RITTAL SK 3138000 Roof Mounted Fan Instruction Manual

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Roof-mounted fan
Assembly and installation instructions

SK 3138000
SK 3139100
SK 3139110
SK 3140100| SK 3140110
SK 3140140
SK 3140500
SK 3140510
---|---

Safety instructions

1.1 Safety instructions

• Assembly, installation and servicing may only be performed by properly trained specialists.
• Do not obstruct the air inlet and air outlet of the roof-mounted fan inside and outside the enclosure.
• The specific air throughput of the roof-mounted fans must be adequate to meet the climate control requirements of the enclosure.
• Use only original spare parts and accessories.
• Do not make any changes to the roof-mounted fan other than those described in these and other applicable instructions.
• The roof-mounted fan must only be connected to the mains with the system de-energized. Connect the perfuse specified in the Technical Specifications.
• Never insert your fingers into the rotating fan blade.
• The roof-mounted fan must only be fitted on a sealed enclosure with protected access to the electrical connection.
• Electrical connection and any repairs may only be carried out by authorized, specialist personnel.
• Children and persons with limited cognitive/coordinative abilities must not operate, maintain or clean the unit or be allowed to use it as a toy.
• Spending long periods in the airflow may irritate the eyes and muscles.
• If extinguisher gas is used in the enclosure, the roof-mounted fan must be incorporated into the fire protection concept.

1.2 Intended use
Ritual roof-mounted fans were developed and designed in accordance with the state of the art and the recognized rules governing technical safety. Nevertheless, if used improperly, they may pose a threat to life and limb or cause damage to property. The unit is only  intended for ventilating enclosures and electronic cases. Any other use is deemed improper. The manufacturer will not be liable for any damages caused as a result of improper use, or for incorrect assembly, installation or use. All risk is borne solely by the user.
Proper usage also includes the observation of all valid  documents and compliance with the inspection and servicing conditions.

Product description

2.1 Components

Key

1. Cover
2. Fan plate with fan
3. Inflow nozzle for air routing
4. Base tray with pleated filter
5. Electrical connector

2.2 Scope of supply

| 1x|

Tab. 1: Scope of supply

2.3 Function
2.3.1 General
The roof-mounted fan in conjunction with the corresponding inlet filter(s) is used to dissipate heat loss from enclosures and ventilate the enclosure, thereby protecting temperature-sensitive components.
This is achieved via the direct infeed of ambient air, the temperature of which must be lower than the admissible enclosure interior temperature.
The ambient air enters the enclosure via an air inlet grille in the lower section and is drawn upwards through the enclosure by the roof-mounted fan. The warmed air is then returned to the outside via the fan. It is not possible to change the air flow direction.
2.3.2 Safety devices
The fan is equipped with a thermal winding protection for protection against overload.
2.3.3 Filter mats
The roof-mounted fan is supplied with four pleated filters (class ePM10 50% to ISO 16890) pre-installed. The filter must be checked regularly depending on the level of dust exposure, and replaced as necessary.

Mounting

3.1 Choosing the installation site

• When choosing the installation site for the enclosure, please observe the following:
  – The site for the enclosure, and hence the position of the roof-mounted fan, must be carefully selected so as to ensure good ventilation.
  – The site must be free from excessive dirt and moisture.
  – Roof-mounted fans must always be installed on horizontal panels (roof).
  – The ambient temperature must be lower than the admissible enclosure interior temperature.
  – The mains connection data as stated on the rating plate of the unit must be guaranteed.

3.2 Notes on installation
3.2.1 General

• Check the packaging carefully for signs of damage. Any packaging damage may be the cause of a subsequent functional failure.

Note:

The inlet filter must ensure an adequate air exchange.

• The enclosure must be sealed on all sides (IP 54). If the enclosure has a leak, unfiltered, contaminated air may enter the enclosure.
• The fan motor is a rotating component that may transfer vibrations and oscillations.
• Appropriate measures to decouple vibration must be taken in advance by the company responsible for the overall plant or system.
• During transportation, the roof-mounted fan must be secured in accordance with section 3.3.2 or section 3.3.3 to prevent damage.

3.2.2 Layout of the electronic components in the enclosure

• Take note of the air flows from the internal fans of installed electronic components.
• When installing the roof-mounted fan, it is important to ensure that the airflows of fans and built-in electronic components do not adversely influence one another (air short-circuit).
• The corresponding minimum distances between the fan and component must be observed in order to ensure unhindered air circulation.

3.2.3 General

• Carefully deburr the cut-out to prevent injuries caused by sharp edges.
  – The position of the roof-mounted fan in the mounting cut-out is freely selectable. It should be based on the position of the electrical connection inside the enclosure.
  – No filter mats are needed in order to achieve protection category IP 21.

• Check that the clips are completely snapped into place to ensure that the roof-mounted fan is securely held in the mounting cut-out.
  – The filter mats may be removed to achieve a higher air throughput. In this case, the protection category will be reduced to IP 21 and UL Type 1.

• Use only original Ritual filters which bear the Ritual logo to be sure of the protection category, air throughout and approvals.
  – The protection category of the roof-mounted fan can be raised to IP 55. To this end, the pleated filters must be replaced with Rittal filter mats SK

3174100. The side with the Rittal logo must face towards the fan (see section 3.3.4).
         – Note: This reduces the air throughput. For details, please refer to the performance diagrams which can be found on the Rittal website.
         – You should inspect the filter regularly depending on the amount of dust. Recommended: Replace after 2,000 operating hours at the latest, and as and when necessary.
         – The orientation of the cover on the base tray is freely selectable.

3.3 Installing the roof-mounted fan
3.3.1 Installation IP 21

3.3 Installing the roof-mounted fan
3.3.2 Additional installation steps: Installation from outside IP 54/UL Type 12

3.3 Installing the roof-mounted fan
3.3.3 Additional installation steps: Installation from inside IP 54/UL Type 12

3.3.4 Additional installation steps: Enhanced protection category IP 55/UL Type 12

3.3 Installing the roof-mounted fan
3.3.5 Additional installation steps: Protection category IP 21/UL Type 1 and higher air throughput

Electrical connection

4.1 Connecting the power supply
4.1.1 Notes on electrical installation

• When performing the electrical installation, it is important to observe all valid national and regional regulations as well as the provisions of the responsible electrical supply company.
• The electrical installation must only be carried out by a qualified electrician who is responsible for compliance with the existing standards and regulations.

4.1.2 Connection data

• The connected voltage and frequency must correspond to the values stated on the rating plate.
• The electrical installation and any repairs may only be carried out by authorised specialist personnel.
• Use only original spare parts!
• Install the pre-fuse cited in the Technical Specifications (circuit-breaker or slow fuse) to protect from short-circuits.
• If several fans are operated on a single pre-fuse, observe the total connected load.
• The roof-mounted fan must be connected to the mains via an all-pole disconnecting device to overvoltage category III (IEC 61058-1).

4.1.3 Overvoltage protection and supply line load

•  The unit does not have its own overvoltage protection.
•  Measures must be taken at the supply end by the switchgear manufacturer or operator to ensure effective protection against lightning and overvoltage.
• The units are classified as overvoltage category III. The mains voltage must not exceed a tolerance of ±10%.

4.1.4 PE conductor connection

• The PE conductor must be connected to the PE conductor system of the overall system.

4.1.5 Installing the power supply

• Remove the mains connector from the packaging and connect to the mains as shown in the connection diagram.
• The connection terminal supplied allows the connection of cable cross-sections of 0.5 to 4 mm².
• A smaller pilot wire (section 4.2) may be selected (min. 0.34 mm²).
• In accordance with NFPA 70 (NEC), only copper conductors must be used to connect the supply cable to the mains connector.
• If no wire end ferrules are used, strip the individual wires by max. 9 mm (observe the applicable clearances and creepage distances).
• Connect the connector to the roof-mounted fan from below.

circuit-protected
0…10 V/PWM| 2| Control input 0…10 V or PWM, galvanically isolated, impedance 100 kΩ
GND| 3| GND connection of the control interface
Speed| 4| Speed output Open Collector, 1 pulse per revolution, galvanically isolated

Tab. 2: Connection designations
4.1 Connecting the power supply
4.1.5 Installing the power supply

4.2 Installing the pilot wire

• To control the EC roof-mounted fans via an external control unit (e.g. SK 3235440), types SK 31405xx have additional connections for the pilot wire.
• Release and remove the jumper between the “+10 V” and “0 – 10 V/PWM” (terminals 1 and 2) connections.
• Use a screwdriver with a 3.5 x 0.5 mm blade.
• Open the terminal with the screwdriver and insert the connection cable as shown in the connection diagram.
• Remove the screwdriver.
• To operate without a pilot wire, the jumper should be left in the connection terminal. The unit will then be operated at maximum speed.

1. Max. speed (as delivered, with jumper between the “+10 V” and “0 – 10 V/PWM” connections.
2. Adjustable speed
3. Adjustable speed via PWM 1 – 10 kHz
4. Adjustable speed via potentiometer

Commissioning

• Once all the assembly and installation work is complete, switch on the power supply to the roof-mounted fan.
  The roof-mounted fan operates automatically, in other words, the fan will start up once the power has been switched on.
  – EC roof-mounted fans start running with a delay of approx. 15 sec.

Inspection and maintenance

• Disconnect the electrical connection cable of the roof-mounted fan from the power supply.
  – The installed maintenance-free fan is mounted on ball bearings, protected against moisture and dust, and fitted with a temperature monitor.
  – The life expectancy is at least 50,000 operating hours (L10, 40 °C).
  – The roof-mounted fan is therefore largely maintenance-free.
  – From time to time, the components may need to be cleaned using a vacuum cleaner or compressed air if they become visibly dirty.
  – Any stubborn, oily stains may be removed using a nonflammable detergent, such as degreaser.

• Never use flammable liquids for cleaning the unit.

Sequence of maintenance work

• Check the level of dirt: If necessary, vacuum the fan housing, or clean with compressed air.
• Filter soiling: Replace the filter.
• Check the noise generation of the fan.

Storage and disposal

The roof-mounted fan must be stored at a temperature within the range specified in the technical data.
Disposal can be entrusted to the Rittal factory.
Please call for further information.

Technical specifications

Technical specifications| Unit| SK 3138000| SK 3139100| SK 3139110| SK 3140100| SK 3140110| SK 3140140| SK 3140500| SK 3140510
---|---|---|---|---|---|---|---|---|---

Electrical specifications

Rated operating voltage| V Hz| without fan motor| 220…240, 1~, 50/60| 115, 1~, 60| 220…240, 1~, 50/60| 115, 1~, 60| 380…415, 3~, 50/60 400…480, 3~, 60| 220…240, 1~, 50/60| 115, 1~, 60
---|---|---|---|---|---|---|---|---|---
Tolerance rated operating voltage|  | –| ±10 %
Rated current max.| A| –| 0.23/0.27| 0.56| 0.43/0.56| 1.2| 0.17/0.2| 1| 1.51
Power consumption| W| –| 51/62| 65| 99/130| 138| 90/120

98/130

| 129| 112
Pre-fuse| A| –| 3| –| 3
Motor circuit-breaker|  | –| –| 0.2…0.4| –
Rated insulation voltage (Ui)| V| –| 300
Rated impulse withstand voltage (Uimp)| kV| –| 4| 2
Control interface|  | –| –| included

Weight

Air throughput (for performance diagrams, see Rittal homepage)

Air throughput, unimpeded air flow (without filter mats)| m³/h| –| 500/525| 525| 873/965| 965| 863/942| 1069| 1069
---|---|---|---|---|---|---|---|---|---
Air throughput, unimpeded air flow (with pleated filter IP 54)| m³/h| –| 475/515| 515| 810/868| 868| 800/853| 975| 975
Air throughput, unimpeded air flow (with chopped-fibre filter IP 55)| m³/h| –| 417/446| 446| 725/759| 759| 700/749| 841| 841

Air throughput (with filter mats and inlet filter)

1 x SK 3243200 with chopped-fibre filter| m³/h| –| 360/383| 383| 557/572| 572| 550/565| 690| 690
---|---|---|---|---|---|---|---|---|---
1 x SK 3243200 with pleated filter| m³/h| –| 425/460| 460| 698/730| 730| 690/720| 847| 847
Fan|  |

–

| Radial/capacitor motor| Radial/rotary current motor| Radial/EC motor

Electromagnetic compatibility

small companies to EN 61000-6-3

Other

63
Operating temperature range| °C| -20…+55
Storage temperature range| °C| -40…+70
Degree of protection (according to IEC 60529)|  | IP 21 (without filter and installation in accordance with section 3.3.1 or 3.3.5)
IP 54 (with pleated filter and installation in accordance with section 3.3.2 or 3.3.3)
IP 55 (with chopped-fibre filter and installation in accordance with section 3.3.4)
Degree of protection (NEMA)|  | Type 1 (without filter and installation in accordance with section 3.3.2, 3.3.3 or 3.3.5)
Type 12 (with pleated or chopped-fibre filter and installation in accordance with section 3.3.2 or 3.3.3)

Tab. 3: Technical specifications

H2 = 27.5 mm for SK 3138000
H2 = 34.6 mm for SK 3139100, SK 3139110, SK 3140100,
SK 3140110, SK 3140140, SK 3140500, SK 3140510

Accessories

Pleated filter

To fit Model No.| Filter class in accordance with| Packs of| Model No.
---|---|---|---
DIN EN 779| ISO 16890
SK 3138000, SK 3139100, SK 3139110, SK 3140100,
SK 3140110, SK 3140140, SK 3140500, SK 3140510| M5| ePM10 50 %| 12 pc(s).| SK 3174120

Tab. 4: Pleated filter
Chopped-fiber filter

To fit Model No.| Filter class in accordance with| Packs of| Model No.
---|---|---|---
DIN EN 779| ISO 16890
SK 3138000, SK 3139100, SK 3139110, SK 3140100,
SK 3140110, SK 3140140, SK 3140500, SK 3140510| G3| ISO coarse 50 %| 12 pc(s).| SK 3174100

Tab. 5: Chopped-fiber filter
Enclosure internal thermostat

SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510| 1 pc(s).| SK 3110000

Tab. 6: Enclosure internal thermostat
Digital enclosure internal temperature display and thermostat

SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510| 1 pc(s).| SK 3114200

Tab. 7: Digital enclosure internal temperature display and thermostat
Hygrostat

SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510| 1 pc(s).| SK 3118000

Tab. 8: Hygrostat
Speed control

Tab. 9 : Speed control
Sensor for speed control

Tab. 10: Sensor for speed control
Control unit for speed control

Tab. 11: Control unit for speed control
Outlet filter

SK 3138000, SK 3139100, SK 3139110, SK 3140100, SK 3140110, SK 3140140, SK 3140500, SK 3140510| 1 pc(s).| SK 3243200

Tab. 12: Outlet filter

Warranty

The conditions named in the sales and delivery conditions of the associated Ritual agents and subsidiaries apply.

Customer services addresses

Headquarters Germany
RITTAL GmbH & Co. KG
Auf dem Stuetzelberg
35745 Herborn
Germany
Phone +49(0)2772 505-1855
Fax +49(0)2772 505-1850
E-mail: service@rittal.de| Service HUB China
RITTAL Electro-Mechanical Technology Co. Ltd.
No. 1658, Minyi Road
Songjiang District
Shanghai, 201612
Phone +86 21 5115 7799-213
Fax +86 21 5115 7788
E-mail: service@rittal.cn
---|---
Service HUB USA
RITTAL North America LLC
801 State Route 55 Dock 25
Urbana, OH 43078
Phone: +1 800 477 4000, option 3
E-mail: rittal@rittal.us| Service HUB India
RITTAL India Pvt. Ltd.
Nos. 23 & 24, KIADB
Industrial Area Veerapura
Doddaballapur-561 203
Bengaluru District
Phone +91 (80) 22890792
Fax +91 (80) 7623 343
E-mail: service@rittal-india.com

EU Declaration of Conformity
Dri171781400
Roof Mounted Fan
SK3138.000 SK3139.100 SK3139.110 SK3140.100 SK3140.110 SK3140SK 3140.500 SK 3140.510
folgenden Richtlinien entsprechen: / conform to the following Directives
Maschinenrichtlinie 2006/42/EG – Machinery Directive 2006/42/EC
EMV-Richtlinie 2014/30/EU – EMC Directive 2014/30/EU
EN ISO 12100
Safety of machinery — General principles for design — Risk assessment and risk reduction
EN 60335-1
Household and similar electrical appliances — Safety – Part 1: General requirements
EN 60529
Degrees of protection provided by enclosures (IP code)
EN 61000-6-2:2005
Electromagnetic compatibility (EMC) — Part 6-2: Generic standards; Immunity …
EN 61000-6-3:2007, A1:2011
Electromagnetic compatibility (EMC) – Part 6-3: Generic standards; Emission …
EN 61000-3-2:2014
Electromagnetic compatibility (EMC) – Part 3-2: Limits – Limits for harmonic current emissions
EN 61000-3-3:2013
Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage changes
Verantwortlich f~r Dokumentation
responsible for documentation
Rittal GmbH & Co. KG
Auf dem Stotzelberg
35745 Herborn

Frank
Executive Vice President R&D
In case of any amendments to the assembly not explicitly agreed with us, this EU Declaration of Conformity shall be invalidated.
Id. Nr. 335612
Dok. Nr. D-0000-00000434.
FRIEDHELM LOH GROUP

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You can find the contact details of all
Ritual companies throughout the world here.

www.rittal.com/contact
RITTAL GmbH & Co. KG
Auf dem Stuetzelberg · 35745 Herborn · Germany
Phone +49 2772 505-0
E-mail: info@rittal.de
www.rittal.com
03.2022/D-0000-00000432-04-EN

References

• Latest News, Breaking News, LIVE News, Top News Headlines, Viral Video, Cricket LIVE, Sports, Entertainment, Business, Health, Lifestyle and Utility News | India.Com News
• Rittal – Enclosures, Power distribution, Climate control, IT infrastructure, Software & services, Automation

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