Instruction/ maintenance manual of the product 42GW Carrier
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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 ......................................................
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 2.
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 .
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 .
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.
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.
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.
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.
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 .
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.
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 .
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-.
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.
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.
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).
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.
An important point after buying a device Carrier 42GW (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 42GW yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 42GW - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 42GW you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 42GW will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 42GW, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 42GW.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 42GW. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 42GW along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
