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NuAire XBC75, Installation Manual

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NuAire XBC75 Installation Manual Download Page 16

16

09. 06. 21. Document Number  671786

Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk

XBC75 & 85 (AS Control)

Installation Manual

7.9 Wiring Diagrams

All inter-connections between circuit boards, blowers and sensors 
are made at the factory. This diagram only shows the essential field 
wiring points for clarity.

27 

Wiring Diagram - No Heater / LPHW

Summary of Contents for XBC75

Page 1: ...PARTS This unit contains fast moving rotational parts which may start automatically It is the sole responsibility of the installer to adequately guard these components REFER TO INSTRUCTION MANUAL Rea...

Page 2: ...ttenuator Length 900 900mm 6 Unit Roof No Suffix Standard Unit No Roof WP Twin Pitched Roof Factory Fitted 3 0 DELIVERY 3 1 Receiving Equipment All equipment is inspected prior to despatch and leaves...

Page 3: ...ensions mm and Weights kg Includes unit and 76mm high base frame Unit Code Unit Dimensions mm Control Dimensions mm Unit Weight kg Packed Weight kg A B C J K M E F G XBC75 H 2800 2126 876 940 740 940...

Page 4: ...ion Dimensions mm Weight kg Width Height Length 4 XBC75 H MD24V Motorised dampers 24V for Horizontal XBC75 Adapt Siemens AS control units 620 560 165 14 4 XBC85 H MD24V Motorised dampers 24V for Horiz...

Page 5: ...and Weights kg Unit Code Unit Dimensions mm Control Dimensions mm Unit Weights Packed Weights A B C J F H W D kg kg XBC75 H 2500 954 1416 610 894 60 954 2500 630 730 XBC85 H 3000 1000 1676 940 740 65...

Page 6: ...Weight kg Width Height Length 4 XBC75 V MD24V Motorised dampers 24V for Vertical XBC75 units with Adapt Siemens AS control 620 560 165 14 4 XBC85 V MD24V Motorised dampers 24V for Vertical XBC85 unit...

Page 7: ...ttery 5 2 Vertical Units e g XBC75 V XBC85 V 8 Vertical Unit Access All access panels are located on one side of the fan unit Note Unit must be isolated before panels are removed 9 Vertical Unit Overv...

Page 8: ...ndition Observe and record filter pressure drops after performance commissioning Typically filter dirty condition occurs when the initial filter clean readings have been increased by 125Pa If filter m...

Page 9: ...XBC75 H MD24V Vertical XBC75 V MD24V needs to be fitted after the silencer This ensures that breakout noise levels are kept to a minimum Fully interlocking parallel blades half inch diameter electrop...

Page 10: ...h the switch will trip When the pressure falls below this set value the switch returns to its resting position 6 4 2 Switch Wiring The cable gland is designed for cables with alternative sheath diamet...

Page 11: ...Air Temperature Sensor D Thermal Trip Electric Heater Only E LPHW Heater LPHW Models Only F Bypass Damper Drive G Condensate Pump Alarm H Fresh Air Temperature I Extract Fan Drive Health 6 5 2 Horizo...

Page 12: ...mer will produce an unpredictable result and is not recommended Volt free versions of the switched live signals are also available at terminals T33 T34 T35 T36 Link two contacts to activate the signal...

Page 13: ...MP terminals blocks 19 Removing Terminal Connections 7 7 4 Fitting Jumpers Terminal blocks can be connected together to increase the number of terminals at the same potential using push in jumpers In...

Page 14: ...cument Number 671786 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk XBC75 85 AS Control Installation Manual 7 8 Physical Layout Diagrams 7 8 1 Horizontal Units 25 Physical Layout Ho...

Page 15: ...15 09 06 21 Document Number 671786 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk XBC75 85 AS Control Installation Manual 7 8 2 Vertical Units 26 Physical Layout Vertical Units...

Page 16: ...ly CF83 1NA nuaire co uk XBC75 85 AS Control Installation Manual 7 9 Wiring Diagrams All inter connections between circuit boards blowers and sensors are made at the factory This diagram only shows th...

Page 17: ...17 09 06 21 Document Number 671786 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk XBC75 85 AS Control Installation Manual 28 Wiring Diagram Electric Heater...

Page 18: ...clockwise or anticlockwise It is recommended that the frost condition temperature is set at 4 C 8 2 Electric Frost Coils 8 2 1 Wiring The heater requires two connections the relay link up and the 400V...

Page 19: ...or cooling options 9 8 Frost Protection Should the internal temperature of the unit fall below a value defined in the commissioning variables the control will override all heating cooling logic to ope...

Page 20: ...ean with a soft brush or vacuum Check for signs of contamination 10 3 Annually Thoroughly inspect the unit and its components for corrosion acting immediately to treat restore any damaged areas All el...

Page 21: ...on plate attached to the unit casing Part Number Description XBC75 V FILTERKIT XBC75 Replacement G4 Panel Filters x4 776187 XBC75 Replacement Blower Assembly x1 18kg XBC75 H FILTERKIT XBC85 Replacemen...

Page 22: ...er and steps taken to prevent ingress of contaminants 4 0 OPERATIONAL LIMITS 4 1 It is important that the specified operational limits for the equipment are adhered to e g operational air temperature...

Page 23: ...23 09 06 21 Document Number 671786 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk XBC75 85 AS Control Installation Manual NOTES...

Page 24: ...24 09 06 21 Document Number 671786 Nuaire Western Industrial Estate Caerphilly CF83 1NA nuaire co uk XBC75 85 AS Control Installation Manual NOTES...

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