Technical parameters: 

 Item Item \ Model Model BKZ02D BKZ03D BKZ05D BKZ10D BKZ20D 
 Rated heating capacity Reted heating output 7.5 11.8 19.8 38 76 
 Input power Input power (KW) 1.7 2.8 4.7 9.5 19 
 Voltage Voltage (v) 380V/50HZ 
 Factory water temperature Hot water temperature 55 ℃ (40-60 ℃ adjustable) Default: 55 ℃ (40-60V adjustable) 
 Rated hour water production Rated output water quantity (L) 180 290 480 960 1920 
 Form flexible and efficient compressor Compressor Type Scroll Effective flexible vortex type 
 Quantity Quantity 1 1 1 2 2 
 Panasonic Panasonic brand Brand Copeland USA Guluin U.S. 
 Form efficient heat exchanger Heat Exchanger type spiral tube heat exchanger Effective Spiral Double Pipe Heat Exchanger 
 Cold water inlet pipe 
 Inlet water pipe diameter DN25 DN25 DN25 DN40 DN65 
 Hot water pipe 
 Outlet water pipe diameter DN15 DN15 DN20 DN25 DN25 
 Circulating water pipe 
 circulation pipe diameter DN25 DN25 DN25 DN40 DN65 
 External rotor fan motor Form Draught type steel blades Extemal Rotor Motor Steel Leaves 
 Power (W) Power 100 150 230 230 × 2 500 × 2 
 Unit Weight Weight 68 100 180 280 630 
 Control Mode Control Mode microcomputer central processor control (wire) Microcomputer central processor (linear control) 
 Protection Protection Function unit high-voltage protection, pressure protection, overload protection, flow switches, frost protection High pressure protection.low pressure protection, phase failure, reversed phase, water current switchouerpower protection 
 Water conditions: cold water temperature 15 ℃, ambient temperature 20 ℃. Hot Water Work Conditions: cold water temperature 15 ℃, environment temperature 20 ℃ 
 Specifications listed in the table, subject to change without notice. Units above diagram is for reference only, actual unit form the actual phone Spercifications are subject to change without prior notice.The appearance is only for reference, please see the real porduct for detailed information. 

 Dimensions: 
 Item Item \ Model Model BKZ02D BKZ03D BKZ05D BKZ10D BKZ20D 
 Length A Length 530 710 810 1440 1610 
 W B Wide 530 710 810 800 1100 
 High C Height 750 900 1100 1400 1730 
 Positioning holes 
 installation place D 300 450 500 800 1280 
 E 300 450 500 500 780 
 Out of the water holes F 200 290 300 310 310