09LD/GD. Air-Cooled Condensers/Air-Cooled Fluid Coolers. Nominal cooling capacity kw 09LD/GD 09GD

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1 Air-Cooled Condensers/Air-Cooled Fluid Coolers 09LD/GD 09GD 09LD/GD Nominal cooling capacity kw The 09LD air-cooled condensers are designed for refrigeration plants where a halogenated hydrocarbon, such as R-22, R-502 etc. is used as the refrigerant. The 09GD fluid coolers are designed for cooling water or any fluid that does not corrode copper. The only difference from the 09LD condensers is in the physical data. The low-speed, low-noise versions of both unit types are particularly suited to sensitive applications, for example hospitals and offices. Features n Wide product range, based on modular principle - 38 different models in both horizontal and vertical units - for the most economic solution in each application n Several sound level classes and energy saving options n Low sound levels and high efficiencies. n Inherent reliability - the sturdy, corrosion-resistant construction, direct-drive fans, service doors and heat exchanger that is not prone to fouling ensure easy maintenance and a long service life. n Modular principle and motors built to IEC-standards. n Small internal volumes for reduced refrigerant charges. n Compact units, suitable for standard transport methods for reduced freight costs. n Factory-fitted safety switches on end-plates, vent points and lifting lugs reduce installation costs. 1

2 Standard models Heat exchanger The heat exchanger is the efficient Carrier F5 finned coil made of copper tubes and aluminium fins. Fin spacing is 2.5 mm. The fin collars cover the entire outside surface of the tubes. The close tube spacing and the specially corrugated fins make the heat exchanger extremely efficient. The fins are compact, without dirt accumulating cut edge turbulators. Headers are made of copper or of painted steel. Standard tube connections are made of copper, for larger sizes they are also available in steel. Headers are provided with plugged nipples for venting. If required, the heat exchanger can be divided into several circuits. Fans The direct-drive axial fans are statically and dynamically balanced. The low sound level has been achieved through the combination of high efficiency, aerodynamic construction, adequate vibration damping and low fan speeds. The motors are totally enclosed, squirrel-cage motors, built to IEC-standards for outdoor use. Protection class IP54, except for the condensation drains. The motors are prewired to lockable safety switches (IP55) on the end plates of the condensers. Locks are not included. Casing All parts are made of stainless or corrosion-protected material. The casing, legs, fan brackets, bolts and lifting eyes are made of hot-dip galvanized steel. The fan guards are made of plastic-coated steel. Correction factors for 3.0 and 4.0 mm fin spacing Fin spacing Condenser capacity mm Speed Fin spacing Air flow Surface mm Speed area factor Fans For 60 Hz supplies, the condenser motors and unit performance will change. Please contact Carrier for further information. Accessories Safety switches (Option Q) Safety switches are installed adjacent to the fans. Spray system (option N ) The condensers can be equipped with a water spray system (option N), which considerably increases the condensing capacity during periods of high ambients. Junction boxes (alternative) The fan safety switches can be replaced by junction boxes, protection class IP55. Condenser selection The notes on the next page can be used to determine the capacity for a temperature difference other than the nominal 15 K. Capacity control Partitions are provided between the fans for effective control of the head pressure by fan cycling. In standard models the partitions are mounted transversely and are equipped with service doors. Optional equipment Heat exchanger n For conditions requiring special corrosion protection the coil can be surface-treated, or special materials can be used: - chromated fins - fins of epoxy- or vinyl-coated aluminium (condenser capacity reduced by 7% compared with standard model) - copper fins - tinned copper fins - tinned copper tubes and fins (only in sizes 12-18) or 4.0 mm fin spacing is available to special order. 2

3 Product Designation Standard model: 09LDE H D Design series 38 Size 2 Number of fans 09 Fan diameter 8 Fan speed 6 = 15.0 r/s - 8 = 11.7 r/s 10 = 8.3 r/s - 12 = 7.5 r/s 16 = 5.8 r/s 9 Power supply 8 = 230 V, 3 ph, 50 Hz / 9 = 400 V, 3 ph, 50 Hz H/V Horizontal air flow/vertical air flow Additional marking (if necessary): J-10:10-N-Q J Multiple circuits 10:10 Multi-circuit section N Nozzles for water spray Q Safety switches Non-standard model: 09GDE H-50 DN65 G Design series E Non standard model 38 Size 2 Number of fans 09 Fan diameter 8 Fan speed 6 = 15.0 r/s - 8 = 11.7 r/s 10 = 8.3 r/s - 12 = 7.5 r/s 16 = 5.8 r/s 9 Power supply 8 = 230 V, 3 ph, 50 Hz / 9 = 400 V, 3 ph, 50 Hz H/V Horizontal air flow/vertical air flow 50 Number of passes DN Type of pipe connections DN = flange R= outside thread 80 Pipe connection size Additional marking (if necessary): J-10:10-N-Q J Multiple circuits 10:10 Multi-circuit section N Nozzles for water spray Q Safety switches Selection tables Fan speed designation 1) Fan 2) 914-L 914-L 914-L 914-L 914-L Speed 5.8 r/s 7.5 r/s 8.3 r/s 11.7 r/s 15.0 r/s Motors 0.14 kw A 0.37 kw A 0.55 kw A 1.2 kw - 5.0A 2.5 kw A Size CAP 3) Flow SPL 1) CAP 3) Flow SPL 1) CAP 3) Flow SPL 1) CAP 3) Flow SPL 1) CAP 3) Flow SPL 1) 09LD LD LD LD LD LD LD LD CAP - Condenser capacity, kw Flow - Condenser air flow, m 3 /s SPL - Sound pressure level, db(a) 1) Sound pressure level at a distance of 10 m from the middle point of the condenser in freefield conditions. 2) The figure given for the fan type indicates the diameter (mm) and the letter the pitch angle (L= low). The indicated motor data are nominal values. Power supply 380 V, 3 ph, 50 Hz, air temperature +40 C. The values may change for a change in motor type or rating. A ±20% provision for adjustment should therefore be made in the overcurrent protection. 3) Condenser capacity for temperature differences other than 15 K may be obtained by multiplying the nominal value by the correction factor Kn, shown below. All values are based on refrigerant R-22. t (K) Kn Standard tubing suitable for temperature differences from 12 to17 K. 3

4 Physical data (09LD condensers) Dimensions A-H and the dimensions in the drawings are in millimetres. Sound level class 16, 12, 10 09LD x54 2x x1 09LD x54 2X X1 09LD x42 4x x1 09LD x x63 2x x1 09LD x x63 2x x1 09LD x x42 4x x1 09LD x x42 4x x1 09LD x x42 4x x1 Sound level class 8, 6 09LD x63 2x x1 09LD x63 2x x1 09LD x54 4x x1 09LD x x54 2x x1 09LD x x54 2x x1 09LD x x54 4x x1 09LD x x63 4x x1 09LD x x63 4x x1 SA Surface area, m 2 IV Internal volume, l Weight Net weight, kg TC Tube connection R Flow Spray system water flow, m 3 /h 1) Finned coil F5, fin spacing 2,5 mm. 2) Weight of basic model comprising aluminium fins and aluminium casing. Approximate additional weights to table values (from smallest to largest size): packaging 25-30%, copper fins 35-45%, steel casing 20-25%. More accurate values provided on request 3) With 3,0 bar water pressure 4) Safety switches (or junction boxes) 5) Service doors 6) Tube connection for water nozzle system (D) 4

5 Physical data (09LD condensers) Dimensions A-H and the dimensions in the drawings are in millimetres. Sound level class 16, 12, 10 09LD x54 2x x1 09LD x54 2X X1 09LD x42 4x x1 09LD x x63 2x x1 09LD x x63 2x x1 09LD x x42 4x x1 09LD x x42 4x x1 09LD x x42 4x x1 Sound level class 8, 6 09LD x63 2x x1 09LD x63 2x x1 09LD x54 4x x1 09LD x x54 2x x1 09LD x x54 2x x1 09LD x x54 4x x1 09LD x x63 4x x1 09LD x x63 4x x1 SA Surface area, m 2 IV Internal volume, l Weight Net weight, kg TC Tube connection R Flow Spray system water flow, m 3 /h 1) Finned coil F5, fin spacing 2,5 mm. 2) Weight of basic model comprising aluminium fins and aluminium casing. Approximate additional weights to table values (from smallest to largest size): packaging 25-30%, copper fins 35-45%, steel casing 20-25%. More accurate values provided on request 3) With 3,0 bar water pressure 4) Safety switches (or junction boxes) 5) Service doors 6) Tube connection for water nozzle system (D) 4

6 Physical data (09GD fluid coolers) Dimensions A-F and the dimensions in the drawings are in millimetres. Fluid coolers Size A B C D F SA1) IV Weight 2) Flow 3) TC 09GD x1 09GD X1 09GD x1 09GD x x1 09GD x x1 09GD x x1 09GD x x1 09GD x x1 SA Surface area, m 2 IV Internal volume, l Weight Net weight, kg TC Tube connection R Flow Spray system water flow, m 3 /h 1) Finned coil F5, fin spacing 2,5 mm. 2) Weight of basic model comprising aluminium fins and aluminium casing. Approximate additional weights to table values (from smallest to largest size): packaging 25-30%, copper fins 35-45%, steel casing 20-25%. More accurate values provided on request 3) With 3,0 bar water pressure 4) Safety switches (or junction boxes) 5) Service doors 6) Tube connection for water nozzle system (D) 5