42JW 42JW INSTALLATION MANUAL

Transcription

1 LLOYD'S REGISTER QUALITY ASSURACE I S O 9 1 ISTALLATIO AUAL

2 Fan coil units Contents Page General information... Operating limits... Warnings: avoid... inimum clearances... Dimensions and weight... Installation... 5 Condensate drainage... 5 Water connections... 6 Water pressure drop... 6 Electrical connections... 7 Thermostat connection... 7 Wiring diagram... 8/9 Cooling capacities... 1 Heating capacities Ductwork... 1 Fan diagrams... 1 Checks/precautions before start-up... 1 Start-up... 1 aintenance... 1 Troubleshooting... 1 Accessories... 1 EGLISH odel Power supply V ~ 5Hz GB - 1

3 General information Unit installation Read this instruction manual thoroughly before using the unit. This unit complies with low-voltage (EEC/7/) and electromagnetic compatibility (EEC/89/6) directives. The installation must be carried out by a qualified installer. This unit will only work safely and correctly, if installed and tested by qualified personnel. Do not use damaged equipment. In case of a malfunction turn the unit OFF and disconnect the mains supply. The user should not work on any of the internal components, or subject the unit to operating conditions which are not specified in this manual. Serious damage may result and the guarantee would be invalidated. Repair and maintenance work should always be left to the installer. Units are designed for installation with ducts. If this is not the case, the installer must place a protection mesh in the discharge according to the standards in force. Disconnect the electrical mains supply prior to any maintenance operations or prior to handling any internal unit parts. Cleaning and maintenance operations must be carried out by specially trained personnel. Use this unit only for factory approved applications: the unit cannot be used in laundry or steam pressing premises. Be conscious of the room temperature and general comfort, particularly when this unit is used near children, senior or handicapped people. This unit contains rotating equipment (fan). Ensure that this is out of reach for children. All of the manufacturing and packaging materials used for your new appliance are compatible with the environment and can be recycled. Keep this installation manual safe and hand it over to the new owner in case of sale. Check that voltage and frequency of the mains power supply are those required for the unit to be installed; the available power must be adequate to operate any other possible appliances connected to the same line. Check that all current national safety code requirements have been followed for the installation. In particular ensure that a properly sized and connected ground wire is in place. Inspect equipment for damage due to improper transportation or handling: file an immediate claim with the shipping company. To work correctly, the air conditioner must operate only within the temperature indicated in the Operating limits table shown in this manual. If the unit is made to operate beyond the limits cited above, malfunctioning or water leaks may occur. Failure to observe electrical safety codes may cause a fire hazard in case of short circuits. All recommendations concerning unit installation are intended to be as a guideline. The installer should carry out the installation according to the design conditions and should comply with all applicable regulations for air conditioning and refrigeration installations. The manufacturer declines all responsibility in the case of modifications and electrical or water connection errors caused by a failure to observe the instructions shown in this installation manual or in the case of operation in conditions different to those for which the unit was designed. In these cases the guarantee is no longer valid. Choosing the installation site Positions to avoid: Exposed to direct sun. Too close to heat sources. On humid walls or positions with water hazard, e.g. laundry premises. Recommendations: Choose an area free from obstructions which may cause irregular air distribution and/or return. Location should be able to support unit operating weight. Consider using an area where installation is easy. Choose a position that allows for the clearances required (see drawing). Look for a position in the room which assures the best possible air distribution. Install unit in a position where condensate can easily be piped to an appropriate drain. Table I: Operating limits Water circuit Water- side maximum pressure inimum entering water temperature: 5 C 1 kpa (1 m Water Gauge) aximum entering water temperature: 7 C Indoor temperature inimum temperature: 5 C (1) aximum temperature: C Power supply ominal single-phase voltage V ~ 5Hz - min. 198V - max. 6V (1) If the outdoor temperature can go down to C, it is advisable to empty the water circuit to avoid breaks caused by ice (see paragraph on water connections). GB -

4 Warnings: avoid, minimum clearances EGLISH Exposure to direct sunshine, when unit is operating in cooling mode; always use shutters or shades. Connecting condensate piping to sewage system drain without appropriate trap. Trap height must be calculated according to the unit discharge head in order to allow sufficient and continuous water evacuation. Installation not correctly levelled which will cause condensate dripping. Flattening or kinking pipes or condensate pipes. Only partial insulation of the piping. Any slack in the electrical connections. inimum clearances (mm) GB -

5 Dimensions (mm) and weight P Ø A Ø / Ø / E D G H 8 B Ø A 8 8 I AG AH Ø / Ø / S C AA T J L AF Z K AC AD AC AE X 18 Y F AJ AK AL A AB Ø A U Q V W R V Ø A 5 5 kg 6 6 U Q Indoor coil Fan Drain pan Drain connection Ø A Outside air intake Electrical box Unit support Air filter Water inlet Ø / Water outlet Ø / A B C D E F G H I J K L P Q R S T U V W X Y Z AA AB AC AD AE AF AG AH AJ AK AL 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 packing. Do not put on the packing heavy tools or weights. EGLISH If necessary, a rubber or neoprene sheet can be placed between the ceiling and the unit. IPORTAT: The unit must be perfectly levelled. IPORTAT: Do not lift the unit by the condensate drain discharge pipe, or the connect couplings. Unit installation will be facilitated by using a stacker operating at 15 to 18 mm from the ceiling. Vibration absorbers should be provided throughout the installation to prevent noise from being transmitted. IPORTAT: ake sure that all unit panels are fixed in place before moving. Raise and set the unit down carefully. Unit False ceiling Ceiling Register cover Once all these operations have been completed, the false ceiling to hide unit may be installed, but a removable cover must be included for future maintenance. Grilles of an adequate size should be incorporated in the unit for the return air. Condensate drainage Installation inimum 5% slope Screws-in rod Shoch absorbers Washer ut Insert 8 threaded rods into the celling. Introduce the other end of the rods through the slots of unit suspension brackets. Position the shock absorbers, add washers and screw the nuts down until the unit is correctly suported. All units are provided with an inside condensate drain pan which incorporates a drainage tube outside Ø mm (5) and 5 mm (9,16). A tube for evacuating condensates must therefore be provided. The recommendations below must be followed in all cases: Use galvanized steel, copper or plastic piping. Do not use an ordinary garden hose. Use a material that guarantees perfect water tightness on the drainage pipe. If a rigid material has been used for the drainage, it is necessary to provide some kind of elastic coupling in the drainage line to absorb possible vibrations. The drainage line should always be below the connection itself, and should also slope to facilitate drainage. If ambient temperatures below freezing are expected, the drain tube should be protected against the formation of ice. To do so, a trace heater wire should be installed in the drain connection. This should be independent from the unit power supply, and come into operation before the temperature drops below C. WARIG: o dril holes should be made in the base of the unit, since the drain pan may be perforated. GB - 5

7 Water connections LEGED Water chiller fan coil units Water circulating pump Inertial accumulator Expansion vessel Pressure gauges anual shut-off valves esh filter Pressure ports Thermometers Flow switch Automatic purge Drain Charge valve Flexible coupling ake the heat exchanger water connections with the necessary components, using material which will guarantee that the screwed joints are leakproof. Figure shows a typical water circuit installation in an air conditioning system. For an application with a water circuit, the lollowing recommendations must be taken into considerationt: 1. The water pump should pump into the evaporator, and draw from the installation side.. It is advisable to install shut-off valves to allow isolation of the most important circuit components as well as the chiller itself. These valves (ball, globe and butterfly valves) should produce a minimum loss of charge when they are open.. Provide unit and system drains and vents at the highest system point.. Install purge valves in the highest part of the circuit. 5. Pressure ports and pressure gauges should be installed upstream and downstream of the water pump. 6. Thermometers should be installed in the unit water inlet and outlet. 7. The installation must include a flow switch in a straight horizontal pipe run, with a length of a minimum of 5 times the line diameter before and after the switch. The flow switch must be located in the inlet piping of the refrigerant-water heat exchanger. If this is not possible, the installation must include a protection system, activated when no water circulates in the heat exchanger. It is essential to ensure sufficient water circulation in the heat exchanger. 8. All piping must be adequately insulated. 9. After the installation or after circuit repair the whole installation must be cleaned completely, with special attention to the filters. Water pressure drop Water flow, l/s l/s kpa kpa kpa GB - 6

8 Electrical connections IPORTAT: ake earth connection prior to any other electrical connections. ake electrical connections between units prior to proceeding to the mains supply unlt connectlon. The mains supply must be connected to the water chiller. Ensure that the mains supply connection is made through a switch that disconnects all poles, with contact gap of a least mm. The mains supply connecting cable as well as interconnecting wires must be H7 R-F type (or higher), synthetic rubber insulation with eoprene coating, according to E 65-- and HD77.S1 codes. Remove electric box cover. Connect the wires to the terminals according to the wiring diagram. After connections have been completed, replace electric box cover. If the unit is fitted with an electric heater, this must have a separate power supply. ote: All field electrical connections are the responsibility of the installer. Table II: Electrical data EGLISH Connections wire minimum size between water chiller and indoor unit mm Remote control connection (thermostat) Thermostat/unit connection must be carry out via a cable (wire section 1 mm ) in accordance with the wiring diagram supplied with the control. This always depends on the type of installation selected. Follow the instructions supplied with the control for thermoslat assembly and handling Power supply V ~ 5Hz ominal power input W ominal current drawn A Starting current A otor at high speed. Table III: Electric heater (accessory) odel Electric heater capacity kw Power supply V ~ 5Hz ~ 5Hz ~ 5Hz ~ 5Hz ~ 5Hz ~ 5Hz ax. current drawn A Power supply cables mm x 1.5 x.5 x.5 x 6. 5 x.5 5 x.5 Recommended fuse (gl type) A ax. cable lenght m Y-G 1 1 B R W A C V1 V V V V1 V V V Terminal box legend Earth Live eutral V1 Low fan speed V edium fan speed V High fan speed V Super high fan speed Wire colours A Brown B Blue C Black R Red W White Y-G Yellow-green Connecting cable between water chiller and indoor unit GB - 7

9 Wiring diagrams Diagram of regulation heating-cooling with thermostat controlling the air flow Diagram of regulation heating-cooling with thermostat controlling the water flow (1 coil) Diagram of regulation heating-cooling with thermostat controlling the water flow ( coils) ( ) ( ) F1 V1 V V V 1 T1 V V F1 V1 V V V 1 F1 V1 V V V 1 T1 V V X1 X V1 1 ~ X1 X C 1 ~ X1 X C X5 Y1.1 Y1. V1 ~ + ~ V 1 ~ C X5 Y1.1 ~ + ~ V T1 V V V1 X5 ~ + ~ V Ventilation: automatic Ventilation: O Y1. Diagram of cooling regulation with thermostat controlling the water flow or electric heating ,5kW V-1-5Hz PE Q1 Electric heaters 5 kw V-1-5Hz PE Q1 F F F1 V1 V V V 1 PE F11 PE F11 K K 5 K5 F1 K6 X1 X K5 X X V V V V1 V V V V V V V V1 K6 X5 Y1.1 T1 V V V1 ~ + ~ V 1 F9 F1 1 R1 1,5 kw 9-6kW V-1-5Hz PE Q1 1 1 R1 kw 16,5-9kW V--5Hz PE L L Q1 K F F 1 ~ C Unit connection terminal box Electric heater terminal box PE K F11 R1 kw 6 kw PE K F11 R1,5 kw 9 kw GB - 8

10 Wiring diagrams EGLISH Diagram of regulation heating-cooling with thermostat controlling the air flow Diagram of regulation heating-cooling with thermostat controlling the water flow (1 coil) Diagram of regulation heating-cooling with thermostat controlling the water flow ( coils) ( ) ( ) F1 V1 V V V 1 F1 V1 V V V 1 F1 V1 V V V 1 X1 X X1 X Y.1 Y. X1 X Y.1 1 ~ C 1 ~ C 1 ~ C Y. Ventilation: automatic Ventilation: O Terminal box legend V1 Low fan speed V edium fan speed V High fan speed V Super high fan speed eutral Legend ain electrical box terminals Auxiliary electrical box terminals Connection electrical box terminals Factory wiring Option wiring Field wiring C Fan motor capacitor F1 ain fuse F Electric heater fuse F9 Electric heater thermal protector F1 Electric heater thermal protector F11 Circuit breacker (opt./accessory) F1 Electric heater thermal protector K Electric heater contactor K5 Auxiliary relay (opt./accessory) K6 Auxiliary relay (opt./accessory) Fan motor 1 Remote control (optional) Remote control (optional) Automatic remote control (optional) Q1 ain switch R1 Electric heater (opt./accessory) T1 Transformer V1 Rectifier bridge (opt./accessory) X1 Fan connector X Fan connector X Heating auxiliary connector X Heating auxiliary connector X5 Transformer board (accessory) Y1.1 Cooling motorized valve V= Y1. Heating motorized valve V= Y.1 Cooling motorized valve V~ Y. Heating motorized valve V~ ote: The connection sequence does not represent the physical lay-out. 5 K5 Diagram of cooling regulation with thermostat controlling the water flow or electric heating F1 K6 F V1 V V V 1 X1 X K5 X X 1 ~ C 1 V V V V1 V V V V V V V V1 Unit connection terminal box Electric heater terminal box K6 Y.1 1 F9 F1 K GB - 9

11 Cooling capacities Entering water temperature T C Sensible capacity Total cooling capacity (kw) (kw) Entering air temperature, dry bulb C Entering air temperature, wet bulb C 1 Correction factors Cooling Fan speed Cooling Air flow % edium Low CAP,97,95 SHC,96,91 9 CAP,97,95 SHC,96,91 16 CAP,97,95 SHC,96,91 CAP = Total cooling capacity SHC = Sensible cooling capacity 5 CAP SHC CAP SHC CAP SHC GB - 1

12 Heating capacities EGLISH 5 T ( C) (l/s) 9 T ( C) 1 (kw) (l/s) 16 T ( C) 1 (kw) (l/s) (kw) 1 Entering water temperature - Indoor air temperature Water flow Heating capacity Correction factors Heating Fan speed edium Low Heating Air flow % GB - 11

13 Ductwork IPORTAT: Duct calculation and design must be effected by a qualified technician. The duct dimensions should be determined in accordance with the air flow and with the available static pressure of the unit. It is advisable to follow the below suggestions: Whatever type of duct is used, it should not be made of materials which are flammable, or which give off toxic gases in the event of a fire. The inside surfaces should be smooth, and not contaminate the air which passes through. At the points where the duct joins with the unit, it is advisable to use a flexible connection which absorbs vibration and prevents the transmission of noise inside the ductwork. Bends should be avoided as much as possible near the unit outlet. If unavoidable, they should be as slight as possible, and internal deflectors should be used when the duct is of large dimensions. Fan diagrams Super high speed (optional) -High speed -edium speed -Low speed External static pressure (Pa) Air flow (l/s) GB - 1

14 Checks before start-up, start-up, maintenance and troubleshooting EGLISH Checks before start-up Ensure that all electrical connections are properly tightened. Ensure that the unit is level and well supported. Check that water circuit has sufficient water flow and that the pipe connections comply with the installation diagram. Ensure that there are no water losses. Verify the correct operation of the system valves. All the panels should be fitted and firmly secured with the corresponding screws. During unit operation all panels should be in place, including the electrical box access panel. If it is necessary to cut the lines of the water circuit, tube cutters should always be used and never tools which produce burrs. Tube Tube insulation Fastening tape Finally wrap connections with anti-condensate insulation and tighten with tape, without exerting great pressure on the insulation. Repair and cover any possible cracks in the insulation. Carefully insulate the pipes close to the valve couplings to prevent condensate from forming on them and possible dripping. Repair and cover any possible cracks in the insulation. Verify the correct operation of the system valves. All the panels should be fitted and firmly secured with the corresponding screws. ake sure that there is enough space for maintenance. Check the drain connections. Check that power supply agrees with the unit nameplate rating. Start-up Actual start-up should only be done under the supervision of a qualified refrigeration mechanic. Switch the unit O via the wired remote control. Relevant instructions are supplied with the control. aintenance ATTETIO: Before performing any service or maintenance operations, turn OFF the main power switch. In order to obtain maximum performance from the unit special attention should be paid to the following points: Electrical connections: ake sure that all the electrical connections are properly tightened, and that all the electrical components (contactors, relays, etc.) are firmly secured to the corresponding rails. Pay special attention to the condition of the connecting cables between the control elements and the electrical box, and to that of the unit power supply cable. They should not be twisted and there should be no slits or notches in the insulation. Check the starting and running consumptions are within the limits shown in the corresponding technical information. Water connections: Ensure that there is no water leakage in the system. If the unit is expected to be shut down for a prolonged period, empty the water from the system. This operation is essential if temperatures are expected to drop below C. Lubrication: Both motor and fans have factory lubricated and sealed bearings, and need no further lubrication. Clean or replace the air filter of the indoor unit. Troubleshooting Air conditioner will not start: ain supply switch is OFF; switch to O. Fuses on main switch are burnt out; replace fuses. Selected temperature is higher than the room temperature (or lower in the heating mode). Air conditioner is not supplying sufficient capacity: Free air circulation is obstructed on the unit. Dirty filters reduce air quantity circulating. Doors and/or windows are open. Fan speed has been set to 'low'. The indoor unit air flow grill is not directed for optimal ventilation. Selected temperature is not correct. The water flow rate is insufficient Air present in the hydraulic circuit Thermo-electric valve does not open. A slight whistling noise is heard when the air conditioner starts or stops: This is water circulating. Unpleasant smells coming from the unit: Unpleasant odours may originate from substances accumulated on the unit air filter. Stop unit and clean filters after switching mains supply off. Restart unit in the ventilation (fan only) mode and open windows to change room air. Restart air conditioner after having corrected the faults. If the above actions do not correct the unit operation, contact the authorized Zone Assistance Centre. Air filter GB - 1

15 Accessories Table IV: Accessories Description Part number Electric heater kw 1,5 JXS91 Electric heater kw JXS9 Electric heater kw JXS9 SElectric heater kw 6 JXS95 Electric heater kw,5 JXS9 Electric heater kw 9 JXS96 Hot water coil JXS97 Hot water coil JXS98 Hot water coil JXS99 Condensate pump kit JXS9 ixing box for fresh air JXS91 ixing box for fresh air JXS911 ixing box for fresh air JXS91 Suction plenum - pre-punched box JXS91 Suction plenum - pre-punched box JXS91 Suction/discharge plenum - pre-punched box JXS915 Discharge plenum - pre-punched box JXS916 Discharge plenum - pre-punched box JXS917 Discharge plenum - Octopus - outlets 1 mm JXS918 Discharge plenum - Octopus - outlets 1 mm JXS919 Discharge plenum - Octopus - outlets 18 mm JXS9 Discharge plenum - Octopus - outlets mm JXS91 Discharge plenum - Octopus - outlets mm JXS9 High-efficiency filter (95 %) JXS95 High-efficiency filter (95 %) JXS96 High-efficiency filter (95 %) JXS97 otorised valve with bypass (cooling coil) JXS9 otorised valve with bypass (heating coil) JXS97 otorised valve with bypass (heating coil) JXS98 otorised valve with bypass (heating coil) JXS99 anual room thermostat at V ( fan speeds) JXS9 anual room thermostat at V - fan speeds - (unit with hot water coil or electric heater) JXS9 Optional GB - 1

16 L11H68-5 Via R. Sanzio, 9-58 Villasanta (I) Italy - Tel. 9/66.1 The manufacturer reserves the right to change any product specifications without notice. Order o. 15-7, ay. Supersedes Order o. 15-7, arch. Printed in Italy