Freeze Damage or Water Pressure will void your warranty. This comes from leaving unit in cold conditions as well as not properly draining, which creates a build up water that ruptures pipes.
In order to prevent this, you must take the following steps:
Ensure that the unit is plugged in and there is electricity being supplied at that outlet
YOU MUST ENSURE THAT THE PIPES ARE INSULATED WITH HEAT TAPE or YOU MUST KEEP THE WATER ON AT A TRICKLE TO ENSURE NO FREEZING INCURS
Your vent kit must have a back-flow preventer to ensure cold air does not backflow through to the heat exchanger and risk freeze damage.
ECCOTEMP SYSTEMS, LLC WARRANTY WILL NOT COVER RUPTURES IN ITS SYSTEMS DUE TO FROZEN WATER IN THE PIPES. It is the homeowner and/or installers responsibility to ensure that the incoming and outgoing water lines are properly insulated and protected against freeze.
Outdoor model numbers L5, L10 DO NOT have an antifreeze circuit installed. If the temperatures get at or below freezing, you must drain the unit by unscrewing the drain stem located at the bottom right of the unit AS WELL AS unhook the outgoing water line to ensure proper drainage from the heat exchanger.
Please click here for more information on our warranty policy.
You can also find out more information on protecting your water pipes during the winter months by visiting this website.
Below are some examples of what freeze damage looks like on the Portahot(L5).