Daikin Navigator WWV - General Description of Navigator Chillers; Templifier Models Overview; Nomenclature and Model Identification

INTRODuCTION
NAVIGATOR WWV/TWVDAIKIN APPLIED
4
General Description
Daikin Applied Navigator
®
model WWV chillers are complete,
self-contained, automatically controlled, liquid-chilling units
featuring variable speed screw compressors. All model WWV
chillers are equipped with a single cooling circuit and single
compressor.
Navigator chillers are designed for indoor installation only.
The chillers use refrigerant R-134a or R-513A, with no ozone
depletion level.
NOTICE
Indoor installations must be in a structure with a permanent oor
and roof. The unit must be enclosed by walls for protection from
weather conditions.
The WWV is made up of a high e󰀩ciency, new variable volume
ratio (VVR
®
) series single screw compressor, ooded shell
and tube evaporator, and a shell and tube condenser. The
compressor is designed to operate in a very wide operating range
and ensure the best possible e󰀩ciency in each working condition.
In this regard, a sophisticated device dynamically manages the
VVR. This system ensures the optimum position of the discharge
ports as a function of the operating compression ratio, choosing
one among the four available positions.
All the described components are managed by an innovative
microprocessor control system that optimizes operations by
monitoring all the machine operating parameters. A diagnostic
system helps the operator in identifying alarm and fault causes.
Only normal eld connections such as water piping, electric
power, and control interlocks are required, thereby simplifying
installation and increasing reliability. Necessary equipment
protection and operating controls are included.
All Daikin Applied screw chillers must be commissioned by
a Daikin Applied service technician or an authorized service
provider. Failure to follow this startup procedure can a󰀨ect the
equipment warranty.
The standard limited warranty on this equipment covers parts that
prove defective in material or workmanship. Specic details of
this warranty can be found in the warranty statement at the back
of this manual.
Templier models
Templier
®
units are designed to operate over a large range
of temperatures so as to have wide application possibilities. In
addition to the standard cooling mode, Templier models have a
heating mode to control the condenser leaving water temperature
and a higher max condenser leaving water temperature. See
page 18 for more information.
Nomenclature
No. Description
1 W = Water-cooled
T = Templier
2 W = World
3 V = Variable Speed Chiller
4 Compressor Size
5 Design Vintage
6 Circuit Conguration