UTI-INV module for FUJITSU unitsPDF
Contents
1. the coil heat exchanger which is integrated into storage tank place sensor inside the housing in order to reach bottom of the spiral heat exchanger USING OF EXTERNAL OUTPUTS Outputs ON DEF and ERR are a SSR Solid State Relay type It can be used to the status indication or to power supply the power elements with regard to the maximum allowable output current Note In some particular type of relay connected to external outputs the big inductance of the coils can cause unreliable feature of these switches Avoid this incidents please use relay with integrated overvoltage protection or integrated rectifier for example ELKO EP VS116 308 316 K TeSys LC7 K06 FINDER coupler 3851 etc For purposes of signalization and indication can be also used module ATW IRU2. TEST RUN Before first turning on the power please check if is electric connections for the module and the outdoor unit in right order After switching of power check the indicators E Module ATW C INV2 Flashing 2 color LED indicates the demand of compressor capacity and operation mode of outdoor unit see Tab 1 A Error indication Continuous green light of 2 color LED indicates missing the communi cation response from the outdoor unit E Outdoor unit If the outdoor unit is equipped by an error indication with LED lamps or alphanumeric display check the error status if is not indicated To decoding the errors use the Fujitsu General service documentation Installation manual Service manual Service Instructions Starting the outdoor unit In the case when is control signal from the master control system missing it is possible test device by using voltage 12V from the terminal marked as 12 directly to the input ON This can be provided by the wire jumper The desired mode cooling heating must be set up by input H C At the beginning LED of the module indicates 0 of power require ment for the compressor After running of initialization protection delay the power demand is gradually increasing up to 100 This interval may take up to several minutes During this time please keep checking operation of the compressor and outdoor unit fan by hearing After is 100 of the power reached then you can start test current of the
3. e e e e i Power supply LI N 1 Specification 1 of power supply Glo lele l ee wiring see boaedsegdtiit o r documentation of 5 xy eg yg g poe 230 VAC 1mA i 4 outd it o o og 2L In factory setting is not Used outaoor unl gt 2 SF os active Activation with he ATW SW or to order SE ee en ie eg ge oe et at ae is possible Tab 1 2 color LED indication cycle a type AOY b types AOYA AOYR AOYD AOYG HP rear essa amp coolin Tuo ooo coolin ecco m4 e000 amp reain eo se0e co _seeee SS 8 000o 7e eooo Accessory CE connector 5 ecco o a Shield 4 0000 5 3 000o 2 2 ecco 1 ecco Indication cycle 0 stop eee Note Lenght of the indication cycle in AOYG modules is 15 s in another types is 7 5 S Input 0 to 10V Demand of compressor capacity ETS A OV Stop 10V 100 temperature Input Cooling Heating ae of the Sod o indoor heat Ope e png exchanger close Heating INSTALLATION OF TEMPERATURE SENSOR ETS A Usage of the temperature sensor is necessary for correct module function Please follow this instruction during the installation Location and way of sensor installation must ensure perfect thermal contact with sensed surface for example location in the housing fixed with sleeve or thermally conductive sealant Sensor must be isolated from th
4. e influence of the surrounding air temperature eg by suitable temperature insulation Sensor must be always electrically connected with the module Module doesn t work without connected sensor It is necessary to meet correct electrical polarity of the sensor This can be ensured by the connection of the color coded sensor wires to the same color coded terminals of the module Module doesn t work with sensor which is wrongly connected Keep cable shield connection of the sensor to the device chassis or the switch box The maximum cable length of the sensor ETS A is 10m If you need extend original cable please follow no current grounding principles to avoid current loops If is cable over 2m long and if is located in environment with electromagnetic interference then we recommend to use Anti EMI ferrite elements with minimum impedance 150 Ohm 100MHz for example type CF4A 742 712 21 etc Sensor location Sensor in systems which are used only for cooling should be placed on the coldest part of the evaporator or on refrigerant return pipe gas pipe For air exchangers with cooling and heating functions is best sensor location approximately in the middle of the tube exchanger lenght In heat pumps air to water is sensor location dependant on the structural design For plate heat exchanger is suitable placed sensor to his lower part Right in the middle between water inlet and liquid refrigerant outlet In the case of
5. llation ELECTRICAL CONNECTING On enclosed scheme can be find general wiring of the supplied module Detailed specifica tion of inputs and outputs and possibility of their use are in the Technical Manual A WARNING Be careful Connecting wires between the module and outdoor unit must not be confused Possible destruction of the module and electronics of the outdoor unit Power and communication terminal of the module must not be used for power supply of the outdoor unit The Module may be power supply only from outdoor unit to which is communicatively connected Power supply from another source is unacceptable If the outdoor unit doesn t have separate terminal for indoor unit connection please use connection over fuse terminal of the outdoor unit If is not possible power supply module from outdoor unit or in case of request of separated power supply circuits then is necessary use optical separating modules ATW FIN ATW FOUT Basic circuit for cooling and heating applications A CAUTION Keep connection between Output Output Compressor Defrosting operation Output 230 VAC 230 VAC Error Max 0 4A module and outdoor unit in right order In case of wrong cable wiring is high possibility of destruction the module or electronics of the outdoor unit Connection cable max 1 6A 230 VAC A 3x Cu 1 5 2 5 mm 4 max 0 4A L phase wire N neutral wire l C communication S Pe e e e
6. unit and also working pressure of the refrigerant A caution If consumption of the heat from indoor unit is not provided for example if indoor heat exchanger is not connected indoor fan or circulation pump is not running then compressor may operate maximally 1 minute Manufacturer IMPROMAT KLIMA Co Ltd Tr T Bati 5267 760 01 Zlin Czech Republic tel 420 577 004 141 fax 420 577 149 e mail klima sale impromat cz IMPROMAT www impromat cz INSTALLATION MANUAL Module for controlling Inverter outdoor units 99200 ATW C INV2 type AOYG 99204 ATW C INV2 type AOYR 99202 ATW C INV2 type AOY 99104 ATW C INV2 type AOYD 99203 ATW C INV2 type AOYA 99210 ATW C INV2 type HP USING Module ATW C INV2 supply direct control of Fujitsu General Fuji outdoor inverter units in the cases when is necessary used heat exchanger of different maker and different construc tion Module ATW C INV2 replaces the previous type ATW C INV and ATW C INV2 with which is backward compatible PACKAGE CONTENTS C Module ATW C INV2 Temperature sensor ETS A This manual MECHNICAL PLACING Module with protection IP20 is designed for mechanical mounting on DIN rail situated inside of electrical switchboard or installation box For outdoor environment must be used only in facilities with adequate protection There is also possibility to locate module inside of outdoor unit in the electrical area but only if there is left enough space for insta
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