Installation
Installation Instructions & Downloads
Every install package in one place. Find the right instructions two ways: by your refrigerant, or by your equipment and application. Each package covers sizing, the three-connection install, adjustment, and start-up.
By Refrigerant
Download the package that matches your system's refrigerant. The 2025 A2L package covers both R-32 and R-454B; superseded versions are retired so only the current guide is in circulation.
By System Configuration
Some equipment configurations have a dedicated wiring and piping diagram. Pair it with the refrigerant package above.
Packaged RTUs and split systems follow the refrigerant package above · no separate diagram needed. For DOAS, make-up air, or reheat applications, an engineer details the install with you.
APR‑E Valve
The electronic APR‑E Valve has its own installation manual, covering mounting, wiring, sensor placement, and commissioning for discharge air temperature control. A Rawal Devices Engineer configures the control scheme with you.
Reference & Start-Up
General guidance that applies across every refrigerant and equipment type · handy on the truck and at commissioning.
Not sure which package you need? A complimentary Rawal Devices Engineering consultation sizes every valve for your equipment and refrigerant to ensure proper oil entrainment, and we stay with you from sizing through start-up. Start with the APR Sizing Tool, or call and an engineer picks up.
[email protected] · 800‑727‑6447 · rawal.com