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nuaire.co.uk 

029 2085 8400

13. 03. 19. Document Number  671188

The EMC Directive

 

2014/30/EU

The Low Voltage 
Directive

2014/35/EU

ESBH

Ecosmart Boxer Air Handling Units 

 

Installation and Maintenance

1.0 INTRODUCTION

The information contained in this document provides details of 
installation, operation and maintenance for installers and users of the 
ESBH Ecosmart Boxer range of air handling units. 

A standard system incorporates the following, as appropriate to fan 
type: 

Inlet section

Filters

Electric or LPHW heater

Chilled Water or DX coil

Belt or Direct Drive section

Ecosmart control 

Fan failure circuit 

Integral temperature sensor

Optional extras may include: 

Silencers

Dampers

Heat Exchangers

Inlet and Outlet Terminals

Weathering Roof

Sensors

User controls

For systems which include supply fans with heating and/or cooling 
coils, other than where the BMS has control, the appropriate user 
control is required.

Code description: XBOXER XBC Ventilation Unit

 ESBH  S  *  - L  C

     |        |   |     |    |        

     1       2  3   4   5  

1. Ecosmart Boxer Range (High Efficiency)

2. S = Supply Unit 
    E = Extract Unit   

3. * = Unit Size (1-7)

4. N = No Heater 
     L = LPHW Coil 
     E = Electric Heater

5.  C = CHW Coil 
     D = DX Coil

AIRFLOW

Electric Heater

Fan Section

LPHW Heater

Cooler

Silencer

IMPORTANT

ECOSMART CONTROL BOXES - Units sizes 3 and above,  

incorporate control boxes on external casing as shown in 

Figure 1.

IMPORTANT

UNITS OF MODULAR CONSTRUCTION: Units sizes 3 and 

above will be supplied in modular sections, their assembly 

and wiring between controls, sensors and actuators located in 

each section is the responsibility of the installer and is  

discussed within this document.

Figure 1. Typical module arrangement.

Summary of Contents for ESBH Series

Page 1: ...t Terminals Weathering Roof Sensors User controls For systems which include supply fans with heating and or cooling coils other than where the BMS has control the appropriate user control is required...

Page 2: ...etised Forklift Slings via spreaders fitted to unit with base frame Figure 2 Figure 3 Figure 4 2 0 HANDLING Upon receipt of the equipment an inspection should be made and before commencement of liftin...

Page 3: ...equired install on a secure and level surface use the base frame and the weather roof tailored for each system Connect ducting inlet or extract cowls as appropriate 3 2 5 Wet Pipe Connections 3 2 Asse...

Page 4: ...erse effect on lighting etc There are no inrush starting currents quoted because the Ecosmart control incorporates a soft starting speed control feature The inverters are pre set to match the fan heat...

Page 5: ...itted DX2 coil Signal for if fitted 25 30 2 5 Set air off of LPHW coil temperature 0V 0 10V BMS signal Connections to Damper N L SL DP CL N RET Remove this link wire if NET connections for ECOSMART de...

Page 6: ...n 2 Heating Cooling Fault Frost Tx Rx Ecosmart signal Heat demand Run signal Fault signal DAMPER FAULT RUN HEAT DEMAND L3 L2 L1 N E 400V 50Hz 3ph N mains supply for fan 5 6 3 1 4 2 U V W E L1 L2 L3 U...

Page 7: ...1 15 13 14 12 9 7 5 8 6 10 11 15 12 14 13 CONTACTER A1 A2 ON OFF AUTO HEATER COOL Cooling signal demand Frost alarm signal DX1 coil Signal for if fitted Signal for DX2 coil if fitted 25 3 0 25 Set air...

Page 8: ...15 13 14 12 CONTACTER A1 A2 ON OFF AUTO HEATER COOL Cooling signal demand Frost signal alarm DX1 coil Signal for if fitted DX2 coil Signal for if fitted Connect to inlet sensor after unit is assemble...

Page 9: ...e as Data cable installation Keep the cable run as short as possible and less than 50 metres 4 1 9 BMS Input Signals The BMS connection is made with a plug in connector via the socket Figure 22 To ens...

Page 10: ...hen a fault is present on unit Frost Not applicable see note Tx LED on when the controller is transmitting data Rx LED on when the controller is receiving data Note that the control panel is common to...

Page 11: ...lt Tension Size 7 All belt drive units incorporate belt tensioning devices To adjust the belt tension slacken the pinch bolt on the sides of the motor plate Turn the adjusting bolt clockwise to tighte...

Page 12: ...s 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 air borne contaminants and unit orie...

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