Demand-Sensing Hot Water Recirculation Control
SMART aquastat RECIRCULATIon PUMP CONTROL for Homes with a dedicated recirculation loop
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The Smart Aquastat Control is an "On-Demand' smart hot water recirculating pump controller for homes with a Navien combi unit home heating system (or anyone who would rather control the recirculation pump based on the absolute temperature of the recirculation loop than the temperature differential) and a dedicated recirculation loop (if you don't have a dedicated recirculation loop check out our Smart Thermostatic Control) . It is designed to sense when hot water is drawn from any plumbing fixture and to run the recirculation pump until the water in the recirculation loop reaches the programmed temperature. The microprocessor-based design monitors the temperature of the water returning in the recirculation loop to ensure the water in the loop stays hot while hot water is being used.
The Smart Aquastat Control will work with all types of water heaters but was specifically designed to handle the issue where the Navien combi units will continue to add heat to the domestic hot water loop as long as the pump it running regardless of the output temperature set on the Navien device. This causes the original Smart Recirculation Control two temperature sensor design to never reach the set temperature differential keeping the pump running and the Navien combi unit will heat the water up to 150F+ instead of turning off the burner at the set temperature value. This control solves this problem by using the absolute temperature at the end of the loop to know when to turn the pump off.
To operate go to any faucet and turn the hot water on then off. The Smart Aquastat Control senses this minimal draw, checks the water temperature in the loop, and if necessary, starts the pump running. Within seconds the water loop is hot and you are able to draw hot water.
Because the Smart Aquastat Control uses the demand of hot water to know when to run the pump, it works even when your washing machine or dish washer need hot water. Unlike other on demand hot water systems, there is no need to install switches or sensors at each faucet location and run wires or maintain wireless transceivers.
The Smart Aquastat Control also has a set of "Smart Timers" TM that can be used to heat the recirculation loop on a schedule. The Smart Aquastat Control only runs the pump until the loop is heated up to the programmed temperature. Of course, outside of the timer periods the controller will still run the pump on demand. The "Smart Timers" TM are disabled if the controller doesn't sense a hot water draw within 24 hours. So if you go on vacation and forget to manually disable them, no worries, they will turn themselves of and re-enable as soon as it senses a hot water draw. The "Smart Timers" TM are set via your Android or iPhone smart device.
The Smart Aquastat Control will work with all types of water heaters but was specifically designed to handle the issue where the Navien combi units will continue to add heat to the domestic hot water loop as long as the pump it running regardless of the output temperature set on the Navien device. This causes the original Smart Recirculation Control two temperature sensor design to never reach the set temperature differential keeping the pump running and the Navien combi unit will heat the water up to 150F+ instead of turning off the burner at the set temperature value. This control solves this problem by using the absolute temperature at the end of the loop to know when to turn the pump off.
To operate go to any faucet and turn the hot water on then off. The Smart Aquastat Control senses this minimal draw, checks the water temperature in the loop, and if necessary, starts the pump running. Within seconds the water loop is hot and you are able to draw hot water.
Because the Smart Aquastat Control uses the demand of hot water to know when to run the pump, it works even when your washing machine or dish washer need hot water. Unlike other on demand hot water systems, there is no need to install switches or sensors at each faucet location and run wires or maintain wireless transceivers.
The Smart Aquastat Control also has a set of "Smart Timers" TM that can be used to heat the recirculation loop on a schedule. The Smart Aquastat Control only runs the pump until the loop is heated up to the programmed temperature. Of course, outside of the timer periods the controller will still run the pump on demand. The "Smart Timers" TM are disabled if the controller doesn't sense a hot water draw within 24 hours. So if you go on vacation and forget to manually disable them, no worries, they will turn themselves of and re-enable as soon as it senses a hot water draw. The "Smart Timers" TM are set via your Android or iPhone smart device.
