manualshive.com logo in svg

Mitsubishi Heavy Industries EEVKIT6-E-C/A, Technical Manual

Share
Download
Mitsubishi Heavy Industries EEVKIT6-E-C/A Technical Manual Download Page 21

-

 19 

-

 '19 • KX-T-336

3.4  Switching return/supply air temperature control

Normal KX indoor unit’s are control by 
their EEV’s to keep system reliability.

[ Cooling ] Superheat (SH)

[ Heating ] Subcool (SC)

Return

/

supply air temperature control

Cooling mode and heating mode must use same pressure control mode.
(STANDARD mode or TYPE1 mode)

SC

= CT – liquid temp

erature

 at EEV

SC

Thi-R1

Thi-R2

Thi-R3

Gas

Liquid

Heating

Flow

Flow

Thi-R1

Thi-R3

Thi-R2

SC

Thi-R1

Thi-R2

Thi-R3

Gas

Liquid

SH

Mixed

Cooling

Flow

Flow

Te

m

perature

Te

m

perature

Thi-R1

Thi-R3

Thi-R2

SH

Enthalpy

P

re

ss

ur

e

Evaporator

Condenser

Condensed 

temperature (CT)

Evaporated 

temperature (ET)

Compressor

EEV

SH

SC

SH

=Compressor suction temperature – ET 

Control

Pressure control

mode

Target pressure / supply

air temperature setting guideline

Return air temperature 
control

STANDARD

Evaporating temperature: 5-12

℃

Condensing temperature: 42-47

℃

TYPE1

Evaporating temperature: 5-12

℃

Condensing temperature: 32-37

℃

Supply air temperature 
control

STANDARD

Cooling supply air temperature: 

12-18

℃

Heating supply air temperature: 

32-40

℃

STANDARD
(SW7-2 ON)

Cooling supply air temperature: 

12-18

℃

Heating supply air temperature: 

20-28

℃

TYPE1

Cooling supply air temperature: 

22-28

℃

Heating supply air temperature: 

20-28

℃

Summary of Contents for EEVKIT6-E-C/A

Page 1: ...tion 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 ...

Page 2: ......

Page 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 ...

Page 4: ... 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 refrigeration system ＦＡＮ EEV ...

Page 5: ...h 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Supplyair 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 ad...

Page 6: ...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 Co...

Page 7: ... 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 Cont...

Page 8: ...rol 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 ...

Page 9: ...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 con...

Page 10: ...ystems 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 K...

Page 11: ...l box to fix the wiring Confirm that there is no tension on the wiring to the terminal blocks and that the wiring connections are fixed tight in the terminal blocks The label for the model name is located on the left side of the control box Take note that the wiring diagram is located on the back of the lid If you do not use the lid of the control box then use the wiring diagram that comes with th...

Page 12: ...his view is shown by removing the lid The wiring diagram has been pasted to the back of the lid If you do not want to use the lid then use the wiring diagram supplied as an accessory 1 are the holes for accessory cable tie bands for fixing the site wiring 2 is a connector to be connected to thermistor Thi A 3 is a connector to be connected to thermistor Thi AF 4 is a connector to be connected to t...

Page 13: ...here is no direct tension of the local wiring onto the terminal blocks or the connectors of printed circuit board PCB If you are using the control box as shown in the figure take note the following points Ensure that the exposed high temperature and the high voltage parts do not come into contact with any wiring Ensure that there is an air gap of more than 90mm above the high temperature and the h...

Page 14: ...C220V 60Hz Single phase Power source line Power source line between indoor units Connector for branching control of heat recovery 3 pipe system RD WH RD WH RD WH BK BK BK BK GY GY BK BK BK BK BK YE BK BK RD BR RD BR BK WH BL RD BL BK WH RD BL OR WH RD RD RD BR WH WH BR WH BK BL RD BR WH 1 2 52X1 3 5 Hi operation YE YE Heat exch air 1 2 3 4 5 6 CND 2 1 BL CND1 YE YE Fan motor error signal Y X t Thc...

Page 15: ...es place Outdoor unit address ones place SW5 1 Switching PCB setting for single multiple refrigeration system OFF single ON multiple Switching PCB setting for single multiple refrigeration system OFF single ON multiple SW5 2 Indoor unit address hundreds place OFF Reserved keep off SW6 1 4 Model capacity setting ON Model capacity setting ON SW7 1 Test run drain pump motor test OFF Reserved keep off...

Page 16: ...ror Open Close Drain pan Float switch E9 51X1 52X1 52X2 Damper for free cooling AHU Power source EEV KIT Power source UHi Hi Me Lo TB1 TB2 TB3 Thi R1 Thi R2 Thi R3 Thi A Thi AF Single phase Fan step control The slave control has two relays for the fan motor control 52X1 UHi Hi 52X2 Me Lo Even if only one step is necessary the wiring connection for the other step is also required Fan speed is chang...

Page 17: ...n 3 Float switch error signal Please connect as follows if you attach the float switch to slave control CNI on PCB When the error signal is sent E16 is shown Normal Error Close Open Prepare on site Prepare on site Prepare on site Prepare on site 5 6 51X1 TB2 7 8 RD WH RD WH WH 5 6 Fan motor error signal 5 6 51X1 TB2 7 8 RD WH RD WH WH 5 6 Fan motor error signal CNI BL 51X1 1 5 CNI2 WH RD RD 1 2 1 ...

Page 18: ...t is not set properly E12 1 time flash Keeps flashing Superlink Indoor unit address switch Indoor No Outdoor No New specification 001 127 49 Old specification 0 47 48 49 48 49 0 47 E15 1 time flash Keeps flashing Indoor supply air temperature sensor interrupted or short circuit E18 1 time flash Keeps flashing The address configuration fault for master slave indoor units E19 1 time flash Keeps flas...

Page 19: ... See item 3 1 3 1 SW1 SW5 Address setting Set address in the same manner as KXE6 orKXZE1 system OFF 100 s 0 ON 100 s 1 SW5 1 should be kept OFF Automatic address setting can be used but we recommend to use the manual address setting method Switch Contents SW1 Rotary switch Blue Indoor address 10 s SW2 Rotary switch Blue Indoor address 1 s SW3 Rotary switch Green Outdoor address 10 s SW4 Rotary swi...

Page 20: ...F OFF ON OFF ON OFF ON SW6 2 OFF OFF ON OFF ON OFF ON ON OFF OFF ON ON SW6 3 OFF OFF OFF ON ON OFF OFF OFF ON ON ON ON SW6 4 OFF OFF OFF OFF OFF ON ON ON ON ON ON ON Switch Function On Off Setting SW7 1 Test run drain pump motor test Off Normal On Test run SW7 2 Target supply air temperature adjustment Heating mode Off Normal On Target supply air temperature reduces 12 deg C SW7 3 Switching return...

Page 21: ...ure Thi R1 Thi R3 Thi R2 SH Enthalpy Pressure Evaporator Condenser Condensed temperature CT Evaporated temperature ET Compressor EEV SH SC SH Compressor suction temperature ET Control Pressure control mode Target pressure supply air temperature setting guideline Return air temperature control STANDARD Evaporating temperature 5 12 Condensing temperature 42 47 TYPE1 Evaporating temperature 5 12 Cond...

Page 22: ...ferent Constant System design Difficult Easy Function setting SW7 3 Air temperature control EEV control 1 OFF Return air temperature control SH Cooling SC Heating of indoor unit heat exchanger become constant 2 ON Supply air temperature control Supply air temperature becomes constant EEV control during supply air temperature control To change supply air temperature 1 Change evaporating condensing ...

Page 23: ...Ｕ R C Remorte control Return air sensor Thi A Supply air sensor Thi AF R A temperature setting R C When R A temperature becomes Set R A temperature Thermo OFF Return air R A temperature control Cooling When R A temperature becomes set R A temperature Thermo OFF Time Temperature EEV R C set temperature Supply air temperature Return air temperature SH OFF ON OFF ON SH SH Constant SH Constant Thi R2 ...

Page 24: ...r Outdoor Indoor Cool hot air Outdoor Unit Outdoor Unit ＤＸ ＡＨＵ Exhaust air R C Remote control Supply air sensor Thi AF PCB Return air temperature Set R A temperature Thermo OFF Return air sensor Thi A R A temperature setting R C S Atemperature setting PCB Supply air temperature is controlled to target S A temperature by EEV Supply air temperature control Return air temperature control Cooling When...

Page 25: ...ng The target supply air temperature and the target low pressure are different between STANDARD and TYPE1 Default setting cooling Pressure control mode STANDARD TYPE1 1 Target supply air set temperature 15 25 Target low pressure LP 0 65 0 76MPa LP 0 65 076MPa plus 0 22MPa 1 TYPE1 is set by indoor unit function No 17 Pressure control of RC E5 Pressure control for cooling heating must be the same Ta...

Page 26: ...fset No offset Target supply air temperature offset No offset Offset 1 0 Offset 1 0 Offset 2 0 Offset 2 0 Offset 3 0 Offset 3 0 3 4 4 Supply air temperature control setting heating Target supply air temperature is fixed by the R C function setting The target supply air temperature and target high pressure are different between the STANDARD and TYPE1 Pressure control mode STANDARD TYPE1 1 Target su...

Page 27: ...ir temperature Offset 2 0 Target supply air temperature offset Offset 4 0 40 Offset 1 5 Offset 3 0 39 Offset 1 0 Offset 2 0 38 No offset No offset 36 Offset 1 0 Offset 2 0 34 Offset 1 5 Offset 3 0 33 Offset 2 0 Offset 4 0 32 Cooling mode and heating mode must use the same pressure control mode STANDARD or TYPE1 If the customer wants to reduce the target supply air temperature in heating of STANDAR...

Page 28: ...r temperature Heating mode target supply air temperature 1 OFF 15 12 18 36 32 40 2 ON 15 12 18 24 20 28 3 6 Auto mode changeover temperature The switching temperature between cooling heating can be changed the same as a normal indoor unit 2 Function setting is different from normal indoor units Factory default Remote control function Actual meaning No Function Display on R C 11 VENT LINK SET NO VE...

Page 29: ... 8 Free cooling control Free cooling is the function to control the opening of the by pass damper of the total heat exchanger in cooling mode The by pass damper of the total heat exchanger can be controlled by CND CND outputs on PCB is ON OFF signal according to outdoor temperature return air temperature When using this function the return air temperature sensor should be relocated to the position...

Page 30: ... be adjusted to the system Advantage Keeps required condition Supply air capacity Energy saving Suitable EEV control Advantage of target pressure adjustment Supply air temperature control 1 Not adjusted ET 5 deg C ＦＡＮ EEV Set 18 deg C EEV 50 pulse SH Compressor 80rps 2 Adjusted ＦＡＮ EEV Set ET 10 deg C 18 deg C EEV 220 pulse SH Compressor 70rps EEV pulse small Control range small Low pressure Low L...

Page 31: ...arget Design condition Adjusted Not adjusted 4 2 Target pressure change procedure Target pressure can be changed to meet suitable evaporating condensing temperature by 7 segment display Micro KXZM Standard TYPE1 Standard TYPE1 Cooling target low pressure P11 P11 P40 P73 P40 P73 Heating target high pressure P12 P12 P41 P74 P41 P74 Setting item FDC121 155 KXZEN1 KXZES1 FDC224 280 KXZPE1 FDC280 1680 ...

Page 32: ... in TYPE1 mode 0 00 0 10 0 20 0 70 0 90 0 80 0 10 0 00 5 Display the required adjusting pressure then push SW7 for 3 seconds The setting is memorized in EEPROM 6 Confirm the setting by selecting 7 segment code again Example1 1 FDC400KXE6 2 Air conditioning mode 3 Target condensing temperature is 40 High pressure in heating 2 35 MPa 1 Select C73 2 Select 0 40 2 35 2 75 Data setting deleting SW8 SW9...

Page 33: ...t necessary to change the outdoor unit software version The version was applied in KXZE1 series 5 Summary 1 Single refrigeration systems just use slave EEV Control boxes 2 We recommend to use the SC ADNA E when system B Several slave EEV Control boxes are used in 1 AHU is established and is needed to connect with other indoor unit through the Superlink network 3 In case of system B all return supp...

Page 34: ...tion or electric shock for disconnection or deformation Check the model type Set to an appropriate address and function using switch on PCB Select the same setting with the removed PCB Applied differently depending on the model set For more information please see also the back side Set to an appropriate capacity using the model selector switch SW6 Select the same capacity with the PCB removed from...

Page 35: ...OW INVALID 12 VALID FAN CONTROL ON 11 FAN CONTROL OFF NO VENT 13 VENT LINK STANDARD NO VENT LINK HEATING 12 HEATIING FAN INDN CHANGE FAN NO INDN CHANGE 14 13 NO REMAINING HI MI LO 0 5HR HI LO 1HOUR HI MID 6HOUR 1 FAN SPEED 15 14 NO REMAINING 4POSITION STOP 0 5HR FREE STOP 2HOUR 15 6HOUR HEAT PUMP 16 COOLING ONLY NO REMAINING 16 5minOFF 5minON INDIVIDUAL 17 FOR ALL UNIT STANDARD 17 TYPE 1 INDICATIO...

Page 36: ...erant flow volume OFF Super heat control ON Supply air temp control Reserved keep off Model capacity setting ON OFF Switching PCB setting for single multiple refrigeration system OFF single ON multiple Factory default Slave box address tens place Slave box address ones place Outdoor unit address tens place Outdoor unit address ones place 1 Reserved keep off Reserved keep off Mark Parts name Stays ...

Page 37: ......

Page 38: ...olicy of continuous improvement we reserve the right to make changes in all specifications without notice C MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS LTD 2 3 Marunouchi 3 chome Chiyoda ku Tokyo 100 8332 Japan http www mhi mth co jp en EEV KIT FOR SINGLE REFRIGERATION SYSTEM ...

Reviews:

No comments

Brands by name

Popular brands

Load more brands