CS-MZ20UD3EA - Panasonic Air Conditioner Service Manual (repair manual). Page 24

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  Read the catalog and other technical materials 

and prepare the required materials. 

  Applicable piping kit 

 

Applicable piping kit 

Piping size 

Gas Liquid 

CZ-3F5, 7BP 

9.52 mm (3/8") 

6.35 mm (1/4") 

CZ-4F5, 7, 10BP 

12.7 mm (1/2") 

6.35 mm (1/4") 

CZ-52F5, 7, 10BP 

15.88 mm (5/8") 

6.35 mm (1/4") 

 

  Pipe Size Reducer (CZ-MA1P) and Expander 

(CZ-MA2P) for Outdoor Multi Connection  
CS-Z50******, CS-Z60******. 

  Please refer to “Connect the piping”. 

 
■ Other Items to be Prepared (Locally Purchased) 
 

Rigid PVC pipe 

VP20 (outer diameter ø26); also 
sockets, elbows and other parts as 
necessary 

Adhesive 

PVC adhesive 

Insulation 

For refrigerant piping insulation : 
foamed polyethylene with a thickness of 
8 mm or more. 
For drain piping insulation : foamed 
polyethylene with a thickness of 10 mm 
or more. 

Indoor/outdoor 
connecting cable 

4 x 1.5 mm

2

 flexible cord, designation 

type 60245 IEC 57 (H05RN-F) 

Hanging bolt related 
parts 

Hanging bolts (M10) (4) and nuts (12), 
(when hanging the indoor unit) 

 
Table A 

Model Capacity 

Indoor A

min 

(m

2

) 

2.2m for ducted 

2.5m for ducted 

Z25****** 1.0HP 0.64  0.50 

Z35****** 1.5HP 0.71  0.55 

Z50****** 2.0HP 1.37  1.06 

Z60****** 2.25HP 1.37  1.06 

 

* Table “A” only applicable for single split connection. 
* In case of connection to outdoor multi inverter, refer 

to installation manual at outdoor unit. 

 

 

 

 

min

 = (M / (2.5 × (LFL)

(5/4)

 × h

0

))

2

 

 

 

min

  = Required minimum room area, in m

2

 

= Refrigerant charge amount in appliance, in kg  

LFL  = Lower flammable limit (0.306 kg/m

3

) 

 

0

= Installation height of the appliance:  (2.2m for ducted is standard reference installed height) 

(2.5m for ducted is minimum installed height given by manufacturer) 

 
 
 
 

Attaching the remote controller to the wall

Screws 

3 

or 

screws 

4

Remote controller 
cable 

2

Remote controller 

1

Details refer to 
3. INSTALLING 
THE INDOOR 
UNIT (Remote 
Control 
Installation)

Insulation of piping connections

•  Carry out insulation after 

checking for gas leaks and 
secure with vinyl tape.

 Vinyl tape

Sleeve ( )

Bushing-Sleeve ( )

Putty (Gum Type Sealer) ( )

Bend the pipe as closely on 
the wall as possible, but be 
careful that it doesn’t break.

Vinyl tape (Wide) ( )
•  Apply after carrying out 

a drainage test.

•  To carry out the drainage 

test, remove the air 
fi lters and pour water 
into the heat exchanger.

Saddle ( )

Installation parts you 
should purchase ( )

A

Indoor 
unit

B

Outdoor 
unit

IMPORTANT

Begin the installation job from 
the “Indoor Unit” installation.

 

•

This illustration is for 
explanation purposes only.
The indoor unit will actually 
face a different way.