Use and maintenance manual air cooled water chillers and heat pumps r-pae / r-pah / eah rev. 1 03/09.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 table of contents 1. Introduction ........................................................................................................................... Pag. 2 1.1 manual content ..................
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 1. Introduction 1.1 manual content the present handbook, originally written in italian, was completed in compliance with the “machinery directive”. It contains all the necessary information for carry...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 warning: on the first startup, duly fill in the relevant report attached to this manual and send a copy to emicon a.C. (customer service), in order to make the warranty valid. 1.5 readers of the manu...
Type of unit: r = water chiller p = heat pump e = high efficiency type of compressor: type of condensation: a = air-cooled e = hermetic scroll h = screw s = semi-hermetic unit cooling capacity number of independent cooling circuits refrigerant gas: k = r 407c ka = r 134a kc = r 410a none = r22 r a e...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 3.2 main components the units of r-pae / r-pah / eah series are made of the following main components: Ø the housing is made of galvanized and painted pressure bended steel plate or housing made of a...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 rae - pae with centrifugal fans picture 2 rah – pah - twin version picture 3 6.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 rah picture 4 key 1) electric panel 2) compressor 3) heat exchange coil 4) evaporator 5) tank 3.3 cooling circuit picture 5 7.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 6 picture 7 8.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 8 picture 9 9.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 10 picture 11 10
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 12 picture 13 11.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 14 picture 15 12.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 16 picture 17 13.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 3.3.1 cooling circuits key 3.4 technical specification the main technical features of the units are shown in the attachments. 3.5 dimensional drawings the drawing of the unit, here attached, shows th...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 cs: compressor inrush counter ds: star/delta compressors startup fa: condensing coil protection filters gp: protection grid for condensing coil gp1: protection grid for the technical section (compres...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4. Installation 4.1 identification tag the data for the identification of the unit are marked on a permanent tag (picture 18). Picture 18 – identification tag the correct unit identification by means...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4.3 handling the handling of the unit must be carried out by expert personnel, equipped with appropriate equipment in relation to the weight and to the dimensions of the machine. During the handling ...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 20 – lifting of centrifugal units picture 21 – lifting of rae / pae 752 - 3172 18.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 22 – lifting of rah / pah twin 2102 - 8802 picture 23 – lifting of rah / eah 301 - 2214 19.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 in case the manufacturer lifting kit (option) is not employed, make sure that the lifting equipment used, the cables and the belts are in compliance with the relevant local regulation. The overall di...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 25 – service area for rae / pae 131 - 822 rae / pae version c 131 - 181 picture 26 – service area rae / pae 752 - 3172 21.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 27 – service area for rah / pah twin 2102 - 8802 picture 28 – service area for rah / eah 301 - 2214 22.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 29 – service area for rae / pae version c 201 - 822 picture 30 – service area for rae / pae 842 - 2602 version c 23.
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 31 – distances in case of coverings before starting to handle the unit to position it, it is necessary to identify the best way to arrive to the place, taking into consideration the unit over...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 Ø the unit must be connected to the hydraulic system by using the appropriate areas as indicated in the commercial drawing here attached. Ø the diameter of the hydraulic connections are shown in the ...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4.5.2 use of anti-freeze mixtures in case an anti-freeze mixture is used, it is necessary to follow some precautionary measures: Ø the temperatures shown in the above table are approximate. Sometimes...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4.6 electric connections check the electric circuits have not been damaged during transportation. Check all terminals screws are tight. Make sure the power tension and frequency match the same data a...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4.6.2 warning in case of connection to the terminal board when optional “ te” is installed in case the unit is provided with optional te (electronic thermostatic valve), pay the maximum attention to ...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4.6.3 user’s terminal board connection a user terminal board (picture 35) is available with free contacts designed for : Ø generic alarm state (1); Ø unit remote on/off (2). Check the wiring diagram ...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 4.6.4 instructions for the electric connection the electric connection must be carried out by skilled personnel. The power cable input is shown in the attached dimensional scheme. Picture 36 the powe...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 39 4.6.5 phases sequence in the power supply line the rotation direction of all electric motors installed on the unit (compressors, fans, pumps) are checked and harmonized during the operatio...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5. Operation 5.1 first check before starting the unit, make sure that: Ø the evaporator water side is supplied with a suitable water flow according to the project; Ø the hydraulic connections are car...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5.4 fault alarm and display system the troubleshooting is realized by the microprocessor, which activates an alarm and shows on its display the type of fault occurred (see also the attached microproc...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 trouble possible cause corrective action 5. The high pressure switch is activated a) the high pressure switch is not set properly or is defective b) discharge pressure too high replace the high press...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 trouble possible cause corrective action a) automatic switch activated reset the automatic switch; check the cause for the activation 11. The compressor does not work b) compressor internal heat prot...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 b) vacuum and dehydratation to obtain a good level of vacuum, an appropriate pump must be used (1,4 mbar of absolute pressure, 30 l/min. Of water capacity). If the circuit has been open only for shor...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5.6.3 check of the setting up the setting up must be checked while the unit is working in conditions as close as possible to the nominal ones. Make sure: Ø the thermal load is adequate; Ø the water c...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5.7 precautionary planned maintenance list of operations every 6 months every year check of cooling lines and of their insulation x compressor noise level check x electric connection tightening check...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5.7.1 coils cleaning (on the floor and under coverings) use a stiff-bristle brush and the necessary equipment; the use of an industrial vacuum cleaner may facilitate this operation. A. Disconnect the...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 44 5.7.7 check of the gaskets on the centrifugal fans discharge the centrifugal fans discharge is connected to the external skirt by means of a flexible gasket; the gasket must not be damaged...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5.7.11 belts tension check – belts replacement while making the check, the unit main switch must be open (“0” position) and locked. The padlock key must be kept by the person in charge of the check. ...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 45 picture 46 the pictures show two different types of remote control switches: the one shown on picture 45 is equipped with a detached protection, while the one shown on picture 46 is equipp...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 picture 47 picture 48 1. Remove the fusebox cover. 2. Take the extractor tool “2” located inside the electrical panel. 3. Insert the puller into the fuse spring clips (see the white circle on picture...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 the motor pulley is of adjustable type. If to unscrew the fixing dies the regulation must be changed, it is necessary to mark the original position with an indelible felt-tip pen and count the turns ...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 5.8 special maintenance operations the operations listed here below must be performed only by skilled service personnel equipped with the suitable equipment and only when the unit is stopped and disc...
Use and maintenance manual air-cooled water chillers and heat pumps r-pae/r-pah/eah rev. 1 del 03/09 6. Dismantling when the unit has to be dismantled, drain the cooling circuit and collect the refrigerant gas by means of an adequate receiver, in order to protect people and environment. Never releas...
Emicon a.C. S.P.A. Reserves the right to make changes to its products without any prior notice..
Emicon a.C. S.P.A. Via a.Volta 49 meldola tel. +39 0543 495611 fax +39 0543 495612.
