GSP - Polyvalent full inverter geothermal heat pump

GSP is a water-condensed modulating and polyvalent heat pump for residential use. It obtains heating or cooling energy from a water source (above ground or acquifer) or from a closed-loop geothermal system, allowing alternatively to heat and cool the whole dwelling and to produce Domestic Hot Water in priority or in total heat recovery when in cooling mode.

TECHNICAL FEATURES:
• Scroll or twin-rotary inverter compressors with modulating speed and BLDC motors technology (Brush Less Direct Current).
• Electronically controlled Electric expansion Valve (EEV).
• Source-side, DHW-side and User-side pumps with permanent magnets and variable speed motors to adapt flow-rates to actual operating speed and allow significant savings on pumping costs.
• Brazed plates evaporator which operates in flooded conditions (optional, recommended in combination with geothermal boreholes).
• Double hydraulic circuit: space heating/cooling circuit and DHW circuit, independent from each other.
• DHW circuit in priority, or in total heat recovery when in cooling mode.
• AISI 316 Stainless steel high efficiency brazed plate heat exchangers
• Advanced electronic management allowing to respond adequately to the needs of partial loads for optimal operation in such conditions.

FLOODED EVAPORATOR TECHNOLOGY
A heat exchanger is said “flooded” when the exchange surface is completely covered by the refrigerant in phase change. The purpose of this innovative technology (given the small powers
involved) is to avoid the evaporator to overheat, bringing this phase out of it.
Compared to a dry expansion heat exchanger, the advantages are:
• Improved heat exchange on refrigerant fluid side;
• More uniform supply of evaporator conduits;
• Less temperature difference between refrigerant and fluid to be cooled
In practical terms, a flooded evaporator allows to reduce the length of geothermal borehole arrays by up to 30%. This results in reducing the investment costs of the system, where the drilling costs are the most considerable on the total sum. Alternatively, this technology allows reducing the number of applications that require the use of glycol solutions in their geothermal systems, moreover reducing the operating costs by up to 12%.