Spa heater temperature control circuit

Details Spa heater temperature control circuit Spa heater temperature control circuit

1999-05-25

2000-07-04

Paschall, Mark

Electric heating

Heating devices

With current connection and/or disconnection means

219501, 219510, 219481, 219519, 4504, 361103, H05B 102

Patent

active

060842180

ABSTRACT:
A heater assembly for use with spas, hot tubs and the like, includes a control circuit which controls the application of electrical power to the heater. A control circuit controls application of power to the heater in response to a thermostat setting, the flow of water in the spa system and in response to a high limit temperature. When the high limit temperature is exceeded, electrical power to the heater is removed. Electrical power to the heater cannot be restored until power to the entire system is turned off and then back on. The control circuit is mounted on the heater and includes spring-loaded standoffs which maintain the temperature sensors in good thermal contact with the body of the heater.

REFERENCES:
patent: 4245148 (1981-01-01), Gisske et al.
patent: 4593177 (1986-06-01), Trostler
patent: 5585025 (1996-12-01), Idland
patent: 5932127 (1999-08-01), Maddox

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