HITACHI RAS-DX18CWK/RAC-DX18CWK vs MITSUBISHI HEAVY SRK53MWKHC1 Comparison

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RAS-DX18CWK/RAC-DX18CWK

HITACHI RASDX18CWK 2HP R32 420mm Inverter Split Type Air-Conditioner Cooling only

HK$7,389 ~~HK$10,800~~

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SRK53MWKHC1

Mitsubishi Heavy SRK53MWKHC1 2HP R32 420Silm Inverter Split Type Air Conditioner(Cooling)(Wokeehong)

HK$7,189 ~~HK$15,980~~

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RAS-DX18CWK/RAC-DX18CWK SRK53MWKHC1

SRK53MWKHC1 lists annual cooling energy consumption of 558 kWh and CSPF of 4.8130, versus 590 kWh and 4.5359 for RAS-DX18CWK/RAC-DX18CWK.
Both outdoor units are 420 mm high. RAS-DX18CWK/RAC-DX18CWK measures 792 × 420 × 299 mm, while SRK53MWKHC1 measures 780 × 420 × 290 mm, both W × H × D.
RAS-DX18CWK/RAC-DX18CWK provides Frost Wash and stainless-steel cleaning features; SRK53MWKHC1 provides UV-CLEAN, an allergen filter and a 3-layer filter.
SRK53MWKHC1 includes built-in WiFi mobile-app control; WiFi is not specified for RAS-DX18CWK/RAC-DX18CWK.
RAS-DX18CWK/RAC-DX18CWK has a 2-year full warranty; SRK53MWKHC1 has a 3-year full-machine warranty.

Item	RAS-DX18CWK/RAC-DX18CWK	SRK53MWKHC1
Air-conditioner type	Cooling-only split type
Horsepower	2 HP
Inverter technology	All-DC inverter
Refrigerant	R32
Energy label grade	Grade 1
Annual cooling energy consumption	590 kWh	558 kWh
Rated cooling power consumption — energy label	1.900 kW	1.840 kW
Rated cooling capacity — energy label	5.300 kW	5.310 kW
Cooling capacity — product specifications	5.3 kW / 18,080 BTU/h	5.31 kW / 18,118 BTU/h
Separate cooling capacity value — energy label information	5.10 kW	5.27 kW
Total input power — product specifications	1,900 W	Not specified
Cooling Seasonal Performance Factor (CSPF)	4.5359	4.8130
Coefficient of Performance (COP)	Not specified	2.89
Dehumidifying capacity	1.8 L/h	Not specified
Indoor dimensions (W × H × D)	780 × 280 × 215 mm	798 × 294 × 230 mm
Outdoor dimensions (W × H × D)	792 × 420 × 299 mm	780 × 420 × 290 mm
Indoor net weight	8.5 kg	9.5 kg
Outdoor net weight	28.5 kg	24.5 kg
Liquid pipe size	6.35 mm (1/4 inch)	1/4 inch
Gas pipe size	12.7 mm (1/2 inch)	1/2 inch
Maximum pipe length	Not specified	20 m
Airflow system	4D Wide Airflow with automatic vertical and horizontal swing	Jet Airflow for long-distance airflow; 6-Area Smart Air Distribution to avoid direct airflow onto people
Built-in WiFi control	❌ Not specified	✅ Remote operation through a mobile application
Frost Wash system	✅ Freezes dust and mold on the heat exchanger, then washes away dirt with melted water	❌ Not specified
Stainless Clean system	✅ Stainless-steel pre-filter and air duct; stated 99% antibacterial effectiveness	❌ Not specified
UV-CLEAN technology	❌ Not specified	✅ Irradiates the indoor unit interior to kill and inhibit bacteria and viruses
Allergen filter	❌ Not specified	✅ Enzyme-based inhibition of bacteria, mold, dust mites and pollen; tested to inhibit SARS-CoV-2 activity
3-layer filter	❌ Not specified	✅ Anti-mold, antibacterial and deodorizing functions
Eco Mode	✅ Automatically adjusts the operating mode to save electricity	❌ Not specified
Powerful Mode	✅ One-touch maximum cooling performance	❌ Not specified
Sleep timer	✅ Preset shutdown time	❌ Not specified
Place of manufacture	China
Energy label category	Category 3
Warranty	2-year full warranty	3-year full-machine warranty; distributed by Wo Kee Hong

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