products features:
* Precision twin-screw compressor,high efficiency and reliable
* Dry evaporator,low refrigerant charge
* Color touch-screen human -machine interface
* Industrial PLC micro-computer control 
* Self-adaption energy regulation 
* Wide outside temperature regulation range
* Perfect Breakdown protection 
products specification:
* Standard:GB/T18430.1-2007
* Refrigerant:R22/R407C
* Refrigerant medium:water/glycol water
* Evaporator max water pressure drop:1.0MPa
* Pipe Connector:Bayonet（below DN200），Frange(above DN200)
* Power supply： 380v/3p/50Hz
* Allowable voltage fluctuate: ±5%
* Allowable frequency fluctuate: ±2%
* Energy regulation way:step by step 
* Breakdown protection:high and low pressure protection,air discharge protection,oil level protection,waterflow protection,reverse and lack phase protection,chilled water anti-freezing protection,cooling water overheat protection 
* Packing：plastic film/normal wooden/fumigation wooden
Remarks: 
1.Nominal conditions: chilled water inlet temperature12℃,outlet temperature 7℃,cooling water inlet temperature 30℃,outlet temperature 35℃,dirt coefficient of evaporator:0.018m2*℃/kw;dirt coeffcient of conderser:0.044m2*℃/kw
2.Temperature term: chilled water outlet temperature 5℃~15℃,cooling water inlet temperature 19℃~33℃
3.We use thermostatic expansion valve for 200A-1040A,and use electrical expansion valve for 1140A-2400A
Special requirement ,pls contact Shang Dasen Industrial Co.,Ltd.