SUbMITTAL DATA: PLA-A42bA & PUZ-A42NHA - Mitsubishi

SUbMITTAL DATA: PLA-A42bA & PUZ-A42NHA 42,000 bTU/H CEILINg CASSETTE HEAT PUMP SYSTEM 

Job Name: Location: Date: 

Purchaser: Engineer: 

Submitted to: For Reference 

Unit Designation: Schedule No.: 

gENErAL FEATUrES 

• Compact side-discharge outdoor unit 

• Built-in drain lift mechanism for condensate removal; lifts to 33-7/16 in. 

• Wide air flow pattern for better air distribution 

• Auto wave airflow in heating mode—unit independently cycles through 

horizontal and vertical positions for more even heat distribution 

• Independent vane adjustment 

• Automatic fan speed control 

• Self-check function—integrated diagnostics 

• Advanced microprocessor control 

• Hard-wired, wall-mounted, remote controller (PAR-21MAA) 

• Limited warranty: one year on parts and defects and six years on compressor 

OPTIONAL ACCESSOrIES 

Indoor Unit 

• Multi-function Casement (PAC-SH53TM-E) 

• Air Outlet Shutter Plates (PAC-SH51SP-E) 

• Wireless Signal Receiver (PAR-SA9FA-E) 

• Wireless Remote Controller (PAR-FL32MA) 

• i-see Sensor Corner Panel (PAC-SA1ME-E) 

• High-efficiency (MERV 10) Filter (PAC-SH59KF-E) 

Outdoor Unit 

• M-NET Adapter (PAC-SF80MA-E) 

• Air Outlet Guide (PAC-SG59SG-E; two pieces are required) 

• Wind Baffle (WB-PA2; two pieces are required) 

Cooling* 

Rated Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42,000 Btu/h 

Minimum Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . .18,000 Btu/h 

SEER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14.4 Btu/h/W 

Total Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..4,600 W 

Heating* 

Rated Capacity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45,000 Btu/h 

Minimum Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . .18,000 Btu/h 

HSPF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9.3 Btu/h/W 

Total Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..4,450 W 

* Rating Conditions (Cooling) - Indoor: 80ºF (27ºC) DB, 67ºF (19ºC) WB. Outdoor: 95ºF 

(35ºC) DB, 75ºF (24ºC) WB. 

(Heating) - Indoor: 70ºF (21ºC) DB, 60ºF (16ºC) WB. Outdoor: 47ºF (8ºC) DB, 43ºF (6ºC) WB. 

Power Supply . . . . . . . . . . . . . . . . . . . . 208 / 230V, 1-Phase, 60 Hz 

Breaker Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 A 

Voltage 

Indoor - Outdoor S1-S2 . . . . . . . . . . . . . . . . . . . . . . AC 208 / 230V 

Indoor - Outdoor S2-S3 . . . . . . . . . . . . . . . . . . . . . . . . . . . .DC 24V 

Indoor - Remote Controller. . . . . . . . . . . . . . . . . . . . . . . . . .DC 12V 

OPErATINg rANgE 

Cooling 

Heating 

Maximum 

Minimum 

Maximum 

Minimum 

Indoor Intake Air Temp. Outdoor Intake Air Temp. 

95ºF (35ºC) DB, 

71ºF (22ºC) WB 

115ºF (46ºC) DB 

67ºF (19ºC) DB, 


0ºF** (-18ºC) DB 

80ºF (27ºC) DB, 


70ºF (21ºC) DB, 


70ºF (21ºC) DB, 


12ºF (-11ºC) DB, 

10ºF (-12ºC) WB 

** With optional wind baffle accessory installed. If not installed, the minimum 

temperature will be 23ºF (-5ºC) DB. 

Indoor Unit: PLA-A42BA 

Approval Construction 

Remote Controller: 

PAR-21MAA 

Outdoor Unit: PUY-A42NHA 

Indoor Unit 

MCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A 

Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.00 F.L.A. 

Fan Motor Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120 W 

Airflow (Lo - M1 - M2 - Hi) . . . . . . 780 - 880 - 990 - 1,090 Dry CFM 

740 - 850 - 950 - 1,060 Wet CFM 

Sound Level (Lo - M1 - M2 - Hi) . . . . . . . . . . 34 - 36 - 39 - 41 dB(A) 

DIMENSIONS UNIT INCHES / MM PANEL INCHES / MM 

W 33-1/16 / 840 37-3/8 / 950 

D 33-1/16 / 840 37-3/8 / 950 

H 11-3/4 / 298 1-3/8 / 35 

Weight (Unit/Grille) 

lbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 / 13 

kg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 / 6 

Field Drainpipe Size O.D.. . . . . . . . . . . . . . . . . . . . . 1-1/4" / 32 mm 

Wall-mounted Remote Controller . . . . . . . . . . . . . . . . . PAR-21MAA 

(See Data Submittal Sheet) 

Outdoor Unit 

Compressor . . . . . . . . . . . . . . . . . . . . . . DC Inverter-driven Rotary 

MCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .…26 A 

Fan Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.4 + 0.4 F.L.A. 

Sound Pressure Level 

Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 dB(A) 

Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 dB(A) 

DIMENSIONS INCHES / MM 

W 37-3/8 / 950 

D 13 + 1-3/16 / 330 + 30 

H 53-1/8 / 1,350 

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .267 lbs. / 121 kg 

Refrigerant Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R410A 

Refrigerant Pipe Size O.D. 

Gas Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5/8" / 15.88 mm 

Liquid Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3/8" / 9.52 mm 

Max. Refrigerant Pipe Length. . . . . . . . . . . . . . . . . . . . . 165' / 50 m 

Max. Refrigerant Pipe Height Difference . . . . . . . . . . . . 100' / 30 m 

Connection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Flared

25/32 to 1-25/32(20~45) 

Ceiling hole 

33-27/32 to 35-13/16(860~910) 

31-7/8(810) 

Ventilation air 

intake hole 

6-5/16 

(160) 

Suspension bolt pitch 

33-1/16(840) 

6-5/16 

(160) 

5-29/32(150) 

3-17/32(90) 

* 6-1/16 

(170) 

* 5-1/2 

(140) 

Suspension bolt 

lower edge 

37-3/8 (950) 

Air intake grille 

Branch duct hole 

C 

D 

Suspension bolt 

M10 or 3/8 

1 

2 

19-11/16 (500) 

Air outlet hole 

3-17/64 

(83) 

1-27/64 

(36) 

(50~70) 

1-15/16~2-3/4 

Ceiling 

Grille 

Entire 

periphery 

For MA-Remote controller 

terminal block 

Corner pocket 

23-1/2 (597) 

Air intake hole 

19-11/16 (500) 

Air outlet hole 

37-3/8 (950) 

Indoor unit 

Min.19-11/16(500) 

For wiring replacement kit 

terminal block 

Min.94-1/2(2400) 

from floor 

Floor 

Dimensions: PLA-A42BA 

15/16 (24) 

6-5/16 (160) 

Suspension bolt pitch 

-3/16 +35 

23-13/16 +1-3/8 (605 -5 ) (5/16) 

24-13/32 (620) 

(7.5) 

33-27/32 to 35-13/16 (860~910) 

Ceiling hole 

(156) 

(105) 

Ceiling 

Grille 

23-1/2 (597) 

Air intake hole 

1-27/64 

3-17/64 (36) 

(83) 

(5/16) 

(7.5) 

7-3/8 

6-5/16 

(187.5) 

(60) 

2-3/8 

33-1/16 (840) 

(284) 

(377) 

11-3/16 14-27/32 

(160) 

Drainpipe connected to 

1-1/4 in. O.D. PVC tube 

M 

M 

Indoor unit/Outdoor unit 

connecting terminal block 

M 

M 

25/32 to 1-25/32(20~45) 

* 4-1/8 

* 6-9/64 

* 7-15/32 

(190) 

A 

25/32 to 

1-25/32 

(20~45) 

25/32 

to 1-25/32 

(20~45) 

+3/16 

11/16 0 

(17 +5 

0 ) 

1-3/8 

(35) 

Drain lift mechanism clean 

hole and Drain emergency 

drainage hole 

Auto vane 

(Air outlet) 

Vane motor 

* B 

PLA-A24BA 




Branch duct 

hole 

( Connected the attached 

flexible pipe or socket. 

Keep 25/64(10)to 19/32(15) 

between unit ceiling 

and ceiling slab. 

Detail connecting of branch duct (nominal 6" 

round or nominal 4 x 14" rectangular) 

3-15/16 (100) 3-15/16 (100) 

3-17/32 (90) 

3-17/32 (90) 

Cut out hole 

(ø 175) 

Burring hole pitch 

( 158) 

6-7/32 

In case of standard grille 

13-25/32 

(350) 

Burring hole 

3-ø 1/8(3-ø 2.8) 

Models 

1 

2 A B C D 



Refrigerant pipe 

····ø6.35mm 

Flared connection 

····1/4 

Refrigerant pipe 

····ø12.7mm 

Flared connection 9-1/2 10-3/16 3-5/32 2-29/32 

····1/2 

(241) (258) (80) (74) 

) 

ø 6-7/8 

Refrigerant pipe Refrigerant pipe 

····ø9.52mm ····ø15.88mm 

Flared connection Flared connection 

····5/8 

11-1/16 11-3/4 3-11/32 3-1/32 

····3/8 

(281) (298) (85) (77) 

ø 5-29/32 

(100) 

(130) 

(ø 150) 

Cut out hole 

Ceiling 

3-15/16 

5-1/8 

14-ø 1/8 

* 6-3/32 (155) 

* 6-9/16(167) 

(14-ø 2.8) 

Burring hole 

Detail drawing of ventilation air intake connection 

* * 

120˚ 

120˚ 

Burring hole pitch 

ø 4-29/32(ø 125) 

Cut out hole 

ø 3-15/16(ø 100) 

In case of wireless remote controller 

Emergency operation switch 

Emergency operation 

switch 

Receiver 

DEFROST/STAND BY lamp 

Operation lamp 

Note1. Use 1-1/4 in. O.D. (32) PVC TUBE. 

Drain lift mechanism is included. 

2. Suspension bolt, use M10 or W3/8. 

(Field supplied) 

3. Electrical box may be removed for service purposes. 

Make sure to slack the electrical wire little bit for 

control/power wires connection. 

4. The height of the indoor unit is adjustable with the grille 

attached. 

5. For the installation of the optional high efficiency filter, 

the optional multi-functional casement is required. 

1) Add 5-5/16 (135mm) to the dimensions marked with an * in the figures 

2) The optional high efficiency filter required optional 

multi-functional casement. 

6. When installing the branch ducts, be sure to insulate adequately. 

Otherwise condensation may occur. 

7. As for necessary installation/service space, please refer to the 

bottom left figure.

1 FREE SPACE (Around the unit) 2 SERVICE SPACE 3 FOUNDATION BOLTS 4 PIPING-WIRING DIRECTIONS 

2-U Shaped notched hole 

(Foundation Bolt M10) 

Rear Air Intake 

Piping and wiring connections 

can be made from 4 directions: 

front, right, rear and below. 

Please secure the unit firmly 

with 4 foundation (M10) 

bolts. (Bolts and washers must 

be purchased locally.) 

Dimensions of space needed 

for service access are 

shown in the below diagram. 

The diagram below shows a 

basic example. 

Explantion of particular details are 

given in the installation manuals etc. 

175 

 

600 

175 

 

19 

150mm 

 

FREE 

 

53 56 

28 370 

417 

45 

Side Air Intake 

330 

FOUNDATION 

Max. 

30mm 

500mm 

 

Min. 10mm 

 

Min. 10mm 

 

Min. 

10mm 

Min. 

Service space 500mm 

 

Min.Min. 

42 

66 

Air Discharge 

30 

2-12*36 Oval hole 

(Foundation Bolt M10) 

Min. 150mm 

 

Min. 1000mm 

 

950 

Earth terminal 

322 

Handle 

Rear Air Intake 

Side Air Intake 

Dimensions: PUZ-A42nHA 

Terminal Block 

Left···Power supply wiring 

Right····Indoor/Outdoor wiring 

Example of Notes 

1 ····Refrigerant GAS pipe connction (FLARE)[ 15.88 

2 ····Refrigerant LIQUID pipe connection (FLARE)[ 9.52 

*1 ····Indication of STOP VALVE connection location. 

Service panel 

Handle 

Handle 

1350 

1076 

1 

* 1 447 

* 1 443 

2 

371 635 

23 

Handle 

Handle 

Air intake 

Piping Knockout Hole Details 

Front piping cover 

Rear piping cover 

71 

71 

When installing the conduit. 

Set the attachment to the 

inner side of each panel. 

1/2 Conduit attachment 

2-ø22.2 

Conduit hole 

(2-ø27Knockout) 

Conduit hole 


(Knockout) Right trunking hole 

(Knockout) 

75 

45 40 

40 

Rear trunking hole 

(Knockout) 

40 

31 

74 

 

ø92 

Rear piping hole 

(Knockout) 

65 

92 

27 55 

23 73 

63 

 

ø92 

19 55 

92 

23 27 

92 

73 63 

Right piping hole 

Conduit hole 


45 

40 

Front trunking hole 

(Knockout) 

Bottom piping hole 

(Knockout) 

27 55 

63 

 

23 73 

ø92 

 

Front piping hole 

(Knockout) 

Drain hole 

5-ø 33 

145 145 145 

 

220 

 

81 219 

30 

92 

65

C SD - PLA-A42BA / PUZ-A42NHA - 200710 © MITSUBISHI ELECTRIC / HVAC 2007 

noTes 

3400 Lawrenceville Suwanee Rd 

Suwanee, GA 30024 

Tele: 678-376-2900 • Fax: 800-889-9904 

Toll Free: 800-433-4822 (#3) 

www.mehvac.com 

Specifications are subject to change without notice.

SUbMITTAL DATA: PLA-A42bA & PUZ-A42NHA - Mitsubishi

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