Table of Contents
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TECHNICAL MANUAL
VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS
Alternative refrigerant R410A use models
Fresh Air DX Assembly
Models
Note:
•
SAF-DX250E6 SAF-DX350E6 SAF-DX500E6
SAF-DX800E6 SAF-DX1000E6
(1) Regarding the Outdoor unit series, refer to the following table.
Models
Technical manual
4 6HP
'08
•
8 12HP
14 48HP
Heat recovery
3-pipe ststems
(SAF-DX)
Reference manuals No.
Data book
KX-T-117
'09
KX-DB-124
•
'09
KX-DB-127
•
'09
KXR-DB-129
•
Manual No. '11
SAF-T-161
•
updated March 31, 2011
Service manual
'09
KX-SM-125
•
'09
KX-SM-128
•
'09
KXR-SM-130
•
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Table of Contents
Related Manuals for Mitsubishi Heavy Industries SAF-DX250E6
Summary of Contents for Mitsubishi Heavy Industries SAF-DX250E6
- Page 1 TECHNICAL MANUAL VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS Alternative refrigerant R410A use models Fresh Air DX Assembly (SAF-DX) Models SAF-DX250E6 SAF-DX350E6 SAF-DX500E6 SAF-DX800E6 SAF-DX1000E6 Note: • (1) Regarding the Outdoor unit series, refer to the following table. Reference manuals No. Models...
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Page 2: Table Of Contents
'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. -
Page 3: What Is Saf-Dx
'11•SAF-T-161 1. What is SAF-DX • S AF-DXisakindofindoorunitforKX(R)E6seriescategorizedintotheOApro- cessingunitseries. • S AF-DX consists of indoor controller of KX(R)E6 series and an indoor heat ex- changerwithoutanyblower.ItcanbeuseincombinationwiththeMHI’sSAFunit orthetotalheatexchangerprovidedlocally. • T helineupis5modelsasshowninfollowingtable.SelectSAF-DXaccordingto theprocessingairvolume. Model capacity 1000 Capacity code Processing air volume (m 1000 • M ixeduseofSAF-DXwithKX(R)E6indoorunitisavailable. - Page 4 '11•SAF-T-161 • S AF-DXisakindofindoorunitforKX(R)E6serieswithoutanyblowerandfan. • T heintakeOAcanbeconditionedincoolingorheatingattheheatexchangersec- tionofSAF-DXbyutilizingtheblowerfunctionofMHI’sSAFunitorthetotalheat exchangerprovidedlocally. Total heat SAF-DX exchanger • T hecontroloftotalheatexchangermustbeinterlockedwithSAF-DX. • B othreturnairtemp.controlandsupplyairtemp.controlareapplicable.(Switching thecontrolmethodcanbedonewiththeDip-SWonthecontrolPCB.) SAF-DX Total heat Return/fresh air supply/fresh air temp. sensor exchanger temp. sensor SW7-3 interlock Control of total heat exchanger must be interlock with SAF-DX Switching between return/supply air temp.
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Page 5: Specifications
SAF-DX250E6 SAF-DX350E6 SAF-DX500E6 SAF-DX800E6 SAF-DX1000E6 RoHS... - Page 14 '11•SAF-T-161 (3) Remote controller (Option parts) •Wiredremotecontroller(Model:RC-E4) PJZ000Z274...
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Page 16: Internal Resistance Characteristics
'11•SAF-T-161 5. Internal resistance characteristics SAF-DX1000E6 SAF-DX800E6 SAF-DX500E6 SAF-DX250E6,350E6 Air flow [m... -
Page 17: Range Of Usage & Limitations
(Refertothefrontcover) (Refertothefrontcover) DXis SAF-DX) SAF-DX DXis ofthefrontcover) ofthefrontcover.) -
Page 18: Operation Control Function By The Indoor Controller
'11•SAF-T-161 7. Operation control function by the indoor controller (1) SAF-DX Control Section Control box Terminal block for power cable *1) The capacity of indoor fan motor input is not SAF-DX included. control PCB Power line Single phase 220-240V (50Hz) Total heat exchanger operation command Return air temp. - Page 19 '11•SAF-T-161 (3) SW7 Function setting factory default Function On/Off Setting Off Normal Test run/drain motor check SW7-1 Test run Off Keep OFF Reserved SW7-2 Off Ruturn air temp. control Switching return/supply SW7-3 air temp. control Supply air temp. control Off Invalid Automatic supply air temp.
- Page 20 '11•SAF-T-161 (5) Return air temp. control ・ S amecontrolasnormalairconditioner,RAC,PAC,KX... ・ThermoON/OFFcontrol: Temp.differencebetweenR/Atemp.sensor(orR/Csensor) andsettemp.byR/C. Return air temp. control R/A temp. is set by R/C Return air temp. becomes Set R/A temp. (6) Supply air temp. control ・ T argetS/Atemp.isfixedandcanbeadjustedbyRC-E3/4. ・ThermoON/OFFcontrol: Temp.differencebetweenR/Atemp.sensor(orR/Csensor) andsettempbyR/C(sameasreturnairtemp.control) ・Cooling:Setreturnairtemp.mustbegreaterthanTargetsupplytemp.
- Page 21 '11•SAF-T-161 (7) Supply air temp. control in cooling ・ T hetargetsupplyairtemp.isfixed. Target supply air temp. in cooling Target supply air temp. in cooling Target low pressure LP 0.65-0.76MPa Target low pressure LP 0.65-0.76MPa ・ A djustingthetargettemp.canbedonebyRC-E3/4remotecontrollerfunc- tionsettingNo.01andNo.08.“01”featureisonlyRC-E3.Adjustablerangeof targetsupplyairtemp.is±3℃. Target supply air temp. can be set from 12 to 18 .
- Page 22 '11•SAF-T-161 (9) Automatic supply air temp. adjust. control ・ I ncaseSW7-4isON,whentheroomtemp.becomesthesettemperature, targetpressureischangedautomatically. Cooling Heating Controllerchecksreturnairtemp.every2minsanddecidestargetpressure. Thepurposeofthiscontrolispreventingfromovercooling/overheating. Applicationcondition ・SystemhasonlySAFunits ・Detectroomtemp.(UseRemotecontrollersensororRemotesensor) Example of automatic supply air temp. adjust. control in cooling Inverter actual Hz supply air temp. Low pressure Indoor heat exch.temp. At the intersection of the solid line (mark ), since the room temp.
- Page 23 '11•SAF-T-161 (10) Free cooling function ・ F reecoolingisthefunctiontocontroltheopeningoftheby-passdamperof totalheatexchangerincooling. return air temp. increasing return air temp. decreasing return air temp.= Outdoor air temp.( ) return air temp. increasing ・ B y-passdamperofthetotalheatexchangercanbecontrolledbyCnD. return air temp. decreasing CNDonPCBoutputsON/OFFsignalaccordingtooutdoortemp(=return return air temp.= Outdoor air temp.( ) temp.).
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Page 24: User's Manual
'11•SAF-T-161 8. User’s manual PSA012B751 Fresh Air DX Assembly (SAF-DX) Supplementary Information This User’s manual addresses only a topic particular to this unit (more specifically, the underlined section). For any other contents, refer to the User’s manual attached to the outdoor unit. HOW TO OPERATE <WIRED REMOTE CONTROL>... -
Page 25: Installation Manual
'11•SAF-T-161 9. Installation manual DUCT CONNECTED HIGH STATIC PRESSURE AIR CONDITIONING UNIT INSTALLATION MANUAL This manual is for the installation of an indoor unit. CAUTION For electrical wiring work (Indoor), refer to the electrical wiring work installation manual. For remote controller installation, refer to the installation manual attached to a remote controller. - Page 26 (A beam from lighting device sometimes affects the infrared receiver for the wireless remote ø150 ø150 SAF-DX250E6 controller and the air conditioner might not work properly.) Check if the place where the air conditioner is installed can hold the weight of the unit. If it is not able to hold, reinforce the structure with boards and beams strong enough to hold it.
- Page 27 Gas pipe φ9.52 Flare connection hose, and fix and wrap it with tapes to wrap and make joint part gapless. The thickness of insulation should be 20mm or more. Liquid pipe φ 6.35 Flare connection SAF-DX250E6 Gas pipe φ9.52 Flare connection...
- Page 28 '11•SAF-T-161 Check list after installation Drain pipe (continued) Check the following items after all installation work completed. Drain up Check if Expected trouble Check The position for drain pipe outlet can be raised up to 600mm above the ceiling. Use elbows for installation to avoid obstacles inside ceiling.
- Page 29 (countermeasure thing to high harmonics.) breaker length line capacity line line Absence of breaker could cause electric shock. SAF-DX250E6 350E6 Use the circuit breaker of correct capacity. Circuit breaker should be the one 2.0mm 0.75~ 0.3mm 15A 30mA 0.1sec 500E6 2000m 2.0mm...
- Page 30 '11•SAF-T-161 Remote Control, Wiring and functions Trial operation (continued) Do not install it on the following places. 2. Ending a cooling test run. (1) Place exposed to direct sunlight (4) Hot surface or cold surface enough to generate condensation Pressing the button, the (TEMP) button or (MODE) button will end a...
- Page 31 '11•SAF-T-161 Function Setting by Remote Controller The functional setting The initial function setting for typical using is performed automatically for a remote control unit and an indoor unit by the door unit connected, when remote controller and inside unit are connected. As long as they are used in a typical manner, there wiil be no need to change the initial settings.
- Page 32 '11•SAF-T-161 Function Setting by Remote Controller Note 1 Note 2 Note 3 Auto operation control Outlet temperature control Pressure control OFF •If the remote control operation switch is set to the “Auto”, the “Cooling”, Pressure control is selectable with SW7-4. •Outlet temperature control is effective when SW7-3 is set to ON.
- Page 33 '11•SAF-T-161 Troubleshooting The operation data is saved when the situation of abnormal operation happen, Error code of indoor unit and the data can be confirmed by remote controller. [Operating procedure] Display on LED on indoor circuit board Content remote red (checking) green (normal) 1.
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Page 34: Application Example
'11•SAF-T-161 10. Application example (1) Example 1 Example of the combination with Example of the combination with SAF-DX and Total heat exchanger SAF-DX and Total heat exchanger KX(R)E6 KX(R)E6 Total heat exchanger Total heat Refrigerant piping exchanger SAF-DX Refrigerant piping SAF-DX Remote Remote... - Page 35 VRF INVERTER MULTI-SYSTEM AIR CONDITIONERS Air-Conditioning & Refrigeration Systems 16-5, Konan 2-chome, Minato-ku, Tokyo, Japan Fax : (03) 6716-5926 Because of our policy of continuous improvement, we reserve the right to make changes in all specifications without notice. Copyright MITSUBISHI HEAVY INDUSTRIES.LTD...
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