Samsung AG026TN1DKH/EU, Installation Manual

21

English

Installation Pr

oc

edur

e

  CAUTION

•  After connecting the drain pipe to the fan coil unit, be 

sure to perform a leak test. 
Failure to do so may cause water to leak into the room, 
leading to property damage.

•  Before servicing, first remove the condensation water 

from the fan coil unit drain pan.

•  When pouring water on the drain pan or the hole for 

the drain test, be sure not to overflow.

•  The leak test must be performed for at least 24 hours.

Step 10  Connecting the power and 

communication cables

1 

Power and communication cable connection
•  Before wiring work, you must turn off all power 

source.

•  Connect the power and communication cables 

between the fan coil units in the electrical panel 
within maximum length so that the voltage drop is 
under 10%.

•  Install an auxiliary circuit breaker (ELCB, MCCB, 

ELB) with sufficient capacity by considering the 
number of fan coil units to be connected to it.

•  Connect F3 and F4 of the fan coil unit terminal 

block to the communication cable of the wired 
remote control.

•  Tighten the electric wires with a proper tool within 

the torque limit to connect and fix them firmly, and 
then organize the wires to prevent outside pressure 
being exerted on the covers and other parts.  
Failure to do so may result in overheating, electric 
shock, and fire.

•  To protect the product from water and possible 

shock, you should keep the power and the 
communication cables in an iron pipe.

•  Connect the power cable to the auxiliary circuit 

breaker (ELCB, MCCB, ELB).

•  Keep a distance of 50 mm or more mm between 

the power cable and the communication cable.

Torque limit (N

࡛

m)

M3

0.5~0.75

M3.5

0.8~1.2

M4

1.2~1.8

Fan coil unit 1

Fan coil unit 2

Fan coil unit 3

Wired remote 

control

or

MCCB+ 

ELB

* Must  be 

installed.

  CAUTION

•  The circuit diagram given above shows only wiring 

schematic, and the details of the actual installation are 
not presented.

•  The standard specification is that the power supply 

for the fan coil unit should be separate from that for a 
heat source such as a chiller.

•  Never branch the terminal block power supply cable 

from one fan coil unit to two fan coil units.

•  When peeling the power cable, use a special tool for it 

to prevent damage to the inner sheaths.

•  Make sure that more than 20 mm of the outer sheaths 

of the fan coil unit's power and communication cables 
are inserted inside the electrical part.

•  Separate each communication cable from the power 

cable and other communication cables.

•  When wiring, make sure that the connecting wire is 

loosened properly.