Comfortaire A-VFH36QB-1 User manual

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

Service Manual - VFH-B 30/36/42 Series
3
Table of Contents
Part Ė: Technical Information.......................................................................4
1. Summary......................................................................................................................4
6SHFL¿FDWLRQV..........................................................................................................5
6SHFL¿FDWLRQ6KHHW................................................................................................................5
&RROLQJ&DSDFLW\7DEOHV ........................................................................................................9
3.
Outline Dimension Diagram........................................................................12
4. Refrigerant System Diagram......................................................................13
5.
Electrical Part...........................................................................................................14
:LULQJ'LDJUDP....................................................................................................................14
3&%3ULQWHG'LDJUDP ..........................................................................................................16
6.
Function and Control........................................................................................17
Part ė: Installation and Maintenance .................................................19
7.
Safety Precautions.............................................................................................19
8.
Installation Manual.............................................................................................21
3UHSDUDWLRQEHIRUH,QVWDOODWLRQ.............................................................................................22
,QVWDOODWLRQ,QVWUXFWLRQ..........................................................................................................24
9.
Troubleshooting ...................................................................................................29
0DOIXQFWLRQ,QGLFDWRU ..........................................................................................................30
0DOIXQFWLRQ&KHFNLQJDQG(OLPLQDWLRQ.................................................................................31
0DLQWHQDQFH0HWKRGIRU1RUPDO0DOIXQFWLRQ......................................................................35
10.
Exploded View and Parts List
...............................................................39
11.
Removal Procedure........................................................................................43
Appendix:........................................................................................................................55
$SSHQGL[5HIHUHQFH6KHHWRI&HOVLXVDQG)DKUHQKHLW .........................................................55
$SSHQGL[3LSHH[SDQGLQJPHWKRG.........................................................................................55
$SSHQGL[/LVWRI5HVLVWDQFHIRU7HPSHUDWXUH6HQVRU ...........................................................57

Service Manual - VFH-B 30/36/42 Series
4
1. Summary
Part Ė: Technical Information
Outdoor Unit
$9)+4%
$9)+4%
$9)+4%

Service Manual - VFH-B 30/36/42 Series
5
6SHFL¿FDWLRQV
0RGHO $9)+4%
3URGXFW&RGH &%:B/
3RZHU
VXSSO\
5DWHG9ROWDJH V~ 208/230
5DWHG)UHTXHQF\ +] 60
3KDVHV 1
&RROLQJFDSDFLW\ %WXK 28500
+HDWLQJFDSDFLW\ %WXK 30000
&RROLQJ3RZHU,QSXW W 2280
+HDWLQJ3RZHU,QSXW W 2350
&RROLQJ&XUUHQW,QSXW A 9.91
+HDWLQJ&XUUHQW,QSXW A 10.22
5DWHG3RZHU,QSXW W 3800
5DWHG&XUUHQW A 16.86
((5 %WXK: 12.50
COP %WXK: 12.76
6((5 21.00
+63) 10.50
2XWGRRU
8QLW
&RPSUHVVRU7UDGHPDUN =+8+$,/$1'$&2035(6625&2/7'
&RPSUHVVRU0RGHO 4;$6'];$
&RPSUHVVRU5HIULJHUDQW2LO7\SH 5%(3
&RPSUHVVRU7\SH ,QYHUWHU5RWDU\
/5$ A 30
&RPSUHVVRU5DWHG/RDG$PS5/$ A 13.9
&RPSUHVVRU3RZHU,QSXW W 4150
&RPSUHVVRU7KHUPDO3URWHFWRU 17/²
7KURWWOLQJ0HWKRG (OHFWURQH[SDQVLRQYDOYH
&RROLQJ2SHUDWLRQ$PELHQW
7HPSHUDWXUH5DQJH
O)0~118
+HDWLQJ2SHUDWLRQ$PELHQW
7HPSHUDWXUH5DQJH
O)-4~86
&RQGHQVHU0DWHULDO $OXPLQXP)LQFRSSHU7XEH
&RQGHQVHU3LSH'LDPHWHU LQFK ĭ
5RZV)LQ*DSPP LQFK 2-1/16
&RLOOHQJWKO;KHLJKW+;FRLO
ZLGWK/ LQFK ;;
)DQ0RWRU6SHHGUSP+0/ USP 630
2XWSXWRI)DQ0RWRU W 60
)DQ0RWRU5/$
A/
)DQ0RWRU&DSDFLWRU ȝ) /
$LU)ORZ9ROXPHRI2XWGRRU8QLW &)0 2330
)DQ7\SH3LHFH $[LDOÀRZ
)DQ'LDPHWHU LQFK ĭ
'HIURVWLQJ0HWKRG $XWRPDWLF'HIURVWLQJ
&OLPDWH7\SH 7
,VRODWLRQ ,
0RLVWXUH3URWHFWLRQ ,3;
3HUPLVVLEOH([FHVVLYH2SHUDWLQJ
3UHVVXUHIRUWKH'LVFKDUJH6LGH 36,* 550
3HUPLVVLEOH([FHVVLYH2SHUDWLQJ
3UHVVXUHIRUWKH6XFWLRQ6LGH 36,* 240
'LPHQVLRQ:;+;' LQFK ;;
'LPHQVLRQRI3DFNDJH/;:;+ LQFK ;;
'LPHQVLRQRI3DFNDJH/;:;+ LQFK ;;
1HW:HLJKW OE 145.5
*URVV:HLJKW OE 154.4
HIULJHUDQW&KDUJH 5$
5HIULJHUDQW&KDUJH R] 98.8
6SHFL¿FDWLRQ6KHHW

Service Manual - VFH-B 30/36/42 Series
6
2XWGRRU
8QLW
&URVVVHFWLRQDO$UHDRI3RZHU&DEOH&RQGXFWRU VTLQ 0.0062
5HFRPPHQGHG3RZHU&DEOH&RUH 1 3
&RQQHFWLRQ3LSH&RQQHFWLRQ0HWKRG -)ODUH&RQQHFWLRQ
1RW$GGLWLRQDO*DV&RQQHFWLRQ3LSH/HQJWK IW 131.2
&RQQHFWLRQ3LSH*DV$GGLWLRQDO&KDUJH R]IW 0.2
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4
2XWHU'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'LVWDQFH LQGRRUDQG
LQGRRU IW 24.6
&RQQHFWLRQ3LSH0D[+HLJKW'LVWDQFH LQGRRUDQG
RXWGRRUDQGLQGRRUXS IW 49.2
&RQQHFWLRQ3LSH0D[+HLJKW'LVWDQFH
LQGRRUDQGRXWGRRUDQGRXWGRRUXS IW 49.2
0D[HTXLYDOHQWFRQQHFWLRQSLSHOHQJWK
RXWGRRUWRODVWLQGRRU IW 82.0
&RQQHFWLRQ3LSH0D[/HQJWK'LVWDQFH WRWDOOHQJtK IW 229.7
7KHDERYHGDWDLVVXEMHFWWRFKDQJHZLWKRXWQRWLFHSOHDVHUHIHUWRWKHQDPHSODWHRIWKHXQLW

Service Manual - VFH-B 30/36/42 Series
7
0RGHO $9)+4% $9)+3%
3URGXFW&RGH &%:B/ &1:B/
3RZHU
VXSSO\
5DWHG9ROWDJH V~ 208/230 208/230
5DWHG)UHTXHQF\ +] 60 60
3KDVHV
11
&RROLQJFDSDFLW\ %WXK 34000 36000
+HDWLQJFDSDFLW\ %WXK 42500 43000
&RROLQJ3RZHU,QSXW W 2800 3740
+HDWLQJ3RZHU,QSXW W 3350 3650
&RROLQJ&XUUHQW,QSXW A 12.5 16.5
+HDWLQJ&XUUHQW,QSXW A1
51
6
5DWHG3RZHU,QSXW W 3800 4000
5DWHG&XUUHQW A3
03
0
((5 %WXK: 12.14 9.63
COP %WXK: 12.69 11.78
6((5 21.00 21.00
+63) 10.20 10.20
2XWGRRU
8QLW
&RPSUHVVRU7UDGHPDUN =+8+$,/$1'$&2035(6625
&2/7'
=+8+$,/$1'$&2035(6625
&2/7'
&RPSUHVVRU0RGHO 4;$6'];$ 4;$6'];$
&RPSUHVVRU5HIULJHUDQW2LO7\SH 5%(3
&RPSUHVVRU7\SH ,QYHUWHU5RWDU\ ,QYHUWHU5RWDU\
/5$ A3
03
0
&RPSUHVVRU5DWHG/RDG$PS5/$ A 15.6 17.8
&RPSUHVVRU3RZHU,QSXW W 4150 4150
&RPSUHVVRU7KHUPDO3URWHFWRU 17/² 17/²
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 $OXPLQXP)LQFRSSHU7XEH $OXPLQXP)LQFRSSHU7XEH
&RQGHQVHU3LSH'LDPHWHU LQFK ĭ ĭ
5RZV)LQ*DSPP LQFK 2-1/16 2-1/16
&RLOOHQJWKO;KHLJKW+;FRLOZLGWK/ LQFK ;; ;;
)DQ0RWRU6SHHGUSP+0/ USP 850 850
2XWSXWRI)DQ0RWRU W 140 140
)DQ0RWRU5/$ A/ /
)DQ0RWRU&DSDFLWRU ȝ)
//
$LU)ORZ9ROXPHRI2XWGRRU8QLW &)0 4531 4531
)DQ7\SH3LHFH $[LDOÀRZ $[LDOÀRZ
)DQ'LDPHWHU LQFK ĭ² ĭ²
'HIURVWLQJ0HWKRG $XWRPDWLF'HIURVWLQJ $XWRPDWLF'HIURVWLQJ
&OLPDWH7\SH 7 7
,VRODWLRQ , ,
0RLVWXUH3URWHFWLRQ ,3; ,3;
3HUPLVVLEOH([FHVVLYH2SHUDWLQJ3UHVVXUHIRU
WKH'LVFKDUJH6LGH 36,* 550 550
3HUPLVVLEOH([FHVVLYH2SHUDWLQJ3UHVVXUHIRU
WKH6XFWLRQ6LGH 36,* 240 240
'LPHQVLRQ:+' LQFK ;; ;;
'LPHQVLRQRI3DFNDJH/:+ LQFK ;; ;;
'LPHQVLRQRI3DFNDJH/:+ LQFK ;; ;;
1HW:HLJKW OE 198.5 198.5
*URVV:HLJKW OE 216.1 216.1
HIULJHUDQW&KDUJH 5$ 5$
5HIULJHUDQW&KDUJH R] 128.8 128.8

Service Manual - VFH-B 30/36/42 Series
8
2XWGRRU
8QLW
&URVVVHFWLRQDO$UHDRI3RZHU&DEOH&RQGXFWRU VTLQ 0.0062 0.0062
5HFRPPHQGHG3RZHU&DEOH&RUH 1
33
&RQQHFWLRQ3LSH&RQQHFWLRQ0HWKRG -)ODUH&RQQHFWLRQ )ODUH&RQQHFWLRQ
Factory charge good for: IW 131.2 131.2
&RQQHFWLRQ3LSH*DV$GGLWLRQDO&KDUJH R]IW 0.2 0.2
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4 1/4
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4 1/4
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4 1/4
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4 1/4
2XWHU'LDPHWHURI/LTXLG3LSH LQFK 1/4 1/4
2XWHU'LDPHWHURI*DV3LSH LQFK 3/8 3/8
2XWHU'LDPHWHURI*DV3LSH LQFK 3/8 3/8
2XWHU'LDPHWHURI*DV3LSH LQFK 3/8 3/8
2XWHU'LDPHWHURI*DV3LSH LQFK 3/8 3/8
2XWHU'LDPHWHURI*DV3LSH LQFK 3/8 3/8
&RQQHFWLRQ3LSH0D[+HLJKW'LVWDQFH LQGRRUDQG
LQGRRU IW 24.6 24.6
&RQQHFWLRQ3LSH0D[+HLJKW'LVWDQFH LQGRRUDQG
RXWGRRUDQGLQGRRUXS IW 49.2 49.2
0D[HTXLYDOHQWFRQQHFWLRQSLSHOHQJWK
RXWGRRUWRODVWLQGRRU IW 82.0 82.0
&RQQHFWLRQ3LSH0D[/HQJWK'LVWDQFH WRWDOOHQJtK IW 246.1 246.1
7KHDERYHGDWDLVVXEMHFWWRFKDQJHZLWKRXWQRWLFHSOHDVHUHIHUWRWKHQDPHSODWHRIWKHXQLW

Service Manual - VFH-B 30/36/42 Series
9
5220 M2'(/:30K
&211(&7,9(,1'225
81,7
*:+7%''1$$,î
*:+7%''1$$,î
287'2257(03(5$785('5<
,1'225
7(03(5$785(
-13.88OC(7O)'
-15OC(5O):
-8.33OC(17O)  ' 
-9.44OC(15O):
-2.22OC(28O)'
-3.89OC(25O):
3.33OC(38O)  ' 
1.67OC(35O):
8.33OC(47O)'
6.11OC(43O):
13.89OC(57O)'
12.7OC(55O):
15OC(59O)'
10OC(50O):
7RWDOFDSDFLW\: 6560 6580 8050 10880 11300 11800
6HQVLWLYHFDSDFLW\: 6560 6580 8050 10880 11300 11800
7RWDOSRZHULQSXW: 2820 2150 2750 2850 2950 2480
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
18OC(64O)'
12OC(54O):
7RWDOFDSDFLW\: 6400 6530 8200 9000 11050 11600
6HQVLWLYHFDSDFLW\: 6400 6530 8200 9000 11050 11600
7RWDOSRZHULQSXW: 2950 2280 2980 2950 3100 2630
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
21OC(70O)'
15OC(59O):
7RWDOFDSDFLW\: 6450 6450 7900 8850 10750 11450
6HQVLWLYHFDSDFLW\: 6450 6450 7900 8850 10750 11450
7RWDOSRZHULQSXW: 3100 2400 3080 3100 3220 2750
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
24OC(75O)'
17OC(63O):
7RWDOFDSDFLW\: 6400 6380 7950 8550 10650 11080
6HQVLWLYHFDSDFLW\: 6400 6380 7950 8550 10650 11080
7RWDOSRZHULQSXW: 3150 2500 3130 3200 3400 2930
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
&RROLQJ
+HDWOLQJ
2.2 Cooling Capacity Tables
5220 02'(/.
&211(&7,9(,1'22581,7
*:+7%''1$$,î
*:+7%''1$$,î
287'2257(03(5$785('5<
,1'225
7(03(5$785(
20OC
68O)
25OC
77O)
30OC
86O)
35OC
95O)
40OC
104O)
45OC
113O)
21OC(70O)'
15OC(59O):
7RWDOFDSDFLW\: 7186 8391 9044 8474 6697 5228
6HQVLWLYHFDSDFLW\: 6194 6818 7084 6779 6127 5175
7RWDOSRZHULQSXW: 1736 2108 2826 3099 2566 2172
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 85.3 81.2 78.3 79.9 91 98.9
24OC(75O)'
17OC(63O):
7RWDOFDSDFLW\: 8074 9106 9696 9149 7195 5631
6HQVLWLYHFDSDFLW\: 6950 7474 7659 7414 6703 5585
7RWDOSRZHULQSXW: 1760 2111 2853 3121 2583 2207
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 85.65 82 78.9 81 93.1 99.1
27OC(80O)'
19OC(67O):
7RWDOFDSDFLW\: 8884 9921 10310 9863 7635 7543
6HQVLWLYHFDSDFLW\: 7533 8027 9587 7665 7169 7359
7RWDOSRZHULQSXW: 2009 2365 2905 3206 2773 2835
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 84.55 80.9 92.9 76.9 93.8 97.5
32OC(90O)'
23OC(73O):
7RWDOFDSDFLW\: 9152 10953 11606 10847 8300 6389
6HQVLWLYHFDSDFLW\: 8558 8374 8584 8359 7377 6268
7RWDOSRZHULQSXW: 2025 2402 2955 3267 2668 2244
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 93.5 76.4 80.9 77 88.8 98

Service Manual - VFH-B 30/36/42 Series
10
5220 02'(/.
&211(&7,9(,1'225
81,7
*:+7%''1$$,î
287'2257(03(5$785('5<
,1'225
7(03(5$785(
-13.88OC(7O)'
-15OC(5O):
-8.33OC(17O)  ' 
-9.44OC(15O):
-2.22OC(28O)'
-3.89OC(25O):
3.33OC(38O)  ' 
1.67OC(35O):
8.33OC(47O)'
6.11OC(43O):
13.89OC(57O)'
12.7OC(55O):
15OC(59O)'
10OC(50O):
7RWDOFDSDFLW\: 7480 8880 9720 12050 11400 12000
6HQVLWLYHFDSDFLW\: 7480 8880 9720 12050 11400 12000
7RWDOSRZHULQSXW: 3450 3200 2960 3280 2370 2000
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
18OC(64O)'
12OC(54O):
7RWDOFDSDFLW\: 7680 8750 9540 11700 11250 11800
6HQVLWLYHFDSDFLW\: 7680 8750 9540 11700 11250 11800
7RWDOSRZHULQSXW: 3440 3360 3100 3300 2520 2140
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
21OC(70O)'
15OC(59O):
7RWDOFDSDFLW\: 8275 8720 9500 11500 11000 11500
6HQVLWLYHFDSDFLW\: 8275 8720 9500 11500 11000 11500
7RWDOSRZHULQSXW: 3690 3490 3240 3580 2660 2250
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
24OC(75O)'
17OC(63O):
7RWDOFDSDFLW\: 8460 8800 9360 10690 10580 11300
6HQVLWLYHFDSDFLW\: 8460 8800 9360 10690 10580 11300
7RWDOSRZHULQSXW: 3785 3600 3410 3580 2780 2420
6HQVLWLYHFDSDFLW\:
7RWDOFDSDFLW\: 100 100 100 100 100 100
&RROLQJ
+HDWOLQJ
5220 02'(/.
&211(&7,9(,1'22581,7
*:+7%''1$$,î
287'2257(03(5$785('5<
,1'225
7(03(5$785(
20OC
68O)
25OC
77O)
30OC
86O)
35OC
95O)
40OC
104O)
45OC
113O)
21OC(70O)'
15OC(59O):
7RWDOFDSDFLW\: 9560 10300 10400 9430 8045 6900
6HQVLWLYHFDSDFLW\: 8662 8880 8900 8435 7750 6800
7RWDOSRZHULQSXW: 2010 2450 3120 3300 3075 2765
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 90.6 86.2 85.6 89.4 96.3 98.6
24OC(75O)'
17OC(63O):
7RWDOFDSDFLW\: 9795 11500 11265 10500 8820 7515
6HQVLWLYHFDSDFLW\: 8805 9205 9485 9160 8365 7305
7RWDOSRZHULQSXW: 1995 2435 3125 3400 3085 2790
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 89.9 80.0 84.2 87.2 94.8 97.2
27OC(80O)'
19OC(67O):
7RWDOFDSDFLW\: 10135 11370 11425 10575 9025 7900
6HQVLWLYHFDSDFLW\: 9300 9610 9675 9355 8750 7555
7RWDOSRZHULQSXW: 2010 2440 3160 3335 3115 2800
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 91.8 84.5 84.7 88.5 97.0 95.6
32OC(90O)'
23OC(73O):
7RWDOFDSDFLW\: 12170 13200 13250 12020 10390 8700
6HQVLWLYHFDSDFLW\: 9875 10220 10155 10045 9575 8450
7RWDOSRZHULQSXW: 2025 2430 3185 3405 3145 2825
6HQVLWLYHFDSDFLW\:7RWDO
FDSDFLW\: 81.1 77.4 76.6 83.6 92.2 97.1