NuAire Ecosmart Squrbo Series Instruction Manual

1
Nua re L m ted Western Industrial Estate Caerp illy United Kingdom CF83 1NA
T: 029 2085 8400 F: 029 2085 8444 E: [email protected] W: www.nuaire.co.uk
Ecosmart Squrbo Fans
Squrbo s ngle phase d rect dr ve fans are suppl ed w th
or w thout heaters and the range ncludes:
ESS* Ecosmart Supply Fans
ESS*-E Ecosmart Supply Fans w th Electr c Heater
ESS*-L Ecosmart Supply Fans w th LPHW Heater
ESSE* Ecosmart Extract Fans
*denotes un t s ze 1, 2, 3, 4 and 5.
Handl ng
Always andle t e units carefully to avoid damage and distortion.
Care must be taken to ensure t at any slings used for oisting do
not damage t e casing or t e control module components.
1.0 Fan Installat on
T e fan must be fitted indoors, on a secured surface, away from
sources of water spray or steam generation. T e fan can be
installed using t e integral mounting bracket supplied (Figure 1)
or using drop-rods (by ot ers Figure 2).
2.0 D mens ons (mm)
21. 10. 16. Leaflet Number 671169
Figure 2.
Installation using drop-rods.
Figure 1a.
ECOSMART
SQURBO
Installation and Maintenance
D
C
50
A
G
H ctrs
50
A
B
E
F
D
J
20
Supply Extract D mens ons (mm)
d a f x ng ctrs We ght
Un t Code ABCDEFGHJ(kg)
ESS1/ESSE1 160 230 640 125 150 150 330 140 115 7.4
ESS2/ESSE2 185 302 630 150 150 150 330 140 150 8.1
ESS3/ESSE3 235 350 700 200 150 150 330 140 170 13.0
ESS4/ESSE4 285 350 672 250 150 150 330 140 170 13.8
ESS5/ESSE5 350 400 726 315 150 150 330 140 200 15.2
ESS6/ESSE6 430 682 700 400 175 150 330 140 453 35
Supply + Electr c Heater D mens ons (mm)
d a f x ng ctrs We ght
Un t Code ABCDEFGHJ(kg)
ESS1-E 160 230 968 125 150 150 403 140 115 12.1
ESS2-E 185 302 968 150 150 150 403 140 150 14.5
ESS3-E 235 350 968 200 150 150 403 140 170 21.5
ESS4-E 285 350 968 250 150 150 403 140 170 23.4
ESS5-E 350 400 968 315 150 200 450 140 200 27.1
ESS6-E 430 682 1002 400 175 200 450 140 453 52
Mounting bracket to structure
fixings.
Bracket tongues must
engage wit case slots.
Bracket tongues engage wit case slots, t en case
rotated up to align wit fixing screw ole.
Supply + LPHW Heater D mens ons (mm)
d a f x ng ctrs We ght
Un t Code ABCDEFGHJ(kg)
ESS2-L 285 450 968 150 150 170 515 140 250 25
ESS3-L 285 450 968 200 150 170 515 140 250 25
ESS4-L 285 450 968 250 150 170 515 140 250 26
ESS5-L 350 450 968 315 150 170 515 140 250 29
ESS6-2L 430 682 1002 400 175 170 515 140 453 52
For systems
wh ch nclude
supply fans
w th heat ng
co ls, other
than where
the BMS has
control, the
appropr ate
user control
s requ red.
The EMC D rect ve
2014/30/EU
The Low Voltage
d rect ve
2014/35/EU
Figure 1b.

Isolat on - Before commenc ng work make sure
that the un t, and Nua re control are
electr cally solated from the ma ns supply.
3.0 W r ng
T e electrical wiring must be carried out by competent persons, in
accordance wit good industry practice and s ould conform to all
governing and statutory bodies i.e. IEE, CIBSE, COHSE etc.
Connect ons
a) Control Connect ons
Net - t e 4 IDC plug-in connectors are provided for t e connection
of compatible sensors, manual controls and for linking t e fans
toget er under a common control. If more t an 4 connections are
required, t e junction box (product code ES-JB) s ould be used
(see data cable installation).
Sw tch L ve (SL) term nal - A signal of 100-230V a.c. will activate
t e fan.
Note that a s gnal from an solat ng transformer w ll produce
an unpred ctable result and s not recommended.
b) Damper Connect ons
OP - 230V 50Hz 1A max supply to open t e damper
CL - 230V 50Hz 1A max supply to close t e damper
N- Neutral supply to damper
RET - 230V ac return signal from t e damper limit switc indicates
t e damper as reac ed its operating position. If t e return signal
is not present, t e fan will wait for 1 minute before starting.
Note: If a damper s not f tted, connect a l nk w re from OP to
RET. Th s w ll cancel the delay.
c) Volt Free Relay Contacts
Note t at t e volt free contacts are not fused. If t ese are used to
power any external equipment, t e installer must provide adequate
fusing or ot er protections.
T ese contacts are rated at 5A resistive, 0.5A inductive.
Run connect ons - T ese contacts are closed w en t e fan is
running.
Fault connect ons - No fault = t e contacts are closed.
Fault = t e contacts are opened.
Heat demand - contacts closed w en eating is selected.
d) Data Cable Installat on
A 4-core SELV data cable is used to connect devices.
Do not run data cable in t e same conduit as t e mains cables and
ensure t ere is a 50mm separation between t e data cable and
ot er cables. T e maximum cable run between any two devices is
300m w en it is installed in accordance wit t e instructions.
Please note that the total data cable length used n any system
must be less than 1000m. Keep the number of cable jo nts to a
m n mum to ensure the best data transm ss on eff c ency
between dev ces.
e) Max mum Number of Dev ces
T e maximum number of devices (including fans) t at can be
connected toget er via t e cable is 32, irrespective of t eir functions.
f) Other Low Voltage Cables
Follow t e basic principle (as d). Keep t e cable run as s ort as
possible, less t an 50 metres.
Electr cal Deta ls
221. 10. 16. Leaflet Number 671169
Installat on and Ma ntenance ECOSMART Squrbo Fans
Fans w thout Fans w th
Electr c Heater Electr c Heater
Un t flc Un t flc
Code (amps) Code (amps)
ESS1/ESSE1 0.32 ESS1-E 4.7
ESS2/ESSE2 0.34 ESS-2E 7.0
ESS3/ESSE3 0.72 ESS-3E 9.5
ESS4/ESSE4 0.92 ESS-4E 14.0
ESS5/ESSE5 0.92 ESS-5E 20.5
ESS6/ESSE6 2.95 ESS6-E 20.0
ESS6-2L 2.95
LPHW Coil
15mm dia.
copper pipes
4 port valve Strainer Isolating valves
Return
Flow
Installer connections
Installer connections
Figure 3.
Install ng the
Water C rcu t
It is recommended t at all joints are
c ecked for leaks w en commissioning
and a strainer and isolating valves
are fitted (by ot ers) for ease of
maintenance.
(See figure 3).

321. 10. 16. Leaflet Number 671169
Installat on and Ma ntenance ECOSMART Squrbo Fans
'Net' connection for
Ecosmart devices
RUN FAULT
N
E
L
SL
DP
CL
N
RET
DAMPER
HEAT
DEMAND
Remove link if switched live signal,
an enabler or BMS signal is connected
Damper connection
Heat demand signal
Run signal
Fault signal
Connection for ES - CO2
0 - 10V BMS Signal
L N E
Mains connection
230V 50Hz 1 phase
Heater temperature
setting range 15 - 30 C
'Net' connection for
Ecosmart devices
RUN FAULT
N
E
L
SL
DP
CL
N
RET
DAMPER
HEAT
DEMAND
Remove link if switched live signal,
an enabler or BMS signal is connected
Damper connection
Heat demand signal
Run signal
Fault signal
Connection for ES - CO2
0 - 10V BMS Signal
Mains connection
230V 50Hz 1 phase
W r ng
Figure 4. ESS1 - 5 LPHW and Extract. Figure 5. ESS1 - 5E (Electric Coil).
Connections
to Damper
FAULT RUN
N
L
SL
DP
CL
N
RET
Remove this link wire if:
1. a switched live signal is connected.
2. A ES-PIR, ES-TC or BMS signal
is connected.
NET connections for
ECOSMART devices
Min Max SL run on
Trickle Test
0 1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
Ecosmart
Heat demand
signal
L
N
E
230V 50Hz
1ph mains
Earth
Run signal
Fault signal
HEAT DAMPER DEMAND
0V
0-10V
BMS signal
Speed
Controller
Connections
to Damper
FAULT RUN
N
L
SL
DP
CL
N
RET
Remove this link wire if:
1. a switched live signal is connected.
2. A ES-PIR, ES-TC or BMS signal
is connected.
NET connections for
ECOSMART devices
Min Max SL run on
Trickle Test
0 1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
Ecosmart
Heat demand
signal
L
N
E
230V 50Hz
1ph mains
Earth
Run signal
Fault signal
HEAT DAMPER DEMAND
Set air off
temperature.
of LPHW COIL
0V
0-10V
BMS signal
Speed
Controller
Connections
to Damper
FAULT RUN
N
L
SL
DP
CL
N
RET
Remove this link wire if:
1. a switched live signal is connected.
2. A ES-PIR, ES-TC or BMS signal
is connected.
NET connections for
ECOSMART devices
Min Max SL run on
Trickle Test
0 1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
Ecosmart
Heat demand
signal
L3
L2
L1
N
E
400V 50Hz
3ph +N mains
supply for fan
and heater
Earth
Run signal
Fault signal
HEAT DAMPER DEMAND
Adjustment for air off temperature.
Do not set temperature above
30OC
Electric heater control
0V
0-10V
BMS signal
Speed
Controller
Figure 6. ESS6 and ESSE6 (No Heater). Figure 7. ESS6 - L (LPHW Coil).
Figure 8. ESS6 - E (12kW Electric Coil).

421. 10. 16. Leaflet Number 671169
Installat on and Ma ntenance ECOSMART Squrbo Fans
4.0 Sett ng to Work
Us ng the Test Button
T e test button allows t e individual blowers wit in t e unit to be
c ecked for its operation. If t e fan is running already, press t e
button once to stop t e fan, press again to switc on t e fan.
Note that the fan w ll return to normal operat on after
30 seconds.
LED Ind cat on
PWR GREEN: Power on & OK,
Standby LED on when fan s not runn ng.
Fan 1 GREEN: Fan 1 s runn ng, RED: Fan 1 faulty.
Fan 2 GREEN: Fan 2 s runn ng, RED: Fan 2 faulty.
Heat ng* GREEN: Heat ng selected RED: Heat ng faulty.
Cool ng* Not appl cable. See note.
Fault LED on when a fault s present on un t.
Frost alarm - contacts close when a r off temperature s 40C
or below. Fan shuts down, valve opens and the heat demand
contacts act vated.
Tx LED on when the controller s transm tt ng data.
Rx LED on when the controller s rece v ng data.
* Note that the control panel s common to all the Ecosmart
products and w ll have nd cators for funct ons that are not
ava lable n th s part cular fan. However these nd cators w ll
not be llum nated.
BMS Input S gnals
T e system’s response to a 0-10V dc BMS signal is given in t e
following table.
Note the BMS s gnal w ll overr de any sensors and user control
connected n the system. The voltage tolerance s +/_ 125mV
and s measured at the fans term nal.
Vent lat on mode Cool ng mode* Heat ng mode*
Local control 0.00 --
OFF / trickle 0.25 --
Speed 1 0.50 0.75 1.00
Speed 2 1.50 1.75 2.00
Speed 3 2.50 2.75 3.00
Speed 4 3.50 3.75 4.00
Speed 5 4.50 4.75 5.00
Speed 6 5.50 5.75 6.00
Speed 7 6.50 6.75 7.00
Speed 8 7.50 7.75 8.00
Speed 9 8.50 8.75 9.00
Speed 10 9.50 9.75 10.00
* Only ava lable on relevant un t
Sett ngs
Sett ng the max mum a r flow
ii) Ensure t e power supply is switc ed off and t at a link wire is
connected from t e supply L to t e SL terminal. Unplug all items
connected to t e ‘Net‘ connectors.
ii) Switc on t e power supply.
iii) Wait for t e fan to complete its self-test operation.
Measure t e airflow using standard commissioning instruments at
a suitable point in t e ductwork. If adjustment is required, rotate
t e pot marked ‘MAX’ to obtain t e desired airflow.
Sett ng the m n mum tr ckle a rflow (nom nal 40%)
i) Repeat t e same procedure as for maximum airflow above but
wit out t e link wire between supply L and SL terminal. Ensure t e
trickle switc is in t e ‘ON’ position. Adjustment must be made on
t e pot marked ‘Min’.
ii) Note t at t e minimum setting (nominally 40%) must be below
t e maximum setting, ot erwise minimum setting will be auto-
matically set to be t e same as t e maximum.
Sett ng the overrun t me
A switc ed live of 100-230V at terminal SL will activate t e fan.
W en t e switc ed live signal is removed t e fan will overrun for
period set by t e dial ‘SL run on’ - adjust t e desired overrun time
by rotating clockwise.
Sett ng the tr ckle vent lat on fac l ty
Slide t e ‘trickle’ switc 0 = Off, 1 = On. Wit ’trickle’ on and power
to unit t e fan will run at minimum speed until t e switc live
signal activates it to boost.
Sett ng the ‘a r off’ temperature
T e adjustment knob is located in t e control pack and must be set
to t e desired ‘air off’ temperature.
Figure 9.
MIN = Minimum speed adjustment
MAX = Maximum speed adjustment
SL
Run on = Switched Live Run-On
Timer adjustment
TRICKLE = Selects trickle running:
0 = off, 1 = selected
TEST = Test button
LED indicators
Min Max SL run on
Trickle Test
0 1
Pwr
Standby
Fan 1
Fan 2
Heating
Cooling
Fault
Frost
Tx
Rx
Ecosmart
Connector
Isolat on - Before commenc ng work make sure
that the un t, and Nua re control are
electr cally solated from the ma ns supply.

521. 10. 16. Leaflet Number 671169
Tec nical or commercial considerations may, from time to time, make it necessary to alter t e design, performance and
dimensions of equipment and t e rig t is reserved to make suc c anges wit out prior notice.
5.0 Ma ntenance
T e first maintenance s ould be carried out t ree mont s after
commissioning and t ereafter at twelve mont ly intervals.
T ese intervals may need to be s ortened if t e unit is operating
in adverse environmental conditions, or in eavily polluted air.
Lubr cat on
Motors are fitted wit sealed for life bearings and do not require
any lubrication.
General Clean ng and Inspect on
Clean and inspect t e exterior of t e fan unit and associated
controls etc. Remove t e access panel from t e fan unit.
Inspect and, if necessary, clean t e fan and motor assemblies and
t e interior of t e case. If t e unit is eavily soiled it may be more
convenient to remove t e fan/motor assemblies. C eck all parts
for security and t at t e impeller rotates freely, taking care not to
disturb t e balance. Ensure all control components are secure and
clean, refit all access doors.
F lter care/replacement
T e filter inside t e Ecosmart Squrbo unit will require cleaning on a
regular basis. T e frequency of t e cleaning operation will depend
on t e site conditions.
Note: It s mportant to allow suff c ent t me for the
heater battery to cool down before beg nn ng work.
Clean ng Control Box and Sensors
( f f tted)
Remove covers and carefully clean out interiors as necessary.
C eck for damage and security of components. Refit covers.
6.0 Replacement of Parts
S ould any component need replacing Nuaire keep extensive stocks
for quick delivery. Ensure tat te unit is electrically isolated,
before carrying out any work.
W en ordering spare parts, please quote te serial number of t e
unit and te ARC number of te purc ase if possible.
(Th s nformat on w ll be ava lable on the fan label).
7.0 Warranty
T e 5 year warranty starts from te day of delivery and includes
parts and labour for t e first year. T e remaining period covers
replacement parts only.
This warranty is void if the equipment is modified without
authorisation, is incorrectly applied, misused, disassembled, or
not installed, commissioned and maintained in accordance with
the details contained in this manual and general good practice.
8.0 After Sales Enquiries
For technical assistance or further product information, including
spare parts and replacement components, please contact the
After Sales Department.
Telephone [phone]
Installat on and Ma ntenance ECOSMART Squrbo Fans
Figure 10.
T e filter is located inside t e unit and contained in a bracket as
s own below. Remove the access panel and w thdraw the f lter,
wh ch can now be vacuumed.

621. 10. 16. Leaflet Number 671169
DECLARATION OF INCORPORATION AND INFORMATION FOR SAFE INSTALLATION,
OPERATION AND MAINTENANCE
To comply w th EC Counc l D rect ves 2006/42/EC’ Mach nery D rect ve
and 2014/30/EU (EMC).
To be read n conjunct on w th the relevant Product Documentat on (see 2.1)
1.0 GENERAL
1.1 T e equipment referred to in t is Declarat on of Incorporat on is supplied by
Nuaire to be assembled into a ventilation system w ic may or may not include
additional components.
T e entire system must be considered for safety purposes and it is t e
responsibility of t e installer to ensure t at all of t e equipment is installed in
compliance wit t e manufacturers recommendations and wit due regard to
current legislation and codes of practice.
2.0 INFORMATION SUPPLIED WITH THE EQUIPMENT
2.1 Eac item of equipment is supplied wit a set of documentation w ic provides
t e information required for t e safe installation and maintenance of t e
equipment. T is may be in t e form of a Data s eet and/or Installation and
Maintenance instruction.
2.2 Eac unit as a rating plate attac ed to its outer casing. T e rating plate
provides essential data relating to t e equipment suc as serial number, unit
code and electrical data. Any furt er data t at may be required will be found
in t e documentation. If any item is unclear or more information is required,
contact Nuaire.
2.3 W ere warning labels or notices are attac ed to t e unit t e instructions given
must be ad ered to.
3.0 TRANSPORTATION, HANDLING AND STORAGE
3.1 Care must be taken at all times to prevent damage to t e equipment. Note t at
s ock to t e unit may result in t e balance of t e impeller being affected.
3.2 W en andling t e equipment, care s ould be taken wit corners and edges and
t at t e weig t distribution wit in t e unit is considered. Lifting gear suc as
slings or ropes must be arranged so as not to bear on t e casing.
3.3 Equipment stored on site prior to installation s ould be protected from t e
weat er and steps taken to prevent ingress of contaminants.
4.0 OPERATIONAL LIMITS
4.1 It is important t at t e specified operational limits for t e equipment are
ad ered to e.g. operational air temperature, air borne contaminants and unit
orientation.
4.2 W ere installation accessories are supplied wit t e specified equipment eg.
wall mounting brackets. T ey are to be used to support t e equipment only.
Ot er system components must ave separate provision for support.
4.3 Flanges and connection spigots are provided for t e purpose of joining to
duct work systems. T ey must not be used to support t e ductwork.
4.4 Local Env ronment - Hum d ty. Ambient umidity (t e umidity at t e unit’s
installed location) s all be wit in t e range: 10 to 95% (for controls, non-
condensing).
Air umidity (t e umidity of t e air passing t roug t e unit) s all be wit in
t e range: 10 to 95% (for controls, non-condensing).
5.0 INSTALLATION REQUIREMENTS
In addition to t e particular requirements given for t e individual product, t e
following general requirements s ould be noted.
5.1 W ere access to any part of equipment w ic moves, or can become electr cally
l ve are not prevented by t e equipment panels or by fixed installation detail
(eg ducting), t en guarding to t e appropriate standard must be fitted.
5.2 T e electrical installation of t e equipment must comply wit t e requirements
of t e relevant local electrical safety regulations.
5.3 For EMC all control and sensor cables s ould not be placed wit in 50mm or on
t e same metal cable tray as 230V switc ed live, lig ting or power cables and
any cables not intended for use wit t is product.
6.0 COMMISSIONING REQUIREMENTS
6.1 General pre-commissioning c ecks relevant to safe operation consist of t e
following:
Ensure t at no foreign bodies are present wit in t e fan or casing.
C eck electrical safety. e.g. Insulation and eart ing.
C eck guarding of system.
C eck operation of Isolators/Controls.
C eck fastenings for security.
6.2 Ot er commissioning requirements are given in t e relevant product documentation.
7.0 OPERATIONAL REQUIREMENTS
7.1 Equipment access panels must be in place at all times during operation of t e
unit, and must be secured wit t e original fastenings.
7.2 If failure of t e equipment occurs or is suspected t en it s ould be taken out of
service until a competent person can effect repair or examination. (Note t at
certain ranges of equipment are designed to detect and compensate for fan failure).
8.0 MAINTENANCE REQUIREMENTS
8.1 Specific maintenance requirements are given in t e relevant product documentation.
8.2 It is important t at t e correct tools are used for t e various tasks required.
8.3 If t e access panels are to be removed for any reason t e electrical supply to t e
unit must be isolated.
8.4 A minium period of two minutes s ould be allowed after electrical disconnection
before access panels are removed. T is will allow t e impeller to come to rest.
NB: Care should st ll be taken however s nce a rflow generated at some
other po nt n the system can cause the mpeller to “w ndm ll” even when
power s not present.
8.5 Care s ould be taken w en removing and storing access panels in windy
conditions.
INFORMATION FOR SAFE INSTALLATION, OPERATION AND MAINTENANCE
OF NUAIRE VENTILATION EQUIPMENT
We declare that the mach nery named below s ntended to be assembled
w th other components to const tute a system of mach nery. All parts
except for mov ng parts requ r ng the correct nstallat on of safety guards
comply w th the essent al requ rements of the Mach nery D rect ve. The
mach nery shall not be put nto serv ce unt l the system has been
declared to be n conform ty w th the prov s ons of the EC Mach nery
D rect ve.
Des gnat on of mach nery: ECOSMART SQURBO
Mach nery Types: ESS
Relevant EC Counc l D rect ves: 2006/42/EC (Mac inery Directive)
Appl ed Harmon sed Standards: BS EN ISO 12100, BS EN ISO 13857
EN60204-1, BS EN ISO 9001
Appl ed Nat onal Standards: BS848 Parts 1, 2.2 and 5
S gnature of manufacture representat ves:
Name: Position: Date:
1) C. Biggs Tec nical Director 22. 11. 13
2) A. Jones Manufacturing Director 22. 11. 13
Note: All standards used were current and valid at t e date of signature.

721. 10. 16. Leaflet Number 671169
Notes

821. 10. 16. Leaflet Number 671169
Western Industrial Estate
Caerp illy United Kingdom
CF83 1NA
T: 029 2085 8400
F: 029 2085 8444
E: [email protected]
W: www.nuaire.co.uk