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SL1600-HP Heat Pump Heater Controller
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Advantages
 

Built-in phase sequence/phase loss protection; Built-in compressor current detection,Built-in two way e-expansion vavle; reserved MODBUS-RTU RS485 communication interface.
Compatible A/C types
 

1~2 compressors air cooled heat pump heater
Function
 

*Built-in phase sequence/phase lost protection;
*Two steps anti-freeze and intelligent defrost;
*Smart water level detect, auto refil water;
*Trial run and off memory function;
*Condenser fan is directly controlled without additional pressure control switch;
*Support auto restart function and terminal chain control;
*With timer ON/OFF, service remind and lock function
*Compressor delay function and auto balance spoilage;
*Compressor motor protection, high/low pressure protection;
*Built-in compressor current detection, no need overload protector;
*High/low temperature protection for chilled water-out/in;
*High/low temperature protection for cooling water-out/in, and probe lost protection;
*Strong stability,0.15-80MHz interference rejection, 4KV high voltage and surge resistance;
*SMT technology, 48 hrs burn-in test for ensuring quality;
*MODBUS-RTU RS485 Widely-used communication protocol, up to 1km max distance (Gateway Free);
*Adopt differential communication mode with checksum between control board and control pane, keep constant,   stable synchronous communication;
*PCB Surface painted with CRC, avoid leakage, short circuit, and erosion from acid/ alkali/ alcohol/ humidity/salt spray;
*Featured with tension and torsion resistance probe, long working life;
*Wide voltage range, avoid misoperation caused by voltage fluctuation;
*Control logic implemented on the control board.

Modifiable parameter
 

Auto restart, setpoint emendation, temperature settpoint temperature differential, Load/unload setpoint, compressor low pressure delay, water flow delay, defrost temperature differential, defrost energize/de-energize temperature/cooling tower fan energize/de-energize temperature, defrosting turnoff temperature/cooling tower fan turnoff temperature, minimum defrost Interval/cooling pump energize time, maximum defrost Interval/cooling pump delay de-energize time, heating condenser fan tenergize temperature/cooling water-out high temperature protection, cooling condenser fan de-energize temperature/cooling water-out low temperature protection, forced defrost, compressor overload, number of compressor, temperature control modes, liquid circuit valve delay time, four-way valve energize/de-energize, digital input normal on/off.
Fundamental parameter
 

*Controller dimension: 187mm×131mm, fixed by 4 fixing holes (Hole dia:4.5mm), transverse hole distance 159.3mm,   vertical hole distance 114mm;
*12 digital inputs;
*12 relay control outputs;
*6 analogue inputs :outlet/inlet water temperature, 1# frost temperature, 2# frost temperature, ambient temperature;
*2 Current analogue inputs: first compressor current, second compressor current;
*Suitable for SL300 Text HMI, SL100 Color character HMI;
*Relay power output: 250V/5A;
*Transformer power output: 12V/1A.
 
 
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