Grundfos IMpress Installation, Operation And Maintenance Manual Download Page 24

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Pressure Display Change

The system pressures, simultaneously for both HOT and COLD are displayed in the form:-

C: 2.1B H: 1.9B

Where C: indicates the COLD circuit in the range to a maximum of 10.0 Bar, and H: indicates
the HOT circuit similarly to 10.0 Bar.

All other options and features remain the same as for the standard unit previously described.

Summary of Contents for IMpress

Page 1: ...IMpress Pressurisation Sets comprising of Basic Advanced Glycol and H C Installation Operation and Maintenance Manual...

Page 2: ...components functions not fitted to all units DELIVERY AND HANDLING On arrival inspect the unit s for signs of damage before signing the delivery note and report any damage to the supplier within 7 da...

Page 3: ...ion of sealed chilled water systems MAXIMUM OPERATING CONDITIONS The Grundfos range of IMpress units have been designed to Liquid temperature range 3 to 90 C Ambient temperature up to 40 C Relative Hu...

Page 4: ...not be subjected to extremes of temperature 2 The environment should be non aggressive and the atmosphere non explosive 3 Ensure that there is sufficient clearance around the unit to allow maintenance...

Page 5: ...e the front panel by lifting it off the locating pins in the base PIPEWORK CONNECTIONS The service connections to the pressurisation unit should be made as follows 1 Connect the mains cold water suppl...

Page 6: ...essurised water out 15mm NRV Pumps Mains supply in 5m of cable Elecrical connection Water connection Transducer Pump B Pump A Low Water DIMENSIONS WEIGHTS AND CONNECTION DETAILS PIPEWORK CONNECTIONS W...

Page 7: ...n Tank overflow 5 Bar Transducer Controller Feeder Water Tank Transducer Pump Pump Low Water Dosing pump Pulsing Water Meter Isolation Valve MIpress Glycol Duo system shown DIMENSIONS WEIGHTS AND CONN...

Page 8: ...s water in Pressurised water out 22mm NRV 2 off Pumps 2 off Mains supply 230 240v 45 60 Hz 5m of cable Module enclosure Pressurised water out 22mm Transducer 1 pump per circuit shown DIMENSIONS WEIGHT...

Page 9: ...ld be connected to a 240 volt single phase 13 amp supply only All cables must be of an adequate size to prevent excessive voltage drop in the supply to the unit The electrical installation should be i...

Page 10: ...Volt Free Contact Low Water Pump B Pump A 240V 1Ph 13A Mains Supply Microprocessor Controller PCB Pressure Transducer...

Page 11: ...Pump A Pump B 240V 1Ph 13A Mains Supply...

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Page 13: ...r do not pull on the cable Do not attempt to detached from the display board on the front cover The VFC changeover terminals are marked STOP No other connections are required or should be made into th...

Page 14: ...ty and the pumps to run dry as this could invalidate the pump warranty This is especially important after initial installation and during the fill cycle OPERATION Do not attempt to supply electricity...

Page 15: ...Up Menu Button When in Normal Operational Mode pressing this button will cause the controller to jump into the Set Up Menu Mode When in Set Up Mode this button will cause any displayed value to be sav...

Page 16: ...e The pump will switch off when the Set Pressure is reached Setting range 0 to 16 bars default setting 0 3 bars Note the setting for Differential B can be ignored Pump Test This feature prevents pumps...

Page 17: ...As e t t i n go f a l l s p a c e s b l a n k s d i s a b l e s t h eP IN Whilst it is recommended that a PIN be always programmed to prevent unauthorised tampering the User Set Up Menu is factory sh...

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Page 19: ...le Entry have been much expanded to keep abreast of additional Alarm BMS Telemetry and Communications features The Bottom of the Control Box is provided with two additional grey M16 Cable Glands and F...

Page 20: ...OL Version PUMP A RUN J110 PUMP B RUN J111 PRESS LOW J101 PRESS HIGH J102 WATER LOW J103 WATER LEAK J104 PUMP A FAULT J105 PUMP B FAULT J106 SERVCE DUE J107 SYSTEM FAULT J108 TELEMETRY VOLT FREE CONTA...

Page 21: ...le Entry Facilities for Cable Entry have been much expanded to keep abreast of the additional Alarm BMS Telemetry and Communications features of the Impress Advanced Mk 2 The Bottom of the Control Box...

Page 22: ...yed out terminals may not be installed in this version PUMP A RUN J110 PUMP B RUN J111 PRESS LOW J101 PRESS HIGH J102 WATER LOW J103 WATER LEAK J104 PUMP A FAULT J105 PUMP B FAULT J106 SERVCE DUE J107...

Page 23: ...OLD Set UP there are a number of Set Ups that refer to the HOT only which have been separated out for clarity into a separate sub section This sub section for the HOT Is accessed through the HOT SET U...

Page 24: ...T and COLD are displayed in the form C 2 1B H 1 9B Where C indicates the COLD circuit in the range to a maximum of 10 0 Bar and H indicates the HOT circuit similarly to 10 0 Bar All other options and...

Page 25: ...ng WATER LEAK The pumps have exceeded the maximum time they are allowed to run in any given hour Reset this alarm by Powering OFF and back again WATER LOW Sensor Float Switch low water level in break...