Number of compressors*: 2
*Number of compressors equals the number of independent refrigerant circuits
Unit dimensions:
- Length: 3875 – 5575 mm
(depending on optional equipment configuration) - Width: 1800 mm
- Height: 2760 mm
Heating capacity:
MIDLINE
Medium-capacity reversible heat pumps
The MIDLINE heat pump series is developed to cover the heating demands of medium-capacity systems.
MIDLINE heat pumps can be designed as reversible units, enabling operation in cooling mode as well.
Accordingly, MIDLINE reversible heat pumps are a solution for covering seasonal heating and cooling demands.
A wide range of hydraulic equipment integration within the unit housing enables a more compact and simpler system layout.
MIDLINE heat pumps are equipped with a dual plate heat exchanger with advanced heat transfer characteristics
(SWEP True Dual technology), connecting both refrigerant circuits to the hydraulic circuit via one shared plate heat exchanger.
This design ensures unit compactness, the highest heat exchange efficiency, and reduces the required refrigerant charge.
The air heat exchangers are made of copper tubes with aluminum fins.
Axial fans with EC motors enable variable speed control, achieving exceptionally high operating efficiency.
Depending on the required heating capacity, MIDLINE heat pumps use semi-hermetic reciprocating or hermetic scroll compressors,
designed and certified for operation with flammable refrigerants.
For precise capacity control and energy savings, compressors use frequency inverters,
while the overall unit operation is managed by an advanced controller.
The units are intended for outdoor installation.
Each MIDLINE unit is factory tested and delivered pre-charged with refrigerant and oil.
Conformity assessment is carried out in accordance with the European Pressure Equipment Directive (PED) 2014/68/EU.
The unit complies with all safety and environmental requirements.
Number of compressors*: 2
*Number of compressors equals the number of independent refrigerant circuits
Unit dimensions:
- Length: 3475 – 5175 mm
(depending on optional equipment configuration) - Width: 1600 mm
- Height: 2448 mm
Heating capacity:
Number of compressors*: 2
*Number of compressors equals the number of independent refrigerant circuits
Unit dimensions:
- Length: 3875 – 5575 mm
(depending on optional equipment configuration) - Width: 2350 mm
- Height: 2783 mm
Heating capacity:
GENERAL
- Powder-coated galvanized steel housing, corrosion and weather resistant, standard color RAL 7035
- Removable housing panels
- Anti-vibration mounts
- Compressor compartment located in a separate protective enclosure within the housing
- Pipe insulation to prevent condensation
- Safety strategy — refrigerant leak detector combined with an ATEX fan
ELECTRICAL
- Main power switch and phase monitoring relay
- Electrical protection for all components
- Advanced Siemens Climatix microprocessor controller
- Touchscreen display for monitoring and controlling unit operation
- Electronic expansion valve for precise refrigerant flow control
- Communication protocols: Modbus TCP/IP, Modbus RTU or BACnet IP
- Dry contacts for alarms
- Cabinet lamp with socket
- Electrical cabinet heater (250 W)
- Remote monitoring (Siemens Cloud)
HYDRAULIC CIRCUIT
- Stainless steel hydraulic circuit piping
- Hydraulic connection via a free stainless steel flange
- Air vent valve
- Drain valve
- Flow switch
- Thermal insulation of piping
GENERAL
- Custom housing color
- Low-noise version with additional sound insulation
- Safety valves
- Waste heat recovery (“heat recovery”) via a series-connected plate heat exchanger (condenser) — for reversible heat pumps only
ELECTRICAL
- Electrical energy meter (for the entire unit)
HYDRAULIC CIRCUIT
- Shut-off valves (butterfly type)
- Primary-side circulation pump
- Two primary-side circulation pumps (duty + standby), without integrated buffer tank
- Integrated buffer tank (2 connections) or hydraulic separator (4 connections) with primary-side circulation pump
- Secondary-side circulation pump (if a 4-connection tank is selected)
- Hot-side circulation pump (only if waste heat recovery is selected)
- Hydraulic circuit upgrade using hydromodule