3
Design and function
3.1 Unit description
The indoor unit on the compact wall chests serves
to extract heat from the indoor room being cooled.
The outdoor unit then expels this heat to the out-
side.
If combined heating/cooling units are operated as
heaters, the heat absorbed by the outdoor unit can
be discharged by the indoor unit into the room
being heated.
The unit is designed to be mounted low down on
the wall, in an indoor area. It is operated by an
infrared remote control.
The indoor unit consists of a fin evaporator, evapo-
rator fan, controller and condensate tray. The
indoor unit can be combined with REMKO outdoor
units from the MVV 1200 -2000 DC range that pro-
vide sufficient combination options. The outdoor
unit is controlled by the regulation of the indoor
unit.
Condensate pumps are available as accessories.
Refrigerant piping is used to connect the indoor
unit to the outdoor unit.
T2B
motor
heat exchanger
fan
EXV
T2
T1
1
2
3
4
5
6
Fig. 2: Cooling cycle schematic
1: Evaporator fan motor
2: Temperature probe, suction pipe
3: Temperature sensor, recirculation
4: Evaporator centre temperature probe
5: Evaporator
4
Operation
4.1 General notes
The indoor unit is easily operated using the
standard infrared remote control. The indoor unit
beeps to acknowledge the correct transmission of
data. If it is not possible to program the indoor unit
with the remote control, then it can also be man-
ually operated.
Manual mode
The indoor unit can also be started manually.
Press the key next to the LEDs to activate auto-
matic mode.
The following settings apply for manual operation:
Pressing once: Automatic mode,
Pressing twice: Cooling test mode, active for 30
minutes
Pressing three times: Unit OFF
Infrared remote control
The infrared remote control sends the programmed
settings a distance of up to 6 m to the receiver of
the indoor unit. Data will only be received correctly
if the remote control is pointed at the receiver and
no objects are obstructing the transmission path.
Two AAA batteries must be inserted into the
remote control in preparation. To do so, remove
the flap from the battery compartment and insert
the batteries the correct way around (see mark-
ings). Removing the batteries causes all stored
data to be lost. The remote control will then access
the default settings, which you are free to cus-
tomise at any time.
max. 6 m
Fig. 3: Maximum distance
9
Summary of Contents for MVW 222
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