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12

DIMENSIONAL DATA

ENGLISH

Operational Check-out

Room unit has been wired according to the
wiring diagram. Unit to be in cooling mode
and there should be sufficient load on the
evaporator coil for the unit to operate. After
the system has been has operated for at least
two hours at normal operating conditions
without any indication of malfunction, it
should be allowed to operate over-night on
automatic controls 

Then a thorough recheck of the entire system
operation should be made as follows:

a. Check compressor head and suction pres-

sures. If not within system design limits,
determine why and take corrective action.

b. Check liquid line sight glass and expansion

valve operation. If there are indications that
more refrigerant is required, leak test all
connections and system components and
repair any leaks before adding refrigerant.

c. When applicable, observe oil level in com-

pressor crankcase sight glass, and add oil
as necessary to bring level to center of the
sight glass.

d. Thermostatic expansion valves must be

checked for proper superheat settings.
Sensing bulbs must be in positive contact
with the suction line. Valves with high
superheat settings produce little refrigera-
tion and poor oil return too little superheat
causes low refrigeration capacity and pro-
motes liquid slugging and compressor bear-
ing washout.

e. All fan motors on air cooled condensers,

evaporators, etc. should be checked for
proper rotation. Fan motor mounts should
be carefully checked for tightness and prop-
er alignment. If belt drives are used, check
the belt tension. All motors requiring lubri-
cation should be oiled or greased as neces-
sary.

f. Using suitable instruments, carefully check

line voltage and amperage at the compres-
sor terminals.  Voltage Must be within 10%
of that indicated on the compressor name-
plate. If high or low voltage indicated, notify
the power company. The current normally
should not exceed 120% of the nameplate
rating. If amperage draw is excessive,
immediately determine the cause and take
corrective action. On three phase motor-
compressors, check to see that a balanced
load is drown by each phase.

g. Measure the current consumption and com-

pare it with the nominal motor current on
the fan type plate or Motor rating plate. If
there is continuous overload switch the
centrifugal fan off immediately. Check that
the fan runs smoothly and quietly Ensure
that there are no unusual oscillations or
vibrations. Check  the motor for any abnor-
mal noises.

Check that the fan runs smoothly and quietly
ensure that there are no unusual oscillations
or vibrations. Check the motor for any abnor-
mal noises.

R C G Y1

Installation of thermostat (Optional)

Содержание LK-C0608A

Страница 1: ... manual completely before installing the product Installation work must be performed in accordance with the national wiring standards by authorized personnel only Please retain this installation manual for future reference after reading it thoroughly SINGLE PACKAGE TYPE AIR CONDITIONER ENGLISH ...

Страница 2: ...condition er is used for many hours Clean the air filter once every 2 weeks Dust and impurities collected in the air filter may block the air flow or weaken the cooling dehumidifying functions For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes Write the model number and the serial number here Model number Serial number You c...

Страница 3: ...disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse There is ris...

Страница 4: ...nd open a window for ventilation before turn the prod uct on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the w...

Страница 5: ... a problem for your neighbors Don t use people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Operation Do not expose the skin directly to cool air for ...

Страница 6: ...on 10 Pre Installation checkup Electrical 10 Preparation for installation 10 Avoid installing the packaged unit air conditioner in the following 11 Carrying out installation 11 Condensate Draining 11 Pre start Up Checklist 11 Pre start Up Procedure 12 Operational Check out 12 13 14 Wiring diagrams 14 Electronic Wiring 15 Field Wiring 16 Electric Characteristics TABLE OF CONTENTS Installation of th...

Страница 7: ...INTRODUCTION 7 ENGLISH Features 5 6 7 6 8 3 RT Top View Return Air outlet vents Supply Control access panel Motor access panel Front View INTRODUCTION ...

Страница 8: ...r the drawings shown for recommended clearance Proper level base on foundation with appro priate vibration mount All connections and hook up to be followed as per instructions which ensures long term trouble free opera tion and performance If power fuse is blown off be sure to replace the same with a new fuse having pre designed Amperage Do not use a steel wire or copper wire instead of proper fus...

Страница 9: ...ng items Operating at low noise and low vibration level Adjustable evaporator fan drive set for easy air flow adjustment Easily accessible sight glass on the refrigera tion circuits to monitor the proper refrigerant charge and operation Thermostatic expansion valve ensures the efficient operation at variable load conditions Installation Unit mm Model A B C LK C0608A 630 900 1 350 LK C0728A 750 900...

Страница 10: ...provided in the wiring diagram included in the manual Verify that electric connec tions cable entry section of leads protec tions are compliant with the electric Specification and with the instructions provid ed in the wiring scheme Verify that all con nections comply with the standards applicable to the installation of air conditioners Preparation for installation When deciding on the location of...

Страница 11: ... for proper direction of rotation of motors Make sure all system hand valves are in fully open position and system contains an oper ating charge of refrigerant Pre start Up Procedure After the installation has been completed the following points should be covered before the system is placed in operation a Check electrical connections Be sure they are all tight b Remove or loosen shipping retainers...

Страница 12: ...uperheat causes low refrigeration capacity and pro motes liquid slugging and compressor bear ing washout e All fan motors on air cooled condensers evaporators etc should be checked for proper rotation Fan motor mounts should be carefully checked for tightness and prop er alignment If belt drives are used check the belt tension All motors requiring lubri cation should be oiled or greased as neces s...

Страница 13: ...level against the bottom of the base and adjust until level then tighten the screws Leveling is for appearance only and will not affect thermostat opera tion 9 Insert stripped labeled wires into match ing wire terminals See Wiring Diagrams Section 3 Figure 3 10 Tighten screws on terminal block Gentiy tug on each wire to bo sure of proper connection Double check that each wire is connected to the p...

Страница 14: ...of ca pacity or electric work deficiency it may cause an electric shock or fire Electric wire Round crimp style terminal Attach insulation sleeve CAUTION The circuit diagram is not subject to change without notice Be sure to connect wires according to the circuit diagram Connect the wires firmly so that not to be pulled out easily Connect the wires according to color codes by referring the circuit...

Страница 15: ...ction to pipe Install the main switch that can interrupt all the power sources in an integrated manner be cause this system consists of the equipment utilizing the multiple power sources If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the product is operating attach a reversed phase protection cir cuit locally Running the product i...

Страница 16: ...isible and not more than 50 ft 15 24 m from each other Article 100 Circuit Breaker as per NEC 440 22 B 1 MODEL CONDENSER EVAPORATOR MFCB BCCS MOC Compressor Condenser Fan SUPPLY BLOWER MOTOR kW FLA RLA LRA FLA LK C0608A 11 0 65 5 1 4 0 75 2 0 26 20 16 LK C0728A 13 0 75 1 4 0 75 2 0 26 20 16 LK C0908A 15 0 100 2 0 1 1 2 7 31 23 20 LK C1058A 16 8 114 2 0 1 5 3 5 35 26 24 RLA Rated Load Current LRA L...

Страница 17: ...September 2016 ...

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