Product descriptions:


Two-tube electronic constant temperature controller applies in commercial, industrial, medical and civilian buildings; can control the coil motor, hydrovalve which is located at the terminal of heating, cold air conditioning. Compare the measure temperature and setting temperature by electronic logical circuit, when relative temperature difference is more than 1oC, automatic start fans or electric valve, when ambient temperature is equal to setting temperature automatic close fans or electric valve.
Toggle switches are: power switch; running mode switch; FAN wind speed switch

Controlled device

Three-step wind speed fan coil, Three-wire electric valve, Two-wire electric valve, Electromagnetic valve or on-off-type wind valve , Three-step wind valve

HKD-002A
Two-tube electronic constant temperature controller

Characteristic:

* Thermistor temperature component
* Big driver plate+ toggle switches, concise operation
* Electronic circuit control, high precision temperature control
* Type 86 standards install cassette, convenient installation
* Direct terminal jumper wires choose fans to be controlled or not

Notes

Electronic controller, 220V/AC voltage must be at L, N terminals, used for electronic circuit, so must introduce zero line when embedded cables in engineering.
When system turn-off, switch at the OFF position, voltage is still on the 2ndterminal, ensure three-wire electric valve off.