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Manual Heat Controller VMH24SC-1

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  • Heat Controller VMH24SC-1 - page 1

    Heat Controller , Inc. • 1900 Wellworth A ve. • Jackson, MI 49203 • (517)787-2100 • www .heatcontroller .com SER VICE MANU AL Inverter Single Zone Ductless Mini Split Heat Pump VMH Series V ersion C VMH09SC-1 VMH12SC-1 VMH18SC-1 VMH24SC-1 ...

  • Heat Controller VMH24SC-1 - page 2

    2 Service Manual VMH SerieS Heat Controller , Inc. CONTENTS 1.Safety Precautions ............................................................................................................................. 3 2. Functions ................................................................................................................................ ...

  • Heat Controller VMH24SC-1 - page 3

    3 Heat Controller , Inc. VMH SerieS Ser vice Manual 2 1. Precaution 1.1 Safety Pre caution  T o prev ent inj ury to the user or ot her pe ople a nd propert y damage, t he follo wing instruc tio ns must be follo wed.  Incor rect operatio n due to i gnoring instr uction wil l cause harm or damage.  Before ser vice u n i t, be sure to rea d t ...

  • Heat Controller VMH24SC-1 - page 4

    4 Service Manual VMH SerieS Heat Controller , Inc. 3 Sharp edg es could cause injury , be especially careful of the case edges and the fins o n the condenser a nd evaporator .  For installation, a l w ay s c ontact t he dealer . There is risk of fire, electr ic shock, ex plosion, or injury .  Do not inst all the pr oduct on a d efective i nst ...

  • Heat Controller VMH24SC-1 - page 5

    5 Heat Controller , Inc. VMH SerieS Ser vice Manual 4 Do not use the t elephone or turn switches on or of f. There is risk of ex plosion or fire.  If st range sounds , or sm all or smoke c omes f rom product . T urn the br eaker off or disconnect the power supply cable. There is risk o f electric shoc k or f i r e.  St op operati on and clos ...

  • Heat Controller VMH24SC-1 - page 6

    6 Service Manual VMH SerieS Heat Controller , Inc. 5  Keep lev el even when inst alling the pr oduct. T o avoid vibration o f water leakage .  Use t w o or more pe ople t o lif t and trans port the pro duct. Av oid personal injury .  Do not ins tall the pro duct where it will be expos ed to sea wind (salt spr ay) directly . It may cause co ...

  • Heat Controller VMH24SC-1 - page 7

    7 Heat Controller , Inc. VMH SerieS Ser vice Manual 6 A dirty filter red uces the ef ficiency of the a ir conditioner and could cau se product malfun ction or damage.  Do not inse rt ha nds or o ther object thro ugh air inlet or outle t whil e the prod uct is operated. There are shar p and moving par ts that coul d cause person al injury .  D ...

  • Heat Controller VMH24SC-1 - page 8

    8 Service Manual VMH SerieS Heat Controller , Inc. 7 2. Funct ion W h en the po w er supply is interrupted and then res tored, the unit autom atically restarts at the previous f unction sett i ng. Maintains th e room tem perature according to the set tem perature The m ode can be change by the room temperatur e The lou v er can be set at th e desir ...

  • Heat Controller VMH24SC-1 - page 9

    9 Heat Controller , Inc. VMH SerieS Ser vice Manual 8 Protect s the valv es and pr event s water from drippin g . 3 minute time de lay between ON/OFF oper ation. Out door unit Compressor delay Hydroph ilic aluminum fin Energized i n the heating mode except when in defr ost. Ant i - rust cabinet V alve protecti on cover 4 way v al v e con t rol Made ...

  • Heat Controller VMH24SC-1 - page 10

    10 Service Manual VMH SerieS Heat Controller , Inc. 9 3. Dimension 3.1 Indoor Unit Model Dimens ion (m m) W H D B- VMH09SC B- VMH12SC 845 (33.3in) 286 (11.3in) 165 (6.5in) B- VMH18SC B- VMH24SC 1080 (42.5in) 320 (12.6in) 200 (7.9in) ...

  • Heat Controller VMH24SC-1 - page 11

    11 Heat Controller , Inc. VMH SerieS Ser vice Manual 10 3.2 Outdoor Unit Mode l Dimension (mm) W D H W1 A B A- VMH 09SC 760 (29.9in) 285 (1 1.2in) 590 (23.2in) 823 (32.4in) 530 (20.9in) 290 (1 1.4in) A- VMH 12SC A- VMH 18SC 845 (33.3in) 335 (13.2in) 695 (27.4in) 918 (36.1in) 560 (22.0in) 335 (13.2in) A- VMH 24SC 895 (35.2in) 330 (13.0in) 860 (33.9i ...

  • Heat Controller VMH24SC-1 - page 12

    12 Service Manual VMH SerieS Heat Controller , Inc. 11 4. Ref rigeran t Cy cle Dia gram : INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE (EVAPORATOR) HEAT EXCHANGE (CONDENSER) COMPRESSOR 2-WAY VALVE 3-WAY VALVE CHECK VALVE (Heating Model only) CAPILIARY TUBE REVERSING VALVE (Heating Model only) COOLING HEATING ACCUMULATOR ...

  • Heat Controller VMH24SC-1 - page 13

    13 Heat Controller , Inc. VMH SerieS Ser vice Manual 12 5. W iring Diagram s: 5.1 Indoor Unit s B- VMH09SC - 1 B - VM H12SC -1 B- VMH18SC - 1 B - VM H24SC -1 ...

  • Heat Controller VMH24SC-1 - page 14

    14 Service Manual VMH SerieS Heat Controller , Inc. 13 5.2 Outdoor Unit A- VMH09SC - 1 A - V M H12SC -1 A- VMH18S C -1 ...

  • Heat Controller VMH24SC-1 - page 15

    15 Heat Controller , Inc. VMH SerieS Ser vice Manual 14 A- VMH24SC -1 6. Inst allat ion deta ils : 6. 1 Power Wiring • Consult local building codes, NEC (National Elect rical Code) or CEC (Canadian Electrical Code) for special r e quirements. Connection Cable: V oltage drop on the connecting cable should be kept to a m inim um . The operating vol ...

  • Heat Controller VMH24SC-1 - page 16

    16 Service Manual VMH SerieS Heat Controller , Inc. 15 6. 2 Pipe length and the elevation : 1. Single Zone “V” Series Inverter S ystem: Capacity Pipe S ize S tandard Max T otal Additio nal Btu/h Gas L iquid Lengt h Elevation Line Length (ft) R e f rigera n t (in) (in) (f t) (ft) Min. Max. oz /ft 9k 3/8 1/4 *16.5 26 10 65.5 .2 12k 1/2 1/4 *16.5 ...

  • Heat Controller VMH24SC-1 - page 17

    17 Heat Controller , Inc. VMH SerieS Ser vice Manual 16 6.3 Press ure T est & Evacu ation Air and moist ure in the refrigera nt syst em have undesira ble effect s as below: ● Pressure in the sy stem rises. ● Operatin g current ris es. ● Cooling or he ating ef ficiency drops. ● Moisture in the refrig erant circ uit may f r eeze and blo c ...

  • Heat Controller VMH24SC-1 - page 18

    18 Service Manual VMH SerieS Heat Controller , Inc. 17 2. Deep V acuum Method The de ep vacuu m method requires a vacuu m p ump capable of p ulling a vacuum of 500 m icrons and a vacuu m of 500 microns a nd vacuu m gage cap able of accurate ly measuri ng the vacuu m de pth. The deep vacu um method i s t he most positive way of assuring a sy stem is ...

  • Heat Controller VMH24SC-1 - page 19

    19 Heat Controller , Inc. VMH SerieS Ser vice Manual 18 8. Ele ctronic function 8.1 Abbreviation T1: Indoor room temp eratur e T2: Coil temperat ure of evaporat or T3: Coil temperat ure of condenser T4: O utdoor ambient temperat ure T5: C om pressor dis charge temperatur e TS: Preset t emperature. 8.2 Displa y function 8.2.1 Icon exp lanation on in ...

  • Heat Controller VMH24SC-1 - page 20

    20 Service Manual VMH SerieS Heat Controller , Inc. 19 8.3 Main Protection 8.3.1 Three Minut e Tim e Delay at rest art for compress o r . 1 minute del ay for 1 st ti me s tart - up and 3 minute del ay for others. 8.3.2 T emper ature prote ction o f compr essor top . Protector cuts off comp ressor for 30 s econds and res tar ts aft er 3 minute delay ...

  • Heat Controller VMH24SC-1 - page 21

    21 Heat Controller , Inc. VMH SerieS Ser vice Manual 20 Preheat mode: • With the co mpressor of f , a smal l amou nt of curre nt flows thr ough the windi ngs of the co mpressor hea ting the cr ankcas e. Pre heat termination : • If T4 ＞ 41 °F /5 °C or user t urns on the mac hi n e and compressor runs , preheat ing function w ill stop. • Cr ...

  • Heat Controller VMH24SC-1 - page 22

    22 Service Manual VMH SerieS Heat Controller , Inc. 21 8.4.2 Cooling M od e 8.4.2. 1 Compress or running r ules: The operati ng frequ ency of compr essor after st arting sub mits to following ru l e. If users switc h on A/C by remote contr oller , the compr essor will ru n at the Fmax frequen cy for 7 minutes accordin g to out door a m bient temp. ...

  • Heat Controller VMH24SC-1 - page 23

    23 Heat Controller , Inc. VMH SerieS Ser vice Manual 22 No te: W hen T1 - Ts sta ys in the same te m p. zone for 3 min utes, the compres sor will r un as fo llows : A~E: Inc rease s the frequenc y to lev el F8. F: Maint ai n s the current freque ncy . G: Decreas e s the frequ e ncy t o the lower level F1. H: Ru n s at F1 for 1h.(if T1 - Ts < 28? ...

  • Heat Controller VMH24SC-1 - page 24

    24 Service Manual VMH SerieS Heat Controller , Inc. 23 8.4.2 .2 Out door fan rules: Ou td oor fan and co m pr essor star t at the sam e time, out door fan stop s 30s aft er the compres sor stops . The out door fan has two speed s, and is contr olled by T4 a s f ollows : 8.4.2. 3 Indoor fan r unning ru les In cooling mod e, indoor fa n runs all the ...

  • Heat Controller VMH24SC-1 - page 25

    25 Heat Controller , Inc. VMH SerieS Ser vice Manual 24 8.4.2.5 Ev ap or ator low temper ature T2 protecti on. W hen T2< 32°F/0°C, t he compress or will stop an d restart when T2> 41°F/5°C. When 32°F/ 0°C≤ T 2< 39°F/ 4°C , the compress or freq uen cy is limited and decrea se s to the lower lev el every minute unt il stop the co m ...

  • Heat Controller VMH24SC-1 - page 26

    26 Service Manual VMH SerieS Heat Controller , Inc. 25 After A/C st arts u p, the compressor will run at the Fmax frequenc y for 7 minut es according to out door ambient t emp. During t he 7 minute s, frequency limit ation is active. 7 minutes later , compre ssor runni ng f r equency will b e controlle d as below: W hile T emp. zone A B C D E F G F ...

  • Heat Controller VMH24SC-1 - page 27

    27 Heat Controller , Inc. VMH SerieS Ser vice Manual 26 Meanwh ile, the co mpress or running fr equency is limited by the current. If the curre nt increases more than I 2 H E AT , the frequ ency will decreas e automatically , if the current rais es to over I 3 H E AT ,, the co mpressor will stop and rest art 3m in later . During the frequency decre ...

  • Heat Controller VMH24SC-1 - page 28

    28 Service Manual VMH SerieS Heat Controller , Inc. 27 8.4.3 .3 Indoor f an rule s: The indoor fa n speed can be selected a s high, medium, l ow and auto, the anti -cold- wind f un ction has the prior it y. If set temper ature is reac hed, the indoor f an switche s to lowest speed, the anti - cold wind funct ion has prior it y. If operation m o de ...

  • Heat Controller VMH24SC-1 - page 29

    29 Heat Controller , Inc. VMH SerieS Ser vice Manual 28 Auto fan act i on i n heating mode. 8.4.3 .4 D e fros t mode ： Condition s of d ef r ost : When the unit is r unning, if any one of the following conditio ns is satis fied, the unit star ts de frost : 1 .Defrost is av ailable afte r 40 minutes of run time i f T3 (Cond enser coil temper ature ...

  • Heat Controller VMH24SC-1 - page 30

    30 Service Manual VMH SerieS Heat Controller , Inc. 29 Defrost Action s: For 9K and 12 K unit For 18K and 2 4K unit ...

  • Heat Controller VMH24SC-1 - page 31

    31 Heat Controller , Inc. VMH SerieS Ser vice Manual 30 8.4.3.5 Hig h evaporator coil temp.T2 p rotection: (1) T2>TEH2 compress or runni ng frequenc y decre ases to the lower lev el ev ery 20s. If the frequenc y decreased t o F2 and the T2 still over TEH2 for 3 min utes, the compressor will st op. If T2 deceased t o lower than 1 18°F/48° C, or ...

  • Heat Controller VMH24SC-1 - page 32

    32 Service Manual VMH SerieS Heat Controller , Inc. 31 8.4.5 De humidify mode 8.4.5.1 I ndoor fan speed is fixed in breeze and c an’t be changed. The louver angl e is the same as i n cooling mode. 8.4.5.2 Co mpressor running rule s 8.4.5 .3 Room low temper ature protect ion If ro om temperatur e is lower than 50° F/10° C, compressor wi ll stop ...

  • Heat Controller VMH24SC-1 - page 33

    33 Heat Controller , Inc. VMH SerieS Ser vice Manual 32 8.4.6.2 I n forced operat ion mode, all general pr otections and re m ot e control functi ons are avai lable. 8.4.6.3 O peration rul es: Forced cooling mod e: The compres sor runs at F2 frequency and indoor fa n runs as breez e. After ru nning for 30 m in utes. the machine wi l l tur n to auto ...

  • Heat Controller VMH24SC-1 - page 34

    34 Service Manual VMH SerieS Heat Controller , Inc. 33 8.4.8.3 Ti m er s etting is availab le 8.4.8.4 W hen user use s timer off functio n i n sle ep mode (or sleep func tion in timer of f mode), if the timin g i s less than 7 hour s, sleep function w ill be cance lled when the set t ime reached. If the t iming is more t han 7 hours, the m ac hi n ...

  • Heat Controller VMH24SC-1 - page 35

    35 Heat Controller , Inc. VMH SerieS Ser vice Manual 34 8.4.1 1 .2 After the A/C is turned on, the C lean Air function is sw i t ched on whe n the A/C receives F RESH CODE the fi r st time, an d ionizer is switched o ff when t he A/C receives the CO D E a gain . 8.4.1 1.3 After star ting the Cle an Air function, the ionizer will w ork only when the ...

  • Heat Controller VMH24SC-1 - page 36

    36 Service Manual VMH SerieS Heat Controller , Inc. 35 9. Troubl eshooting 9.1 Indoor Unit Error Displa y Disp lay LED ST A TU S E0 EEP R O M param eter error E1 Indoor / outdo or units co mmunicat ion protect ion E2 Zero - crossi ng signal err or E3 Indoor fan sp eed out of control E5 Open or short cir cuit of out door temperatur e sensor E6 Open ...

  • Heat Controller VMH24SC-1 - page 37

    37 Heat Controller , Inc. VMH SerieS Ser vice Manual 36 9 .2.2 Ind oor uni t and out door uni t com muni cation prote ction err or dia gnosis and s olution No Ye s Ye s No Ye s Check the wir ing betwe en indoor and out door unit. Is the conn ection of L, N, S and GN D good? No Is the LED4(r ed) bright and LED1(y ellow) blinking o n outd oor PCB? Pr ...

  • Heat Controller VMH24SC-1 - page 38

    38 Service Manual VMH SerieS Heat Controller , Inc. 37 9 .2. 3 Zero cros sing chec k resista nce or inverter com pressor , it i s .7 Ω error Al arm signa l when the main chip ca n’t detect over - z ero signa l. W h en such failure occurs, the ma in control board must have fault. Is the fan motor conne ctor and connectio n good? Tu rn o ff the u ...

  • Heat Controller VMH24SC-1 - page 39

    39 Heat Controller , Inc. VMH SerieS Ser vice Manual 38 9 .2.5 Open or short circuit of te mperatu re sens or diagnosi s and soluti on 9 .2.6 IGBT over curr ent prote ction diag nosis and sol ution Y es Re place the outdoor or indoor PC B Y es Check the co nnections bet ween the sensors and the PCB. Are the connecti o ns good? Replace the s ensor a ...

  • Heat Controller VMH24SC-1 - page 40

    40 Service Manual VMH SerieS Heat Controller , Inc. 39 9 .2.7 Over volt age or too low vol tage pr otectio n diag nosis a nd solut ion 9 .2.8 High temperature prote ction of co mpressor top diagn osis an d soluti on Y es Y es No, Charge re f rig erant Is the abnor m a l ity the same after ga s charging? Replace the out door PCB. No Y es Is over loa ...

  • Heat Controller VMH24SC-1 - page 41

    41 Heat Controller , Inc. VMH SerieS Ser vice Manual 40 9.29 P3 ERROR – Low A mbient Prot ecti on If the out door tem perature remains at 5°F ( - 15°C) for an hour , the co mpressor will turn of f and the error code “P3” w ill be display ed on the indoor unit . Once the compress or has been of f for at least an h our and the temperat ure ou ...

  • Heat Controller VMH24SC-1 - page 42

    42 Service Manual VMH SerieS Heat Controller , Inc. 41 Key p art s checking . 8.3.1. Com pressor che cking (M odel: DA108 X 1 C-20FZ3) Meas ure th e resist ance value of each wi nding by using the multi- meter . Ste p Motor (Model: MP283 5T ) Meas ure the resistance v alue of each winding by using the multi- met er . Position Re sistance Va l u e B ...

  • Heat Controller VMH24SC-1 - page 43

    43 Heat Controller , Inc. VMH SerieS Ser vice Manual 42 8.3.1. Com pressor che cking (M odel: DA150S 1C - 20FZ) Meas ure the resistance v alue of each winding by usi ng the multi - m eter . Outdoor F an Motor (Model : YD K53 - 6 FB ) Meas ure the resistance v alue of each winding by usi ng the multi - m eter . Outdoor F an Motor (Model : YD K53 - 6 ...

  • Heat Controller VMH24SC-1 - page 44

    44 Service Manual VMH SerieS Heat Controller , Inc. 43 T emperature Sensors. Room temp.(T1) sensor , I ndoor coil tem p.(T2) sensor , Outdoor coil tem p. ( T3) sensor , Outdoor ambi ent temp.( T4) sensor , Compressor exhau st temp.(T e) sensor . Meas ure the resistance v alue of each winding by usi ng the multi - m eter . Some fr equently- used R- ...

  • Heat Controller VMH24SC-1 - page 45

    45 Heat Controller , Inc. VMH SerieS Ser vice Manual 04/2009 3-2012 ...

Manufacturer Heat Controller Category Heat Pump

Documents that we receive from a manufacturer of a Heat Controller VMH24SC-1 can be divided into several groups. They are, among others:
- Heat Controller technical drawings
- VMH24SC-1 manuals
- Heat Controller product data sheets
- information booklets
- or energy labels Heat Controller VMH24SC-1
All of them are important, but the most important information from the point of view of use of the device are in the user manual Heat Controller VMH24SC-1.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Heat Controller VMH24SC-1, service manual, brief instructions and user manuals Heat Controller VMH24SC-1. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Heat Controller VMH24SC-1.

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A complete manual for the device Heat Controller VMH24SC-1, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Heat Controller VMH24SC-1 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Heat Controller VMH24SC-1.

A complete Heat Controller manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Heat Controller VMH24SC-1 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Heat Controller VMH24SC-1, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Heat Controller VMH24SC-1, that we can find in the current document
3. Tips how to use the basic functions of the device Heat Controller VMH24SC-1 - which should help us in our first steps of using Heat Controller VMH24SC-1
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Heat Controller VMH24SC-1
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Heat Controller VMH24SC-1 in a specific country, if it was not possible to solve the problem on our own.

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