digital water pump controller

1 Temp display and control 2 Automatic defrosting controlling 3 Automatic replenishment feature 4 Exhaust temp protection

Main Function and Technique Index

The controller is the special controller for engineering heat pump water heater, it contains 4 temperature sensors (water temperature, outdoor temperature, exhaust temperature, general temperature switch sensor), 5 controlling output (compressor, defrost, fan, water compensating valve, general temperature switch), 1 water level signal input (used for showing the water is full) and 1 alarm signal input(used for high and low pressure protection). Main functions:

1 Temp display and control: display tank temp and outdoor temperature, and the temperature inside the tank are controlled at the set temperature.

2 Automatic defrosting controlling: It has defrosting controlling logic of heat pump optimization design, and can defrost efficiently, in order to ensure that the outdoor machine can run normally at low temp. You can set several kinds of defrost methods: four-way valve defrost, bypass valve defrost or electric heat defrost.

3 Automatic replenishment feature: Intelligent replenishment program, just need one water level switch signal, as far as possible to ensure replenishment process does not affect the water temperature to ensure that as much hot water in tank, and to ensure that the units in the replenishment process as smooth running as possible, to reduce unnecessary unit starts and stops.

4 Exhaust temp protection: When the exhaust temp is too high, the controller turns off the unit and generates alarm signal, and it can control the outdoor fan according to the exhaust temp.

5 External alarm: one external switch valve alarm signal input, it can be set to 3 modes: always open, always closed or forbidden, and you can set the times and time of the auto recovery.

6 Universal temperature switch: All the way of universal temperature switch contains a temperature sensor and one output signal, according to the temperature control of the output signal, the temperature point and action can be set. The typical application is used to switch the dual capillary system, or as a pipe temperature cycle control

7 Running in different period of time: The controller has two modes: “Auto” and “Econ”, in “Econ” mode, the controller can set 3 period of time; it can only heat in these periods of time.

8 Trial time limit: It can be set up a trial time. If controller cumulative work time exceeds the setting time, it will stops working; and continue working after relievingthe trial time limit.

9 Others: Real Time Clock, On-off Memory when the power is off (Can be set), Direction of four-way valve can be set, Compressor start delay protection, Sensor Error Alarm, High Temperature Alarm, Add Fluorin, and so on .

Main Technique Index:

Range of Temperature Display: -50~150°C

Range of Temperature Set: 0~100 °C the range can be set.

Power Supply: 220V±10%

Operation Environment:Temperature -10°C~50°C,humidity ≤85%.

Output Load Capability: Compressor and Defrost 10A/250VAC,Others 2A/250VAC

Temperature Sensor:NTCR25=5kΩ,B(25/50)=3470K

Executive standard:Q/320585 XYK01-2004(NA8651-HTDX)

 production process

digital water pump controller