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42 GW

GB - 4

General Information

Unit installation

Read this instruction manual thoroughly before starting
installation.

• This unit complies with the low-voltage (EEC/73/23) and

electromagnetic compatibility (EEC/ 89/336) directives.

• The installation  should be carried out by a qualified installer.

• Follow all current national safety code requirements.

In particular ensure that a properly sized and connected ground
wire is in place.

• Check that the voltage and frequency of the mains power supply

are as required for the unit to be installed; the available power
source must be adeguate to operate all other appliances
connected to the same line.
Also ensure that national safety code requirements have been
followed for the main supply circuit.

• Where necessary, use field-supplied 25 mm I.D. PVC pipe of

appropriate length and with the correct thermal insulation for the
condensate drain extension.

• After installation thoroughly test system operation and explain all

system functions to the owner.

• Use this unit only for factory approved applications: the unit

cannot be used in laundry or steam pressing premises.

WARNING:
Disconnect the mains power supply switch before servicing
the system or handling any internal parts of the unit.

• The manufacturer declines any liability for damage resulting

from modifications or errors in the electrical or water
connections.
Failure to observe the installation instructions, or use of the
unit under conditions other than those indicated in Table
"Operating limits" of the unit installation manual, will
immediately invalidate the unit warranty.

• Failure to observe electric safety codes may cause a fire hazard in

the event of short circuits.

• Inspect equipment for damage during transport. In case of

damage file an immediate claim with the shipping company.
Do not install or use damaged units.

• In case of malfunction turn the unit off, disconnect the mains

power supply and contact a qualified service engineer.

• Maintenance must only be carried out by qualified personnel.

• All of the manufacturing and packaging materials used for

this appliance are biodegradable and recyclable.

• Dispose of the packaging material in accordance with local

requiremements.

Choosing the installation site

Positions to avoid:

• Exposure to direct sunlight.

• Areas close to heat sources.

• On damp walls or in positions that may be exposed to water

hazard.

• Where curtains or furniture may obstruct free air circulation.

Recommendations:

• Choose an area free from obstructions which may cause uneven

air distribution and/or return.

• Consider using an area where installation is easy.

• Choose a position that allows for the clearances required.

• Look for a position in the room which ensures the best possible air

distribution.

• Install unit in a position where condensate can easily be piped to an

appropriate drain.

Summary of Contents for 42GW

Page 1: ...42GW L L O Y D S R E G I S TER QUALIT Y A S S U R A N C E IS O 900 1 INSTALLATION MANUAL ...

Page 2: ...enewal and conditioned air supply to adjacent room 14 15 Maintenance 16 Models C 2 pipe D 4 pipe 42GWC004 42GWC008 42GWC010 42GWC012 42GWC016 42GWC020 42GWD004 42GWD010 42GWD020 Models C 2 pipe D 4 pipe 42GWC004H 42GWC008H 42GWC010H 42GWC012H 42GWC016H 42GWC020H 42GWD004H 42GWD010H 42GWD020H Models with electric heater 42GWE004 42GWE008 42GWE010 42GWE012 42GWE016 42GWE020 42GWE004H 42GWE008H 42GWE...

Page 3: ...020 Unit 17 5 19 19 36 38 38 Frame Grille assembly 3 3 3 5 5 5 813 595 960 298 120 225 280 Ø 1 5 0440 88 160 825 112 70 125 825 120 ø150 298 237 52 100 50 160 110 90 155 575 158 Ø 7 0 720 550 515 Ø 25 Ø 2 5 620 Ø 100 150 575 42GW 012 016 020 kg 42GW 004 008 010 ...

Page 4: ...16 020 Water discharge pump 40GKX9001 Control 42GW9014 Control 42GW9015 Control 42GW9016 Control 42GW9017 Control CRC 33DFS RM Auxiliary board 42GW9013 Description Q ty Use Installation instructions 1 Unit installation Fresh air intake baffle 1 Air renewal Table IV Material supplied Technical data POWER INPUT Models Cooling Heating W A W A 42GWC004 42GWC004H 66 0 28 56 0 24 42GWC008 42GWC008H 78 0...

Page 5: ...tions or errors in the electrical or water connections Failure to observe the installation instructions or use of the unit under conditions other than those indicated in Table Operating limits of the unit installation manual will immediately invalidate the unit warranty Failure to observe electric safety codes may cause a fire hazard in the event of short circuits Inspect equipment for damage duri...

Page 6: ...ference of 200 mm from the top of the unit flattening or kinking the refrigerant pipes or condensate pipes installation in areas with high frequency waves only partial insulation of the piping Non level installation which will cause condensate dripping exposure to oil vapours connecting condensate piping to sewage system drain without appropriate trap Trap height must be calculated according to th...

Page 7: ...To close one or two air outlets use the special kit Install the unit as centrally as possible in the room the air flow direction can be controlled by manually regulating the louvres position according to the operating mode cooling or heating this will ensure optimum distribution of the air in the room During cooling mode operation the best position for the deflecting louvres is one which allows ai...

Page 8: ...ropylene or neoprene of 5 to 10 mm thickness If more than one unit is installed in the room the drain system can be made as shown in the drawing Align and level the unit by adjusting the nuts and locknuts on the threaded hangers maintaining a distance of 25 30 mm between the sheet metal body and the underside of the false ceiling Reposition the T bar and align the unit in relation to the bar by ti...

Page 9: ... upper coil connection is supplied with an air purge valve the lower connection with a water purge valve suitable for a 10 mm wrench or screw driver The coil is only partially drainable it it is advisable to blow air into the coil for complete drainage It is necessary when the installation is made to insulate the valve and the connection pipes with anti condensate material of polyethylene type or ...

Page 10: ...them to the case using the already pre assembled screws Mount the drain pan below the valve assembly inserting the discharge pipe into the special hole align and fix it to the 3 clips previously assembled using the three screws supplied Insulate the 3 screws and the drain pan lower part using the insulating material F To connect the steel pipes to the system ensure they are aligned and supported t...

Page 11: ... at TB3 terminals 1 2 4 and 5 which will control the valve opening Operation of the thermo electric valve This 3 way valve is an ON OFF type with a very slow stroke It is not a modulating valve so it has no PTC This valve is driven as a sensible element by the ambient thermostat of the cassette unit The thermo electric valve is normally closed towards the coil and open towards the bypass When the ...

Page 12: ... terminal 4 When the system is filled with water verify all couplings for tightness The manufacturer does not accept responsibility for the tightness of the field installed valve assembly and this is not tested in the factory He declines any responsibility for non functioning of these assemblies and for damage due to dripping Electrical connections Capacitor Ground connection screw Board Relay boa...

Page 13: ...n be reached by opening the grille and removing the metal covers using the 3 or 4 screws Wiring diagram legend Electrical connections Low speed Medium speed High speed Power supply line Heating selection Common thermostat heating Cooling selection Common thermostat cooling Neutral fan Neutral in Neutral out Neutral Heating out Cooling out Factory wiring Field wiring Connector Terminal on terminals...

Page 14: ...PE SYSTEM HEV CEV 5 4 3 2 1 TB3 CEV 5 4 3 2 1 TB3 5 4 3 2 1 N ST2 ST1 T3 T2 T1 L3 L2 L1 C HR N GND E HTR 2 5 PCB TB3 NRST ST2 ST1 4 HTR 3 HTR 2 HTR 1 HTR R R C C 230V 3N 60Hz 12 16 20 E N ST2 ST1 T3 T2 T1 L3 L2 L1 C HR N GND E HTR 2 5 PCB TB3 NRST ST2 ST1 4 HTR 3 HTR 2 HTR 1 HTR R R C C 400V 3N 50Hz 12 16 20 E N ST2 ST1 T3 T2 T1 L3 L2 L1 C HR N GND E HTR 2 5 PCB TB3 NRST ST2 ST1 2 HTR 1 HTR R R C ...

Page 15: ...rrugated aluminium externally covered with anti condensate material fibre glass of 12 25 mm thickness To complete the installation all non insulated ducts must be covered with anti condensate insulation ex expanded neoprene 6 mm thickness If these instructions are not observed condensate may drip the manufacturer will not be held responsible for any damage caused The two prepunched side knockouts ...

Page 16: ...itioned air supply to an adjacent room Diagram of conditioned air supply to an adjacent room one louvre closed In case of two louvres closed the fresh air flow towards the adjacent room is 50 higher compared with only one louvre closed with equal static external pressure Conditioned air supply to an adjacent room Air supply to an adjacent room requires that the outlet corresponding with the duct i...

Page 17: ...ving the cover panel The inspection or replacement of internal components such as fan motor coil condensate discharge pump float switch electric heater if fitted involve the removal of the condensate drain pan Condensate drain pan removal During the removal operation of the condensate drain pan protect the floor with a plastic sheet under the unit Remove the frame grille assembly by loosening the ...

Page 18: ...io 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 ...

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