Reduced footprint achieved by a unique,
new 4-sided heat exchanger

The new City Multi YNW system maximises the space available
for plant by reducing the area required for outdoor units.
Up to 51kW of cooling capacity can be delivered per
square metre of plant thanks to the advanced wrap
around heat exchanger.

This is 28% more than previous models.

Greater flexibility for location of outdoor units is possible thanks
to multiple external static pressure settings. Extending up to
80Pa will help with long or narrow ducting requirements.

Ultra-quiet noise levels

Potential noise issues with the outdoor plant
are reduced with City Multi YNW, thanks to an
improved compressor and fan design, reducing
sound power levels.

Offering complete flexibility to cope with
different noise criteria for multiple applications,
City Multi YNW has incremental capacity steps
to vary noise output.

YNW Sound power levels
Cooling (PURY-P)

Night time operation

Demand is generally lower, noise sensitivity
is increased, select step to meet needs

Acoustic enclosures

Costs can be saved by reducing the amount
of attenuation required

Reducing installation and
maintenance time

The unique two-pipe design allows for phased installation,
meaning that the cooling and heating system can be
installed around a project build, with individual sections
commissioned as required.

Up to 50 indoor units are connectable to the largest model and
a complete new range of Branch Controller (BC) boxes are now
available with a reduction in height, a removable drain pan and
a reduced refrigerant charge. A completely new piping layout
for the BC boxes can help to reduce installation time and make
maintenance regimes easier.

Next generation design

- Up to 11 Sub BCs connectable
- Capacity index increased to 350 per sub BC
- BC height reduced by 14%
- 20% overall reduction onsystem refrigerant volume

Highest ever levels of efficiency

City Multi YNW provides our lowest installation
costs, running costs and CO₂ emissions of a VRF
system. This is achieved through the new 4-sided
heat exchanger, compressor and fan design, improving
both nominal and seasonal efficiency levels.

The new models retain the unique flat tube
aluminium micro-channel heat exchanger which is
a pivotal step change in providing more effective
and efficient heat transfer.

These efficiency improvements mean that more
VRF system combinations qualify for the Enhanced
Capital Allowance (ECA) Scheme, allowing
companies to offset the capital cost against
their annual tax bill.

The most popular 34kW model benefits from a 28%
increase in seasonal efficiency, making compliance
with energy legislation easier to achieve.

Seasonal efficiency increase (%)