Fincoil FMP and FMPG. Air coolers and liquid circulated air coolers

Transcription

1 Fincoil FMP and FMPG coolers and liquid circulated air coolers FMP air coolers and FMPG liquid circulated air coolers are designed for cold rooms where low profi le dual discharge air cooler is needed. Units are also suitable for cooling engine rooms and monitoring rooms. The range includes C-models with copper tubes designed for refrigerants and liquids, which do not corrode copper and S-models with stainless steel tubes suitable for NH 3 and for conditions requiring special corrosion protection. To applications, where adjustable air throw fi gure and isolated drip tray design is needed, we recommend Polar Bear Duo range and for special conditions MK range air coolers with hot dip galvanized heat transfer section. Features 12 sizes with nominal capacities from (R404, SC2, EN 328) Performance data of air coolers according to Eurovent Rating Standard 7/C/001 Fan sizes Ø 450 mm and Ø 500 mm with four fan speed alternatives, fan size Ø 630 mm with two fan speed alternatives In evaporator use inside grooved Cross Hatch-tube, smooth tubes in liquid use Hygienic construction; the casing is made of polyester coated, hot dip galvanized steel. The unit can be tightly installed to the ceiling. Double, uninsulated drip trays, which are easy to open and remove Product selection with the FincoilSelect program

2 2 Technical data The heat transfer section is made of aluminium fi ns and copper tubes (C) with 4 mm, 7 mm or 12 mm fi n spacing or stainless steel tubes (S) with 4 mm or 7 mm fi n spacing. s an option, aluminium fi ns with epoxy coating are also available with 4 mm fi n spacing (please check electric defrost capacity). The capacity correction factor for heat transfer capacity of epoxy-coated aluminium is Casing material is polyester coated hot dip galvanized steel, colour white NCS C-models are with direct expansion as standard and S-models with pump circulation as standard. Double, uninsulated drip trays are easy to open and remove for cleaning. Units have electric defrost as well as hot gas defrost as alternative. reliable, energy saving defrost heating element is used in the tray defrost. manual including installation and service instructions is shipped with each unit. Product designation FMPC E /400/50-6b-SS cooler Coil Special model Fin spacing Number of fans Fan diameter Fan speed Power supply Marking of circuits Options Liquid circulated air cooler Coil Special model Fin spacing Number of fans Fan diameter Fan speed Power supply Number of circuits Tube connection DN = fl ange R = outer thread Tube connection size Options FMPCGE /400/50-8R1-SS Options SS = electric defrost in coil and tray SS = electric defrost in tray only KK-SS = hot gas defrost in coil, electric defrost in tray RSt = casing of stainless steel Ep = epoxy coated fi ns, 4 mm fi n spacing only Q = fans safety switches mounted beside fans W = fans wired to the junction box at the cooler end Pc = pump circulation (C) DX = direct expansion for R717 (S) = air suction through the coil block, blowing direction downwards Y = air suction from above, blowing sidewards (mounting minimum 300 mm from the ceiling)

3 3 Fans The standard motors are suitable for 3/400 V/50 Hz power supply. Suitability for other power supplies has to be checked separately. The minimum operating temperature for fan motors is 50 C. In the standard model the air suction is from below and blowing sidewards. Technical information for other power supplies is available separately. Fan power input in the performance data tables is given at +20 C temperature. Full load current () is given for temperature of 30 C. The current value changes according to air density. The data may also vary due to changes in motor types; therefore the overload protectors should have a +/ 20% adjustment margin. Fan speed can be regulated by changing the voltage, excluding fan Ø 630 mm, which can be regulated by a frequency converter. The fan speed can be reduced by changing delta connection (D) into star connection (Y), excluding fan Ø 630 mm. The fans have internal thermal protectors wired to fans junction boxes. If they are connected to control the contactor, an external overload protector is not needed (excluding fan Ø 630 mm). The protection class of fans is IP54. Performance data The capacities and air fl ows shown in the Polar Power selection program and in the tables in this brochure are certifi ed with the Eurovent Certify ll-certifi cation, and verifi ed by tests (EN 328) in independent laboratories. The performance data of the air coolers is given for the refrigerant R404, with standard condition SC2 (t e = -8 ºC, Δ T1 = 8 K, RH = 85%). The infl uence of humidity is included in the nominal capacities. The performance data is given at the sea level and with normal atmospheric pressure. throw is given with 7 mm fi n spacing, 1400 fan speed and fi nal air velocity 0.5 m/s. The air throw realizes in isothermal conditions and with undisturbed fl ow. The air throw changes according to air current. The maximum air throw can vary from the middle line depending on for example location of shelves and lamps. is the -stressed sound power level []. Sound pressure level [] is given in a room with absorption of 100 (Sabine), with observation point at a distance of 5 meters and 45º horizontally below the middle point of the fans. Selection The preliminary air cooler selection can be made using the tables in this leafl et. Capacities for the required refrigerant and temperature difference can be calculated with the help of the correction factors. The exact selection is made by FincoilSelect software, which is available either on CD-rom or on our web page ncoil.fi. Selection of circuiting and liquid distributor for air coolers is made according to each specifi c dimensioning condition and refrigerant. If the circuiting is unknown, following information is needed: refrigerant, cooling capacity, evaporation temperature, air inlet temperature, relative humidity and incoming liquid temperature (if lower than +20ºC). In the selection of liquid circulated air coolers is following information needed: cooling capacity, liquid / concentration, liquid temperature in/ out, air inlet temperature / relative humidity, max. allowed liquid pressure drop and allowed sound level in a nominal point. Our sales department will help you with the selection, if the needed conditions are outside of the selection program s operations.

4 4 Performance data FMP R404, SC2, EN 328 3/400 V/50 Hz Fin spacing 4 mm Fin spacing 7 mm Fin spacing 12 mm Fan Ø No. of fans Fin spacing 4 mm Fin spacing 7 mm Fin spacing 12 mm Fan Ø No. of fans Correction factors for evaporating capacity R404 T1 [K] Evaporating temperature t e [ C] throw with 7 mm fin spacing 1400 [m] throw is given with final air velocity 0.5 m/s.

5 5 Influence of humidity on the capacity Standard conditions Evaporating temperature t e [ C] Temperature difference T1 [K] Relative humidity Fixed ratio SC % 1.35 SC % 1.15 SC % 1.05 SC % 1.01 Capacities for different refrigerants Refrigerant SC1 SC2 SC3 SC4 R134a R R404/R Fixed ratios specified in the Eurovent Standard to convert the standard capacity (dry capacity), which is measured according to EN 328, into the nominal capacity (wet capacity) suitable for practical conditions. Technical data of fan motors 3/400 V/50 Hz Fan Ø mm Power input Power input Power input Power input Electric defrost capacities for 3/400 V and 3/230 V SS SS Drip tray Coil Total

6 6 Dimensional drawings 1) Junction boxes for electric defrost. 2) Space for exchanging defrost heaters. Defrost heaters can also be extracted from the opposite side by cutting their connecting lead. 3) FMP-213, -223, -224 and -233: drainage connection R2 without angle connection. Dimensions and weight Dimensions mm Fixing points mm Internal volume C Net weight kg Fin spacing mm L B H E F G C D ERC00188EN 0805 lfa Laval reserves the right to change specifi cation without prior notifi cation. ncoil.fi