Daikin EWAH620TZ-XSB2 [15/102] Options

14/100

OPTIONS

Refrigerant leak detection (opt. code 121) Automated permanent refrigerant leak detection system installed

on board. The refrigerant sensors are installed within the compressor acoustic enclosures and are specifically

calibrated for R1234ze refrigerant. When leaks above a certain concentration are detected, the sensor sends a

signal to the unit controller (a specific alarm is visualized on the unit microprocessor). The automatic shut down

and pump down of refrigerant into the condensing section occurs on the detection of refrigerant leakage. Available

only for Reduced Sound configuration.

E-coating microchannel coils (opt. code 139)

A protection a layer of an epoxy polymer is added on the surface of the exchanger. The process consists in the

complete immersion of the exchanger in the epoxy polymer solution. An electric voltage applied to the exchanger

causes a difference with the electrical charge of the polymer molecules that, as result, are drawn to the metal.

The thickness of the coating is controlled by the applied voltage. The result is a uniform layer of epoxy polymers

applied all over the exchanger surface. A final UV top-coat treatment is applied on the coil surface. The treatment

is recommended in all application where high risk of corrosion exist (eg: high pollutted urban, costal, industrial

environments and their combinations). Opt. incompatibility 153.

Unit guards (to cover unit access) (opt. code 140)

Wire mesh that cover the access around the unit

Side panels on coil ends (opt. code 141)

Protection carter on both side of each condensing module.

Blue coat (opt. code 153)

An epoxy powder is sprayed and electrostatically fixed to the coil. Once the surface is completely covered by the

epoxy material, the coil is sent in to a furnace for the drying and curing phase. The result is an uniform and

durable coating that enhance the resistance to the corrosion. The treatment is recommended in all application

where moderate risk of corrosion exist (eg: urban, costal, industrial environments) - Opt. incompatibility 139.

Evaporator optimized for high delta T (opt. code 154) Unit performance may differ from standard. Contact

factory for more details - Opt. incompatibility 164.

CU-NI evaporator tubes (Opt.code 164) Evaporator tubes made of Cu-Ni 90-10 material and Cu-Ni 90-10

tube sheets cladding. Epoxy ceramic coating of water headers and sacrificial anodes. Cupronickel is highly

resistance to corrosion; for this reason it is used in aggressive environment. Unit performances may differ from

standard. Contact factory for more details. - Opt. incompatibility 154.