Motorhome Tips on Hydro-Hot Hydronic System

Keepin’ Yourself in Hot Water….the Hydro-Hot Hydronic Heat System

Over the years the now former CC, LLC service team shared a great info dealing with ‘not enough hot water', shared at both at rally seminars and in the former Destinations magazine.

Here We Offer Thanks to Pete Kaye, former CC,LLC Service team member, for this info -- It is still a great refresher.

LOW DC SUPPLY VOLTAGE

The Indicator light on the electronic control panel lights Red when the DC voltage level is too low for the unit to operate properly. When this faul happens, the burner doesn’t start when the “diesel” switch in the coach is activated--even though the Green light on the switch panel is lit. Verify there is adequate supply voltage to the controller (see your Hydro-Hot manual), then clear the fault by using a thin, straight, non-conductive object to press the recessed Low Voltage Reset button located on the electronic control panel.

INCOMING WATER TEMPERATURE

Let’s say we want a constant output of 1.5GPM at 115 degrees F. If the water coming from the fresh water tank into the unit is 60 degrees, the unit is rated to deliver this. However, if the incoming water temperature is lower, you may expect a decrease in hot water quantity (GPM) or temperature. Keep in mind, ambient air temperature in the fresh water tank bay has a direct effect on the output of the heating unit.

COLD WATER MIXING

If the hand-held shower in the plumbing bay is turned off at the shower head but the valves for both the hot and cold water are left open, some inadvertent mixing may occur.

TOO MUCH DEMAND

Shower heads and faucets all place demand on hot water supply especially when used simultaneously. The flow rating for just a shower head inside the coach can be as much as 2.5 GPM. When in use, this alone can consume all the hot water available when showering at average temperature. When the water temp demand is increased, or when the water tank bay is cold, the capacity of the system can be exceeded.

 

The original manufacturer Country Coach, LLC closed its doors in 2009. Today there are several great service centers in the Lane County area to attend to your service needs, including Premier RV of Oregon, Oregon Motorcoach Center and more. Check the Country Coach Friends Club's Member Benefits list online to learn more