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Summary of Contents for Stulz CyberHandler 2
- Page 1 CyberHandler 2 Air Handling Unit Installation, Operation and Maintenance manual...
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Page 2: Table Of Contents
Unit housing ....... . . 40 Dismantling and disposal Contents of the CE declaration of conformity EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 3: Information On This Manual
Components signs Empty section Cooling coil Damper Cooling/heating coil Filter Heating coil Silencer Humidifier Controller Plate heat exchanger Compressor EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 4: Safety
The CyberHandler2 unit is intended to be installed in environments with special conditions (for example: explosive areas, rooms with conductive dust, electromagnetic field or aggressive or corrosive atmosphere), consult previously STULZ Tecnivel to check the compatibility of the UTA with these conditions. -
Page 5: Handling Refrigerants (Units With Dx Top-Up Or Dx Redundant)
• The AHU may only be operated with its revision doors and panels (casing) completely closed • The air-handling unit must always be operated within the range of operating parameters stipulated in the technical documentation supplied by STULZ. • Secure the unit to avoid the risk of overturning •... -
Page 6: Safety And Environmental Requirements
Independent conversion and manufacture of replacement parts The system may only be converted or modified after consultation with STULZ. Original replace- ment parts and replacement parts/accessories authorized by STULZ are an aid to safety. -
Page 7: Residual Risks
Wear safety gloves. Cover lower arms temperature of up to with clothing. 70°C. Electrical alimentation Falsely dimensioned Short-circuit, fire, acid vapours Correctly design alimentation cables cables or protection and protection elements. Wear protec- devices tive mask. EN/05.2019 © STULZ GmbH – all rights reserved... - Page 8 Electrical box Live electrical alimenta- Electric shock Check de-energized state of the tion cable alimentation before dismantling, Wear safety gloves. EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 9: Description
CWR: Chilled Water Redundant Coil DXT: DX Top-Up integrated system DXR: DX Redundant system with outdoor condensing unit Installation Configurations SH/RH: Supply Horizontal/Return Horizontal (Wall) SB/RH: Supply Bottom/Return Horizontal (Roof) SB/RB: Supply Bottom/Return Bottom (Roof) EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 10: Air Handling Unit Design
4b: Spray Nozzles: full water cone type, made of stainless steel. 5 Compressors Compressors used in Cyberhandler 2 units with DX system (DX Top-up and DX Redundant) are scroll compressors. These units are equipped with one inverter compressor and depending on the required cooling capacity, one or 2 ON/OFF compressors can be added. - Page 11 • Mix mode (not available for units with only adiabatic cooling): when the outdoor temperature is very high, the mechanical cooling switches on to top-up the indirect adiabatic cooling. EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 12: Operation Limits
Voltage tolerance: ± 10% Frequency tolerance: ± 1% Technical data Refer to the order-related documentation for the specific configuration of your CyberHandler 2 unit (unit drawing, electrical diagram, refrigerant circuit diagram, technical data). EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 13: Delivery/Transport/Storage
INSTALLATION, OPERATION AND MAINTENANCE MANUAL 5 Delivery/Transport/Storage Delivery of units The CyberHandler 2 unit is delivered either completely assembled or in separated unit compo- nents divided as indicated in the unit drawing. The complete units and individual modules must always be transported upright. -
Page 14: Transport With Crane (Via Shackles)
• With weatherproof units, make sure the protruding parts of the roof are not damaged by the lifting gear. • Do not lift any other loads together with the shipment unit. • Ensure the suspension angle doesn’t exceed 60°. Crossbeams Detail of the attachment system Fig. 5-1: Lifting gear EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 15: Assembly And Installation
In order to insulate the supporting structure from the vibrations produced by the unit, it is rec- ommended to use suitable anti-vibration mounts, such as rubber strip. Unit’s baseframe Vibration absorber Steel beam Concrete base Fig. 6-1: Installation on concrete base Fig. 6-2: Installation on steel beam EN/05.2019 © STULZ GmbH – all rights reserved... - Page 16 If the unit is to be installed against a wall (fig. 6-4) or back-to-back with another unit (fig. 6-5), fixing elements for modules connection must be located inside the unit (on the rear side). OPERATING SIDE Fig 6-4: Installation against the wall OPERATING SIDE OPERATING SIDE Fig 6-5: Installation back-to-back EN/05.2019 © STULZ GmbH – all rights reserved...
- Page 17 Duct work must be installed by qualified staff Warning: weatherproof units are not substitute to roof. It is not allowed to use weatherproof units as supporting surfaces of a building or similar roof substitutes in accordance to EN 13053 EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 18: Assembly (Units In Several Parts)
• Insert first the M8 x 30 mm Hex-head cap screws in the fixing element of the baseframe and secure it with the M8 nuts. Screws/nuts Module 2 Module 1 Fig 6-9: Assembly of baseframe EN/05.2019 © STULZ GmbH – all rights reserved... - Page 19 • Place a rivet in each drilled hole and secure it with a rivet gun Rivet Module 2 Module 1 Fig. 6-11: Assembly of roof Several modules joined together can be transported together only fixing the lifting gear to all the lifting lugs of the baseframe. EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 20: Installation
In addition to this, the asymmetry of phase between the conductors may amount to 2% maximally. The asymmetry of phase is determined by measuring the voltage differ- ence between the phase conductors. EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 21: Adiabatic System
Brass or copper parts cannot be used for pipe connection between a reverse osmosis plant and the adiabatic system of the CyberHandler 2 unit. Make sure the filling water flow is greater than the maximum evaporated waterflow, available on the technical sheet of your unit. - Page 22 Cooling Coil: Adiabatic system: Water draining (O 1.’’ GAS) water connection of upper module Adiabatic system: Adiabatic system: Water filling Water draining (Ø 3/4" GAS) (Ø 1 " GAS) Fig 6-9: water connection EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 23: Cooling Coil (Version Cwt/Cwr/Dxr)
We recommend to insulate the pipes of the external system, if they come into contact with external air, to prevent the introduction of heat from the ambient air as well as possible EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 24: Refrigerant Circuit (Version Dxt/Dxr)
If not, there is a leakage in the circuit and Stulz technical service must be informed. For units delivered in several modules refrigerant pipes of each module has to be joined. - Page 25 For the hot gas line we recommend to install a non-return valve as close as possible to the Air Handling Unit. The non-return valve avoids the return flow of liquid refrigerant from the con- denser when the AHU is not in operation. EN/05.2019 © STULZ GmbH – all rights reserved...
- Page 26 • Wait for 10 minutes and check the pressure value. • If the pressure keeps constant, tightness is OK. • If the pressure has dropped, the circuit must be checked for a possible leak, using a soapy solution. EN/05.2019 © STULZ GmbH – all rights reserved...
- Page 27 • If the pressure keeps constant, fill refrigerant (R410A) until the pressure value of 0.98 bar is reached (to break the vacuum) • Wait for 5 minutes and remove the refrigerant from the circuit. • Operate the vacuum pump again in order to realize a last evacuation. EN/05.2019 © STULZ GmbH – all rights reserved...
- Page 28 R410A is a binary blend. Take care that you add refrigerant in a liquid state, as the ratio of the refrigerant components changes if one of the two compounds passes over into the gaseous phase. EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 29: Commissioning
“Maintenance”. • Check the oil level at the compressor in respect of the right level. • The oil level should be between the lower quarter and the middle of the sight glass. EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 30: Adiabatic System
Adiabatic System In order to reduce legionella risks and increase the useful life of the plate heat exchanger and adiabatic system, Stulz recommends using water treated by reverse osmosis. Check if your Cyberhandler2 unit must comply with local regulation about control of legionella bacteria in water. -
Page 31: Cw Coil
For this purpose, open the venting screw located at the highest point of the cooling coil (or open a separate one). Coil Draining Fig 7-1: Venting of coil Siphon must be filled with water. EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 32: Maintenance
Clean coils) Check water inlet/outlet (water coils) Clean Check Siphon function and water level of Clean and top-up siphon (Cooling and evaporator coils) Check flow control valves (water coils) Clean and repair/replace EN/05.2019 © STULZ GmbH – all rights reserved... - Page 33 Check crankcase heater Check oil level Check oil level Check mechanical function of expan-sion Check mechanical function of expan-sion valve valve Check control module of the valve Check control module of the valve EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 34: Air Filters
Plate-fin heat exchangers (Cooling coil, heating coils) Use protection gloves to avoid injuries caused by sharp edges during maintenance and cleaning process Do not use high pressure water to clean coils, risk of damage to the unit EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 35: Ec Fans
Use a soft cloth and water with a neutral soap to clean the fan (housing, impeller) Do not use high pressure water to clean the device Do not use alkaline or corrosive substance to clean the device Do not use any pointed or sharp-edged objects for cleaning EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 36: Adiabatic System
- The prepared solution should not exceed 50 ml/m2 - Max. coverage should not exceed 2 m2 at any one time - In case of large scale utilisation, working area should be enough ventilated EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 37: Refrigerant Circuit
• the circuit has to be run dry by several (at least 3x) fillings and extractings of nitrogen, eventually change the filter drier. • fill with R410A according to weight (see type plate) EN/05.2019 © STULZ GmbH – all rights reserved... - Page 38 Units with a speed controlled compressor are not equipped with an oil sight glass. For these units it is not allowed to recharge oil in case of refilling a refrigeration circuit after a leakage. In such cases the compressor has to be exchanged. EN/05.2019 © STULZ GmbH – all rights reserved...
- Page 39 A: Terminal block for power lines B: Terminal block for control lines C: Fastening bracket D: Cooling fan E: PE connection F: Operating status LEDs G: Terminals for connecting a shunt reactor µPC Board EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 40: Unit Housing
Do not thaw by soldering flame, danger of explosion! Thaw with moist warm cloth Check the sightglass Unit housing Clean the unit casing with a microfiber cloth with lukewarm water (possibly add a neutral soap solution). Panels can be removed for replacement. EN/05.2019 © STULZ GmbH – all rights reserved... -
Page 41: Dismantling And Disposal
The electrical and electronical components installed in the electric cabinet must be separately disposed of according to the European directive 2012/19/EU. The concerned components are marked by the symbol of the crossed-out wheeled bin. EN/05.2019 © STULZ GmbH – all rights reserved... - Page 42 Depending on the option configured in the controller further alarm messages exist, which are explained in the C7000 Service manual. # stands for a number in case of several components of the same kind. EN/05.2019 © STULZ GmbH – all rights reserved...
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Page 43: Contents Of The Ce Declaration Of Conformity
0918_V0 - © STULZ Tecnivel, S.L. - Page 44 STULZ COMPANY BRAZIL MEXICO SINGAPORE HEADQUARTERS STULZ Brasil STULZ México S A de C V STULZ Singapore Pte Ltd Ar Condicionado Ltda Tel. +52 (55) 52 92 85 96 Tel. +65 6749 2738 STULZ GmbH Tel. +55 11 4163 4989...
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