Viqua Arros UV Lamp Selection Guide

The Viqua Arros UV systems come in three different sized models: the Arros 9, Arros 15, and Arros 22. Each of these three systems has a unique replacement lamp. To determine the lamp that you need there are two techniques you can use:

• read the sticker on the side of steel chamber
• use the chamber length to determine the required lamp

Double-checking the lamp you need is important with the Arros system. The Arros controller needs to be "told" what lamp it is being used with upon installation. If this step is skipped or done incorrectly by the installer, the system may display the wrong lamp model when it tells you to replace the lamp.

The following chart shows the system model name, corresponding replacement lamp number, and the length of the steel chamber for each system. If you can't read the sticker on the chamber, or have any doubt about which replacement lamp you need, please use the steel chamber length as your primary guide:

Viqua Arros Chamber Length

The "chamber length" for a Viqua Arros system is shown in the image below. Use this chamber length as a double-check to know if you're ordering the correct Viqua Arros replacement lamp.