Table of Contents
Advertisement
Quick Links
DOL 278T
Emergency opening
Technical Manual
English For other language variants of this document we refer to:
Español Para otras variantes del idioma de este documento, visite:
Français Pour les versions dans d'autres langues de ce document veuillez consulter:
http://docs.skov.com/1060
603923 • 2022-05-12
Advertisement
Table of Contents
Related Manuals for Skov DOL 278T
Summary of Contents for Skov DOL 278T
- Page 1 DOL 278T Emergency opening Technical Manual English For other language variants of this document we refer to: Español Para otras variantes del idioma de este documento, visite: Français Pour les versions dans d'autres langues de ce document veuillez consulter: http://docs.skov.com/1060...
- Page 3 The date of change appears from the front and back pages. Note • All rights belong to SKOV A/S. No part of this manual may be reproduced in any manner whatsoever without the expressed written permission of SKOV A/S in each case.
-
Page 4: Table Of Contents
DOL 278T 1 Product description ............................ 5 2 Procedure................................ 6 3 Product survey ............................... 7 4 Mounting guide............................... 8 Mounting of climate sensors .................... 9 5 Installation guide............................ 10 Installation of battery....................... 10 Installation of the TEST supply separator ................ 10 Cable dimensions for 24V DC depending on length ............ -
Page 5: Product Description
20°C) when shutters are opened during start-up. To lower this heat loss the DOL 278T controls the winch motors during the first 3 minutes after the supply volt- age is restored, while the house controller starts up again. After this period the house controller resumes con- trol. -
Page 6: Procedure
DOL 278T 2 Procedure This manual describes the mounting, installation and commissioning of a DOL 278T controlled emergency opening system and is aimed primarily at the technicians and electricians who will be mounting, installing and testing the emergency opening system. -
Page 7: Product Survey
DOL 278T 3 Product survey 134692 DOL 278AMT-1 EmergencyOpen Temp Medium 4.2A Temperature-controlled emergency opening in a one-house version. Max. power consumption: 4.2 A Battery: 4 Ah Two temperature sensors are included (1 inside temperature sensor + 1 outside temperature sensor). -
Page 8: Mounting Guide
DOL 278T 4 Mounting guide 1. Drill holes in the bottom of the cabinet (A). 2. Place the emergency opening unit: - close enough to the house controller for the rubber sleeve supplied (B) to fit neatly between them (the emergency opening unit can be placed on either side of the house controller). -
Page 9: Mounting Of Climate Sensors
DOL 278T 4.1 Mounting of climate sensors • Never use a plug on the DOL 12 temperature sensor as a bad connection here could have disas- trous results. • Never use shrink-on sleeves when splicing wires inside the livestock house. Use a contact box. -
Page 10: Installation Guide
DOL 278T 5 Installation guide Installation, servicing and troubleshooting of all electrical equipment must be carried out by quali- fied personnel in compliance with the applicable national and international standard EN 60204-1 and any other EU standards that are applicable in Europe. -
Page 11: Cable Dimensions For 24V Dc Depending On Length
DOL 278T 5.3 Cable dimensions for 24V DC depending on length 2 A motor 4 A motor 8 A motor 10 A motor AWG Cross Length Length Length Length section 0 - 41 m 0 - 20 m 1.5 mm 42 –... -
Page 12: Connection To The House Controller
DOL 278T 5.5 Connection to the house controller 1. Remove the jumper plug (A) (place it in the bottom of the cabinet). 2. Connect the enclosed connecting cable (B). 3. Fasten the six conductors in the terminal block (C) Q1-Q5 and F6. -
Page 13: Setting Of Jumpers
• NORM/Normal emergency opening: Green light-emitting diode. Flashes rapidly (0.5 sec.) after start-up. In the WARM/Combi-Tunnel mode the DOL 278T does not allow for emergency opening for high inside temper- ature when the outside temperature is above 20 °C. It will, however, still allow for emergency opening at power failure. -
Page 14: Setup Options At High Power Consumption
DOL 278T at climate controller 24V / 4A, 8A or 10A supply for actuators If fans and actuators use DOL 278T, the jumper for ‘Emergency opening ON/OFF’ must be set to ON on the re- lays in the climate controller. -
Page 15: Cable Plan
DOL 278T 5.7 Cable plan Shady side House 2 House 1 Service room Controller Emergency opening Power supply Only two-house Technical Manual... -
Page 16: Wiring Diagrams
DOL 278T 5.8 Wiring diagrams 5.8.1 Emergency opening - Medium Emergency opening - Medium Winch motor - chimney Winch motor - wall House controller Technical Manual... -
Page 17: Emergency Opening - Large
DOL 278T 5.8.2 Emergency opening - Large Emergency opening - Large Winch motor - chimney Winch motor - wall House controller Technical Manual... -
Page 18: Emergency Opening - Temperature Controlled And With Dol 278 On/Off
DOL 278T 5.8.3 Emergency opening - Temperature controlled and with DOL 278 ON/ DOL 278T placed at climate controller and DOL 278 ON/OFF placed at fan. DOL 278 ON/OFF is used as extra power supply. No. 2 No. 1 Climate controller... -
Page 19: Number Of Fans And Actuators On Emergency Opening
DA 75 must be connected and supplied via thick cables from the relays of the climate controller. This is most efficiently done by or placing the DOL 278 ON/OFF or DOL 278T next to the climate controller. The documentation for the individual products shows the power consumption to be used when calculating the total power consumption for the emergency opening system. - Page 20 DOL 278T Yes: When the control fails, the air outlet is active. No: When the control fails, the air outlet is inactive. Side cooling Yes: When the control fails, side cooling is active and runs until the emergency situation is over.
-
Page 21: Testing
DOL 278T 6 Testing 6.1 Lamp indications Flashing sequence Cause Outdoor temperature compensation active: Switches on in the relevant side(s) (yellow). 2 sec. - endless Misplaced outside sensor: Move the outside sensor away from the sunlight. Flashes in both sides (yellow). -
Page 22: Testing The Installation
The red lamp and the green opening lamp must still be off. 11. Heat the DOL 278T-temperature sensor of the correct house (DOL 12) in your hand for a couple of min- utes. (Note that it is not the indoor temperature sensor of the house controller). -
Page 23: Testing Battery Capacity
The house controller must reset the shutters. If the test is carried out while it is cold outside (below 20 °C) the DOL 278T will keep regulating the shutters three minutes after voltage returns to the house controller. This is to prevent heat loss though the house con- troller opening the shutters during start-up. -
Page 24: Temperature Sensor Control Table
DOL 278T 6.4 Temperature Sensor Control Table 6.4.1 Table relating to DOL 12 temperature sensor control °C kΩ* °C kΩ* °C kΩ* 82.50 8.08 20.71 5.29 10.72 3.73 76.84 7.96 20.09 5.22 10.45 3.67 70.60 7.83 19.48 5.15 10.19 3.61 63.97... -
Page 25: Troubleshooting Guide
DOL 278T 7 Troubleshooting guide If two emergency openings are parallel connected the green lamp on the front of the DOL 278 ON/OFF must re- main lit during ”Testing the battery capacity with disconnected supply voltage”, as a sign that there is voltage on the battery. -
Page 26: Technical Data
20 % of the time and for 10 minutes at a time). (E.g. 1 house with 4.2 A on one DOL 278T. Motor operation is acceptable for max. 20 % of the time and for 10 minutes at a time). -
Page 27: Dimensioned Sketch
DOL 278T DOL 278T-1 Medium DOL 278T-1 Large DOL 278T-2 Medium DOL 278T-2 Large Environment °C (°F) -10 to +45 (+14 to +113) Operating temperature °C (°F) -25 to +60 (-13 to +140) Storage temperature Protection class 54 (splash-proof) It is assumed that the base surface is flat, i.e. ≤ there is a 1.5 mm dif- ference in height, and the front panel screw is tightened to a minimum of 1.5 Nm. - Page 28 SKOV A/S • Hedelund 4 • Glyngøre • DK-7870 Roslev Tel. +45 72 17 55 55 • www.skov.com • E-mail: skov@skov.dk...
Need help?
Do you have a question about the DOL 278T and is the answer not in the manual?
Questions and answers