Dantherm RBS 800 Service Manual
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Dantherm RBS 800 Service Manual

Dantherm RBS 800 Service Manual

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RBS 800
EN
N0. 910002 • rev. 2.0 • 01.12.2004

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Summary of Contents for Dantherm RBS 800

  • Page 1 RBS 800 N0. 910002 • rev. 2.0 • 01.12.2004...
  • 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...

  • Page 3: Topic

    Overview Introduction This is the service manual for the DANTHERM RBS 800. The below table of content gives you an overview of the main sections. Please see the complete Table of contents on page 4 for further information about the sections.

  • Page 4: Table Of Contents

    Table of contents Introduction This is the complete table of contents covering all sections in this service manual. Each main section will begin with an introduction including a separate table of contents covering the exact section. This service manual covers the following topics: Contents Topic See page...
  • Page 5 Table of contents, continued Contents, continued Topic See page How to replace the damper motor How to replace the temperature sensors Fault finding guide Hotline Recycling of the unit Service agreement Technical information Technical data Dimensions Resistance in temperature sensors...

  • Page 6: General Information

    Dantherm A/S. Reservations Dantherm A/S reserves the right to make changes and improvements of the product and the service manual at any time without prior notice or obligation. Dantherm A/S, Marienlystvej 65, DK-7800 Skive hereby solemnly declares that the...

  • Page 7: Product And Functional Description

    Product and functional description Overview Introduction This section describes the control strategy for RBS 800. Contents The section contains the following topics: Topic See page General description next page Damper Heating Set points Test facility Comfort temperature during visit by technician...

  • Page 8: General Description

    The unit can operate in temperatures from ÷ 40 °C to + 55 °C. The RBS 800 is intended in particular for positioning indoors, and its slim line design allows it to be installed in most rooms and containers.

  • Page 9: Fan

    The fan is monitored with the assistance of a pulse generator fitted in the fan. Back-up-function RBS 800 can also be used as back-up unit for other cooling units that are responsible of the primary cooling. In back-up mode will both the fan and the damper be hindered in operation because of the set point.

  • Page 10: Damper

    Damper Damper function Primary temperature regulation is carried out using a flow of outdoor air controlled by a damper. The supply air consists of a mixture of the air from the room and from outdoors. The opening and closing of the damper is determined by a sensor that measures the temperature of the supply air.

  • Page 11: Heating

    Heating Heating function The heating function is activated when the temperature of the return air matches the setting defined using the knob on the front of the control unit (Learn more about this in section ”Set points”, page 12). It will be deactivated when the return air temperature exceeds this setting by 3 °C. Return air temperature The fan speed will be fixed to 50 % when the heating element is activated.

  • Page 12: Set Points

    Set points Drawing This drawing illustrates the control panel with the dials: Dials Heat mode Setting of the heating mode set-point shall be made on the front of the control panel (see illustration above) and it can be set from 0 °C to 20 °C. Damper mode Setting of damper mode set-point shall be made on the front of the control panel and it can be set from 25 °C to 35 °C.

  • Page 13: Test Facility

    Test facility Drawing This drawing illustrates the control panel with the test button: Test Test When activating the test button the unit starts the 5-step-test program. The unit will run through the different tests according to the below table. The fail LED will operate normally indicating fail if and when detected. If any fail is detected during the test, the LED will flash with a frequency of 1 Hz for 30 seconds after the test is done to indicate some fault were detected.

  • Page 14: Comfort Temperature During Visit By Technician

    Comfort temperature during visit by technician Drawing This drawing illustrates the control panel with the comfort button: Comfort/Occupied On the front panel of the control unit, there is a button marked “Occupied” (see drawing Comfort temperature above). Press this button and hold it down for 1–2 seconds to initiate comfort temperature conditions with temperatures between 20 °C and 25 °C and with a reduced noise level.

  • Page 15: Communications Options

    Communications options Telemetry option All available information is supplied through the serial RS485 line. It is available through both RJ45 plugs located in the front of the control panel and in the plug behind the control unit. A PC program for testing and troubleshooting is also an option. The number of the unit is defined through a binary DIP converter located on the control unit.

  • Page 16: Description Of Indicators, Plugs And Switches

    Introduction This section describes the indicators, plugs and switches with reference to the control unit. DanCon All RBS 800 units are provided with a DanCon control panel. Illustration This drawing illustrates the control panel: Part/function This table gives you a description of each part on the control panel:...
  • Page 17 Description of indicators, plugs and switches, continued Signals of LED The LED provides different signals. The below table gives you a description of each signal: A jingle starts when the unit is connected. Part Function 1 × Green LED Supply Lit as soon as the control panel is powered up 3 ×...
  • Page 18 Description of indicators, plugs and switches, continued Part/function This table refers to the illustration on the previous page: Part Function DIP switch Selection of unit number Fuse 6,3 AT Heating element Fuse 6,3 AT Fuse 6,3 AT Not used Fuse 6,3 AT Not used Fuse 6,3 AT Not used...
  • Page 19 Description of indicators, plugs and switches, continued Part/function This table refers to the illustration above: Pin no. Function I Not in use D 10 Not in use D 14 Not in use D 18 Heating element D 22 Not in use D 26 Not in use D 30...
  • Page 20 Description of indicators, plugs and switches, continued Part/function This table refers to the illustration above: Pin no. Interconnection - “Warning” relay NC. Fail relay NC. Interconnection + “Warning” relay com. Fail relay com. Damper GND Damper control Damper supply 36 V AC supply Power meter compr.

  • Page 21: Unwrapping, Mounting And Installation

    This section describes how the unit must be unwrapped, mounted, installed, started and disconnect. Unwrapping The RBS 800 is delivered in cardboard packaging and consists of the following parts: • 1 x RBS 800 • 1 x floor flange (loose) •...
  • Page 22 Unwrapping, mounting and installation, continued Procedure To connect the climate control unit, follow these steps: Step Action Important Check that both the 220 V AC and 48 V DC connections are free from current before you start the connection procedure. Make sure that the 220 V AC connection is protected by a 10 A fuse.

  • Page 23: Service Guide

    Service guide Overview Introduction The climate control unit requires little maintenance. In fact the only maintenance required is replacement of the filter that prevents dust from the ambient air from entering the sensitive electronic circuits. When replacing the filter, you must clean the air ducts and test the functions of the climate control unit.

  • Page 24: Preventative Maintenance

    Preventative maintenance Introduction The units are often placed in tough environments distinguished by high temperatures, humidity and dust. Preventative maintenance is essential to ensure that the unit always has the capacity to perform as expected. Warning! Remember to disconnect all power supplies to the unit before starting work. The power must not be reconnected until the work has been completed and the unit is ready for testing.
  • Page 25 Preventative maintenance, continued Recommended Step Action procedure, continued Carry out the tasks specified in the checklist below Reconnect the power supply to the unit Carry out a PC test with a simulation of all temperatures. Alternatively, you can use the test function to run a test. Remember to check that the unit reacts as described in the section entitled: “Test facility”, page 13 The following tasks constitute the minimum to be carried out during a preventative Tasks...

  • Page 26: Spare Parts

    Spare parts Introduction This subject contains instructions for replacement of spare parts. Contents The subject contains the following topics: topic See page How to replace the filter next page How to replace the fan How to replace the control panel How to replace the heating element How to replace the damper motor How to replace the temperature sensors...

  • Page 27: How To Replace The Filter

    Before you start to replace the filter, make sure that you have the following with you: • 1 torx 25 screwdriver • 1 new panel filter from CAMFILL (Dantherm spare part number 290540) Drawing This drawing shows the climate control unit with the inspection cover in the middle of...
  • Page 28 How to replace the filter, continued Procedure To replace the filter, follow these steps: Step Action Switch off the AC and DC supplies to the unit Remove the torx screws to remove the inspection cover in the middle of the unit Remove the 4 torx screws to remove the filter.

  • Page 29: How To Replace The Fan

    • A torx 25 screwdriver • A socket screwdriver (straight notch) for disconnecting cables in the connector sleeve. • A new EBM fan (Dantherm spare part number 291830) Drawing This drawing shows the climate control unit with the inspection cover in the middle of...
  • Page 30 How to replace the fan, continued Procedure Follow these steps to replace the fan: Step Action Switch off the AC and DC supplies to the climate control unit Remove the torx screws to remove the inspection cover in the middle of the unit Remove the 4 torx screws that hold the fan in place Carefully pull the fan out and disconnect the cables from the plug...

  • Page 31: How To Replace The Control Panel

    Introduction The control panel is a PCB fitted with a microprocessor and inputs and outputs for all the electrical parts of the RBS 800. They control the fan and the damper on the basis of three temperature sensors. When to replace The control panel should only be replaced when it is broken.
  • Page 32 How to replace the control panel, continued Procedure Follow these steps to replace the control panel: Step Action Switch off the AC and DC supplies to the unit Remove the torx 20 screw that holds the control panel in place Pull the two white plastic handles out and press them away from the middle of the control panel.

  • Page 33: How To Replace The Heating Element

    Before you start, make sure that you have the following with you: • A torx 25 screwdriver • A small pair of pincers • A new heating element (Dantherm spare part number 290550) • Type TY125-40-1000 strips (142 x 3.6 mm) Drawing...
  • Page 34 How to replace the heating element, continued Procedure To replace the heating elements, follow these steps: Step Action Switch off the AC and DC supplies to the climate control unit Remove the torx screws to remove the inspection cover at the bottom of the unit Use the pincers to cut the strips that hold the cable to the heating unit Remove the torx screw at the very top of the heating element, and turn the...
  • Page 35 Before you start to replace the motor, make sure that you have the following with you: • A torx 25 screwdriver • A 13 mm crescent wrench or an adjustable spanner • A new damper motor (Dantherm spare part number 290530) • Type TY125-40-1000 strips (142 x 3.6 mm) Drawing...
  • Page 36 How to replace the damper motor, continued Procedure Follow this procedure to replace the damper motor: Step Action Switch off the AC and DC supplies to the climate control unit Remove the torx screws to remove the inspection cover in the middle of the unit Remove the three torx screws on the outside of the climate control unit which hold the damper motor in place...
  • Page 37 How to replace the temperature sensors Introduction There are three temperature sensors in an RBS 800: • Outdoor sensor • Return air sensor • Supply air sensor All the sensors are an integral part of the cable set, i.e. without plugs. To replace a sensor you therefore have to cut the old one out and solder the new one in place.

  • Page 38: Fault Finding Guide

    This section will give you an instruction in locating the fault, when the fail LED on the control panel is active. DanLink Besides fault finding from the LED signals Dantherm can provide DanLink as accessory. DanLink can provide you with specific information of where the fault is located.
  • Page 39 Fault finding guide, continued Alarm An alarm is activated on one of the following events: • The internal DC fan is stopped – no rotational pulse • The heater is faulty – doesn’t use current • Fail on the return air sensor – open or short •...

  • Page 40: Hotline

    Hotline Introduction The After Sales Support Department of Dantherm A/S is ready to help you in case of a problem. Information Please help yourself and us by having the following information prepared before making the call: Your name Company name...

  • Page 41: Recycling Of The Unit

    Recycling of the unit Introduction The air conditioner, heat exchanger or free cooling unit is designed to last for a number of years. When the time comes for the unit to be recycled, the following precautions should be taken to protect our environment. Please note that the guidelines are general –...

  • Page 42: Service Agreement

    Some of the activities above are not relevant for your product. The visit can also include other activities, for example battery checks. Corrective and In case of malfunctions of the product Dantherm offers to do corrective as well as emergency repair emergency repair on the climate units. Agreements will be made with the customer on response time and price.
  • Page 43 Technical information Overview Introduction This section contains the technical data for the unit. Contents This section covers the following topics: Topic See page Technical data next page Dimensions Resistance in temperature sensors...
  • Page 44 Technical data Performance These technical data refers to “Performance”: Specification Unit Designation Data Loads Cooling Heat load, int. fan and solar gain heater Heat dissipation at nominal voltage Flow int. m /h Temperature raise approx. 5 °C Idle Pressure Operate Operating pressure 101,3 Disp.
  • Page 45 Technical data, continued Electrical These technical data refers to “Electrical”: Specification Unit Designation Data Power consumption W Heater + fan 2100 Power consumption W Direct cooling Voltage Nominal (tolerance) 48 (32-56) Nominal (tolerance ± 10 %) Frequency Nominal Current AC/DC Start current AC/DC 9/15...
  • Page 46 Dimensions Dimensions of the See the dimensions on the drawings: unit...
  • Page 47 Resistance in temperature sensors Chart The chart below lists the resistance in the sensors at given temperatures. Temperature Resistance Temperature Resistance Temperature Resistance in Celsius in Ohms in Celsius in Ohms in Celsius in Ohms 90061 13391 2821 84325 12694 2700 78988 12037...

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