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ICE A/C & HEX Combo Unit I&O Manual 07/2020 Rev.1
2.4 Electrical Installation
The electrical installation of the air conditioner includes:
1. Make sure that the supply power is OFF.
2. Connect the power cable and the input terminal according to the schematic diagram
for power terminal, and tighten the screws.
3. Connect the signal cable to the signal input terminal according to the definition,
and plug the terminal to the unit’s relevant place according to the customer’s
requirement.
4. Check whether any short circuit or open circuit exists on the power input cable and
signal cable with the current meter.
IMPORTANT
All the electrical connections should comply with the standards of the national
and local electrical codes. You must disconnect any power supplies for the air
conditioner before beginning installation.
WARNING FIRE HAZARD
Improper adjustment, alteration, service, maintenance or installation could cause
serious injury, death and/or property damage.
Installation or repairs made by unqualified persons could result in hazards to
you and others. Installation MUST conform with local codes or, in the absence of
local codes, with codes of all governmental authorities have jurisdiction.
The information contained in this manual is intended for use by a qualified
service agency that is experienced in such work, is familiar with all precautions
and safety procedures required in such work, and is equipped with the proper
tools and test instruments.
The power connection should match the marking on the wiring, It is recommended that
the input circuit breaker be at least 16A.Some models’ temperature sensor is externally
located. Check to be sure the wiring input is correct and securely connected.
2.5 Power Input Cables
IMPORTANT
Please refer to the specific wiring diagram on the unit.
AC Power
Connector
DC Power
Connector
Figure 3. Wiring Diagram
AC Power Input:
Power input cable includes: AC power input cable and -48VDC power input cable.
Signal Input:
Signal cable includes: communication cable and alarm output cable.
