Mars Comfort-aire Century A-VFH30QB-1 Service Manual Download

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Service Manual

VFH-B Series

Inverter Multi Zone Ductless Mini-Split

A-VFH30QB-1
A-VFH36QB-1

A-VFH42PB-1

www.marsdelivers.com

Summary of Contents for Comfort-aire Century A-VFH30QB-1

Page 1: ...Service Manual VFH B Series Inverter Multi Zone Ductless Mini Split A VFH30QB 1 A VFH36QB 1 A VFH42PB 1 www marsdelivers com...

Page 2: ......

Page 3: ...d Control 17 Part Installation and Maintenance 19 7 Safety Precautions 19 8 Installation Manual 21 3UHSDUDWLRQ EHIRUH QVWDOODWLRQ 22 QVWDOODWLRQ QVWUXFWLRQ 24 9 Troubleshooting 29 0DOIXQFWLRQ QGLFDWRU...

Page 4: ...Service Manual VFH B 30 36 42 Series 4 1 Summary Part Technical Information Outdoor Unit 9 4 9 4 9 4...

Page 5: ...17 7KURWWOLQJ 0HWKRG OHFWURQ H SDQVLRQ YDOYH RROLQJ 2SHUDWLRQ PELHQW 7HPSHUDWXUH 5DQJH O 0 118 HDWLQJ 2SHUDWLRQ PELHQW 7HPSHUDWXUH 5DQJH O 4 86 RQGHQVHU 0DWHULDO OXPLQXP LQ FRSSHU 7XEH RQGHQVHU 3LSH...

Page 6: ...HU LDPHWHU RI LTXLG 3LSH LQFK 1 4 2XWHU LDPHWHU RI DV 3LSH LQFK 3 8 2XWHU LDPHWHU RI DV 3LSH LQFK 3 8 2XWHU LDPHWHU RI DV 3LSH LQFK 3 8 2XWHU LDPHWHU RI DV 3LSH LQFK 3 8 RQQHFWLRQ 3LSH 0D HLJKW LVWDQF...

Page 7: ...7 7KURWWOLQJ 0HWKRG OHFWURQ H SDQVLRQ YDOYH OHFWURQ H SDQVLRQ YDOYH RROLQJ 2SHUDWLRQ PELHQW 7HPSHUDWXUH 5DQJH O 0 118 0 118 HDWLQJ 2SHUDWLRQ PELHQW 7HPSHUDWXUH 5DQJH O 4 86 4 86 RQGHQVHU 0DWHULDO OXPL...

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Page 9: ...LW 6400 6380 7950 8550 10650 11080 7RWDO SRZHU LQSXW 3150 2500 3130 3200 3400 2930 6HQVLWLYH FDSDFLW 7RWDO FDSDFLW 100 100 100 100 100 100 RROLQJ HDWOLQJ 2 2 Cooling Capacity Tables 5220 02 211 7 9 1...

Page 10: ...DSDFLW 8460 8800 9360 10690 10580 11300 7RWDO SRZHU LQSXW 3785 3600 3410 3580 2780 2420 6HQVLWLYH FDSDFLW 7RWDO FDSDFLW 100 100 100 100 100 100 RROLQJ HDWOLQJ 5220 02 211 7 9 1 225 81 7 7 1 287 225 7...

Page 11: ...00 10820 11400 6HQVLWLYH FDSDFLW 8230 8960 8750 12100 10820 11400 7RWDO SRZHU LQSXW 3760 3690 3400 3910 2820 2420 6HQVLWLYH FDSDFLW 7RWDO FDSDFLW 100 0 100 0 100 0 100 0 100 0 100 0 5220 02 211 7 9 1...

Page 12: ...l VFH B 30 36 42 Series 12 A VFH36QB 1 A VFH42PB 1 A VFH30QB 1 8QLW LQFK 40 42 1 2 24 13 16 17 21 64 14 1 4 14 51 64 43 27 64 38 27 64 36 7 32 17 21 64 14 37 64 31 24 1523 32 8QLW LQFK 3 Outline Dimen...

Page 13: ...go to the heat exchanger of the outdoor unit to exchange heat with the outdoor air and then is turned into refrigerant liquid After passing through the throttling device the temperature and pressure o...

Page 14: ...2 1 7 03 6 1625 287 7 3 3 27720 1 7 5 9 9 92 3527 7 121 2035 6625 29 5 2 1 7 3 3 7 03 6 1625 1 02725 6 7 35 6685 2035 6625 287 225 78 6 1625 7 03 6 1625 287 225 0 1 7 5 1 0 1 2 5 7 03 6 1625 6 5 3 16...

Page 15: ...7521 81 7 1 225 5 725 1 7 5 2035 6625 1 57 57 57 57 57 57 1 57 57 57 57 57 57 57 57 6 7 9 9 7 7 7 7 7 1 1 1 1 1 1 7 57 57 57 57 7 7 9 9 3 57 9 9 9 9 1 8 8 1 8 1 8 1 8 1 8 1 1 8 5 2 1 2 2 5 8 5 8 5 1...

Page 16: ...RYHUORDG SURWHFWRU 7 33 WHUPLQDOV RI KLJK SUHVVXUH VZLWFK 8 9 9 WHUPLQDOV RI 9 HOHFWURQLF H SDQVLRQ YDOYH 9 1 1 WHUPLQDOV RI WHPSHUDWXUH VHQVRU 10 208 WHUPLQDOV RI FRPPXQLFDWLRQ 11 2 1 WHUPLQDOV RI ID...

Page 17: ...RU XQLWV VDWLVI WKH VWRS FRQGLWLRQ WKH FRPSUHVVRU VWRSV DQG WKH RXWGRRU IDQ VWRSV DIWHU PLQ F I RQO SDUW RI WKH LQGRRU XQLWV VDWLVI WKH VWRS FRQGLWLRQ WKH FRPSUHVVRU GHFUHDVH WKH IUHTXHQF LPPHGLDWHO D...

Page 18: ...HP SUHVVXUH KLJKHU WKDQ OLPLW WKHQ WKH KLJK SUHVVXUH VZLWFK FXWV RII WKH V VWHP ZLOO VWRS E I KLJK SUHVVXUH SURWHFWLRQ LV GHWHFWHG system power must be manually turned off and back on In this case onl...

Page 19: ...DWLRQ PLJKW OHDG WR KXPDQ FDVXDOW RU VHYHU LQMXU WHPV QHHG WR EH IROORZHG W LQGLFDWHV WKDW LPSURSHU RSHUDWLRQ PLJKW OHDG WR SHUVRQDO LQMXU RU SURSHUW GDPDJH 7 Safety Precautions Installation should be...

Page 20: ...ape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 Torqu...

Page 21: ...he bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installation Note this...

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Page 23: ...ss of pipe 0 5 1 0 mm bearing pressure 3 0MPa The longer the connection pipe is the more cooling and heating capacity will decrease 19 2 3 39 3 8 78 3 4 19 2 3 19 2 3 19 2 3 78 3 4 unit inch M odel Co...

Page 24: ...tdoor unit 9 4 2XWOLQH GLPHQVLRQ DQG 0RXQWLQJ KROHV 9 64 9 3 2XWOLQH GLPHQVLRQ DQG 0RXQWLQJ KROHV 31 13 25 32 3 21 64 14 39 64 15 23 32 16 51 64 11 3 4 24 38 27 64 6 7 64 43 27 64 17 23 32 3 37 64 11...

Page 25: ...WKH MRLQWV with insulation provided WKHQ WLJKWHQ WKHP ZLWK WKH SODVWLF WDSH CAUTION During the connection of the indoor unit and the refrigerant pipe never pull any joints of the indoor unit by force...

Page 26: ...A VFH36QB 1 A VFH36QB 1 131 2ft 131 2ft Allowable Value Fitting pipe Total length actual length of fitting pipe all indoor units length of farthest fitting pipe ft A VFH30QB 1 A VFH36QB 1 A VFH42QB 1...

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Page 28: ...PDQXDO If damaged WKH SRZHU FRUG VKRXOG EH UHSODFHG with a comparable cord 7KH grounding VKRXOG EH UHOLDEOH DQG WKH ground ZLUH VKRXOG EH FRQQHFWHG WR a GHGLFDWHG GHYLFH RI WKH EXLOGLQJ E WKH WHFKQLFL...

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Page 31: ...y N N N Connected correctly Reconnect according to the wiring diagram Y N Y De energize change the communication wire of the well communicated indoor unit and malfunction indoor unit then energize the...

Page 32: ...rectly Connected correctly Reconnect according to the wiring diagram Connected correctly Reconnect according to the wiring diagram De energize check if the connection wire between the outdoor mainboar...

Page 33: ...e outdoor unit mainboard Replace pressure switch Check if operation mode of indoor unit is properly set N N Y Y Y Y Check if gas valve and liquid valve are completely open Refer to Instruction Manual...

Page 34: ...vant discharge temperature sensor Discharge temperature protection Malfunction display E5 Compressor Overheat N Y Y Y Y Y N N N Check if compressor s connection line is properly connected Adjust compr...

Page 35: ...ck if the plug of the temperature sensor is correctly connected with socket on the mainboard N Removethe sensor to check if the resistance value is ok N Y Y Y Check the direction of the plug and socke...

Page 36: ...nce value is ok Replace mainboard of the indoor uint Replace temperature sensor Check the direction of the plug and socket Malfunction display F5 Failure of Exhaust Temp Sensor N N Y Y Y Failure of Ex...

Page 37: ...0DOIXQFWLRQ RI FRPSUHVVRU RPSUHVVRU FDQ W RSHUDWH 5HIHU WR SRLQW RI PDLQWHQDQFH PHWKRG IRU GHWDLOV 9 3 Maintenance Method for Normal Malfunction 1 Air Conditioner Can t be Started Up 2 Poor Cooling He...

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Page 39: ...3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 10 Exploded View and Parts List 7KH FRPSRQHQW SLFWXUH...

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Page 56: ...DLQ DFFRUGLQJ WR WKH VWHSV DERYH The length is equal Improper expanding leaning damaged surface crack uneven thickness Smooth surface Expander Hard mold Pipe LV GLIIHUHQW DFFRUGLQJ WR WKH GLDPHWHU SOH...

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