Installation Guide UNO UL 110v V1.1

If connecting to the soil pipe this can be done via a strap on boss or a reducer fitted to the 4”
(110mm) pipe. Alternatively a 2” (50mm) swept T can be used to form the waste output of the
machine, a 2” (50mm) to 7/8” (21.5mm) reducer should be fitted to accept the overflow pipe.
Overflow non return system
The overflow pipe must have a non-return system to prevent the back flow of gas from the soil pipe.
Local regulations will dictate which type is used; common methods are “tun dish” and “non-return
valves”. If using a non-return valve, ensure the device is fitted at least 300mm below the top of the
water tank.
Copyright © 2015 DDC Dolphin Ltd Page 23 of 36 November 15 IGUL-UNO-V1.1