All in one heat pump is designed for domestic sanitary hot water. As a lovely equipment, it could be put indoor. It is with 3 times higher efficiency than that of gas boiler or electrical heater and it can also be combined with solar heating system. Therefore this could reduce costs for the users in a big way.
Fetures:
■ 1.5kw Electrical Heating Element
■ 4 Water Temperature Security Protections
■ Safe, Reliable & Eco-friendly
■ TP Valve for More Guarantees
■ Centrifugal Fan Motor
■ External Expansion Valve
■ Magnesium Anode
Specification:
Model |
Unit |
DHW-28-150L |
DHW-28-200L |
DHW-28-250L |
DHW-28-300L |
Heating capacity |
kw |
2.8 |
2.8 |
2.8 |
2.8 |
COP |
W/W |
4 |
4 |
4 |
4 |
Water tank volume |
L |
150 |
200 |
250 |
300 |
Rated heated Water output |
L/h |
60 |
60 |
60 |
60 |
Rated outlet water temp. |
℃ |
55 |
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Max outlet water temp. |
℃ |
60 |
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Rated power input |
W |
800 |
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Rated current |
A |
3.8 |
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Electric heator power |
W |
2000 |
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Electric heator current |
A |
9.6 |
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Power supply |
V/Hz/Ph |
220-240V/50Hz/1Ph |
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Compressor type |
|
Rotary |
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Number of Compressor |
|
1 |
|||
Heat exchanger type |
|
External coil |
|||
Throttling device |
|
External expansion valve |
|||
Fan type |
|
High efficiency and low noise centrifugal fan |
|||
Fan discharge |
|
Top with 5m exhaust pipe |
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Fan quality |
|
1 |
|||
Fan input |
W |
200 |
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Fan speed |
RPM |
920 |
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Ambient temperature |
℃ |
0℃-43℃ |
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Refrigerant |
|
R140a |
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Noise in 1 meter distance |
dB(A) |
43dB(A) |
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Water pipe connection size |
mm |
G3/4” |
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Cabinet |
|
Galvanized powder coated steel |
|||
Low pressure protection system |
|
Yes |
|||
High pressure protection system |
|
Yes |
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Automatic defrosting system |
|
Yes |
|||
Product Net Weight(kg) |
kg |
81 |
87 |
93 |
103 |
Product dimensions |
mm |
Φ560*1500 |
Φ560*1700 |
Φ560*1970 |
Φ650*1800 |
Testing condition |
Ambient temp.(DB/WB)=20℃/15℃; Water temp.(Input/output)=15℃/55℃. |
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Working Principle
At the beginning of the first phase the refrigerant is cold low pressure liquid.
1. The refrigerant passes into the evaporator and heat energy from the outside air passes over the evaporator causing the refrigerant to increase in pressure and change to warm vapor.
2. This warm vapor then enters the compressor where its temperature increase as a result of the compression process and turns into a hot gas.
3. The hot refrigerant gas is then condensed as it passes across one side of a plate heat exchanger, and this is transferred via the primary water circuit to heat up the water tank.
4. Despite dropping in temperature, the cool vapor still has a high pressure and to reduce this pressure the vapor passes through an expansion valve. This cause the pressure to drop and the temperature lowers, returning the refrigerant to its initial state of cool low pressure liquid.
Installation Diagram
