Panasonic CS-Z25VKEW Installation Instruction

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1. Measuring temperature
1) Indoor unit suction temperature, release temperature, temperature difference, → Measure by thermometer
2) 2-way valve pipe temperature in cooling mode is low temperature (benchmark：5 ~ 10°C), in heating mode
is medium temperature (benchmark：25 ~ 35°C).
3) 3-way valve pipe temperature in cooling mode is low temperature (benchmark：7 ~ 15°C) in heating mode is
high temperature (benchmark：38 ~ 50°C).
2. Measuring electric current
 Measuring electric current in operation → check by clump meter (refer to table of technical characteristic
guideline)
3. Meauring pressure
 Measuring gas pressure → check the pressure by manifold gauge (refer to table of technical characteristic
guideline)
4. Any sound from the expansion valve?
(when starting the operation and the outdoor unit is turned on, the expansion valve is re-set, check if there is any
edged sound or clack sound)
13.8.3 Guidance for diagnosis of refrigerant cycle
Comparison with
normal operation
Cooling mode
High Low
Refrigerant
pressure
Excess insertion of refrigerant Clogged capillary, expansion valve malfunction
Heat releasing obstruction Clog by moisture
Dirty condenser, attachment of impurity Lack of refrigerant gas
Compressor malfunction
Operation electric
current
Excess insertion of refrigerant Lack of refrigerant gas
Heat releasing obstruction Compressor malfunction
Dirty condenser, impurity Mixture of air
(Insufficient evacuation)
2-way valve
temperature
Excess insertion of refrigerant Clogged capillary, expansion valve malfunction
Compressor malfunction Lack of refrigerant gas
3-way valve
temperature
Lack of refrigerant gas • Compressor malfunction Excess insertion of refrigerant
Clogged capillary, expansion valve malfunction
Suction
temperature
&
Release air
temperature
Temperature difference at or less than 8°C in cooling operation • • • Causes
• Heat releasing obstruction • Dirty condenser • Attachment of impurity
• Lack of refrigerant gas • Excess insertion of refrigerant
• Mixture of air • Mixture of moisture
• Clogged capillary • Expansion valve malfunction • Compressor malfunction
◎ Above all are based on the condition that the installation work is properly performed (no issues in indoor / outdoor
pipe connections, etc.)

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