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42GW
INSTALLATION MANUAL
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42 GW “Hydronic Global Cassette” Fan Coil Units Contents Page Dimensions and weights........................................................................ 2 Technical data ........................................................................................ 3 General information ............................................................................... 4 Avoid ..
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42 GW Dimensions and weights 575 575 100 52 50 720 42GW 550 004 - 008 - 010 Ø 25 825 825 125 70 ø150 595 Ø 100 42GW 012 - 016 - 020 42GW 004 008 010 012 016 020 Unit 17.5 19 19 36 38 38 kg Frame/Grille assembly 33 3555 GB - 2 620 440 Ø 150 Ø 70 Ø 25 298 237 150 298 280 225 120 120 515 158 88 90 110 112 813 155 160 160 960
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42 GW Technical data ENGLISH Table I: Nominal data POWER INPUT Models Cooling Heating POWER INPUT WA WA Models Cooling Heating 42GWE004 70 0.30 1560 6.8 WA WA 42GWH004 70 0.30 560 2.4 42GWC004 42GWC004H 66 0.28 56 0.24 42GWE008 65 0.28 2555 11.1 42GWC008 42GWC008H 78 0.34 68 0.29 42GWH008 65 0.28 555 2.4 42GWC010 42GWC010H 100 0.43 90 0.39 42GWE010 94 0.40 2584 11.2 42GWC012 42GWC012H 97 0.42 87 0.38 42GWE012 123 0.53 3113 13.5 42GWC016 42GWC016H 135 0.58 125 0.54 42GWE016 141 0.61 3131 13.6
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42 GW General Information Unit installation Choosing the installation site Read this instruction manual thoroughly before starting Positions to avoid: installation. • Exposure to direct sunlight. • This unit complies with the low-voltage (EEC/73/23) and electromagnetic compatibility (EEC/ 89/336) directives. • Areas close to heat sources. • The installation should be carried out by a qualified installer. • On damp walls or in positions that may be exposed to water hazard. • Follow all current n
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42 GW Avoid... ENGLISH ... any obstruction of the unit air intake or supply grilles. ... exposure to direct sunshine, when the unit is operating in the cooling mode; always use shutters or shades. ... positions too close to heating sources which may damage the unit. ... connecting condensate piping to sewage system drain without ... exposure to oil vapours. appropriate trap. Trap height must be calculated according to the unit discharge head in order to allow sufficient and continuous water evac
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42 GW Installation Max. 2 louvres closed Heating: louvre position for correct air flow. Cooling: louvre position for correct air flow. Warning: To close one or two air outlets use the special kit • Install the unit as centrally as possible in the room, the air flow If plaster board ceiling panels are installed the maximum direction can be controlled by manually regulating the louvres dimensions of the unit housing must not exceed 660 x 660 mm position, according to the operating mode (co
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42 GW Installation ENGLISH Condensate drain pipe Threaded hangers "T" bar (to be removed) 2% First position the connection lines , as described in the chapter "Water connections". Remove the "T" bar in order to facilitate installation operations. Suspension brackets Carefully lift the unit (without the frame) using the four suspension brackets (or the four corners), inserting it into the false ceiling. If the "T" bar cannot be removed the unit may need to be tilte
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42 GW Installation Frame pre-hooking support Safety belt Frame fixing screw A. Gasket "A" B. Gasket "B" A B Air discharge Ensure that the frame is not distorted by excessive tightening, Installation of grille/frame assembly that it is aligned with the false ceiling and above all that there is a seal between the air inlet and outlet. In the drawing gasket "A" prevents return air from mixing with Carefully unpack the assembly and check for damage sustained in the supply air an
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42 GW Motorized valve and control ENGLISH • The unit control circuit only allows opening of the motorized Instructions for mounting of motorized valve when the fan motor is working. (See wiring diagrams) thermo-electric valve assembly (see "Components" table) • When the thermostat asks for cooling, terminal 1 of TB3 (cold water) is supplied with 230V. • The thermo-electric valve must be mounted on the unit after When it asks for heating, terminal 2 of TB3 (hot water or the unit installation. ele
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42 GW Motorized valve and control Automatic operation position ON-OFF valves (230V) Thermo-electric valve • In this case the cold water valve must be controlled by the ON- head OFF signal from terminal 1 of TB3 and the hot water valve from Valve body terminal 2 of TB3. ON-OFF valves with other voltages than 230V • If a room control listed in the accessories table is used, follow the instructions in the previous paragraph and install two 230V relay at TB3 terminals 1, 2, 4 and 5 which w
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42 GW Motorized valve and control ENGLISH • If these connections are not made as described the drain • The water discharge pump should work every time the pan condensate may overflow. cold water valve is opened, supplying TB1 terminal 7 and 8 from TB1 terminal 4. • Valves should only open when the fan motor is working, i.e. when one of TB1 terminals 1 or 2 or 3 is supplied from TB1 • When the system is filled with water, verify all couplings terminal 4. for tightness. • The optional electric hea
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42 GW Electrical connections The control panel can be reached by opening the grille and IMPORTANT: removing the metal covers using the 3 or 4 screws. • Make ground connection prior to any other electrical connections. • If the unit is fitted with an electric heater, this must have a separate power supply. Ensure that the mains supply connection is made through a switch that disconnects all poles, with a contact gap of at least 3 mm. • Fix the power cable of the electric resistance heaters under
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42 GW Wiring diagram, standard version unit ENGLISH Electric heater 230V ~ 50Hz supply 04–E / 04–H TB1 1 23 45 6781 90 11 230V ~ 50Hz N R ST1 NL R C C ST2 TB2 CR HR L N 1-HTR TB3 25 E-HTR PR PCB “TB3” 5
4 3 08/10–E / 08-H 2 1 230V ~ 50Hz N R ST1 NL R C T C ST2 CN1 PCB 2-HTR 12 3 4 5 67 8 9 10 1-HTR 25 B E-HTR PCB “TB3” C G W 230V 08/10–E TAKEN FROM 400V 3N~ 50Hz N R ST1 NRST R C Y-G C ST2 Y-G 1 2 3 4 5 6 1 2 1 2 3 GND C1_F C3_F C2_F C1_M 1 2 3 C3_M C2_M 1 2 3 4 5 6 1
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42 GW Fresh air renewal and conditioned air supply to an adjacent room B C Duct connection flange Clip 6 mm neoprene gasket Model 004-008-010 012-016-020 Insulated flexible duct Fresh air intake Ø A mm 150 150 Conditioned air supply to an B mm 120 120 adjacent room Ø C mm 70 100 Polystyrene partition Baffle Frame Air intake grille Wall Undercut door Wall-fitted grille
Door-fitted grille
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42 GW Fresh air renewal and conditioned air supply to an adjacent room ENGLISH Fresh air renewal Conditioned air supply to an adjacent room • The optional supplementary fan for fresh air intake (field • Air supply to an adjacent room requires that the outlet supplied) has to be connected to terminal block as per corresponding with the duct is closed, using the air diagrams enclosed. supply outlet obstruction kit supplied. Fan motor operation is parallel to the thermo-electric control The kit can
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42 GW Maintenance and owner's guide Maintenance Additional maintenance Cleaning and maintenance operations must be carried out by specially trained personnel. • The electric panel is easily accessible by removing the cover panel. Before performing any service or maintenance operations, The inspection or replacement of internal components such as: fan motor, coil, condensate discharge pump, float switch, electric turn OFF the main power switch. heater (if fitted), involve the removal of the cond
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L010122H22 - 0405 Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - Tel. 039/3636.1 The manufacturer reserves the right to change any product specifications without notice. Order No. 14207-74M10, April 2005. Supersedes Order No. 14207-74M10, December 2004. Printed in Italy
