Instruction/ maintenance manual of the product VMH09SC-1 Heat Controller
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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 er.
2 Service Manual VMH SerieS Heat Controller , Inc. CONTENTS 1.Safety Precautions ............................................................................................................................. 3 2. Functions .............................
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.
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 .
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.
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 .
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.
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.
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.
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.
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.
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 VALV.
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.
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.
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 .
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.
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.
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.
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.
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 .
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.
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.
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 .
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.
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.
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.
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 .
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.
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 .
30 Service Manual VMH SerieS Heat Controller , Inc. 29 Defrost Action s: For 9K and 12 K unit For 18K and 2 4K unit.
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.
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.
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.
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.
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 .
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 io.
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.
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.
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.
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.
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 .
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 .
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 .
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 .
45 Heat Controller , Inc. VMH SerieS Ser vice Manual 04/2009 3-2012.
An important point after buying a device Heat Controller VMH09SC-1 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Heat Controller VMH09SC-1 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Heat Controller VMH09SC-1 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Heat Controller VMH09SC-1 you will learn all the available features of the product, as well as information on its operation. The information that you get Heat Controller VMH09SC-1 will certainly help you make a decision on the purchase.
If you already are a holder of Heat Controller VMH09SC-1, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Heat Controller VMH09SC-1.
However, one of the most important roles played by the user manual is to help in solving problems with Heat Controller VMH09SC-1. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Heat Controller VMH09SC-1 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
