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Summary of Contents for Condair AT+
- Page 1 CONDAIR AT+ Reverse osmosis unit ASSEMBLY AND OPERATING INSTRUCTIONS Condair AT+ reverse osmosis unit 03.01.2025 Air humidification, dehumidification and evaporative cooling...
- Page 2 Liability Condair GmbH shall not be liable for any damage caused by faulty installation, improper operation, or by the use of components or equipment which are not approved by Condair AG.
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Page 3: Table Of Contents
Table of contents General Safety Instructions Explanation of symbols and instructions Operator obligations Personnel obligations Training of personnel Intended use Hazards when handling the equipment Protective devices and safety measures to avert hazards 1.7.1 Protective devices 1.7.2 Informational safety measures Safety instructions for maintenance work Disposal of system components and operating materials 1.10... - Page 4 Commissioning and Decommissioning Commissioning 6.1.1 Qualification of commissioning personnel 6.1.2 Rinsing out the preservative 6.1.3 Establishing automatic mode 6.1.4 Adjustment of permeate output and yield Decommissioning Control system Main display, main menu 7.1.1 Main display (Main) 7.1.2 Context-sensitive menu elements 7.1.3 Context-sensitive operating elements 7.1.4...
- Page 5 Preservation 10.1 General instructions 10.2 Preparation for preservation 10.2.1 Preservation options 10.2.2 Required material 10.2.3 Connecting the preservation container 10.2.3.1 Systems without special flushing connections 10.2.3.2 Systems with special flushing connections 10.2.4 Preparing the preservative solution 10.3 Carrying out the conservation 10.4 System diagram for preservation Circuit diagram...
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Page 6: General Safety Instructions
General Safety Instructions Explanation of symbols and instructions These operating instructions contain important specifications on the safe operation of the system. These operating instructions, particularly the chapter on safety instructions, must be observed by all those who carry out work on the system. This applies to the installation company as well as the system operator. -
Page 7: Personnel Obligations
Personnel obligations Prior to commencing work, all individuals who are commissioned to work on the system or carry out such work independently undertake to: read the chapter on safety and the warnings in these operating instructions and confirm by their signature that they have understood them. -
Page 8: Protective Devices And Safety Measures To Avert Hazards
Electric shock Work on the electrical supply may only be carried out by a qualified electrician. Check the system’s electrical equipment on a regular basis. Any loose connections or scorched cables must be removed immediately. The control cabinet must be kept locked at all times. Access is only allowed to authorised personnel. -
Page 9: Safety Instructions For Maintenance Work
Safety instructions for maintenance work The operator must ensure that all maintenance, inspection and installation work is carried out by authorised and qualified specialist personnel who have acquired the necessary infor- mation by studying the operating instructions. Prior to all repair and maintenance work, the system must be switched off and secured against unintentional start-up. -
Page 10: Safety Instructions For Storage
1.12 Safety instructions for storage CAUTION! The reverse osmosis unit is protected by a preservative against microbial contamination and against risk of frost down to -10°C. At room temperature (< 25°C), this preservative must be purged and replaced within 6 months at the latest. At higher temperatures, the protection period is correspondingly shorter (3 months at 30°C). -
Page 11: Principles Of Reverse Osmosis Units
Principles of Reverse Osmosis Units Principle of reverse osmosis Osmosis is a process on which almost all natural metabolic processes are based. If you sep- arate two solutions of different concentrations in a system through a semi-permeable mem- brane, the more concentrated solution always tends to dilute. This process (osmosis) continues until osmotic equilibrium is reached. -
Page 12: Calculation Equations
Calculation equations The permeate output, the reject output and the permeate conductivity are determined by reading the corresponding measuring equipment on the system. If no indicating instruments (e.g. varia- ble area flow meter) are present, the permeate output and the reject output are determined by manual volumetric measurement. -
Page 13: Conductivity Of First Permeate
Temperature T in °C Information Correction factor 1.30 1.28 1.25 1.21 If the actual permeate output exceeds 1.18 the maximum permissible permeate output, it must be reduced by lowering 1.15 the working pressure! 1.12 1.09 1.06 1.03 1.00 Design temperature Nominal output=100% 0.96 0.92... -
Page 14: Transport And Storage
Transport and Storage Transport to the customer CAUTION! All units must be secured against slipping and falling over during transport. Allowing the unit to tip out of its fixed position is not permitted. If system parts are protruding from the base area of the pallet, such protruding parts must be protected against damage while other parts/units are being loaded. -
Page 15: Technical Data / Product Description
Technical data / product description Technical data Typ AT+ Quality of Soft water 0˚dH the feed water Permeate output 1.000 1.250 at 2 bar Permeate output 1.000 at 4 bar Yield, max. Raw water pressu- re min./max. Water temperature °C 5/25 min./max. -
Page 16: Application Limits
Application limits The membranes are wear parts in the longer term. Their service life depends on the feed wa- ter quality and the operating conditions. In order to achieve a projected membrane service life of 3 years, the reverse osmosis units should be operated with softened water or with hard wa- ter depending on the unit type, in each case in the same quality as drinking water according to the German Drinking Water Ordinance and according to the following additional specifications: Parameter... -
Page 17: Product Description
Product description 4.3.1 Function The RO feed water reaches the frequency-controlled HP pump via a residual hardness monitor (optional accessory, only when using softened water) and a protective cartridge filter (grade of filtration 5 µm). This pump conveys the water at high pressure (level depends on the permeate flow being drawn and the desired permeate pressure) through the semi-permeable membranes. -
Page 18: Structure
4.3.2 Structure The following RI diagram shows the structure of an AT+ reverse osmosis system BY OTHERS BY OTHERS RAW WATER MSR point list / Hydraulic system components Actuators PI 01 Local display of the inlet pressure Shut-off valve feed water, ma- nually operated PI 02 Local display of the pump pressure... -
Page 19: Installation And Assembly
Installation and Assembly Installation 5.1.1 Installation site requirements The space required for the unit is specified in the dimensions provided in the technical data. In addition, there should be 0.8 m of space in front of the unit to allow access for operation and 1.0 m of space to the side for maintenance. -
Page 20: Water Connections
Water connections 5.2.1 Required qualification of assembly personnel NOTE The water connection must be carried out by trained specialist personnel only. General directives (DIN, DVGW, SVGW, ÖKGW) and local installation regulations must be observed when installingthe unit. 5.2.2 Establishing the water connections Feed water ... -
Page 21: Electrical Connection
Electrical connection 5.3.1 Required qualification of assembly personnel DANGER! The electrical installation must be carried out by a qualified electrician in compliance with the installation regulations VDE, EVU, factory standard, etc. and in accordance with the applicable country-specific regulations. 5.3.2 Making the electrical connections DANGER! Before connecting the system to the power supply, ensure that the corresponding main... -
Page 22: Electrical Connection Diagram
5.3.4 Electrical connection diagram Kl. Nr. Usage Des. Function Phase, 230V AC supply Neutral conductor, supply Protective conductor Protective conductor Protective conductor UO high-pressure pump Neutral conductor, consumer Relay, normally open contact, supply switching 230V AC Inlet solenoid valve Neutral conductor, consumer Relay, normally closed contact, supply-switching 230V AC Relay, normally open contact,... - Page 23 Protectiv UO-Pump Inlet valve Permeate Collective conductor 230 VAC 230 VAC valve alarm for consumers with 230 VAC Forced stop Tank full, or permeate pressure, max. Pressure switch input Electrical Conductivity sensor, EC Tank level or permeate pressure Temperatur Sensor Supply 230 VAC Installation and Assembly...
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Page 24: Cable Types
5.3.5 Cable types The use of the following cable types is recommended: Designation Cable type Alternative Power supply NYM-J 3 x 1,5 H05VV-F3 G1,5 UO High-pressure pump NYSLYO 3 x 1 H05VV-F3 G1 Inlet solenoid valve NYSLYO 4 x 1 H05VV-F3 G1 Permeate solenoid valve NYSLYO 4 x 1... -
Page 25: Commissioning And Decommissioning
Commissioning and Decommissioning Commissioning 6.1.1 Qualification of commissioning personnel CAUTION! The unit must be commissioned by qualified specialist personnel. NOTE Before commissioning the unit, all screw connections must be tightened. 6.1.2 Rinsing out the preservative WARNING! The preservative solution contains 1.5% sodium bisulphite and 20% glycerine. The rinsed preservative solution is discharged into the sewage system in accordance with the local discharge regulations. -
Page 26: Establishing Automatic Mode
6.1.3 Establishing automatic mode After rinsing out the preservative, automatic mode is established in the submenu operating mode submenu on the control unit by selecting „Automatic operating mode“. 6.1.4 Adjustment of permeate output and yield With AT+ systems, it is not necessary to adjust the permeate output and yield, as the volume flows are brought into the correct ratio by self-regulating orifices. -
Page 27: Control System
Control system Main display, main menu 7.1.1 Main display (Main) Type of displayed Main menu menu item Operating mode Operating mode Settings Calibration Data transfer Context-sensitive operating elements DOWN ENTER Button Button Button Button 7.1.2 Context-sensitive menu elements The display shows elements that are related to the current display content: Main menu or submenu thereof Input for logical parameter, setting with the UP or DOWN Buttons Input for numerical parameters, set with the UP or DOWN Buttons,... -
Page 28: Buttons
Call up the main menu with the Enter Button Display messages from the scrolling display with the ESC Button 7.1.4 Buttons The control panel has the following four buttons: In the main menu, a submenu can be exited with the ESC Button without sa ving changes or the main menu can be exited completely. - Page 29 Control system...
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Page 30: Settings
7.2.2 Settings 7.2.2.1 Retry-time Main menu Settings Input Retry time After input valve K1 opens, a short delay time (factory-set to 60 s) is active during which the pressure must build up. If no pressure has built up after this delay, input valve K1 is closed. After a set retry-time* has elapsed (factory setting 120 s), input valve K1 is opened again and checked once more to see whether pressure has built up. -
Page 31: Rolling Display
Select minimum limit values for a Min(Warn) warning or for a Min(Alarm) alarm and maximum limit values for a Max(Warn) warning or for a Max(Alarm) alarm in the event that these conductivity values are exceeded or not reached. A delay delay, a hysteresis hyst. and a priority prio. can also be defined separately for each message (warning or alarm). - Page 32 Control system...
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Page 33: Displays During Break Flushing
7.3.2 Displays during break flushing The design of the tank (with or without overflow) determines whether the P-01 UO pump may be switched on during pause flushing (i.e. intermittent operation during production breaks due to a full tank). If the tank has an overflow, the HP pump P-01 is switched on and the ad ditionally produced permeate is drained via the overflow. -
Page 34: Disrupted Operations
7.3.3 Disrupted operations 7.3.3.1 Coloring of the display In the event of a warning, the background of the display appears completely orange. Call up the cause of the warning with the ESC button under the magnifying glass symbol! In the event of an alarm, the background of the display appears completely in red. Call up the cause of the warning with the ESC button under the magnifying glass symbol! 7.3.3.2 Possible warnings... -
Page 35: Uninterrupted Operation
7.3.3 3 Uninterrupted operation HINT: Depending on the selection of the „Reaction system“ parameter, production is stopped or not in the event of an alarm! Below you will find an overview of all possible alarms: HINT Alarm acknowledgement if the cause of the alarm persists. If an alarm whose cause has not been eliminated is acknowledged, the alarm appears again when the delay time assigned to the alarm cause has expired. - Page 36 Control system...
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Page 39: Faults And Fault Elimination
Faults and fault elimination General instructions The use of high-quality individual components and the built-in safety and monitoring equipment ensure a very high level of operational readiness. Sollte dennoch eine Betriebsstörung auftreten, kann der Fehler anhand der nachfolgend aufgeführten Störungstabelle leicht erkannt und die Ursache beseitigt werden. If serious faults occur, please contact the manufacturer (see rating plate). - Page 40 Fault/message Possible causes Troubleshooting Display unlit Mains supply Establish mains supply interrupted Fuse 230VAC/6.3 AT Fuse in question defective Replace Control defective Replace control unit Forced stop alarm display Residual hardness sen- Check Soft water quality sor triggered (if present) ...
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Page 41: Inspection And Maintenance
Inspection and Maintenance Inspection and maintenance work 9.1.1 Safety instructions CAUTION! The operator must ensure that all inspection, maintenance, and assembly work is carried out by authorised, qualified specialist personnel. Prior to all repair and maintenance work, the unit must be shut down and secured against unintentional start-up. -
Page 42: Logging The Operating Parameters
Logging the operating parameters 9.2.1 List of parameters to be logged The following parameters must be checked weekly and entered in the operations log for reverse osmosis units: Parameter Measuring point/Comments Operating hours of the UO system Control unit display/menu Residual hardness in the feed water Check with hardness test kit in the feed water EC from feed water... -
Page 43: Operating Protocol For Reverse Osmosis Systems
9.2.2 Operating protocol for reverse osmosis systems Customer: __________________________________________________________________ System type: ________________________________________________________________ Order no.: __________________________________________________________________ Commissioning on: ___________________________________________________________ During Date Date Date Date Date Measured variable Unit commis- sioning Operating hours of the UO system Residual hardness in °d the feed water EC from feed water µS/cm Temperature of the... -
Page 44: Maintenance
Maintenance NOTE Maintenance work for the system must be carried out globally after 4000 operating hours (a maintenance message is issued) and separately for each system component as required, at the latest in accordance with the specified maintenance intervals or described situations (co- lumn „At the latest after Operating time or described. -
Page 45: Operating Protocol For Reverse Osmosis Systems
9.3.2 Operating protocol for reverse osmosis systems Object Systems, series/object no. Order Original order Date of use Please enter date! Service technician General review Even surface available Inlet water quality checked Inlet properly connected Pump rotation direction checked Permeate line properly connected Reject line properly connected Permeate quantity and reject quantity set according to specification Pump pressure and concentrate pressure checked... - Page 46 Current measured values Unit Real value Total hardness before UO °dH Conductivity μS/cm Temperature °C Pressure fine filter input Pressure fine filter output Permeate conductivity μS/cm Measured values Pressure pump Pressure concentrate Permeate pressure Permeate quantity Concentrate quantity Volume flow feed Calculated values Yield Switching pressure On...
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Page 47: Preservation
Preservation 10.1 General instructions NOTE If the system is shut down for more than 30 days, the system must be preserved. If the system is out of operation for a longer period: The preservation must be rinsed out after 3 months at the latest and replaced if necessary. -
Page 48: Systems With Special Flushing Connections
Separate the permeate and reject lines on the UO system Establish a hose connection between the preservation container and the reject outlet of the UO system Establish a hose connection between the preservation tank and the permeate outlet of ... -
Page 49: Carrying Out The Conservation
Composition of the preservative solution Permeate output of Soft water Sodium bisul- Sodium Glycerine the system template phite powder bicarbonate (l/h) (kg) (kg) Conc. only chemical 86,5% Concentration Chemical in preserva- 1,5% w/w 2,5% w/w 20% v/v tive solution 20-80 0,20 0,32 100-500... -
Page 50: System Diagram For Preservation
WARNING! The system runs without any safety devices. Avoid dry running of the HP pump. Allow the preservative solution to circulate for 10 minutes Switch off the control unit Close the drain valve on the preservation container Set the 3-way ball valves to the „Operation“... -
Page 51: Circuit Diagram
Circuit diagram 11.1 Switch box See below for a picture of the terminal strips in the control box (230 V and 400 V). Mains High pressure pump Inlet valve Permeate valve NC Permeate valve ND Alarm signal Limitron Permeate pressure switch Pressure switch input Not used EC sensor... -
Page 52: Dimensional Drawings
11.2 Dimensional drawings Condair AT+80 Permeate valves Connections: A=Inlet (PVC Ø25mm) B=Permeate (PVC Ø20mm) C=Waste water (PVC Ø20mm) Electrical connection: 230V. 50Hz Top view Front view Circuit diagram... - Page 53 Condair AT+15 Permeate valves Connections: A=Inlet (PVC Ø25mm) B=Permeate (PVC Ø20mm) C=Waste water (PVC Ø20mm) Electrical connection: 230V. 50Hz Top view Front view Circuit diagram...
- Page 54 Condair AT+30 Permeate valves Connections: A=Inlet (PVC Ø25mm) B=Permeate (PVC Ø20mm) C=Waste water (PVC Ø20mm) Electrical connection: 3x400V. 50Hz. Top view Front view Circuit diagram...
- Page 55 Condair AT+55 Permeate valves Connections: A=Inlet (PVC Ø25mm) B=Permeate (PVC Ø20mm) C=Waste water (PVC Ø20mm) Electrical connection: 3x400V. 50Hz. Top view Front view Circuit diagram...
- Page 56 Condair AT+80 Permeate valves Connections: A=Inlet (PVC Ø25mm) B=Permeate (PVC Ø20mm) C=Waste water (PVC Ø20mm) Electrical connection: 3x400V. 50Hz. Top view Front view Circuit diagram...
- Page 57 Condair AT+100 Permeate valves Connections: A=Inlet (PVC Ø25mm) B=Permeate (PVC Ø20mm) C=Waste water (PVC Ø20mm) Electrical connection: 3x400V. 50Hz. Top view Front view Circuit diagram...
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Page 58: Attachment
Attachment 12.1 Assembly structure (diagram) Fine filter 1“ System separator Raw water 1“; 3-6 bar Waste water Test valve Waste water Waste water 13 mm Softening system Soft 20-400 1“ Connections 230V Socket Hardness monitoring Limitron (option) Already mounted on AT+ Reverse Osmosis System AT+ Permeate... -
Page 59: Detailed Wiring Diagram
12.2 Detailed Wiring Diagram Attachment... -
Page 60: Main Current / Control Current
12.3 Main current / control current 4.18 4.13 Attachment... - Page 61 12.4 Name Con- External X0 Bridge Page/ nection lower part Path Power supply 230VAC/400VAC 50/60Hz lnom: 22A PE CLAMP = EARTH 12.5 Name Con- External X2 Bridge Page/ nection lower part Path Microprocessor power supply 4.11 4.11 Operation R.O. Pump 4.13 4.14 PE CLAMP = EARTH...
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Page 62: List Of Materials
12.6 List of materials Attachment... - Page 63 Notes...
- Page 64 © Condair GmbH 03/2025 MASC Errors and technical modifications reserved. The content is correct at the time of going to press. If you have any questions regarding this documentation, please contact the head office in Germany. Condair GmbH Regional Centre South...
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