G-coil Evaporator for Indoor Cassette Unit

G-Coil Evaporator for Indoor Cassette Air Conditioner

1. Design Feature Matching Cassette Structure

G-shaped bent fin coil is customized for ceiling cassette indoor unit (4-way blow cassette); curved + multi-angle folded structure fits the square compact inner cavity of cassette cabinet perfectly, replacing traditional flat/A-coil.

Air intake: 3-sided surrounding air inlet instead of dual-side A-coil airflow dead zone

Compact size: thinner coil thickness to reserve inner space for cross-flow fan and drain pan inside ceiling cassette

2. Core Advantages for Cassette Unit

Higher cooling & dehumidification performance

Extra effective heat exchange surface vs standard A-coil; better moisture removal for shopping mall, office ceiling cassette where high occupancy brings high latent load, stabilize indoor RH 48%–52%.

Lower air resistance, quieter operation

Smooth curved air passage reduces static pressure; cassette fan runs at lower RPM for same airflow, cuts indoor running noise (key merit for ceiling concealed cassette).

Optimized condensate drainage

Natural inclined G profile guides condensed water flowing toward central drain pan of cassette, less water leakage risk than flat/A coil (a common cassette failure pain point).

Compact retrofitting & OEM assembly

Same outer mounting dimension as original A-coil cassette design, direct drop-in replacement without modifying cassette plastic housing or blower bracket.

3. Standard Construction Spec

Tube: 3/8” copper tube, mechanically expanded with aluminum fin

Fin: Hydrophilic coated aluminum, 10~13 FPI (10–11 FPI for humid south Asia/coastal market)

Circuit: Multi-path refrigerant split circuit, uniform refrigerant distribution for 2.0HP ~ 5HP cassette mainstream tonnage

4. Main Application Places for Cassette with G-Coil

Shopping mall shop, retail store ceiling cassette AC

Office building, restaurant, hotel lobby 4-way cassette unit

Supermarket auxiliary indoor air conditioning, compact mechanical ceiling space