NuAire EST19H-X Installation Manual
NuAire EST19H-X Installation Manual

NuAire EST19H-X Installation Manual

3ph run & standby, roof or plantroom twinfans
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1.0 SAFETY INFORMATION
The provision of the electrical supply and the connection of the unit to the electrical supply 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.
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.
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.
Nuaire |
Western Industrial Estate
EST(19-20)H
3PH Run & Standby, Roof Or Plantroom Twinfans
Installation Manual
|
|
| nuaire.co.uk
Caerphilly
CF83 1NA
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.
19. 04. 21. Document Number 671845
1

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Summary of Contents for NuAire EST19H-X

  • Page 1 •Always include the operating instructions when you pass the have been in contact with normal room or environmental air. product on to third parties. Nuaire would always recommend a site specific risk assessment by a competent person to determine if any additional PPE is required. Nuaire | | nuaire.co.uk...
  • Page 2: Dimensions (Mm)

    Installation Manual 2.0 INTRODUCTION 2.2.2 EST19H-R EST19H-R Dimensions The Nuaire EST Twinfan Belt Drive range consists of the following unit: EST-R EST-X (Duct Mounted, Plantroom/Roof) in line unit. EST-R (Roof Mounted, end inlet) side discharge unit*. EST-B (Roof Mounted bottom inlet) side discharge unit*.
  • Page 3: Mechanical Installation

    1850mm max 2140mm max EST19H Decking Roof Upstand Dimensions Dimensions (mm) Unit Prefab Code Curb Code EST19H ESPFC6B 1169 1375 1399 1605 1268 1471 Nuaire | | nuaire.co.uk 19. 04. 21. Document Number 671845 Western Industrial Estate Caerphilly CF83 1NA...
  • Page 4: Electrical Installation

    Before commencing work make sure that the unit, switched live compatible sensors, manual controls and for linking the fans together and Nuaire control are electrically isolated from the mains supply. under a common control. If more than 4 connections are required, An Inverter is used to provide speed control.
  • Page 5: Wiring Diagram

    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 available on relevant units. Nuaire | | nuaire.co.uk 19. 04. 21. Document Number 671845 Western Industrial Estate Caerphilly CF83 1NA...
  • Page 6: Maintenance

    GREEN: Fan 2 is running, RED: Fan 2 faulty. Before commencing work make sure that the unit, switched live Heating* GREEN: Heating selected RED: Heating faulty. and Nuaire control are electrically isolated from the mains supply. Cooling* Not applicable. See note. Fault LED on when a fault is present on unit.
  • Page 7: General Cleaning And Inspection

    The drive should be tensioned until a slight bow appears in the slack side of the ‘V’ belt when running under load. Ensure that Nuaire product is made safe from any electrical / water / refrigerant supplies before dismantling commences. This work 7.6.3 Changing Drive Belt...
  • Page 8 fixed installation detail Nuaire to be assembled into a ventilation system which may or may not include (eg ducting), then guarding to the appropriate standard must be fitted.

This manual is also suitable for:

Est20h-xEst19h-rEst19h-bEst20h-bEst20h-r

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