Mitsubishi Heavy Industries SAF-DX250E6 User manual

VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS
Alternative refrigerant R410A use models
TECHNICAL MANUAL
(SAF-DX)
SAF-DX250E6 SAF-DX350E6 SAF-DX500E6
SAF-DX800E6 SAF-DX1000E6
Fresh Air DX Assembly
Models
INVERTER DRIVEN MULTI-INDOOR-UNIT
CLIMATE CONTROL SYSTEM
Air-Conditioning & Refrigeration Systems Headquarters
16-5, 2-chome, Kounan, Minato-ku, Tokyo, 108-8215, Japan
Fax : [phone]
No.106(0.55A) R
(1) Regarding the Outdoor unit series, refer to the following table.
• Note:
Reference manuals No.
Data book


 

'09 •KXR-SM-130
Models
4㨪6HP
8㨪12HP
14㨪48HP
Heat recovery
3-pipe ststems
Technical manual Service manual
'08 •KX-T-117
'09 •KX-DB-124 '09 •KX-SM-125
'09 •KX-DB-127 '09 •KX-SM-128
'09 •KXR-DB-129
Manual No. '11
• SAF-T-161
updated March 31, 2011

'11•SAF-T-161
CONTENTS
1. What is SAF-DX ............................................................................................. 1
2. Specifications ................................................................................................ 3
3. Exterior dimensions...................................................................................... 4
4. Electrical wiring............................................................................................. 13
5. Internal resistance characteristics .............................................................. 14
6. Range of usage & limitations ....................................................................... 15
7. Operation control function by the indoor controller.................................. 16
8. User's manual ................................................................................................ 22
9. Installation manual........................................................................................ 23
10. Application example...................................................................................... 32

-
1
-
'11•SAF-T-161
1. What is SAF-DX
• SAF-DX is a kind of indoor unit for KX(R)E6 series categorized into the OA pro-
cessing unit series.
• SAF-DX consists of indoor controller of KX(R)E6 series and an indoor heat ex-
changer without any blower. It can be use in combination with the MHI’s SAF unit
or the total heat exchanger provided locally.
• The lineup is 5 models as shown in following table. Select SAF-DX according to
the processing air volume.
• Mixed use of SAF-DX with KX(R)E6 indoor unit is available.
(Total connectable capacity of KX(R)E6 indoor units including SAF-DX must be
within 100% of outdoor unit capacity)
• Connectable outdoor unit are all KX(R)E6 series (5 to 48HP)
• All two-wire remote controller are available, and all center console also can be
used.
Model capacity 250 350 500 800 1000
Capacity code 22 28 36 56 71
Processing air volume (m3/h) 250 350 500 800 1000
RC-E4 RC-E4 RC-E4 RC-E4 SL3N
SAF-DX
KXE6
KXRE6
FDT
#

-
2
-
'11•SAF-T-161
• SAF-DX is a kind of indoor unit for KX(R)E6 series without any blower and fan.
• The intake OA can be conditioned in cooling or heating at the heat exchanger sec-
tion of SAF-DX by utilizing the blower function of MHI’s SAF unit or the total heat
exchanger provided locally.
• The control of total heat exchanger must be interlocked with SAF-DX.
• Both return air temp. control and supply air temp. control are applicable. (Switching
the control method can be done with the Dip-SW on the control PCB.)
FAN
OA
EA SA
RA
SAF-DX
exchanger
Total heat
SAF-DX
Total heat
exchanger
SA
RA
EA
OA
supply/fresh air
Return/fresh air
temp. sensor
temp. sensor
interlock SW7-3
ON
OFF
Switching between return/supply air temp. control
Control of total heat exchanger
must be interlock with SAF-DX

-
3
-
'11•SAF-T-161
PCH000Z360
SAF-DX500E6 SAF-DX800E6 SAF-DX1000E6
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2. Specifications

-
4
-
'11•SAF-T-161
19
□120
260 4040
90
67
71
A
B
340
170 170
C
170 170
340
160
180
220
337
220
27
67
285
315
64
φ
150
160
φ
150
□450
100
200
G
D
450
E
F
264
Remotecontroller（Option）
Spaceforinstallatinandservice
φ6.35（1／4"）（Flare） B
D
E
VP20
Contents
Gaspiping
Symbol
A
φ9.52（3／8"）（Flare）
Outdoorairduct
Airsupplyduct
Inspectionhole
F
G M10
C
Label,modelname
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Controlbox
（Suspensionboltspitch）
373 337
1818
362
7070
PCH000Z367
3. Exterior dimensions
(1) Without Drain pump
Models SAF-DX250E6, DX350E6

-
5
-
'11•SAF-T-161
19
□120
345 4040
90
67
71
A
B
425
212.5 212.5
C
212.5 212.5
425
160
180
220
337
220
27
67
285
315
64
φ
200
160
φ
200
□450
100
200
G
D
450
E
F
264
Remotecontroller（Option）
Spaceforinstallatinandservice
φ6.35（1／4"）（Flare）
B
D
E
VP20
Contents
Gaspiping
Symbol
A
φ12.7（1／2"）（Flare）
Outdoorairduct
Airsupplyduct
Inspectionhole
F
G M10
C
Label,modelname
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Controlbox
（Suspensionboltspitch）
373 337
1818
362
7070
Model SAF-DX500E6
PCH000Z366

-
6
-
'11•SAF-T-161
19
□120
490 4040
90
67
71
A
B
570
C
320 250
570
160
180
220
337
220
27
67
285
315
64
φ
250
320 250
160
φ250
□450
100
200
G
D
682
450
E
F
264
Remotecontroller（Option）
Spaceforinstallatinandservice
φ6.35（1／4"）（Flare） B
D
E
VP20
Contents
Gaspiping
Symbol
A φ12.7（1／2"）（Flare）
Outdoorairduct
Airsupplyduct
Inspectionhole
F
G M10
C
Label,modelname
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Controlbox
（Suspensionboltspitch）
373 337
1818
362
7070
Model SAF-DX800E6
PCH000Z365

-
7
-
'11•SAF-T-161
Model SAF-DX1000E6
Remotecontroller（Option）
19
□120
Spaceforinstallatinandservice
φ9.52（3／8"）（Flare）
B
D
E
VP20
Contents
Gaspiping
Symbol
A φ15.88（5／8"）（Flare）
630 4040
90
Controlbox
67
71
Outdoorairduct
Airsupplyduct
A
B
G
710
250 270 190
160
C
D
385 325
710
160
180
220
337
220
27
67
285
315
64
φ
250
2-φ200
Inspectionhole
□450
100
200
822
450
F
G M10
E
F
C
264
Label,modelname
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
（Suspensionboltspitch）
373 337
1818
362
7070
PCH000Z364

-
8
-
'11•SAF-T-161
(2) With Drain pump (Option parts:DXA-DU-E)
Models SAF-DX250E6, DE350E6
19
□120
260 4040
90
67
71
A
B
340
170 170
170 170
340
160
180
220
274
337
220
27
62
67
285
315
64
φ
150
160
φ150
□450
100
200
G
D
450
E
F
264
Remotecontroller（Option）
Spaceforinstallatinandservice
φ6.35（1／4"）（Flare） B
D
E
VP20
Contents
Gaspiping
Symbol
A φ9.52（3／8"）（Flare）
Outdoorairduct
Airsupplyduct
Inspectionhole
F
G M10
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Controlbox
VP25Notes（1）
Drainpiping
C
2
C
1
Drainhose（Option）
Localinstallation
C
2
Notes
（1）PleaselocalarrangeconnectedsocketforVP25.
C
1
600orless
295〜325
57
Label,modelname
（Suspensionboltspitch）
373 337
1818
362
7070
(Max.DrainLift)
A
PCH000Z372

-
9
-
'11•SAF-T-161
Model SAF-DX500E6
19
□120
345 4040
90
67
71
A
B
425
212.5 212.5
212.5 212.5
425
160
180
220
274
337
220
27
62
67
285
315
64
φ
200
160
φ200
□450
100
200
G
D
450
E
F
264
Remotecontroller（Option）
Spaceforinstallatinandservice
φ6.35（1／4"）（Flare） B
D
E
VP20
Contents
Gaspiping
Symbol
A φ12.7（1／2"）（Flare）
Outdoorairduct
Airsupplyduct
Inspectionhole
F
G M10
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Controlbox
VP25Notes（1）
Drainpiping
C
2
C
1
（1）PleaselocalarrangeconnectedsocketforVP25.
Drainhose（Option）
Localinstallation
C
2
Notes
C
1
600orless
295〜325
57
Label,modelname
（Suspensionboltspitch）
373 337
1818
362
7070
(Max.DrainLift)
A
PCH000Z371

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10
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'11•SAF-T-161
19
□120
490 4040
90
67
71
A
B
570
320 250
570
160
180
220
274
337
220
27
62
67
285
315
64
φ
250
320 250
160
φ
250
□450
100
200
G
D
682
450
E
F
264
Remotecontroller（Option）
Spaceforinstallatinandservice
φ6.35（1／4"）（Flare） B
D
E
VP20
Contents
Gaspiping
Symbol
A φ12.7（1／2"）（Flare）
Outdoorairduct
Airsupplyduct
Inspectionhole
F
G M10
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Controlbox
VP25Notes（1）
Drainpiping
C
2
C
1
Drainhose（Option）
Localinstallation
Notes
（1）PleaselocalarrangeconnectedsocketforVP25.
C
1
C
2
600orless
295〜325
57
Label,modelname
（Suspensionboltspitch）
373 337
1818
362
7070
(Max.DrainLift)
Model SAF-DX800E6
A
PCH000Z370

-
11
-
'11•SAF-T-161
Remotecontroller（Option）
19
□120
Spaceforinstallatinandservice
φ9.52（3／8"）（Flare）
B
D
E
VP20
Contents
Gaspiping
Symbol
A φ15.88（5／8"）（Flare）
630 4040
90
Controlbox
67
71
Outdoorairduct
Airsupplyduct
A
B
G
710
250 270 190
160
D
385 325
710
160
180
220
337
220
27
67
285
315
64
φ
250
2-
φ200
Inspectionhole
□450
100
200
822
450
F
G M10
E
F
264
Label,modelname
Holeforpowersourceline
Wiringholefortotalenthalpy
Holeforcommunicationline
Suspensionbolts
heatexchanger
Liquidpiping
Drainpiping
（Suspensionboltspitch）
Notes
（1）PleaselocalarrangeconnectedsocketforVP25.
Drainhose（Option）
Localinstallation
C
2
VP25Notes（1）
Drainpiping
C
2
C
1
C
1
600orless
295〜325
(Max.DrainLift)
57
274
62
（Suspensionboltspitch）
373 337
1818
362
7070
Model SAF-DX1000E6
A
PCH000Z369

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12
-
'11•SAF-T-161
PJZ000Z274
(3) Remote controller (Option parts)
• Wired remote controller (Model : RC-E4)

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13
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'11•SAF-T-161
4. Electrical wiring
Models All model
Notes1.indicateswiringonsite.
2.Usetwincorecable（0.75〜1.25mm）atsignallinebetweenindoorunit
2

andoutdoorunit,andsignallinebetweenindoorunits. 
4.Usetwincorecable（0.3mm
2
）atremotecontrollerline.(Refertopage12)
ofremotecontrollerincasethatthetotallengthismorethan100m.
5.Donotputsignallineandremotecontrollerlinealongsidepowersourceline.
ColorMarks
Mark
BK
BL
BR
GR
Color
Black
Blue
Brown
Gray
OR Orange
RD Red
WH White
Y Yellow
Y／GN Yellow／Green
Floatswitch
Drainmotor
Th-R1,2,3
Th-A
FS
DM
Thc
TB1
F
LED・3
LED・2
Fuse
SW6
Tr
SW5-1
Transformer
SM
Indoorunitaddress:tensplace SW1
SW2
SW3
SW4
SW5-2
■mark Closed-endconnector
CNA〜Z Connector
SW7-1
I
I
I
Livesuperlinkterminalsetting（forspare） JSL1
TB2
X1〜3,6
X4
RelayforFM
XR2 Relay（DC12V）
52X1,51X1 Relay（AC200V）
Th-AF I
Indicationlamp（Green-Normaloperation）
Indicationlamp（Red-Inspection）
Steppingmotor（forelectronicexpansionvalve）
Indoorunitaddress:onesplace
Outdoorunitaddress:tensplace
Outdoorunitaddress:onesplace
Automaticadjustment／Fixedprevious
versionofSuperlinkprotocol
Indoorunitaddress:hundredsplace
Modelcapacitysetting
Operationcheck,Drainmotortestrun
Terminalblock（Powersource）（□mark）
Terminalblock（□mark）
Thermistor（Remotecontroller）
Thermistor（Returnair）
Thermistor（Serviceair）
Thermistor（Heatexchanger）
RelayforDM
TB3 Terminalblock（Signalline）（□mark）
SW7-2 Reserved
SW7-3
SW7-4 Pressuresetting
XR1
XR2
XR3
XR4
XR5
Option
1
2
3
4
5
6
+12
CNT
X3
CNW0
RD
X6
1 753
X1
X2
ControlPCB
DM
CNR2
9WH 31
Y
BL Y
X4
CNR
CNI
BL
SW6
SW5
131
CNB
SW2SW1
SW4SW3
SM
1
CNA
532 4
SW7
F（0.16A）
LED・3
LED・2
TB3
YX
YX
1〜
MFS
M
Superlink（spare）
JSL1
CNK2
CNN
Y
CNW1
220V-240V
CNH
Th-A
19V
CNW2
t° t°t°
t°
Thc
YX
24V
I
214321
t°
65
Th-R3 I Th-R2 I Th-R1 I
6
2
BA
WH
CNK1
WH
（20S）
（SVH）
（SVG）
（SVE）
XB1
XB2
XB3
XB4
1
2
3
4
5
+12
CNT2
RD
TB1
WH
RD
220-240V〜50Hz
Powersource
CNU
1
3
BL
N
LF（3.15A）
F（3.15A）
Y／GN
Earth
BK
Tr
I
3 4 5 6
52X1
XR2
51X1
C UH H M L
51X1
Heatexch（air） Humidifier
operation
TB2
3
5
7
8WH
CNM3
7
8
RD
Y78
1
5
CNI2
WH
CNF
Th-AF
t°
I
21
220V〜60Hz
Single-phase
Power
source
line
Powersourceline
betweenindoorunits
Connectorforbranching
controllerofheatrecovery
3-pipesystems
RD WH
RD WH
RD
WH
Remote
controller
（Operation）
（Heating）
（ThermoON）
（Inspection）
（Remoteoperationinput
BK BK BK BK GR GR BK BK
BK
BK BK
Y
BK BK RD BR RD BR
BKWH
BL
Forheatrecovery3-pipesystems
RD BL BK WH
Signalline
（Shieldedcord）
Signalline
betweenindoorunits
RD BL OR
Y
WH
RD
RD
RD
BR WHWH
BR WH BK BL RD
BR
abnormal
Y Y
WH
※1
1 2
52X1
3
5
operation
Y Y
Heatexch（air）
<1> <2> <3> <4> <5> <6>
:volt-freecontact）
Return／Supplyairtemp.controlsetting
CND
Freecooling
21
BL
3.TerminalABissignalterminal.（5volt）
A
PCH000Z368

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14
-
'11•SAF-T-161
SAF-DX250E6,350E6
SAF-DX500E6
SAF-DX800E6
SAF-DX1000E6
Air flow [m
3
/h]
Internal resistance [Pa]
200 400 600 800 1000 1200
250 300 350 500
10
20
30
40
50
60
70
80
90
100
5. Internal resistance characteristics

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15
-
'11•SAF-T-161
6. Range of usage and limitations
SAF-DX
of the front cover)
3 3 3
(Refer to the front cover)
(Refer to the front cover)
PCH000Z374
3 3 3
SAF-DX)
of the front cover.)
DX is
DX is

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16
-
'11•SAF-T-161
SW7: Function setting
SW1-SW4: Address settings
SW6: Capacity selection
SW1-4 : Superlink address settings (indoor unit/outdoor unit).
SW6 : Capacity selection (no need to change).
SW7 : Function setting of SAF-DX. (See next page for details).
CND
7. Operation control function by the indoor controller
(1) SAF-DX Control Section
(2) SAF-DX Control PCB
Signal line
Remote controller line
Return air temp. sensor
Supply air temp. sensor
Heat exchanger temp.
sensor, RRT coil.
Float switch.
SAF-DX
control PCB
Terminal block
Control box
for power cable *1)
Total heat exchanger
operation command
Power line
Single phase
220-240V (50Hz)
*1)
The capacity of indoor
fan motor input is not
included.
EEV

-
17
-
'11•SAF-T-161
SW Function On/Off Setting
SW7-1 Test run/drain motor check
䃨Off Normal
On
On
Test run
SW7-2 Reserved 䃨Off Keep OFF
SW7-3 Switching return/supply
air temp. control
䃨Off Ruturn air temp. control
On Supply air temp. control
SW7-4 Automatic supply air temp.
adjust. control
䃨Off Invalid
On Valid
䃨factory default
1. SW7-1 is same function for KX(R)E6 indoor unit
䋲. SW7-2 should be kept OFF.
SAF-DX
Total heat
exchanger
SA
RA
EA
OA
return/fresh
air temp. sensor
supply/fresh
air temp. sensor
(3) SW7 Function setting
(4) Switching return/supply air temp. control
・
Supply air temp. control is available as OA processing unit (supply air temp.
sensor is already equipped.)
・
When SW7-3 is Off, it become return air temp. control and indoor EEV is
controlled to keep the superheat of heat exchanger constant.
(factory setting, same as normal KX(R)E6 indoor unit)
・
When SW7-3 is On, it become supply air temp. control. The indoor EEV is
controlled to keep the supply air temp. constant.

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18
-
'11•SAF-T-161
(5) Return air temp. control
・
Same control as normal air conditioner, RAC, PAC, KX...
・Thermo ON/OFF control :
Temp. difference between R/A temp. sensor (or R/C sensor)
and set temp. by R/C.
(6) Supply air temp. control
・
Target S/A temp. is fixed and can be adjusted by RC-E3/4.
・Thermo ON/OFF control :
Temp. difference between R/A temp. sensor (or R/C sensor)
and set temp by R/C (same as return air temp. control)
・Cooling : Set return air temp. must be greater than Target supply temp.
Heating : Set return air temp. must be less than Target supply temp.
(If not, Set temp. becomes Target supply temp.)
Return air temp.
≒Set R/A temp.
Supply air temp.
≒Target S/A temp.
Return air temp. control
R/A temp. is set by R/C
Return air temp.
becomes Set R/A temp.