Gold Member Since 2017
Audited Supplier
Shanghai Venttech Refrigeration Equipment Co., Ltd.

Heat Pump, Air to Water Heat Pump, Chiller manufacturer / supplier in China, offering Residence Air to Water Heat Pump, Ss304L Floorstanding Flatbed Dry Air Coolers, R410A Packaged Rooftop Air Conditioner Unit and so on.

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Supplier Homepage Product Heat pump Residence Air to Water Heat Pump

Residence Air to Water Heat Pump

Purchase Qty.:
(Pieces)
1-3 4+
FOB Unit Price: US $1,500 US $1,300
Purchase Qty. (Pieces) FOB Unit Price
1-3 US $1,500
4+ US $1,300
Get Latest Price
Production Capacity: 2000PCS/Month
Transport Package: Wrap Film
Payment Terms: T/T

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Basic Info
  • Model NO.: SLA20D
  • Working Medium: Freon
  • Trademark: Venttech
  • Origin: Shanghai, China
  • Certification: RoHS, ISO9001, CE
  • Heat Source Type: Air Source Heat Pump
  • Specification: Customized
  • HS Code: 8418692090
Product Description
function description
1.Heating
1.1 hydronic heating 
1.1.1 flowsheet of hydronic heating
power on→water level switch test→ water pressure switch test→cycle water pump work(16s)→     water flow switch test→fan work(6s)→compressor work(when low water level disconnect,cool water supply switch on, compressor,fan,cycle water pump work.
1.1.2,Cool water supply controlling
(1)when low water level switch disconnected, cool water supply switch on and begin supply water, cycle water pump startup, fan off, compressor off.
(2)when low water level switch on, cycle water pump on, fan on,compressor on, hydronic heating begin. meanwhile water supply valve begin to supply water according to the preset water supply temp L7.:if water tank temperature≥L7,water supply valve open,supply water;if water tank temperature≤L7-5degree,water supply valve close,stop supplying water.
(3)after high water level close up, stop supplying water. If high water level has closed up before, when it disconnect again, not supply water at once, it will supply water until middle water level disconnect.
Notice::if L7=20ºC,water supply is not controled by water temperature.
1.1.3,water temperature controlling
Range of water temperature controlling:35-60ºC,
1.1.4 Running controlling
 
1.2 Instantly heating
1.2.1 Power on→water pressure switch test→open water supply valve to supply water→fan on→compressor on, after high water level connected, water supply valve close, if water tank temperature doesn't reach preset temperature, cycle water pump on, water was heating to preset temperature circularly, then power off.
1.3 Supply water controlling
(1)when high ,middle,low water level switches all disconnect, water supply valve supply water, then check water pressure switch, if water pressure switch is closed up, then fan on, compressor on,  thermostat on, begin to supply water untill high water level switch closed up, thermostat and water supply valve close ,stop supplying water.
(2)if high water level switch have been closed up, when the high water level switch disconnect, it will not supply water at once, it must untill middle water level disconnect. Then water supply valve on, fan on, compressor on, thermostat on.
1.4 Water temperature controlling
Range of water temperature controlling: 35-65ºC, when preset temperature reach 60ºC, if want to set the water temperature >60ºC, press key over 6s , when hearing a "toot" voice , move away finger , press key again, now the max water temperature can be set at 65ºC. 
 
ModelSLA20DSLA30DSLA50DSLA60DSLA100DSLA200DSLA300D
Input power (KW)1.842.984.65.49.21922
Heating capacity (KW)71218.421.636.87288
Cooling capacity(KW)58.81316275665
Hot Water supply(L/H)16028040050080016002000
Power supply220V/50Hz/1ph 220V/50Hz/1ph 380V/50Hz/3ph380V/50Hz/3ph
Rated current (A)813/6912183540
Outlet water temp(ºC) 55/60
Water flow L/H2000360055007000110002200025000
Pipe SizeDN25DN25DN25DN32DN32DN50DN50
Water pepe of InterfaceInternal thread(copper)
Dimension(mm)1140*360*5501120*490*7901120*490*12601120*490*12601450*760*10601990*980*20801990*980*2080
Packing dimensions (mm)1210*400*7101200*520*8701200*520*14401200*520*14401520*800*12302060*1060*22302060*1060*2230
Weight (KG) 78120162170320640660
Leve of securityIP×4
Electric shock protection grade1 Grade
Noise (Db)≤40 ≤50≤55≤60≤70≤75 ≤75 
RefrigerantR417A/R407C/R404A//R410A/R134A
CompressorPanasonicPanasonic / CopelandCopeland
Condenser: Double-pipe heat exchanger, Evaporator: Finned heat exchanger, Throttle unit: Electronic expansion valve. Body: Spray coating.
Test condition: Dry bulb 20ºC,Wet bulb 15ºC, Input water temp 15ºC, Output 55ºC
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