Room Fan Coils Idrofan Quality Management Systems 42N Total cooling capacity 0.75-6.35 kw Total heating capacity 0.60-9.50 kw The new generation 42N_S product range combines aesthetic and attractive design with versatility to satisfy any application need, from large office buildings or hotels to shops and residential applications. This new product series is characterised by concentrated, innovative technology, unusual for a fan coil. The result is a product that is easy to select and install. The 42N_S is available with a new-generation three- or five-speed AC motor. The range now includes seven sizes, with air flows from 35 to 422 l/s (26 to 520 m 3 /h). The Idrofan offers an ultra-lownoise option for applications where a low noise level is the most important selection parameter. The new Idrofan is available with two types of fans, a tangential fan for the smallest size 5 and a centrifugal fan for all other sizes. The fan versions are available in any combination, from cabinet models for floor or under-ceiling installation to models without cabinet for furred-in or ceiling void horizontal or vertical installation. Features With its sleek styling the 42N_S cabinet units blend in perfectly with any room décor. The pre-painted steel panels are protected by a high-quality paint finish. The flexibility of the plastic-moulded unit drain pan allows the same unit to be installed in a vertical or horizontal position without the need for a dedicated accessory. Integrated, factory-mounted cooling and heating coil for four-pipe applications. The 42N_S units were designed for extremely quiet operation with sound levels that set new comfort standards for buildings. The new fan/motor assembly design ensures whisper-quiet operation (0 db(a) less compared to the previous version). Particular attention has been given to the low fan speed, typically used at night. Motors The Idrofan is available with a multi-speed motor, extended to five fixed speeds to improve its flexibility and cover all customer applications. The Idrofan is now available with ultra-low noise levels to make it one of the quietest fan coils on the market.
Filters The standard filter for the Idrofan series has a pleated filtration surface, resulting in a 87% larger surface than a conventional filter, with the following additional advantages: Lower air flow per unit area, resulting in lower pressure drop and reduced noise level. The average interval between filter cleaning is three times longer, compared to standard filters. The filter material is polypropylene and the grade is EU. As an option the Idrofan is also available with 85% gravimetric (EU3 or G3) filters with fire class M. In the Idrofan series the filter is located at the bottom of the unit. Cleaning is easy: after removing a safety screw, the filter sides can be manually unclipped. The filter frame can be pulled down and the filter can then be removed easily. Re-assembly is just as easy, reversing the sequence. The filter and filter position within the unit are designed to prevent air bypass around the filter, to ensure that the air is always filtered and clean. Ease of installation The Idrofan series fan coils are extremely easy to install. For horizontal under-ceiling installations with cabinet or ducted ceiling-void applications the installer s task is significantly simplified. Robust hooks allow easy and fast attachment of the unit. No calculations are needed to determine the correct slope for proper condensate water drainage. For concealed ducted applications, both air intake and outlet flange can be mounted on the unit before installing them together as a single piece in the false ceiling. Even the installation of floor-mounted units is simple, the new hook dimensions and positions help fixing the units firmly against the wall. All these design aspects minimise installation time and improve the long-term reliability, avoiding small mistakes that could impair the reliability of installed units over time. Carrier controller range The Idrofan fan coil is available with the complete range of Carrier controllers. Several tests ensure easy installation. The number of available controllers offers more and improved features, and easy selection according to application needs. Electronic thermostat This is available for two-pipe (type A), four-pipe or two-pipe applications with electric heaters (type B). The thermostats have an elegant square shape with two coaxial knobs to set room temperature and fan speed, as desired by the customer. Wall-mounted controls are easily and discreetly integrated in any room environment. Features of the electronic thermostats A and B Set range: From 0 C to 30 C with the possibility to limit the temperature in public buildings where low energy consumption is a key requirement via a dip-switch inside the control. The following limitations can be set: Cooling mode: minimum set point allowed - 23 C Heating mode: maximum set point allowed - 20 C Auto fan: The fan speed is automatically set by the control; when the room temperature is far from the set point, high fan speed is selected. As the room temperature approaches the desired value, the fan speed decreases until the minimum speed is reached. Automatic changeover: Automatic changeover from the cooling to heating mode, based on the water temperature, ensures that the ideal room temperature is maintained. Remote changeover: Automatic changeover from cooling to heating mode, based on the remote signal from the monitoring system. Warm and cold draught protection: This feature stops the fan when the set point condition is satisfied and the water temperature is too low or too high, ensuring that air that is too cold or too warm does not cause discomfort to the room occupants. Air sensor: This is unit-mounted if the control is wallmounted, a second air sensor located in the control can be used for fine tuning of the desired room temperature. Frost protection: This function ensures that the room temperature is kept above a minimum level. If the unit is in off mode, and the room temperature drops below 7 C, frost protection is enabled and the unit operates in heating mode until the temperature rises above 9 C. At this point the unit is switched off again. Booster heating management optimisation (available with electric heater option): if the water temperature is below 30 C the system will work in the heat demand mode and the electric heater will be the only available heating source. If the water temperature is above 35 C the system will work in the booster heating mode, energising the water valve and electric heater together. The booster heating function will be deactivated if the water temperature is above 45 C (the electric heater will be deenergised). Energy saving: This feature allows saving energy when the room is unoccupied, without the need to switch off the unit. When the energy-saving button is pressed, the actual set point will be modified as follows, without changing the position of the set point selection knob: Cooling mode: Set point raised by 4 C Heating mode: Set point lowered by 4 C The unit will resume normal operation, once the energysaving button is pressed again. HDB (Hydronic Dual Board) This electronic thermostat allows master/slave operation. The master unit can manage up to 5 slave units. This controller can be used with a wall-mounted user interface or a remote end user control. NTC controller This is a communicating PID controller, combining energysaving algorithms and full control function solutions, compatible with the Aquasmart Evolution system package. Valve options Valve body: both the two-way or four-way (three-way with integrated bypass) valve options are factory-fitted and tested. The valves are fully insulated within a moulded insulating shell, preventing condensation on the valve body, for both vertical and horizontal applications. This new shell reduces the complexity of the offer and prevents water leakage risk. Valves can be factory-fitted on the left or right-hand side. Valve actuators: a wide choice of actuators is available with two or four-way valve bodies to offer the right solution for any controller type and customer requirement, from on/off to proportional types, with either 230 V or 24 V power supply: - On/off 230 V actuator - On/off 24 V actuator - Floating 3-point 230 V actuator - Floating 3-point 24 V actuator - Modulating 0-0 V/24 V actuator 2
Main drain pan and insulation The main drain pan incorporates innovative technological solutions: Horizontal installation: the units can be installed perfectly horizontal - the drain pan structure takes care of the slope, so that the installer avoids complex and timeconsuming computations to correctly install the units. Left or right-hand condensate connection is standard - the installer can easily choose unit connection on one side or the other, just by fixing the plastic cap on the opposite side. Insulation: the drain pan design allows much tighter contact between drain pan and insulation, reinforced by metal clips to keep the insulation in place. This improves reliability and prevents water dripping from the unit. The drain pan for the whole range is made of moulded plastic, i.e. more robust, easier and safer to service. PTC electric heater Electric heater options have been enhanced with the latest PTC (positive temperature coefficient) technology. Their resistance increases as their temperature increases, so the capacity goes down accordingly. This electric heater feature allows fast heating at start-up, the heating capacity is adjusted automatically, whilst ensuring safe and reliable operation. This option is available in low and high capacity for each Idrofan size. Feet mounting The installation of feet has been greatly simplified and both sides are painted. Just one clip is needed to fix the feet to the units. For this reason and for better reliability during transport, the feet are sold as options - supplied with the unit from the factory (ordering codes Z or P in the 4th digit). They are included with the unit, but not factory-mounted. Reversibility If the unit received is not as required, the coil and the control box can be switched on site from left to right or vice versa (except units equipped with valves - since their installation is optimised for each side, the valve package must be replaced by a new valve kit). Simplified accessories The number of accessories has been reduced to simplify selection and reduce the inventory level. The accessories offered remain unchanged to satisfy any application needs, but the number of codes has been greatly reduced. Aesthetics Supporting feet Supporting feet and cover panel Return air grille for cabinet unit Rear closing panel Cabinet on concealed units, Discharge air sleeve (concealed units only) Supporting brackets (20 + 20 pieces left and right) Controllers and user interfaces A-type thermostat B-type thermostat Kit for 33TA000/33TB000 installation on 42NM/Z Cold draught prevention kit - all two-pipe sizes Automatic changeover switch - all units Air sensor with 5 m cable Water sensor kit with 5 m cable Infrared remote controller (IR2) Infrared remote receiver kit (IRR) ZUI interface - Wago ZUI2 interface 2 - RJ SUI (with fan speed selection) SUI2 (without fan speed selection) The units comply with international standards EN60335- and EN60335-2-40 and are certified according to the applicable Eurovent standards for the non-ducted fan coil programme. 3
Physical and electrical data, two-pipe coil 42N_S, 2-pipe coil 5 20 26 Fan speed 5 4 3 2 5 4 3 2 3 2 Fan type One, tangential One, centrifugal One, centrifugal Air flow l/s 35 56 69 84 97 59 80 92 07 28 93 49 96 m 3 /h 25 200 250 300 350 25 285 330 385 460 335 536 706 Cooling mode* Total cooling capacity kw 0.83.07.9.34.49.39.8 2.08 2.34 2.54 2.0 3.00 3.60 Sensible cooling capacity kw 0.70 0.93.03.9.3.03.42.60.85 2.03.65 2.35 2.90 Water flow rate l/s 0.04 0.05 0.06 0.06 0.07 0.07 0.09 0.0 0. 0.2 0.0 0.4 0.7 l/h 43 84 205 230 256 239 3 358 402 437 36 56 69 Water pressure drop kpa 6.2 9.6.5 4. 6.9 2.8 4.2 5.3 6.4 7.3 5.4 9.5 2.7 Heating mode** Heating capacity kw.4.42.66.89 2.09.70 2.0 2.54 2.87 3.8 2.56 3.68 4.38 Water pressure drop kpa 4.9 7.8 9.4.6 4.0 2.2 3.4 4.3 5.2 6.0 4.4 7.8 0.6 Water content l 0.6 0.6 0.6 0.6 0.6.4.4.4.4.4.4.4.4 Sound levels Sound power level db(a) 28 37 42 47 5 29 38 42 46 50 44 54 6 Sound pressure level*** db(a) 9 28 33 38 42 20 29 33 37 4 35 45 52 NR value 5 24 28 34 39 4 24 29 33 36 3 40 48 Electrical data Power input W 6 7 9 23 30 29 30 3 34 36 45 55 65 Current drawn A 0.08 0.08 0.09 0. 0.3 0.3 0.3 0.4 0.5 0.6 0.2 0.25 0.30 Electric heater High capacity W 800 000 000 Current drawn A 3.48 4.35 4.35 Low capacity W 500 500 500 Current drawn A 2.8 2.8 2.8 Eurovent data FCEER 55 55 50 Energy class FCEER D D E FCCOP 76 68 6 Energy class FCCOP D E E Connection diameter in 3/4 gas 3/4 gas 3/4 gas 42N_S, 2-pipe coil 30 42 45 65 Fan speed 5 4 3 2 3 2 5 4 3 2 3 2 Fan type Two, centrifugal Two, centrifugal Two, centrifugal Two, centrifugal Air flow l/s 97 26 53 82 207 47 222 268 46 85 224 277 333 237 33 422 m 3 /h 350 455 550 655 745 53 798 965 525 665 805 995 95 853 9 59 Cooling mode* Total cooling capacity kw 2.07 2.54 3.0 3.46 3.70 3.00 4.00 4.50 2.60 3.37 3.98 4.74 5.45 3.90 5.45 6.35 Sensible cooling capacity kw.40.96 2.35 2.84 3.0 2.35 3.30 3.85 2.2 2.78 3.30 3.98 4.55 3.20 4.6 5.0 Water flow rate l/s 0.0 0.2 0.4 0.7 0.8 0.4 0.9 0.22 0.2 0.6 0.9 0.23 0.26 0.9 0.26 0.30 l/h 356 437 58 595 636 56 688 774 447 580 685 85 937 67 937 092 Water pressure drop kpa 6.0 8.6.5 4.6 6.4.4 8.8 23.0 3.2 5.0 6.7 9.0.5 6.4.5 5.0 Heating mode** Heating capacity kw 2.86 3.54 4.8 4.80 5.29 4.05 5.55 6.40 4.00 5.05 5.90 6.90 8.08 6.0 8.00 9.50 Water pressure drop kpa 4.8 6.9 9.2.7 3. 9.2 5.0 8.4 2.7 4.2 5.5 7.5 9.5 5.4 9.5 2.3 Water content l.8.8.8.8.8.8.8.8 2. 2. 2. 2. 2. 2. 2. 2. Sound levels Sound power level db(a) 36 42 47 5 54 47 57 62 4 47 53 57 62 54 62 68 Sound pressure level*** db(a) 27 33 38 42 45 38 48 53 32 38 44 48 53 45 53 59 NR value 22 29 33 37 40 3 44 49 28 34 40 43 48 40 49 54 Electrical data Power input W 42 44 46 50 57 45 75 00 69 77 83 92 28 90 25 65 Current drawn A 0.9 0.20 0.2 0.23 0.25 0.2 0.35 0.45 0.3 0.34 0.37 0.4 0.55 0.4 0.55 0.72 Electric heater High capacity W 2000 2000 2000 2000 Current drawn A 8.70 8.70 8.70 8.70 Low capacity W 000 000 000 000 Current drawn A 4.35 4.35 4.35 4.35 Eurovent data FCEER 55 59 4 43 Energy class FCEER D D E E FCCOP 77 8 63 66 Energy class FCCOP D D E E Connection diameter in 3/4 gas 3/4 gas 3/4 gas 3/4 gas * Eurovent conditions: Entering air temperature = 27 C db/9 C wb entering/leaving water temperature = 7 C/2 C, high fan speed ** Eurovent conditions: Entering air temperature = 20 C, entering water temperature = 50 C, same water flow rate as in cooling *** Based on a hypothetical acoustic attenuation for the room and the air distribution system of -9 db(a) 4
Physical and electrical data, four-pipe coil 42N_S, 4-pipe coil 5 20 26 Fan speed 5 4 3 2 5 4 3 2 3 2 Fan type One, tangential One, centrifugal One, centrifugal Air flow l/s 35 56 69 84 97 59 80 92 07 28 93 49 96 m 3 /h 25 200 250 300 350 25 285 330 385 460 335 536 706 Cooling mode* Total cooling capacity kw 0.75.05.6.36.47.9.45.66.9 2.06.70 2.32 2.74 Sensible cooling capacity kw 0.66 0.89.0.9.25.00.23.4.60.72.40.94 2.38 Water flow rate l/s 0.04 0.05 0.06 0.06 0.07 0.06 0.07 0.08 0.09 0.0 0.08 0. 0.3 l/h 29 8 200 234 253 205 249 286 329 354 292 399 47 Water pressure drop kpa 5. 9. 0.8 4.2 6.3.8 2.5 3. 4.0 4.5 3.2 5.5 7.3 Water content l 0.6 0.6 0.6 0.6 0.6........ Heating mode** Heating capacity kw 0.60 0.99.4.35.5.83 2.2 2.46 2.68 2.87 2.50 3.6 3.85 Water flow rate l/s 0.0 0.02 0.03 0.03 0.04 0.04 0.05 0.06 0.06 0.07 0.06 0.08 0.09 l/h 52 85 98 6 30 57 90 22 230 247 25 272 33 Water pressure drop kpa 0.6.4.8 2.3 2.8 4.0 5.5 6.6 7.7 8.7 6.8 0.3 4.5 Water content l 0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Sound levels Sound power level db(a) 27 39 43 48 5 29 38 42 46 50 44 54 6 Sound pressure level*** db(a) 8 30 34 39 42 20 29 33 37 4 35 45 52 NR value 5 24 28 34 39 4 24 29 33 36 3 40 48 Electrical data Power input W 6 7 9 23 30 29 30 3 34 36 45 55 65 Current input A 0.08 0.08 0.09 0. 0.3 0.3 0.3 0.4 0.5 0.6 0.2 0.25 0.30 Eurovent data FCEER 52 46 40 Energy Class FCEER E E E FCCOP 46 69 56 Energy Class FCCOP F E E Connections Connection diameter (cooling) in 3/4 gas 3/4 gas 3/4 gas Connection diameter (heating) in /2 gas /2 gas /2 gas 42N_S, 4-pipe coil 30 42 45 65 Fan speed 5 4 3 2 3 2 5 4 3 2 3 2 Fan type Two, centrifugal Two, centrifugal Two, centrifugal Two, centrifugal Air flow l/s 97 26 53 82 207 47 222 268 46 85 224 277 333 237 33 422 m 3 /h 350 455 550 655 745 53 798 965 525 665 805 995 95 853 9 59 Cooling mode* Total cooling capacity kw 2.02 2.45 2.75 3.02 3.33 2.65 3.36 3.78 2.75 3.30 3.90 4.36 5.00 4.04 4.94 5.73 Sensible cooling capacity kw.57.95 2.22 2.47 2.73 2.3 2.83 3.22 2.5 2.60 3.5 3.55 4.2 3.25 4.08 4.85 Water flow rate l/s 0.0 0.2 0.3 0.4 0.6 0.3 0.6 0.8 0.3 0.6 0.9 0.2 0.24 0.9 0.24 0.27 l/h 347 42 473 59 573 456 578 650 473 568 67 750 860 695 850 986 Water pressure drop kpa 5. 7.2 8.8 0.3 2.2 8.2 2.4 5.2 9.9 3.6 8.2 22. 28. 9.4 27.5 35.6 Water content l.5.5.5.5.5.5.5.5.8.8.8.8.8.8.8.8 Heating mode** Heating capacity kw 2.73 3.4 3.5 3.82 4.27 3.36 4.39 5.00 3.90 4.50 5.00 5.60 6.0 5.2 6.05 7. Water flow rate l/s 0.07 0.08 0.08 0.09 0.0 0.08 0.0 0.2 0.09 0. 0.2 0.3 0.5 0.2 0.4 0.7 l/h 235 270 302 329 367 289 378 430 335 387 430 482 525 440 520 6 Water pressure drop kpa 0.0 2.7 5.4 7.9 2.7 4.3 22.7 28.5 20.5 26.4 3.8 38.9 45.2 33.2 44.6 59.2 Water content l 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Sound levels Sound power level db(a) 36 42 47 5 54 47 57 62 4 47 53 57 62 54 62 68 Sound pressure level*** db(a) 27 33 38 42 45 38 48 53 32 38 44 48 53 45 53 59 NR value 22 29 33 37 40 3 44 49 28 34 40 43 48 40 49 54 Electrical data Power input W 42 44 46 50 57 45 75 00 69 77 83 92 28 90 25 65 Current input A 0.9 0.20 0.2 0.23 0.25 0.2 0.35 0.45 0.3 0.34 0.37 0.4 0.55 0.4 0.55 0.72 Eurovent data FCEER 52 5 42 42 Energy Class FCEER E E E E FCCOP 69 66 57 53 Energy Class FCCOP E E E E Connections Connection diameter (cooling) in 3/4 gas 3/4 gas 3/4 gas 3/4 gas Connection diameter (heating) in /2 gas /2 gas /2 gas /2 gas * Eurovent conditions: Entering air temperature = 27 C db/9 C wb entering/leaving water temperature = 7 C/2 C, high fan speed. ** Eurovent conditions: Entering air temperature = 20 C, entering water temperature = 70 C, high fan speed, water temperature differnce = 0 K. *** Based on a hypothetical acoustic attenuation for the room and the air distribution system of -9 db(a). 5
Dimensions, vertical units with cabinet 42N_S 5-20-26-30-42-45-65 657 557 00 453 NR2 (23.5 x 8.5) slots for wall fastening NR2 (25 x 5) slots for wall fastening Drain connection o.d. 20 mm 249 229 B Cold water inlet 3/4 gas female Hot water outlet /2 gas female 38 Cold water outlet 3/4 gas female 64 33 64 20 Hot water inlet /2 gas female 00 302 346 445 482 220 C Feet cover + support (optional) A All dimensions are in mm. 42N 5 20-26 30-42 45-65 A 830 030 230 430 B 332 532 732 932 C 432 632 832 032 Filter dimensions 89 x 39 89 x 59 89 x 790 89 x 990 Weight kg 7 9 22 35 6
Dimensions, horizontal units with cabinet 42N_S 5-20-26-30-42-45-65 Hot water outlet /2 gas female Cold water outlet 3/4 gas female Cold water inlet 3/4 gas female Hot water inlet /2 gas female 28,5 38 20 A 252 64 33 229 64 Drain connection o.d. 20 mm NR2 (23.5 x 8.5) slots for wall fastening C 28,5 252 68 00 302 346 445 482 557 657 NR2 (25 x 5) slots for wall fastening 249 B 453 All dimensions are in mm. 42N 5 20-26 30-42 45-65 A 830 030 230 430 B 332 532 732 932 C 432 632 832 032 Filter dimensions 89 x 39 89 x 59 89 x 790 89 x 990 Weight kg 7 9 22 35 7
Dimensions, vertical concealed units 42N_S 5-20-26-30-42-45-65 2,5 B 58 Cold water inlet 3/4 gas female 20 64 33 64 38 Control NR2 (25 x 5) slots for wall fastening Hot water inlet /2 gas female Control box Drain connection o.d. 20 mm 55 60 55 453 Hot water outlet /2 gas female Cold water outlet 3/4 gas female 302 346 445 482 540 NR2 (23.5 x 8.5) slots for wall fastening 65 229 88 200 220 220 7 Supports (optional) Filter 00 68 00 min Motor (tangential version only) 42 A Control All dimensions are in mm. 42N 5 20-26 30-42 45-65 A 397 597 797 997 B 332 532 732 932 Filter dimensions 89 x 39 89 x 59 89 x 790 89 x 990 Weight kg 3 5 6 28 8
Dimensions, horizontal concealed units 42N_S 5-20-26-30-42-45-65 Hot water outlet /2 gas female Cold water outlet 3/4 gas female Hot water inlet /2 gas female Cold water inlet 3/4 gas female 220 50 A C 28,5 252 252 28,5 453 58 220 38 33 64 20 64 NR2 (23.5 x 8.5) slots for wall fastening Control box 00 min Motor (tangential version only) 229 302 346 445 482 58 NR2 (23.5 x 8.5) slots for wall fastening 68 Auxiliary drain pan (optional) o.d. 20 mm drain conn. NR2 (25 x 5) slots for wall fastening 7,5 B All dimensions are in mm. 42N 5 20-26 30-42 45-65 A 397 597 797 997 B 332 532 732 932 C 432 632 832 032 Filter dimensions 89 x 39 89 x 59 89 x 790 89 x 990 Weight kg 3 5 6 28 9
Typical mounting arrangements Vertical wall-mounted units 300 min NR2 (25 x 5) slots for wall fastening Horizontal ceiling-mounted units Double screw expansion fixing plug 68 min 252 00 min NR2 (23.5 x 8.5) slots for wall fastening 00 All dimensions are in mm. Optional air discharge duct INT All dimensions are in mm. 42N_S A 5 267 20-26 467 30-42 667 45-65 867 Air inlet and outlet opening dimensions 4 25 39 56 A 88 8 A All dimensions are in mm. 42N_S A 5 397 20-26 597 30-42 797 45-65 997 0
Valves Two-way valves OUT 25 66 350 273 Four-way valves 93 04 25 350 66 273 All dimensions are in mm. 93 04 33 44 Unit option (0th digit) H 4-way valve H 4-way valve H 4-way valve H 4-way valve G 2-way valve G 2-way valve G 2-way valve G 2-way valve Valve kit 42N985 42N986 42N987 42N988 42N994 42N995 42N996 42N997 Description /2 cold 3/4 cold /2 cold + /2 hot 3/4 cold + /2 hot /2 cold 3/4 cold /2 cold + /2 hot 3/4 cold + /2 hot 2-pipe S5 X - - - X - - - S20 & 26 X - - - X - - - S30 & 42 - X - - - X - - S45 & 65 - X - - - X - - 4-pipe S5 - - X - - - X - S20 & 26 - - X - - - X - S30 & 42 - - - X - - - X S45 & 65 - - - X - - - X
Two-pipe coil pressure drop Cooling conditions (entering water temperature = 7 C) 000 00 Pressure drop, kpa 2 3 4 0 0,0 0,0,00 42N_S5 2 42N_S30/42N_S42 3 42N_S20/42N_S26 4 42N_S45/42N_S65 Water flow, l/s Heating conditions (entering water temperature = 50 C) 000 00 Pressure drop, kpa 2 3 4 0 0,0 0,0,00 Water flow, l/s 42N_S5 2 42N_S30/42N_S42 3 42N_S20/42N_S26 4 42N_S45/42N_S65 2
Four-pipe coil pressure drop Cooling conditions (entering water temperature = 7 C) 000 00 Pressure drop, kpa 2 4 3 0 42N_S5 2 42N_S45/42N_S65 3 42N_S30/42N_S42 4 42N_S20/42N_S26 0,0 0,0,00 Heating conditions (entering water temperature = 70 C) Water flow, l/s 000 2 3 00 4 Pressure drop, kpa 0 42N_S45/42N_S65 2 42N_S30/42N_S42 3 42N_S20/42N_S26 4 42N_S5 0,0 0,0,00 Water flow, l/s 3
Two-way valve pressure drop 00,0 2 Pressure drop, kpa 0,0,0 0, /2", cold and hot 2 3/4" 0,0 0,0,00 Water flow, l/s Four-way valve pressure drop 00 2 3 4 Pressure drop, kpa 0 0, 0,0 0,0,00 Water flow, l/s /2" bypass, cold and hot 2 /2" open, cold and hot 3 3/4" bypass 4 3/4" open Notes: Pressure drop values are based on a water temperature of 20 C. For other water temperature values, use a correction factor of 0.4% per C. 4
Cooling capacities, two-pipe coil EWT C ΔT K 42N S5 42N S20 42N S26 42N S30 42N S42 42N S45 42N S65 Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed 2 3 4 5 2 3 4 5 2 3 2 3 4 5 2 3 2 3 4 5 2 3 Entering air temperature 7 C wb / 23 C db 5 3 T.57.4.25.2 0.87 2.96 2.64 2.35 2.07.60 4.06 3.4 2.37 4.46 4. 3.60 3.06 2.49 5.44 4.79 3.53 6.62 5.80 4.92 4.24 3.40 7.83 6.64 5.0 S.24.3 0.98 0.89 0.67 2.03.83.59.42.03 2.79 2.32.64 3. 2.84 2.36.99.43 3.86 3.30 2.35 4.57 4.02 3.37 2.87 2.23 5.5 4.62 3.3 5 5 T.4.27.3.0 0.78 2.34 2.7.93.68.28 3.28 2.79.95 3.39 3.7 2.73 2.30.88 4.2 3.68 2.74 4.89 4.24 3.55 2.98 2.24 5.65 4.89 3.36 S.6.05 0.9 0.83 0.62.75.6.40.24 0.90 2.45 2.04.44 2.65 2.43 2.00.67.20 3.29 2.83 2.02 3.84 3.35 2.78 2.33.75 4.29 3.88 2.64 5 7 T.23. 0.98 0.88 0.68.70.66.48.26 0.98 2.44 2.0.49 2.36 2.22.90.59.30 2.93 2.60.95 3.36 2.89 2.40.98.46 3.84 3.35 2.8 S.07 0.97 0.84 0.76 0.57.46.38.20.05 0.77 2.08.73.23 2.5.99.63.36 0.98 2.70 2.32.66 3.07 2.68 2.2.84.33 3.33 3.0.97 5 9 T.02 0.92 0.8 0.73 0.57.27.26.6.02 0.83.82.57.6.67.59.34.5.00 2.0.87.40 2.33.99.69.49.23 2.57 2.32.56 S 0.95 0.86 0.75 0.68 0.5.20.7.03 0.92 0.70.7.44.06.63.54.25.06 0.8 2.05.80.32 2.22.92.63.43.3 2.26 2.23.4 7 3 T.30.7.04 0.93 0.72 2.38 2.5.92.68.29 3.27 2.76.93 3.53 3.27 2.87 2.44 2.00 4.30 3.80 2.82 5.22 4.58 3.89 3.35 2.64 6.2 5.23 3.93 S.0.00 0.86 0.78 0.59.77.60.39.24 0.90 2.45 2.03.43 2.7 2.48 2.06.73.24 3.37 2.88 2.05 3.99 3.5 2.93 2.49.92 4.49 4.03 2.88 7 5 T.2.0 0.90 0.8 0.63.76.66.48.28 0.98 2.49 2.2.49 2.55 2.38 2.05.73.4 3.5 2.78 2.06 3.70 3.20 2.67 2.25.69 4.3 3.70 2.56 S.0 0.92 0.79 0.72 0.54.50.38.20.06 0.76 2..75.23 2.27 2.08.7.43.02 2.84 2.43.72 3.28 2.87 2.38 2.00.50 3.65 3.32 2.25 7 7 T 0.93 0.83 0.74 0.66 0.5.29.24. 0.96 0.78.86.58.2.82.7.46.22 0.99 2.28 2.0.49 2.6 2.24.85.53.20 2.99 2.60.66 S 0.90 0.82 0.7 0.64 0.48.23.7.0 0.90 0.67.74.46.04.77.65.35.2 0.8 2.22.92.39 2.48 2.6.78.47.0 2.63 2.50.50 7 9 T 0.78 0.70 0.62 0.55 0.43.02.0 0.93 0.82 0.66.39.2 0.93.22.8.04 0.92 0.8.55.38.07.69.52.36.2.00.78.69.25 S 0.78 0.70 0.62 0.55 0.42.00 0.99 0.88 0.79 0.60.36.8 0.90.20.6 0.98 0.86 0.68.52.34.03.6.47.3.6 0.92.56.62.3 9 3 T.0 0.9 0.8 0.73 0.56.80.64.45.27 0.98 2.47 2.09.47 2.65 2.46 2.6.84.49 3.23 2.86 2.3 3.93 3.45 2.92 2.49.96 4.64 3.94 2.94 S 0.95 0.86 0.75 0.68 0.5.52.37.8.05 0.77 2.0.74.22 2.33 2.3.77.48.06 2.89 2.47.76 3.43 3.02 2.5 2.2.64 3.86 3.47 2.47 9 5 T 0.83 0.74 0.66 0.59 0.46.32.23.09 0.94 0.72.86.57.0.94.80.55.30.06 2.42 2.2.55 2.84 2.45 2.04.72.3 3.36 2.84.98 S 0.83 0.74 0.66 0.59 0.45.26.7.0 0.89 0.65.77.47.04.88.74.43.9 0.86 2.35 2.02.45 2.70 2.36.96.64.2 2.95 2.72.79 9 7 T 0.70 0.63 0.56 0.50 0.38 0.98 0.95 0.86 0.76 0.6.42.20 0.86.36.28.09 0.9 0.77.7.5.2.93.65.35.7 0.96 2.5.92.2 S 0.70 0.63 0.56 0.50 0.38 0.97 0.95 0.84 0.76 0.57.39.8 0.86.34.26.03 0.85 0.65.68.47.08.83.59.30.2 0.89.89.84.0 9 9 T 0.58 0.52 0.46 0.4 0.32 0.80 0.78 0.72 0.64 0.52.04 0.94 0.72 0.89 0.88 0.80 0.7 0.63.02 0.96 0.82.26.6.04 0.93 0.76.30.26 0.95 S 0.58 0.52 0.46 0.4 0.32 0.79 0.78 0.7 0.64 0.49.02 0.92 0.72 0.87 0.86 0.75 0.67 0.53.00 0.93 0.79.20.2.00 0.89 0.7.4.2 0.86 3 T 0.72 0.65 0.57 0.5 0.40.3.8.05 0.92 0.7.83.53.06 2.0.85.60.35.09 2.47 2.6.57 3.0 2.60 2.8.86.47 3.62 3.02 2.24 S 0.72 0.65 0.57 0.5 0.40.27.5.00 0.89 0.65.77.46.03.95.79.49.24 0.89 2.4 2.08.48 2.86 2.5 2.09.77.36 3.8 2.89 2.03 5 T 0.62 0.55 0.49 0.44 0.34.0 0.93 0.83 0.7 0.56.43.20 0.83.48.37.8 0.99 0.80.84.62.8 2.5.85.54.28 0.95 2.5 2.5.44 S 0.62 0.55 0.49 0.44 0.34.00 0.93 0.82 0.7 0.54.4.8 0.83.45.35. 0.93 0.67.8.57.4 2.05.79.48.23 0.88 2.20 2.07.30 7 T 0.52 0.47 0.4 0.37 0.28 0.74 0.73 0.66 0.59 0.47.02 0.88 0.67 0.90 0.86 0.75 0.67 0.59.4.02 0.78.23.0 0.99 0.88 0.72.29.22 0.9 S 0.52 0.47 0.4 0.37 0.28 0.74 0.73 0.66 0.59 0.46.00 0.87 0.67 0.88 0.85 0.7 0.63 0.50.2 0.99 0.75.7.07 0.95 0.84 0.67.3.7 0.82 9 T 0.42 0.37 0.33 0.29 0.23 0.57 0.57 0.52 0.46 0.37 0.74 0.67 0.52 0.62 0.6 0.56 0.50 0.45 0.70 0.67 0.58 0.86 0.80 0.72 0.65 0.53 0.89 0.86 0.65 S 0.42 0.37 0.33 0.29 0.23 0.56 0.57 0.52 0.46 0.36 0.73 0.66 0.52 0.60 0.60 0.52 0.47 0.37 0.68 0.65 0.56 0.82 0.77 0.69 0.62 0.49 0.78 0.83 0.59 3 3 T 0.54 0.48 0.43 0.38 0.29.0 0.90 0.80 0.70 0.54.42.8 0.8.56.43.24.04 0.84.93.68.2 2.32 2.0.68.42.2 2.80 2.33.70 S 0.54 0.48 0.43 0.38 0.29.0 0.90 0.80 0.70 0.52.40.7 0.8.53.40.6 0.97 0.70.89.63.7 2.2.94.62.36.03 2.46 2.24.54 3 5 T 0.46 0.4 0.37 0.33 0.25 0.72 0.68 0.6 0.54 0.43.04 0.88 0.6.02 0.95 0.8 0.68 0.56.27.2 0.83.45.24.02 0.84 0.69.64.44 0.88 S 0.46 0.4 0.37 0.33 0.25 0.7 0.68 0.6 0.54 0.42.02 0.87 0.6.00 0.94 0.77 0.64 0.47.25.09 0.80.38.20 0.98 0.8 0.63.43.39 0.80 3 7 T 0.37 0.33 0.29 0.26 0.20 0.52 0.5 0.47 0.42 0.34 0.67 0.6 0.47 0.57 0.57 0.5 0.46 0.4 0.65 0.62 0.53 0.80 0.74 0.67 0.60 0.49 0.83 0.80 0.6 S 0.37 0.33 0.29 0.26 0.20 0.52 0.5 0.47 0.42 0.33 0.66 0.60 0.47 0.56 0.56 0.48 0.43 0.34 0.64 0.60 0.5 0.77 0.72 0.64 0.57 0.45 0.73 0.77 0.55 3 9 T 0.25 0.22 0.9 0.7 0.3 0.32 0.32 0.30 0.27 0.22 0.4 0.38 0.30 0.32 0.33 0.30 0.27 0.24 0.36 0.35 0.3 0.45 0.42 0.38 0.34 0.28 0.45 0.45 0.34 S 0.25 0.22 0.9 0.7 0.3 0.3 0.32 0.30 0.27 0.2 0.40 0.37 0.30 0.32 0.32 0.28 0.25 0.20 0.36 0.34 0.30 0.43 0.40 0.36 0.33 0.26 0.40 0.43 0.30 EWT Entering water temperature T Water temperature rise wb Wet bulb temperature db Dry bulb temperature T Total cooling capacity, kw S Sensible cooling capacity, kw 5
Cooling capacities, two-pipe coil EWT C ΔT K 42N S5 42N S20 42N S26 42N S30 42N S42 42N S45 42N S65 Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed 2 3 4 5 2 3 4 5 2 3 2 3 4 5 2 3 2 3 4 5 2 3 Entering air temperature 9 C wb / 25 C db 5 3 T.94.74.54.39.08 3.73 3.3 2.93 2.58 2.00 5.2 4.28 2.96 5.69 5.23 4.57 3.89 3.5 6.96 6.0 4.46 8.49 7.43 6.29 5.42 4.40 0.2 8.5 6.49 S.38.25.09 0.99 0.74 2.27 2.05.77.59.6 3.2 2.59.83 3.49 3.9 2.66 2.23.6 4.32 3.70 2.64 5.2 4.52 3.78 3.23 2.52 5.77 5.8 3.73 5 5 T.78.60.42.28 0.99 3.5 2.87 2.55 2.22.7 4.34 3.68 2.57 4.58 4.27 3.74 3.7 2.57 5.57 4.95 3.7 6.72 5.90 4.96 4.9 3.8 7.74 6.73 4.78 S.30.8.02 0.93 0.70 2.02.85.60.42.03 2.79 2.33.65 3.03 2.78 2.32.94.39 3.74 3.22 2.32 4.42 3.89 3.23 2.72 2.05 4.9 4.47 3.09 5 7 T.6.45.28.5 0.89 2.42 2.33 2.07.78.35 3.46 2.96 2.09 3.35 3.7 2.7 2.27.87 4.6 3.7 2.79 4.72 4.07 3.39 2.80 2.00 5.29 4.7 3.0 S.2.0 0.95 0.86 0.65.7.6.40.23 0.88 2.43 2.03.44 2.53 2.34.92.59.4 3.8 2.73.95 3.63 3.6 2.6 2.7.59 4.00 3.67 2.40 5 9 T.4.27.2.0 0.78.72.76.57.33.08 2.53 2.20.58 2.27 2.7.84.53.27 2.85 2.55.93 3.7 2.72 2.24.84.48 3.53 3.6.93 S..0 0.88 0.79 0.60.42.37.9.04 0.77 2.04.7.22 2.04.90.55.29 0.93 2.57 2.22.60 2.89 2.5 2.06.7.32 3.07 2.9.74 7 3 T.66.50.33.9 0.93 3.6 2.82 2.50 2.20.7 4.32 3.63 2.53 4.76 4.39 3.84 3.27 2.66 5.8 5. 3.76 7.07 6.20 5.26 4.53 3.66 8.36 7.08 5.37 S.23.2 0.97 0.88 0.67 2.02.82.58.4.03 2.78 2.30.63 3.0 2.83 2.35.98.42 3.84 3.29 2.34 4.55 4.0 3.35 2.85 2.23 5.2 4.60 3.30 7 5 T.50.35.20.08 0.83 2.52 2.34 2.08.80.38 3.5 2.99 2.0 3.62 3.40 2.95 2.48 2.03 4.39 3.93 2.96 5.27 4.57 3.83 3.22 2.43 6.03 5.27 3.63 S.5.05 0.9 0.82 0.62.75.6.40.24 0.90 2.45 2.04.44 2.64 2.43 2.0.67.20 3.28 2.82 2.02 3.85 3.37 2.79 2.34.76 4.29 3.90 2.66 7 7 T.30.7.04 0.94 0.73.8.78.59.35.02 2.60 2.24.60 2.49 2.35 2.0.68.38 3.09 2.75 2.07 3.54 3.05 2.53 2.09.50 4.0 3.53 2.28 S.06 0.96 0.83 0.75 0.57.46.38.20.05 0.75 2.08.73.23 2.6 2.00.64.36 0.98 2.7 2.33.67 3.0 2.7 2.23.86.35 3.40 3.3 2.02 7 9 T.07 0.96 0.86 0.77 0.60.30.30.8.04 0.85.89.63.9.73.65.39.7.0 2.8.94.45 2.43 2.07.72.50.23 2.70 2.42.56 S 0.94 0.86 0.74 0.67 0.5.20.6.0 0.9 0.68.72.45.04.67.58.28.06 0.80 2..84.34 2.3 2.00.66.43.3 2.37 2.32.4 9 3 T.38.24.0 0.99 0.77 2.54 2.30 2.04.80.39 3.48 2.94 2.06 3.77 3.50 3.06 2.6 2.4 4.58 4.06 3.02 5.56 4.89 4.6 3.58 2.85 6.5 5.57 4.8 S.09 0.99 0.86 0.78 0.59.76.60.38.23 0.90 2.43 2.02.42 2.70 2.47 2.05.72.24 3.35 2.87 2.04 3.97 3.49 2.92 2.48.92 4.47 4.02 2.87 9 5 T.9.07 0.95 0.86 0.67.88.78.59.37.05 2.65 2.26.60 2.69 2.52 2.7.83.50 3.3 2.95 2.9 3.89 3.37 2.82 2.37.78 4.5 3.89 2.68 S.00 0.9 0.79 0.7 0.54.49.38.9.05 0.76 2.0.75.23 2.27 2.08.7.42.02 2.83 2.43.72 3.29 2.87 2.38 2.00.50 3.68 3.32 2.26 9 7 T 0.98 0.88 0.78 0.70 0.54.33.29.6 0.99 0.79.92.64.6.87.76.50.26.03 2.34 2.07.54 2.68 2.30.9.58.20 3.09 2.68.74 S 0.90 0.8 0.70 0.64 0.48.23.6.0 0.89 0.66.75.46.04.79.67.37.4 0.82 2.25.94.40 2.54 2.22.83.5. 2.7 2.56.57 9 9 T 0.80 0.72 0.64 0.57 0.44.02.0 0.93 0.83 0.67.42.23 0.94.27.22.05 0.92 0.8.6.44.09.75.54.36.2.00.87.74.25 S 0.79 0.7 0.62 0.56 0.42.00 0.98 0.87 0.78 0.59.38.8 0.89.25.20 0.98 0.86 0.67.58.39.04.66.48.3.6 0.92.64.67.3 3 T.07 0.96 0.86 0.77 0.60.9.74.55.36.05 2.6 2.22.57 2.79 2.60 2.28.95.59 3.39 3.00 2.25 4.2 3.62 3.09 2.64 2.07 4.82 4.3 3.09 S 0.94 0.86 0.74 0.67 0.50.5.36.8.05 0.76 2.09.73.22 2.3 2..75.47.05 2.88 2.46.75 3.4 3.00 2.50 2.2.63 3.84 3.45 2.46 5 T 0.87 0.78 0.69 0.62 0.48.36.27.3 0.98 0.75.92.63.4.99.85.59.34.09 2.47 2.7.59 2.90 2.50 2.09.75.34 3.42 2.90 2.03 S 0.84 0.77 0.66 0.60 0.45.26.6.00 0.89 0.64.76.47.03.89.74.43.20 0.86 2.36 2.03.45 2.73 2.39.98.66.23 3.00 2.76.83 7 T 0.72 0.64 0.57 0.5 0.39.00 0.96 0.86 0.76 0.62.44.23 0.87.40.32.2 0.93 0.78.76.55.5.99.70.40.7 0.96 2.24.98.23 S 0.72 0.64 0.57 0.5 0.39 0.98 0.95 0.83 0.75 0.56.4.9 0.86.37.29.05 0.87 0.65.72.50.0.89.65.35.2 0.89.97.9. 9 T 0.59 0.53 0.47 0.42 0.32 0.80 0.78 0.72 0.64 0.52.04 0.94 0.72 0.89 0.88 0.80 0.7 0.63.04 0.97 0.82.26.6.04 0.93 0.76.3.26 0.95 S 0.59 0.53 0.47 0.42 0.32 0.79 0.78 0.7 0.64 0.48.02 0.92 0.72 0.87 0.86 0.75 0.67 0.53.02 0.94 0.79.20.2.00 0.89 0.7.5.2 0.86 3 3 T 0.75 0.67 0.60 0.54 0.42.35.22.09 0.95 0.73.87.57.0 2.04.88.64.38.2 2.50 2.9.6 3.04 2.65 2.22.89.49 3.64 3.05 2.27 S 0.75 0.67 0.60 0.54 0.42.27.4 0.99 0.88 0.64.76.46.02.95.78.48.24 0.88 2.4 2.07.47 2.86 2.52 2.09.77.36 3.9 2.90 2.04 3 5 T 0.63 0.56 0.50 0.45 0.34.02 0.94 0.83 0.72 0.56.44.2 0.84.50.39.20.00 0.8.87.64.9 2.9.89.57.3 0.98 2.57 2.9.48 S 0.63 0.56 0.50 0.45 0.34.0 0.94 0.82 0.72 0.54.42.9 0.84.47.37.3 0.94 0.68.84.59.5 2.09.82.5.26 0.90 2.25 2.0.34 3 7 T 0.52 0.47 0.42 0.37 0.29 0.74 0.72 0.66 0.59 0.47.04 0.89 0.67 0.93 0.89 0.76 0.67 0.59.8.05 0.79.28. 0.99 0.88 0.72.36.27 0.9 S 0.52 0.47 0.42 0.37 0.29 0.74 0.72 0.66 0.59 0.46.02 0.88 0.67 0.92 0.88 0.72 0.63 0.50.6.02 0.76.22.08 0.95 0.84 0.67.20.22 0.82 3 9 T 0.42 0.37 0.33 0.29 0.23 0.57 0.57 0.52 0.46 0.37 0.74 0.67 0.52 0.62 0.6 0.56 0.50 0.45 0.70 0.67 0.58 0.87 0.80 0.72 0.65 0.53 0.89 0.87 0.65 S 0.42 0.37 0.33 0.29 0.23 0.56 0.57 0.52 0.46 0.36 0.72 0.66 0.52 0.60 0.60 0.52 0.47 0.37 0.68 0.65 0.56 0.82 0.77 0.70 0.62 0.49 0.78 0.83 0.59 EWT Entering water temperature T Water temperature rise wb Wet bulb temperature db Dry bulb temperature T Total cooling capacity, kw S Sensible cooling capacity, kw 6
Cooling capacities, two-pipe coil EWT C ΔT K 42N S5 42N S20 42N S26 42N S30 42N S42 42N S45 42N S65 Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed 2 3 4 5 2 3 4 5 2 3 2 3 4 5 2 3 2 3 4 5 2 3 Entering air temperature 9 C wb / 27 C db 5 3 T.93.73.54.38.07 3.7 3.29 2.9 2.57.99 5.09 4.26 2.95 5.66 5.2 4.55 3.87 3.4 6.93 6.07 4.44 8.45 7.40 6.26 5.40 4.38 0.08 8.47 6.47 S.54.40.2.09 0.83 2.54 2.28.97.76.29 3.50 2.89 2.04 3.93 3.58 2.98 2.50.79 4.88 4.7 2.96 5.79 5.09 4.25 3.62 2.83 6.56 5.86 4.22 5 5 T.77.59.42.27 0.99 3.4 2.86 2.53 2.2.70 4.32 3.67 2.56 4.57 4.26 3.73 3.6 2.57 5.56 4.93 3.70 6.72 5.90 4.96 4.20 3.25 7.79 6.73 4.87 S.46.32.5.04 0.78 2.29 2.08.80.60.6 3.7 2.63.86 3.47 3.8 2.64 2.2.58 4.30 3.69 2.64 5.08 4.47 3.7 3.3 2.38 5.69 5.4 3.60 5 7 T.60.44.28.5 0.89 2.47 2.35 2.09.80.37 3.50 2.99 2. 3.52 3.30 2.84 2.38.95 4.36 3.86 2.87 5.07 4.39 3.66 3.07 2.28 5.86 5.07 3.43 S.37.24.08 0.97 0.73 2.00.85.6.42.02 2.82 2.34.65 3.0 2.76 2.27.89.36 3.77 3.23 2.29 4.36 3.80 3.5 2.64.97 4.85 4.40 2.96 5 9 T.40.26.2.0 0.78.92.87.67.42.3 2.75 2.36.68 2.68 2.52 2.5.80.47 3.35 2.96 2.20 3.84 3.30 2.74 2.27.7 4.42 3.84 2.50 S.27.5.00 0.90 0.68.73.63.42.24 0.92 2.46 2.06.46 2.54 2.35.93.60.6 3.8 2.75.97 3.6 3.5 2.60 2.5.58 3.88 3.64 2.26 7 3 T.66.49.32.9 0.92 3.4 2.80 2.49 2.9.70 4.30 3.62 2.5 4.73 4.37 3.82 3.25 2.65 5.78 5.08 3.74 7.03 6.6 5.23 4.5 3.64 8.32 7.04 5.34 S.39.27.0 0.99 0.75 2.29 2.05.78.59.6 3.6 2.6.83 3.54 3.22 2.68 2.25.6 4.40 3.75 2.66 5.2 4.58 3.82 3.25 2.54 5.90 5.28 3.79 7 5 T.49.34.9.07 0.83 2.54 2.34 2.08.8.39 3.53 3.00 2.0 3.70 3.46 3.0 2.54 2.07 4.50 4.00 3.00 5.45 4.74 3.98 3.37 2.60 6.35 5.45 3.90 S.3.9.03 0.93 0.70 2.03.85.60.42.03 2.83 2.35.65 3.0 2.84 2.35.96.40 3.85 3.30 2.35 4.55 3.98 3.30 2.78 2.2 5.0 4.60 3.20 7 7 T.29.6.04 0.93 0.72.97.86.66.43.09 2.79 2.37.68 2.84 2.64 2.27.9.56 3.53 3.0 2.29 4. 3.55 2.96 2.48.87 4.83 4. 2.84 S.2.0 0.96 0.86 0.65.77.64.42.25 0.90 2.49 2.07.46 2.65 2.44 2.0.68.20 3.32 2.85 2.03 3.83 3.35 2.77 2.32.72 4.2 3.87 2.56 7 9 T..00 0.89 0.80 0.62.56.50.34.7 0.94 2.25.9.35 2.2 2.07.77.47.2 2.76 2.43.80 3.7 2.72 2.25.86.46 3.63 3.7 2.0 S.0.00 0.87 0.78 0.59.50.43.24.0 0.83 2.4.80.28 2.6 2.02.65.37.00 2.70 2.35.70 3.02 2.63 2.7.78.35 3.9 3.04.8 9 3 T.37.23.09 0.98 0.76 2.54 2.29 2.04.79.38 3.47 2.93 2.05 3.79 3.5 3.07 2.62 2.4 4.62 4.08 3.02 5.63 4.94 4.20 3.62 2.92 6.66 5.64 4.29 S.25.3 0.98 0.89 0.67 2.03.83.58.4.03 2.8 2.32.63 3.5 2.87 2.38.99.43 3.9 3.34 2.36 4.64 4.08 3.40 2.89 2.25 5.26 4.70 3.38 9 5 T.8.06 0.95 0.85 0.66.99.84.64.42.09 2.79 2.36.65 2.96 2.74 2.37 2.00.63 3.63 3.20 2.36 4.36 3.78 3.6 2.68 2.08 5.8 4.36 3.4 S.6.05 0.9 0.82 0.62.79.63.4.25 0.9 2.50 2.07.45 2.75 2.5 2.07.73.24 3.4 2.93 2.07 4.0 3.5 2.9 2.46.87 4.49 4.05 2.8 9 7 T.02 0.9 0.8 0.73 0.56.59.48.32.4 0.88 2.25.90.33 2.33 2.6.86.56.26 2.90 2.54.86 3.40 2.93 2.43 2.04.53 4.00 3.40 2.33 S.02 0.9 0.8 0.73 0.56.54.43.24.0 0.80 2.6.8.28 2.27 2.0.73.44.04 2.84 2.45.76 3.23 2.83 2.34.95.4 3.5 3.26 2.0 9 9 T 0.89 0.80 0.7 0.63 0.49.27.22.0 0.97 0.78.83.55..77.67.42.8 0.99 2.22.96.45 2.5 2.5.77.50.23 2.82 2.5.57 S 0.89 0.80 0.7 0.63 0.49.26.22.08 0.97 0.73.79.52..74.64.33.0 0.83 2.8.90.40 2.39 2.08.70.44.4 2.48 2.4.42 3 T.06 0.96 0.85 0.77 0.60.98.78.58.39.07 2.7 2.28.60 2.97 2.74 2.40 2.05.67 3.64 3.9 2.36 4.45 3.89 3.30 2.84 2.27 5.34 4.46 3.40 S.06 0.96 0.85 0.77 0.59.79.6.39.24 0.90 2.48 2.05.43 2.78 2.53 2.0.76.26 3.45 2.94 2.08 4.0 3.60 3.0 2.56.98 4.62 4.5 2.98 5 T 0.92 0.82 0.73 0.65 0.5.59.44.28.2 0.86 2.23.87.29 2.4 2.22.92.6.30 3.00 2.6.89 3.58 3.09 2.58 2.9.7 4.30 3.58 2.60 S 0.92 0.82 0.73 0.65 0.5.55.42.23.09 0.80 2.7.80.27 2.36 2.7.79.50.08 2.93 2.52.80 3.4 2.99 2.49 2.09.58 3.78 3.44 2.35 7 T 0.8 0.73 0.64 0.58 0.44.29.20.06 0.92 0.73.84.55.07.88.75.50.26.02 2.35 2.06.5 2.73 2.35.95.62.2 3.7 2.73.80 S 0.8 0.73 0.64 0.58 0.44.28.20.06 0.92 0.70.8.52.07.85.72.4.8 0.86 2.3 2.00.45 2.60 2.27.88.55. 2.78 2.62.63 9 T 0.7 0.64 0.56 0.50 0.39.02 0.99 0.90 0.80 0.64.44.23 0.9.32.26.07 0.92 0.8.67.48..83.57.36.2.00.98.82.25 S 0.7 0.64 0.56 0.50 0.39.0 0.99 0.90 0.80 0.62.4.2 0.9.30.24.00 0.86 0.68.64.44.07.74.52.3.6 0.92.74.75.3 3 3 T 0.8 0.73 0.64 0.58 0.45.57.38.22.07 0.83 2.7.8.23 2.43 2.22.93.64.3 3.00 2.6.88 3.67 3.9 2.68 2.29.84 4.46 3.68 2.8 S 0.8 0.73 0.64 0.58 0.45.55.38.2.07 0.79 2.4.77.23 2.38 2.8.82.53.09 2.95 2.53.8 3.50 3.09 2.58 2.9.70 3.92 3.54 2.54 3 5 T 0.73 0.65 0.58 0.52 0.40.30.7.04 0.9 0.70.83.53.05.97.8.56.3.06 2.45 2.3.54 2.9 2.5 2.09.77.36 3.47 2.9 2.07 S 0.73 0.65 0.58 0.52 0.40.29.7.04 0.9 0.67.8.5.05.93.78.47.23 0.89 2.4 2.07.49 2.77 2.43 2.02.69.26 3.05 2.80.87 3 7 T 0.64 0.58 0.5 0.46 0.35.0 0.95 0.85 0.75 0.60.45.23 0.86.43.34.5 0.96 0.78.80.58.7 2.05.76.45.9 0.96 2.33 2.04.26 S 0.64 0.58 0.5 0.46 0.35.00 0.95 0.85 0.75 0.58.43.2 0.86.4.32.08 0.90 0.66.76.54.3.95.70.40.4 0.89 2.04.96.4 3 9 T 0.55 0.50 0.44 0.39 0.30 0.79 0.78 0.72 0.63 0.5.05 0.93 0.72 0.90 0.88 0.80 0.7 0.63.09 0.99 0.82.26.6.04 0.93 0.76.3.26 0.95 S 0.55 0.50 0.44 0.39 0.30 0.79 0.78 0.72 0.63 0.49.03 0.92 0.72 0.88 0.87 0.75 0.67 0.53.07 0.96 0.79.20.2.00 0.89 0.7.5.2 0.86 EWT Entering water temperature T Water temperature rise wb Wet bulb temperature db Dry bulb temperature T Total cooling capacity, kw S Sensible cooling capacity, kw 7
Cooling capacities, two-pipe coil EWT C ΔT K 42N S5 42N S20 42N S26 42N S30 42N S42 42N S45 42N S65 Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed 2 3 4 5 2 3 4 5 2 3 2 3 4 5 2 3 2 3 4 5 2 3 Entering air temperature 2 C wb / 29 C db 5 3 T 2.32 2.08.85.66.29 4.53 3.99 3.53 3. 2.42 6.22 5.9 3.57 6.97 6.39 5.59 4.74 3.83 8.55 7.47 5.43 0.44 9.3 7.72 6.66 5.4 2.53 0.46 8.04 S.67.52.32.9 0.90 2.77 2.49 2.5.93.4 3.82 3.6 2.22 4.30 3.92 3.26 2.74.96 5.33 4.56 3.23 6.33 5.57 4.66 3.98 3.2 7.6 6.40 4.63 5 5 T 2.7.95.73.55.20 3.96 3.58 3.7 2.78 2.4 5.44 4.59 3.2 5.85 5.43 4.75 4.05 3.3 7.3 6.30 4.69 8.64 7.58 6.44 5.52 4.3 0.07 8.65 6.43 S.59.44.25.3 0.85 2.53 2.30.99.78.29 3.49 2.90 2.06 3.84 3.52 2.92 2.46.77 4.75 4.08 2.92 5.62 4.95 4.4 3.5 2.68 6.29 5.68 4.03 5 7 T 2.00.80.59.43. 3.29 3.07 2.73 2.36.8 4.62 3.93 2.75 4.7 4.43 3.8 3.2 2.62 5.73 5.3 3.84 6.77 5.87 4.9 4. 3.05 7.75 6.77 4.56 S.50.37.8.07 0.8 2.25 2.08.80.59.5 3.6 2.63.86 3.39 3.2 2.57 2.4.53 4.20 3.62 2.59 4.9 4.29 3.54 2.97 2.22 5.48 4.96 3.35 5 9 T.8.63.45.30.0 2.56 2.5 2.24.9.44 3.68 3.7 2.26 3.50 3.32 2.83 2.37.95 4.34 3.88 2.92 4.95 4.27 3.55 2.93 2.09 5.59 4.94 3.6 S.4.28..0 0.76.96.85.60.4.0 2.79 2.33.65 2.90 2.67 2.9.82.3 3.64 3.3 2.23 4.7 3.63 2.99 2.49.82 4.59 4.2 2.74 7 3 T 2.05.84.63.47.4 3.96 3.5 3.0 2.74 2.3 5.42 4.54 3.4 6.04 5.55 4.86 4.3 3.35 7.39 6.48 4.74 9.0 7.89 6.69 5.77 4.68 0.75 9.03 6.9 S.52.39.20.09 0.82 2.52 2.26.96.75.29 3.48 2.88 2.02 3.9 3.56 2.96 2.49.78 4.85 4.5 2.94 5.76 5.07 4.23 3.6 2.82 6.52 5.83 4.20 7 5 T.88.69.50.35.05 3.36 3.06 2.72 2.38.83 4.6 3.9 2.75 4.88 4.55 3.98 3.40 2.77 5.93 5.27 3.95 7.7 6.30 5.36 4.54 3.5 8.29 7.7 5.25 S.44.3.4.03 0.78 2.28 2.08.80.60.6 3.5 2.62.85 3.45 3.7 2.63 2.2.58 4.28 3.68 2.63 5.06 4.45 3.72 3.4 2.39 5.67 5.2 3.6 7 7 T.70.53.36.22 0.95 2.66 2.52 2.25.94.48 3.76 3.2 2.26 3.76 3.53 3.04 2.55 2.09 4.63 4.3 3.09 5.39 4.67 3.90 3.26 2.42 6.9 5.38 3.64 S.36.23.07 0.97 0.73 2.00.85.60.42.02 2.82 2.34.65 3.02 2.77 2.28.89.36 3.77 3.23 2.29 4.37 3.8 3.5 2.64.98 4.87 4.42 2.99 7 9 T.49.34.9.07 0.83 2.0.98.77.5.7 2.90 2.50.78 2.80 2.64 2.25.88.54 3.49 3.09 2.3 3.99 3.43 2.84 2.35.74 4.57 3.98 2.60 S.26.5 0.99 0.89 0.67.73.63.4.24 0.90 2.46 2.05.45 2.56 2.36.94.6.6 3.2 2.76.97 3.67 3.20 2.64 2.9.59 3.98 3.70 2.35 9 3 T.76.58.4.26 0.98 3.35 2.99 2.65 2.34.82 4.58 3.85 2.68 5.05 4.67 4.08 3.48 2.83 6.7 5.43 4.00 7.5 6.59 5.59 4.82 3.90 8.88 7.53 5.72 S.38.26.09 0.98 0.74 2.27 2.04.77.58.6 3.4 2.59.82 3.52 3.2 2.66 2.24.60 4.37 3.73 2.64 5.9 4.56 3.8 3.24 2.53 5.88 5.25 3.77 9 5 T.58.42.27.4 0.88 2.72 2.5 2.23.94.49 3.74 3.20 2.25 3.92 3.67 3.22 2.72 2.22 4.75 4.24 3.20 5.76 5.05 4.25 3.60 2.77 6.64 5.76 4.4 S.30.8.02 0.92 0.70 2.03.84.60.42.03 2.8 2.34.65 3.08 2.82 2.34.96.40 3.83 3.28 2.34 4.53 3.97 3.30 2.78 2.2 5.08 4.58 3.20 9 7 T.38.24.0 0.99 0.77 2.07.98.76.52.5 2.93 2.5.78 2.95 2.76 2.38 2.00.64 3.66 3.23 2.4 4.28 3.70 3.08 2.58.93 4.96 4.27 2.92 S.2.0 0.95 0.86 0.64.76.63.4.24 0.90 2.48 2.06.45 2.66 2.44 2.0.67.20 3.33 2.85 2.02 3.85 3.36 2.78 2.33.74 4.26 3.89 2.6 9 9 T.6.05 0.93 0.83 0.64.60.55.38.9 0.96 2.3.97.39 2.27 2.2.82.52.24 2.83 2.50.85 3.25 2.79 2.3.9.47 3.75 3.25 2.0 S.09 0.99 0.86 0.78 0.58.5.43.24.09 0.8 2.5.79.27 2.9 2.04.67.39.0 2.75 2.38.7 3.09 2.70 2.22.83.35 3.29 3.2.89 3 T.45.3.6.05 0.8 2.7 2.44 2.7.9.48 3.69 3.2 2.9 4.02 3.73 3.27 2.79 2.28 4.90 4.33 3.2 5.96 5.23 4.45 3.84 3.0 7.0 5.97 4.53 S.24.3 0.97 0.88 0.66 2.02.82.57.40.02 2.80 2.3.62 3.3 2.85 2.36.98.42 3.89 3.32 2.35 4.6 4.05 3.38 2.87 2.24 5.23 4.67 3.35 5 T.26.3.0 0.9 0.7 2.0.95.73.5.6 2.92 2.49.75 3.08 2.87 2.49 2.0.7 3.74 3.32 2.48 4.53 3.93 3.30 2.79 2.6 5.32 4.54 3.24 S.5.05 0.9 0.82 0.6.78.62.40.24 0.90 2.49 2.06.44 2.73 2.50 2.06.72.23 3.39 2.9 2.06 4.0 3.50 2.9 2.45.87 4.49 4.05 2.82 7 T.06 0.95 0.84 0.76 0.59.63.53.36.7 0.90 2.3.95.37 2.37 2.20.90.59.29 2.96 2.59.90 3.46 2.98 2.48 2.08.57 4.07 3.46 2.39 S.04 0.95 0.82 0.74 0.56.54.42.23.09 0.79 2.6.80.27 2.29 2..74.45.04 2.86 2.46.76 3.28 2.87 2.38.99.45 3.58 3.3 2.6 9 T 0.92 0.82 0.73 0.65 0.50.29.23. 0.98 0.79.86.58.2.8.70.45.2.00 2.27 2.0.48 2.59 2.22.83.52.23 2.93 2.58.60 S 0.92 0.82 0.73 0.65 0.50.27.22.07 0.95 0.72.8.53.0.78.67.36.3 0.84 2.23.95.42 2.46 2.4.76.46.4 2.57 2.48.45 3 3 T.3.02 0.9 0.82 0.64 2.07.88.67.47.4 2.83 2.39.69 3.09 2.86 2.50 2.4.75 3.77 3.32 2.46 4.60 4.04 3.43 2.96 2.36 5.47 4.6 3.5 S.0.00 0.86 0.78 0.58.78.60.38.23 0.89 2.46 2.03.42 2.76 2.5 2.08.74.25 3.43 2.92 2.06 4.07 3.58 2.98 2.54.97 4.6 4.2 2.97 3 5 T 0.95 0.85 0.76 0.68 0.53.62.48.32.5 0.88 2.28.9.33 2.45 2.25.95.64.33 3.03 2.65.93 3.62 3.3 2.62 2.22.73 4.35 3.62 2.63 S 0.95 0.85 0.76 0.68 0.53.55.4.22.09 0.79 2.6.79.26 2.37 2.7.79.50.07 2.94 2.53.79 3.43 3.0 2.50 2..60 3.82 3.47 2.38 3 7 T 0.82 0.74 0.66 0.59 0.45.3.2.08 0.93 0.73.86.56.09.9.78.52.28.04 2.39 2.09.53 2.79 2.40.99.66.23 3.25 2.78.86 S 0.82 0.74 0.66 0.59 0.45.29.2.06 0.93 0.69.82.53.09.88.75.43.20 0.87 2.34 2.03.47 2.65 2.32.92.59.3 2.85 2.67.68 3 9 T 0.72 0.64 0.57 0.5 0.39.02 0.99 0.90 0.80 0.64.46.24 0.9.36.29.09 0.93 0.8.72.53.4.9.62.37.2.00 2.09.90.25 S 0.72 0.64 0.57 0.5 0.39.0 0.99 0.90 0.80 0.6.44.23 0.9.34.27.03 0.87 0.68.69.48.0.8.57.32.6 0.92.83.82.3 EWT Entering water temperature T Water temperature rise wb Wet bulb temperature db Dry bulb temperature T Total cooling capacity, kw S Sensible cooling capacity, kw 8
Heating capacities, two-pipe changeover coil Total heating capacity, kw Water flow ΔT 42N S5 42N S20 42N S26 42N S30 42N S42 42N S45 42N S65 rate Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed l/h l/s K 2 3 4 5 2 3 4 5 2 3 2 3 4 5 2 3 2 3 4 5 2 3 200 0.06 20.37.26.2 0.97 0.80.55.5.42.4.07.75.7.42 2.33 2.23 2.08.90.65 2.52 2.34 2.03 2.80 2.56 2.47 2.30.97 2.94 2.77 2.52 480 0.3 20.50.37.2.03 0.83 2.3.97.78.50.26 2.6 2.38.79 3.29 3.06 2.75 2.4 2.0 3.74 3.37 2.67 4.44 3.96 3.60 3.22 2.69 4.89 4.40 3.73 760 0.2 20.54.40.23.05 0.84 2.33 2..89.6.32 2.96 2.62.90 3.63 3.34 2.97 2.56 2.0 4.22 3.76 2.87 5.2 4.5 4.0 3.53 2.92 5.78 5.08 4.7 040 0.29 20.55.4.24.06 0.85 2.44 2.8.94.66.34 3.5 2.75.96 3.8 3.48 3.08 2.63 2.5 4.49 3.97 2.98 5.49 4.80 4.22 3.68 3.03 6.27 5.44 4.40 320 0.37 20.56.42.25.06 0.85 2.5 2.23.97.70.36 3.28 2.83.99 3.92 3.57 3.4 2.68 2.8 4.65 4.0 3.04 5.72 4.99 4.34 3.78 3.0 6.59 5.66 4.54 600 0.44 20.57.42.25.07 0.85 2.55 2.26 2.00.72.37 3.37 2.89 2.0 4.00 3.63 3.9 2.7 2.20 4.77 4.9 3.08 5.87 5. 4.43 3.83 3.4 6.8 5.82 4.63 880 0.52 20.57.43.25.07 0.85 2.58 2.28 2.0.74.37 3.43 2.93 2.03 4.05 3.68 3.22 2.73 2.2 4.85 4.25 3. 5.99 5.20 4.49 3.88 3.7 6.97 5.94 4.70 260 0.60 20.58.43.26.07 0.85 2.6 2.30 2.02.75.38 3.49 2.96 2.04 4.0 3.7 3.24 2.74 2.22 4.92 4.30 3.3 6.08 5.27 4.53 3.9 3.9 7.0 6.02 4.75 2440 0.68 20.58.43.26.07 0.86 2.63 2.3 2.03.76.38 3.53 2.98 2.05 4.3 3.74 3.26 2.76 2.23 4.97 4.34 3.5 6.5 5.33 4.57 3.93 3.2 7.20 6.09 4.79 2720 0.76 20.58.43.26.07 0.86 2.65 2.32 2.04.77.38 3.56 3.00 2.06 4.6 3.76 3.28 2.77 2.23 5.0 4.37 3.6 6.2 5.37 4.60 3.95 3.23 7.29 6.5 4.82 3000 0.83 20.58.43.26.07 0.86 2.66 2.33 2.05.78.39 3.59 3.02 2.06 4.8 3.77 3.29 2.77 2.24 5.04 4.40 3.7 6.25 5.4 4.62 3.97 3.24 7.36 6.20 4.85 200 0.06 30 2.06.89.69.46.20 2.4 2.34 2.8.78.64 2.73 2.65 2.9 3.57 3.42 3.8 2.90 2.52 3.86 3.59 3.0 4.30 3.94 3.78 3.53 3.03 4.5 4.26 3.87 480 0.3 30 2.25 2.05.8.55.25 3.25 2.99 2.70 2.28.9 4.00 3.63 2.72 4.99 4.64 4.7 3.64 3.03 5.69 5.3 4.04 6.78 6.04 5.49 4.90 4.0 7.47 6.7 5.68 760 0.2 30 2.3 2.0.85.58.27 3.55 3.20 2.86 2.44.99 4.52 3.99 2.88 5.50 5.05 4.49 3.87 3.7 6.4 5.7 4.34 7.77 6.85 6.08 5.35 4.43 8.78 7.70 6.32 040 0.29 30 2.33 2.2.86.59.27 3.70 3.30 2.93 2.52 2.02 4.80 4.7 2.96 5.77 5.27 4.65 3.97 3.24 6.80 6.0 4.49 8.3 7.28 6.38 5.57 4.58 9.5 8.24 6.65 320 0.37 30 2.35 2.3.87.60.28 3.80 3.37 2.98 2.57 2.04 4.99 4.29 3.00 5.93 5.40 4.74 4.04 3.28 7.04 6.20 4.58 8.65 7.55 6.57 5.70 4.68 9.98 8.57 6.86 600 0.44 30 2.36 2.4.88.60.28 3.86 3.4 3.0 2.60 2.06 5. 4.37 3.03 6.04 5.49 4.8 4.08 3.3 7.2 6.33 4.64 8.89 7.73 6.69 5.78 4.74 0.3 8.80 7.00 880 0.52 30 2.37 2.4.88.6.28 3.9 3.44 3.03 2.63 2.07 5.2 4.43 3.06 6.2 5.55 4.85 4. 3.32 7.33 6.42 4.69 9.06 7.86 6.77 5.85 4.78 0.55 8.97 7.09 260 0.60 30 2.37 2.5.89.6.28 3.94 3.46 3.05 2.64 2.07 5.28 4.47 3.07 6.8 5.60 4.89 4.3 3.34 7.43 6.49 4.72 9.8 7.97 6.84 5.89 4.82 0.74 9.0 7.7 2440 0.68 30 2.38 2.5.89.6.29 3.97 3.48 3.06 2.66 2.08 5.34 4.50 3.09 6.23 5.63 4.92 4.5 3.35 7.50 6.55 4.74 9.29 8.04 6.89 5.93 4.84 0.89 9.20 7.22 2720 0.76 30 2.38 2.5.89.6.29 3.99 3.50 3.07 2.67 2.08 5.39 4.53 3.0 6.27 5.66 4.94 4.6 3.36 7.56 6.59 4.76 9.37 8. 6.93 5.96 4.86.0 9.29 7.27 3000 0.83 30 2.38 2.6.89.6.29 4.0 3.5 3.08 2.68 2.09 5.43 4.55 3. 6.30 5.69 4.95 4.7 3.36 7.6 6.63 4.78 9.44 8.6 6.97 5.98 4.88. 9.36 7.3 200 0.06 40 2.75 2.52 2.25.95.60 3.3 3.9 2.97 2.45 2.22 3.77 3.63 2.98 4.85 4.63 4.3 3.93 3.4 5.25 4.89 4.2 5.83 5.36 5.4 4.79 4.3 6.2 5.78 5.25 480 0.3 40 3.0 2.74 2.42 2.08.67 4.40 4.03 3.63 3.08 2.57 5.44 4.9 3.66 6.72 6.24 5.6 4.89 4.07 7.68 6.92 5.44 9.5 8.6 7.39 6.60 5.52 0.0 9.06 7.65 760 0.2 40 3.08 2.80 2.47 2..69 4.78 4.30 3.84 3.29 2.67 6. 5.37 3.86 7.40 6.79 6.03 5.8 4.25 8.63 7.68 5.83 0.46 9.22 8.7 7.8 5.94.83 0.37 8.50 040 0.29 40 3.2 2.83 2.49 2.3.70 4.98 4.44 3.94 3.39 2.7 6.48 5.62 3.97 7.75 7.07 6.23 5.32 4.34 9.4 8.08 6.03.8 9.79 8.56 7.46 6.5 2.80.08 8.94 320 0.37 40 3.4 2.84 2.50 2.3.7 5.0 4.52 3.99 3.45 2.74 6.72 5.77 4.03 7.96 7.24 6.36 5.4 4.39 9.46 8.33 6.4.62 0.4 8.8 7.64 6.27 3.43.52 9.2 600 0.44 40 3.5 2.86 2.5 2.4.7 5.8 4.57 4.03 3.49 2.75 6.89 5.87 4.07 8.0 7.35 6.44 5.46 4.42 9.68 8.49 6.22.93 0.38 8.96 7.75 6.35 3.86.82 9.38 880 0.52 40 3.6 2.86 2.52 2.5.7 5.24 4.6 4.06 3.52 2.76 7.0 5.94 4.09 8.2 7.43 6.50 5.50 4.45 9.84 8.62 6.28 2.5 0.56 9.08 7.83 6.4 4.8 2.04 9.5 260 0.60 40 3.7 2.87 2.52 2.5.7 5.29 4.64 4.08 3.54 2.77 7.0 6.00 4.2 8.29 7.50 6.54 5.53 4.46 9.96 8.7 6.32 2.32 0.68 9.6 7.89 6.45 4.42 2.2 9.60 2440 0.68 40 3.7 2.87 2.52 2.5.72 5.32 4.66 4.0 3.56 2.78 7.8 6.04 4.3 8.35 7.54 6.58 5.55 4.48 0.06 8.78 6.35 2.46 0.78 9.23 7.94 6.48 4.62 2.35 9.68 2720 0.76 40 3.8 2.88 2.53 2.5.72 5.35 4.68 4. 3.57 2.79 7.24 6.08 4.5 8.40 7.58 6.6 5.57 4.49 0.3 8.84 6.38 2.57 0.87 9.29 7.97 6.5 4.78 2.45 9.74 3000 0.83 40 3.8 2.88 2.53 2.5.72 5.38 4.70 4.2 3.59 2.79 7.29 6. 4.6 8.44 7.6 6.63 5.58 4.50 0.20 8.89 6.40 2.65 0.94 9.33 8.00 6.53 4.9 2.54 9.79 EAT Entering air temperature EWT Entering water temperature T Available temperature difference - EWT -EAT 9
Heating capacities, two-pipe changeover coil Total heating capacity, kw Water flow ΔT rate K 42N S5 42N S20 42N S26 42N S30 42N S42 42N S45 42N S65 Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed Fan speed l/h l/s 2 3 4 5 2 3 4 5 2 3 2 3 4 5 2 3 2 3 4 5 2 3 200 0.06 50 3.44 3.6 2.82 2.44 2.00 4.24 4.06 3.77 3.3 2.82 4.84 4.64 3.79 6.5 5.87 5.46 4.97 4.3 6.66 6.2 5.33 7.39 6.8 6.5 6.07 5.24 7.75 7.32 6.65 480 0.3 50 3.76 3.43 3.03 2.60 2.09 5.57 5.08 4.58 3.89 3.23 6.90 6.2 4.6 8.47 7.86 7.06 6.5 5. 9.69 8.74 6.84.54 0.30 9.3 8.3 6.95 2.75.43 9.65 760 0.2 50 3.86 3.50 3.09 2.64 2.2 6.03 5.4 4.82 4.4 3.35 7.74 6.78 4.86 9.3 8.54 7.58 6.5 5.34 0.88 9.68 7.33 3.8.62 0.28 9.04 7.47 4.92 3.06 0.70 040 0.29 50 3.90 3.54 3.2 2.66 2.3 6.27 5.58 4.94 4.27 3.40 8.9 7.08 4.98 9.74 8.89 7.83 6.68 5.44.5 0.7 7.57 4.07 2.33 0.78 9.38 7.73 6.3 3.94.24 320 0.37 50 3.93 3.56 3.3 2.67 2.4 6.42 5.68 5.02 4.34 3.43 8.48 7.26 5.05 0.00 9.0 7.98 6.78 5.50.90 0.47 7.7 4.63 2.76.06 9.59 7.87 6.9 4.49.56 600 0.44 50 3.94 3.58 3.4 2.68 2.4 6.52 5.74 5.06 4.39 3.45 8.68 7.38 5.0 0.8 9.23 8.08 6.85 5.54 2.7 0.68 7.8 5.00 3.06.26 9.73 7.97 7.44 4.87.78 880 0.52 50 3.96 3.59 3.5 2.69 2.4 6.59 5.79 5.0 4.42 3.47 8.83 7.47 5.4 0.3 9.33 8.6 6.90 5.57 2.37 0.83 7.88 5.28 3.26.40 9.83 8.04 7.84 5.4.94 260 0.60 50 3.97 3.59 3.6 2.69 2.5 6.65 5.82 5.2 4.45 3.48 8.94 7.54 5.6 0.40 9.4 8.2 6.93 5.59 2.52 0.94 7.93 5.49 3.42.50 9.90 8.09 8.4 5.35 2.06 2440 0.68 50 3.97 3.60 3.6 2.69 2.5 6.69 5.85 5.4 4.47 3.48 9.03 7.59 5.8 0.48 9.47 8.25 6.96 5.6 2.63.03 7.97 5.65 3.55.59 9.96 8.3 8.38 5.5 2.5 2720 0.76 50 3.98 3.60 3.6 2.70 2.5 6.72 5.87 5.6 4.49 3.49 9.0 7.63 5.20 0.54 9.5 8.29 6.98 5.62 2.73.0 8.00 5.78 3.65.65 0.00 8.6 8.57 5.64 2.22 3000 0.83 50 3.98 3.6 3.7 2.70 2.5 6.75 5.89 5.7 4.50 3.50 9.6 7.67 5.2 0.59 9.55 8.3 7.00 5.63 2.8.6 8.02 5.89 3.73.7 0.04 8.9 8.74 5.74 2.28 200 0.06 60 4.3 3.79 3.39 2.93 2.4 5.8 4.95 4.58 3.83 3.42 5.93 5.67 4.60 7.46 7.3 6.62 6.02 5.22 8.09 7.55 6.46 8.97 8.28 7.90 7.36 6.38 9.4 8.89 8.08 480 0.3 60 4.52 4.2 3.64 3.2 2.52 6.75 6.5 5.53 4.72 3.90 8.39 7.53 5.57 0.24 9.50 8.52 7.42 6.6.73 0.57 8.26 3.95 2.46.25 0.03 8.40 5.42 3.82.66 760 0.2 60 4.64 4.2 3.7 3.7 2.55 7.30 6.54 5.82 5.0 4.03 9.38 8.20 5.86.24 0.3 9.4 7.85 6.43 3.5.69 8.84 5.93 4.05 2.40 0.9 9.02 8.03 5.78 2.92 040 0.29 60 4.69 4.26 3.75 3.20 2.56 7.58 6.73 5.96 5.5 4.09 9.92 8.55 6.0.75 0.72 9.44 8.05 6.55 3.90 2.28 9.2 6.99 4.88 3.00.3 9.3 9.49 6.84 3.58 320 0.37 60 4.72 4.28 3.76 3.2 2.57 7.75 6.84 6.04 5.23 4.3 0.26 8.76 6.09 2.06 0.96 9.62 8.7 6.62 4.37 2.64 9.29 7.65 5.39 3.34.55 9.49 20.4 7.49 3.94 600 0.44 60 4.74 4.30 3.78 3.22 2.57 7.87 6.92 6.0 5.29 4.5 0.49 8.90 6.5 2.27.3 9.74 8.24 6.67 4.68 2.88 9.40 8.0 5.74 3.57.72 9.60 2.05 7.93 4.20 880 0.52 60 4.76 4.3 3.79 3.23 2.58 7.95 6.97 6.4 5.33 4.7 0.67 9.0 6.9 2.42.24 9.82 8.30 6.70 4.9 3.05 9.48 8.44 5.99 3.73.83 9.68 2.52 8.27 4.39 260 0.60 60 4.77 4.32 3.79 3.23 2.58 8.0 7.0 6.6 5.36 4.8 0.80 9.09 6.22 2.54.33 9.89 8.34 6.73 5.09 3.8 9.54 8.67 6.8 3.86.92 9.74 2.88 8.50 4.53 2440 0.68 60 4.77 4.32 3.80 3.24 2.58 8.06 7.04 6.9 5.38 4.9 0.90 9.5 6.24 2.62.40 9.93 8.37 6.75 5.23 3.29 9.59 8.86 6.33 3.96.99 9.79 22.8 8.69 4.63 2720 0.76 60 4.78 4.33 3.80 3.24 2.58 8.0 7.07 6.2 5.40 4.20 0.99 9.20 6.26 2.70.45 9.97 8.40 6.76 5.34 3.37 9.63 9.02 6.45 4.03 2.04 9.82 22.4 8.85 4.72 3000 0.83 60 4.79 4.33 3.8 3.24 2.59 8.3 7.09 6.22 5.42 4.20.06 9.24 6.27 2.75.50 0.0 8.42 6.77 5.43 3.44 9.66 9.4 6.55 4.0 2.08 9.85 22.58 8.97 4.79 200 0.06 70 4.82 4.43 3.95 3.43 2.8 6.2 5.83 5.40 4.52 4.03 7.03 6.70 5.42 8.78 8.38 7.79 7.07 6.3 9.52 8.89 7.60 0.56 9.76 9.3 8.67 7.53.08 0.47 9.5 480 0.3 70 5.28 4.8 4.25 3.65 2.94 7.94 7.22 6.49 5.55 4.57 9.90 8.86 6.53 2.03.4 9.99 8.70 7.22 3.78 2.42 9.69 6.38 4.64 3.20.76 9.86 8. 6.23 3.68 760 0.2 70 5.42 4.92 4.34 3.7 2.98 8.57 7.67 6.82 5.88 4.72.04 9.63 6.87 3.9 2.09 0.7 9.9 7.52 5.43 3.72 0.36 8.69 6.49 4.54 2.76 0.57 2.7 8.52 5.5 040 0.29 70 5.48 4.97 4.38 3.74 2.99 8.89 7.88 6.98 6.04 4.79.66 0.03 7.03 3.78 2.56.06 9.42 7.67 6.30 4.40 0.69 9.93 7.46 5.22 3.24 0.9 22.87 9.75 5.9 320 0.37 70 5.52 5.00 4.40 3.75 3.00 9.09 8.0 7.07 6.3 4.83 2.05 0.28 7.3 4.4 2.84.26 9.56 7.75 6.84 4.8 0.88 20.69 8.07 5.62 3.53. 23.95 20.50 6.34 600 0.44 70 5.54 5.02 4.4 3.77 3.0 9.22 8.0 7.4 6.20 4.86 2.32 0.44 7.9 4.38 3.03.40 9.65 7.80 7.2 5.09.0 2.23 8.45 5.89 3.72.24 24.69 2.04 6.64 880 0.52 70 5.56 5.04 4.43 3.77 3.0 9.32 8.6 7.8 6.24 4.87 2.52 0.56 7.24 4.55 3.6.50 9.7 7.84 7.48 5.29.0 2.58 8.74 6.08 3.85.33 25.23 2.39 6.85 260 0.60 70 5.57 5.05 4.43 3.78 3.02 9.39 8.2 7.2 6.27 4.89 2.67 0.65 7.27 4.68 3.26.57 9.76 7.87 7.68 5.44.7 2.87 8.95 6.22 3.95.40 25.65 2.67 7.0 2440 0.68 70 5.58 5.05 4.44 3.78 3.02 9.44 8.25 7.24 6.30 4.90 2.78 0.72 7.30 4.78 3.34.62 9.79 7.89 7.84 5.56.22 22.09 9.3 6.34 4.02.45 25.99 2.89 7.3 2720 0.76 70 5.59 5.06 4.44 3.79 3.02 9.49 8.27 7.26 6.32 4.9 2.88 0.77 7.32 4.86 3.4.67 9.82 7.90 7.97 5.66.26 22.27 9.26 6.42 4.09.49 26.24 22.07 7.23 3000 0.83 70 5.59 5.07 4.45 3.79 3.02 9.52 8.30 7.28 6.34 4.9 2.96 0.82 7.34 4.93 3.46.7 9.85 7.92 8.07 5.74.30 22.42 9.37 6.50 4.4.53 26.46 22.22 7.3 EAT Entering air temperature EWT Entering water temperature T Available temperature difference - EWT -EAT 20