COOLWEX »HPG« GROUND/WATER heat pump



COOLWEX heat pumps enables rational heating in winter time and cooling in hot summer months, with temperature obtained from earth’s surface or depth.

 

Earth energy is the most frequently used energy source. COOLWEX ground/water heat pump transfers energy for heating from earth, where sun energy is accumulated.


All ground/water heating systems offer very wide range of heating and cooling, together with sanitary water heating.

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Types of GROUND/WATER heat pumps


COOLWEX »HPG« – ground/water heat pump with horizontal earth collector


If you have enough useful earth’s surface, we recommend the usage of horizontal earth collector.

Ratio between system investments and availability is the highest, therefore it represents one of the most rational
heating sources.
COOLWEX heat pump with horizontal earth collector uses constant earth temperature not only for heating but also for cooling.

Polyethylene pipes are laid horizontal 0,8 to 1,2 m under the ground in minimal distance 0,7 m beetwen two pipes. Inside pipes circulate mixture of water and glycol, which takes from the earth heat for evaporating the refrigerant.

Required area for horizontal earth
collector is 1.5 to 2.0 times bigger than “neto” heating surface in the house.
Size of required surface depends on heating demands, heat pump capaticy
and earth quality.

Amount of transfered energy on equal surface of collector, depends on earth moisture.

Ground/water system
(horizontal earth collectors)



COOLWEX »HPG« – ground/water heat pump with vertical geothermal probes


COOLWEX heat pump with vertical probe works constant and constantly achieves high COP.

It’s the perfect way for heating and
cooling in cases you don’t have the required size of earth surface, no groundwater or when the groundwater doesn’t reach required conditions.

Polyethylene pipes which guarantee
proper heat exchange are inserted into earth borings 100 m or maximal 150 m underground. Probe’s depth depends on heat pump capacity and on structure and quality of earth stratums.

COOLWEX vertical probe looks like a double U-pipe. Through inlet pipe flows cooled mixture from heat pump and through second pipe flows warmed
mixture back to the heat pump.

Dependent on earth quality, we need approximatly 12 to 15 m deep dual
vertical probe, to transfer 1,0 kW of heating energy.
Total depth of vertical probe can be calculated with heat transfer coefficient from 40 to 60 W/m of the probe.
Earth/water system
(vertical geothermal probes)




Ground/water heat pump		 All models have built-in compressor with newest »Copeland« Technology, plate heat exchangers SWEP, Siemens regulation and other components of the best in world recognized manufacturers.
All models use environmental friendly refrigerant R407 C.
All models have built-in heating circu-lation pump and heating source pump, 3-way switching valve and 3, 6 or 9 kW electrical heater in serial production.		 Serial Siemens regulator offers you to regulate 1 x mixing circuit, 1 x direct circuit, sanitary water heating, sun collectors, pool heating, cascade regulation of two compressors and much more…

We can also supply models with bigger heating capacities – HPG 25 and tandems HPGT from 30 to 106 kW.

 

Ground/water heat pumps »HPG« (55 °C)


Parameter
Model

HPG 06

HPG 08

HPG 10

HPG 12

HPG 15

HPG 18

HPG 22

Heating power (kW)

 6,0
-
5,3		 8,2
-
7,2		 10,1
-
9,0		 11,9
-
10,8		 14,8
-
13,2		 17,5
-
15,6		 22,3
-
19,7

Electrical power (kW)

 1,4
-
1,8		 1,92
-
245		 2,34
-
3,1		 2,76
-
3,75		 3,36
-
4,6		 4,10
-
5,4		 5,25
-
6,9

Cooling power (kW)

 4,6
-
3,5		 6,28
-
4,75		 7,76
-
5,9		 9,14
-
7,05		 11,44
-
8,6		 13,4
-
10,2		 17,1
-
12,8

Heating number COP

 4,3
-
3,0		 4,3
-
3,0		 4,3
-
2,9		 4,3
-
2,9		 4,4
-
2,9		 4,3
-
2,9		 4,2
-
2,9

Power supply (V/Hz)

 380/50 380/50 380/50 380/50 380/50 380/50 38 /50

Mixture flow primary side
(m3/h)

 1,8 2.2 2,6 3,0 3,5 3,7 4,2

Water flow sec. side
(m3/h)

 0,9 1,1 1,5 1,6 2,0 2,2 2,4

Total weight (kg)

 86 103 120 129 140 161 161

Datas are given with accordance to standard EN 255 under conditions B0/W35/W55 (earth temperature is 0 °C; heating water outlet temperature is 35 and 55 °C).
Housing dimensions for all models in the upper table are WxDxH: 600x580x1135 mm.
Minimal inlet mixture temperature on primary side is -7 °C, maximal heating water outlet temperature is 55 °C and permitted flow deviation is -15%.

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