This is to address the issue of deactivation in the Marey gas tankless water heaters in warmer climate areas such as S. California, Florida, Texas and Arizona. Deactivation is an issue when the incoming cold water to the Marey gas tankless is warmer than normal and the unit produces hotter water than normal and then when trying to add cold water to regulate the temperature the unit shuts off and "deactivates". Turning the hot water tap off and then back on would reignite the unit but then the user would be faced with the same situation. There are a couple options for addressing this.
1. The user would want to adjust the Marey gas tankless to the "summer" setting which will give the burner it's lowest BTU burn point.
2. If the user has the unit set to the summer setting and is still experiencing hotter water than normal then they would want to increase flow. Increasing flow by turning the flow control knob to its max flow will increase flow through the heater keeping the unit active and giving a little cooler water and the end user will not have to add in so much cold water to cool the water down.
For further instructions on how to combat deactivation in warmer climate please call Marey Technical Support at 855-627-3955.
