The GE Universal Fit 3-ton packaged gas/electric rooftop unit (catalog GC883, chassis ZGD036S5E) combines DX cooling with factory gas heat in one curb-mounted package. It is a typical choice when the job already has gas at the roof and the existing unit is gas/electric.

This configuration is 208/230V, 3-phase, with 108 MBH single-stage gas heat, and includes an ECM blower. Universal Fit footprint design supports common commercial curb replacements so crews can change out the unit with less curb rework when dimensions match.

Heavy-gauge cabinet construction, full-perimeter base rails, and accessible gas/heat and compressor sections support serviceability. Current Universal Fit packaged models use R-454B with a factory refrigerant detection system. Confirm Low NOx requirements (not claimed on this SKU), LP conversion needs, and economizer/curb accessories against the heat digit and A-BOX cabinet before order.

Key features:

• 3-ton packaged gas/electric rooftop; chassis ZGD036S5E

• 208/230V, 3-phase

• 108 MBH single-stage gas heat

• ECM blower

• R-454B refrigerant; factory RDS

• Scroll compressor cooling; gas heat section with accessible service compartment

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

• Full-perimeter base rail for rigging and transport

• Match curb, economizer, and flue/gas accessories to A-BOX cabinet