28
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[Fig.10.2.2] (P.10 - 11)
1
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with heat source unit>
2
&RQQHFWLQJHOERZ,'>@2'>@*DV,QFOXGHGZLWK
heat source unit>
3
&RQQHFWLQJSLSH,'>@2'>@/LTXLG,QFOXGHGZLWKKHDW
source unit>
4
&RQQHFWLQJSLSH,'>@2'>@/LTXLG,QFOXGHGZLWKKHDW
source unit>
5
&RQQHFWLQJSLSH,'>@2'>@+LJKSUHVVXUH,QFOXGHG
with heat source unit>
6
&RQQHFWLQJSLSH,'>@2'>@/RZSUHVVXUH,QFOXGHG
with heat source unit>
7
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heat source unit>
8
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9
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0
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a
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c
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<A> Front pipe routing
<B>
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<C>
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A
Shape
B
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C
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D
5HIULJHUDQWVHUYLFHYDOYHSLSHV
E
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F
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G
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7RDWWDFKWKH7ZLQQLQJSLSHVROGVHSDUDWHO\UHIHUWRWKH
instructions included in the kit.
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Pipe routing (for PQHY-P·ZLMU-A)
33
P120
: Use the included connecting pipe
3
to connect.
P72
: Use the included connecting pipe
1
,
2
to connect.
33
8VHWKHSLSHMRLQW¿HOGVXSSO\DQGWKHLQFOXGHG
connecting pipe
1
to connect.
Pipe routing (for PQRY-P·ZLMU-A)
P72
8VHWKHSLSHMRLQW¿HOGVXSSO\DQGFRQQHFWWRWKH
UHIULJHUDQWVHUYLFHYDOYHSLSLQJ
33
([SDQGWKHKLJKSUHVVXUHVLGH¿HOGVXSSOLHGSLSLQJ
,'>LQ@DQGFRQQHFWWRWKHUHIULJHUDQW
service valve piping.
P72
: Use the included connecting pipe
1
,
2
to connect.
33
8VHWKHSLSHMRLQW¿HOGVXSSO\DQGWKHLQFOXGHG
connecting pipe
1
to connect.
10.2. Precautions concerning piping
connection and valve operation
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Removing the pinched connecting pipe
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SUHVVXUHOLTXLGDQGORZSUHVVXUHJDVYDOYHVWRSUHYHQWJDVOHDNDJH
7DNHWKHIROORZLQJVWHSV
1
through
4
to remove the pinched connecting
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1
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2
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LQWKHSLSLQJEHWZHHQWKHUHIULJHUDQWVHUYLFHYDOYHDQGWKHSLQFKHG
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3
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pinched connecting pipe at the location shown in [Fig.10.2.1] and drain
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4
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2
and
3
, heat the brazed section to remove the
pinched connecting pipe.
[Fig. 10.2.1] (P.10)
<A>
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A
6KDIW
B
Service port
C
Cap
D
Pinched connecting pipe severing portion
E
Pinched connecting pipe brazing portion
Warning:
The areas between the refrigerant service valves and the pinched
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and refrigerant oil in that section before heating the brazed section.
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Caution:
Place a wet towel on the refrigerant service valve before heating the
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Caution:
Refrigerant pipe connection
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&KHFNWKHKLJKSUHVVXUHORZSUHVVXUHSLSLQJGLPHQVLRQVEHIRUHFRQQHFWLQJ
WKHUHIULJHUDQWSLSH
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0DNHVXUHWKDWWKHUHIULJHUDQWSLSHGRHVQRWWRXFKRWKHUUHIULJHUDQWVSLSHV
unit panels, or base plates.
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Do not burn the wiring and plate when brazing.
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)RU34+<3Â=6/08$
Heat source unit model
P72
3
P120
3
36
3
36
3
36
0D[LPXPDPRXQWRIUHIULJHUDQW
kg [LBS]
>@
>@
>@
>@
>@
>@
>@
>@
>@
Heat source unit model
36
36
36
P312S
36
36
0D[LPXPDPRXQWRIUHIULJHUDQW
kg [LBS] 55.0 [122]
>@ >@ >@ >@
70.0 [155]
)RU345<3Â=6/08$
Heat source unit model
P72
3
P120
3
36
3
36
3
36
0D[LPXPDPRXQWRIUHIULJHUDQW
kg [LBS]
>@
32.0 [71]
33.0 [73]
>@
>@
>@ >@
52.0 [115]
50.0 [111]
Heat source unit model
36
36
36
P312S
36
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kg [LBS]
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