Mitsubishi Heavy Industries SRK-ZSP-S User manual

SERVICE
SUPPORT
HANDBOOK
www.dwgeire.ie

MHI e-service
DCSL Software Ltd
Free
Compatibility
Iphone or Ipad on IOS9.3 or later
Android devices on 4.3 or later.
Screenshots
Description
MHI e-service is an application that enables users to make a quick search of the meaning
of error codes that may appear when there is a malfunction in "Mitsubishi Heavy Industries
Thermal Systems, Ltd" Air conditioning system, and the probable cause of the
malfunction.
In addition this application enables you to scan unit's QR code and search the meaning
of error codes depending on the model type.
The application covers "Mitsubishi Heavy Industries Thermal Systems, Ltd" Air conditioning
systems: Split (RAC & PAC), VRF, Q-ton & A2W.
The MHI e-service app is a free download available from Google Play for Android devices
(4.03 or later), or the Apple App Store for IOS devices (IOS9.3 or later).
MHI e-service app

WARNING
The information contained in this ‘Service Support Handbook’ is intended for use by
qualified service technicians familiar with safety procedures and equipped with the
proper tools and test instruments. Additionally, the information presented here is not a
replacement for, nor a substitute to the Manufacturers Technical Manuals.
MHI Air Conditioners contain pressurized refrigerants that are harmful to the atmosphere
so all refrigeration works must be performed by a qualified "F-Gas" registered person.
Please do not remove any covers, or attempt any repair or measurement on any MHI
LTD. product, unless you are suitably qualified and licensed to do so.
Repairs made by unqualified persons can result in hazards to you and others.
Technical Assistance is available Monday to Friday
between the hours of 08:00 and 17:00
on 03301 235 598

Hi-Wall Mounted Split Systems - Remote Controls of SRK
Before Proceeding to RAC Self Diagnosis Information,
ensure the correct Remote Control is being used.
Indoor Model
Remote Control
SRK--HC-S, HC-S1, HD-S, ZD-S, SKM--ZD-S
RMA502A001
SRK--HG-S
RKX502A007B
SRK--ZE-S, SRK--ZE-S1, SRK--ZR-S
RKW502A200D
SRK--ZFX-S, SRK--ZGX-S
RKW502A200B
SRK--ZG-S, ZHX-S, ZIX-S
RKX502A001C
SRK--ZJ-S, ZJ-S1, ZJX-S, ZJX-S1
SRK--ZM-S, SRK--ZMX-S, SRK--ZR-S
RLA502A701R
SRK--ZS-S
RLA502A701L
SRK--ZSX-S
RLA502A700K
SRF--ZMX-S
RLA502A700C
SRK--ZMP-S
RKX502A001P
SRK--ZSP-S
RKX502A007P
RKX502A001C

RKW502A200
RLA502A701R

RC-E5 Layout

To access the RC-E5 Remote Controls Operation Data function, press the "CHECK" button on the MASTER remote control.
On 'Operation data' press the "SET" button.
If 'I/U No' is displayed select the unit number required, using the "/\" and "\/" buttons above the "CHECK" button, then
press the "SET" button
All navigation is carried out using the "/\" and "\/" buttons above the "CHECK" button.
RAC Unit
Compatibility
01
MODE
Current operation mode
ok
02
SET TEMP
°C
Set temperature
ok
03
RETURN AIR
°C
Return air sensor temperature
ok
04
SENSOR
°C
Remote control sensor temperature
ok
05
THI-R1
°C
Indoor heat exchanger sensor (on U bend)
ok
06
THI-R2
°C
Indoor heat exchanger sensor (on Capillary)
ok
07
THI-R3
°C
Indoor heat exchanger sensor (on suction header)
-
08
I/U FANSPEED
Indoor unit fan speed
-
09
DEMAND
Hz
Required frequency
-
10
ANSWER
Hz
Response frequency
-
11
I/U EEV
PULSE
Pulse rate of KX indoor unit expansion valve
-
12
TOTAL I/U RUN
Hr
Total running hours of the indoor unit
-
21
OUTDOOR
°C
Outdoor air temperature
ok
22
THO-R1
°C
Outdoor unit heat exchanger sensor
ok
23
THO-R2
°C
Outdoor unit heat exchanger sensor
-
24
COMP
Hz
Compressor frequency
ok
25
HP
MPa
High pressure (x10=Bar)
-
26
LP
Mpa
Low pressure (x10=Bar)
-
27
Td
°C
Discharge Pipe Temperature
ok
28
COMP BOTTOM
°C
Compressor base temperature
-
29
CT
Amp
Current
ok
30
TARGET SH
°C
Target Super Heat
-
31
SH
°C
Super Heat temperature
-
32
TDSH
°C
Compressor discharge pipe super heat
ok
33
PROTECTION No
Protection state number of the compressor
-
34
O/U FANSPEED
Outdoor unit fan speed
ok
35
63H1
63H1 High pressure switch on/off
-
36
DEFROST
Defrost control on/off
ok
37
TOTAL COMP RUN
Hr
Total running hours of compressor
-
38
O/U EEV1
PULSE
Pulse rate of the outdoor unit expansion valve EEVC
ok
39
O/U EEV2
PULSE
Pulse rate of the outdoor unit expansion valve EEVH
-
No. Contents of display
0 Normal
1 Discharge pipe temperature protection control
2 Discharge pipe temperature anomaly
3 Current safe control of inverter primary current
4 High pressure protection control
5 High pressure anomaly
6 Low pressure protection control
7 Low pressure anomaly
8 Anti-frost prevention control
9 Current cut
10 Power transistor protection control
11 Power transistor anomaly (Overheat)
12 Compression ratio control
13 -
14 Condensation prevention control
15 Current safe control of inverter secondary current
16 Stop by compressor rotor lock
17 Stop by compressor startup failure
Details of 33 Compressor Protection Status
RC-E5 OPERATION DATA

Touch panel control, which is operated by tapping the LCD screen with a finger, is employed for all functions except
1 On/Off switch, 2 Hi Power switch and 3 ECO switch.
RC-EX1 & EX1A Layout

Touch panel control, which is operated by tapping the LCD screen with a finger, is employed for all functions except
1 On/Off switch, 2 Hi Power switch and 3 ECO switch.
RC-EX3 Layout

To access the RC-EX Remote Controls Operation Data function, press MENU on the MASTER remote control Front Screen.
Then press NEXT followed by SERVICE (RC-EX3 only) and SERVICE & MAINTENANCE. Enter the service pass code, press SET
then press OPERATION DATA. You can then select the indoor unit you want to view.
RAC Unit
Compatibility
01
MODE
Current operation mode
ok
02
SET TEMP
°C
Set temperature
ok
03
RETURN AIR
°C
Return air sensor temperature
ok
04
SENSOR
°C
Remote control sensor temperature
ok
05
THI-R1
°C
Indoor heat exchanger sensor (on U bend)
ok
06
THI-R2
°C
Indoor heat exchanger sensor (on Capillary)
ok
07
THI-R3
°C
Indoor heat exchanger sensor (on suction header)
-
08
I/U FANSPEED
Indoor unit fan speed
-
09
DEMAND
Hz
Required frequency
-
10
ANSWER
Hz
Response frequency
-
11
I/U EEV
PULSE
Pulse rate of KX indoor unit expansion valve
-
12
TOTAL I/U RUN
Hr
Total running hours of the indoor unit
-
21
OUTDOOR
°C
Outdoor air temperature
ok
22
THO-R1
°C
Outdoor unit heat exchanger sensor
ok
23
THO-R2
°C
Outdoor unit heat exchanger sensor
-
24
COMP
Hz
Compressor frequency
ok
25
HP
MPa
High pressure (x10=Bar)
-
26
LP
Mpa
Low pressure (x10=Bar)
-
27
Td
°C
Discharge Pipe Temperature
ok
28
COMP BOTTOM
°C
Compressor base temperature
-
29
CT
Amp
Current
ok
30
TARGET SH
°C
Target Super Heat
-
31
SH
°C
Super Heat temperature
-
32
TDSH
°C
Compressor discharge pipe super heat
ok
33
PROTECTION No
Protection state number of the compressor
-
34
O/U FANSPEED
Outdoor unit fan speed
ok
35
63H1
63H1 High pressure switch on/off
-
36
DEFROST
Defrost control on/off
ok
37
TOTAL COMP RUN
Hr
Total running hours of compressor
-
38
O/U EEV1
PULSE
Pulse rate of the outdoor unit expansion valve EEVC
ok
39
O/U EEV2
PULSE
Pulse rate of the outdoor unit expansion valve EEVH
-
No. Contents of display
0 Normal
1 Discharge pipe temperature protection control
2 Discharge pipe temperature anomaly
3 Current safe control of inverter primary current
4 High pressure protection control
5 High pressure anomaly
6 Low pressure protection control
7 Low pressure anomaly
8 Anti-frost prevention control
9 Current cut
10 Power transistor protection control
11 Power transistor anomaly (Overheat)
12 Compression ratio control
13 -
14 Condensation prevention control
15 Current safe control of inverter secondary current
16 Stop by compressor rotor lock
17 Stop by compressor startup failure
Details of 33 Compressor Protection Status
RC-EX OPERATION DATA