42WH Nominal cooling capacity kw Nominal heating capacity kw

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1 Hydronic High-Wall-Fan Coil Units 42WH Nominal cooling capacity kw Nominal heating capacity kw These elegant hydronic high-wall units complete the Carrier range of water-cooled indoor units. They are available with a standard or fully featured back panel, depending on the application needs, and can be used in conjunction with every other indoor terminal. The 42WH units combine stylish design and clear lines with optimum comfort and performance. 42WH units are available as cooling only models (42WHC) and with electric heaters (42WHE). Features 1 The units are ideal for hotels, but also suitable for a wide range of other commercial and residential applications. 1 The new hydronic high-wall unit is designed to fit neatly on any appropriate wall, above the occupant s normal eye level. This frees valuable floor space. 1 The standard version has extensions to cover the pipes. 1 The tangential fan brings new air to the ambient air very quietly and unobtrusively. This means optimum comfort can be achieved quickly and easily. 1 In the fully-featured version three-way valves are supplied as standard. 1 The 42WH unit offers automatic temperature control. This is the only model in its class to include cold draft prevention as a standard feature. By automatically controlling the fan in response to changes in the water temperature, the hydronic high-wall units help create an ideal environment, anywhere from small bedrooms to large reception areas, from shops to office blocks. 1 After a power failure the unit will restart automatically without any change in user settings. 1 42WH units are extremely simple to install and to maintain. For routine servicing they are easily accessible from one or both sides, and if needed, one person can service the unit in less than 10 minutes. 1 42WH units can be matched to any water chiller from 4 to 100 kw to suit your individual application requirements. Fully-featured back panel

2 Physical and electrical data Model 42WHC WHE WHC WHE WHC WHE 028 Total cooling capacity kw Sensible cooling capacity kw Water flow rate (cooling) l/s Water pressure drop (cooling) kpa 14/22* 14/22* 19/30* 19/30* 34/50* 34/50* Heating capacity kw Electric heaters W Air flow rate (low/medium/high) l/s 47/59/69 47/59/69 72/81/86 72/81/86 111/123/ /123/131 Power input W Current drawn A Weight, unit kg Weight, fully-featured back panel with valves kg Weight, standard back panel kg Power supply V-ph-Hz The above data refers to Eurovent conditions. Cooling conditions: 27 C db/19 C wb air temperature, 7 C/12 C entering and leaving water temperature at high fan speed Heating conditions: 20 C air temperature, 50 C entering water temperature, same water flow rate as in cooling, at high fan speed. * Values with valves installed. Unit dimensions, mm 42WH A B C D* * Dimension D refers to the fully-featured back panel, and basic back panel only. For the standard back panel please refer to the appropriate drawings. Fully featured back panel 42WH A Basic back panel Same as fully featured back panel, but without valves, water connections only from the rear to fit perfectly behind the unit. Standard back panel Offered with detachable sides to allow water connections to enter from left or right-hand side. 42WH A All dimensions are in mm.

3 Example of side connections with standard back panel Clearances, mm Water connections All units Outside connection diameter (inch), standard panel without valves Inside connection diameter (inch), fully-featured panel with valves Outside connection diameter (inch), fully-featured panel with valves 3/8" gas male 3/8" gas male 3/8" gas female 3/8" gas male

4 Cooling capacity, two-pipe coil (with fan at high speed) Entering water Water temperature Entering air 42WH WH WH 028 temperature C rise K temperature C Total Sensible Total Sensible Total Sensible wb db kw kw kw kw kw kw Eurovent conditions Note: The maximum operating water flow rate is l/s (790 l/h) for size and l/s (1315 l/h) for size 028.

5 Cooling capacity, two-pipe coil (with fan at high speed) Entering water Water temperature Entering air 42WH WH WH 028 temperature C rise K temperature C Total Sensible Total Sensible Total Sensible wb db kw kw kw kw kw kw Eurovent conditions Note: The maximum operating water flow rate is l/s (790 l/h) for size and l/s (1315 l/h) for size 028. Correction factors 42WH Capacity Fan speed High Medium Low 016 Total Sensible Total Sensible Total Sensible Note: These factors should be considered mean values. For more accurate sizing please use the ECAT software. Heating capacity, two-pipe coil (with fan at high speed) Water flow rate Available temp. 42WHE WHE WHE 028 l/h l/s difference, K kw kw kw Available temperature difference = entering hot water temperature minus entering air dry bulb temperature. Maximum operating temperature 60 C, maximum operating pressure 14 bar.

6 Air throw (cooling mode), m 42WH High speed Medium speed Low speed With louvres adjusted in cooling position. 2. The air throw is defined as the distance at which the air flow speed falls to 0.2 m/s. 3. The values are to be considered as indicative, as they may vary according to the type of ceiling, room dimensions and even the furniture. Coil water content 42WH Water content, l Operating limits Water circuit Maximum water-side pressure 1400 kpa Minimum entering water temperature +6 C Maximum entering water temperature +60 C Maximum entering water temperature with electric heaters +45 C Room air Minimum temperature 5 C* Maximum temperature 32 C Power supply Nominal single-phase voltage 230 V, 50 Hz Operating voltage limits 198 V-264 V * If the room temperature can go down to 0 C, it is advisable to empty the water circuit to avoid damage caused by ice. Electrical data (units with heaters) 42WH Current A Power input W Power supply V-ph-Hz Sound levels 42WH Lw(A) Lp(A) NR High speed Medium speed Low speed High speed Medium speed Low speed High speed Medium speed Low speed Sound pressure levels in db(a) and noise ratings NR are for a ceiling-installed unit and measured in a room with a volume of 100 m 3 and 0.5 seconds reverberation time. Lp(A) - Sound pressure level, db(a) Lw(A) - Sound power level, db(a) NR - Noise rating, db(a)

7 Pressure drops 3-way valve assembly in bypass condition 10 Bypass kpa 1 0,1 100 (0.03) 1000 (0.28) (2.78) l/h (l/s) 3-way valve assembly in open condition 100 kpa 10 3-way valve + flexible pipes (0.03) 1000 (0.28) (2.78) l/h (l/s) Coil kpa 10 Size 028 Sizes 016, (0.03) 1000 (0.28) (2.78) l/h (l/s)

8 Order No , Supersedes order No. New. Manufacturer reserves the right to change any product specifications without notice. Manufactured by: Carrier SpA, Villasanta, Italy. Printed on Totally Chlorine Free Paper. Printed in the Netherlands.