NuAire ESH2 User manual

Nuaire Limited Western Industrial Estate Caerphilly United Kingdom CF83 1NA
T: 029 2085 8400 F: 029 2085 8444 E: [email protected] W: www.nuaire.co.uk
111. 05. 17. Leaflet Number 671181
ESH Ecosmart Heater
The Ecosmart Heater should only be used as a
supplementry heater in conjunction with a
Ecosmart supply fan with integral electric heater.
It must not be used with any other fans.
The heater is a 3kW single phase unit that requires an
independent 230V mains supply to the top mounted
terminal box and is supplied with a pre-plugged 10m length
of communications cable.
This heater will provide additional heat where the desired
temperature cannot be achieved by the supply fan’s integral
heater alone.
Note: the air velocity through the heater section must be
1.5m/s or greater.
Installing the Heater
The Heater must be fitted indoors, away from any water
spray or source of steam.
The heater is installed into the ductwork (by others) using
the fast clamps at the downstream side of the supply fan.
Larger, heavier units should be adequately supported.
ESH Ecosmart
Heaters
Installation Guide
Supply unit with
heater
Temperature sensor
(see locating
temperature probe
overleaf
Figure 2. Ecosmart heater dimensions.
Mains supply
terminals
SELV cable
Figure 1. ESH Ecosmart heater typical system application.
Heater Matched DL
Unit Unit Spigot dia. mm length
ESH2 ESS2-E 150 400
ESH3 ESS3-E 200 400
ESH4 ESS4-E 250 400
ESH5 ESS5-E 315 400
*Dia. D suits matched Ecosmart unit.
Ecosmart heater
The EMC Directive
2014/30/EU
The Low Voltage
directive
2014/35/EU

Wiring in the heater
The heater requires two connections; the SELV
communications cable link up and the 230V mains L,N,E
connection to power the heater element.
Remove the top cover from the terminal box by rotating the
four fixing screws half a turn. The communications cable
(supplied) can now be plugged into the socket marked
Ecosmart NET inside the box. (See fig 3).
The other end of the SELV cable should be plugged into the
connection box of the associated supply fan in the system.
Data Cable installation
A 4-core SELV data cable is used to connect devices.
Do not run data cable in the same conduit as the mains
cables and ensure there is a 50mm separation between
the data cable and other cables. The maximum cable run
between any two devices is 300m when it is installed in
accordance with the instructions.
Please note that the total data cable length used in any
system must be less than 1000m. Keep the number of cable
oints to a minimum to ensure the best data transmission
efficiency between devices.
To connect the mains supply to the unit it is necessary to
remove the casing from the heater body. Remove the two
fixing screws and lift off the casing to reveal the terminal
block marked LNE (See fig 4).
Knockouts are provided in the casing panel for cable entry.
Connect mains wiring to terminals (3kW 230V a.c. 1 phase).
Locating the temperature probe sensor
A flying lead is attached to the heater module which is
terminated with a temperature sensing probe.
The probe should be located in the ductwork approximately
500mm DOWNSTREAM of the heater. (See fig 1).
Setting the ‘air-off’ temperature
A variable ‘air off’ temperature ad ustment is provided on
the side of the heater module (see fig 5). The setting is
ad ustable from 5 - 35oC and is achieved by inserting a
small screwdriver into the ad uster aperture and rotating
the spindle clockwise or anti-clockwise.
Manual Reset button
The heater will normally operate automatically. To ensure
safe operation it has a safety cut-out with a manual reset
button, located on the top of the casing (see fig 6).
This may be used to reactivate the heater in the event of a
shut down due to overheating.
Installation and Maintenance ECOSMART ESH Heater
L N 1 2 E
Figure 3. SELV cable connection on heater.
Figure 4. Connecting the mains supply.
5
10
15
20
25
30
oC
35
Figure 5. Setting the ‘air off’ temperature.
Figure 6. Manual reset button.
11. 05. 17. Leaflet Number 671181
2

Wiring
Mains wiring
SELV data lin
Installation and Maintenance ECOSMART ESH Heater
FAULT
N
230V 50Hz 1 phase supply
L N E 1 2
L N
Ecosmart heater Ecosmart Squrbo with heater
Technical or commercial considerations may, from time to time, make it necessary to alter the design, performance and
dimensions of equipment and the right is reserved to make such changes without prior notice.
Replacement of Parts
Should any component need replacing Nuaire keep extensive
stocks for quick delivery. Ensure that the unit is electrically
isolated, before carrying out any work.
When ordering spare parts, please quote the serial number
of the unit and the ARC number of the purchase if possible.
(This information will be available on the fan label).
Warranty
The 3 year warranty starts from the day of delivery and
includes parts and labour for the first year.
The remaining 2 years 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.
The product warranty applies to the UK mainland and in
accordance with Clause 14 of our Conditions of Sale.
Customers purchasing from outside of the UK should
contact Nuaire International Sales office for further details.
After Sales Enquiries
For technical assistance or further product information,
including spare parts and replacement components, please
contact the After Sales Department.
Telephone [phone]
11. 05. 17. Leaflet Number 671181
3

11. 05. 17. Leaflet Number 671181
4
To comply with EC Council Directives 2006/42/EC Machinery Directive and
2014/30/EU (EMC).
To be read in conjunction with the relevant Product Documentation (see 2.1)
1.0 GENERAL
1.1 The equipment referred to in this Declaration of Incorporation is supplied by
Nuaire to be assembled into a ventilation system which may or may not include
additional components.
The entire system must be considered for safety purposes and it is the
responsibility of the installer to ensure that all of the equipment is installed in
compliance with the manufacturers recommendations and with due regard to
current legislation and codes of practice.
2.0 INFORMATION SUPPLIED WITH THE EQUIPMENT
2.1 Each item of equipment is supplied with a set of documentation which provides
the information required for the safe installation and maintenance of the
equipment. This may be in the form of a Data sheet and/or Installation and
Maintenance instruction.
2.2 Each unit has a rating plate attached to its outer casing. The rating plate
provides essential data relating to the equipment such as serial number, unit
code and electrical data. Any further data that may be required will be found
in the documentation. If any item is unclear or more information is required,
contact Nuaire.
2.3 Where warning labels or notices are attached to the unit the instructions given
must be adhered to.
3.0 TRANSPORTATION, HANDLING AND STORAGE
3.1 Care must be taken at all times to prevent damage to the equipment. Note that
shock to the unit may result in the balance of the impeller being affected.
3.2 When handling the equipment, care should be taken with corners and edges and
that the weight distribution within the unit is considered. Lifting gear such as
slings or ropes must be arranged so as not to bear on the casing.
3.3 Equipment stored on site prior to installation should be protected from the
weather 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, air borne contaminants and unit
orientation.
4.2 Where installation accessories are supplied with the specified equipment eg.
wall mounting brackets. They are to be used to support the equipment only.
Other system components must have separate provision for support.
4.3 Flanges and connection spigots are provided for the purpose of oining to
duct work systems. They must not be used to support the ductwork.
5.0 INSTALLATION REQUIREMENTS
In addition to the particular requirements given for the individual product, the
following general requirements should be noted.
5.1 Where access to any part of equipment which moves, or can become electrically
live are not prevented by the equipment panels or by fixed installation detail
(eg ducting), then guarding to the appropriate standard must be fitted.
5.2 The electrical installation of the equipment must comply with the requirements
of the relevant local electrical safety regulations.
5.3 For EMC all control and sensor cables should not be placed within 50mm or on
the same metal cable tray as 230V switched live, lighting or power cables and
any cables not intended for use with this product.
6.0 COMMISSIONING REQUIREMENTS
6.1 General pre-commissioning checks relevant to safe operation consist of the
following:
Ensure that no foreign bodies are present within the fan or casing.
Check electrical safety. e.g. Insulation and earthing.
Check guarding of system.
Check operation of Isolators/Controls.
Check fastenings for security.
6.2 Other commissioning requirements are given in the relevant product documentation.
7.0 OPERATIONAL REQUIREMENTS
7.1 Equipment access panels must be in place at all times during operation of the
unit, and must be secured with the original fastenings.
7.2 If failure of the equipment occurs or is suspected then it should be taken out of
service until a competent person can effect repair or examination. (Note that
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 the relevant product documentation.
8.2 It is important that the correct tools are used for the various tasks required.
8.3 If the access panels are to be removed for any reason the electrical supply to the
unit must be isolated.
8.4 A minium period of two minutes should be allowed after electrical disconnection
before access panels are removed. This will allow the impeller to come to rest.
NB: Care should still be ta en however since airflow generated at some
other point in the system can cause the impeller to “windmill” even when
power is not present.
8.5 Care should be taken when removing and storing access panels in windy
conditions.
INFORMATION FOR SAFE INSTALLATION, OPERATION AND MAINTENANCE
OF NUAIRE VENTILATION EQUIPMENT
DECLARATION OF INCORPORATION AND INFORMATION FOR SAFE INSTALLATION,
OPERATION AND MAINTENANCE
We declare that the machinery named below is intended to be
assembled with other components to constitute a system of
machinery. The machinery shall not be put into service until the
system has been declared to be in conformity with the provisions of the
EC Machinery Directive.
Designation of machinery: ECOSMART HEATER
Machinery Types: ESH
Relevant EC Council Directives: 2006/42/EC (Machinery Directive)
Applied Harmonised Standards: BS EN ISO 12100-1, BS EN ISO 12100-2,
EN294, EN60204-1, BS EN ISO 9001
Applied National Standards: BS848 Parts One, Two and Five
Signature of manufacture representatives:
Name: Position: Date:
1) C. Biggs Technical Director 20. 07. 07
2) A. Jones Manufacturing Director 20. 07. 07