Principle of Stainless steel high temperature 85 degree R410A hot
water air source heat pump
The basic operating principle of the cascaded high temperature air
source heat pump unit is based on the reverse
Carnot cycle principle. The working fluid system is divided into a
low temperature level circulation system and
a high temperature level circulation system. The low-pressure gas
is compressed into a medium-temperature and
medium-pressure gas by the low-temperature stage compressor, and
enters the intermediate heat exchanger to
condense into a liquid state to release heat. The liquid working
medium is decompressed and expanded by the
expansion valve and then returns to the fin In the heat exchanger,
the evaporation heat is absorbed again to
complete a low temperature cycle; at the same time, the liquid
working medium of the high temperature machine
absorbs the heat transmitted by the low temperature stage in the
intermediate heat exchanger and evaporates
into a medium temperature and low pressure gas, and the low
pressure gas is compressed by the low pressure
stage compressor. The medium-temperature and medium-pressure gas is
compressed into a high-temperature and
high-pressure gas by a high-temperature compressor, which is
condensed into a liquid state in a heat exchanger
to release heat to produce high-temperature hot water. In the
intermediate heat exchanger, the evaporation heat
is absorbed again to complete a low temperature cycle; through the
reciprocating cycle, the effect of producing
high temperature hot water at a low temperature ambient temperature
is achieved.
Strength of Stainless steel high temperature 85 degree R410A hot
water air source heat pump
High outlet water tem
No need for electric heating in winter, saving energy and
electricity. When the outdoor ambient temperature is as low as
-30°C, the
outlet water temperature of 85°C can still be maintained.
M o d u l a r d e s i g n , m e e t v a r i o u s n e e d s
With modular design, each system can realize the free combination
of multiple units, which can easily meet various building needs. If
one unit in the module combination fails,
the other units can operate normally, the backup operation
performance is superior, and the use is more assured
S t r o n g a d a p t a b i l i t y t o e n v i r o n m e n t a n d
h e a t l o a d
The unit can run stably at an ambient temperature of -35~50, and
the temperature of hot water can reach 90, which is
suitable for various heating demand applications.
I n t e l l i g e n t n o n - s e n s i n g d e f r o s t c o n t i
n u o u s h e a t i ng
Intelligent rapid non-sensing defrosting technology, greatly
reducing the number of defrosting and defrosting time. The
defrosting interval is extended to 7 hours at the longest, and the
heating continues without feeling hot and cold!
S u p e r l o w t e m p e r a t u r e h e a t i n g p e r f o r m a
n c e
Working principle: The two-stage cascade coupling system is divided
into a low temperature stage circulation system and a high
temperature stage circulation system, which reduces the compression
ratio of the unit operation and improves the low temperature
operation efficiency of the unit.
I n d o o r a n d o u t d o o r l i n k a g e c o n t r o l , i n t
e l l i g e n t o n e - h a n d c o n t r o l
The temperature controller of indoor fan coil unit and floor
heating is
controlled by linkage with the outdoor main unit. When any terminal
controller is turned on, the main unit is automatically turned on.
When
all terminal controls are turned off, the main unit is
automatically
turned off, and the system application is more energy-saving.
M u l t i p l e p r o t e c t i o n s e n s u r e t h e s a f e o p
e r a t i o n o f t h e s y s t e m
The host has 11 equipment self-checking protections, including
compressor exhaust temperature protection, system high and low
pressure protection,
double antifreeze and heat protection, fan motor overload
protection, frequent start limit protection, and power-off memory
recovery function to protect the
unit and use it safely.
Specification of Stainless steel high temperature 85 degree R410A
hot water air source heat pump
| Spec | KFXRS-25II/GW | KFXRS-52II/GW | KFXRS-102II/GW | KFXRS-150II/GW |
| voltage | 380V 3N～50Hz | 380V 3N～50Hz | 380V 3N～50Hz | 380V 3N～50Hz |
| Nominal heating capacity(hot water) | 25kW | 52kW | 102kW | 150kW |
| Nominal heating capacity input power | 8kW | 16.5kW | 33kW | 48kW |
| Low temperature heating capacity (hot water) | 18kW | 36.5kW | 72kW | 110kW |
| Low temperature heating input power | 6kW | 12kW | 24kW | 36kW |
| Maximum input power | 13kW | 26kW | 52kW | 78kW |
| Maximum operating current | 35A | 70A | 140A | 210A |
| Nominal heating capacity ( heating) | 21kW | 42kW | 84kW | 125kW |
| Nominal heating input power | 7kW | 14kW | 28kW | 42kW |
| Low temperature heating (heating) | 18kW | 36kW | 79kW | 108kW |
| Low temperature heating input power | 6kW | 12kW | 24kW | 36kW |
| Rated water flow | 3.5m³/h | 7m³/h | 14m³/h | 21m³/h |
| Refrigerant name/injection amount | R410A/R134a(5500g/4200g) | R410A/R134a(5500g/4200g)*2 | R410A/R134a(5500g/4200g)*4 | R410A/R134a(5500g/4200g)*6 |
| water side resistance | ≤55kPa | ≤65kPa | ≤85kPa | ≤95kPa |
| noise | ≤62dB(A) | ≤68dB(A) | ≤72dB(A) | ≤76dB(A) |
Allowable working pressure on exhaust
/suction side | 4.5MPa/0.15MPa | 4.5MPa/0.15MPa | 4.5MPa/0.15MPa | 4.5MPa/0.15MPa |
| High pressure/low pressure side maximum allowable pressure | 4.5MPa | 4.5MPa | 4.5MPa | 4.5MPa |
| Maximum working pressure of heat exchanger | 4.5MPa | 4.5MPa | 4.5MPa | 4.5MPa |
| size (L*W*H)mm | 780*820*1780 | 1550*780*1780mm | 1570*1550*1850mm | 2360*1550*1850mm |
| Weight | 160kg | 318kg | 630kg | 950kg |
| Anti-shock level | I |
| waterproof level | IPX4 | IPX4 | IPX4 | IPX4 |
| Connection | DN32(outside) | DN40(outside) | DN54(flange) | DN65(flange) |
| Unit Price usd/set | 3607 | 6725 | 13115 | 19680 |
Heating conditions: (hot water):
The ambient dry bulb is 20°C, the ambient wet bulb is 15°C, the
initial water temperature is 15°C, and the final water temperature
is 75°C.
Environmental dry bulb -7°C, ambient wet bulb -8°C, initial water
temperature 6°C, and end water temperature 75°C.
Terminal universal heating unit
Heating condition: (heating)
The ambient dry bulb is 7°C, the ambient wet bulb is 6°C, and the
effluent water temperature is 75°C.
Environmental dry bulb -7°C, ambient wet bulb -8°C, effluent water
temperature 75°C. | |
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