The GE Universal Fit 3-ton packaged electric/electric rooftop unit (catalog GC866, chassis ZCD036S5B) is a standard-efficiency light commercial RTU for all-electric cooling with optional electric heat. It is built for contractor replacement and new-install jobs where gas heat is not required.

Configured for 208/230V, 1-phase power, this unit ships as a complete packaged rooftop with a 0.75 HP blower (Z01 drive). Universal Fit footprint support is intended to simplify curb matching on common commercial replacements and reduce downtime on the roof.

The cabinet uses heavy-gauge construction with full-perimeter base rails for rigging and handling. Service access panels, filter access, and factory refrigerant charge (R-454B with refrigerant detection system on current Universal Fit packaged models) are designed for straightforward startup and maintenance. Field accessories such as economizers, outdoor-air dampers, electric heat kits, and curbs must match A-BOX cabinet sizing — confirm accessory kits before quoting.

Key features:

• 3-ton packaged electric/electric rooftop; chassis ZCD036S5B

• 208/230V, 1-phase; optional electric heat

• 0.75 HP blower (Z01 drive)

• R-454B refrigerant; factory refrigerant detection system (RDS)

• Scroll compressor cooling circuit; all-aluminum outdoor coil construction

• Shipped downflow; field-convertible to horizontal airflow where applicable

• Full-perimeter base rail with forklift slots and rigging holes

• Disposable 2" MERV 4 filters furnished as standard (typical packaged configuration)

• AHRI-certified / ASHRAE 90.1-compliant designs per GE commercial literature for this chassis family