User guide

Installing the Drain Line

 The drain line must extend from the unit to an external drain or disposal site.

Do not use drain tubing any smaller than 12mm inside dimension on the unit.

 Splice the drain extension onto the drain outlet with a sort piece of 12mm

copper tubing and secure with claps.

 If no drain is available, use a bucket. Do not extend the drain below the rim of

the bucket. Empty the bucket periodically.

The Guardian Unit is provided with a built-in drain trap. The drain trap creates a water seal to

prevent air from backing up into the drain pan and causing the drain pan to overflow. Do not

create secondary traps in the external drainline.

Allow enough height for the drain line to function properly. If draining into a nearby sink, the

unit must be elevated higher than the rim of the sink in order for the water to drain by gravity.

Install with a 10mm per linear meter. Do not tie the condensate drain line directly into the

sanitary sewer system. See Accessories and Optional Equipment section for information about

the Condensate Pump.

Priming the Drain Trap

The internal drain trap primes itself automatically once the unit has run for a period of time and

after the unit cycles off. This is confirmed by water dripping from the drain.