Carrier 42GW manual

42GW • L L O Y D ' S R E G I S T E R Q U A L I T Y A S S U R A N C E I S O 9 0 0 1 INST ALLA TION MANU AL[...]

ENGLISH GB - 1 42 GW “Hydronic Global Cassette” Fan Coil Units Contents P a ge Dimensions and weights ........................................................................ 2 T echnical data ........................................................................................ 3 General information ..........................................[...]

42 GW GB - 2 Dimensions and weights 42GW 004 008 010 012 016 020 Unit 17.5 19 19 36 38 38 Frame/Grille assembly 333555 813 595 960 298 120 225 280 Ø 150 440 88 160 825 11 2 70 125 825 120 ø150 298 237 52 100 50 160 11 0 90 155 575 158 Ø 70 720 550 515 Ø 25 Ø 25 62 0 Ø 100 150 575 42GW 012 - 016 - 020 kg 42GW 004 - 008 - 010[...]

42 GW GB - 3 ENGLISH T able III: T echnical data of electric heaters (if installed) IMPORT ANT : The electric heater must always be factory installed (mod. 42GWE/H...). The use of other eletric heaters is absolutely prohibited. Failure to follow this safety requirement causes unit damage and voids the warranty . T able I: Nominal data • The power[...]

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[...]

GB - 5 42 GW ENGLISH A void... MAX 3 m MAX 3 m MAX. 200 mm ... 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. ... ascending sections of condensate drain pipi[...]

42 GW GB - 6 Installation   Prior to installation It is advisable to place the unit as close as possible to the installation site before removing it from the packaging. The grille panel and the control are separately packed for maximum protection. IMPORT ANT : Do not lift the unit by the condensate drain discharge pipe; hold it by its four co[...]

GB - 7 42 GW ENGLISH Installation  Threaded hangers  "T" bar (to be removed)    False ceiling  Spirit level             Suspension brackets  mm • T o ensure correct condensate water flow , the drain pipe should have a gradient of 2% without obstructions. Furthermore an odour tr[...]

42 GW GB - 8 A B Installation Installation of grille/frame assembly Carefully unpack the assembly and check for damage sustained in transit. Attach the assembly to the unit by using the two hooks. Use the screws supplied to fix the frame in position.  Frame pre-hooking support  Safety belt  Frame fixing screw A. Gasket "A" B. Gas[...]

GB - 9 42 GW ENGLISH • The unit control circuit only allows opening of the motorized valve when the fan motor is working. (See wiring diagrams) • When the thermostat asks for cooling, terminal 1 of TB3 (cold water) is supplied with 230V . When it asks for heating, terminal 2 of TB3 (hot water or electric heater) is supplied with 230V . • The [...]

42 GW GB - 10  Fan speed H = high speed M = medium speed L = low speed  Heat  Cool Motorized valve and control 230V valve connection or 230V valve relay connection Instructions for field supplied valves W ater connection • Install valves following manufacturer's instructions; refer to the relevant figures for connection to the unit.[...]

GB - 11 42 GW ENGLISH Motorized valve and control • If these connections are not made as described the drain pan condensate may overflow . • V alves 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 terminal 4. • The optional electric heater (mod. 42GWE) which can only be factory i[...]

42 GW GB - 12 IMPORT ANT for units with electric heaters; The unit is equipped with two thermostats: one with automatic reset and one with manual (electric) reset that can be reactivated by switching the power supply off and then on. Connect the power cables to terminal box connectors in accordance with the wiring diagram and tighten firmly . IMPOR[...]

42 GW GB - 13 ENGLISH Electric heater supply Valves connection: select the diagram according to the system type 햻 햺 햹 햸 햲 햳 햴 햵 햶 햷 햿 헀 W W R A C C C C Y- G Y- G G G C C B B Y- G Y- G R R R R 12 3 4 5 67 9 1 23 67 81 0 11 5 4 3 2 1 TB3 TB1 HR F1 CR PR PCB IFM PS 1 2 FS 2 1 C2_F C2_M 2 1 3 2 C1_F 1 C1_M 1 2 3 6 5 4 3 2 1 C3_M[...]

42 GW GB - 14        Air intake grille Fresh air renewal and conditioned air supply to an adjacent room • Side knockouts allow connection of fresh air inlet ducts and ducts to deliver conditioned air to an adjacent room. • Remove the external prepunched anti-condensate insulation and take away the knockout panels using a[...]

GB - 15 42 GW ENGLISH Air flow m 3 /h Available static pressure - Pa Fresh air renewal • The optional supplementary fan for fresh air intake (field supplied) has to be connected to terminal block as per diagrams enclosed. Fan motor operation is parallel to the thermo-electric control valve, and the motor stops when the valve shuts off. • For wi[...]

42 GW GB - 16 Maintenance and owner's guide Maintenance Cleaning and maintenance operations must be carried out by specially trained personnel. Before performing any service or maintenance operations, turn OFF the main power switch. T o open the unit grille: T urn the two screws through 90 ° (1/4 turn). Filter cleaning Clean filters in accord[...]

L010122H22 - 0405 Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - T el. 039/3636.1 The manuf acturer reser ves 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[...]