Panasonic CS-Z25VKEW Installation Instruction

76
13.8 <Reference> Analysis method for no error code, no cooling / no
warming
13.8.1 Preparation for appropriate diagnosis
In order to obtain appropriate operation characteristics, minimum 15 minutes or more operation time [testing
operation (rated operation)] is required.
1. Method of rated operation (rated operation)
For the models which have two buttons of “emergency operation and forced cooling operation”, press forced
cooling button once. For the models which have only emergency operation button, press the button once for
5 seconds and when hear “beep” sound, release the button. Then, cooling operation starts.
2. Checking the mal-functions of indoor / outdoor units
1) Any obstacles against heat release and air suction? (short circuit)
(Forget to remove the outdoor unit cover or fallen leaves blocking the outdoor unit)
2) Are the indoor unit air filters clean? (obstructing heat suction)
3) Is the setting temperature on the remote controller correct? (is the setting temperature set at lower/higher
than the room temperature?)
13.8.2 Understanding and verification of refrigerant cycle
Heat exchanger
Heat exchanger
Compressor
（COMP）
4-way
valve
Condenser
（COND）
Expansion
valve
Liquid side
2-way
valve
Gas side
3-way
valve
High temp
High pressure
Air
Mid temp /
High pressure
Liquid
Low
temp/
Pressure
liquid
Low temp
Low pressure
Air
Evaporator
（EVA）
FM
Fan
Fan
Capillary tube
Indoor unit Temp difference
Suction temp ＜Cooling＞ ８
or more
Release temp ＜Heating＞ １
４ or more
＊
Measured after 15 mins with strong
fan operation
(Cooling)
G
as pressure 0.9～1.2MPa
Low temp /
Low pressure
Air
Low temp /
Low pressure
liquid
(Cooling Heating )
High temp /
High pressure
Air
Mid temp /
high pressure
liquid
Low temp /
Low pressure
Liquid
Low temp /
Low pressure
Air
Mid temp /
High temp
liquid
(Heating)
G
as pressure 2.2～ 3.0MPa
Release temp
Outdoor temp
Suction temp
Heat exchanger
temp
Heat exchanger
temp
High temp / high
pressure
Air
「Indoor 「」 Outdoor」

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