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word:  Ground source heat pump 28KW for house heating and hot water, CE R410A

 

Ground Source Heat Pump
Heat pump model:	CWR-28XB
Heating capacity:	28KW
Hot water supply:	600L / Hour
Input power:	6KW
Input current:	22A(220V) or 10.2A(380V)
High COP:	4.67
Power source:	220V/1N/50HZ or 380V/3N/50HZ
Noise level:	< 55dB(A)
Unit weight:	210Kg or 275KG
Compressore:	Scroll Sanyo, Copeland, Daikin
Refrigerant:	R410A, R417A, R407C
Water source side:	High efficient tube in tube heat exchanger
Hot water side:	High efficient tube in tube heat exchanger
Test condition:water source side inlet water temp is 15°C, initial hot water temp is 15°C and ending temp is 55°C.

 

Ground source heat pump installation method

Horizontal loops

Pipes are laid horizontally in trenches. The depth of the trenches will vary according to the design and soil condition, but is usually 1.2 to 2m deep to assure year round heat source constant temp. Horizontal loops require much more surface area than vertical loops.

Trenches will need 50-80 metres of pipe per kilowatt (kW), with at least 5 metre distance between trenches with coils.

Note, however, this will depend on a number of factors, including ground conditions.