CLASSIFIED

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Date C08024154496D
A DESCRIPTION: HXET CONTROL PANEL WIRING DIAGRAM REVISION 4 A
25/9/2020
SHEETS:7 PAGE:1
PAG. INDEX.
2 LCD & UC POWER SUPPLY
3 PCO5+ CONTROL UNIT
4 PCO5+ CONTROL UNIT, EKE CONTROLLER, SWITCH
B 5 OPTIONAL ITEM WIRING CONNECTION B
6 LOAD BALANCE VALVE OPTIONAL ITEM
7 LEGEND

HXET CONTROL SCHEMATIC

C C

WIRES CONNECTING UNIT AND CABINET

D D
USER SUPPLY OPTIONAL EQUIPMENT

E E

HXET CONTROL PANEL

F F
C08 02 4154496D
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 CLASSIFIED
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Date C08024154496D
A DESCRIPTION： LCD & UC POWER SUPPLY REVISION 4 A
25/9/2020
SHEETS:7 PAGE:2

220VAC
STARTER 2 LCD TOUCH SCREEN
30 29 PROFINET
90 91 X3
B TOUCH SCREEN LCD B

101
102

COM

734

735
35 36
+ - 10/100M
DC 9-36V Ethernet
980
982

GND
IP Display MODBUS RTU
L N Option
RS232 RS485
C VC1 533 C
DC POWER PROFINET RS485 PORT B A
AC85~264V/DC24V PE
- + PE
L+ M X3 X2 GND

715+
715-
24VDC POWER PE

GND (GREEN)
1A+ (BLACK)
1B- (RED)
660

659

CABLE - + GND
J25 BMS2
734
D 90 UC-J25 D
91 735
R3V
2 1
PE - + GND CB4 6A
903 163 70 3.1F
J25 BMS2
24VAC
UC-J25 BLUE YELLOW 164 71 3.1F
C
E T3 S E
BLACK WHITE PE 164
31 32

901

902
External PE
871
872

Communication Serial Card

Option - + GND 37 36

103

101
BMS Card
F UC-BMS Card 31 29 F
STARTER 2
220VAC

1 2 3 4 5 6 7 8 9 10
 F
E
C
B
A

D
1

1
2.10E
2.10E
QF
90 538 550
G
91 1 2 551

J1
J10

UC
539 G0
3 4

COND LIQUID LEVEL SENSOR (SQ) 700

67 B- (BLACK)
+Vterm TX/RX
BROWN SQ-BR pLAN

c
WHITE 41 701 A+(WHITE) ISOLATION
TX/RX

a b
SQ
GND

J24
2

2
J11 pLAN
40 702

BLUE
+5Vref GND
SQ-BN

SQ-W
COND EWT SENSOR (US01) 42 POWER SUPPLY
US01-R US01-B 552
U1 CB 24~220VAC
RED BLACK
612 600 85 W111 W112 86
S

43 559 C1
WHITE US09-W U2
BLACK US09-B EVAP WATER PUMP #1 601 73 W113 W114 86
0-5VDC 68 711 NO1 EP1
RED US09-R

J2
U3
EVAP WATER PUMP #2 602 74 W115 W116

PE
86
3

3
69 712 NO2 EP2

J12

DRN
GND
ECONOMIZER PRESSURE (US09) COND WATER PUMP #1 603 75 W117 W118 86
NO3 CP1

FieldBus Card
+VDC
C1
COND LWT SENSOR (US04)
613

US04-B BLACK 44 703

θ
U4
US04-R RED 45 704 C4
GND
COND WATER PUMP #2 604 76 W119 W120 86

J3
46 705 NO4 CP2
US05-B BLACK
θ
U5
4

4
COOLING TOWER STAGE #1 605 77 W121 W122 86
NO5 C1
US05-R RED 47 706
GND
J13
COOLING TOWER STAGE #2 606 78 W123 W124 86
ECONOMIZER TEMP SENSOR (US05) NO6 C2

C4
70 554
VG
555 SPORLAN IB-G (EXV BD)
C101 VG0 -
UC-J4-Y3 EXV BD
614

71
COOLING TOWER BYPASS VALVE 52
C102 556 3.5D 750
0-10VDC Y1 + S+
92 EXV-B
751 B
J4
COOLING TOWER VFD PE 71 S-
53
J25 BMS2

71 557 GND
5

5
C103 0-10VDC C104 Y2 93 EXV-W
752 W
EXV BD CLS
751 750 EXV
PE

0-10VDC Y3
BLACK - RED 753 94
+ C7 REF G
669 CB6 EXV-G
35 C 906
EKE-1A(1)-22 Y4 911
50 548
904 95
NO7 WHITE YELLOW 1 2
24V+
GND R
J14

EXV-R
905 912 913 549
+ BLACK S BLUE 3 4
24V-
C7
DESCRIPTION： UC (PCO5+ CONTROL UNIT)

36 T5 51
UNIT START STOP SWITCH -
565 2 1 SW1 566 ID1 30 220VAC
70 1 SW3 54
2 558 ID2 29 STARTER 2
6

6
569
REMOTE START STOP ID3 ALARM (NO) 607 82 W124 W125
NO8 A
588 2 1 COMP1 SWITCH 589
BMS Card

SW6 ID4 ALARM (POWER) 608 84 W128 W126

S

C8
J15

590 2 1 COMP2 SWITCH 591

J5

SW7 ID5 POWER SUPPLY 24~220VAC 81

ALARM (NC) 609 83 W127
740 2 1 COMP3 SWITCH 741 NC8 A
SW8 ID6

COMP OFF SWITCH ID7

592 SW5 2 1 593 ID8
71
560
7

7
IDC1 C9
COOLING TOWER STAGE #3 610 79 W129 W130 86
NO9 C3
GAS FEED #1 PRESSURE SENSOR (US06)
RED US06-R 40 COOLING TOWER STAGE #4 611 80 W131 W132 86
NO10 C4
J16

BLUE US06-B 41
0-5VDC WHITE US06-W
58 NO11
561 U6
40 59 C9
RED US07-R 562
GAS FEED #2 BLUE US07-B 41 U7
0-5VDC WHITE US07-W
PRESSURE
J6

PE

SENSOR (US07)
-
8

8
DRN

57 563
U8 - 6.1C
RED US08-R 40
+

BLUE US08-B 41
0-5VDC WHITE US08-W GND + 6.1C
G

GND 6.1C
J26 FBus 2

GAS FEED #3 PRESSURE SENSOR (US08)

564
NO12
70 574 38 576
Date

ID9
C12
J17

*NOTE 1 70 575 39 577 ID10

25/9/2020
9

NC12
70 579 56 580 ID11
J7

ID12 616 64
NO13
BOX.

71 578 IDC9 615

NOTE 1:

C13 70
J18
REVISION

615
CLASSIFIED

NC13
PCO5+
10

10
4.1E
C08024154496D

4.1 B

DEVICE, REMOVE WIRE 574

SHEETS:7 PAGE:3

1 . IF STARTER HAS THE GFP

& 575 & 579 IN UNIT CONTROL

F
E
C
B

D
4 A
 F
E
C
B
A

D
3.10C

3.10F
1

1
THERMAL FLOW SW. (OPT.)
ID13H

615
ID13 617 65
COND. FLOW SW

UC
NO14

J8
CF1 IDC13
CF-B 4 1 CF-BR 733 615
ID14 C14
BLACK BROWN 90
3 ID14H
CF-BN BLUE 732 NC14

J21
EVAP. FLOW SW 91
NO15
EF1
EF-B 4 1 EF-BR 618 66
C15
BLACK BROWN
ID15H
3
2

2
NC15 615
EF-BN BLUE ID15

IDC15
OPTION 1

J19
*REFER PAGE5, NOTE 2 ID16

ID16H

C16 585 -
584
J2 MOD1
NO16 +
EKE-1A(2)-22
670
Y5 586
NO17 +
EKE-1A(3)-22 671 J2 MOD2
3

3
Y6

J22
EVAP EWT SENSOR (US02) 587 -
C16
US02-B BLACK 60 707
θ
U9
597 +
RED
NO18
US02-R 61 708
GND J2 MOD3
598 -
US10-B BLACK 62 709 C16
θ
U10

J20
US10-R RED 63 710
GND
EF EVAP LWT SENSOR (US10)
594
ID17
Tx/Rx-
CF 595
ID18

71
Tx/Rx+
4

4
596 IDC17
J23

GND
PCO5+

161
COM +/~
162
5V+ -/~
5

5
D12 GND
672
D11 BAT+
COM WHITE AI1-W
672 A1
71
669 BLACK AI1-B
A14
162

161

A2
A13 RED AI1-R
UC

B1
AI1

J4:Y4
2
4

A12 GREEN AI1-G

B2
D13
CB5

NO1
EKE-1A(1)
1
3

COM C1
NC1
6

6
CAN RJ
909
910

BLUE
YELLOW
S

COMPRESSOR #1 GAS FEED EXPANSION VALVE

PE
WHITE

BLACK

161
T4

COM +/~
162
5V+ -/~
907
908

565
D12 GND
566 673
SW1
UNIT
7

7
D11 BAT+
35
36

WHITE AI2-W
588 673 COM A1
71

670 BLACK AI2-B

DESCRIPTION： UC, EKE GAS FEED EXV CONTROLLER, SWITCH PANEL

589 A14 A2
SW6

RED AI3-R
UC

A13 B1
AI2

J20:Y5

590 GREEN AI4-G

A12 B2
102
101

591
SW7

D13 NO1
EKE-1A(2)

740 COM C1
741 CAN RJ NC1
SW8
COMP 1 COMP 2 COMP 3
8

8
SWITCH BRACKET WIRING
30
29

COMPRESSOR #2 GAS FEED EXPANSION VALVE

OFF - RELEASED
ON - PRESSED

600
NOTE: REFER PAGE 3 FOR MORE DETAIL

161
+/~
CB

612
COM
162
5V+ -/~
OPTION 1
220VAC

*REFER PAGE 5, NOTE 3

CIRCUIT BREAKER
Date

D12 GND
674
STARTER 2

D11 BAT+
WHITE AI3-W
25/9/2020

COM A1
9

674
9
71

671 BLACK AI3-B

A14 A2
RED AI3-R
UC

A13 B1
AI3

J20:Y6

GREEN AI3-G
A12 B2
D13 NO1
EKE-1A(3)

COM
REVISION

C1
CLASSIFIED

CAN RJ NC1
10

10
COMPRESSOR #3 GAS FEED EXPANSION VALVE
C08024154496D

SHEETS:7 PAGE:4
4

F
E
C
B

D
A
 CLASSIFIED
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Date C08024154496D
A DESCRIPTION： OPTIONAL ITEM WIRING CONNECTION REVISION 4 A
25/9/2020
SHEETS:7 PAGE:5

DIFF. PRESSURE FLOW SW. (OPT.)

750 CN2
UC J4-:Y3 AIO:2 BROWN 92
71 751 GND:1 CN4 FA-:1 EXV-BR
C7 EVAP. DP FLOW SW.
752 -DIO:2 BLUE 1 2 BROWN
J14 NO7 WHITE 93 EXV-WH
1
70 EF
B B
CN3 FA+:2 EF-BN EF1 NO EF-BR
C7 +DIO:1 2

STARTER 2
30 35 165
L 24 +
913 50 548
+Vp BLUE 94 EXV-BN 3
EXV
29 36 FB+:3 BLUE 1 2 BROWN
220VAC 166 N VDC - 914 51 549 CN1
EXV-BLK 4 70 CF
GND CF-BN CF1 NO CF-BR
VC2 BLACK 95
FB-:4 COND. DP FLOW SW.
PE

534
EXV (LAM DS3044) OPTION 2
PE
**FOR 400TON AND ABOVE *REFER NOTE 2

C 162
C
4.6B
161
4.6B
COMPRESSOR #2 GAS FEED EXPANSION VALVE COMPRESSOR #3 GAS FEED EXPANSION VALVE
COMPRESSOR #1 GAS FEED EXPANSION VALVE

AI1 AI2 AI3

D D
WHITE AI2-W

GREEN AI2-G
GREEN AI1-G

GREEN AI3-G
WHITE AI1-W

WHITE AI3-W
BLACK AI2-B

BLACK AI3-B
BLACK AI1-B

RED AI2-R

RED AI3-R
RED AI1-R

161
162

161
162

162
161

VBAT
G0

NO1
1

COM1
2
4
3
G
VBAT
G0

VBAT
NO1
1

COM1

G0
2

NO1
1
4

COM1
3

2
4
3
G

G
EVD1 EVD2 EVD3
NETWORK NETWORK NETWORK NOTE 2:
E 1. CHOOSE ONLY ONE OPTION FOR WIRING
E
VREF
VREF

VREF
GND
GND

GND
D12
D11
D12

D12
D11

D11
GND

CONNECTION
GND

GND
S2
S3
S1

S4
S2

S2
S3
S1

S4

S3
S1

S4
+
_
+
_

_
+
2. REFER TO OPTION 1 FOR THERMAL FLOW
SWITCH
3. REFER TO OPTION 2 FOR DIFFERENTIAL
PRESSURE FLOW SWITCH
673

670
672

670

674

670
71 71 71
NOTE 3:
1. CHOOSE ONLY ONE OPTION FOR WIRING

OPTION 2
CONNECTION
2. REFER TO OPTION 1 FOR DANFOSS EKD
F F
UC UC
UC TYPE CONTROLLER
J4:Y4 J20:Y5
*REFER NOTE 3 J20:Y6 3. REFER TO OPTION 2 FOR CAREL EVD TYPE
CONTROLLER

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 CLASSIFIED
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Date C08024154496D
A DESCRIPTION： LOAD BALANCE VALVE OPTIONAL ITEM REVISION 4 A
25/9/2020
SHEETS:7 PAGE:6

-
MOD1 I/O MODULE
NOTE 4:
3N1
J1 COM 1. CHOOSE ONLY ONE OPTION FOR WIRING

G
ENTRY
J1 NETB CONNECTION

-
LEAVING

J1 NETA JP2 2. REFER TO OPTION 1 FOR EXV-TYPE'S LOAD

+
JP7
BALANCE VALVE
B B
584
J2 +
NO16 JUMPER
3. REFER TO OPTION 2 FOR SOLENOID VALVE
J2 - I/LOCK
585
C16 TYPE'S LOAD BALANCE VALVE
J22
EXV2
1A 1B 2A 2B
OPTION
*REFER NOTE 4
1 OPTION
*REFER NOTE 4
2
COMP 1

LOAD BALANCE
MOD1-R
MOD1-G LOAD BALANCE

VALVE 1
MOD1-W
MOD1-B
VALVE 1

C MOD2 I/O MODULE

64 YM1-B YM1-B
BLUE
C
BLUE 71
G
3N1
J1 COM
G

3.8C ENTRY YM1-Y

3.8C - J1 NETB YELLOW PE
-

LEAVING
+ J1 NETA JP2
3.8C
+

JP7
586 LOAD BALANCE
J2 +
NO17 JUMPER
VALVE 2
J2 I/LOCK
587
C16
65 YM2-B YM2-B
J22 BLUE BLUE 71
EXV2
1A 1B 2A 2B YM2-Y

D YELLOW PE
D
COMP 2
LOAD BALANCE
LOAD BALANCE

MOD2-R VALVE 3
MOD2-G
VALVE 2

MOD2-W 66 YM3-B YM3-B

MOD2-B BLUE BLUE 71
YM3-Y
YELLOW PE
MOD3 I/O MODULE
3N1
J1 COM
G

ENTRY

E J1 NETB
E
- +

LEAVING

J1 NETA JP2
JP7
597
J2 +
NO18 JUMPER

J2 - I/LOCK
598
C16

J22
EXV2
1A 1B 2A 2B

COMP 3
LOAD BALANCE

F MOD3-R
F
VALVE 3

MOD3-G
MOD3-W
MOD3-B

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 CLASSIFIED
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Date C08024154496D
A DESCRIPTION： LEGEND REVISION 4 A
25/9/2020
SHEETS:7 PAGE:7
NO. SYMBOL NAME LOCATION NO. SYMBOL NAME LOCATION
1 A ALARM RELAY 3.6B
2 AI1 COMPRESSOR #1 GAS FEED EXPANSION VALVE 4.5C; 5.3D
3 AI2 COMPRESSOR #2 GAS FEED EXPANSION VALVE 4.7C; 5.5D
4 AI3 COMPRESSOR #3 GAS FEED EXPANSION VALVE 4.9C; 5.7D
5 C1-C4 COOLING TOWER 3.4B; 3.7B
B 6
7
CB, CB4-CB6
CF
MINIATURE CIRCUIT BREAKER
CONDENSER FLOW SWITCH
2.8D; 3.5C; 4.6B; 4.9E
4.4E
B
8 COMP1-COMP3 COMPRESSOR #1 - COMPRESSOR #3 3.9C; 3.9B; 3.10B
9 CP1, CP2 CONDENSER WATER PUMP 3.3B; 3.4B
10 DP FLOW SWITCH DIFFERENTIAL PRESSURE FLOW SWITCH 5.8B
11 EF EVAPORATOR FLOW SWITCH 4.4E
12 EKE-1A(1) DANFOSS EKE-1A CONTROLLER 1 4.5D
13 EKE-1A(2) DANFOSS EKE-1A CONTROLLER 2 4.7D
14 EKE-1A(3) DANFOSS EKE-1A CONTROLLER 3 4.9D
15 EVD1 CAREL EVD CONTROLLER 1 5.4E
EVD2 CAREL EVD CONTROLLER 2 5.6E
C 16
17 EVD3 CAREL EVD CONTROLLER 3 5.8E C
18 EP1-EP2 EVAPORATOR WATER PUMP 3.3B
19 EXV EXV VALVE 3.5B
20 EXV BD IBG EXV CONTROLLER BOARD 3.5B
21 LCD LCD DISPLAY 2.5D
22 MOD1-MOD3 COMPRESSOR SIGNAL I/O MODULE 6.8B; 6.8D; 6.9E
23 QF MINIATURE CIRCUIT BREAKER 3.2E
24 R3V VARISTOR 2.9D
25 S EXTERNAL POWER SOURCE 3.3B; 3.6B
26 SQ LIQUID LEVEL CONTROL 3.2E
D 27
28
SW1, SW6-8
SW5
SWITCH
COMPRESSOR OFF SWITCH
3.6E; 4.7E
3.6E
D
29 T3-T5 TRANSFORMER 2.7E; 3.6C; 4.7B
30 UC PCO5+ CONTROLLER 3.10D
31 US01 CONDENSER EWT SENSOR 3.3E
32 US02 EVAPORATOR EWT SENSOR 4.3D
33 US04 CONDENSER LWT SENSOR 3.4E
34 US05 ECONOMIZER TEMP SENSOR 3.4E
35 US06 COMPRESSOR GAS FEED #1 SENSOR 3.7E
36 US07 COMPRESSOR GAS FEED #2 SENSOR 3.8F
37 US08 COMPRESSOR GAS FEED #3 SENSOR 3.9F
E 38 US09 ECONOMIZER PRESSURE SENSOR 3.3E E
39 US10 EVAPORATOR LWT SENSOR 4.4D
40 VC1 DC POWER SUPPLY 2.2C
41 YM1 LOAD BALANCE VALVE 1 6.6C
42 YM2 LOAD BALANCE VALVE 2 6.6D
43 YM3 LOAD BALANCE VALVE 3 6.6D

F F

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