Table of Contents
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Montage-, Installations- und Bedienungsanleitung
Assembly and operating instructions
Manuel d'installation et de maintenance
Montage- en bedieningshandleiding
Montage- och hanteringsanvisning
Istruzioni di montaggio e funzionamento
Instrucciones de montaje
Schaltschrank-Kühlgerät
Cooling unit
Climatiseur
Koelaggregat
Kylaggregat
Condizionatori per armadi
di comando
Refrigerador para armarios
SK 3302.xxx
SK 3302.3xx
SK 3303.xxx
SK 3304.xxx
SK 3305.xxx
SK 3328.xxx
SK 3329.xxx
SK 3332.xxx
SK 3361.xxx
SK 3366.xxx
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Summary of Contents for Rittal SK 3302.100
- Page 1 Schaltschrank-Kühlgerät Cooling unit Climatiseur Koelaggregat Kylaggregat Condizionatori per armadi di comando Refrigerador para armarios SK 3302.xxx SK 3328.xxx SK 3302.3xx SK 3329.xxx SK 3303.xxx SK 3332.xxx SK 3304.xxx SK 3361.xxx SK 3305.xxx SK 3366.xxx Montage-, Installations- und Bedienungsanleitung Assembly and operating instructions Manuel d’installation et de maintenance Montage- en bedieningshandleiding Montage- och hanteringsanvisning...
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Page 2: Table Of Contents
Fitting the cooling unit....20 4.7.3 Setting the filter mat monitor (only with e-Comfort controller)..20 Rittal cooling unit assembly and operating instructions... -
Page 3: Notes On Documentation
(refer enclosed with the unit in the form of a PDF file to the accessories in the Rittal Catalogue). (Adobe Acrobat) on CD-ROM This raises the door slightly and balances out the... -
Page 4: Device Description
Rear half of the enclosure Louvred grille for air outlet 3.1.2 Control Display Rittal enclosure cooling units are fitted with a con- Infill panel troller for setting the functions of the cooling unit. Louvred grille for air inlet Depending on the design, this is either a Basic con-... -
Page 5: Safety Equipment
(see “4.4 Connect- ing the condensate drain”, page 12). External con- densate evaporators are available as accessories for these unit types (refer also to the accessories in the Rittal Catalogue). Rittal cooling unit assembly and operating instructions... -
Page 6: Additional Interface X3
3.2 Proper usage – The site must be free from excessive dirt and moisture. Rittal enclosure cooling units were developed and – The ambient temperature must not exceed 55°C. designed in accordance with the state-of-the-art and the recognised rules governing technical safety. -
Page 7: Layout Of The Electronic Components In The Enclosure
Air diversion components are available as accesso- To this end, cut the side panel or door of the enclo- ries – please refer to the Rittal catalogue. sure as per the drilling template included with the It is important to ensure even air circulation inside the supply, and drill the relevant holes. -
Page 8: Cutting Out On The Enclosure
• Loosen the flat-pin connectors of the PE conductor between the two enclosure halves. • Disconnect the fan connection. Fig. 7: Secure the cooling unit • Remove the front enclosure tray completely. (all models except SK 3302.1xx) Rittal cooling unit assembly and operating instructions... - Page 9 • Push the display cable through the cable gland of the front enclosure half. Fig. 13: Connect the display connector • Carefully connect the display connector. • Push the louvred grille and, where applicable, the infill panel, onto the enclosure. Rittal cooling unit assembly and operating instructions...
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Page 10: Full Internal Mounting Of The Cooling Unit
• Push the louvred grille and, where applicable, inside of the enclosure, and secure it to the en- the infill panel, onto the enclosure. closure from the outside using the washers and nuts. Rittal cooling unit assembly and operating instructions... -
Page 11: Connecting The Condensate Discharge
The condensate hose is available as an accessory supply) of more than 100 A per phase and with (refer also to Accessories in the Rittal Catalogue). a supply voltage of 400/230 V. If necessary, the power supply company must be consulted to... -
Page 12: Door Limit Switch
X2 can be used to connect up to ten cool- ing units with the bus cable (Model No. SK 3124.100). Note: The electrical signals at the X2 interface are of an extra-low voltage (not extra-low safety voltages to EN 60 335-1). Rittal cooling unit assembly and operating instructions... -
Page 13: Installing The Power Supply
• If you would like the system messages from the cooling unit to be evaluated via the system message relay, you should also connect a suitable low-voltage cable to connection clamps 3 – 5. Rittal cooling unit assembly and operating instructions... - Page 14 SK 3303.500/.510, SK 3303.600/.610, SK 3361.500/.510, SK 3361.600/.610 Mains X1 L1 1 2 3 NTC_I Serial Power NTC_E NTC_C NTC_A Level Term 1 2 3 1 2 3 1 2 3 Fig. 23: Electrical wiring plan no. 2 Rittal cooling unit assembly and operating instructions...
- Page 15 NTC I red Serial NTC E blue Power NTC C white NTC A yellow Level green Term 1 2 3 1 2 3 1 2 3 Fig. 25: Electrical wiring plan no. 4 Rittal cooling unit assembly and operating instructions...
- Page 16 NTC C white NTC A yellow Level green Term 1 2 3 4 1 2 3 4 1 2 3 4 1 2 1 2 3 Fig. 27: Electrical wiring plan no. 6 Rittal cooling unit assembly and operating instructions...
- Page 17 Power NTC C white NTC A yellow Level green Term 1 2 3 1 2 3 4 1 2 3 1 2 3 1 2 3 Fig. 29: Electrical wiring plan no. 8 Rittal cooling unit assembly and operating instructions...
- Page 18 I max. = 2 A I min. = 100 mA U max. = 250 V U max. = 200 V U min. = 18 V I max. = 2 A Tab. 2: Contact data Rittal cooling unit assembly and operating instructions...
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Page 19: Finalising Assembly
You can now make your individual settings on the unit, e.g. set the temperature or (with e-Comfort con- troller only) assign the network identifier, etc. (refer to the “Operation” chapter). Fig. 31: Connect the display and attach the louvred grille Rittal cooling unit assembly and operating instructions... -
Page 20: Operation
(see Fig. 2, page 5) will run continuously and perma- nently circulate the internal enclosure air. The built-in Basic controller ensures automatic normal shut- down operation of the cooling unit by the value of the fixed preset switching difference of 5 K. Rittal cooling unit assembly and operating instructions... -
Page 21: Operating And Error Display
As soon as an error message occurs or nection diagrams under “4.6.4 Installing the power the power supply is interrupted, the relay drops out supply”, page 14): and contact 3 – 4 is closed. Rittal cooling unit assembly and operating instructions... -
Page 22: Test Mode For The Basic Controller
– 230 V to save energy, do not set the temperature – 400/460 V, 3-phase, supports multiple voltages any lower than is actually necessary. without rewiring – Integral start-up delay and door limit switch function Rittal cooling unit assembly and operating instructions... -
Page 23: Eco-Mode
Rittal door limit switch function. Computer Multi Control CMC. • Simultaneously press buttons 1 and 2 (Fig. 34) The cooling unit operates automatically i.e. -
Page 24: Editable Parameters
If necessary, the differential may be altered here within the range of 3 – 15 K. Eco-mode operation 0 Eco-mode OFF: 0 / Eco-mode ON: 1 Tab. 4: Editable parameters Rittal cooling unit assembly and operating instructions... -
Page 25: Programming Overview
6 Operation 6.2.6 Programming overview Fig. 36: Programming overview Rittal cooling unit assembly and operating instructions... -
Page 26: Defining System Messages For Evaluation
– Terminal 5: NO (normally open, relay 1) The definition NO refers to the de-energised state. As soon as power is applied to the cooling unit, both system message relays (relay 1 and 2) energise. Rittal cooling unit assembly and operating instructions... -
Page 27: Setting The Master-Slave Identifier
(see “6.2.10 07: Master with 7 slave cooling units Resetting the e-Comfort controller”, page 30). 08: Master with 8 slave cooling units 09: Master with 9 slave cooling units Rittal cooling unit assembly and operating instructions... - Page 28 Ambient parameters or heat loss outside of the applicable limits Cooling circuit leak Sensor B3 and B4 mixed up Correct sensor position Reset Manual device reset required, see “6.2.10 Resetting the e-Comfort controller”, page 30. Tab. 6: Troubleshooting with the e-Comfort controller Rittal cooling unit assembly and operating instructions...
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Page 29: Resetting The E-Comfort Controller
– Check the level of dirt. – Filter soiling? Replace the filter if necessary. – Cooling membranes soiled? Clean if necessary. – Activate test mode; cooling function OK? – Check noise generation of compressor and fans. Rittal cooling unit assembly and operating instructions... - Page 30 7 Inspection and maintenance Fig. 40: Remove the lower louvred grille Fig. 42: Disconnect the connector from the display (1) Fig. 43: Disconnect the connector from the display (2) Fig. 41: Remove the infill panel Rittal cooling unit assembly and operating instructions...
- Page 31 Fig. 49: Push back the display cable Fig. 45: Remove the external circuit fan (loosen the four screws) Fig. 50: Push the display cable through the cable gland Fig. 46: Remove the fan Rittal cooling unit assembly and operating instructions...
- Page 32 Fig. 54: Loosen the earthing cable between the cover and the chassis (2) Fig. 52: Remove the cover (2) Fig. 55: Clean out the heat exchanger coil and compressor chamber using compressed air (1) Rittal cooling unit assembly and operating instructions...
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Page 33: Compressed Air Cleaning Sk 3328.Xxx, Sk 3329.Xxx, Sk 3332
Remove the upper louvred grille (1) chamber using compressed air (2) 7.1.2 Compressed air cleaning SK 3328.xxx, SK 3329.xxx, SK 3332.xxx Fig. 57: Disconnect the power cord Fig. 59: Remove the upper louvred grille (2) Rittal cooling unit assembly and operating instructions... - Page 34 7 Inspection and maintenance Fig. 60: Remove the upper louvred grille (3) Fig. 62: Remove the lower louvred grille (2) Fig. 61: Remove the lower louvred grille (1) Fig. 63: Remove the infill panel Rittal cooling unit assembly and operating instructions...
- Page 35 Push back the display cable and press it through Fig. 70: Disconnect the fan connectors (2) the cable gland (2) Fig. 67: Loosen the four screws of the external circuit fan Fig. 71: Disconnect the fan connectors (3) Rittal cooling unit assembly and operating instructions...
- Page 36 Disconnect the fan earthing cable (1) Fig. 73: Disconnect the fan earthing cable (2) Fig. 75: Remove the cover Fig. 74: Loosen the four nuts of the cover Fig. 76: Disconnect the earthing cable (1) Rittal cooling unit assembly and operating instructions...
- Page 37 (2) Fig. 78: Clean out the heat exchanger coil and compressor Fig. 80: Clean out the heat exchanger coil and compressor chamber using compressed air (1) chamber using compressed air (3) Rittal cooling unit assembly and operating instructions...
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Page 38: Storage And Disposal
Please contact us for advice. Fig. 81: Rating plate (technical specifications) – Observe the mains connection data (voltage and frequency) as per the rating plate. – Observe the pre-fuse as per the specifications on the rating plate. Rittal cooling unit assembly and operating instructions... - Page 39 280 x 550 x 140 525 x 340 x 153 (285 x 620 x 298) (405 x 1020 x 358) Weight 17 (25) 17 (25) 39 (49) 44 (54) Information relevant for NEMA 4X Rittal cooling unit assembly and operating instructions...
- Page 40 400 x 950 x 260 (405 x 1020 x 358) 400 x 1580 x 295 (405 x 1650 x 388) Weight 40 (50) 41 (51) 46 (56) 42 (52) 66 (80) 73 (87) 67 (80) 69 (83) Information relevant for NEMA 4X Rittal cooling unit assembly and operating instructions...
- Page 41 (A) 72 Protection category to EN 60 529 – Internal circuit – IP 54 – External circuit – IP 34 Dimensions (W x H x D) 450 x 1590 x 195 Weight Rittal cooling unit assembly and operating instructions...
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Page 42: List Of Spare Parts
10 List of spare parts 10 List of spare parts SK 3302.xxx Fig. 82: Spare parts for SK 3302.xxx SK 3302.3xx Fig. 83: Spare parts for SK 3302.3xx Rittal cooling unit assembly and operating instructions... - Page 43 10 List of spare parts SK 3303.xxx SK 3361.xxx Fig. 84: Spare parts for SK 3303.xxx, SK 3361.xxx SK 3304.xxx SK 3305.xxx Fig. 85: Spare parts for SK 3304.xxx, SK 3305.xxx Rittal cooling unit assembly and operating instructions...
- Page 44 10 List of spare parts SK 3328.xxx SK 3329.xxx Fig. 86: Spare parts for SK 3328.xxx, SK 3329.xxx SK 3332.xxx Fig. 87: Spare parts for SK 3332.xxx Rittal cooling unit assembly and operating instructions...
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Page 45: List Of Spare Parts
Louvred grille 1 on the rating plate. Louvred grille 2 Infill panel Display Temperature sensor Enclosure tray Transformer Evaporator coil 100 Condenser 101 Condensate evaporator 102 Miniature fuse, condensate evaporator (T4A; 6.3 x 32 mm) Rittal cooling unit assembly and operating instructions... -
Page 46: Appendix: Cut-Out And Hole Sizes
SK 3304.xxx, SK 3305.xxx external mounting Fig. 90: SK 3302.3xx external mounting Ø 13 (10x) Ø 8 (4x) Fig. 91: SK 3303.xxx, SK 3361.xxx external mounting Fig. 94: SK 3328.xxx, SK 3329.xxx external mounting Rittal cooling unit assembly and operating instructions... -
Page 47: Dimensions For Partial Internal Mounting
Fig. 96: SK 3303.xxx, SK 3361.xxx partial internal mounting Ø 13 (4x) Fig. 99: SK 3332.xxx partial internal mounting 25 x 45 Ø 9.5 (4x) Fig. 97: SK 3304.xxx, SK 3305.xxx partial internal mounting Rittal cooling unit assembly and operating instructions... -
Page 48: Dimensions For Full Internal Mounting
Fig. 104: SK 3328.xxx, SK 3329.xxx full internal mounting 18 x 45° Ø 8 (4x) (230) Fig. 102: SK 3303.xxx, SK 3361.xxx full internal mounting Fig. 105: SK 3366.xxx, SK 3377.xxx full internal mounting Rittal cooling unit assembly and operating instructions... - Page 49 Enclosures Power Distribution Climate Control IT Infrastructure Software & Services RITTAL GmbH & Co. KG Postfach 1662 D-35726 Herborn Phone +49(0)2772 505-0 Fax +49(0)2772 505-2319 E-mail: info@rittal.de www.rittal.com...
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