This product is the result of many years of experience and in-depth engineering research, and it is built using top quality materials and advanced technology. In addition, the CE mark guarantees that our devices fully comply with the requirements of the European Machinery Directive in terms of safety. UNI EN 14276 Seamless, round copper tubes for air conditioning and refrigeration Pressure equipment for refrigeration systems and heat pumps.
The product complies with Directive 97/23/CE Total Quality Guarantee procedure (form H) with certificate No. 5 issued by the notified body n.1131 CEC via Pisacane 46 Legnano (MI) - Italy The person authorized to to constitute the technical file is: / The person authorized to prepare the technical file is: / La personne autorisée à constituer le dossier technique est : / Die Person behrechtig, die technischen Unterlagen zusammenzustellung:.
General warnings
Preservation of the documentation
Installation
Warranty
Warnings regarding safety and
Product identifi cation
Technical plate position
Presentation
System examples
Confi gurator
Description of components
- Structure
- Cooling circuit
- Main operations
- Water features
- Components that can be confi gured
- Dhw side hydraulic components
- Safety and control
- Electric control board and regulation
The unit is the new controller for controlling the water-cooled reversible units; the new PGD1 8-digit display is clearly legible, while the icons provide immediate visibility of the machine's operation. The electronics also integrate a series of protection algorithms with the aim of preventing any damage to the system's main components. To prevent breakage of the plate heat exchanger due to freezing water, 3 antifreezes, "geothermal, system and zones", are foreseen, which are contained inside.
The microprocessor also predicts compressor shutdown whenever the temperature detected by the heat exchanger outlet probe is lower than the antifreeze set. Condensation control is managed by modulating the speed of the pumps with phase cutting systems or inverters, a two-way modulation valve and pump ON/OFF. To prevent breakage of the plate heat exchanger due to the freezing of the water it contains, the microprocessor predicts the shutdown of the compressor if the temperature detected by the outlet probe of the heat exchanger turns out to be less than +4°C.
The intervention of this alarm determines compressor and blocking, but not the pump, which remains active. The integration source is activated when the temperature of the water detected by the sanitary probe is below +4°C and switches off at +7°C.
Accessories
Accessories compatibility table
The stated data refers to the standard version [°]; for different versions, consult the "MAGELANO" selection program. 2] Power of voice; Aermec determines the sound power value based on measurements taken in accordance with standard 9614-2, in accordance with Eurovent certification. 3] Sound pressure in an unlimited range in a reflective plane (direction fact. Q=2), 1 m away from the outer surface of the unit, in accordance with ISO 3744.
4] Sound pressure in an unlimited range in a reflecting plane (direction fact. Q=2), 10 m away from the outer surface of the unit, in accordance with ISO 3744.
Operating limits
Design data
Performance and absorption that
Pressure drops
The tables indicate the correction to be applied to the pressure losses due to variation of the average temperature. The minimum flow rates are calculated based on the characteristics of the water flow control device (differential pressure switch). To prevent unnecessary water consumption, it is recommended to install a shut-off device upstream of the water pipe.
Correction factors for cooling capacity and power input take into account the presence of glycol and the difference in evaporating temperatures. The correction factor for pressure drop takes into account the different flow resulting from the application of the correction factor for water flow. The correction factor for water flow is calculated to maintain the same ∆t that would be present without glycol.
Depending on which fluid is considered (water or air), the graph is interpreted with a right or left side at the intersection of the curves with the outside temperature line or the produced water line. The point from which the vertical line runs is obtained, and this will distinguish between the percentage of glycol and the relative correction coefficients. The curves shown in the diagram summarize a large number of data, each of which is represented by a separate curve.
To use these curves correctly, it is first necessary to make some initial reflections. If you want to calculate the percentage of glycol based on the outside air temperature, enter from the left axis and when you reach the curve draw a vertical line, which in turn will cut off all the other curves; the points obtained from the upper curves represent the coefficients for the correction of cooling capacity and input power, flow rate and pressure drops (remember that these coefficients must be multiplied by the nominal value of the quantity in question); If you want to calculate the percentage of glycol based on the temperature of the produced water, enter from the right axis and when you reach the curve draw a vertical line, which will happen.
The initial rates for "OUTSIDE AIR TEMPERATURE" and "PRODUCED WATER TEMPERATURE" are not directly related, therefore it is not possible to refer to the curve of one of these rates to obtain the corresponding point on the curve of the other rate. Pc Corrective factors for cooling power Pe Corrective factors for input power Ph Corrective factors for heating power. Although the graph shows a maximum external air temperature of -40°C, the operational limits of the unit must be met.
Ethylene glycol solutions
Useful static pressures
Expansion vessel calibration
Sound data
Calibration of control and safety parameters
Selection and place of installation
Barycentres
Anti-legionella function
Compressor CP Evaporator EV F Filter Dehydrator HPS High Pressure Switch HPT High Pressure Transducer IDL Liquid Pass Indicator LPT Low Pressure Transducer TEV Electronic Thermostat c Valve VIC Cycle Return Valve IN. Compressor CP Evaporator EV F Filter dehydrator HPS High pressure switch HPT High pressure transducer IDL Liquid flow indicator LPT Low pressure transducer RT Total recovery (optional version) TEV Electronic thermostat c valve VIC Cycle return valve . Compressor CP Evaporator EV F Filter dehydrator HPS High pressure switch HPT High pressure transducer IDL Liquid flow indicator LPT Low pressure transducer RT Total recovery (optional version) TEV Electronic thermostat c valve VIC Cycle return valve RT.
Refrigerant circuits
