Operation manual
3
LREQ5~20B7Y1
Air cooled refrigeration condensing unit
4PW74303-1C – 2016.02
2. NAME OF PART
2-1 In the case of LREQ5, LREQ6, LREQ8,
LREQ10, LREQ12
2-2 In the case of LREQ15, LREQ20
3. SYSTEM CONFIGURATION
The condensing unit has the following system configuration.
3-1 Air cooled condensing unit
3-2 Other configuration equipment
For other configuration equipment, refer to the Operation
Manuals of the respective pieces of equipment.
4. METHOD OF OPERATION
Preparations
•
Turn on all the configuration
equipment.
•
Be sure to turn on the power at least 6
hours before starting the operation of
the equipment for the machinery
protection.
1. Set the operation switch of the outdoor unit to ON.
Stop
2. Set the operation switch of the outdoor
unit to OFF.
CAUTION
The unit must go through a stop movement before the unit is
turned power off.
Be sure to turn off the breaker after the operation switch is turned
off.
Note:
•
The use of a remote switch is recommended if the operation of the
unit is stopped frequently.
Request your dealer for the installation of the remote switch.
5. BETTER USE
5-1 Turn off the power if the unit is not operated for
a long time.
The unit will consume a power of several watts to several tens
of watts if the power is on (see note).
For the purpose of machine protection, however, be sure to turn
on the power at least 6 hours before resuming the operation of
the unit.
Note: The power consumption of the unit varies with the
operating factors, such as the condensing unit model.
5-2 Install an alarm if operational errors are likely
to degrade the commodities in storage.
The unit is provided with a terminal to output an alarm signal.
If the system should malfunction and there is no alarm, the
operation of the unit will be interrupted for a long time and
damage to the commodities in storage may result.
The installation of an alarm is recommended in order to take
appropriate measures promptly in such cases.
For details, consult your dealer.
Name
Outdoor unit
Shape
Name
Indoor unit
Refrigeration
Unit cooler
Showcase
Shape
Power supply wires
(to dedicated earth
leakage breaker)
Air outlet
Fan
Air inlet
Heat exchanger
(aluminium fin)
Transmission wiring
Refrigerant piping
Earth wire
A wire that makes
the system safe by
connecting the
outdoor unit to the ground
for the prevention of electric
shocks or fire resulting from
electric leakage.
Air outlet
Fan
Air inlet
Heat exchanger
(aluminium fin)
Transmission
wiring
Refrigerant
piping
Earth wire
A wire that makes the system
safe by connecting the outdoor
unit to the ground for the
prevention of electric shocks
or fire resulting from electric
leakage.
Power supply wires
(to dedicated earth
leakage breaker)
Name
Indoor unit
Defrost
control panel
Freezing
Unit cooler
Showcase
Shape
OFF
REMOTE
ON
To start operation
OFF
REMOTE
To stop operation
ON
OFF
4PWEN74303-1C.book Page 3 Thursday, March 10, 2016 10:59 AM
