Mitsubishi Electronics PUHY-HP-THMU-A installation manual Outdoor model P144 ~ P192

[Outdoor model : P144 ~ P192]

unit 1	unit 2
A		A
A1	A2
		A
	E	B

B

a

C

C

b

C

D

c

C

d

C

e

C

unit 1	unit 2
A	A
A1	A2

A			F
B
E
a	b c		d	e D
C	C	C	C	C

GB

A Outdoor unit	B 1st branch
C Indoor unit	D Cap
E Outdoor Twinning Kit	F Header

* The total length of A1 and A2 is less than 10 m [32 ft].

A

(Unit: mm [in])

Outdoor model	Unit combination			A		A1		A2
	unit 1	unit 2	Liquid pipe	Gas pipe	Liquid pipe	Gas pipe	Liquid pipe	Gas pipe
P72	-	-	ø12.7 [1/2] Brazed	ø19.05 [3/4] Brazed	-	-	-	-
P96	-	-	ø12.7 [1/2] Brazed	ø22.2 [7/8] Brazed	-	-	-	-
P144	P72	P72	ø15.88 [5/8] Brazed	ø28.58 [1-1/8] Brazed	ø9.52 [3/8] Flare	ø19.05 [3/4] Brazed	ø9.52 [3/8] Flare	ø19.05 [3/4] Brazed
P192	P96	P96	ø15.88 [5/8] Brazed	ø28.58 [1-1/8] Brazed	ø9.52 [3/8] Flare	ø22.2 [7/8] Brazed	ø9.52 [3/8] Flare	ø22.2 [7/8] Brazed

	B, C, D				(Unit: mm [in])
	Total capacity of indoor units		Liquid pipe		Gas pipe
	~ 54		ø9.52 [3/8]		ø15.88 [5/8]
	55 ~ 72		ø9.52 [3/8]		ø19.05 [3/4]
	73 ~ 108		ø9.52 [3/8]		ø22.2 [7/8]
	109 ~ 144		ø12.7 [1/2]		ø28.58 [1-1/8]
	145 ~ 234		ø15.88 [5/8]		ø28.58 [1-1/8]
a, b, c, d, e					(Unit: mm [in])
	Model number	Liquid pipe			Gas pipe
	06, 08, 12, 15, 18	ø6.35 [1/4]		ø12.7 [1/2]
	24, 27, 30, 36, 48, 54	ø9.52 [3/8]		ø15.88 [5/8]
	72	ø9.52 [3/8]		ø19.05 [3/4]
	96	ø9.52 [3/8]		ø22.2 [7/8]

Precautions for outdoor unit combinations

Refer to [Fig. 9.2.2] for the positioning of twinning pipes.

[Fig. 9.2.2]

Downstream unit model total				Joint
~ 72		CMY-Y102S-G2
73 ~ 144		CMY-Y102L-G2
145 ~ 234			CMY-Y202-G2
The 1st branch of P144 ~ P234
4-Branch header	8-Branch header			10-Branch header
(Downstream indoor	(Downstream indoor			(Downstream indoor
<	<	144)		unit model total	<	234)
unit model total = 72)	unit model total =				=
CMY-Y104-G	CMY-Y108-G			CMY-Y1010-G
Outdoor model		Outdoor Twinning Kit
P144 ~ P192		CMY-Y100VBK2

<A> Make sure the pipes from the twinning pipe to the outdoor unit are sloped downwards (towards the twinning pipes).

A C C

FB F

<B> When the piping on the outdoor unit side (from the twinning pipe) exceeds 2 m [6 ft], ensure a trap (gas pipe only) within 2 m [6 ft]. Make sure the height of the trap is 200 mm [7-7/8 in] or more.

If there is no trap, oil can accumulate inside the pipe, causing a shortage of oil and may damage the compressor.

(Unit: m [ft])

F

C

2[6]

D

E

F

C

8