ESIE11-02
Checking the Inputs and Outputs
3–21
3
3
4
5
1
Phenomena
The table below contains error phenomena
hp1
ON
OFF
■
High pressure switch
circuit 1
■
High pressure switch
circuit 2
■
If only 1 circuit:
shortcut
S1HP
S2HP
X6A
X7A
X7A
Check S1HP.
Check S2HP.
Check shortcut.
■
Overcurrent
protection compr. 1
■
Overcurrent
protection compr. 2
■
If only 1 circuit:
shortcut
K4S
K5S
X10A
X11A
X11A
Check K4S.
Check K5S.
Check shortcut.
■
Discharge thermal
protection 1
■
Discharge thermal
protection 2
■
If only 1 circuit:
shortcut
Q1D
Q2D
X8A
X9A
X9A
Check Q1D.
Check Q2D.
Check shortcut.
hp1
OFF
OFF
Wireharness between I/O
PCB and microchiller
compact
X71A
X1
■
Check connections on
X71A (I/O PCB).
■
Check connections on
X1 (microchiller
compact).
hp1
ON
ON
Sensor
broken
■
Ambient
■
If heat pump unit: coil
sensor 1
■
If hatpins unit: coil
sensor 2
R6T
R7T
R8T
X40A
X41A
X42A
Check sensor.
Check sensor.
Check sensor.
lp1
OFF
OFF
Low
pressure
■
Low pressure switch 1
■
Low pressure switch 2
S4LP
S5LP
X63A
X64A
Check S4LP.
Check S5LP.
Phenomena
Possible cause
Part
Con-
nector
Action
Fans of circuit 1 do not run
Fan fuse of circuit 1 blown
F7
Check fuse.
Thermal protector fan circuit 1
Q11F
Q12F
X12A
X13A
Check Q11F.
Check Q12F.
Wiring connector
X21A
X22A
Check wiring connector
X21A.
Check wiring connector
X22A.
Summary of Contents for EUWAB10KBZW1
Page 2: ......
Page 8: ...ESIE11 02 vi Table of Contents 3 1 4 5...
Page 10: ...Introduction ESIE11 02 viii 3 1 4 5...
Page 12: ...ESIE11 02 1 2 Part 1 System Outline 3 1 1 5...
Page 86: ...Wiring Layout ESIE11 02 1 76 Part 1 System Outline...
Page 88: ...ESIE11 02 2 2 Part 2 Functional Description 3 1 2 5...
Page 128: ...The Digital Controller ESIE11 02 2 42 Part 2 Functional Description 3 1 2 4 5...
Page 130: ...ESIE11 02 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 168: ...ESIE11 02 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 198: ...Test Run and Operation Data ESIE11 02 4 32 Part 4 Commissioning and Test Run 3 1 4 5...
Page 200: ...ESIE11 02 5 2 Part 5 Maintenance 3 1 5...
Page 210: ...ESIE11 02 4 Index 3 1 4 5...