Mitsubishi Heavy Industries EEVKIT6-E-C/A User manual

EEVKIT6-E-C/A, /B
Manual No.'19・KX-T-336
TECHNICAL MANUAL
EEV-KIT
For single refrigeration system
Preliminary information, all of contents are subject to final confirmation by MHI.
In this manual, For multiple refrigeration system of EEV-KIT is shown.
Regarding the others manual please see below table.
General information '19 •KX-T-335
No.
'19 •KX-T-337
For multiple refrigeration system (EEVKIT6-E-M/A, /B, -C/A, /B)
Manual
updated February 24, 2021

-
1
-
'19 • KX-T-336
Contents
1. What is a single refrigeration system ....................................................... 2
1.1 System A ................................................................................................. 2
1.2 System B ................................................................................................. 5
2. Components of a single refrigeration system ......................................... 8
3. Functions ..................................................................................................... 9
3.1 SW1- SW5 (Address setting) .................................................................. 17
3.2 SW6 (Model capacity selection) ............................................................. 18
3.3 SW7 (Function setting) ........................................................................... 18
3.4 Switching return/supply air temperature control ................................. 19
3.5 Target supply air temperature adjustment (heating mode) ................. 26
3.6 Auto mode changeover temperature ..................................................... 26
3.7 Automatic supply air temperature adjust control ................................ 27
3.8 Free cooling control ................................................................................ 27
4. Outdoor unit ................................................................................................. 28
5. Summary ...................................................................................................... 31
6. Instruction of how to replace indoor unit control PCB ............................ 32

-
2
-
'19 • KX-T-336
1. What is a single refrigeration system
• A single refrigeration system is one that can have multiple outdoor units on one
refrigerant pipe work circuit.
• There are 2 types of EEV-KIT systems that can be built into the single refrigeration
system.
• System A : one EEV-KIT.
• System B : multiple EEV-KIT’s.
1.1 System A
This system has only one set of EEV-KIT built into one indoor unit with only one heat
exchanger. This system can be applied to an indoor unit whose capacity is up to
10HP.
• One EEV-KIT controls one EEV
• Maximum capacity is 10HP (equivalent to 280)
• Capacity setting of EEV-Control Box is required (default : 280)
Sensor （5pcs）
Thi-A
Thi-R1
Thi-R2
Thi-R3
Thi-AF
EEV-Control ASSY
EEVKIT6-E-C/A
Single refrigeraon system
ＦＡＮ
EEV-Set
EEV-Control BOX
Sensors （5pcs）
Thi-A
Thi-R1
Thi-R2
Thi-R3
Thi-AF
EEV-KIT
EEV-Control box
EEV-Set
Strainer
EEV
Strainer
EEV-Control ASSY

-
3
-
'19 • KX-T-336
Total capacity limitation
Unit type Maximum indoor unit
capacity include EEV-KIT
1Air-conditioning mode
(STANDARD pressure control mode）
Same as normal KXE6 or KXZE1
(Max : 130% - 200%)
2Fresh air mode
(TYPE1 pressure control mode）100%
Fresh air mode
：
100% fresh air intake without total heat exchanger
(same as FDU-F units)
Sensors
Thi-A 䠖Sucon air temperature sensor
Thi-AF 䠖Supply air temperature sensor
Thi-R1,R2,R3 䠖Heat exchanger temperature sensor
Thi-R1
Thi-R2 Thi-R3
Thi-AF
Thi-A
EEV-Control box
䠢䠝䠪
EEV-Set
Strainer Strainer
To other I/U
h
㻾㻛㻯㻌
[Note]
Normal I/U can be
connected with EEV-KIT.
Capacity balance check
is required
01
O/U address
O/U address: 01
I/U address: 01
Signal line

-
4
-
'19 • KX-T-336
• All wiring for the 5 sensors, EEV-coil, operation command to indoor fan motor, remote
control and Superlink line must be connected to the EEV-Control box.
• Check both return/supply air temperature sensors. (Thi-A,AF) whether the temperature is
detected correctly.
• Confirm whether the heat exchanger temperature sensors(Thi-R1,R2,R3) detect the
correct temperature. Incorrect mounting of any sensor will cause problems with the
compressors.
• Check during commissioning
• The overcurrent relay and magnetic contactor for the fan motor should be provided
locally.
• Check whether the anomaly signal can be detected or not by inputting the overcurrent
anomaly signal from the fan motor to the EEV- Control box.
• Power source to the fan motor should be provided independently and not from the EEV-
Control box.
ＦＡＮ
EEV-Set
EEV-Control box
Thi-R1
Thi-R2
Thi-R3
Thi-AF
Thi-A
EEV-coil
Fan motor
EEV-Control box
Power source line
The indoor fan motor ON/OFF signal
Overcurrent anomaly signal
ＦＡＮ

-
5
-
'19 • KX-T-336
• The remote control for the KXE6 system (RC-E5) shall be provided separately if
required.
• Central control (SC-SL4) can be use for controlling together with other indoor units.
• The limitations of the address settings, capacity selection and cable length of the
Superlink line are the same as the KXE6 systems.
(See technical manual of KXE6 for details.)
1.2 System B
• System B is a system that has multiple EEV-KIT’s built into one indoor unit with
multiple heat exchangers on one refrigerant circuit.
• This system can be applied up to 48HP for KXE6 AHU capacity.
• This system can be applied up to 60HP for KXZE1 AHU capacity.
ＦＡＮ
R/C
SL4
Address setting
EEV-Control box Signal line
ＦＡＮ
EEV-Set ×2 sets
EEV-Control box ×2 sets

-
6
-
'19 • KX-T-336
• System B is a system that multiple EEV-KIT’s are built into one AHU and KXE6 or
KXZE1 outdoor units are used.
• However, multiple refrigeration systems used with one AHU can not be applied to system
B. In such cases, please use the master EEV-KIT for multiple refrigeration system
applications.
Thi-R1
Thi-R2
Thi-R3
Thi-AF
Thi-A ＦＡＮ
R
h
i
T
h
i
-
R
EEV-Set
01 02
EEV slave control box
O/U Address
O/U Address
I/U Address 04
01
03
01
02
01
01
01
R/C
Signal line
EEV-Control BOX
Sensors （5pcs）
Thi-A
Thi-R1
Thi-R2
Thi-R3
Thi-AF
EEV-KIT
EEV-Control box
EEV-Set
Strainer
EEV
Strainer
EEV-Control ASSY
In case of a multiple refrigeration system, use the EEV-KIT for multiple refrigeration systems.
ＦＡＮ
EEV-Set×2set
EEV-Control box ×2set
ＦＡＮ
EEV-Set×2set
EEV-Control box ×2set
This system can be applied. This system can NOT be applied.
A Master control
is necessary.
Multiple refrigeration systemSingle refrigeration system
One refrigerant circuit Two refrigerant circuit

-
7
-
'19 • KX-T-336
1. The wiring connection method for each EEV-KIT is basically the same as that for system A.
2. All of the return/supply air temperature sensors for all the EEV-KIT’s shall be placed and
connected individually.
3. The wiring for the fan motor command signal should be connected to one of the EEV-
Control boxes.
4. The remote control wiring shall be connected to all the EEV-Control boxes.
• The Superlink line must be connected to all EEV-Control boxes and the outdoor unit
according to the standard rules of the KXE6 system.
• Set an address for each EEV-Control box.
ＦＡＮ
Thi-R1
Thi-R2 Thi-R3
Thi-AF
×4
Thi-A
×4
ＦＡＮ
RC
Fan motor wiring is connected
to a slave control
All controls are connected to
same remote control
Same position
ＦＡＮ
Address setting

-
8
-
'19 • KX-T-336
2. Components of a single refrigeration system
Components of a single DX AHU refrigeration system
(1) Slave EEV Control ASSY (EEVKIT6-E-C/A, /B)
① Slave EEV-Control box
② 2 air sensor Assy. (Thi-A, Thi-AF)�
③ 3 heat exchanger sensor Assy. (Thi-R1, Thi-R2, Thi-R3)
(2) EEV-Set
(3) Outdoor unit for KXE6 or KXZE1 system
• Check the applicable models in the following tables.
• When controlling the AHU via a central control connected with normal indoor unit in
another refrigerant systems, it is recommend to connect the Superlink line to the central
control through Superlink adaptor (SC-ADNA-E) in order to control all EEV-KIT with
same settings and to prevent duplication of SL addresses.
SL4
ＦＡＮ
R/C SL adaptor SC-ADNA-E
Superlink line
Remote
control line
Superlink
line
Central
control
KXZE1 series
Model Compatibility
FDC-KXZEN1 ○
FDC-KXZES1 ○
FDC-KXZPE1 ○
FDC-KXZME1 ○
FDC(S)-KXZE1 ○
FDCL-KXZE1 ○
FDC-KXZXE1 ○
FDC-KXZE1M ○
FDCB-KXZE1 ‑
FDC-KXZRE1 ‑
FDC-KXZRXE1 ‑
FDC-KXZWE1 ‑
KXE6 series
Model Compatibility
FDC(S)-KXEN6 ○
FDC(S)-KXES6 ○
FDC(S)-KXE6 ○
FDC(S)-KXE6M ○
FDC-KXRE6 ○ *
FDCB-KXE6 ‑
FDCR-KXE6 ‑
FDCH-CKXE6G ‑
FDCH-KXE6 ‑
*:Not possible to change the evaporating/condensing temperature