Units Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for Units products.

Tip: include the full model number printed on your Units label for the best match.

Units manuals

Latest posts, featured manuals, and retailer-linked manuals for this brand tag.

Precedent FIAPWRX301 Packaged Rooftop Units Installation Guide

September 29, 2025
Precedent FIAPWRX301 Packaged Rooftop Units Specifications Model Numbers: FIAPWRX301*, FIAPWRX302*, FIAPWRX303* FIAPWRX401*, FIAPWRX402*, FIAPWRX403*, FIAPWRXW01*, FIAPWRXW02* FIAPWRXW03* Capacity: 3 to 25 Tons Refrigerant: R-454B (A2L Flammable) Installation Only qualified personnel should install the unit. Ensure proper field wiring and grounding…

Alnor HRQ-2ZONE Zoning For Heat Recovery Units User Manual

September 3, 2025
Alnor HRQ-2ZONE Zoning For Heat Recovery Units Main information System description The SmartAIR air distribution system is based on the HRQ-2ZONE zoning T-connector, which divides the supply ventilation into zones based on the current demand. The communication between the Tconnector…