Biddle MAT Installation, Operation And Maintenance Manual
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Biddle MAT Installation, Operation And Maintenance Manual

Cold store air curtain
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Installation, Operation, and Maintenance
Guide
Cold Store Air Curtain
Model MAT
R
Version of guide: 4.0
a

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  • Page 1 Installation, Operation, and Maintenance Guide Cold Store Air Curtain Model MAT Version of guide: 4.0...
  • Page 2 Copyright and trademarks All the information and drawings in this manual are the property of Biddle and may not be used (other than for the actual operation of the device), photocopied, duplicated, translated and/or be brought to the attention of third parties without Biddle’s prior written permission.

  • Page 3: Table Of Contents

    Installing the door switch 3.5.1 Mounting 3.5.2 Connecting Connecting to the mains 3.6.1 Introduction 3.6.2 Instructions Making the MAT air curtain ready for use 3.7.1 Initializing and testing the MAT air curtain 3.7.2 Adjusting the door switch 3.7.3 Settings Version: 4.0 (19-02-2003)
  • Page 4 TORE URTAIN Operation Introduction Operation in everyday use 4.2.1 Working modes 4.2.2 Controlling the working mode manually 4.2.3 Verifying the door position 4.2.4 Icing indication and alert light 4.2.5 Additional indications on the display 4.2.6 Faults Controlling the heating level 4.3.1 General 4.3.2...
  • Page 5 NSTALLATION PERATION AINTENANCE UIDE Fault messages 7.5.1 Display of fault messages 7.5.2 Resetting faults 7.5.3 What to do if there is a fault 7.5.4 Fault codes Index EC declaration of agreement Version: 4.0 (19-02-2003)

  • Page 6: Introduction

    How to use this guide 1.2.1 For whom is this guide intended? This guide is intended for those involved in the installation, the operation, or the maintenance of a MAT air curtain. Table 1-1 gives a recommendation of which parts you should read at least.

  • Page 7: Marginal Symbols

    • this entire guide • wiring diagram If you are unfamiliar with the MAT air curtain then read the chapters in sequence. If you are familiar with the device then you may use this guide as a reference. You can use the Table of Contents and the Index to find information.

  • Page 8: Pictograms On The Device And In The Guide

    ç contact. About the MAT air curtain 1.3.1 Application The MAT cold store air curtain separates the climates of the cold store and the front hall in order to: save energy, improve maintenance of temperature in the cold store, prevent mist and precipitation of ice in the cold store, without physical or visual obstruction of the doorway.

  • Page 9: Components Of The Mat Air Curtain

    UIDE NTRODUCTION 1.3.2 Components of the MAT air curtain A MAT air curtain is built up around a cold store door. It is always situated in the front hall, at the outside of the cold store. A MAT air curtain consists of several standard components,...

  • Page 10: How Does The Mat Air Curtain Work

    TORE URTAIN Note: The MAT air curtain shown in the figures in this guide is an example. There may be only one air curtain unit in your MAT air curtain. Also, the size(s) of the air curtain unit(s) may be different to suit the width of the cold store door.
  • Page 11 To save energy, the heating level should be as low as possible. The minimum required level depends on the climate condi- tions in the cold store and the front hall. If your MAT air cur- tain has a humidity sensor (optional), it can set the heating temperature automatically.

  • Page 12: Safety Instructions

    NTRODUCTION TORE URTAIN Safety instructions 1.4.1 Using Warning: High temperatures Do not block the inlets and outlets of the air cur- tain unit. The upper surface of the air curtain unit can become very hot: do not put inflammable objects on it.

  • Page 13: Building The Corridor

    NSTALLATION PERATION AINTENANCE UIDE UILDING THE CORRIDOR . . Building the corridor Introduction This chapter contains instructions for building the insulation of the corridor. At this stage, the corridor frame is supposed to be built and ready, as shown in Figure 2-1.

  • Page 14: Essential Construction Rules

    URTAIN 2.2.2 Essential construction rules The construction of the corridor is critical for the correct working of the MAT air curtain. The rules in this section must be followed carefully. Rules on geometry 1. The entire corridor must be free of air leaks at all places.

  • Page 15: Additional Instructions

    NSTALLATION PERATION AINTENANCE UIDE UILDING THE CORRIDOR Additional instructions 2.3.1 Possible corridor constructions Depending on the situation in the cold store, the following principles for the corridor are possible: 1. With the door inside the cold store: the corridor fits directly to the door opening.

  • Page 16: Points Of Attention

    UILDING THE CORRIDOR TORE URTAIN 2.3.2 Points of attention Note: When building the corridor, pay special attention to the following: • Attach the side panels 1 inside the frame as shown in the pictures, not outside. • Seal gaps between insulating elements. •...

  • Page 17: Installation

    . . Installation Introduction This chapter describes how to mount the components of the MAT air curtain, how to connect them, and how to make the device ready for use. At this stage, the corridor is supposed to be ready.

  • Page 18: Mounting The Air Curtain Unit

    NSTALLATION TORE URTAIN Mounting the air curtain unit If there are two air curtain units The primary unit may be placed either on the left side or on the right side. However, take into consideration the place- ment of the control unit (see Section 3.4.1). Follow the instructions in this section for each unit.

  • Page 19: Suspending

    NSTALLATION PERATION AINTENANCE UIDE NSTALLATION 3.3.2 Suspending 1. Lift the unit by its pallet, and place it approximately into its final position, according to Figure 3-3. Use a lifting device. 2. Place the suspension frame 4 onto the thread rods, over the horizontal bars of the corridor frame.

  • Page 20: Adjusting Horizontally

    Otherwise, the MAT air curtain will not work effectively, and undesired effects like mist and icing will occur. Figure 3-6 Correct placement of two air curtain units...

  • Page 21: Finishing The Insulation

    Caution: All gaps and holes in the corridor must be closed air leak free. Even small openings will make the MAT air curtain ineffec- tive, and may also cause undesired side effects like mist and icing. Caution: Larger openings must be filled with an thermally insulating material.

  • Page 22: Installing The Control Unit

    NSTALLATION TORE URTAIN Installing the control unit 3.4.1 Mounting 1. Determine the placement of the control unit: It must be placed in the front hall, not in the cold store. Place it near the primary air curtain unit: take into account the length of the connection cable.

  • Page 23: Installing The Door Switch

    NSTALLATION PERATION AINTENANCE UIDE NSTALLATION If there are two air curtain units • Connect the control unit to the primary air curtain unit as described above. • Connect the cable, that is attached to the primary air cur- tain unit, to the secondary air curtain unit by the M8 con- nector.

  • Page 24: Connecting

    NSTALLATION TORE URTAIN door is entirely closed: door is slightly or entirely opened: door switch contact is interrupted door switch contact is made Figure 3-9 Working principle of the door switch 3.5.2 Connecting • Connect the door switch to the control unit with a two- thread cable: 1.

  • Page 25: Connecting To The Mains

    AINTENANCE UIDE NSTALLATION Connecting to the mains 3.6.1 Introduction This section describes how to connect the MAT air curtain to the mains power supply. Danger: High voltages Do not attempt to do this, unless you are qualified to work with high-voltage power current.

  • Page 26: Making The Mat Air Curtain Ready For Use

    The fans stop running. The display should now look similar Figure 3-11. If the MAT air curtain does not work as described here, or if the display shows and/or , it is not working cor- rectly. See Chapter 7 ’Troubleshooting’...

  • Page 27: Settings

    2. Adjust the offset for the automatic heating control according to Section 5.4.2. If your MAT air curtain does not have a humidity sensor, or if manual heating control is required for an other reason: 1. Adjust the heating level according to Section 5.4.1.

  • Page 28: Operation

    TORE URTAIN . . Operation Introduction This chapter explains how to operate the MAT air curtain. At this stage, the MAT air curtain is supposed to be entirely installed and made ready for use. Warning: High temperatures high voltages Before you start to use the MAT air curtain, read the safety instructions in Section 1.4 on page...

  • Page 29: Controlling The Working Mode Manually

    AINTENANCE UIDE PERATION • When you close the door, and if the MAT has been in separation mode for at least some time, it will start work- ing in defrost mode: The display shows the symbol. The defrosting is necessary because icing-up is occurring in the interior of the air curtain unit while the door is open.

  • Page 30: Verifying The Door Position

    At this time you should close the door to allow defrosting. Caution: Allow the MAT air curtain to defrost at least when all tri- angles are showing and/or the icing alert light turns on. Too much icing-up will disturb the working, and may also icing alert light damage the air curtain unit(s).

  • Page 31: Additional Indications On The Display

    UIDE PERATION 4.2.5 Additional indications on the display The display shows some extra indications by which you can verify the working of the MAT air curtain: see the figure below. current heating level door is currently open (see Section 4.3)

  • Page 32: Controlling The Heating Level

    The large digits show the actual heating level of stream B at all times. The heating level is different when the MAT air curtain is in stand-by mode or defrost mode. 4.3.2 Setting the heating level Automatic heating control...

  • Page 33: Reading Climate Conditions

    1 If the small digits show “- -”, the information is not available, either because there is no secondary air curtain unit, or because your MAT air curtain does not have a humidity sensor. Version: 4.0 (19-02-2003)

  • Page 34: Settings In The Advanced Menu

    4.4.3 on page Note: The air curtain velocity (function no. 1) is usually set once when the MAT air curtain is adjusted (see Chapter 5). The other settings are optional: in most situations the default settings will be sufficient. 4.4.2 Operation...

  • Page 35: Functions In The Advanced Menu

    0 to 99 minutes (default setting = 10 minutes) icing-up time limit time that the MAT air curtain is allowed to work in sep- aration mode, before the icing-up is supposedly at its acceptable maximum setting range: 1 to 99 hours...

  • Page 36: Settings In The Expert Menu

    4.5.3 on page Note: Most of the settings in these functions are optional. If you change them inconsiderately, the MAT air curtain may not work correctly any more. You should not change these settings, unless you are instructed to do so.

  • Page 37: Functions In The Expert Menu

    MAT air curtain with humid- ity sensor If your MAT air curtain does not have a humidity sensor, the maximum humidity will be assumed. enable/disable manual con- 0 = the working mode can be controlled by both the...

  • Page 38: Adjusting The Air Curtain

    It is assumed, that the MAT air curtain, including the insula- tion structure and finishing, has been installed correctly. General working order 1. Open the cold store door entirely, and verify that the MAT air curtain is working in separation mode. (The display in the control unit shows .

  • Page 39: Adjusting The Heating

    NSTALLATION PERATION AINTENANCE UIDE DJUSTING THE AIR CURTAIN Adjusting the heating 5.4.1 Adjusting the heating with manual control First, make sure that the heating control mode has been set to actual heating level manual. (function no. 51 in the expert menu, setting 1) Find the lowest heating level that is just enough to have no mist appearing.

  • Page 40: Maintenance

    This section gives directions on regular maintenance, that is recommended by Biddle, in order to ensure the safety and proper working, and to extend the life of the MAT air curtain. 6.1.2 Weekly check-up Biddle recommends to carry out the following checks once a week: •...

  • Page 41: Three-Monthly Check-Up

    AINTENANCE UIDE AINTENANCE 6.1.3 Three-monthly check-up Biddle recommends to carry out the following checks every three months: • Test and inspect the corridor frame and the suspension of the air curtain units. They should show no sign of play or rust.

  • Page 42: Access To The Interior Of The Air Curtain Unit

    AINTENANCE TORE URTAIN Access to the interior of the air curtain unit Danger: Do not attempt to carry out maintenance inside the air curtain unit unless you are technically quali- fied. Warning: High voltages High temperatures Before accessing the interior of the air curtain unit, follow the safety instructions in Section 1.4.

  • Page 43: Access To The C Section

    NSTALLATION PERATION AINTENANCE UIDE AINTENANCE 6.2.4 Access to the C section The C section contains the fans for the C stream. 1. Move the grille 6 upwards at the rear site (some force may be needed for this) and take it out. For your convenience, you can also take out the blind plate 8: 2.

  • Page 44: Troubleshooting

    . . Troubleshooting Introduction This chapter gives directions on what you can do if problems occur with the working of the MAT air curtain. It provides help on identifying the cause and suggests solutions. What to do if you found a problem •...

  • Page 45: Unexpected Behaviour

    UIDE ROUBLESHOOTING Unexpected behaviour ROBLEM ROBABLE CAUSE HAT TO DO 1. The fault alert light The MAT has detected a fault. • Take immediate action: see (red) is on. Section 7.5. The display shows and/or 2. The icing alert light The icing-up time limit for work- •...
  • Page 46 URTAIN ROBLEM ROBABLE CAUSE HAT TO DO 6. The MAT air curtain The MAT air curtain is in defrost- The MAT air curtain is working does not stop running ing mode. (The display shows correctly: no action is required. when the door is closed.

  • Page 47: Undesired Side Effects

    6. Excessive icing-up in the The air curtain is disturbed See item 1 in this table. fans and/or the outlet is The MAT air curtain has been Close the door earlier to allow occurring. running too long without defrost- defrosting.
  • Page 48 7.5.3 What to do if there is a fault Take the appropriate actions to clear up the fault, depending on the fault code, according to Section 7.5.4. If the fault keeps recurring, or if it occurs recurrently, there is probably a defect: you should always contact Biddle.
  • Page 49 (see Section 4.5.3 on page 37). nent within it) has been 2. Contact Biddle if this does not help. changed. The control unit has power, but 1. Check the connections between the control unit no communication with any and the air curtain unit.
  • Page 50 TORE URTAIN AULT EANING PROBABLE CAUSE HAT TO DO The heating does not work, • Contact Biddle. probably because of a defect. The temperature sensor of • Contact Biddle. stream B is defect. The temperature sensor of • Contact Biddle.
  • Page 51 NSTALLATION PERATION AINTENANCE UIDE Version: 4.0 (19-02-2003)
  • Page 52 TORE URTAIN...
  • Page 53 NSTALLATION PERATION AINTENANCE UIDE Version: 4.0 (19-02-2003)
  • Page 54 TORE URTAIN . . . Index address ......2 electronics compartment ... . 42 advanced menu expert menu functions.
  • Page 55 NSTALLATION PERATION AINTENANCE UIDE liability ......2 reset control unit ....37 fault .
  • Page 56 EG-verklaring van overeenstemming (richtlijnen 89/336/EEG en 73/23/EEG) Middels dit schrijven verklaren wij, Biddle BV, dat het hieronder genoemde product in overeenstemming is met de bepalingen van de EMC-richtlijn 89/336/EEG en de Laagspanningsrichtlijn 73/23/EEG zoals laatstelijk gewijzigd. Voorts verklaren wij dat de normen EN55014-1 en EN55014-2 zijn toegepast.

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