Mitsubishi Electric PQHY-P-T(S)LMU-A User manual

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
GBF
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
MANUEL D’INSTALLATION
Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer d’une utilisation correcte.
Air-Conditioners For Building Application
HEAT SOURCE UNIT
PQHY-P-T(S)LMU-A PQRY-P-T(S)LMU-A
PQHY-P-Y(S)LMU-A PQRY-P-Y(S)LMU-A For use with R410A

2
7 7.1
[Fig. 7.1.1]
7 7.2
[Fig. 7.2.1]
6
[Fig. 6.0.1]
A
B
8m [26ft]
A: M10anchorbolt.(eld-supplied)
B: Check that the installation leg corners are securely
supported to ensure that the legs do not bend.
C: Check that the installation leg corners are securely
supported.
C
25[1] or less
AB
(Unit:mm[in])
(Unit:mm[in])
A: Space for removing the control box
B: Heat source unit
C: Servicespace(front)
A
B
C
(55.5)769(55.5)
[34-11/16]
880
600
450
161
[23-5/8]
[17-3/4]
[6-3/8]
[2-3/16] [2-3/16]
[13-13/16]
[30-5/16]
350
A
: SuspensionRopes(8m[26ft]orlonger×2ropes)
B
: ProtectivePads(frontandback,4points)

3
8 8.4
[Fig. 8.4.1]
A: Short-circuitwire(Connectedbeforedeliveryfrommanufacturer)
B: Pumpinterlockcircuitconnection(eld-supplied)
TB8
3
4
63PW
A
B
[Fig. 8.4.2]
8 8.1
[Fig. 8.1.1]
8 8.4
Terminal No. TB8-1, 2
Output Relay contacts output Rated voltage: ~ 208/230V
Rated load: 1A
Operation • When setting No.917 for Dip switch 4 (Dipswitch6-10isON) is OFF.
The relay closes during compressor operation.
SW4 0: OFF, 1: ON
12345678910
1010100111
• WhensettingNo.917forDipswitch4(Dipswitch6-10isON)is ON.
The relay closes during reception of cooling or the heating operation signal from the controller.
(Note:ItoutputsevenifthethermostatisOFF(whenthecompressorisnotoperating).)
A: Main circulating water pipe
D: Water outlet (upper)
G: Water inlet (lower)
B: Shutoff valve
E: Refrigerant pipes
H: Drain pipe
C: Shutoff valve
F: Y-type strainer
C
A
G
D
H
E
B
F
Heat source unit sample installation
TM1
TM2
1
TB8
2
3
4
1
TB8
2
3
4
MP
~ 208/230V
52P
MCB
L1 L2
A
C
B
A52P
TM1TM2
Operation
ON signal
X
Pump interlock
Operation
ON signal
Pump interlock
XA: Heat source unit
B: Controlpanel(eld-supplied)
C: To next heat source unit

4
9 9.2
[Fig. 9.2.1]
[PQHY-P72~P240TLMU-A/YLMU-A]
A
BCD
abcd
e
B
CCC C
C
A
e
A
abcd
B
D
CCC C C
A
F
[PQHY-P144~P360TSLMU-A/YSLMU-A]
A1A2
A
abcde
unit1unit2
B
E
D
CCCCC
A
A
F
C D e
A1A2
AB
abcd
unit1unit2
B
E
CC C C
C
A
A
A
Heat source unit
B
1st branch
C
Indoor unit
D
Cap
E
Heat source twinning kit
F
Header
* The total length of A1(A2),A3
and A4is less than 10 m [32 ft].

5
9 9.2
[Fig. 9.2.2]
[PQRY-P72~P240TLMU-A/YLMU-A]
A
B
ab
c
d
E
BC
FE
E
A
(*NOTE1)
i
jg
h
BCD
F
[PQRY-P144~P336TSLMU-A/YSLMU-A]
A: Heat source unit
B: BCcontroller(standard)
C: BCcontroller(main)
D: BCcontroller(sub)
E: Indoorunit(06~54)
F: Indoorunit(72~96)
G: Heat source twinning kit
A1A2
B
C
E
D
A
abcdf
e
unit1
unit2
*NOTE1
G
EF
C
EE
E
E
D
D
A
A

6
9 9.2
PQHY-P·T(S)LMU-A/Y(S)LMU-A
A (Unit:mm[in])
Heat source model Unit combination A A1 *3 A2 *3
Unit1 Unit2 Liquid Side Gas Side Liquid Side Gas Side Liquid Side Gas Side
P72T/YLMU - - ø9.52[3/8] ø19.05[3/4] - - - -
P96T/YLMU - - *1 ø9.52[3/8] ø22.2[7/8] - - - -
P120T/YLMU - - *2 ø9.52[3/8] ø22.2[7/8] - - - -
P144T/YLMU - - ø12.7[1/2] ø28.58[1-1/8] - - - -
P144T/YSLMU P72 P72 ø12.7[1/2] ø28.58[1-1/8] ø9.52[3/8] ø19.05[3/4] ø9.52[3/8] ø19.05[3/4]
P168T/YLMU - - ø15.88[5/8] ø28.58[1-1/8] - - - -
P168T/YSLMU P96 P72 ø15.88[5/8] ø28.58[1-1/8] ø9.52[3/8] ø22.2[7/8] ø9.52[3/8] ø22.2[7/8]
P192T/YLMU - - ø15.88[5/8] ø28.58[1-1/8] - - - -
P192T/YSLMU P96 P96 ø15.88[5/8] ø28.58[1-1/8] ø9.52[3/8] ø22.2[7/8] ø9.52[3/8] ø22.2[7/8]
P216T/YLMU - - ø15.88[5/8] ø28.58[1-1/8] - - - -
P216T/YSLMU P120 P96 ø15.88[5/8] ø28.58[1-1/8] ø12.7[1/2] ø22.2[7/8] ø12.7[1/2] ø22.2[7/8]
P240T/YLMU - - ø15.88[5/8] ø28.58[1-1/8] - - - -
P240T/YSLMU P120 P120 ø15.88[5/8] ø28.58[1-1/8] ø12.7[1/2] ø28.58[1-1/8] ø12.7[1/2] ø28.58[1-1/8]
P288T/YSLMU P144 P144 ø19.05[3/4] ø34.93[1-3/8] ø12.7[1/2] ø28.58[1-1/8] ø12.7[1/2] ø28.58[1-1/8]
P312T/YSLMU P168 P144 ø19.05[3/4] ø34.93[1-3/8] ø15.88[5/8] ø28.58[1-1/8] ø12.7[1/2] ø28.58[1-1/8]
P336T/YSLMU P168 P168 ø19.05[3/4] ø41.28[1-5/8] ø15.88[5/8] ø28.58[1-1/8] ø15.88[5/8] ø28.58[1-1/8]
P360T/YSLMU P192 P168 ø19.05[3/4] ø41.28[1-5/8] ø15.88[5/8] ø28.58[1-1/8] ø15.88[5/8] ø28.58[1-1/8]
PQRY-P·T(S)LMU-A/Y(S)LMU-A
A (Unit:mm[in])
Heat source model
Unit combination A A1 *3 A2 *3
Unit1 Unit2 High press.
Side
Low press.
Side
High press.
Side
Low press.
Side
High press.
Side
Low press.
Side
P72T/YLMU - - ø15.88[5/8] ø19.05[3/4] - - - -
P96T/YLMU - - ø19.05[3/4] ø22.2[7/8] - - - -
P120T/YLMU - - ø19.05[3/4] ø22.2[7/8] - - - -
P144T/YLMU - - ø22.2[7/8] ø28.58[1-1/8] - - - -
P144T/YSLMU P72 P72 ø22.2[7/8] ø28.58[1-1/8] ø15.88[5/8] ø19.05[3/4] ø15.88[5/8] ø19.05[3/4]
P168T/YLMU - - ø22.2[7/8] ø28.58[1-1/8] - - - -
P168T/YSLMU P96 P72 ø22.2[7/8] ø28.58[1-1/8] ø19.05[3/4] ø22.2[7/8] ø15.88[5/8] ø19.05[3/4]
P192T/YLMU - - ø22.2[7/8] ø28.58[1-1/8] - - - -
P192T/YSLMU P96 P96 ø22.2[7/8] ø28.58[1-1/8] ø19.05[3/4] ø22.2[7/8] ø19.05[3/4] ø22.2[7/8]
P216T/YLMU - - ø28.58[1-1/8] ø28.58[1-1/8] - - - -
P216T/YSLMU P120 P96 ø28.58[1-1/8] ø28.58[1-1/8] ø19.05[3/4] ø22.2[7/8] ø19.05[3/4] ø22.2[7/8]
P240T/YLMU - - ø28.58[1-1/8] ø34.93[1-3/8] - - - -
P240T/YSLMU P120 P120 ø28.58[1-1/8] ø34.93[1-3/8] ø19.05[3/4] ø22.2[7/8] ø19.05[3/4] ø22.2[7/8]
P288T/YSLMU P144 P144 ø28.58[1-1/8] ø34.93[1-3/8] ø22.2[7/8] ø28.58[1-1/8] ø22.2[7/8] ø28.58[1-1/8]
P312T/YSLMU P168 P144 ø28.58[1-1/8] ø34.93[1-3/8] ø22.2[7/8] ø28.58[1-1/8] ø22.2[7/8] ø28.58[1-1/8]
P336T/YSLMU P168 P168 ø28.58[1-1/8] ø41.28[1-5/8] ø22.2[7/8] ø28.58[1-1/8] ø22.2[7/8] ø28.58[1-1/8]
*1 ø12.7 [1/2] for over 90m
*2 ø12.7 [1/2] for over 40m
*3 The pipe sizes listed in columns A1 to A3 in this table correspond to the sizes for the models listed in the unit 1, 2, and 3 columns. When the order of the models
for unit 1, 2, and 3 change, make sure to use the appropriate pipe size.
*4 BIfthepipinglengthaftertherstjointexceeds40m(≤90m),usetheonesizelargerliquidpipefortheindoorunit.(forPQHY-P·T(S)LMU-A/Y(S)LMU-A)
*5 CWhentheheightdifferencebetweentheindoorunitsis15morgreater(≤30m),usetheonesizelargerliquidpipefortheindoorunit(lowerside).
(forPQHY-P·T(S)LMU-A/Y(S)LMU-A)

7
PQHY-P·T(S)LMU-A/Y(S)LMU-A
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 ~ 240 ø15.88[5/8] ø28.58[1-1/8]
241 ~ 308 ø19.05[3/4] ø34.93[1-3/8]
309 ~ ø19.05[3/4] ø41.28[1-5/8]
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]
Downstream unit model total Joint
~ 72 CMY-Y102SS-G2
73 ~ 144 CMY-Y102LS-G2
145 ~ 240 CMY-Y202S-G2
The 1st branch of P144 ~ P240
241 ~ CMY-Y302S-G2
The 1st branch of P264 ~ P360
Heat source model
Heat source twinning kit
P144 ~ P240 CMY-Y100CBK3
P264 ~ P360 CMY-Y300CBK2
4-Branch header
(Downstream indoor
unit model total 72)
8-Branch header
(Downstream indoor
unit model total 144)
10-Branch header
(Downstream indoor
unit model total 240)
CMY-Y104C-G CMY-Y108C-G CMY-Y1010C-G
PQRY-P·T(S)LMU-A/Y(S)LMU-A
B (Unit:mm[in])
Total capacity of indoor units
Liquid pipe
Gas pipe
~ 54 ø9.52[3/8] ø15.88[5/8]
C,D (Unit:mm[in])
Downstream
unit model total
High-pressure
gas pipe
Low-pressure
gas pipe Liquid pipe
~ 72 ø15.88[5/8] ø19.05[3/4] ø9.52[3/8]
73 ~ 108 ø19.05[3/4] ø22.2[7/8] ø9.52[3/8]
109 ~ 126 ø19.05[3/4] ø28.58[1-1/8] ø12.7[1/2]
127 ~ 144 ø22.2[7/8] ø28.58[1-1/8] ø12.7[1/2]
145 ~ 168 ø22.2[7/8] ø28.58[1-1/8] ø15.88[5/8]
a,b,c,d,e,f (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]
g,h,i,j (Unit:mm[in])
Model number Liquid pipe Gas pipe
g h i j
36 ø9.52[3/8] ø9.52[3/8] ø15.88[5/8] ø15.88[5/8]
48 ø9.52[3/8] ø9.52[3/8] ø15.88[5/8] ø15.88[5/8]
54 ø9.52[3/8] ø9.52[3/8] ø15.88[5/8] ø15.88[5/8]
72 ø9.52[3/8] ø9.52[3/8]
ø19.05[3/4] ø15.88[5/8]
96 ø9.52[3/8] ø9.52[3/8]
ø22.2[7/8] ø15.88[5/8]
Heat source model
Heat source twinning kit
P144 ~ P336 CMY-Z100CBK
9 9.2

8
9 9.2
[Fig. 9.2.3]
<A> Whenthepiping(fromthetwinningpipe)exceeds2m[6ft],includeatrap(gaspipeonly)within2m[6ft].Makesuretheheightofthetrapis200mm[7-7/8in]ormore.
If there is no trap, oil can accumulate inside the pipe, causing a shortage of oil damaging the compressor.
(forPQHY-P·TSLMU-A/YSLMU-A)
2m[6ft]
D
A
D
A
B
C
<B> Exampleofpipingconnection(forPQHY-P·TSLMU-A/YSLMU-A)
A: Indoor unit
B: Trap(gaspipeonly)
C: Within 2 m [6ft]
D: Twinning pipe
E: Field-supplied piping
F: Twinning kit
G: Straight pipe length that is 500mm [19-11/16 in] or more
G
F
E
E
[Fig. 9.2.4]
<A> Install the piping so that oil will not accumulate in the stopped heat source unit. (both the liquid and the gas side for PQHY-P·TSLMU-A/YSLMU-A,
thehigh-pressuresideonlyforPQRY-P·TSLMU-A/YSLMU-A)
1.
A
C
D
D
unit 1 unit 2 unit 3
C
DDB
unit 1 unit 2 unit 3
The NG example shows that oil accumulates because the units are installed on a reverse gradient while unit 1 is in operation, and unit 3 is stopped.
2.
unit 1 unit 2 unit 3
unit 1 unit 2 unit 3
h1
h1=0.2m(7-7/8in)max
unit 1 unit 2 unit 3
h1
h1>0.2m(7-7/8in)
TheNGexampleshowsthatoilaccumulatesintounits1and2whileunit3isinoperation,andunits1and2arestopped.Verticalpipeheight(h)shouldbe0.2m(7-7/8in)orbelow.

9
9 9.2
3.
unit 1
unit 2 unit 3
h1
h1=0.2m(7-7/8in)max
h2 h2=0.1m(3-15/16in)max
unit 1
unit 2 unit 3
h1
h1>0.2m(7-7/8in)
h2
h2>0.1m(3-15/16in)
TheNGexampleshowsthatoilaccumulatesintounit1whileunit3isinoperation,andunit1isstopped.Verticalpipeheight(h)shouldbe0.2m(7-7/8in)orbelow.
4.
unit 1 unit 2
unit 3
h1
h2=0.1m(3-15/16in)max
h1=0.2m(7-7/8in)max
h2
unit 1 unit 2
unit 3
h2>0.1m(3-15/16in)
h1>0.2m(7-7/8in) h1h2
TheNGexampleshowsthatoilaccumulatesintounit3whileunit1isinoperation,andunit3isstopped.Verticalpipeheight(h)shouldbe0.2m(7-7/8in)orbelow.
<B> Slopeoftwinningpipes(forPQHY-P·TSLMU-A/YSLMU-A)
Make sure the slope of the twinning pipes are at an angle within ±15° to the horizontal plane.
If the slope exceeds the angle specified, the unit may be damaged.
±15°
D
E
<C> Exampleofpipingconnection(forPQRY-P·TSLMU-A/YSLMU-A)
A: Slope downward
B: Slope upward
C: BCcontroller(standardormain)
D: Twinning pipe
E: Slope of the twinning pipe is at an angle within ±15° to the ground
F: Twinningpipe(low-pressureside)
G: Twinningpipe(high-pressureside)
H: Field-supplied piping (low-pressure connecting pipe: between heat source
units)
I: Field-suppliedpiping(low-pressuremainpipe:toBCcontroller)
J: Field-suppliedpiping(high-pressuremainpipe:toBCcontroller)
F
H
G
JI

10
10 10.2
[Fig. 10.2.1]
<A> Service valve for refrigerant
(Liquidside/brazedforPQHY-P·T(S)LMU-A/Y(S)LMU-A)
(High-pressureside/brazedforPQRY-P·T(S)LMU-A/Y(S)LMU-A)
<B> Service valve for refrigerant
(Gasside/brazedforPQHY-P·T(S)LMU-A/Y(S)LMU-A)
(Low-pressureside/brazedforPQRY-P·T(S)LMU-A/Y(S)LMU-A)
[Fig. 10.2.2]
No. 1234
AShape
ODø28.6
IDø28.6
IDø15.88
ODø15.88
PQHY-P72TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P96TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P120TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P144TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P168TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P192TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P216TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQHY-P240TLMU-A/YLMU-A 1 <B>Gas side 1 <C>Liquid side 1 1
PQRY-P72TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P96TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P120TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P144TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P168TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P192TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P216TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
PQRY-P240TLMU-A/YLMU-A 1 <B>Low-pressure side - - 1
No. 5678
AShape
PQHY-P72TLMU-A/YLMU-A 1 1 1 1
PQHY-P96TLMU-A/YLMU-A 1 1 1 1
PQHY-P120TLMU-A/YLMU-A 1 1 1 1
PQHY-P144TLMU-A/YLMU-A 1 1 1 1
PQHY-P168TLMU-A/YLMU-A 1 1 1 1
PQHY-P192TLMU-A/YLMU-A 1 1 1 1
PQHY-P216TLMU-A/YLMU-A 1 1 1 1
PQHY-P240TLMU-A/YLMU-A 1 1 1 1
PQRY-P72TLMU-A/YLMU-A - 1 1 1
PQRY-P96TLMU-A/YLMU-A - 1 1 1
PQRY-P120TLMU-A/YLMU-A - 1 1 1
PQRY-P144TLMU-A/YLMU-A - 1 1 1
PQRY-P168TLMU-A/YLMU-A - 1 1 1
PQRY-P192TLMU-A/YLMU-A - 1 1 1
PQRY-P216TLMU-A/YLMU-A - 1 1 1
PQRY-P240TLMU-A/YLMU-A - 1 1 1
A: Shaft
B: Service port
C: Cap
D: Pinched connecting pipe severing portion
E: Pinched connecting pipe brazing portion
A
C
B
E
D