Stulz WDE Series Operating Instructions Manual

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Wall-Air Displacement Evolution

Operating instructions

Air Conditioners

230/1/50 - 400/3+N/50

Index 36B

Issue 08.2018

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Page 1 Wall-Air Displacement Evolution Operating instructions Air Conditioners Index 36B Issue 08.2018 230/1/50 - 400/3+N/50...
Page 2 WD E A B O U T S T U L Z Since it was founded in 1947, the STULZ company has evolved into one of the world’s leading system suppliers of air-conditioning technology. Since 1974 the group has seen continual international expansion of its air condition- ing technology business, specialising in A/C for data cen- tres and telecommunications installations.
Page 3 It's the result of decades of research and design studies, with a fine search of materials and technologies to obtain an high quality unit. The CE mark guarantees that the STULZ products satisfy the requirements of the European Machinery Directive for safety.
Page 5: Table Of Contents
11.10.Voltage Monitoring – VCC .........................52 11.11.Monitoring of phase sequence and phase loss (for 3-phase scroll compressors) – PSCR ..................................52 11.12.Soft start for three-phase compressor – SOFTT ..............52 11.13.Soft start for single-phase compressor – SOFTM ..............55 © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 6 It must not be considered unsuitable merely because it has not been updated following developments in design and manufacturing methods. STULZ reserves the right to update the product and the relevant manual without having to update products and manuals sold previously except under exceptional circumstances.
Page 7: Safety Directions
Consequently both the installer and assigned specialized personnel/operators must read and comply with these directions before proceeding with installation and start-up. The instruction manual must always be available at the site where the system is used. © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 8: Handling Refrigerants
(i.e. gloves, glasses, helmet, shoes), according to the indications of safety manager and applicable regulations. • The unit may only be used to cool according to the Stulz specification. • Before any maintenance operation, read and follow instructions in the corresponding chapter.
Page 9: Safety And Environmental Requirements
Then rinse with water. • Independent conversion and manufacture of replacement parts. • The system may only be converted or modified after consultation with STULZ. Original replacement parts and replacement parts/accessories authorized by STULZ are an aid to safety.
Page 10: Unit Identification
WD E Independent conversion and manufacture of replacement parts The system may only be converted or modified after consultation with STULZ. Original replacement parts and replacement parts/accessories authorized by STULZ are an aid to safety. Unacceptable operating methods The operating safety of the system is only guaranteed when it is used as intended (see this manual, paragraph "3.1.
Page 11 IP protection degree is the protection, from the outdoor environment, of the unit when installed in its normal use. The IP protection degree of STULZ Wall-Air Displacement unit is IPX4 (according to EN 60529, considering the prescriptions of EN 60335), therefore the unit is protected from harmful effects of splashing of water against the enclosure from any direction (see picture below).
Page 12 (2) special models are identified with a Z in the third to last digit of the code. The digits following the Z lose their original meaning and act as the progressive number for special versions. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 13: Intended And Non-Intended Use
Conditioners must not be transported or used in positions that differ from those for which they were designed. STULZ is not responsible for any malfunctions caused by failure to comply with these instructions. The operator bears the entire risk.
Page 14: Technical Data And Drawings
30°C / Internal relative humidity 30% ** Sound pressure level at 2 m obtained from the measured sound power according to the EN ISO 9614-2 on normal condition of use and nominal operating condition. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 15 Maximum operating current (FLA) 12,7 12,7 Evaporator fan in alternating current Nominal voltage / phases V AC/ph 230/1 230/1 230/1 Power consumption* 0,11 0,06 0,24 Operating current (OA)* 0,44 1,49 Maximum operating current (FLA) © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 16 Nominal voltage / phases V AC/ph 230/1 230/1 230/1 230/1 Power consumption* 0,20 0,30 0,46 0,46 Operating current (OA)* 2 x 1,3 2 x 1,3 Maximum operating current (FLA) 2 x 3,1 2 x 3,1 EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 24: Components And Operating Principle
INFORMATION Units with direct current emergency ventilation always require an external direct current power line even when mains power is present. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 25: Mechanical Components
This damper, fitted in units featuring the free cooling option, consists of a metal baffle powered by a servomotor for directing inside and outside air flows. The damper body is made of galvanised sheet metal. © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 26 WD E Condenser fan Condenser Damper block Electric box Air filter Evaporator fan Heaters Compressor Evaporator Condensate water tray WDE size 1 (40-60-80) EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 27 WD E Condenser fan Condenser Damper block Electric box Air filter Evaporator fan Thermostatic expansion valve Evaporator Compressor Condensate water tray WDE size 2 (A0-A2-A4-A6) © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 28: Cooling Components
The circuit components are connected together by copper piping, appropriately welded to ensure a greater seal. Schrader service valves are fitted internally on the compressor intake and return lines. Refrigerant The refrigerant that is used is R407C (HFC). Optional: R134a (HFC). EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 29 (designed for use in non-acid and non-saline environments only). Surface has hydrophilic treatment. For optimal protection against salt spray, see option "Protective treatment on condenser and evaporator – TREATW". © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 30: Motors
Evaporator fans in both DC and AC version are EC (electronic commutation) type, except DC fans of WDE40. Free cooling damper servomotor Electric servomotor with built-in travel stop switch and overload protection. Protection degree: IP54 Protection class: III EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 31: Control, Monitoring And Safety Components
STULZ engineering division department. STULZ conditioners come with a set of devices designed to ensure proper operation. Tripping by any one of these automatic safety devices is a sign of a malfunction and it is absolutely necessary to eliminate the cause.
Page 32 Only one unit at a time can be displayed, selecting it via the keypad itself. The C2020 controller can also be connected to a remote monitoring / supervision system with a RS485 serial line and ordering the necessary serial interface ACTSERC1010 (cable not supplied). EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 33: Unpacking And Inspection
5. Unpacking and inspection INSPECTION STULZ products are delivered ex-works. All units have been individually inspected in all their components and been carefully packaged before the delivery. Immediately inspect the unit upon receipt of the goods.
Page 34 With ex-works delivery conditions, carrier is the sole responsible for any damage caused during transport. STULZ is not responsible for damages to the goods caused by the carrier, but it will do everything in its power to assist clients on those situations.
Page 35 • Remove packing without damaging air conditioner: remove top air bag and external film. • Recover any document or component inside the packing. • Keep original packing (pallet and protections) for future shipments. © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 36: Installation
• At worst, the intervention of anti-freeze protection which stops compressor. It is important also to prevent hot air expelled by the condenser fan from being even partially sucked back in. This would cause continuous stoppages, commanded by the pressure switches, with: EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 37: Mechanical Installation
Then, fix the unit to the wall through its lateral brackets via suitable screws. 6. When also the electric installation is completed, put the return and supply grilles / diffuser (accessories) in place. © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 38: Electric Connections
If this temperature is noticeably higher than the external temperature, the compressors is working correctly. Otherwise, the compressor is turning in the wrong direction and the phase sequence must be changed. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 40: Start-Up
If there are bubbles this may have been caused by a leak and loss of refrigerant. Check the circuit for leaks. Repair all leaks and refill the circuit with R407C refrigerant as described in paragraph "8.4. Refrigerant circuit". EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 41: Maintenance
This maintenance, however, must be performed at the prescribed maintenance intervals. Failure to perform due maintenance both decreases the working life and efficiency of the unit and also invalidates guarantee coverage. © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 42: Preventive Maintenance Schedule
A differential pressure switch monitors air intake filter. As soon as pressure loss exceeds an adjustable value, a dirty filter alarm is enabled by the electronic controller. In this case, filter replacement is necessary. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 43: Refrigerant Circuit
• Extract the air filter. ATTENTION Spare filters must have filtering medium with the same thickness and density as the original one. A set of spare filters can be ordered to your local STULZ service partner. Air filter extraction 8.4.
Page 44: General Appliance Cleaning Procedures
Use a vacuum cleaner to remove dust. Inner parts must be cleaned with a liquid detergent and air at a pressure not higher than 4 bar and with the unit suitably connected to ground. Check also that water pipes are firm: vibrations might cause leakages. Finally, check pipe insulation. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 45: Troubleshooting
(controller, fan, free cooling damper servomotor) Controller faulty Contact Stulz service Controller is working, Faults blocking the unit Look for alarms on the display. Contact Stulz service but the rest of the unit Controller faulty Contact Stulz service is not working...
Page 46: Uninstalling And Disposal Of The Unit
Move the unit as described in paragraph “lifting and transport”, with a lifting device of suitable capacity. The following are the instructions for proper disposal of the unit during the various phases of its life. For further clarification or additional information, please contact info@stulz.it. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 47 • Plastic Parts - Plastic parts that are important in terms of weight are the following: Identified Substance CAS Number acrylonitrile butadiene styrene terpolymer 9003-56-9 polystyrene homopolymer 9003-53-6 polycarbonatefrom bisphenol A 103598-77-2 © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 48: Options
30°C / Internal relative humidity 30% ** Sound pressure level at 2 m obtained from the measured sound power according to the EN ISO 9614-2 on normal condition of use and nominal operating condition. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 49 Maximum operating current (FLA) 12,7 12,7 Evaporator fan in alternating current Nominal voltage / phases V AC/ph 230/1 230/1 230/1 Power consumption* 0,11 0,06 0,24 Operating current (OA)* 0,44 1,49 Maximum operating current (FLA) © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 50 Nominal voltage / phases V AC/ph 230/1 230/1 230/1 230/1 Power consumption* 0,20 0,30 0,46 0,46 Operating current (OA)* 2 x 1,3 2 x 1,3 Maximum operating current (FLA) 2 x 3,1 2 x 3,1 EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 51: Electric Reheat - Rsc
ATTENTION: In case of main switch, the power supply cables between the connection terminals of the customer and the main switch are always under voltage also if the main switch is open. The supply cables are identified with the symbol below (high voltage). © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 52: Wib1000 / Wib1485
Setting of this component is made in factory and shown in the wiring diagram. Before altering it, contact STULZ service. INFORMATION With SOFTT option, the working limit of the unit is 45°C external temperature. EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 53 The auxiliary relay #1 is programmable via dipswitch #14, for normal/up-to- speed indication. A side-mounted additional auxiliary relay #2 can be added as an accessory and programmed via dipswitch #15 for normal/up-to-speed indication. © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 54 25 % 35 % 65 % Overload class selection DIP switch number Trip class Overload reset Auxiliary relay #1 DIP switch number DIP switch number Reset Setting Current limit Normal Soft start Up-to-speed EN/36B/08.2018 © STULZ SpA – all rights reserved...
Page 55: Soft Start For Single-Phase Compressor - Softm
Technical data Power supply 230 V AC +10% / -15% / 50/60Hz Nominal operating current 25A / 32A max. / AC-53a; AC-58a Protection class according to IEC 529 IP 20 © STULZ SpA . – all rights reserved EN/36B/08.2018...
Page 57 FRANCE NETHERLANDS Tel. +34 (91) 517 83 20 Tel. +43 (1) 615 99 81-0 STULZ France S. A. R. L. STULZ GROEP B. V. Fax +34 (91) 517 83 21 Fax +43 (1) 616 02 30 Tel. +33 (1) 34 80 47 70 Tel.

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Wde40 Wde60 Wde80 Wdea0 Wdea2 Wdea4 ... Show all

Stulz WDE Series Operating Instructions Manual

1 Safety Directions

2 Unit Identification

3 Technical Data and Drawings

4 Components and Operating Principle

5 Unpacking and Inspection

6 Installation

7 Start-Up

8 Maintenance

9 Troubleshooting

10 Uninstalling and Disposal of the Unit

11 Options

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