Nortek PREEVA NEOS, Installation And Servicing Manual

Page No 4 of 52 Reznor, PREEVA Neos, Installation Manual,  EN 2021-05, D301315 Iss 1

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PREEVA NEOS Range 

General product information

PREEVA NEOS is the latest generation of 
packaged gas fired heating, ventilation and 
cooling units, CE and UKCA certified to 
EN17082 for use in non domestic installations. 

All models and sizes are available for use with 
natural gas (G20, G25 or G25.3). The type of 
gas, the input rate and the electrical supply 
requirement is shown on the heater rating 
plate. Check the rating plate to determine 
if the heater is appropriate for the intended 
installation.

This installation manual is shipped with the 
unit. Verify that the literature is correct for 
the model being installed. If the manual is 
incorrect for the heater, contact the supplier 
before beginning installation.

The instructions in this manual apply only to 
the models listed.

Installation should be carried out by a 
suitably qualified installer in accordance with 
these instructions and the current rules and 
regulations in force. The installer is responsible 
for the safe installation of the heater.

Using this manual 

The symbols for ‘Caution’ and ‘Warning’ are 
used to highlight certain points throughout 
this manual.

Caution is used when failure 
to follow or implement the 
instruction(s) can lead to 
premature failure or damage to   
the heater or its component parts.

Warning is used when failure 
to heed or implement the 
instruction(s) can lead to not only 
component damage, but also to a  
hazardous situation being created 
where there is a risk of personal 
injury.

Warranty 

This equipment comes as standard with a 
manufacturers two year warranty (2 years 
parts, 1 year labour). The warranty is void if: 

1.  The installation is not in accordance with 

these instructions.

2.  Wiring is not in accordance with the 

diagram furnished with the heater.

3.  The unit is installed without proper 

clearances wherever clearances are 
required regardless of the material being 
combustible.

4.  The unit is installed without proper 

ventilation and air for combustion.

5.  The equipment is used in atmospheres 

containing flammable vapours or 
chlorinated or halogenated hydrocarbons 
or any contaminant (silicon, aluminium 
oxide, etc.).

6.  The equipment has not been serviced 

and maintained in accordance with the 
information contained within these 
instructions.

7.  The air throughput is not adjusted within 

the range specified on the rating plate.

Ignoring the warning and 
caution notices, and ignoring the 
advice from the manufacturer 
on installation, commissioning, 
servicing, or use, will jeopardise 
any applicable warranty. This 
could also compromise the safe 
and efficient running of the 
appliance itself, and thereby 
constitute a hazard.

The electrical isolator should only 
be used for maintenance purposes 
or in an emergency. It should 
not be used for closing down the 
main burner, as it switches off the 
fan prematurely and may damage 
the heat exchanger, invalidating 
the warranty.