Panasonic CS-Z25VKEW Installation Instruction

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3. Torque wrenches (diameters 1/2, 5/8)
In order to strengthen the compressive strength, the
diameters of wrenches change depending on the flare
nut sizes.
Torque wrenches
Differences in torque wrenches
R32
(common R410A)
R22
1/2
(diameter × torque)
26 mm × 55 N•m
(550 kgf•m)
24 mm × 55 N•m
(550 kgf•m)
5/8
(diameter × torque)
29 mm × 65 N•m
(650 kgf•m)
27 mm × 65 N•m
(650 kgf•m)
4. Manifold gauges
R22 gauges cannot be used because of the high
pressures.
Each port of manifold has different shapes in order
to prevent inserting wrong refrigerant.
*However, the port shape for R410A and R32 is the
same; therefore, attention need to be paid not to insert
wrong refrigerant.
Differences in high/low pressure gauges
R32
(common R410A)
R22
High pressure
gauges (red)
-0.1 ~ 5.3 MPa
-76 cmHg ~ 53 kgf / cm
2
-76 cmHg ~ 35 kgf / cm
2
Low pressure
gauges (blue)
-0.1 ~ 3.8 MPa
-76 cmHg ~ 38 kgf / cm
2
-76 cmHg ~ 17 kgf / cm
2
Difference in manifold port sizes
R32
(common R410A)
R22
Port sizes 1/2 UNF20 7/16 UNF20
5. Charging hoses
The pressure resistance of charge hoses is increased.
At the same time, the material is changed to HFC
resistant, and the size of each manifold adopter is
changed, as the port size of manifold gauge itself.
Further, some hoses are with anti-gas pressure
backflow valves placed near the adopters. (hoses with
the valves recommended)
Manifold gauges / Charging hoses
Differences in charging hoses
R32
(common R410A)
R22
Pressure
Resistance
Normal
operation
pressure
5.1 MPa
(52 kgf / cm
2
)
3.4 MPa
(35 kgf / cm
2
)
Burst
pressure
27.4 MPa
(280 kgf / cm
2
)
17.2 MPa
(175 kgf / cm
2
)
Material
HNBR rubber
Internal nylon
coating
NBR rubber
6. Vacuum pump and Vacuum pump adopter
When using a vacuum pump, it is necessary to set a
solenoid valve in order to prevent backflow of vacuum
pump oil into the charge hoses, and use a vacuum
pump with oil backflow prevention function, or use the
vacuum pump with vacuum pump adopter.
If vacuum pump oil（mineral oil-based）mixes with
R410A (R32), it may cause damage to the machine.
Vacuum pump
Vacuum pump adopter

Panasonic CS-Z25VKEW Specifications

General

AC input voltage	230 V
Design load (cooling)	2.5 kW
Annual energy consumption (cooling)	103 kWh
Hourly energy consumption (cooling)	- kWh
Design load (heating) (Warmer heating season)	- kW
Design load (heating) (Average heating season)	2.7 kW
Energy efficiency class (heating) (Colder heating season)	-
Energy efficiency class (heating) (Average heating season)	A+++
Annual energy consumption (heating) (Average heating season)	741 kWh
Type	Air conditioner indoor unit
Multi-split	No
Product color	White
Dehumidifying capacity	1.5 l/h
Air conditioner functions	Cooling, Dehumidifying, Heating
Cooling capacity in watts (max)	3200 W
Cooling capacity in watts (min)	850 W
Heating capacity in watts (max)	5000 W
Heating capacity in watts (min)	800 W
Cooling capacity in watts (nominal)	2500 W
Cooling energy efficiency (EER, W/W)	4.81
Heating energy efficiency (COP, W/W)	4.79
Seasonal efficiency rating (cooling) (SEER)	8.5
Seasonal efficiency rating (heating) (SCOP)	5.1
Heating capacity in watts (nominal) (Warmer heating season)	- W
Heating capacity in watts (nominal) (Average heating season)	3400 W
Indoor unit type	Wall-mountable
Indoor unit depth	194 mm
Indoor unit width	919 mm
Indoor unit height	295 mm
Indoor unit weight	10000 g
Indoor units quantity	1
Cooling airflow (indoor unit)	612 m³/h
Heating airflow (indoor unit)	672 m³/h
Indoor unit sound power level	55 dB
Indoor unit noise level (low speed)	19 dB
Indoor unit noise level (high speed)	39 dB
Wi-Fi	Yes
Outdoor unit noise level	- dB