Bedienungsanleitung REMKO WLT-EC serie (Seite 16 von 60) (Englisch)

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3 Design and function

3.1 Unit description

In cooling mode the unit (chilled water outlet)

extracts the heat from the interior room to be

cooled into the fin register and passes it on to the

cold operating medium - water or a mix of water

and glycol - within a closed medium cycle. As a

result of the heat exchange the medium heats up

and the emergent air cools the room down.

In heating mode, a warm operating medium warms

the room to be heated. The medium cools down as

a result of the heat exchange.

The unit contains a 2-way or 3-way valve assembly

as standard for regulation of the cooling or heating

output. If the circulation pump used in the medium

cycle is not regulated, it is advisable to use a unit

with 3-way valve. In the case of a circulation pump

regulated via proportional pressure, it is advisable

to use a unit with 2-way valve.

Thanks to the new and very robust brushless EC

fans (electronically commutated), the energy con-

sumption, particularly in the low speed range, can

be reduced significantly and the fan speed can be

adjusted infinitely to the requirements. This also

enables an infinitely variable output of the cooling

or heating capacity in order to obtain an even more

constant temperature in the room.

The unit can be operated via numerous controller

options or via an external control signal. The appli-

cations can be adjusted easily using jumpers. The

following controls are possible:

n Single control using the IR remote control

provided by the factory

, alternative cabled

remote control (accessory) with five-stage fan

operation

n Network control for up to 32 units, all units

within a group via a REMKO bus provided by

the factory with five-stage fan operation

n Network control for up to 32 units, certain

units within a group via a REMKO bus pro-

vided by the factory with five-stage fan opera-

tion

n Single control using the wired room tempera-

ture regulation (provided by the customer or

available as an accessory) with three-stage fan

operation or steplessly via 0-10V signal

n Modbus network control via external hard-

ware or CBCS with infinitely variable fan oper-

ation

The units are equipped with a modern EC fan

motor

, plastic housing similar to RAL 9016, inte-

grated 2 or 3-way valve, condensate collection tray

and control board with a large number of switch

contacts.

Cabled remote control, a number of 230V or 0-10V

regulation variants and condensate pumps are

available as accessories.

Scope of delivery

The standard scope of delivery of the units com-

prises:

n Infrared remote control [1]

n W

all bracket for remote control [2]

n 2 screws and wall plugs for wall bracket [3]

n 2 batteries for remote control [4]

n Jumper [5]

Fig. 2: Scope of delivery

REMKO WLT EC series

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REMKO WLT-EC serie Seite 16

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