Emicon EMIBYTE RCE Series Use And Maintenance Manual

Air condensers with axial fans

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The instructions unit manuali s composed by the following:

• Conformity declaration

• Technical Manual

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MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021

AIR CONDENSERS WITH AXIAL FANS

RCE - RCE-S

USE AND MAINTENANCE TECHNICAL MANUAL

Read and understand all the

present Manual before any

intervention.

Original Instructions

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Page 1 AIR CONDENSERS WITH AXIAL FANS RCE - RCE-S USE AND MAINTENANCE TECHNICAL MANUAL The instructions unit manuali s composed by the following: • Conformity declaration • Technical Manual Read and understand all the Instructions: present Manual before any Referring to the specify intervention.
Page 2: Conformity Declaration
RCE - RCE-S - Air Condensers with Axial Fans The copy, transmission or memorization of the present Manual is forbidden in any form without the written authorisation from the Manufac- turer. The Manufacturer could be contacted to receive any information about his products. instructions about use and maintenance without any prior notice.
Page 3: Table Of Contents
RCE - RCE-S - Air Condensers with Axial Fans INDEX 1. INTRODUCTION ..................................... 1.1 Preliminary information ..............................1.2 Instruction content and pourpose ............................1.3 Instruction conservation ..............................1.4 Instruction updating ................................1.5 Instruction use ................................... 1.6 Residual risks ..................................1.7 Safety symbols generality ..............................1.8 Safety symbols ..................................
Page 4 RCE - RCE-S - Air Condensers with Axial Fans 8.DIAGNOSIS AND TROUBLESHOOTING ............................................................... MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 5: Introduction
RCE - RCE-S - Air Condensers with Axial Fans 1. INTRODUCTION 1.1 Preliminary information The copy, transmission or memorisation of the present Manual is forbidden in any form without the written authorisation from the Manufac- turer. The unit which the present Manual refers is designed only for the uses presented in the following pages, comply with their performances and characteristics.
Page 6: Residual Risks
RCE - RCE-S - Air Condensers with Axial Fans 1.6 Residual risks The units are deigned to reduce at minimum the risk for the people who will use them. Anyway is impossible to eliminate completely the risk, so is strictly necessary refers to the following prescription in order to avoid them at the maximum.
Page 7: Safety Symbols Generality
RCE - RCE-S - Air Condensers with Axial Fans 1.7 Safety symbols generality ISO 3864-2 complied safety symbols : PROHIBITION Black symbol inside a red circle with red diagonal indicates a forbidden action. ADVISE A black graphic symbol inside a yellow triangle with black edges indicates a danger. MANDATORY ACTION A white symbol inside ina blue circle indicates a mandatory action to avoid a risk.
Page 8: Safety Symbols
RCE - RCE-S - Air Condensers with Axial Fans 1.8 Safety symbols GENERIC DANGER Follow strictly all the advises near the symbol. Failure to follow the indications could generate user health risks. ELECTRICAL DANGER Follow strictly all the advises near the symbol. The symbol indicates unit components or, in the present Manual actions could generate electrical risks.
Page 9 RCE - RCE-S - Air Condensers with Axial Fans Every unit has a plate which contains it’s main information. The plate data could be different from the technical Manual because in the Manual are mentioned the standard unit data without any accessory. On the Serial number plate is also mentioned the refrigerant charge.
Page 10: Safety
RCE - RCE-S - Air Condensers with Axial Fans 2. SAFETY 2.1 Advise about toxic substances potentially dangerous • • The oil used into the unit cooling circuit is polyester type. Anyway refers always to the compressor’s plate. to their Producers. Read carefully the following ecological information and instructions.
Page 11: First Aid Measures
RCE - RCE-S - Air Condensers with Axial Fans 2.2.1 High quantity steam inhalation The atmospheric refrigerant concentration has to be minimum reduced (lower then overmentioned professional exposition limit). Be infor- med that the steam is havier then air so high concentrations can stay near the ground, where the general ventilation is low, is suggested to ensure an adequate ventilation in order to avoid it.
Page 12: Technical Characteristics
RCE - RCE-S - Air Condensers with Axial Fans 3. TECHNICAL CHARACTERISTICS 3.1 Unit description Remote condensers with low rpm axial fans for external installation, completely assembled and tested at the factory. The condensers can on demand. The unit is equipped with the condensing pressure control on each circuit. On 2-circuit units, the modulating fan speed regulator with phase control is standard: in this case, priority is given to the circuit where pressure is higher.
Page 13: Other Version
RCE - RCE-S - Air Condensers with Axial Fans 3.2 Other version In order to allow operation down to such external air temperature, we provide a kit of components to be installed close to the remote condenser that include: liquid receiver, condensing control valve, non-return valves, safety valve, self-regulating heating coil and insulating material.
Page 14: What Is The E.v.i. Technology (Enhanced Vapour Injection)
RCE - RCE-S - Air Condensers with Axial Fans 3.4 What is the E.V.I. technology (enhanced vapour injection) 3.4.1 Single circuit remote condenser technical data - Standard version 091 Kc 111 Kc 211 Kc 311 Kc 421 Kc 571 Kc 671 Kc 991 Kc 1101 Kc 1501 Kc Heating capacity 11,1 19,2...
Page 15 RCE - RCE-S - Air Condensers with Axial Fans 3.4.3 Double circuit remote condenser technical data - Standard version 302 Kc 482 Kc 602 Kc 752 Kc 862 Kc 1052 Kc 1152 Kc 1252 Kc 1602 Kc 1702 Kc Heating capacity 29,4 44,2 60,5...
Page 16: Matching Between Indoor Unit And Remote Condenser
RCE - RCE-S - Air Condensers with Axial Fans 3.5 Matching between indoor unit and remote condenser 3.5.1 DX.A - Standard remote condenser Single circuit Double circuit Oversize - Single circuit Oversize - Double circuit DX.A 61 RCE 091 Kc RCE 091 Kc DX.A 71 RCE 091 Kc...
Page 17 RCE - RCE-S - Air Condensers with Axial Fans 3.5.2 DX.A - Remote condenser low noise version Single circuit Double circuit Oversize - Single circuit Oversize - Double circuit DX.A 61 RCE-S 151 Kc RCE-S 151 Kc DX.A 71 RCE-S 151 Kc RCE-S 151 Kc DX.A 91 RCE-S 151 Kc...
Page 18 RCE - RCE-S - Air Condensers with Axial Fans 3.5.3 DXi.A - Standard remote condenser Single circuit Double circuit Oversize - Single circuit Oversize - Double circuit DXi.A 61 RCE 091 Kc RCE 111 Kc DXi.A 111 RCE 111 Kc RCE 211 Kc DXi.A 121 RCE 111 Kc...
Page 19 RCE - RCE-S - Air Condensers with Axial Fans 3.5.4 DXi.A - Remote condenser low noise version Single circuit Double circuit Oversize - Single circuit Oversize - Double circuit DXi.A 61 RCE-S 151 Kc RCE-S 151 Kc DXi.A 111 RCE-S 151 Kc RCE-S 151 Kc DXi.A 121 RCE-S 151 Kc...
Page 20: Installation
RCE - RCE-S - Air Condensers with Axial Fans 4. INSTALLATION 4.1 General advices and symbols use Before to operate any intervention the technicians has to know perfectly the unit functioning and all its compo- nents, also for having read the present Manual. The maintenance operations has to be performed by well trained technicians in compliance with national legislation in the country of destination.
Page 21: Receipt And Inspection
RCE - RCE-S - Air Condensers with Axial Fans 4.4 Receipt and inspection During the installation or any intervention it is mandatory to follow strictly any norms reported on the present Manual, to follow the onboard indications and apply every precaution in order to avoid any dangerous situation. At the unit receipt it is necessary to make a visual inspection;...
Page 22: Lifting And Handling
RCE - RCE-S - Air Condensers with Axial Fans 4.7 Lifting and handling When unloading the unit, it is strongly recommended that sudden movements are avoided in order to protect internal components; unit can be lifted by using a forklift or, in alternative using belts. Take care that the method of lifting does not damage the side panels or the cover. The weight of some models could be unbalanced, before to start the handling verify the unit stability in order to avoid problems during the operations.
Page 23: Location And Minimum Technical Clearances
RCE - RCE-S - Air Condensers with Axial Fans NO ! 4.8 Location and minimum technical clearances ( RCE 091÷991 - RCE-S 151÷1001 Before lifting the unit we recommend to check the structural integrity of the lifting devices and their secure position. During the overturning of the unit please check that: The lifting ropes are always vertical (A –...
Page 24: Vertical Installation
RCE - RCE-S - Air Condensers with Axial Fans 4.8.1 Horizontal lifting 4.9Vertical installation 4.9.1Vertical installation (RCE 091÷991 - RCE-S 151÷1001) 4.9.2 Vertical installation (RCE 1101÷1702 - RCE-S 1101÷1702) NTAJE HORIZONTAL / / INSTALACJA POZIOMA / VERTIKÁLNÍ INSTALACE NO ! MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev.
Page 25: Horizontal Installation
RCE - RCE-S - Air Condensers with Axial Fans Windbracing 4.10 Horizontal installation 4.10.1Horizontal installation (RCE 091÷991 - RCE-S 151÷1001) MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 26 RCE - RCE-S - Air Condensers with Axial Fans 4.10.2 Horizontal installation (RCE 1101÷1702 - RCE-S 1101÷1702) Overturning NO ! Installation MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 27 RCE - RCE-S - Air Condensers with Axial Fans OPTIONAL MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 28: Location And Minimum Technical Clearances
RCE - RCE-S - Air Condensers with Axial Fans 4.11 Location and minimum technical clearances All models are designed for internal installation; Unit vibration level is very low. It is vital to avoid recirculation from discharge and suction in order to avoid poor performances or even the normal operation stops. For these reason it is necessary to observe the following clearence. The unit doesn’t need a special fundations, as it can simply be placed on the installation site to work.
Page 29 RCE - RCE-S - Air Condensers with Axial Fans 4.11.3 RCE 1101÷1702 - RCE-S 1101÷1702 - Horizontal installation 4.11.4 RCE 1101÷1702 - RCE-S 1101÷1702 -Vertical installation MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 30: Hydraulic Connection
RCE - RCE-S - Air Condensers with Axial Fans 4.12 Hydraulic connections The units are provided dry-air charged (10bar on freon side); Pay attention during the discharge and make it just before connection of the cooling circuits.The units are designed to operate with air cooling, so the internal unit must be connected to the outside condenser unit through copper pipes.
Page 31 RCE - RCE-S - Air Condensers with Axial Fans 4.12.2 Indoor unit and remote condenser layout Indoor unit at a lower level than the remote condenser Indoor unit at a higher level than the remote condenser Indoor unit and remote condenser at the same height MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev.
Page 32 RCE - RCE-S - Air Condensers with Axial Fans • A check valve must be installed at the condenser outlet. Follow the valve manufacturer's instructions for orientation and position. • On vertical ascent sections, there must be siphons, at least every 6 metres, to allow the oil to return to the compressor. •...
Page 33: Connections
RCE - RCE-S - Air Condensers with Axial Fans 4.12.3 Equivalent length of curves, shut-off valves and non-return valve Nominal diameter (mm) 0,50 0,25 0,75 2,10 1,90 0,53 0,26 0,80 2,20 2,00 0,55 0,27 0,85 2,40 2,10 0,60 0,30 0,95 2,70 2,40 0,70...
Page 34: Tightness And Vacuum Charge
RCE - RCE-S - Air Condensers with Axial Fans 4.13.1 Additional oil charge The quantity of oil here metioned in the table, should be added for any syphon and meter of liquid line. Liquid line diameter [mm] Additional charge per line meter (g/m) Additional charge per siphon (g) The syphon must respect the following dimensions Ø...
Page 35 RCE - RCE-S - Air Condensers with Axial Fans If non-condensable gases are not accurately eliminated from the circuit, they can be collected inside the condenser and the liquid receiver. activation. The thermostatic valve, for the presence of high concentration of non-condensable gases in the liquid receiver, could not be suitably fed by just liquid refrigerant, as required, but also by a mixture of refrigerant and non-condensable vapours.
Page 36 RCE - RCE-S - Air Condensers with Axial Fans Do not use compressor for cooling circuit vacuum execution. Check that all the valves are open in order to do not have insulated circuit sections. To obtain a suitable vacuum, use a two-stage pump with suitable features. It is normally considered suitable, a vacuum degree able to grant a humidity content in the refrigerant lower than 100 ppm, at unit start;...
Page 37: Refrigerant Charge Execution
RCE - RCE-S - Air Condensers with Axial Fans 4.15 Refrigerant charge execution Avoid any refrigerant gas release in the environment during the charge operations. If the refrigerant is a mixture of several components, such as R410A, introduce it in the circuit in a liquid state to avoid the components separation.
Page 38 RCE - RCE-S - Air Condensers with Axial Fans If oil separators are used, add the amount of lubricant recommended by the Manufacturer. For refrigerant lines longer than 30 m, charge approx. 0.2 kg of oil every 10 m of additional pipework. In any case, check the correct oil charge by verifying the oil level in the sight glass of the compressor about 30 minutes after running at full capacity.
Page 39: Electric Connections: Safety Preliminary Advices
RCE - RCE-S - Air Condensers with Axial Fans The electrical cabinet is located inside on the front of the unit where are placed also the cooling circuit components. To access please remove the frontal panel. The electric connection has to be performed following the electrical diagram attached to the unit following the local and international norms.
Page 40: Regulation Devices
RCE - RCE-S - Air Condensers with Axial Fans 4.18 Regulation devices The condenser is equipped with a condensing pressure regulator. The regulation system depends on the fans total input current: For a total input current > 3 A Both devices are modulating speed regulators with phase control. The regulation device is pre-set at the factory. Both devices are modulating speed regulators with phase control.
Page 41 RCE - RCE-S - Air Condensers with Axial Fans The speed controller operates on the condenser fans speed so as to maintain the condensing pressure close to the desired value; parameter increases. The speed regulator is composed of an electronic card, installed inside a box having a protection rate of IP55, with the control area on the upper part and the power area on the bottom part.
Page 42 RCE - RCE-S - Air Condensers with Axial Fans Value of the Set-Point in place (mA-Vdc-°-C-bar) Value of the signal at the selected input IN (mA-Vdc-°-C-bar) Upper limit of the extra dB zone to skip Lower limit of the extra dB zone to skip Value of the input signal (mA-Vdc-°-C) for the By-pass of the MAX limit Hysteresis on the Sh value (mA-Vdc-°-C) Value of the input signal (mA-Vdc-°-C) for the By-pass of the MIN limit (Cut-Off point)
Page 43: Functioning Of Optional Bw
RCE - RCE-S - Air Condensers with Axial Fans 4.19 Functioning of optional BW If the condenser is installed at an altitude of less than 3 mts compared to the evaporating unit please contact the Manufacturer 4.19.1 Operation When the external air temperature drops, the condensing pressure decreases, approaching the set value of the valve 4), modulating 3 way valve responding to the receiver pressure.
Page 44 RCE - RCE-S - Air Condensers with Axial Fans Evaporating unit Siphon every 4-6 mt of height difference on the discharge line Remote condenser horizontal discharge line. Liquid receiver Non-return valve on the discharge line Non-return valve on liquid line Self-regulating heating cable Non-return valve on liquid line Thermostatic valve (ON= -10°C) and aluminium electric box...
Page 45: Start Up
RCE - RCE-S - Air Condensers with Axial Fans 5. START UP 5.1 Preliminary checks Before to start up the unit has to be necessary perform some electric, hydraulic and cooling checks. Commissioning operations has to be performed following the previous mentioned indications. Do not switch off the unit (temporary stop) using the main switch;...
Page 46: First Start Up
RCE - RCE-S - Air Condensers with Axial Fans 5.2 First start up The fan is activated automatically when the condensing pressure of the refrigerant delivered by the compressor reaches the pressure regulator set point (pre-set at the factory). Therefore, the condenser operation can only be checked after having started the compressor of the cooling circuit it belongs to.
Page 47: Cleaning
RCE - RCE-S - Air Condensers with Axial Fans 6.3 Cleaning NO ! 6.3.1 Lavaggio con idropulitrice NO ! NO ! NO ! NO ! MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 48: Scheduled Maintenance
RCE - RCE-S - Air Condensers with Axial Fans 6.4 Scheduled maintenance The unit owner has to be sure to make an adequate maintenance following the instructions on the present Manual, based on type, size, age of the unit and in accordance with the regulations and local norms. If are installed leak sensors devices, these must be inspected once a year in order to ensure they work properly.
Page 49: Raee Directive (Ue Members Only)
RCE - RCE-S - Air Condensers with Axial Fans The refrigerant released in sudden way can cause freezing burns if it comes in contact with the skin. disposal. It is forbidden to release the refrigerant in teh environment. 7.3 RAEE Directive (UE members only) The barred bin symbol, on the unit label, indicates the correspondence of the unit to electric and electronic device norm about the garbage.
Page 50: Diagnosis And Troubleshooting
RCE - RCE-S - Air Condensers with Axial Fans 8. DIAGNOSIS AND TROUBLESHOOTING conditions, also shows the type of active problems on the display. The following table describes the most common faults which might occur on the unit and for each of them the most possible causes and solutions are stated.
Page 51 RCE - RCE-S - Air Condensers with Axial Fans MTEC.RCE RCE-S.GB - Use and Maintenance technical manual RCE RCE-S English Rev. 1 11-2021...
Page 52 EMICON AC SPA Technical data shown on this booklet are not binding The reference languages for the whole documentation are Italian and English. The other languages are to be considered only as guidelines.

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