Midea MAD020T1N1S1 Technical Manual
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Midea MAD020T1N1S1 Technical Manual

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Midea Precision AC Technical Manual-Down Delivery Series
MCAC-RTSM-2013-04
Midea Precision Air Conditioner
Technical Manual
（Down delivery series）
Midea reserves the right to discontinue, or change specification or designs at any time without
notices and without incurring obligations.
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  • Page 1 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual-Down Delivery Series MCAC-RTSM-2013-04 Midea Precision Air Conditioner Technical Manual （Down delivery series） Midea reserves the right to discontinue, or change specification or designs at any time without notices and without incurring obligations.

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series Content 1. GENERAL INFORMATION ..............3   1.1 M ......................3  EASUREMENTS 1.2 E ....................4  XTERNAL APPEARANCE 1.3 N ......................5  OMENCLATURE 2. SPECIFICATION & PERFORMANCE ..........6  ...
  • Page 3 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 5.1 T ..........65  EMPERATURE HUMIDITY SET POINT SETTING FUNCTION 5.2 Q .......... 65  UERY FUNCTION FOR KEY COMPONENTS OPERATING STATUS 5.3 S ..............67  ETTING FUNCTION OF USING PARAMETERS 5.4 M...

  • Page 4: General Information

    All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series 1. General information 1.1 Measurements Dimension Outdoor unit Type Model Power Supply (mm, W×H×D) (Quantity) Indoor MAD020T1N1S1 895×1,971×870 380V~,3Ph,50Hz 20kW Outdoor MA0331 1,470×988×870 380V~,3Ph,50Hz Indoor MAD025T1N1S1 895×1,971×870...

  • Page 5: External Appearance

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual M MCAC-PDSM M-2013-01 1.2 Extern nal appear rance Indoor r unit-20kW, , 25kW, 30k Indoor r unit-35kW, , 40kW, 45k kW, 50kW, 6 60kW: Indoor r unit-70kW,...

  • Page 6: Nomenclature

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma a nual-Down Delivery Series Outdoo or unit-Sing gle fan moto Outdoo or unit-Dou uble fan mo tors: 1.3 Nome nclature Indoor un...

  • Page 7: Specification & Performance

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Outdoo or unit 2. Speci ification n & perfo ormance 2.1Features  V shap pe design hi igh efficient evaporator r with hydro ophilic alumi...
  • Page 8 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  Multiple e protections s: High and low pressur re protection n, discharge temperature re protection n, etc.  The run...

  • Page 9: Refrigerant Circuit

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual M M CAC-PDSM M -2013-01 2.2 Refrig gerant circ cuit Single refrigerant t circuit typ e:...
  • Page 10 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series Dual-re efrigerant c circuits type Compr ressor: R41 0A, scroll co ompressor. Evapor rator (Heat exchanger ): Copper tu ube and alum...

  • Page 11: Specifications

    All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 2.3 Specifications Indoor model MAD020T1N1S1 Outdoor model (×Quantity) MA0331 (×1) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 12 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series Speed r/min No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Fin type Hydrophilic aluminum fin Outdoor coil Ф9.52 Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 13 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD025T1N1S1 Outdoor model (×Quantity) MA0431 (×1) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 14 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Fin type Hydrophilic aluminum fin Ф9.52 Pipe outside dia. and type Inner grooved copper pipe Coil (W×D) 1,250×914.4 Number of circuits...
  • Page 15 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD030T1N1S1 Outdoor model (×Quantity) MA0541 (×1) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 16 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Fin type Hydrophilic aluminum fin Ф9.52 Pipe outside dia. and type Inner grooved copper pipe Coil (W×D) 1447×1219 Number of circuits...
  • Page 17 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD035T1N1S1 Outdoor model(×Quantity) MA0601 (×1) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 18 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Fin type Hydrophilic aluminum fin Outdoor coil Ф9.52 Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 19 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD040T2N1S1 Outdoor model(×Quantity) MA0331 (×2) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 20 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Outdoor coil Fin type Hydrophilic aluminum fin (Single Ф9.52 outdoor unit) Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 21 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD045T1N1S1 Outdoor model(×Quantity) MA0752 (×1) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 22 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Fin type Hydrophilic aluminum fin Outdoor coil Ф9.52 Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 23 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD050T2N1S1 Outdoor model(×Quantity) MA0431 (×2) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 24 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Outdoor coil Fin type Hydrophilic aluminum fin (Single Ф9.52 outdoor unit) Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 25 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD060T2N1S1 Outdoor model(×Quantity) MA0541 (×2) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 26 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Outdoor coil Fin type Hydrophilic aluminum fin (Single Ф9.52 outdoor unit) Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 27 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD070T2N1S1 Outdoor model(×Quantity) MA0601 (×2) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 28 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Outdoor coil Fin type Hydrophilic aluminum fin (Single Ф9.52 outdoor unit) Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 29 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD080T2N1S1 Outdoor model(×Quantity) MA0752 (×2) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 30 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Outdoor coil Fin type Hydrophilic aluminum fin (Single Ф9.52 outdoor unit) Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)
  • Page 31 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Indoor model MAD090T2N1S1 Outdoor model(×Quantity) MA0982 (×2) Indoor operating ambient temperature range °C 0~40 Outdoor operating ambient temperature range °C -20~45, (-40~45, with low ambient temperature kit) Altitude ≤1000m (higher than 1000m, derating use)
  • Page 32 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series No. of rows Tube pitch(a)×row pitch(b) 25.4×22 Fin spacing Outdoor coil Fin type Hydrophilic aluminum fin (Single Ф9.52 outdoor unit) Pipe outside dia. and type Inner grooved copper pipe Coil (W×D)

  • Page 33: Dimension (Unit : Mm )

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M -2013-01 2.4 Dimen nsion (Uni t: mm) Indoor r unit: MAD0 020T1N1S1 , MAD025T T1N1S1, MA AD030T1N1S...
  • Page 34 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down Delivery Series View of op pened door Indoor r unit: MAD0 035T1N1S1 33 3...
  • Page 35 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Indoor r unit: MAD0 040T2N1S1 , MAD045T T1N1S1, MA AD050T2N1S S1, MAD060 0T2N1S1 Indoor r unit: MAD0 070T2N1S1 , MAD080T T2N1S1, MA AD090T2N1S...
  • Page 36 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down Delivery Series Outdoo or unit: MA A0331, MA04 431, MA054 41, MA0601 Outdoo or unit: MA A0752, MA09 Mode MA033 MA043 MA054 MA060 MA075...

  • Page 37: Ervice Space

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual M M CAC-PDSM M-2013-01 2.5 Servic ce space Indoor r unit (Unit: Outdoo or unit with h horizontal installation n (Unit: mm Outdoo or unit with...

  • Page 38: Iring Diagram

    All manuals and user guides at all-guides.com Midea Precision AC Technical Manual-D Down Delivery Serie e s MCA A C-RTSM-2013-04 2.6 Wiring diag gram E-box view o of indoor unit...
  • Page 39 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC C -PDSM-2013-01 Indoor unit w with single syst tem- Controlling g connection am mplification figur Available for M MAD020T1N1S1, M MAD025T1N1S1, MA AD030T1N1S1, an d MAD035T1N1S, MAD045T1N1S1...
  • Page 40 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual-Do own Delivery S Series MCAC-RT TSM-2013-04 Outdoo or unit- MA A0331, MA04 431, MA054 41, MA0601 Outdoo or unit- MA A0752, MA09...

  • Page 41: Installation

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 3. Instal llation  The e indoor unit t must be in stalled on th he ground of f the device room or com mputer room m.
  • Page 42 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  hen the cond denser is hig gher than co ompressor, i nstall revers se bend on t the inlet and...

  • Page 43: Storage Environment

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 3.1 Storag ge environ nment Items Requirement orage environ nment oor, clean. mbient humidi ~85% RH (N No condensa ation) mbient temper rature oor unit: -20 °...
  • Page 44 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  Do not fix the i ndoor unit in n the sunken n place or at t the end of the long and d narrow roo ...
  • Page 45 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01  Thr ree-door uni it installation n basing size e: (Unit: mm Spec ification (mm Remar Steel plate ×100×(5~6.5) Angle iron (St teel channel) 40×40...

  • Page 46: Installing Outdoor Units

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 3.3 Install ling outdo oor units  ter the unit a arrives, chec ck whether i t is damage ed during the e shipment.

  • Page 47: Connecting Refrigerant Pipe

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 nit: mm) Mode MA033 1112 MA043 MA054 1310 MA060 1066 MA075 1604 2105 MA098  It i s suggested d that use M M6×20 expan...
  • Page 48 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series ocess, it nee eds to charg ge nitrogen i nto the pipe eline for prot ection.  ake sure the e right conne ecting pipe s size.
  • Page 49 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Do not open the system pipeline more than 15 minutes, or it will lead to freeze the cooling oil and  influence the usage lifespan of the key parts in the system and the system operation stability.

  • Page 50: Vacuum And Add Refrigerant

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series e operation o of the comp ressor and i its lifespan.T Trash and fo oreign matte ers may com me into the...

  • Page 51: Ater Pipe Installation

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 dding amount t of refrigeran nt (kg) = orresponding unit Length additional ref frigerant amo ount (kg/m) ×T Total length o of extend liqu...
  • Page 52 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series B ≥ ≥ P/10+20 (Un nit: mm) A ≥ ≥ B/2 (Unit: m Air outlet sta atic pressure (Unit: Pa) ...

  • Page 53: Lectric Connection

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 3.7 Electr ic connec ction  the power w wires, contro olling wires a and the gro unding conn nection shou uld observe the national...
  • Page 54 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  door unit con ntrolling con nnection amp plification fig gure: Sing gle-system type al-system t type  iring refers t...
  • Page 55 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01  eld wiring, Single-sys stem type Dual-syste m type\  se protection n pipe or shi elding wire f for the outdo oor parts of...

  • Page 56: Trial Run

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 3.8 Trial ru  troduction of f LCD manu ual operator functions or all th butto ons, when it is displaying...
  • Page 57 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Time: hift to the firs st page of tim me program (K0). Time parameter i s used to di isplay and s et the...
  • Page 58 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  he mechanic cal part:  Make sure e remove th he protective e materials fo or the transp portation. Ch...
  • Page 59 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 and use th he enter key y to move th he cursor po sition, and u use the Dow wn button to carry out the...
  • Page 60 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series  Compressor checking: Press the Set key, the setting temperature to be room temperature minus 5°C, the relative humidity to be the same as the room temperature, and press enter to observe the compressor whether operates or reverses.
  • Page 61 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01  Safe operation of refrigerant system detection: Operate the compressor, and after the unit is stable operated then check whether there are bubbles in the liquid sight glass. Adjust the thermal expansion valve to the suction degree of overheating be about 5°C~8°C, and...

  • Page 62: Control System

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 4. Contr rol syste 4.1 Table of main co ontrol com mponents and cont rol load Name quantity Cont troller ration displa ayer mperature &...
  • Page 63 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual M M CAC-PDSM M -2013-01 ompressor 1 1 high press sure ompressor 2 2 high press sure -heater 1 ov verload -heater 2 ov verload hase seque...
  • Page 64 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  door schema atic diagram  utdoor fan fr requency co nversion Button Mame Func ctions 1, For shiftin ng to system m monitoring sta atus.

  • Page 65: Main Control Function

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Accord to th he function cod de to carry ou t one of the fo ollowing functi ons: 1, Change t the operating d direction of inv verter.

  • Page 66: Temperature / Humidity Set Point Setting Function

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 5. Opera ation 5.1 Tempe erature/hu umidity se t point se etting func ction Press S Set in men u, directly e...
  • Page 67 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual M M CAC-PDSM M-2013-01 Note: Interface es of Ig, Ih, Ii a and Ij display y the humidif fier operating g status.

  • Page 68: Setting Function Of Using Parameters

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 5.3 Settin g function n of using paramete ess the Prg button in m menu, it need d password t to enter: ...

  • Page 69: Maintenance Management

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Notes: terface P1 to set the temp erature settin ng range. terface P2, P3 3 and P4 to s et the deviati ion and dead d zone.

  • Page 70: Clock Management

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series Notes: ease contact manufacture e for mainten ance passwo ord. eep pressing g Down butt ton, the disp play screen will pop up...
  • Page 71 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Press D Down button n, enter to K K1 interface and type in clock mana gement pas ssword 002. Press ente to ente r K2 interfac...

  • Page 72: Network Function Introduction

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 6. Netwo ork func ction int troductio Manua l operator an nd controler r can be con nnected toge ether by RS4...

  • Page 73: Group Control Network Setting

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 6.1 Group p control n network se etting Accord ing to the pr revious pictu ure, an exam mple of how to set group...
  • Page 74 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  Change e the contro ller address of the devic ce 2. Cut off the controlle er power an d the conne...
  • Page 75 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01  Configu ure the corre esponding re elation of co ontroller and the manual l operator. Press U Up, Down a and enter bu...
  • Page 76 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series and the en press ent ter for confir rmation, the n finish grou up control ne etwork confi iguration of one device.
  • Page 77 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 Press m menu to exit t the interfac ce of configu uration man agement, an nd press Do own to move e the cursor...
  • Page 78 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series  Wire fig gure of contr roller in grou up control ne etwork. 3-core shielding wi re (large or equal to 0.7...

  • Page 79: The Ethernet Communication Card Introduction

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01  Cancel group contr rol network.  ose the unit. . Switch off t the controlle er power and d the networ rk connectio...
  • Page 80 All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series Insert the T TCP/IP card d in th corres sponding plu ug-in connec ctor, making g sure it is su ully inserted...
  • Page 81 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01 ielding cable e is 1000m.  stallation of RS485 card Remove th he serial car rd placemen nt cover with h a screwdriv Remove th...

  • Page 82: Maintenance

    All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series connector on the card. 6. There is a table of Pin-wiring of the connector stamped on the card. Significato meaning RX+/TX+ RX-/TX- 7. Maintenance 7.1 Electrical maintenance According to the following items to check appearance of the electrical connections and do the relative handlings.

  • Page 83: Filter Screen Maintenance

    All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01  heck the out tput connect tion between n the contro ol connector panel to ea ach contacto or, liquid pipe ectromagnet tic valve, an...

  • Page 84: Indoor Fan Components Maintenance

    All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series the filter screen clogging switch. The filter screen clogging switch is located in the electric control box, and collect the large air pressure and filtered air pressure through the white soft hose, and the filter screen clogging switch to compare the two pressure difference to judge the output.
  • Page 85 All manuals and user guides at all-guides.com Midea Precisi on AC Technic cal Manual MCAC-PDSM M-2013-01  struction of t the steam hu umidifier com mponent pa arts which ne eed to maint tain. Item Support frame Water s upply tank +...

  • Page 86: Electrical Heating Components

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series remove all l the impurit ies and rinse e off.  sassembling g the humidi fication tank Press the Manual dra...

  • Page 87: Compressor Monitoring And Replacement

    All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 situation of the system. When the water content of system is more than the standard, the liquid sight glass basic color will change from green to yellow. When the refrigeration system has malfunction, judge the error according to some operating parameters of the system.

  • Page 88: Outdoor Fan Maintenance

    All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series 1. Mechanical error The mechanical error of compressor is mostly because that during the installation process it is not strictly accorded to the operation guidelines, and the system refrigerant leakage and improper trial run in the process of the construction and operation, and then cause the compressor return liquid operation in long term.

  • Page 89: Trouble Shooting

    All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 8. Trouble shooting When the system is suddenly having a demand, but there is a failure or invalidation which led to non-workable, and then it cannot meet environmental needs. So it is necessary to periodically do the functional test for the system components.
  • Page 90 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series Common faults and handling methods of humidification system  Symptom Probable reason Check items or handling methods Check the water source. No water filling in the humidification tank Check the water inlet solenoid valve is open.
  • Page 91 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Symptom Probable reason Check items or handling methods Air suction and Reverse the compressor or inner air When the compressor was reversed, change exhausting pressure mixed up.
  • Page 92 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series the inverter output to stop the motor and make it stay free running condition. If there is alarm, the inverter will display alarm code, and will not cut off the inverter output during alarm state, the motor still be controlled by the inverter.
  • Page 93 All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Select a large power inverter. The inverter power is too small. Check the ambient temperature. Ambient temperature is too high. Inverter overheat error, the Improve the ventilation environment.

  • Page 94: Accessories

    All manuals and user guides at all-guides.com MCAC-PDSM M-2013-04 Midea a Precision AC Technical Ma anual-Down D elivery Series 9. Acces ssories Indoor unit Name Quantity Shape User’s m manual of ind oor unit Installatio frame water leakage sensor Switch p...

  • Page 95: Annex I: Alarm Table

    All manuals and user guides at all-guides.com Midea Precision AC Technical Manual MCAC-PDSM-2013-01 Annex I: Alarm table Alarm display Result Probable reason 10s after the low pressure switch is Low pressure compressor 1 Switch off the compressor 1. trigged. 10s after the airflow switch from close to...
  • Page 96 All manuals and user guides at all-guides.com MCAC-PDSM-2013-04 Midea Precision AC Technical Manual-Down Delivery Series Actual current of humidifier is 130% higher than standard current for long Built-in humidifier: high current Switch off humidifier time. After water inlet valve is opened,...

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