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Summary of Contents for Dantherm HEX 70
- Page 1 HEX 70/90/120 Service manual No. 067333 • rev. 1.0 • 29.06.2011 Betjeningsvejledning DVC-styring Side User’s guide for the DVC controller Page...
- Page 2 Der tages forbehold for trykfejl og ændringer Dantherm can accept no responsibility for possible errors and changes Irrtümer und Änderungen vorbehalten Dantherm n’assume aucune responsabilité pour erreurs et modifications éventuelles...
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Page 3: Table Of Contents
Introduction Overview Introduction This is the service manual for the heat exchangers HEX 70/90/120. The table of content below gives you an overview of the main sections. Please see the complete table of content for further information about the sections. -
Page 4: Table Of Content
This service manual covers the following topics: Topic See page Introduction Table of content General information Product description Functional description of HEX 70/90/120 and parts Control board Mounting and installation Service guide Preventive maintenance Spare part list How to replace the internal fan... -
Page 5: General Information
Target group The target group for this service manual are the technicians who install and maintain the HEX 70/90/120 unit as well as the users of the unit. Copyright Copying of this service manual, or part of it, is forbidden without prior written permission from Dantherm Air Handling. -
Page 6: Product Description
Product description Overview Introduction This section will give you a description of the HEX 70/90/120 and its functionality. Content This section covers the following topics: Topic See page Functional description of HEX 70/90/120 and parts Next page Control board... -
Page 7: Functional Description Of Hex 70/90/120 And Parts
External air flow Cold, external air is sucked into the external fan at the bottom of HEX 70/90/120 and let through the heat exchanger, where it cools down the internal air. After passing through the heat exchanger, the air is let back to the external environment at the top of the unit. - Page 8 Functional description of HEX 70/90/120 and parts, continued Control strategy The control board controls fans according to the air temperature in the cabinet of the top. Higher temperatures equal higher fan speed. Internal This illustration and the tables below show the speed of the internal fan according to fan strategy different temperatures.
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Page 9: Control Board
Control system The illustration on the right and the table below describe the control board. HEX 70/90/120 is controlled via a controller that controls the speed of the fans. The key features of the controller are: Onboard temperature sensor (NTC type) ... -
Page 10: Mounting And Installation
Mounting and installation Introduction This section guides you through mounting and installation of HEX 70/90/120. Only trained and certified technicians are allowed to mount and install the unit. Caution! Switch off DC supply before working on the unit ... -
Page 11: Service Guide
Service guide Overview Introduction This section gives all relevant information about servicing, spare parts and trouble shooting. Serial numbers Product model and serial numbers are found on the nameplate. Please have product model and serial numbers handy if you are contacting After Sales Support. -
Page 12: Preventive Maintenance
Preventive maintenance Introduction Preventive maintenance has to be carried out to keep the heat exchanger fit to meet specifications. The unit also needs preventive maintenance with specific intervals to avoid breakdown or inefficient operation and to maximize the unit‟s lifetime. It is important to notice that intervals between maintenance can vary depending on the specific environment of the unit. -
Page 13: Spare Part List
Spare part list Illustration Available spare parts for HEX 70/90/120: List List of spare parts including spare part numbers for HEX 70/90/120: Part no. Part no. Part no. Pos. Description HEX 70 HEX 90 HEX 120 Internal fan... -
Page 14: How To Replace The Internal Fan
How to replace the internal fan When to replace Only replace the internal when faulty or when replacement is due, e.g. after approxi- mately five years. Tools Make sure you have the following tools available before you start: Torx 20 screw driver Note: Reuse all screws if nothing else is stated ... - Page 15 How to replace the internal fan, continued Procedure, continued Step Action Unscrew the four torx 20 screws (two on each side of the unit) that hold the fan suspension Lift out the left side of the fan sus- pension, then the right side Disconnect the four-way multi plug from the fan Mount a new internal fan by following step 2 to 5 reversed and in opposite order...
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Page 16: How To Replace The External Fan
How to replace the external fan When to replace Only replace the internal when faulty or when replacement is due, e.g. after approxi- mately five years. Tools Make sure you have the following tools available before you start: Torx 20 screwdriver Note: Reuse all screws if nothing else is stated ... - Page 17 How to replace the external fan, continued Procedure, continued Step Action Cut the fan cable 20-30 cm from the fan Unscrew the four torx 20 screws (two on each side of the unit) that hold the fan suspension Slide the fan suspension a side and wiggle out the faulty fan Place two new rubber nuts at each end of the fan suspension Cut the new fan cable in appropriate length (according to the cut in step 4) Lead the cable up through the fan suspension...
- Page 18 How to replace the external fan, continued Procedure, Step Action continued, continued Fasten the cable with a cable binder Fasten the fan suspension with four new screws with glue. Important: Fasten with 1.5 Nm Remount the two plugs for the controller Remount the front cover Remount the controller Connect power...
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Page 19: How To Replace The Control Board
How to replace the control board Introduction This section shows you how to replace the control panel. When to replace Only replace the control board when faulty. Tools Make sure you have the following tools available before you start: Torx 20 screw driver ... -
Page 20: Service Agreement
There- fore the unit needs preventative maintenance on a regular basis. Dantherm Air Handling A/S „s After Sales Support Department is ready to help you in Hotline case of a problem. -
Page 21: Technical Data And Dimensions
Technical data and dimensions This section covers technical data and dimensions for HEX 70/90/120. See “Dimen- Introduction sions” further below. Technical data, This table shows the technical data for HEX 70: HEX 70 Specification Unit Value Supply voltage nominal Cabinet part dimensions (height x width x... - Page 22 Technical data and dimensions, continued Technical data, This table shows the technical data for HEX 90: HEX 90 Specification Unit Value Supply voltage nominal Cabinet part dimensions (height x width x 1227x447x167 depth) Cabinet part with drain dimensions (height x 1227x447x173 width x depth) Weight...
- Page 23 Technical data and dimensions, continued Introduction This section shows the dimensions for HEX 70/90/120. Measurements are in mm. Dimensions, HEX 70 Dimensions, HEX 90 Continued overleaf...
- Page 24 Technical data and dimensions, continued Dimensions, HEX 120...
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Page 25: Wiring Diagram
Wiring diagram Diagram This is the wiring diagram for the HEX 70/90/120 : Note: Only HEX 70 has a plug on the external circuit fan... -
Page 26: Index
Index alarm LED ..............9 preventive maintenance ..........12 product description ............6 cleaning ..............12 contact Dantherm Air Handling ........20 recycling ............... 5 control board ............9; 13 reservations ..............5 copyright ............... 5 RS 232 ................. 9 declaration of conformity ..........
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