Installation and operation manual
1
EKEX EKEXDCBAV3
Option kit for combination of Daikin condensing units
with field supplied evaporators
4PW30903-1
C
ONTENTS
Page
Introduction ............................................................... 1
Installation ................................................................. 1
Accessories....................................................................................... 1
Name and function of parts ............................................................... 2
Before installation.............................................................................. 2
Selecting the installation site............................................................. 2
Valve kit installation ........................................................................... 3
Installation of the electrical control box ............................................. 4
Electric wiring work ........................................................................... 4
Installation of thermistors .................................................................. 7
Refrigerant piping work ..................................................................... 8
Test operation.................................................................................... 8
Operation and maintenance ..................................... 8
What to do before operation.............................................................. 8
Operation and display signals ........................................................... 9
Troubleshooting ................................................................................. 9
Maintenance.................................................................................... 10
Disposal requirements .................................................................... 10
I
NTRODUCTION
We distinguish 2 different control boxes, each with its own application
and installation requirements.
■
EKEXFCB control box (2 possible operation modes)
■
Operation with 0–10 V input to control the capacity
An external controller is needed to control the capacity. For
details of the necessary functions of the external controller
refer to paragraph
"Operation with 0–10 V capacity control"
on page 8
. It can be used to control the room temperature or
air discharge temperature.
■
Operation with fixed T
e
temperature control
This system operates on a fixed evaporating temperature.
■
EKEXDCB control box
The system will operate as a standard indoor unit to control the
room temperature. This system does not require a specific
external controller.
I
NSTALLATION
A
CCESSORIES
Obligatory accessory
Refer to chapter
"Valve kit installation" on page 3
for installation
instructions.
Optional accessories
EKEXFCBAV3
EKEXDCBAV3
Option kit for combination of Daikin condensing units
with field supplied evaporators
Installation and
operation manual
READ THESE INSTRUCTIONS CAREFULLY BEFORE
INSTALLATION AND OPERATION.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DAIKIN DEALER FOR
ADVICE AND INFORMATION.
■
Do only use this system in combination with a field
supplied air handling unit. Do not connect this system
to other indoor units.
■
Only optional controls as listed in the optional
accessories list can be used.
EKEXFCB
EKEXDCB
Thermistor (R1T)
—
1
Thermistor (R3T/R2T)
(2.5 m cable)
2
Insulation sheet
2
Rubber sheet
2
Wire to wire splice
4
6
Installation and
operation manual
1
Screw nut
6
8
Tie wrap
6
Capacity setting
adaptor
7
Stopper (closing cup)
2
—
EKEXFCB
EKEXDCB
Expansion valve kit
EKEXV
EKEXFCB
EKEXDCB
Remote controller
1
(*)
(*)
Not required for operation, only useful accessory tool for service and installation.
1
