Features of Air To Water Low Ambient Temperature Heat Pump EVI
Inverter Technology
.Refrigerant (refrigerant):
Refrigerant, in extremely cold environment, its heating efficiency
and energy saving efficiency are much higher than that of ordinary
air energy equipment.
2. Too cold defrost:
The refrigerant from the condenser is subcooled and throttled, and
then enters the evaporator to melt the frost layer on the
evaporator. Compared with the commonly used reverse cycle snow
melting, there is a fundamental difference.
①Defrost while heating normally, without affecting heating and
indoor load
②It can better adapt to the defrosting requirements of the fin heat
exchanger in different environments and different parts, and
achieve point-to-point precise defrosting
③Defrosting does not require any other energy, and the heating
efficiency is constant and constant
④Set in the light frost, then the frost will be removed, so that
the unit can run in a frost-free state
3. Single chip micro-control system:
The control system is meticulous in logic control, small in size,
light in weight, and strong in stability, and can respond to
various operating conditions and protective measures.
4. EVI jet enthalpy increase:
EVI jet enthalpy technology, bipolar compression, improve heating
efficiency, and can operate even under minus 25℃
5. Double-layer gold aluminum fins:
Precious metal nano double-layer coating makes defrosting faster.
Effectively improve the evaporation efficiency of air and rain
water, dust is not easy to accumulate, and can ensure heat exchange
at minus 25°C.
6. Triple sound insulation:
The whole equipment adopts triple sound insulation cotton, combined
with special shock-absorbing pads, equipment base stations and
customized fans, which can reduce the noise caused by operating
vibration to below 55 decibels. At the same time, it can
effectively prevent the host from contacting the outside
low-temperature air, and protect the stable operation of the unit
in a low-temperature environment.
7.360° frost-free operation:
Using chassis melting and heating technology, completely remove the
accumulation of frost, snow, and ice in important parts of the
equipment, and truly realize 360° frost-free operation
The three characteristics of Air To Water Low Ambient Temperature
Heat Pump EVI Inverter Technology intelligent defrosting technology
are as follows:
1. Quick defrost characteristics The unit can quickly defrost under
severe defrost conditions (3 minutes defrost).
2. Accurate defrosting characteristics The unit accurately judges
the frosting situation, the unit frost layer coverage rate is not
higher than 85%, the unit does not defrost, and the unit frost
layer coverage rate is higher than 85%, it can defrost by itself
and defrost thorough.
3. The nominal coefficient of performance (COPh) for heating units
with high energy efficiency characteristics is higher than
2.50kW/kW.
| Spec. | DKFXRS-16II/R |
| Nominal heating capacity at room temperature(kW) | 16.8 |
| Nominal heating at room temperature(kW) | 4.1 |
Low-temperature
nominal heating
capacity(kW) | 8.1 |
| Low temperature nominal heating(kW) | 3.5 |
| Maximum input power(kW) | 6.8 |
| Maximum current(A) | 12 |
| Power Specifications(Hz) | 380V 3N ~ 50 |
| Refrigerant/charge amount | R22/6000g |
| noisedb(A) | <65 |
| Water resistancekPa | <100 |
| Anti-shock level | I |
| waterproof level | IPX4 |
Caliber of inlet
and outlet | DN32 |
| Unit size (mm) | 1030x410x1390 |
| Unit Weight(kg) | 149 |
