Alfamini-Alfamax series

Transcription

1 Alfamini-Alfamax series High efficiency air handling unit for wellness areas Air flow rates from to m 3 /h rev.02 Trattamento dell aria SELECTION MANUAL ISO 9001: Cert.n 0882/4 FAST S.p.A.

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3 Index English General 4 Energy efficiency 5 Use limits 5 Description of the Alfamini/ Alfamax units 6 Accessories 8 Nominal technical data 9 Operating schemes for Alfamini - Alfamax 10 Control system 11 Simplified method for the unit selection 12 Operating limits 14 Units performance 15 Accessible plate heat exchanger (standard) 20 Hydraulic schemes for the connections 21 Dimensions 22

4 General In the modern wellness centers, swimming pools or SPA, the temperature control and humidity conditions of the environment represent a crucial requirement for the visitors comfort. In particular, the pool area requires a constant balance at any time of year; the continuing variation from dry and wet conditions of the users requires a perpetual and effective monitoring of both air temperature (max. 2-3 C higher than water temperature) and relative humidity. With too high humidity values, breathing is actually inhibited while too low values can worsen the cold feeling as the skin evaporation is accelerated. The particular wellness needs (high temperatures and constant relative humidity control), the need to maintain certain temperatures in the pool reintegrating hygienic requirements for a portion daily (usually at least 5% of the volume of the tank every day), the great demand for hot water for sanitary use, the considerable air flow requirements and the control of sensitive and latent loads to keep as low as possible the thermal differential between input and environment are all aspects that have a strong incentive for the designer to research plant types best suited to reduce energy consumptions. GIVEN THE PECULIARITY OF THE ENVIRONMENTS THAT CAN BE SERVED BY ALFAMINI AND ALFAMAX UNITS, THIS MANUAL IS ONLY INTENDED TO PROVIDE PRODUCT INFORMATION AND INDICATIONS FOR THE CHOICE OF UNITS. SPECIAL REQUIREMENTS NEED A BESPOKE STUDY: IN THIS CASE PLEASE CONTACT THE TECHNICAL -COMMERCIAL FAST DEPARTMENT. To meet the demands of the before described environments FAST SpA offers the AlfaMini (5 sizes with nominal flow rates from to m³/h) and Alfamax units (3 sizes with nominal flow rates from to m³/h). The main unit function, which is a plug and play machine, is to dehumidify while providing control of wellness conditions of the environment. The unit combines a heat pump, a system of sensible and latent heat recovery from humid air expelled from premises and a free heating system of the water pool making it optimized for the reduction of energy consumption. The structure and all internal components are designed for maximum corrosion resistance. Selection manual 4 GB

5 Energy efficiency Facilities where the units of the Alfamini and Alfamax series find appilcation (swimming center, wellness area, etc..) are characterized by a very high energy consumption. The air handling units should therefore be optimized for the least possible impact in the energy balance of the system. The technical solutions adopted by the units are able to reduce the energy consumption through: - Use of efficient energy recovery from the exhaust air. The recovery system consists of a single (for the Alfamini series) or double (for Alfamax) plate cross-flow heat recovery unit; - Use of a heat pump with energy recovery function from the exhaust air and energy integration into the supply air flow. The cooling system operates with refrigerant R410A: the TEWI Index (Total Equivalent Warming Impact), which represents the parameter related to emissions of refrigerant during the life cycle of the units and those due to the CO2 emissions for energy production, is lower than all other types of refrigerant currently available. The circuit is equipped with an electronic expansion valve, which unlike the conventional thermal expansion valve, it allows to optimize the operation of the compressor thereby reducing the electricity consumption. - Use of high efficiency plug-fans equipped with electric motors with efficiency class EFF1. The direct coupling between fan and motor allows for the reducing of losses due to transmission (beltpulley). These power losses can reach up to 20% of the absorbed power of the fan shaft; - Use of inverter devices for the electric motors speed control of the plug fans ; A logic control with automatic handling of operation cycles, so made to reduces the energy consumption. Operating limits The rooms in which the Alfamini and Alfamax units operate distinguish for being particularly aggressive. AIR CHARACTERISTICS : The units are suitable to handle air from swimming pools treated with chlorinebased disinfectants. WATER CHARACTERISTICS : Maximum concentration of chlorine in water: 1.4 mg/l. ANY FURTHER APPLICATION THAT PROVIDES FOR CONCENTRATIONS IN THE AIR OR WATER OF PARTICULAR DISINFECTANTS OR OTHER SPECIAL SUBSTANCES NEEDS A PRELIMINARY EVALUATION BY OUR TECHNICAL-COMMERCIAL OFFICE, AS RESULT GUARANTEE FAILURE. AVOID DIRECT CONTACT BETWEEN UNITS AND PURE DETERGENTS. PROPERLY PROTECT THE PLATE EXCHANGERS OF THE REFRIGERATION CIRCUIT WITH SUITABLE WATER FILTERS TO AVOID CLOGGING. Selection manual 5 GB

6 Alfamini/Alfamax: components location ALFAMINI EXHAUST SUPPLY OUTSIDE ALFAMAX EXHAUST SUPPLY OUTSIDE 7 1 Compressors cabinet separate from air flow 2 Evaporating heat exchange coil 3 Condensing heat exchange coil 4 Water heat exchange coil 5 Recirculation damper 6 Recirculation damper for Alfa cycle 7 3-way valve with modulating actuator 24V 8 Fresh air damper equipped with actuator 9 Exhaust damper equipped with actuator 10 Exhaust fan (no. 2 for Alfamax) 11 Supply fan (no. 2 for Alfamax) 12 G4 plan filters (EN779) 13 F9 soft bags (EN779) 14 Drops separator 15 Cross flow plate heat recovery unit 16 Electrical panel and electronic controller 17 Plate heat exchanger for heat transfer to the swimming pool water Selection manual 6 GB

7 Alfamini ed Alfamax descriptions These units, in the standard executions, are constuìituted by a section which internally raggruppa the supply/exhaust fans and filters, and a further section equipped with refrigerant circuit and from heat recovery units. FRAME The bearing frame is made of aluminium profiles with anodisazion treatment which grants the necessary protection to the corrosion due to the potentially aggressive atmosphere. To facilitate the internal and external cleaning and avoid the dust build-up, the edges are rounded. Profiles are linked each other through nylon corners reinforced with glass fibre. All fixing screws are Marutex brand to grant an exceptional resistance to corrosion. CASING The casing is made of sandwich panels with 50 mm thick fixed to the frame with proper blocking profiles. This fi xing system permits uniform pressure over the casing, providing excellent air and water tightness (according to the EN 1886). Panels are made of internal surface in pre-painted galvanized steel, external surface in pre-painted galvanized steel and insulation by means of injected polyurethane with density 42 kg/m3. The accessible doors use selfclosing handles. Furthermore, all bearing elements and the components closings and are completely painted to guarantee the maximum resistance to corrosion. The inferior surface of the unit is equipped with draining panels in pre-painted galvanized steel with central discharge. Upon request panels can be made in different materials for the sheets and mineral wool (density 40 kg/m3 or 100 kg/m3) as insulator. It is advisable to verify the different options with Fast technical office to check the feasibility. BASEMENT The basement is steady for all sizes and made in galvanised steel sheet. CROSS FLOW STATIC RECOVERY The energy recovery of the exhaust air acts through a single (for the Alfamini series) or double (for the Alfamax series) cross flow plate heat recuperator air/air. The heat recovery units are subjected to a complete paint treatment. DAMPERS In the standard configuration, the unit is equipped with 4 dampers: - a damper placed outside, on the exhaust air flow; - a damper placed outside, on the fresh air flow; - a recirculation damper (used to permit the maximum speed of the room air flow); - a recirculation damper placed before the heat recuperator to make the alfa cycle. All dampers are made of anodized alluminium and each controlled by modulating actuators 24V (with spring return for the external dampers). The accurate construction allows for the reducing of the air laeckage. FAN SECTION Fans sections are epoxy painted resistant to corrosion, equipped with plug fans with wheels with high performance backward-curved blades. Electric motors with effi ciency class EFF1 driven to the wheel, to be controlled by inverter (standard). FILTERS Panel filters are included on the exhaust (efficiency class G4 in compliance with EN779) and panel + bag filters on the supply (efficiency class G4 + F9 in compliance with EN779) which allow to respect the norms currently in force referring to room air quality. A differential flow switch for the clogging filters is supplied on the supply/exhaust as standard. REFRIGERANT CIRCUIT It is equipped with scroll compressor with rubber anti-vibration dampers, exchange coils refrigerant gas/air with copper pipes and painted aluminium fins and frame, filtration devices, electronic expansion valve, liquid receiver, drier fi lter, control (pressure transducers and lights) and protection (high and low pressure switches), connections in brazed copper, ecologic refrigerant R410A. The cooling circuit is inserted in a compartment isolated from the air flow to facilitate the control and maintenance operations. WATER HEATING COIL Coil is completely painted to grant the highest resistance to corrosion. The coil is standard equipped with a 3-way valve with 24V modulating actuators. COMPLETE CONTROL BOARD It is installed inside the unit. Electrical installation for the connections of power and signal, installation pipe with cable-fixing clamp and sleeve accessories, and protection class IP44. Selection manual 7 GB

8 MICROPROCESSOR CONTROL AND REGULATION The unit has a microprocessor control system, able to handle the different operating modes, providing maximum energy efficiency in all conditions. The RS485 interface card is supplied standard (MODBUS protocol) to be used for connection to the supervision systems and remote control. The electronic control, according to the variable opening of the dampers and their combination, acts in the following mode: - Automatic management of the operation mode both for handling and functions; - Dehumidification with external air; - Energy recovery with the help of the cooling system; - Automatic switching of the ALFA cycle (particular cycle in which the cooling system participates in the dehumidification of the air to be treated); - Management of the signal to activate or not the heat exchanger for the pool water heating through a thermostat (not provided); The operating cycles are shown and well-documented in the properly section. HEAT EXCHANGE SYSTEM TO REHEAT THE POOL WATER Heat exchange system to free reheat the swimming pool water composed by a double plate condenser. One of the exchangers is installed in the cooling circuit of the unit inside the machine: the heat exchange takes place between the refrigerant and not aggressive water. The second one is for the swimming pool water, with possibility of inspection, in stainless steel AISI 316L and is supplied loose. The hydraulic circuit between the two plate exchangers has to be completed with the necessary components (pump, water filter, expansion valve, valves, etc.) to installers charge. Accessories PROTECTION ROOF Built as standard in pre-painted sheet. It is a compulsory accessory if the Alfamini / Alfamax unit should be installed outside. REMOTE PANEL The remote panel allows to manage all functions of the unit control system. The remote control panel is supplied without cable connection between it and the board (we recommend using a Belden 3105A). The maximum permitted length of the cable is 50m. For lengths over 50m, please contact the FAST technical sales office. SINGLE HEAT EXCHANGER TO REHEAT THE POOL WATER This is a heat exchanger using refrigerant and water pool. The exchanger is used as a replacement of the double-plate heat exchanger. For further technical information about this exchanger please contact the FAST technical sales. FURTHER ACCESSORIES ARE AVAILABLE UPON REQUEST. Selection manual 8 GB

9 Nominal technical data The technical data described in the following table are referred to a particular operating cycle (cycle with external air dehumidification) and are not representative of all operating conditions which automatically the electronic regulation of the unit is able to adapt to the halls requirements. Alfamini - Alfamax Max. air flow (supply/exhaust) m³/h Static available pressure (supply/exhaust) Pa Recuperators recovered capacity 1 kw 7,9 12,6 20,4 32,0 41,5 59,6 68,6 89,2 Max. recuperators efficiency 1 % 80,8 79,3 80,1 79,5 79,4 93,0 86,0 89,0 Recovered capacity of the refrigerant circuit 1 (heating capacity of the condensing coil) kw 7,5 10,5 21,3 31,7 45,7 46,3 53,6 69,4 Total recovered capacity 1 kw 15,4 23,1 41,6 63,7 87,3 105,9 122,2 158,6 Compressors absorbed capacity 1 kw 1,3 1,6 3,7 6,0 8,4 8,5 9,2 12,8 COP 1-11,8 14,4 11,2 10,6 10,4 12,5 13,3 12,4 Total dehumidification capacity 1 kg/h 15,5 25,2 40,1 63,7 82,7 102,2 127,6 159,5 Shaft power of the supply fan kw 1 x 1,2 1 x 2,1 1 x 3,1 1 x 5,1 1 x 6,5 2 x 4,6 2 x 6,0 2 x 7,8 Shaft power of the exhaust fan kw 1 x 0,9 1 x 1,5 1 x 2,2 1 x 3,8 1 x 4,8 2 x 3,5 2 x 4,2 2 x 5,3 Type / compressors no. n Scroll / 1 Water heating coil (standard) Max. capacity (without active recovery) 1 kw 26,1 35,4 61,6 95,3 124,5 131,9 182,7 205,9 Water flow 2 l/h Pressure drops on water side 2 kpa Plate exchanger R410A / not aggressive water Nominale water flow 3 l/h Pressure drops 3 kpa Accessible plate exchanger with not aggressive water / pool water (standard) Pools nominal water flow 4 l/h Pressure drops on pools side 4, 5 kpa 32,4 34,0 31, ,5 34,2 34,7 34,2 Pressure drops on intermediate circuit side 4 kpa 21,2 22,3 20,3 21,6 22,5 22,3 22,7 22,2 Electrical data * Power supply 400 V - 3 ph - 50 Hz Max. total absorbed current of the supply fan A 3,5 6,2 11,0 14,6 15,0 29, Max. total absorbed current of the exhaust fan A 2,6 4,9 6,4 11,3 11,3 22,0 22,6 30 Max. absorbed current A 11,6 17,1 32,4 49,3 61,3 86,2 99,6 123 Starting current A 32,1 46,1 91,4 181,9 184,3 209,0 223,0 287,0 Dimensions and weights Height mm Width mm Lenght mm Weight kg Note: 1 External air 0 C, R.H. 80%; internal air 29 C, R.H 60%. 2 Water temperature inlet/outlet 70/60 C; pressure drops on water side complete with 3-way valve. 3 Not aggressive water temperature inlet/outlet 27/37 C. 4 Water temperature inlet/outlet of the refrigerant circuit 37/27 C; pools water temperature inlet/outlet 25/35 C. 5 Pressure drops do not include the 3-way valve. * Please refer to the wiring diagram inside the unit. TECHNICAL DATA ARE SUBJECT OF POTENTIAL CHANGES. Selection manual 9 GB

10 Operation schemes Alfamini-Alfamax Here under are the schemes of the main operating modes of the unit (schemes are referred to the Alfamax unit, the operation modes of the Alfamini units are the same as Alfamax units). In the following schemes please consider that the hot water coil is always operating, as it must refer to external air temperatures lower than 10 C with required supply temperature which has to balance the heat loss of the building. Cycle start-up Supply Exhaust From the top 5 External air This operating mode aims at reducing to zero the external air capacity. The total air fl ow is recirculated through the damper n 5 and re-introduced in the swimming pool. The water reheating coil is operating. The operating cycle is activated for the necessary time to reheat the room. Cycle dehumidifying Supply Exhaust Dehumidification with external air From the top External air This operating mode aims at dehumidifying the room with the external air, by balancing the poof rain evaporation. The cooling circuit (composed of compressor n.1 and coils n. 2 and 3) allows to recover the sensible and latent heat of the exhaust air, and transfer it to the inlet air or water by means of the heat exchange system composed of the double exchanger on the water side. The hot water coil n. 4 integrates, if necessary, the heating capacity supplied by the cooling circuit, housed on the inlet air fl ow (condensing coil n.3). Dehumidification with outside air and alpha cycle Supply Exhaust 4 3 From the top External air If convenient, the compressor also contributes to the swimming pool dehumidifying. The fresh air fl ow rate is modulated by the fans inverters to reach the required wellness conditions. According to the external ambience temperature the unit adjusts the operation in order to reach the best energy savings. Dehumidification with outside air (night cycle) Supply Exhaust From the top External air During the night operation the unit adjusts the function settings to adapt to the evaporating variations of the pool and reduce the consumptions at minimum. Selection manual 10 GB

11 Cycle with heat transfer to water If the air temperature conditions in the ambience are satisfi ed, the heat so rejecked by the cooling circuit will be given to the swimming pool water, by means to a double plate exchanger (standard). A plate exchanger is an essential part of the cooling circuit of the unit (exchanger R410A/water of intermediate circuit, in the following fi gure indicated with n. 1). A further inspectionable exchanger (operating with recirculation water of the intermediate circuit/ swimming pool water, in the following fi gure indicated with n. 2) is supplied together with the unit. The heat system thus constituted is of very easy maintenance. The components and the connections among the exchangers are responsibility of the client. 1 2 The scheme is indicative. For simplicity, all the components needed to complete the water circuit are not shown. Control system The control system of Alfamini/ Alfamax units is equipped with a 16-bit microprocessor with flash technology and software specifically designed for the control of all functions. The set information, alarms, timing settings and all parameters are displayed on a multi-function control panel with graphic display inside the cabinet. The control system automatically provides: to implement the cheaper operating cycle and more suited to the room needs; to make the minimum air renewal required by law in force; to manage the initial stages of the heating up system; to implement a reduced function cycle when possible; to switch from air heating operation to water heating operation. For further information please refer to the control specific manual. Remote panel inside the electrical panel (standard). Selection manual 11 GB

12 Simplified method for units selection Table 1 - SPECIFIC EVAPORATION OF THE POOL HALL (g/h for m 2 of water surface) Internal room conditions Hall temper. ( C) Relative humidity (%) Temperature d.b. ( C) g/h for m 2 of water surface Table 2 - POOL USE Pool use Use factor Residential 0,5 Fitness club 0,65 Therapy/Elderly Swim 0,65 Hotel 0,8 Institutional/schools 0,8 Public pools 1,0 SPAs and whirlpools Contact FAST Table 3 - ACTIVITY COEFFICIENT Internal activity g/h each person A- Seated at rest 50 B- Seated very light work 80 C- Seated, light work 110 D- Walking, standing 130 E- Moderate dancing 280 F- Walking briskly with loads 330 G- Light exercise 450 H- Medium atletic activity 500 I- Athletics 560 DEHUMIDIFYING POWER OF THE EXTERNAL AIR (g/h for mc/h of external inlet air flow in the room) g/h taken out a water cqua a sportat for mc/h i of external air inlet 3 / h d ia ri a estern a 20 Internal room conditions: 25 C-50UR% 25 C-60UR% C-70UR% External temperature index g/h taken out a cqua water a sportat for mc/h i of external air inlet d a ri a 3 / h i a 5 0 Internal room conditions: 27 C-50UR% 27 C-60UR% 27 C-70UR% External temperature index Selection manual 12 GB

13 g/h taken out a c qu water a a sportat for mc/h i of external air /h inlet d i a ri a Internal room conditions: 29 C-50UR% 29 C-60UR% 29 C-70UR% External temperature index g/h taken q out u a water a sportat for i mc/h of external air h d iinlet a ri a Internal room conditions: 31 C-50UR% 31 C-60UR% 31 C-70UR% External temperature index g/h taken out c qua water a sportat for imc/h of external air inlet /h d i a ri a Internal room conditions: 33 C-50UR% 33 C-60UR% 33 C-70UR% External temperature index IMPORTANT COMMENT: The Alfamini-Alfamax units, in the execution described in this technical manual, are not able to cool the room, therefore in these diagrams the allowed temperature index is equal or inferior to the internal room temperature. The use of tables and diagrams before described, allow to get the required air flow (and therefore to the Alfamini/Alfamax size) necessary for the room dehumidification function. It is a simplified selection method: for further information please contact our technuical/sales department. It will be introduced now the external index temperature which represent the different temperature/humidity combinations of the external air reported in the following table: EXTERNAL TEMPERAT. INDEX External temp. d.b. ( C) External relative humidity (%) Selection example: 1- Given for example a tank with a surface of 100 m2; 2- Assuming that the water temperature is equal to 27 C; the indoor air conditions are equal to 29 C, 60% RH. With these first data from table 1, we can define that the evaporation is equal to 172 g / hour per square meter of water surface. 3- Supposing that swimming pool is used for residential purposes. The use factor, derivable from table 2, is equal to 0,5. Therefore the total humidity generated from water surface (g/h) is given from (tank surface x specific evaporation x use factor): 100 m 2 x 172 g/h m 2 x 0,5 = g/h 4- Assuming now that inside the hall are 17 people doing light exercise. From table 3 we can define that generated Selection manual 13 GB

14 humidity is equal to 450 g/h each person. Therefore, the total generated humidity (g/h) is given by (number of persons x specific evaporation): 17 persons x 450 g/h person = g/h The total humidity is obtained from the sum of the humidity produced by the evaporation of the water surface with that generated by people: g/h g/h = g/h = 16,25 kg/h 5- Now considering, for example, an outdoor temperature index (which represents the project condition/ operating limit for the Alfamini/Alfamax selected units) equal to 26 (i.e. outside air at a temperature of 26 C with 54% RH) and temperature/ humidity temperature inside the room of 29 C with 60% RH: from graphs we obtain an eliminated humidity value of 4.1 g/h for m/h of fresh air into the hall. 6- The outside air flow required to compensate the evaporation produced by the water surface and people is obtained from the ratio between total humidity and the dehumidifying power of the external air: g/h : 4,1 g/h mc/h = mc/h Therefore from the table of nominal technical data, the selected unit according to the flow appears to be the Alfamini 040 with a nominal air flow of 4,000 cubic meters/h. According to the difference between the external temperature index and the room internal conditions, the size of the selected unit can vary a lot. Considering in the same example above that the external index now is 20 and not 26, from graph we can get the value of humidity removed is 7 g/h for m/h of fresh air into the room. And therefore the external air flow is: g/h : 7 g/h mc/h = mc/h From the table of the nominal technical data the unit to be selected is therefore the Alfamini 025 with nominal air flow di mc/h. Operating limits The external temperature index, per il quale the Alfamini-Alfamax unit has been selected, represents the operating limit (referred to the external conditions) over that the unit is not able to keep the humidity control in the room. Beyond this limit, if the internal vapore production is constant, the relative controlled humidity will deviate towards higher values. Referring to the before example (external temperature index equal to 26), the side graph represents the indicative trend and not binding: - of the external air inlet in the room (continuous line) in relation to the total air derived from the unit; - of the internal room humidity deriving from unit operation (dotted line). External air flow [%] Internal relative humidity [%] Indicative trend of the external air flow Indicative trend of the internal humidity 100 % Portata Nuova Um Rel Locale UR_1-11 Portata Nominale di Temperatura Esterna External temperature index Selection manual 14 GB

15 Unit performances The performances of the unit which can be obtained from the tables are the following: - eliminated room humidity - recuperators performance (efficiency and recovered power) - refrigerant circuit performance (heating capacity of the condensing coil and compressors absorbed power) - performance of the hot water coil (heating capacity, water flow and pressure drops on water side). The heating capacities of the water coils are referred to the refrigerant circuit not operating (max. capacity). Unit performances refer to the conditions reported in the A table. Table A - GENERAL COUNT CONDITIONS OF THE PERFORMANCES Room temperature ( C) Room relative humidity (%) External temperature index External temperature ( C) External relative humidity (%) External air flow compared to the total air flow (%) ALFAMINI 025 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) Water IN-OUT: C Water IN-OUT: C ,5 80,8 10,2 6,7 1,2 26, ,5 79,4 9,0 7,1 1,3 26, ,5 76,9 7,9 7,5 1,3 26, ,5 74,6 7,0 8,1 1,3 26, ,5 70,8 6,0 8,6 1,3 26, ,5 65,7 4,9 9,2 1,4 26, ,5 61,2 3,9 9,8 1,5 26, ,5 60,6 2, , Selection manual 15 GB

16 ALFAMINI 040 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) Water IN-OUT: C Water IN-OUT: C ,2 79,3 16,3 9,5 1,6 35, ,2 77,9 14,3 9,9 1,6 35, ,2 75,8 12,6 10,5 1,6 35, ,2 72,8 11,0 11,0 1,6 35, ,2 68,9 9,5 11,6 1,6 35, ,2 63,9 7,8 12,1 1,6 35, ,2 59,6 6,1 12,6 1,6 35, ,6 59,0 3, , ALFAMINI 060 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) Water IN-OUT: C water IN-OUT: C ,9 80,3 25,5 19,0 3,6 61, ,9 78,6 23,1 20,1 3,7 61, ,9 76,8 20,7 21,4 3,7 61, ,9 73,6 18,2 22,8 3,8 61, ,9 70,2 15,7 24,2 3,8 61, ,9 65,3 12,9 25,8 3,9 61, ,9 60,2 10,0 27,5 4,0 61, ,3 59,2 5, , Selection manual 16 GB

17 ALFAMINI 100 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) water IN-OUT: C water IN-OUT: C ,7 79,5 41,2 28,3 5,7 95, ,7 77,7 36,1 29,9 5,8 95, ,7 76,0 32,0 31,7 6,0 95, ,7 72,9 27,9 33,6 6,1 95, ,7 69,5 24,1 35,8 6,2 95, ,7 64,6 19,9 38,1 6,3 95, ,7 59,5 15,4 40,5 6,5 95, ,6 58,4 7, , ALFAMINI 130 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) Water IN-OUT: C water IN-OUT: C ,7 79,4 53,5 41,1 8,2 124, ,7 78,3 47,2 43,2 8,3 124, ,7 76,0 41,5 45,7 8,4 124, ,7 72,8 36,2 48,7 8,6 124, ,7 69,4 31,3 51,7 8,7 124, ,7 64,5 25,8 55,3 8,9 124, ,7 59,4 19,9 59,1 9,2 124, ,3 58,4 10, , Selection manual 17 GB

18 ALFAMAX 160 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) water IN-OUT: C water IN-OUT: C ,2 92,9 77,3 40,9 8,3 131, ,2 91,0 67,7 43,4 8,4 131, ,2 88,3 59,6 46,3 8,5 131, ,2 84,1 51,7 49,7 8,6 131, ,2 77,6 43,2 53,5 8,7 131, ,2 66,5 32,9 57,6 8,8 131, ,2 63,5 26,3 61,0 9,0 131, ,6 62,6 13, , ALFAMAX 200 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) water IN-OUT: C water IN-OUT: C ,6 86,1 89,5 47,5 9,1 182, ,6 84,2 78,3 50,3 9,2 182, ,6 81,3 68,6 53,6 9,2 182, ,6 75,9 58,8 57,2 9,3 182, ,6 70,4 49,0 61,1 9,3 182, ,6 60,5 37,3 65,2 9,3 182, ,6 58,8 30,4 68,8 9,5 182, ,3 57,8 15, , Selection manual 18 GB

19 ALFAMAX 250 PERFORMANCES External temperature index Nominal air flow (mc/h) Eliminated humidity (kg/h) Recuperators efficiency (%) Recovered capacity from recuperator (kw) Heating capacity of the condensing coil (kw) Recovered capacity from compressor (kw) Max. heating capacity of the water coil(kw) Water flow (l/h) Pressure drops on water side (kpa) Max. heating capacity of the water coil (kw) Water flow (l/h) Pressure drops on water side (kpa) water IN-OUT: C water IN-OUT: C ,5 89,2 115,9 61,8 12,5 205, ,5 87,4 101,5 65,3 12,7 205, ,5 84,6 89,2 69,4 12,8 205, ,5 79,4 81,1 75,3 12,9 205, ,5 75,1 69,6 77,7 12,9 205, ,5 67,1 54,6 79,1 13,0 205, ,5 61,7 43,0 79,7 13,0 205, ,1 60,4 27, , Selection manual 19 GB

20 Accessible plate exchanger (standard) The accessible plate exchanger is supplied alongside the unit. For the hydraulic connection and for the R410A/water exchanger (inside unit) please refer to the proper paragraph. Technical characteristics: Plate material: Inox steel AISI 316. Plate material for the frame: steel, epoxi paint. Gaskets by nitrile joint. Alfamini 025 Alfamini 040 Alfamini 060 Alfamini 100 Alfamini 130 Alfamax 160 Alfamax 200 Alfamax 250 P (mm) Q (mm) W (mm) weight (kg) Selection manual 20 GB

21 I Hydraulic schemes for connections The following is an example of a connection between the water/r410a exchanger (G in the picture, inside the unit) and the water/accessible water exchanger (A in the picture and supplied loose). The lack or the not proper location of the mentioned components could affect the standard operation of the unit. N O W F A G W W B p C C ALFAMINI ALFAMAX M D E D L Standard components Components and indicative location A Water/accessible water exchanger (supplied loose) G Water/ R410A exchanger (inside Alfamini/Alfamax units) B C Differential flowswitch with digital contact Digital thermostat di consenso for the heat recovery to water I L M Y filter Automatic filling group Filter for pools water D Shut-off valve N Chlorine system E Recirculation pump O Main heat production system F Expansion vessel W Water flow The thermostat (C) is used to detect the water temperature of the intermediate circuit and activate, even when the flow switch (B) gives its consent, the heat transfer to water. The set value of the thermostat is helpful to ensure that the water temperature at the water/r410a exchanger inlet does not exceed 27 C. Below this value, the heat transfer cycle to water is not able to activate. The differential flow switch (B) is used to detect the presence of water flow in the heat exchanger (G). The recirculation pump (E) must work only in case the water flow is present (W). Otherwise it must be off. The heat transfer to the water cycle represents an alternative to the supply air heating. If the set air conditions in the room are satisfied and the consent to the heat transfer to water is not active, the compressor of the refrigerant circuit will turn off. ATTENTION: THE CHLORINE INSTALLATION MUST BE PLACED AFTER THE EXCHANGER (A) Selection manual 21 GB

22 Unit dimensions ALFAMINI ,5 67, , ,5 157, , CONNECTIONS/INSPECTIONS LATO ATTACCHI E SIDE ISPEZIONI , ,5 NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding. 62, ,5 Selection manual 22 GB

23 ALFAMINI , , ,5 157, , CONNECTIONS/INSPECTIONS LATO ATTACCHI E ISPEZIONI SIDE Quadro elettrico ruotante NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding , ,5 62, ,5 Selection manual 23 GB

24 ALFAMINI , ,5 57, , CONNECTIONS/INSPECTIONS SIDE LATO ATTACCHI E ISPEZIONI Quadro elettrico ruotante NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding , ,5 62, ,5 Selection manual 24 GB

25 62,5 356 ALFAMINI , ,5 72, CONNECTIONS/INSPECTIONS LATO ATTACCHI E ISPEZIONI SIDE , ,5 NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding. 62, ,5 Selection manual 25 GB

26 356 ALFAMINI CONNECTIONS/INSPECTIONS SIDE 54, NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding Selection manual 26 GB

27 160, ALFAMAX CONNECTIONS/INSPECTIONS SIDE LATO ATTACCHI E ISPEZIONI NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding. 157,5 157, ,5 62, , Selection manual 27 GB

28 ALFAMAX , ,5 167, , CONNECTIONS/INSPECTIONS SIDE NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding. 62, , , ,5 Selection manual 28 GB

29 ALFAMAX 250 CONNECTIONS/INSPECTIONS SIDE , , , ,5 NB. Dimensions are subject to potentialchanges due to the natural evolution of the product and are therefore not considered as binding. 62, , , ,5 Selection manual 29 GB

30 NOTE

31

32 Manual printed on recycled paper rev.02 Technical data shown in this booklet are not binding. FAST S.p.A. shall have the right to introduce at any time whatever modifications deemed necessary to the improvement of the product. FAST S.p.A. TRATTAMENTO DELL'ARIA Montagnana (PD) - Italy Via Luppia Alberi, 170 Tel. (+39) Fax info@fastaer.com