Stulz CyberAir Mini CW Original Instructions Manual

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CyberAir Mini CW

Original instructions

Precision Air Conditioning Units

400V/50Hz/3Ph/N/PE

Index G23

Issue 6-2021

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Page 1 CyberAir Mini CW Original instructions Precision Air Conditioning Units Index G23 400V/50Hz/3Ph/N/PE Issue 6-2021...
Page 2 Cy b e r a i r m i n i C W o r i g i n a l i n s t r u C t i o n s 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.
Page 3 Dear customer, thank you for having chosen the CyberAir Mini CW from STULZ. CyberAir Mini is an energy-efficient and noise-optimized unit series for small to medium heat loads. These modern and maintenance-friendly units require only a small footprint and can be easily installed in existing rooms thanks to their compact dimensions.
Page 5: Table Of Contents
7.4 Water circuit ..........................41 7.5 Unit housing ..........................41 8. Malfunction ...................... 42 9. Dismantling and disposal ................43 10. Contents of the CE Declaration of Conformity ..........44 11. Options Subject to technical modifications. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 6: Safety
They must be permanently available at the place where the system is used. danger • Works have to be carried out by competent staff only. • Safety devices may not be bypassed. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 7: Duties Of The Operator
The system may only be converted or modified after consultation with STULZ. Original replacement parts and replacement parts/accessories authorised by STULZ are an aid to safety.
Page 8: Transport / Storage
Cy b e r a i r m i n i C W o r i g i n a l i n S T r U C T i o n S 2. transport / Storage 2.1 delivery of units Stulz A/C units are mounted on pallets and packed several times in plastic film. construction of protective covering: the following information can be found...
Page 9: Storage
• the storage point must not be exposed to direct sunlight. Observe the storage conditions in the chapter “Application limits“. • store the unit packaged to avoid the risk of corrosion. • make sure that the water connections are provided with protective hoods. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 10: Description
Page code EN/06.2021/G23 Date of issue Index number month/year Language: Manufacturing base: EN = English G = Germany DE = German C = China FR = french I = Italy ES = spanish EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 11: Intended Use
A humidification can be obtained by using the optional humidifier. Air filter The A/C unit control is effected by the on board controller. Electric box Heat exchanger Chilled water control valve Downflow unit © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 12: Technical Data
Upper limit: 60 % r. h. and 15 °C dew point different from the standard voltage (400V/50 Hz/3Ph). In this case, see the technical data by the help of the „Stulz Storage conditions: Select“ planning tool.
Page 13 µS/cm 10 - 500 Electric conductivity with inhibitors µS/cm <2200 cfu - colony forming units *aluminium or titanium. All data refer exclusively to the A/C unit. noTICe • Check the water quality regularly. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 14: Performance Data - Ccd
Sound pressure level Schalldruckpegel Cabinet size Baugröße Weight Leergewicht For electrical data, (fan power consumption) see e-data sheet. The electrical power consumption of the fans must be added to the room load. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 18: Installation
Downflowunit The A/C unit must be accessible from the front. Upflowunit The A/C unit must be accessible from the front and requi- res space on the left side for the supply connections. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 20: Positioning The Unit
• drive the unit by the mounting aids to the installation site. • drop the unit, loosen the belts and pull away the mounting aids. Pallet height 2x metal angles A/C unit transport with mounting aids Mounting aids EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 21: Opening The A/C Unit
• Pull it towards you with a jerk. • The lower side can then be easily removed. noTICe Place the male triangular wrench in a visible location in the immediate vicinity of the A/C unit. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 22: Water Piping Connection
• screw the lines of the external system to the lines of the unit respecting the designation at the unit (inlet/ outlet). • insulate the water pipes with the diffusion tight insulating material, to prevent the introduction of ambient air heat and the formation of condensate at the pipes. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 23 Condensate drain Ø inside All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the raised floor into the A/C unit. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 24 Condensate drain Ø inside All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the raised floor into the A/C unit. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 25 Condensate drain Ø inside All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the raised floor into the A/C unit. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 26 To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the raised Chilled water line floor into the A/C unit. Male thread inch 1 1/4 Condensate drain Ø inside EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 27 Male thread inch All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the left side panel into the A/C unit. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 28 All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the left side panel into the A/C unit. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 29 1 1/4 All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the left side panel into the A/C unit. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 30 1 1/4 All dimensions in mm. To connect the piping notice the labels on the pipe ends. • Route the external chilled water lines through the left side panel into the A/C unit. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 31: Condensate Drain Connection
In upflow units the condensate connection is designed in the form of a plastic hose nozzle with an external diameter of 22 mm. • Connect the condensate water drains to the local waste water system. InForMATIon Comply with the regulations of the local water supply authority. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 32: Electrical Connection
Do not touch electronical components, without taking care of protective ESD measures. Electronical components: - Controller (1) - Humidifier board (option) (2) EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 33 Connection of control lines (optional) If the A/C unit shall be connected to other Stulz units by the pLAN bus, to a BMS or contains opional exten- sions as dampers, you must route control lines and connect them in the electric box of the A/C unit.
Page 35: Commissioning
-26,0°C until -32,4°C It is difficult to produce a homogeneous glycol mixture. You can purchase ready-made glycol mixtures. • calculate the water content of the water circuit and the required amount of glycol. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 36: Control Of The Electric Box
• check whether all power switches and control-circuit fuses in the electric box are switched off. • retighten all screw connections in the electric box. • verify the smooth function of the contactors. electric box Power switches Control circuit fuses Main switch Humidifier board (optional) EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 37 • A/C units which only have a “E² controller small“ or “E² controller medium“ and are connected with an A/C unit with Touch display, can be operated by the Touch display. • start the A/C unit by pressing the Start/Stop-key on the Touch display. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 38: Maintenance
Only use the spare parts listed in the spare parts list. The spare parts list is part of the unit docu- mentation enclosed with the unit. 7.2 Maintenance intervals Maintenance interval Component quarterly half-yearly yearly Air circuit Heat exchanger Air filter Water circuit Tightness Unit housing Electrical box Unit interior EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 39: Air Circuit
When you re-install the filter elements after the exchange, take care that the side with the coloured mark (dirt side) is turned away from the heat exchanger. Filter position in downflow unit © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 40 • Check the operation current. An increased operation current indicates a winding short circuit in the fan motor. WARning Risk of injury by burns and rotation The electronics housing of the fan motor can get hot. The fans have an operation delay after the unit is stopped ! EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 41: Water Circuit
Vibrations of pipes and circuit components can result in leaks. • check the pipes for a tight seat. Condensing air humidity on cold water pipes means a loss of cooling capacity. • check the insulation of the water piping. © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 42: Malfunction
3. sensor defective. Replace defective sensor. Depending on the option configured in the controller further alarm messages exist. # stands for a number in case of several components of the same kind. EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 43: Dismantling And Disposal
• dispose of the A/C unit in accordance with the disposal and safety regulations applicable on site. We recommend a recycling company for this. The unit basically contains the raw materials aluminium (heat exchanger), copper (pipelines, wiring), and iron (panelling). © STULZ GmbH – all rights reserved EN/06.2021/G23...
Page 44: Contents Of The Ce Declaration Of Conformity
BGV A3 EN ISO 12100 EC directive for low voltage 2014/35/EU EN ISO 13857 EC EMC directive 2014/30/EU EN 60204 -1 RoHS directive 2012/50/EU EN 61000-6-2 EC pressure equipment directive 2014/68/EU EN 61000-6-4 EN/06.2021/G23 © STULZ GmbH – all rights reserved...
Page 45 With the ECCM/S control unit either On/Off control or proportional control can be employed for steam production. Below a minimum controllable steam output, proportional control will work in two-point operation (on/off control). X = steam capacity in % Y = Output signal controller © STULZ GmbH – all rights reserved EN/04.2021...
Page 46 A reverse osmosis plant (ROP) can be used to soften water. The water from the ROP has a low conductivity and must be mixed with raw water for evaporation. EN/04.2021 © STULZ GmbH – all rights reserved...
Page 47 F3/Q3 MCB humidifier Potentiometer humidity value Red LED: Error Main contactor heating voltage Yellow LED: Service, Warning Inlet valve Green LED: Steam production Drain valve Jumper block 1 Current sensor Jumper block 2 © STULZ GmbH – all rights reserved EN/04.2021...
Page 48 (red LED lights and the error switch on the control unit ECCM/S is activated). However, the unit is switched off ECCM/S is activated). ** after 220 minutes filling time exceeding. Z, M, n no function (spare) ** Factory settings EN/04.2021 © STULZ GmbH – all rights reserved...
Page 49 Legend: 1 Level sensor 2 Steam outlet connector ø22.5 - 30 mm 3 Heating electrodes 4 Inlet valve 5 Outlet valve 6 Drain connector ø30 mm 7 Water supply connector G 3/4“ © STULZ GmbH – all rights reserved EN/04.2021...
Page 50 • press key shortly: opens and closes the drain valve (manual draining). Note: the drain valve is automatically closed after 10 minutes. • press key for a extended period of time: activating the info mode EN/04.2021 © STULZ GmbH – all rights reserved...
Page 51 After switching on the control unit ECCM/S carries out a system test, during which all the LEDs on the control unit light up in sequence. If, after the system test (or during operation) the yellow or red LED lights up, an error has occurred (see information in chapter 11.1.4 “Fault elimination”). © STULZ GmbH – all rights reserved EN/04.2021...
Page 52 3. Start manual draining and wait until the steam cylinder is empty (approx. 5-10 minutes). 4. Disconnect the steam humidifier from the mains: Switch off the humidifier power switch in the electric box. EN/04.2021 © STULZ GmbH – all rights reserved...
Page 53 After completing maintenance work, the maintenance indication (yellow LED) must be reset as follows: • De-energize the humidifier board. • Press drain key and keep pressed. • Switch on humidifier board. • Keep drain key pressed until the system test is completed (approx. 10 seconds). © STULZ GmbH – all rights reserved EN/04.2021...
Page 54 Inspect installation/control system. too high too high Faulty drain valve/coil. Replace drain valve/coil. Steam cylinder outlet obstructed. Clean/replace steam cylinder. Water conductivity too high for type of Select correct steam cylinder type. steam cylinder. EN/04.2021 © STULZ GmbH – all rights reserved...
Page 55 2. Replace fine-wire fuse (see figure below) with a fuse of the given type with the specified nominal current rating. CAuTION It is not permitted to use repaired fuses or to short-circuit the fuse holder. © STULZ GmbH – all rights reserved EN/04.2021...
Page 56 11.1.5 Maintenance You find a detailed description of the maintenance procedures in chapter 5 of the humidifier service manu- al. This manual is available on the website www.stulz.com in the e-Stulz area under “Products->Condenser/ Humidifier“ as a pdf document. Here you can only see a diagram, which shows the average life cycle of a steam cylinder in dependance of the runtime and the total hardness.
Page 57 The water supply of the HW reheat can be controlled via an electrically actuated HW valve as an option. You can set the control parameters of the HW valve on the controller. • Refer to the operating instructions of the controller. © STULZ GmbH – all rights reserved EN/04.2021...
Page 58 A heating alarm can only be displayed for electrical reheat by the controller. When the limit temperature is reached, an overheating element triggers a heating alarm. The controller then switches off the reheat. The limit temperature depends on the unit size. Baugröße Cabinet size Begrenzungstemperatur Limit temperature 60 °C 70 °C Toleranz Tolerance ±5 K ±5 K EN/04.2021 © STULZ GmbH – all rights reserved...
Page 59 Cabinet size 1135 1015 notiCe • Connect each of the unit base versions with the A/C unit by 4x M10 screws! • Also ensure vibration decoupling to the floor e.g. by Mafund strips. © STULZ GmbH – all rights reserved EN/06.2021...
Page 60 The standard grilles are equipped with horizontal fins which can be adjusted to conduct the air which is blown out. Unit base with flexible connection Unit base with damper Baugröße Cabinet size 1140 Unit base with damper and flexible connection EN/06.2021 © STULZ GmbH – all rights reserved...
Page 61 • Connect the unit base (if existant) and the filter base to each other by 4x M6 screws. • Connect also the A/C unit and the filter base to each other by 4x M6 screws. Filter base Baugröße Cabinet size 1140 Filteranzahl N° of filters © STULZ GmbH – all rights reserved EN/06.2021...
Page 62 • Set the plenum on top of the unit, fixing it by screws is not necessary. Discharge plenum with front and side grilles Baugröße Cabinet size 1145 1000 421,5 421,5 421,5 421,5 EN/06.2021 © STULZ GmbH – all rights reserved...
Page 63 11.3.4 Air discharge to the front The A/C unit features a closed unit bottom and a grille in the lower section of the front. Air discharge zone, keep clear Baugröße Cabinet size 1075 © STULZ GmbH – all rights reserved EN/06.2021...
Page 64 The values can be found in the table on the following page. Unit with adapter plate, top view Baugröße Cabinet size 1140 123,5 200 (2x) 180 (2x) 240 (1x) 200 (4x) 250 (4x) EN/06.2021 © STULZ GmbH – all rights reserved...
Page 65 • Attach the adapter plate to the unit as shown on the previous page. Adapter plate with damper Adapter plate with flexible connection The hole dimensions F1 and G1 also apply to the flexible duct connection. Baugröße Cabinet size © STULZ GmbH – all rights reserved EN/06.2021...
Page 66 • Push the adapter plate into the final position and readjust the cable. • Cut the cable to length and connect it to the Downflow unit, view from the left rear actuator according to the enclosed manufactur- er‘s instructions. EN/06.2021 © STULZ GmbH – all rights reserved...
Page 67 (1) and pushing the latch in the release but- ton sideways (2). Now you can manually move the blades to the desired position. Press the button again (3) to release the lock. © STULZ GmbH – all rights reserved EN/06.2021...
Page 68 The adapter plate can be fastened to the left and right of the unit frame with two self-tapping screws each. The fastening prevents the plate from slipping slightly due to vibrations. Knock-out openings for supply connections Adapter plate + damper Cable routing with damper below Operation See notes on previous page. EN/06.2021 © STULZ GmbH – all rights reserved...
Page 69 A section through a downflow unit is projected onto it, on which you can see the position of the supply lines in the standard version. • When planning, also take into account the width of the raised floor stand profiles (40 mm). 450,5 82,5 The point of origin refers to the adapter plate. © STULZ GmbH – all rights reserved EN/06.2021...
Page 70 A section through a downflow unit is projected onto it, on which you can see the position of the supply lines in the standard version. • When planning, also take into account the width of the raised floor stand profiles (40 mm). 450,5 82,5 The point of origin refers to the adapter plate. EN/06.2021 © STULZ GmbH – all rights reserved...
Page 71 A section through a downflow unit is projected onto it, on which you can see the position of the supply lines in the standard version. • When planning, also take into account the width of the raised floor stand profiles (40 mm). 550,5 82,5 The point of ori- gin refers to the adapter plate. © STULZ GmbH – all rights reserved EN/06.2021...
Page 72 A section through a downflow unit is projected onto it, on which you can see the position of the supply lines in the standard version. • When planning, also take into account the width of the raised floor stand profiles (40 mm). 550,5 82,5 The point of origin refers to the adapter plate. EN/06.2021 © STULZ GmbH – all rights reserved...
Page 73 The FCP must be placed on the A/C unit, fas- tened with screws and electrically connected. See installation description on the next page. Rear view Side view, left Rear view Top view Baugröße Cabinet size 1140 Gewicht Weight © STULZ GmbH – all rights reserved EN/06.2021...
Page 74 The damper is controlled by the EcoCool function of the controller. wArning Risk of bruising of limbs Do not insert fingers between the damper blades or near the gears. See notes on page 9. EN/06.2021 © STULZ GmbH – all rights reserved...
Page 75 Placing the supports B + 20 Baugröße Cabinet size 1140 Supports Stützen n° Rectangular profiles 70x40 Rechteckprofile 70x40 n° Mafundstreifen Mafund strips n° Schrauben M8x30 Screws M8x30 n° © STULZ GmbH – all rights reserved EN/04.2021...
Page 76 595 — 645 Recommended concrete Mafund plate 495 — 545 foundations (no floor finish) Upper edge of 355 — 405 rough floor 270 — 320 Connecting the bars (View from below) Angle Connection EN/04.2021 © STULZ GmbH – all rights reserved...
Page 77 • when the unit is in the right position take away the securing aids and set down the unit. • now pull away the mounting aids under the unit. Mounting aid © STULZ GmbH – all rights reserved EN/04.2021...
Page 79: Options
• Install two pre-fuses in the supply lines.The size of the pre-fuses depends on the terminal equipment (A/C unit). • Choose the cable cross-sections in accordance with local standards, the laying method and line lengths. © STULZ GmbH – all rights reserved EN/04.2021...
Page 80 When a limit value is exceeded the display lights up in red. Only when the corresponding restart value is reached again, the display colour changes to green. The original display dimensions are 32x16mm. EN/04.2021 © STULZ GmbH – all rights reserved...
Page 81 S5: Setting the limit values for excess voltage release S6: Setting the limit values for phase imbalance Function only for three-phase networks available. S7: Setting the rotating field control Function only for three-phase networks available. © STULZ GmbH – all rights reserved EN/04.2021...
Page 83 „off“ position. Toggle switches for digital outputs in „off“ Potentiometers for position analog outputs The image shows the board in the delivery condition, all toggle switches for the digital outputs are switched off. © STULZ GmbH – all rights reserved EN/04.2021...
Page 85 Height Behältervolumen Tank volume Mediumtemperatur, max. Medium temperature, max. °C °C Installation The pump must stand horizontally. • R emove the transport safety device by pulling out the plastic strip (see illustration). • Place the pump in a frost-proof and water-free place. For Downflow units: in the raised floor For Upflow units (if there is no raised floor): on the floor next to the air conditioning unit. © STULZ GmbH – all rights reserved EN/04.2021...
Page 86 When the water level is too high the contact is opened and an alarm is triggered. Start-up • Pour some water into the pump and check whether the pump is switch on and off. • P our continuously water into the pump until the alarm is triggered. In case of an alarm, the pump continues operating, if it is still functional. After the check, the pump is ready for operation. Maintenance • Disconnect the pump from the power supply. • Open the pump housing. • C lean the pump tank with a cleaning solution (potassium hypochlorite KClO) annually, to prevent bacterial infection. Make sure that the floating module remains clean. • After reassembling the pump, check the function. EN/04.2021 © STULZ GmbH – all rights reserved...
Page 87 12 mm can be connected. • L ay a pipe from the condensate drain of the A/C unit to the water inlet of the pump. The piping must have a slope. • Close the openings which are not used. Water inlet 2x ø40 mm Water inlet with adapter 1x G1“ © STULZ GmbH – all rights reserved EN/04.2021...
Page 88 When the water level is too high the contact is opened and an alarm is triggered. Start-up • Pour some water into the pump and check whether the pump is switch on and off. • P our continuously water into the pump until the alarm is triggered. In case of an alarm, the pump continues operating, if it is still functional. After the check, the pump is ready for operation. EN/04.2021 © STULZ GmbH – all rights reserved...
Page 90 Cy b e r a i r m i n i C w o r i g i n a L i n s t r u C t i o n s StULZ top Service – More than just quick emergency assistance...

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