Retrofit smart components for use in a fluid transfer system
First Claim
1. A retrofit for a system using a fluid to transfer thermal energy, the system utilizing a thermostat to regulate a temperature associated with a terminal, the retrofit comprising:
- a return line temperature sensor configured to measure a temperature of a fluid leaving a terminal; and
a circuit configured to;
receive a signal from a thermostat, the signal commanding an intended degree of opening or closing of a modulated valve;
receive a temperature from the return line temperature sensor;
determine whether the temperature is greater than a maximum set point or less than a minimum set point;
modify the signal from the thermostat into a modified signal if the temperature is greater than the maximum set point or less than the minimum set point;
allow the signal from the thermostat to be sent to the modulated valve when the signal is not modified;
allow the modified signal to be sent to the modulated valve if the signal is modified; and
allow the signal from the thermostat to be sent to the modulated valve after sending the modified signal when the temperature crosses back over the maximum set point or the minimum set point.
1 Assignment
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Accused Products
Abstract
According to an embodiment of the disclosure, a retrofit for a system using a fluid to transfer thermal energy in a system that utilizes a thermostat to regulate a temperature associated with a terminal is provided. The retrofit includes a return line temperature sensor configured to measure a temperature of a fluid leaving a terminal; and a circuit. The circuit is configured to: receive a signal from a thermostat, the signal commanding a modulated valve to open or close; receive a temperature from the return line temperature sensor; determine whether the temperature is either greater than a maximum set point or less than a minimum set point; and modify the signal from the thermostat if the temperature is either greater than the set point or less than set point.
24 Citations
14 Claims
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1. A retrofit for a system using a fluid to transfer thermal energy, the system utilizing a thermostat to regulate a temperature associated with a terminal, the retrofit comprising:
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a return line temperature sensor configured to measure a temperature of a fluid leaving a terminal; and a circuit configured to; receive a signal from a thermostat, the signal commanding an intended degree of opening or closing of a modulated valve; receive a temperature from the return line temperature sensor; determine whether the temperature is greater than a maximum set point or less than a minimum set point; modify the signal from the thermostat into a modified signal if the temperature is greater than the maximum set point or less than the minimum set point; allow the signal from the thermostat to be sent to the modulated valve when the signal is not modified; allow the modified signal to be sent to the modulated valve if the signal is modified; and allow the signal from the thermostat to be sent to the modulated valve after sending the modified signal when the temperature crosses back over the maximum set point or the minimum set point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification