflow for cooling, provide air vents (holes, slots, etc.) on the upper, lower, left and right sides of the box, as
shown in the figure below. (Be sure not to clog the ventilation hole when setting.)
Ensure that the temperature inside the control box does not exceed 104°F.
Control box example
2. Keep the power and communications signal lines as far apart as possible (at least 2 inch, if cabled inside the control box) to reduce
the effects of electrical noise.
Wiring example
Note
● Do not run the indoor/outdoor communication
lines, communication adaptor control lines, input/
output lines, and power cables through the same
conduit, or twist those cables together, or place
the cables near one another. It can cause
malfunction.
● Install the main unit away from any sources of
electrical noise.
● Avoid installing in any locations where the unit
may come into contact with water, or in any
extremely humid locations.
● Avoid installing in any location that is subject to
excessive vibration or physical impacts.
(1) Obtain the installation screws for the main unit on
site.
(2) To connect the power cable, attach a conduit to
the hole of the upper right side and pass the
power cable through it as illustrated on the right.
(3) Tie up the power cable with a snap band to avoid
contact with the signal lines (communication
signal lines and input/output signal lines) inside
the main unit.
2
Mounting
2
Mounting
Caution
● Do not route communications signal lines or input / output signal lines close to power supply lines, or routing them through the same
conduit. Doing so may result in malfunction.
● Mount the unit far away from potential noise sources.
● Do not mount the unit where it could get wet, or in areas of high humidity.
● Do not mount the unit where it could be subject to excessive vibration or shocks.
● Mount the unit inside a control box.
(1) Remove the two pan-head bolts from the lower sides and bottom of the front panel.
(2) Mount the controller unit to the control box using the four supplied bolts, washers, and nuts.
(3) Replace the front panel.
CZ-256ESMC1U̲改.indb 97
CZ-256ESMC1U̲改.indb 97
4.0 in ch min.
6.0 inch min.
4.0 in ch min.
control box (interior)
4.0 inch min.
air vents (bottom)
97
air vents (side)
2.0 inch min.
air vents (side)
Conduit
(Power cables)
Communication signal lines
Input/output signal lines
2011/11/11 11:25:58
2011/11/11 11:25:58
Advertisement
Table of Contents
