This product is the result of many years of experience and in-depth technical research and is built with top quality materials and advanced technologies. In addition, the CE marking guarantees that our devices fully comply with the requirements of the European Machinery Directive in the field of safety. UNI EN 14276 Seamless round copper tubes for air conditioning and refrigeration Pressure equipment for refrigeration systems and heat pumps.
The product, in accordance with Directive 97/23/CE, complies with the 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 compile the technical file is: / The person authorized to compile the technical file is: / La personne autorisée à constituer le dossier technique est : / Die Person behrechtig, die tehnique Unterlagen zusammenzustellungen:.
General warnings
Preservation of the documentation
Installation
Warranty
Warnings regarding safety
Product identification
Technical plate position
Electrical and hydraulic connections are all located on the top of the unit facilitating installation and maintenance operations. Careful sound insulation of the unit with suitable sound absorbing material gives all units noise limitations that allow the use of WRL as well. The electronic adjustment, through the use of the external air temperature probe "KSAE" (ACCESSORY) and according to the external conditions, automatically modifies the set point of the water temperature of the system, thus improving the energy efficiency of the system.
Mechanical thermostatic valve The mechanical valve, with external equalizer placed at the evaporator inlet, modulates the flow of gas to the evaporator, according to the heat load, to ensure a correct heating level of the inlet gas. To avoid unnecessary water consumption, it is recommended to install a shut-off device upstream of the water main supply. Thanks to the use of a modern electronic adjustment and of an external air temperature probe "KSAE" (ACCESSORIES), the chiller can adjust the temperature of the water produced, with change of the climatic conditions, which the energy efficiency of the system.
The unit's control panel allows quick setting of the machine's operating parameters and viewing them. The card saves all default settings and any changes, with the installation of the accessory remote control panel PR3 you can remotely control the switching on and off, setting the operating mode (cold-hot) and displaying the overview alarm. PR3: Simplified remote control panel, allows you to perform the basic operations of the device with notification alarm, Remote control with shielded cable up to 150 m.
The minimum flows were calculated based on the characteristics of the water flow control device (differential pressure switch). The correction factor for pressure drop takes into account the different flow resulting from the application of the correction factor for water flow. 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 that will intercept all the other curves; the points obtained on the above curves represent coefficients for the correction of cooling capacity and power input, flows and pressure drops (remember that these coefficients must be multiplied by the nominal value of the size in question);.
To calculate the percentage of glycol based on the produced water temperature, enter from the right axis and when you reach the curve, draw a vertical line that will. The initial stages for "OUTDOOR AIR TEMPERATURE" and "PRODUCED WATER TEMPERATURE" are not directly related, so it is not possible to refer to the curve of one of these stages to obtain the corresponding point on the curve of the other stage. Pc Correction factors for cooling power Pe Correction factors for input power Ph Correction factor for heating power.
Although the graph shows a maximum outside air temperature of -40°C, the operating limitations of the unit must be taken into account. The standard preload value of the pressure of the expansion tank is 1.5 bar, the maximum value is 6 bar. For example: if the level difference H is equal to 20 m, the calibration value of the vessel will be 2.3 bar.
The unit must be installed by a qualified technician in accordance with national legislation in the country of destination.
Presentation
Configurator
After a power failure event, the device is able to restart automatically and retain the original settings. 2] Loudness; Aermec determines the sound power value on the basis of measurements according to standard 9614-2 in accordance with the Eurovent certification. 3] Sound pressure in an unrestricted area on a reflective plane (directional fact. Q=2), 1m away from the outer surface of the device, in accordance with ISO 3744.
4] Sound pressure in an unbounded range in a reflecting plane (direction fact. Q=2), 10 m away from the outer surface of the unit, in accordance with ISO 3744. The correction factors of cooling capacity and input power take into account the presence of glycol and the change in evaporation temperatures. The water flow rate correction factor is calculated to maintain the same Δt that would be present in the absence of 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. In order to use these curves correctly, some initial considerations must first be made.
Description of components
Structure
Cooling circuit
Hydraulic circuit
Water features
Components that can be configured
Safety and control
Electric control board and regulation
Accessories
Accessories compatibility table
Pc Pe EER Pc Pe EER Pc Pe EER Pc Pe EER Pc Pe EER Pc Pe EER Pc Pe EER. P (5) Corrective factor for pressure drop with an average liquid temp. = 47.5 °C) Qw (1) Corrective factor for pressure drop (evaporation) with an average liquid temp. If the calibration value obtained from the formula is less than 1.5 bar (ie for H < 12.25), use the standard calibration.
The safety distances between the units and other devices or structures must be strictly respected.
Operating limits
Project data
Performance and absorption that differ
Pressure drops
A point is obtained from which the vertical line will pass and this will distinguish both the percentage of glycol and the relative correction coefficients. The curves shown in the chart summarize a significant amount of data, each represented by a specific curve.
Ethylene glycol solutions
Useful static pressures
VE: Vaso di Espansione FM: Filtro Acqua FD: Filtro Disidratatore VT: Valvola Termostatica PD: Pressostato Differenziale --- COMPONENTI SELEZIONABILI.
Expansion vessel calibration
Sound data
Refrigeration lines “WRLE”
Selection and place of installation
Barycentres
Refrigerant circuits
WRL 025-080
WRL 100-160
WRLE 025-080
WRLE 100-160
