Nuaire recommend that attenuators have breakout
protection and that flexible connectors are fitted at inlet
attenuator entry and outlet attenuator exit.
1
Nuaire Limited
Western Industrial Estate Caerphilly United Kingdom CF83 1NA
T: 029 2088 5911 F: 029 2088 7033 E: [email protected] W: www.nuaire.co.uk
26. 01. 17. Leaflet Number 671340
The EMC Directive
2014/30/EU
The Low Voltage
directive
2014/35/EU
SQURBO XBOX
Units S1 - S6 - XB
Supply & Extract fans with Heat Recovery
Installation and Maintenance
SQURBO XBOX. Packaged Supply and
Extract fans with Heat Recovery
The units comprise of an extract and supply fan with associated
air filter, a plate heat exchanger and optional supplementary
heater (either electric or LPHW). The unit is normally supplied
with Ecosmart control for automated operation.
Units without controls are also available and are identified by
the letters ‘NC’ after the unit size. The installer must select and
fit suitable control equipment to produce the desired output.
This includes the valve, actuator and water circuit needed to
control any LPHW coil fitted.
1.0 Coding
The coding structure is:
(e.g. S5 - XB - RE)
S 1 - 6-XB (NC) - R/L - E/L/N
Unit Size
No Control Option
Right or Left Handing
Electric or LPHW or No Heater
1.1 Handling
Always handle the units carefully to avoid damage and
distortion. Care must be taken to ensure that any slings used
for hoisting or lifting equipment employed does not damage
the casing or the control module components.
1.2 Unit Installation
The installation, including all external services and controls
should be installed in accordance with the appropriate authority
and must conform to all governing regulations e.g. CDM, CIBSE,
IEE, and in strict accordance with the applicable Building
Regulations.
The fan must be fitted indoors, on a secure surface, away
from sources of water spray or steam generation. The fan is
installed by using drop-rods and bearers (by others figure 1).
Consideration must be given when supporting the unit that
access is still available for maintenance purposes and removal
of filters.
Note that the unit is only suitable for horizontal mounting.
1.3 Access for Maintenance
A
B
+
C
F
G
+
D
E
A
B
C
Component location (fig.2)
A
Extract Fan
B
Condensate tray**
C
Heater
D
Supply Filter*
E
Supply Fan and Heat
Exchanger
F
Controls (if fitted)
G
Extract Filter *
H
Condensate pipe
* regular maintenance required.
** regular maintenance may be
required (dependant on
installed conditions).
Other components are unlikely
to need attention on a regular
basis. Access space around
the unit is recommended as
being a minimum of 600mm.
(see Approved Document
F1 - 2006 sections 2.6, 2.7).
Figure 1. Typical installation of the unit.
Figure 2. Plan view: Maintenance access is from one side only
(Control box side). Access to extract fan, LPHW connection and
condensate drain is on the opposite side.
Right Hand
Left Hand
Discharge
Supply
Fresh air
intake
*
Fresh air
intake
*
Discharge
Supply
Extract
Extract
For systems which
include supply fans
with heating
other than where the
BMS (0-10V) has
control, the
appropriate user
control is required.
Note: Ensure the access panels are not obstructed.
*
Ensure the fresh air intake is located well away from the exhaust
of this or any other system.
