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If not disposed of properly all refrigerators have components that can be harmful to the environment.  All old refrigerators must be 

disposed of by appropriately registered and licensed waste contractors, and in accordance with UK laws and regulations.  

DISPOSAL REQUIREMENTS

2

CONTENTS

 

Page

Table of Contents 

2

Duet Package Refrigeration System 

2

Duet Specifications 

3

Cooler Specifications 

4

Condensing Unit Technical Data 

5

FKS Cooler Dimensions 

6

FTG Cooler Dimensions 

7

Liquid and Suction Line Pipe Size 

7

Control Panel 

8

 

Microprocessor Controls - Duet HV, GP Series 

8

 

Thermostat Function 

8

 

Display 

8

 

Microprocessor Controls - Duet C, F, M, and L Series 

9

 

Thermostat Function 

9

 

Display 

10

Controller Parameter Settings 

10-11

Electrical System Description 

11

Duet Package Wiring Schematic 

12

Duet Installation Guidelines 

13

ENVIRONMENTAL MANAGEMENT POLICY. 

PRODUCT SUPPORT AND INSTALLATION CONTRACTORS 

Foster Refrigerator recognises that its activities, products and services can have an adverse impact upon the environment. The organisation is commit-

ted to implementing systems and controls to manage, reduce and eliminate its adverse environmental impacts wherever possible, and has formulated 

an Environmental Policy outlining our core aims. A copy of the Environmental Policy is available to all contractors and suppliers upon request. 

The organisation is committed to working with suppliers and contractors where their activities have the potential to impact upon the environment. To 

achieve the aims stated in the Environmental Policy we require that all suppliers and contractors operate in compliance with the law and are committed 

to best practice in environmental management. 

Product Support and Installation contractors are required to: 

1. Ensure that wherever possible waste is removed from the client’s site, where arrangements are in place all waste should be retumed to Foster 

Refrigerator’s premises. In certain circumstances waste may be disposed of on the clients site; if permission is given, if the client has arrangements in 

place for the type of waste. 

2. If arranging for the disposal of your waste, handle, store and dispose of it in such a way as to prevent its escape into the environment, harm to hu-

man health, and to ensure the compliance with the environmental law. Guidance is available from the Environment Agency on how to comply with the 

waste management ‘duty of care’. 

3. The following waste must be stored of separately from other wastes, as they are hazardous to the environment: refrigerants, polyurethane foam, 

oils.

 

4. When arranging for disposal of waste, ensure a waste transfer note or consignment note is completed as appropriate. Ensure that all waste is cor-

rectly described on the waste note and include the appropriate six-digit code from the European Waste Catalogue. Your waste contractor or Foster 

can provide further information if necessary. 

5. Ensure that all waste is removed by a registered waste carrier, a carrier in possession of a waste management licence, or a carrier holding an appro-

priate exemption. Ensure the person receiving the waste at its ultimate destination is in receipt of a waste management licence or valid exemption.

 

6. Handle and store refrigerants in such a way as to prevent their emission to atmosphere, and ensure they are disposed of safely and in accordance 

with environmental law. 

7. Make arrangements to ensure all staff who handle refrigerants do so at a level of competence consistent with the City Guilds 2078 Handling Refriger-

ants qualification or equivalent qualification. 

Summary of Contents for FKS 10-4

Page 1: ...T e c h n i c a l M a n u a l Duet Condensing Unit Cooler ...

Page 2: ...al management Product Support and Installation contractors are required to 1 Ensure that wherever possible waste is removed from the client s site where arrangements are in place all waste should be retumed to Foster Refrigerator s premises In certain circumstances waste may be disposed of on the clients site if permission is given if the client has arrangements in place for the type of waste 2 If...

Page 3: ...defrost heaters FKS Range with and without defrost heaters Control Panel Microprocessor Controller c w function indicators Ten metre sensing probes Component contactors Component circuit breakers Not included Interconnecting pipework Pipe installation Mechanical fasteners screws pipe clamps etc Refrigerant Mains supply wiring Lockable isolator switch White enclosure Remote alarm contacts Ancillari...

Page 4: ...4 Cooler Specification ...

Page 5: ... 50 3 2 6 2 9 7 27 20 1 x 400 3100 1 x 160 64 102 595 x 1075 x 532 10 22 DCU1 1L 0 75 R 404a 1 50 1 6 28 0 2 230 1 50 0 8 3 8 7 28 16 1 x 250 750 1 x 90 60 46 368 x 660 x 330 10 16 DCU2 1L 1 8 R 404a 1 60 2 5 28 0 2 230 1 50 1 4 8 6 16 40 20 1 x 300 1400 1 x 90 60 60 458 x 880 x 400 10 22 DCU3 3L 2 3 R 404a 1 60 2 5 28 0 2 400 3 50 1 8 4 5 6 2 25 16 1 x 300 1400 1 x 90 61 65 458 x 880 x 400 10 22 ...

Page 6: ...FKS Cooler Dimensions 6 ...

Page 7: ... pipe size should be determined by application Recommended maximum vertical change 5 metres The suction lines have been selected to achieve a pressure drop of 2psi or less whilst maintaining refrigerant velocity in the horizontal plane of 3 5m s 700ft min and in the vertical plane of 7 0m s 1500ft min to achieve oil return Model 43 C Ambient Liquid Line Pipe Size Suction Line Pipe Size Horizontal ...

Page 8: ... a single line appears on the display for 3 seconds to indicate the autotest period After this period the air temperature measured by the T1 probe is displayed It is strongly advised that before adjusting any Service Parameters a thorough understanding of the following instructions should be obtained LDU 15 CONTROLLER lae aux Check temperature set point Check set point by pressing the set button T...

Page 9: ...is 1 30 mins dEF is displayed during defrost and until the set time has elapsed after defrosting or until air temperature falls below the value setpoint hysteresis dtY Defrost type FAn Off cycle defrost ELE Electric heater defrost GAS Hot gas defrost doP Defrost optimisation con At regular intervals of drE hrs Acc Defrost timer only runs while evaporator temperature is below 0 C defrosting occurs ...

Page 10: ...lternate between ALM and air temperature while the alarm condition persists Display Parameter LDU151E B Duet High Temp Default Values Used in Panels F H L SCL Readout Scale 2 C 2 C SPL Minimum Temperature Set Point 05 0 SPH Maximum Temperature Set Point 01 8 SP Effective Temperature Set Point 03 2 HYS Hysteresis 3 3 CRT Compressor Rest Time minutes 10 2 CDC Compressor Regulation with T1 Fail 20 7 ...

Page 11: ... 23 24 25 26 DUET C F M L AND IC SERIES 00 OFF 01 Te FrS 02 Always ON Units Deg Deg Deg Min Min Sec Hrs Deg Min Min Min Flag Flag Min Deg Flag Deg Deg Min Flag Deg Deg Deg Flag 01 Mnemonic SPL SPh hYS coF con cdc crS drE dLi dto drP diS dtY doP Fct FrS Fid ALo Ahi AdL Ain oS1 oS2 oS3 SiM Adr Min Limit 50 SPL 01 00 00 00 00 01 01 00 00 01 FAn con 01 50 00 50 SPh 01 01 20 20 20 00 1 ELE 00 01 00 02 ...

Page 12: ...Cables for three phase supply Condensing Unit Unit Cooler Liq Line Solenoid 1mm2 3 core Evaporator Fan 1mm2 3 core Defrost Heater if fitted 1mm2 5 core Drain Line Heater 1mm2 3 core Wiring Diagram 00 838359 00 00 838362 00 See page 11 for model reference Compressor Fan 2 5mm2 5 core Supply In 230v 50 1 N Control Panel HP LP Switch 1mm2 3 core Optional Condenser Fan Pressure Switch Crankcase Heater ...

Page 13: ... of an oil separator should be considered especially on low temperature applications plus the position of the oil P trap and the size of the suction line to maximise oil return to the compressor 4 EVAPORATORS COOLERS FTG Range Ceiling Mounted These are used for small coldroom applications and are available for both high and low temperature conditions The low temperature models have defrost heaters...

Page 14: ...r Oldmedow Road King s Lynn Norfolk PE30 4JU England Tel 01553 691122 Fax 01553 691447 Website www fosterrefrigerator co uk E mail sales foster uk com a Division of ITW UK Ltd DUET TM 05 05 T e c h n i c a l M a n u a l ...

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