NuAire xboxer xbx+ User manual

1
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
Ecosmart Connect (C) Control
Supply & Extract Ventilation with Heat Recovery
Installation Manual
1.0 SAFETY INFORMATION
• The provision of the electrical supply and the connection of the unit to the mains must be
carried out by a qualified electrician.
• Isolate from power supply before removing any covers. During installation / maintenance
ensure all covers are fitted before switching on the mains supply.
• All-pole disconnection from the mains as shown in the wiring diagram must be
incorporated within the fixed wiring and shall have a minimum contact separation of 3mm
in accordance with latest edition of the wiring regulations.
• This unit must be earthed.
• Ducting must be securely fixed with screws to the spigot to prevent access to live parts.
Duct runs terminating close to the fan must be adequately protected by suitable guards.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid a hazard.
• Precautions must be taken to avoid the back-flow of gases into the room from the open
flue of gas or other fuel-burning appliances.
• This appliance should not be used by children or persons with reduced physical, sensory
or mental capabilities or lack of experience and knowledge, unless they have been
given supervision or instruction concerning the safe use of the appliance by a person
responsible for their safety. Children shall not play with the appliance. Cleaning and user
maintenance shall not be carried out by children.
1.1 Symbols
GENERAL WARNING
Signifies a general warning regarding hazard specified by supplementary
information.
ELECTRIC SHOCK
This unit must be completely electrically isolated before any panels are
removed. Check mains supply and control connections.
ROTATING 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
Read and understand the installation and maintenance manual before installing,
operating or maintaining this product.

2
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
1.2 Important Information
This manual contains important information on the safe and
appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the
product.
While the product has been manufactured according to the
accepted rules of current technology, there is still a danger
of personal injury or damage to equipment if the following
general safety instructions and the warnings contained in these
instructions are not complied with.
•Read these instructions completely and thoroughly before
working with the product.
•Keep these instructions in a location where they are
accessible to all users at all times.
•Always include the operating instructions when you pass
the product on to third parties.
1.3 Personal Protective Equipment
The following minimum Personal Protective Equipment (PPE) is
recommended when interacting with Nuaire product:
•Protective Steel Toed Shoes - when handling heavy objects.
•Full Finger Gloves (Marigold PU800 or equivalent) - when
handling sheet metal components.
•Semi Fingerless Gloves (Marigold PU3000 3DO or
equivalent) - when conducting light work on the unit
requiring tactile dexterity.
•Safety Glasses - when conducting any cleaning/cutting
operation or exchanging filters.
•Reusable Half Mask Respirators - when replacing
filters which have been in contact with normal room or
environmental air.
Nuaire would always recommend a site specific risk assessment
by a competent person to determine if any additional PPE is
required.
2.0 INTRODUCTION
The information contained in this document provides details of
installation, operation and maintenance for installers and users of
the XBOXER XBC Supply and Extract Ventilation Unit with Heat
Recovery.
This supply and extract air handling unit range comprises an
combination of high eciency centrifugal fans with EC motors,
a Counterflow design plate heat exchanger, filters, optional
heaters (LPHW and Electric) and a casing with high mass acoustic
treatment.
A range of matched, close coupled attenuators with a similar
construction method to that of the unit is available. The
attenuators can be flipped for positioning on the left or right of the
fan unit
(Figure 1) allowing flexibility for duct layout.
Attenuators are available in 1050, 1250 and 1600mm lengths and
a matching attenuator flange is attached to the fan unit.
General information regarding performance and specifications
for the equipment may be obtained from our Technical Literature,
and/or project specific documentation.
XBC Unit
Room Side Extract / Supply Attenuator:
1050 / 1250 / 1600mm long (optional)
and Pump *
Access to Intake Filter /
Fan / Condensate tray
Atmospheric side Intake / Discharge Attenuator:
1050 / 1250 / 160
0 mm long (optional)
Access to Controls *
Access to Coil bleed and drain /
Valve / Valve Actuator /
Electric Heater Elements *
Access to Extract FIlter / Fan *
Factory Fitted Attenuator Flange
Blanking Panel (Flange Must Be
Rotated 180° If Using Alternative
Silencer Arrangement)
Attenuator / Flange Connector
Attenuator / Flange Connector
*Unlock an access panel by inserting a flat head screwdriver
into the locking latch and turning anti-clockwise (1/4 turn).
Note: Bottom access unit (BA) Filters cannot be accessed
from the side of the unit.
1 Unit Layout Overview

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
1. The unit configuration is such that the supply and discharge
connections are positioned at the centre. The corresponding
Intake and Extract connections may be positioned on either
side of the unit, allowing greater flexibility in the layout of
ductwork in the space, (Figure 4) with the blanking panel re-
positioned to suit.
2. The right handed horizontal unit configuration is shown in
Figure 6. With the light handed horizontal unit configuration
shown in Figure 5.
3. With absolute minimum clearance, the unit may be connected
to the power supply and control connections since the control
may be rotated by 90 degrees to face downwards. (Cable
connections must allow for the relative movement when the
control is re-positioned).Filters may be changed and the fans
coils, heat exchanger and condensate tray may be inspected
and cleaned if necessary.
4. The LPHW and Electrical heater settings, coil bleed and drain,
and all other control adjustments are similarly accessible
(Figure 1).
5. Side access, where possible, is preferred in all cases in terms
of safe working access to the equipment under the CDM
regulations.
6. Where these arrangements are not suitable, the Consultant’s
and Contractor’s project specific requirements will always be
accommodated where possible.
7. Bottom access only units (Example code: XBC25HA-LH2-
EPLB1S), provide access to filters only (Figure 7). Remove the
filter covers on the front panel of the unit by gripping the two
circular tabs either end of the filter covers and pulling away
from the unit. The filter can now be extracted. Once the filters
have been inspected return or replace them as necessary.
Filter removal is not available from the sides for bottom access
units. Bottom access units must be installed with the following
minimum clearance below the units. XBC15 = 225mm, XBC25 =
300mm,
XBC45 = 360mm, XBC55 = 480mm and XBC65 = 630mm.
Unit is shipped with 4x G4 filters in place, 2 of which are included
as spares. For higher grade replacement filters contact Nuaire.
Pressure drops will vary with filter grade and this change in
pressure must be accounted for when commissioning.
Unlocking an access panel is achieved by inserting a flat head
screwdriver into the locking latch groove and turning anti-
clockwise (1/4 turn), keys are neither required nor provided.
250mm clearance for access
on control side
Access covers
of fan unit
& basic control
Hinged Ecosmart
to assist with
commissioning.
box rotates 90
o
internal frame
Filter removal from
2 Minimum Controls Clearance (Side Access Unit)
2.1 Code Description
1 2 3 4 5 - 6 7 8 - 9 10 11 12 13 14
XB C10 HA- L H 4-CPLS1S
1. Range: XB = XBOXER
XP = Passivhaus-Certified
(Size 55 & 65 only)
2. HX Type C= Counterflow
E= Enthalpy*
3. Unit Size: 10, 15, 25, 45, 55, 65
4. Unit Layout: H = Horizontal
5. Filter Grade: A = G4 Supply & Extract Panel Filters
(XBC units only. Spare included)
F7 Supply & G4 Extract
(XPC units only. Spare included)
6. Heating Type: E = Electric
L = LPHW
N = No Heating
7. Heater Size: H = High Duty
L = Low Duty
N = No Duty
8. LPHW Valve Type: 4 = 4 Port Valve (3 way with bypass)
N = No Valve
9. Control Type: C= Ecosmart Connect Control
10. Constant Pressure - = Not Available
Controls: P = Constant Pressure
11. Controls Handing: L = Left Hand
R = Right Hand
12. Filter Access: B = Bottom Access
S = Side Access
13. Unit Finish: 1 = Standard
4 = Coastal (C4**)
14. Unit Roof: S = Standard Unit (No Roof)
W = Twin Pitched Roof (Factory Fitted)
*Enthalpy variants do not include a condensate pump or
condensate connections and can be installed in a vertical
orientation. It is important to ensure that safe access is available
to the control, filters and other accessible parts. Bottom access
units are highly recommended for this type of application. Contact
Nuaire for advice.
** This units coastal finish has been designed to withstand an
External C4 Atmospheric Corrosivity Category as per BS EN ISO
12944-2:2017 providing that it is installed and maintained as per
the manufacturer’s instructions and general Warranty Guidance
Notes found in our conditions of sale.
3.0 MECHANICAL INSTALLATION
Installation must be completed by competent persons, in
accordance with good industry practice and should conform to all
governing and statutory bodies i.e. IEE, CIBSE, etc.
3.1 Unit Access
In this product range, several unique concepts have been
implemented with a view to simplifying the installation design.
Nuaire recommend as best practice guidance, to allow for
a minimum of around 600mm clearance. Whilst an absolute
minimum access of 250mm is possible, access in this situation
is dicult and does not allow for major maintenance including
component replacement.

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
Filter
Filter
Retainer
Filter Well
Filter Removal:
Remove filter retainer (2 x M5 screws)
Lower filter into filter well in the base
Tilt filter and remove through panel
3 Side Access Unit Filters
4 Selectable Duct Connections (Top View)
Plan view
Extract
Counterflow Plate Heat Exchanger
Position 2.
Extract
Position 1.
Supply
Intake
(Fixed)
Position 1.
Intake
Position 2.
Discharge
(Fixed)
Filter
Plan view
Blanking
plate
Extract
Position 1.
Supply
(Fixed)
Intake
Position 2.
Discharge
(Fixed)
Filter
Blanking
plate
Coil connections
LPHW or Electric Heater Battery
Control
LPHW or Electric Heater Battery
Counterflow Plate Heat Exchanger
Filter access Filter access
Filter access Filter access
Plan view
Discharge Supply
(Fixed) (Fixed)
Extract
Position 1.
Blanking
plate
Blanking
plate
Intake
Position 2.
Control Coil connections
LPHW or Electric Heater Battery
Filter Counterflow Plate Heat Exchanger
Note:The unit is shippedwith four G4 filters in place, two of which are included as spares. For F7 filters contact Nuaire.
5 Left Handed (L) Arrangement (Top View)
Plan view
Extract
Counterflow Plate Heat Exchanger
Position 2.
Extract
Position 1.
Supply
Intake
(Fixed)
Position 1.
Intake
Position 2.
Discharge
(Fixed)
Filter
Plan view
Blanking
plate
Extract
Position 1.
Supply
(Fixed)
Intake
Position 2.
Discharge
(Fixed)
Filter
Blanking
plate
Coil connections
LPHW or Electric Heater Battery
Control
LPHW or Electric Heater Battery
Counterflow Plate Heat Exchanger
Filter access Filter access
Filter access Filter access
Plan view
Discharge Supply
(Fixed) (Fixed)
Extract
Position 1.
Blanking
plate
Blanking
plate
Intake
Position 2.
Control Coil connections
LPHW or Electric Heater Battery
Filter Counterflow Plate Heat Exchanger
Note:The unit is shippedwith four G4 filters in place, two of which are included as spares. For F7 filters contact Nuaire.
6 Right Handed (R) Arrangement (Top View)
Plan view
Extract
Counterflow Plate Heat Exchanger
Position 2.
Extract
Position 1.
Supply
Intake
(Fixed)
Position 1.
Intake
Position 2.
Discharge
(Fixed)
Filter
Plan view
Blanking
plate
Extract
Position 1.
Supply
(Fixed)
Intake
Position 2.
Discharge
(Fixed)
Filter
Blanking
plate
Coil connections
LPHW or Electric Heater Battery
Control
LPHW or Electric Heater Battery
Counterflow Plate Heat Exchanger
Filter access Filter access
Filter access Filter access
Plan view
Discharge Supply
(Fixed) (Fixed)
Extract
Position 1.
Blanking
plate
Blanking
plate
Intake
Position 2.
Control Coil connections
LPHW or Electric Heater Battery
Filter Counterflow Plate Heat Exchanger
Note:The unit is shippedwith four G4 filters in place, two of which are included as spares. For F7 filters contact Nuaire.
7 Bottom Access Unit Filters
Plan view
Extract
Counterflow Plate Heat Exchanger
Position 2.
Extract
Position 1.
Supply
Intake
(Fixed)
Position 1.
Intake
Position 2.
Discharge
(Fixed)
Filter
Plan view
Blanking
plate
Extract
Position 1.
Supply
(Fixed)
Intake
Position 2.
Discharge
(Fixed)
Filter
Blanking
plate
Coil connections
LPHW or Electric Heater Battery
Control
LPHW or Electric Heater Battery
Counterflow Plate Heat Exchanger
Filter access Filter access
Filter access Filter access
Plan view
Discharge Supply
(Fixed) (Fixed)
Extract
Position 1.
Blanking
plate
Blanking
plate
Intake
Position 2.
Control Coil connections
LPHW or Electric Heater Battery
Filter Counterflow Plate Heat Exchanger
Note:The unit is shippedwith four G4 filters in place, two of which are included as spares. For F7 filters contact Nuaire.
3.2 Delivery of Equipment
3.2.1 Receipt of Equipment
All equipment is inspected prior to despatch and leaves the
factory in good condition. Upon receipt of the equipment an
inspection should be made and any damage indicated on the
delivery note.
Particulars of damage and/or incomplete delivery should be
endorsed by the driver delivering the goods before ooading
by the purchaser. No responsibility will be accepted for damage
sustained during the ooading from the vehicle or on the site
thereafter. All claims for damage and/or incomplete delivery must
be reported to Nuaire within two days of receipt of the equipment
following Nuaire's Terms & Conditions.
3.2.2 Ooading and Handling
The weight of the unit modules and palletised items is displayed
on the unit rating plate or on the packaging. Some of the modules
have an uneven weight distribution, and this will be indicated
by labelling where appropriate. Ensure that lifting and handling
equipment is adequately rated. Ooading and positioning of the
equipment is the responsibility of the purchaser.
Spreaders should be used when lifting with slings to avoid
damage to the casings. Care must be taken to ensure that slings
are correctly positioned to avoid crushing and twisting of the unit
castings.
Where channels and/or support frames are bolted to the
underside of the unit casing, slings or fork-lift arms should be
positioned to locate in the apertures in the channels. If lifting eyes
have been supplied / fitted it is recommended that they are used.
XBOXER XBC units will be delivered to site in one section
and will be labelled with the direction of air flow. The direction
convention must be observed during assembly.
The unit may only be operated in its intended horizontal
installation plane and must be fully levelled during installation (this
is essential to ensure that condensate drains correctly).
See Section 3.5 for dimensions and weights.

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
8 Unit Lifting
Palletised.
Slings via spreaders fitted to unit with base frame.
3.2.3 Storage
The equipment must be stored in a dry, internal location.
Ductwork connection apertures shall be sealed against the
ingress of dust, water and vermin. Do not stack units, modules or
components.
Where fans are to be stored or bonded for extensive periods
follow the Warranty Guidance Notes found in our conditions of
sale.
3.3 Assembly of Equipment
Units must be installed in accordance with good industry practice.
These units may only be mounted horizontally and must be fully
levelled in the horizontal plane. The units are heavy, and should
be mounted using the fixing brackets supplied or other suitable
methods of support. The supporting structure must be assessed
for structural suitability.
Heat recovery components and modules that incorporate cooling
coils may produce condensation during use. An insulated drip
tray and condensate pump is provided. The drain connection
must be connected to a suitable drainage point (Figure 23 on
page 13 for details).
3.4 Condensate Pump (Not Applicable To XBE Units)
3.4.1 Condensate Pump Alarm
The condensate pump incorporates an alarm function. If the
water level in the condensate tray exceeds a maximum level
(for example, as a result of the discharge tube becoming
blocked or frozen), the alarm contact will open. This contact is
internally connected to the heat exchanger bypass actuator,
and the unit will automatically be placed into bypass mode,
preventing further condensate production. Unit operation will
otherwise be unaected.
3.4.2 Condensate Pump Specification
Maximum flow rate = 12 l/h
Maximum head = 20m Vertical, 100m Horizontal
Pipe Connection size (Condensate) XBOXER XBC = 8 mm
LPHW Coils, if fitted, are tested during manufacture to 16 Bar
(using dry compressed air). Coil and valve assemblies are similarly
tested to 10 Bar. The operation of standard equipment is rated to
PN6.
Electrical connections to the unit shall be made in accordance
with the appropriate product and installation wiring diagrams
provided, and shall use appropriately sized and rated cables.
Only the prepared apertures in the unit casing may be used for
cable entry. Do not drill or cut the unit casing for this purpose.
Cable access points are provided at the ends of the control
enclosure.
If the control is rotated to aid connection of cables, please ensure
that sucient flexibility is provided in the final connection run.
To avoid conflict with the unit access panels, it is
recommended that electrical and plumbing service
connections to the unit are run at 90 degrees to the main air
flow axis.
Control circuit connections must be segregated (i.e. routed
separately) by a minimum of 50mm from power connections.
The unit rating label shows the maximum electrical load of the
equipment. Connections to the unit may include single phase
supply connections, and a variety of control circuits.
Only the prepared apertures in the unit casing may be used for
cable entry. Do not drill or cut the unit casing for this purpose.
The equipment must be earthed and earth-bonded. Means of
local isolation for maintenance purposes are generally required
(by others). Ensure that all mains connections are isolated

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.5 Dimensions & Weights
B
E
FK
C
G
M
End View
Side View
Plan View
OUTLET INLET
J
A
B
E
FK
C
G
M
End View
Side View
Plan View
OUTLET INLET
J
A
9 Unit Dimensions & Weights
Unit Code Unit Dimensions (mm) Control Dimensions (mm) Unit Weights Packed Weights
A†B C J K M E F G (kg) (kg)
XBC10HA-***-*** 1600 1000 260 238 220 347 130 210 640 195 261
XBC10HA-***-**W 1600†1210 335 238 220 347 210 230 674 217 283
XBC15HA-***-*** 1600 1000 260 238 220 347 130 210 640 195 261
XBC15HA-***-**W 1600†1210 335 238 220 347 210 230 674 217 283
XBC25HA-***-*** 1713 1160 340 252 302 471 130 210 640 242 308
XBC25HA-***-**W 1713†1390 426 252 302 471 276 287 820 267 333
XBC45HA-***-*** 1912 1262 400 270 360 531 130 210 640 298 405
XBC45HA-***-**W 1912†1490 487 270 360 531 276 287 954 328 435
XBC55HA-***-*** 1956 1562 472 397 430 587 130 210 640 375 546
XBC55HA-***-**W 1956†1562 571 397 430 587 215 386 1000 410 581
XBC65HA-***-*** 1913 1572 620 398 580 588 130 210 640 476 652
XBC65HA-***-**W 1913†1796 725 398 580 588 215 514 1000 514 690
† Excludes length of overhanging weatherproof roof.

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.6 Hanging Bracket Positions
A
BC C
43
1 2
Unit Code Dimensions to Hole Centres (mm)
A B C
XBC10HA-***-*** 1068 830 385
XBC15HA-***-*** 1068 830 385
XBC25HA-***-*** 1232 884 415
XBC45HA-***-*** 1332 1020 447
XBC55HA-***-*** 1632 1052 424
XBC65HA-***-*** 1644 1054 430
10 Unit with Hanging Brackets Attached
3.7 Flange Connector Dimensions (mm)
INTAKE /
EXTRACT
A
B C
D
SUPPLY /
DISCHARGE
Unit Code Dimensions to Hole Centres (mm)
A B C D
XBC10HA-***-*** 240 258 367 22
XBC15HA-***-*** 240 258 367 22
XBC25HA-***-*** 322 273 491 22
XBC45HA-***-*** 380 291 552 22
XBC55HA-***-*** 450 418 608 22
XBC65HA-***-*** 600 418 608 22
11 Flange Connector

8
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.8 Attenuator Dimensions & Weights
12 Attenuator Dimensions & Weights
A
B2 C
Plan view Side view
End view
B1
HE HS
Attenuator
Code
Dimensions (mm) Attenuator
Weights
A B1 B2 C (kg)
XBC15-HS-MS10* 1050 347 220 30
XBC15-HE-MS10* 1050 238 220 24
XBC15-HS-MS12* 1250 347 220 35
XBC15-HE-MS12* 1250 238 220 29
XBC15-HS-MS16* 1600 347 220 44
XBC15-HE-MS16* 1600 238 220 36
XBC25-HS-MS10* 1050 471 302 29
XBC25-HE-MS10* 1050 252 302 29
XBC25-HS-MS12* 1250 471 302 34
XBC25-HE-MS12* 1250 252 302 34
XBC25-HS-MS16* 1600 471 302 42
XBC25-HE-MS16* 1600 252 302 42
XBC45-HS-MS10* 1050 531 360 32
XBC45-HE-MS10* 1050 270 360 32
XBC45-HS-MS12* 1250 531 360 40
XBC45-HE-MS12* 1250 270 360 37
XBC45-HS-MS16* 1600 531 360 47
XBC45-HE-MS16* 1600 270 360 47
XBC55-HS-MS10* 1050 588 430 32
XBC55-HE-MS10* 1050 398 430 36
XBC55-HS-MS12* 1250 588 430 37
XBC55-HE-MS12* 1250 398 430 42
XBC55-HS-MS16* 1600 588 430 47
XBC55-HE-MS16* 1600 398 430 52
XBC65-HS-MS10* 1050 588 580 43
XBC65-HE-MS10* 1050 398 580 46
XBC65-HS-MS12* 1250 588 580 51
XBC65-HE-MS12* 1250 398 580 54
XBC65-HS-MS16* 1600 588 580 63
XBC65-HE-MS16* 1600 398 580 67
2 attenuator flange connections are attached to every unit. Add 60mm to
dimension 'A' to include both flanges for standard (no roof) units.

9
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.9 90° Bend Attenuator Dimensions & Weights
13 Attenuator Dimensions & Weights
Side view
Plan view
HS-MBS-S HS-MBS-L
HE-MBS-L HE-MBS-S
HS HE HS HE
A
B
C
D
H
I
F
XBC
Connection
C C
Duct
Connection
Duct
Connection
XBC
Connection
E
G
Attenuator
Code
Unit Dimensions (mm) Attenuator
Weights
A B C D E F G H I (kg)
XBC15-HS-MBS-S 515 496 322 515 496 260 220 386 346 20
XBC15-HS-MBS-L 852 833 659 515 496 260 220 386 346 29
XBC15-HE-MBS-S 406 387 268 406 387 260 220 277 237 14
XBC15-HE-MBS-L 852 833 714 406 387 260 220 277 237 23
XBC25-HS-MBS-S 640 621 385 640 621 342 302 511 471 32
XBC25-HS-MBS-L 992 973 737 640 621 342 302 511 471 44
XBC25-HE-MBS-S 421 402 275 421 402 342 302 292 252 17
XBC25-HE-MBS-L 992 973 846 421 402 342 302 292 252 32
XBC45-HS-MBS-S 700 681 415 700 681 400 360 571 531 39
XBC45-HS-MBS-L 1070 1051 785 700 681 400 360 571 531 55
XBC45-HE-MBS-S 439 420 284 439 420 400 360 310 270 19
XBC45-HE-MBS-L 1070 1051 915 439 420 400 360 310 270 38
XBC55-HS-MBS-S 756 737 443 756 737 470 430 627 587 48
XBC55-HS-MBS-L 1253 1234 940 756 737 470 430 627 587 72
XBC55-HE-MBS-S 566 547 348 566 547 470 430 437 397 31
XBC55-HE-MBS-L 1253 1234 1035 566 547 470 430 437 397 58
XBC65-HS-MBS-S 756 737 443 756 737 620 580 627 587 54
XBC65-HS-MBS-L 1253 1234 940 756 737 620 580 627 587 82
XBC65-HE-MBS-S 566 547 348 566 547 620 580 437 397 36
XBC65-HE-MBS-L 1253 1234 1035 566 547 620 580 437 397 68
Coding:
HS - Denotes the type of silencer required for the supply or discharge.
HE - Denotes the type of silencer required for the extract or intake.
Note: XBC15 silencers are also suitable for XBC10 units.

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.10 Unit Installation
The ventilation unit must be installed first, with consideration
made for the length of the associated attenuators.
Installation of these units, including all external services and
controls should be performed in accordance with all appropriate
site procedures, and MUST conform to all governing regulations
e.g. CDM, CIBSE, IEE, and in strict accordance with the applicable
Building Regulations.
The correct installation position for the units shall be decided with
due regard to access and maintenance requirements, and the
objective of minimising the system ductwork resistance.
The recommended installation method is to use standard Unistrut
channel secured to the slab / steelwork above the unit.
Four suitable drop rods should be secured to the Unistrut channel
and extended to be fixed to the unit’s four mounting brackets,
(two each side of the fan unit) or to other horizontal supports by
others where wider load distribution is required.
3.11 Attenuator Installation
It is recommended that additional Unistrut channels are used
to support the matched attenuators. M8 Drop rods should be
secured to the Unistrut channel and extended to be fixed to the
four piece support brackets to be used on the underside of the
attenuators (Figure 15).
Note – once the attenuators are supported and levelled, and
immediately before securing the attenuator to the attenuator
flange connector, remove the backing from the Foam Sealing
Strip.
The attenuators must be secured to the unit using the screws
provided.
14 Unit Installation
•Unistrut channel secured to suitable
supporting structure above the unit.
•Secure the four drop rod suspension
system from the Unistrut channel
into position through the fan unit's
mounting brackets (2 each side,
Figure 8).
15 Attenuator Installation Attenuators are secured to the main unit using
the flange connector on each end of the unit,
once installed.
•Unistrut channel secured to suitable
supporting structure above the unit.
•Secure the drop rod suspension system from
the Unistrut channel into position.
•Remove attenuator spigot flange from XBC
unit via 4 corner screws for attenuator fitting.
•Remove the backing of the foam connector
sealing strip from the attenuator before
connecting to the flange.
•Secure the attenuators to the flange before
fitting back to unit.
•Raise the attenuators and flange spigot back
to unit and fix with 4 corner screws.
•Fix brackets to drop rods to support
attenuators
•Use the 2 x Ø5.3mm holes on the attenuator
brackets to position attenuator and fix self
tapping screws in position.

11
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.12 Weatherproof Kit Installation (If Supplied Separate-
ly)
Having installed the ventilation unit and attenuators, the
Weatherproof Roof can now be installed if required.
The Roof assembly and control cover must be secured to the unit
using the fixing channel provided.
When the roof has been installed onto the fan unit please ensure
that the edges of the roof are fully sealed where it joins the fan
unit. This does not apply to the control cover as this will have to
be removed if necessary.
3.12.1 Weatherproof Kit Components
Item Description Quantity
A Roof Assembly 1
B Control Cover 1
C Roof Fixing Bracket 4
DControl Cover Fixing
Channel 2
3.12.2 Optional Exhaust & Intake Terminals
Item Description Quantity
E Exhaust Terminal 1
F Intake Terminal 1
3.12.3 Terminal Part Codes
Unit Size Exhaust Terminal Intake Terminal
10 XBC10-EXHAUST-RT XBC10-INTAKE-RT
15 XBC15-EXHAUST-RT XBC15-INTAKE-RT
25 XBC25-EXHAUST-RT XBC25-INTAKE-RT
45 XBC45-EXHAUST-RT XBC45-INTAKE-RT
55 XBC55-EXHAUST-RT XBC55-INTAKE-RT
65 XBC65-EXHAUST-RT XBC65-INTAKE-RT
16 Weatherproof Kit Installation
3.13 Motorised Dampers
If matched silencers of the same length (e.g. XBC15-HS-MS16 and
XBC15-HE-MS16) are being fitted to the fan unit, the motorised
damper (e.g. XBC15-MD-CO and XBC15-MD-CO-WP) should to be
fitted after the silencers (Figure 17) to ensures that breakout noise
levels are kept to a minimum.
Where unmatched silencers are being fitted to the fan unit, the
motorised damper should to be fitted before the silencers.
The motorised damper units will be supplied loose and are
designed to fit directly onto the flange connector (by others). The
dampers feature fully interlocking parallel blades with a half inch
diameter electroplated mild steel spindle. Nylatron bushes and
external nylon/aluminium blade interconnection linkage. Fitted
with Belimo SM24A-S open/close actuator complete with switch.
Motorised damper wiring will require connection on site and
possible extension of the cable looms.
17 Motorised Damper Installation
Fan unit
165mm deep
Motorised Damper
Fan unit
Silencers
Motorised Damper
Belimo SM24A-S drive open/drive close
actuator complete with switch.
Belimo SM24A-S drive open/drive close
actuator complete with switch.
165mm deep

12
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
3.14 Constant Pressure (CP) Setup
Where applicable constant pressure sensors are supplied to
control the static pressure at the extract fan inlet.
This set up is suitable for the majority of applications. When
ancillaries with high pressure losses are fitted to the inlet side of
the fan, the low pressure tapping must be moved from the fan
chamber to a location upstream of the ancillaries, as shown below
in Figure 20.
Failure to do this will result in excessive pressure being applied
to the dampers at the rooms when the system is running in trickle
mode.
3.15 Filter Pressure Switch
XBC units come with pre fitted pressure tappings for use with the
dirty filter alarms (supplied loose) on both the supply and extract
air streams. The IP54 pressure switch is equipped with a red
visual LED alarm which will illuminate when the pressure reading
surpasses that set by the adjustable knob.
3.15.1 Mounting Pressure Switch
Using the four mounting lugs provided, mount the pressure
switches to a flat vertical surface using fixings appropriate for
the surface. Any fixings used must have a maximum diameter of
8.0 mm. Do not tighten the fixings so much that the base of the
device is deformed.
3.15.2 Connecting Pressure Tubing
Pressure tubing must not be kinked. Pay particular attention to
this point if running hoses over an edge, it is better to form a
loop.
For connection to the pressure switch, two fittings inherent in the
housing are provided for hoses with an internal diameter of 6.0
mm.
•Connect a hose from the after filter (AF) pressure tapping
to socket P1 which is located on the lower section of the
housing.
•Connect a hose from the before filter (BF) pressure tapping
to socket P2 which is located on the middle section of the
housing.
After you have installed the hoses, it is essential to check them
for tightness of fit at the connection points and to make sure
that they run without any kinks.
3.15.3 Setting Switch Pressure
Make absolutely certain that there is no voltage on the electrical
connections before you carry out any setting on the pressure
switch, there is the possibility of an electric shock if you
accidentally touch live parts.
Nuaire recommend the pressure switch be set to trigger when
the filters experience a 125 Pa increase above the clean filter
resistance for the largest commissioned airflow rate. Use the
adjustment dial to set the pressure at which the switch will trip.
When the pressure falls below this set value, the switch returns to
its resting position.
3.15.4 Switch Wiring
The cable gland is designed for cables with alternative sheath
diameters of 7 mm or 10 mm. Only use these sizes. Otherwise the
screw cable connection cannot seal adequately. The connections
are intended for 6.3mm crimp-type sockets.
Remove switch cover. Wire the main unit to the terminal block
within the switch as per the below wiring diagrams (Figure 18)
ensuring the feed line is fused to suit Max 1.5A / 250 Vac. Refit
switch cover.
18 Sensor Diagram 230V
Schematic Diagram
Pressure Sensor Internals
2 - NO
3 - C
1 - NC
3 - C Contacts 2 - NO
when the dierence be-
tween positive & negative
pressure
is equal to the set pres-
sure.
Customer 230V
Connection
Customer 230V
Connection
Internal Connection
Customer Connection
*Note 1: NC has been
blanked o.
*Note 2: Pressure setting
of 125Pa above clean filter
pressure is recommended.
*Note 3: If a dierent
arrangement is required,
then the internal LED
connections can be
removed.
230V
Indicator
240 V
Indicator
2 - NO
1 - NC
*Note 2
*Note 3
*Note 1
Dierential
Pressure
Setting
3 - C
Schematic Diagram
Internal Connection
Customer Connection
Pressure Sensor Internals
2 - NO
1 - NC
3 - C
XBC25-85 Connect
Inside XBC Controls
*Note 1: NC has been blanked o.
*Note 2: Pressure setting of
125Pa above clean filter
pressure is recommended.
IN5 IN6 IN7 IN8
OR
IN9 Supply Filter ICOM7-12 IN10 Extract Filter IN11 IN12 24V~ COM
3 - C Contacts 2 - NO when the dierence
between positive & negative pressure is
equal to the set pressure.
2 - NO
3 - C
1 - NC
*Note 2
Dierential
Pressure
Setting
*Note 1
XBC25-85 Connect
Inside XBC Controls
IN5 IN6 IN7 IN8
OR
IN9 Supply Filter ICOM7-12 IN10 Extract Filter IN11 IN12 24V~ COM
19 Sensor Diagram Alarm Feedback 24V AC

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
Riser
Ancillaries
Riser
Inlet
e.g. Silencer
Pressure
Balancing
Branch
Damper Balancing
Branch
Damper
Extract Fan
To atmosphere
Sensor
High Low
Pressure
Flexible tubing
New Pressure Tapping
Airflow
20 Constant Pressure Duct Tapping Locations
CP - Constant
Pressure Tapping
BF - Before Filter
Pressure Tapping
BF - Before Filter
Pressure Tapping
AF - After Filter
Pressure Tapping
AF - After Filter
Pressure Tapping
21 Pressure Tapping Layout (Left Hand Unit)
CP - Constant
Pressure Tapping
BF - Before Filter
Pressure Tapping
BF - Before Filter
Pressure Tapping
AF - After Filter
Pressure Tapping
AF - After Filter
Pressure Tapping
22 Pressure Tapping Layout (Right Hand Unit)
23 Coil & Condensate Drain Connections (Left Hand Unit)
Condensate drain connection
8 mm flexible pipe
Control box
Coil connections
40mm centres Access to Condensate tray
and Pump.

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14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
4.0 PRE-COMMISSIONING
Isolation - Before commencing work, make sure that the unit,
switched live and Nuaire control are electrically isolated from
the mains supply.
4.1 Filters
Remove filter access panels (observe and note airflow direction
labels), inspect filters for contamination with construction debris,
replace as necessary. Replace access panels.
Filter pressure drops will depend on actual flow rate and
condition. 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 manometers, pressure switches or indicators have been
fitted, they should be set or adjusted to reflect the commissioned
system operation.
4.2 Heating Coils (LPHW)
Observe the Flow and Return connection labels on the unit. Drain
and bleed valves are located on the coil. Other valves may be
required in the system pipe-work depending on the installation
(by others).
Where the wet system is at risk of frost damage, the
addition of a proprietary anti-freeze solution to the water
is recommended. Any frost protection oered by the unit’s
integral control system will not operate if the power supply to
the unit is interrupted.
Frost protection is activated on any unit fitted with LPHW heating,
when the outlet air temperature is 4ºC or below. The unit reacts
by shutting down the fan to prevent a ‘wind chill’ eect reducing
the temperature to a point whereby the coil could freeze and
burst. The unit will also drive open the LPHW valve to a fully open
position to allow full water flow through the coil and the main PCB
will close the ‘Heat demand’ contacts. These contacts could be
used to send a signal to activate the boiler and/or valve to open
to provide heat if not already doing so.
Piped connections should be made to the unit using appropriate
techniques, and all pipework must be independently supported.
No hot work is permitted within one metre of the unit.
Ensure that installed pipework runs do not prevent or restrict
access to the unit at any point.
The completed installation (including the connections within
the unit, as these may be disturbed during installation) shall be
pressure tested to the project engineer’s specification (This is a
condition of the unit warranty).
4.3 Fan Sections
Access to the fan section is via lift o panels (Figures 1 & 23).
With the unit electrically isolated, rotate the fan impeller / drive
manually, checking that it spins freely. Check all fixings are
secure.
Units must not be operated without all access panels in place
– damage to equipment or injury to personnel may result. Units
must not be operated unless control interlocks are in place –
damage to equipment may result.
Test run motor for condition and correct rotation. Check that the
correct current overloads are fitted and that the current being
drawn does not exceed the motor nameplate value. Excessive
current normally indicates that the ductwork system resistance is
dierent to design.
5.0 ELECTRICAL INSTALLATION
The electrical wiring must be carried out by competent persons,
in accordance with good industry practice and should conform to
all governing and statutory bodies i.e. IEE, CIBSE, COHSE etc.
5.1 Electrical Supply
The control is powered by a 240Vac 50Hz supply. This must be
isolated local to the unit and fitted with appropriate overcurrent
and fault protection.
5.1.1 Electric Heater Supply
For models with electric heating, the heating circuit is powered by
a separate, higher current, 240VAC supply. This must be isolated
local to the unit and fitted with appropriate overcurrent protection.
The main supply is still required.
5.1.2 Electrical Supply Details - FLC
Unit Without Electric
Heater Unit With Electric Heater
Unit Code FLC Unit Code Fan
FLC Heater
XBC10HA-(N/L)** 3.0 A XBC10HA-E** 3.0 A 6.3 A
XBC15HA-(N/L)** 4.0 A XBC15HA-E** 4.0 A 12.5 A
XBC25HA-(N/L)** 8.0 A XBC25HA-E** 8.0 A 18.8 A
XBC45HA-(N/L)*** 6.0 A XBC45HA-E** 6.0 A 18.8 A
XBC55HA-(N/L)** 6.0 A XBC55HA-E** 6.0 A 37.5 A
XBC65-HA-(N/L)** 6.0 A XBC65HA-E** 6.0 A 37.5 A
5.2 Emergency Shut Down Circuit
Emergency Shutdown Circuit. Break to Remove power. Remove
wire between LS & L to use.
5.3 Volt Free Contacts
The volt free contacts are not fused. If these are used to power
any external equipment, the installer must provide adequate
fusing or other protections.
Fault - The relay is unpowered when a fault is present.
Heat Demand - The relay is powered when heating is selected.
Cool Demand - The relay is powered when cooling is selected.
5.4 Damper Connections
A fan start delay can be imposed to allow the damper time to
open. This is adjustable via display screens or commissioning
tools.
If an I/O damper is fitted, it must be wired to the fan run relay, and
the relay supplied with the relevant supply voltage (See full wiring
diagrams for details).
5.5 Network Settings
Default MS/TP Address: 4
BACnet Instance Number: Randomised and unique for each
controller (0 to 41164,304)

15
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
5.6 Connection Chart
Description Controller Terminal No DI AI Relay
Output
AO (0-10v)
Supply Fan Fault IN1 1
Extract Fan Fault IN2 1
IO Damper Alarm IN3 1
Condensate Pump Fault IN4 1
SL Enable IN5 1
SL2 Input IN6 1
EH Overtemp Fault (If Present) IN7 1
Tacho Alarm Feedback (If
Present)
IN8 1
Thermal Wheel Fault IN11 1
Fresh Air Temp Sensor IN13 1
Supply Air Temp Sensor IN14 1
Return / Room Air Temp Sensor IN15 1
Configurable Input 16 IN16 1
Configurable Input 17 IN17 1
Extract Fan Output OUT1 1
Supply Fan Output OUT2 1
Heating Output OUT3 1
Cooling Output OUT4 1
Bypass Damper Cmd OUT6 1
Cooling Demand Cmd OUT7 1
Heating / Recirc Cmd OUT8 1
Fault Relay Cmd OUT9 1
Fan Enable Cmd OUT10 1
5.7 Terminal Connections
5.7.1 Push In Termination
Stripped solid conductors, fine-stranded conductors with ferrules,
or ultrasonically “bonded” conductors are simply pushed in until
they hit the backstop, no tool is required.
24 Push in Termination
5.7.2 Termination Of Fine Stranded Conductors
Open the clamp by inserting an operating tool (as shown below)
until it clicks into position. Then insert the conductor and remove
the operating tool to complete the connection.
25 Fine Stranded Termination
5.7.3 Conductor Removal
Insert an operating tool in to the operating slot to remove the
conductor, just like the original CAGE CLAMP® terminals blocks.
26 Conductor Removal

16
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
5.7.4 Fitting Jumpers
Terminal blocks can be connected together to increase the
number of terminals at the same potential using push-in jumpers.
In these cases the terminals are treated as one conductor.
27 Fitting Jumpers
5.7.5 Jumper Removal
Insert the operating tool blade between the jumper and the
partition wall of the dual jumper slots, then lift up the jumper.
28 Jumper Removal
5.8 Unit Hardware Positions Diagram
Supply
Extract (Option 2)
Extract (Option 1)
Discharge
Inlet (Option 1)
Inlet (Option 2)
A
C
B
D
E
G
F
H I
29 Hardware Positions
5.8.1 Hardware Position Key
A) Supply fan (drive & health)
B) Delivery air temperature sensor
C) Extract air temperature sensor
D) Re-heater trip (electric heater models only)
E) LPHW re-heat drive (LPHW models only)
F) Bypass damper drive
G) Condensate pump alarm
H) Fresh air temperature
I) Extract fan (drive & health)

17
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
5.9 Customer Wiring
5.9.1 XBC10-15 Units with No / LPHW Heating
Creation Date
Description
Part Number Checked Date
Checked By
Page
D C B A
REV Date Description
1 of 3
7713704
XBC [10-15] Connect (PEAK) NH/LPHW Controls
28/09/2023 04/05/2023 R Flaherty
24/06/21 First Issue 09/08/21 Changed Conections to suit Peak 27/05/22 Linked out Filter fault alarms to keep filter sensors same. 04/05/23 Added AFS wiring to Looms B10-12 & D10-12
30 Customer Wiring - XBC10-15 Units with No / LPHW Heating

18
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
5.9.2 XBC10-15 Units with Electric Heating
Creation Date
Description
Part Number Checked Date
Checked By
Page
D C B A
REV Date Description
1 of 3
7713706
XBC [10-15] Connect (PEAK) EH Controls
28/09/2023 04/05/2023 R Flaherty
24/06/21 First Issue 09/08/21 Changed Conections to suit Peak 30/05/22 Linked out Filter fault alarms to keep filter sensors same. 04/05/23 Added AFS wiring to Looms B10-12 & D10-12
31 Customer Wiring - XBC10-15 Units with Electric Heating

19
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
5.9.3 XBC25-65 With No / LPHW Heating
32 Customer Wiring - XBC25-65 With No / LPHW Heating
Creation Date
Description
Part Number Checked Date
Checked By
Page
C B A
REV Date Description
1 of 3
7713705
XBC [25-65] Connect (PEAK) NH/LPHW Controls
28/09/2023 30/05/22 A Plimmer
24/06/21 First Issue 09/08/21 Changed Conections to suit Peak 30/05/22 Linked out Filter fault alarms to keep filter sensors same.

20
14. 11. 23. Document Number 672068
Nuaire | Western Industrial Estate | Caerphilly | CF83 1NA | nuaire.co.uk
XBC+ Ecosmart Connect (C) Control
Installation Manual
5.9.4 XBC25-65 With Electric Heating
Creation Date
Description
Part Number Checked Date
Checked By
Page
C B A
REV Date Description
1 of 3
7713707
XBC [25-65] Connect (PEAK) EH Controls
28/09/2023 30/05/22 A Plimmer
24/06/21 First Issue 09/08/21 Changed Conections to suit Peak 30/05/22 Linked out Filter fault alarms to keep filter sensors same.
33 Customer Wiring - XBC25-65 With Electric Heating