Low and High Static Pressure Fan Coil Units. VH2N 03 to 27. Technical Brochure. TM VH2N-A.1GB Date : June 2006 Supersedes : None

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1 Low and High Static Pressure Fan Coil Units VH2N 03 to 27 Technical Brochure TM VH2N-A.1GB Date : June 2006 Supersedes : None

2 Design Features Presentation The VH2N fan coil units has been specially designed to meet the job requirements that call for false-ceiling installations and for air distribution by ductwork requiring low and high static pressure (up to 220 Pa for larger units). Casing Fabricated from 1.0 mm thick galvanized sheet steel with the fixing brackets located at the top part of the casing for installation to the ceiling. The condensate drain pan is made from 1.0 mm thick galvanized sheet steel, painted and is externally insulated by 2 mm thick closed cell polyethylene foam, having M1 fire classification. An optional auxiliary drain pan (supplied with valves) can be provided to collect condensates from coils headers. Access to internal components (fan-motor assembly and coils) for service and maintenance works is facilitated by dismantling the central bottom panel of the fan coil unit, without removing the distribution ducts. Fixation The unit is supplied with 4 slotted fixing brackets as standard. Coil compartment It is lined with 10 mm thick closed cell polyethylene foam insulation, having M1 fire classification. It incorporates water coils which are fitted with 1/2"Ø female threaded couplings for units up to model VH2N 10 and with Rc 3/4" to Rc 1"1/4 male threaded couplings for larger units. Coils have 4 or 5 rows and 3+1 or 4+1 rows, respectively available for 2 or 4 pipe systems. Coils are leak tested under water (21 bar) and are suitable for a maximum working pressure of 10 bar. Fan compartment It incorporates a fan-motor assembly of which the fan is composed of double inlet forward curved type aluminium wheels and galvanized sheet steel scrolls. Motor is of direct drive type having 3 or 6 speeds according to the models. Motor is suitable for nominal voltage of 230 V / 1 Ph / 50 Hz and is equipped with a built-in thermal overload protection of automatic reset type. Air filter Filter consists of cleanable synthetic media (sewn on wire frame) having G2 or G3 classification. The G3 synthetic media on a reinforced frame can be supplied as optional. Filter is removable and is easily pulled out downward for cleaning or replacement, after removing the access metal plate. Options and accessories Electric heater for 2-pipe/2-wire system Electric heater consists of sheathed type heating elements equipped with a manual reset and an automatic reset high temperature cutout switches. The electric heater On/Off control, made thanks to a relay, can be mounted as optional. Standard voltage is single phase 230 V. Regulation valves On/Off (thermal type actuator), 2-way or 4-way type for 2-pipe or 4-pipe systems. Valves are not available for model VH2N 27. Valves for models VH2N 03/05/07/10 are supplied mounted, those for models VH2N 15/18/21/24 are supplied loose. Controls Electromechanical, electronic or digital type. Fan speed relay Relay for fan speed control can be mounted as optional for models VH2N 15/18/21/24/27. Integrated fan plenum with or without air filter Fan-motor assembly Electrical box with grommets Cooling and heating coils (4-pipe system) Cooling coil connecting headers equipped with air vent and drain plug Heating coil connecting headers equipped with air vent and drain plug Auxiliary condensate drain pan (optional) Page 2

3 Air Flow Data VH2N 03 - Air Flow (m 3 /h) Speeds V1 V2 V3 V4 V5 V6 Filter External static pressure (Pa) Without G G Without G G Without G G Without G G Without G G Without G G VH2N 05 - Air Flow (m 3 /h) Speeds V1 V2 V3 V4 V5 V6 Filter External static pressure (Pa) Without G G Without G G Without G G Without G G Without G G Without G G Page 3

4 Air Flow Data (continued) VH2N 07 - Air Flow (m 3 /h) Speeds V1 V2 V3 V4 V5 Filter External static pressure (Pa) Without G G Without G G Without G G Without G G Without G G VH2N 10 - Air Flow (m 3 /h) Speeds V1 V2 V3 V4 V5 Filter External static pressure (Pa) Without G G Without G G Without G G Without G G Without G G VH2N 15 & 18 - Air Flow (m 3 /h) Speeds V1 V2 V3 V4 Filter External static pressure (Pa) Without G G Without G G Without G G Without G G Page 4

5 Air Flow Data (continued) VH2N 21 - Air Flow (m 3 /h) Speeds V1 V2 V3 V4 Filter External static pressure (Pa) Without G G Without G G Without G G Without G G VH2N 24 - Air Flow (m 3 /h) Speeds V1 V2 V3 Filter External static pressure (Pa) Without G G Without G G Without G G VH2N 27 - Air Flow (m 3 /h) Speeds V1 V2 V3 Filter External static pressure (Pa) Without G G Without G G Without G G Page 5

6 Electric Heating Coil Data Sizes VH2N 03 VH2N 05 VH2N 07 VH2N 10 VH2N 15 VH2N 18 VH2N 21 VH2N 24 VH2N 27 BE BE Capacity (W) BE BE BE Fan Motor Electrical Data Motors absorbed V/1 Ph/50 Hz Sizes Fan speed VH2N 03 VH2N 05 VH2N 07 VH2N 10 V V V V V V Sizes Fan speed VH2N 15 VH2N 18 VH2N 21 VH2N 24 VH2N 27 V V V V (*) Motor maximum absorbed data given for operation with 230 V/1 Ph/50 Hz supply and 0 Pa external static pressure with G2 filter. Page 6

7 Sound Power Levels Lw VH2N 03 Lw in db(a) Fan speed V1 V2 V3 V4 V5 V6 Return * Discharge * Radiated ** VH2N 05 Lw in db(a) Fan speed V1 V2 V3 V4 V5 V6 Return * Discharge * Radiated ** VH2N 07 Lw in db(a) Fan speed V1 V2 V3 V4 V5 Return * Discharge * Radiated ** VH2N 10 Lw in db(a) Fan speed V1 V2 V3 V4 V5 Return * Discharge * Radiated ** VH2N 15, 18, 21 Lw in db(a) Fan speed V1 V2 V3 V4 Return * Discharge * Radiated ** VH2N 24 and 27 Lw in db(a) Fan speed V1 V2 V3 Return * Discharge * Radiated ** (*) Data given for 0 Pa external static pressure. (**) Data given for 50 Pa external static pressure at maximum fan speed. Coil Water Volume Water volume (in litres) Sizes 4 pipes 2 pipes Cooling Heating VH2N VH2N VH2N VH2N VH2N VH2N VH2N VH2N VH2N Page 7

8 Performance Data in Cooling Mode - 2-pipe system VH2N sizes Speed V1 V2 V3 V4 V5 V6 Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Performance data based on : Air : 27 C/19 C (wet bulb), Chilled water : 7/12 C. Units with G2 filter and 50 Pa external static pressure. Performance Data in Cooling Mode - 4-pipe system VH2N sizes Speed V1 V2 V3 V4 V5 V6 Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Air flow m 3 /h P total W P sensible W Performance data based on : Air : 27 C/19 C (wet bulb), Chilled water : 7/12 C. Units with G2 filter and 50 Pa external static pressure. Page 8

9 Performance Data in Heating Mode - 2-pipe system VH2N sizes Speed V1 V2 V3 V4 V5 V Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Performance data based on : - Air : 20 C, entering water : 50 C, water flow same as that in cooling mode. - Units with G2 filter and 50 Pa external static pressure. Performance Data in Heating Mode - 4-pipe system VH2N sizes Speed V1 V2 V3 V4 V5 V Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Air flow m 3 /h P heat W Performance data based on : - Air : 20 C, hot water : 70/60 C. - Units with G2 filter and 50 Pa external static pressure. Page 9

10 Water Pressure Drops - Cooling Mode - 2-pipe system Pressure drop (kpa) 1 VH2N 03 2 VH2N 05 3 VH2N 07 4 VH2N 10 5 VH2N 15 6 VH2N 18 7 VH2N 21 8 VH2N 24 9 VH2N 27 Water flow (x100 l/h) Water Pressure Drops - Heating Mode - 2-pipe system Pressure drop (kpa) 1 VH2N 03 2 VH2N 05 3 VH2N 07 4 VH2N 10 5 VH2N 15 6 VH2N 18 7 VH2N 21 8 VH2N 24 9 VH2N 27 Water flow (x100 l/h) Page 10

11 Water Pressure Drops - Cooling Mode - 4-pipe system 1 VH2N 03 2 VH2N 05 Pressure drop (kpa) 3 VH2N 07 4 VH2N 10 5 VH2N 15 6 VH2N 18 7 VH2N 21 8 VH2N 24 9 VH2N 27 Water flow (x100 l/h) Water Pressure Drops - Heating Mode - 4-pipe system Pressure drop (kpa) 1 VH2N 03 2 VH2N 05 3 VH2N 07 4 VH2N 10 5 VH2N 15 6 VH2N 18 7 VH2N 21 8 VH2N 24 9 VH2N 27 Water flow (x100 l/h) Page 11

12 Dimensional Data and Weight - VH2N 03 Dimensions in mm. Unit size Operating weight Weight definition VH2N kg Unit with 4-row coil, without valve and without control. Page 12

13 Dimensional Data and Weight - VH2N 05, 07 and 10 Unit size A B C D E F G H I J K L M N VH2N VH2N VH2N Dimensions in mm. Unit size Operating weight Weight definition VH2N kg Unit with 4-row coil, without valve and without control. VH2N kg Unit with 4-row coil, without valve and without control. VH2N kg Unit with 5-row coil, without valve and without control. Page 13

14 Dimensional Data and Weight - VH2N 15, 18, 21, 24 and 27 Unit size A B C D E F G H I J K L M N P Q R S T VH2N VH2N VH2N VH2N VH2N Dimensions in mm. Unit size Operating weight Weight definition VH2N kg Unit with 3-row coil, without valve and without control. VH2N kg Unit with 4-row coil, without valve and without control. VH2N kg Unit with 5-row coil, without valve and without control. VH2N kg Unit with 4-row coil, without valve and without control. VH2N kg Unit with 5-row coil, without valve and without control. Page 14

15 Definition of the Service Sides The service side is determined by coil connection side when observer is looking at the unit from the discharge side. LEFT-HAND service side RIGHT-HAND service side Page 15

16 As part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos. Your distributor : CAC Export Department 42 cours Jean-Jaurès Pons - France Tel. : +33 (0) Fax : +33 (0)