Installation Manual

INSTALLATION INSTUCTIONS
MAINTENANCE & TROUBLE-SHOOTING
P27 OF 36 P28 OF 36
Compressor operates
Air exhaust protection frequency limitAir exhaust protection frequncy limit
Compressor high pressure protection
unit stop
Cooling overload frequncy reducing Cooling overload frequncy limit
Air exhaust protection unit stop
Over current protection frequency limit
Over current protection frequency
reducing
Communication malfunction unit stop
(Include indoor unit and driver)
Phase current protection frequncy
reducing
Phase current protection frequncy limit
IPM modular protection unit stop
Heating A unit anti-high temperature
frequncy reducing
Heating A unit anti-high temperature
frequncy limit
Over current protection unit stop
Heating B unit anti-high temperature
frequncy reducing
Heating B unit anti-high temperature
frequncy limit
Cooling overload unit stop
Heating C unit anti-high temperature
frequncy reducing
Heating C unit anti-high temperature
frequncy limit
Each indoor unit starts heating at same time
anti-high temperature protection unit stop
Heating D unit anti-high temperature
frequncy reducing
Heating D unit anti-high temperature
frequncy limit
Each indoor unit anti-freezing protection
at same time unit stop
Defrosting
Oil return
Outdoor unit temp. sensor malfunction or each
indoor unit temp. sensor malfunction unit stop
Compressor overload protection unit
stop
Compressor low-pressure protection
unit stop (preserved)
Phase current protection unit stop
E2 PROM Error unit stop
DC power supply short circuit
D101 D102 D103
D104 D105 D106
D107
D108 D109
Blink
once
Blink
once
Twice Twice
Three
times
Three
times
Blink
once
Twice
Three
times
Four
times
Five
times
Six
times
Seven
times
Eight
times
Nine
times
Ten
times
Eleven
times
Twelve
times
Thirteen
times
Fourteen
times
Fifteen
times
A unit communication malfunction
(cannot receive correct data within 3mins.)
B unit communication malfunction
(cannot receive correct data within 3mins.)
A unit indoor middle temp. sensor
malfunction
B unit indoor middle temp. sensor
malfunction
A unit indoor outlet pipe temp. sensor
malfunction
B unit indoor outlet pipe temp. sensor
malfunction
A unit indoor inlet pipe temp.
sensor malfunction
B unit indoor inlet pipe temp.
sensor malfunction
A unit indoor ambient temp.
sensor malfunction
B unit indoor ambient temp.
sensor malfunction
A unit modes conflict B unit modes conflict
A unit anti-freezing protection B unit anti-freezing protection
A unit anti-high temp. protection B unit anti-high temp. protection
Outdoor ambient temp. sensor
malfunction
Outdoor tube temp. sensor malfunction
Outdoor air exhaust temp. sensor
malfunction
Communication malfunction with driver (cannot
receive correct data from driver within 10s)
C unit communication malfunction
(cannot receive correct data within 3mins.)
D unit communication malfunction
(cannot receive correct data within 3mins.)
Received communication data proof
test correct will flash once
C unit indoor middle temp. sensor
malfunction
D unit indoor middle temp. sensor
malfunction
C unit indoor outlet pipe temp. sensor
malfunction
D unit indoor outlet pipe temp. sensor
malfunction
C unit indoor inlet pipe temp.
sensor malfunction
D unit indoor inlet pipe temp.
sensor malfunction
C unit indoor ambient temp.
sensor malfunction
D unit indoor ambient temp.
sensor malfunction
C unit modes conflict
D unit modes conflict
C unit anti-freezing protection
C unit anti-high temp. protection
D unit anti-freezing protection
D unit anti-high temp. protection
Four
times
Five
times
Six
times
Seven
times
Eight
times
Nine
times
Four
times
Five
times
Six
times
Seven
times
Eight
times
Nine
times
Blink
once
Blink
once
Blink
once
Twice TwiceTwice
Three
times
Three
times
Three
times
Four
times
Four
times
Four
times
Five
times
Six
times
Seven
times
Eight
times
Five
times
Six
times
Seven
times
Eight
times
Blink
once
Blink
once
Blink
once
TwiceTwice
Three
times
Three
times
Four
times
Four
times
Five
times
Six
times
Seven
times
Eight
times
Five
times
Six
times
Seven
times
Eight
times
Meaning
Meaning
Meaning
Meaning
Meaning
Meaning
Meaning
Meaning
Meaning
FAULT INDICATION
MAINTENANCE GUIDE
Use proper instruments for the refrigerant R410A.
Do not use any other than R410A.refrigerant
Do not clean the unit using mineral oil.
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World !
CHECK AFTER INSTALLATION AND TESOPERATIONT
1. Before test operation
(1) Do not turn on power before installation is finished completely.
(2) Electric wires must be connected correctly and securely.
(3) Cut-off valves of the connection pipes should be back seated/tunned on.
(4) All the left over installation material scraps must be cleared away from the unit before initial start up.
2. Test operation method
(1) Switch on power, press "ON/OFF" button on the wireless remote control to start the operation
(2) Press MODE button, to select the COOL, HEAT (not available for cooling only unit is ), FAN and so on to check :
* All the functions (to make sure the unit functions correctly and poroenty).
* Refrigerant (pressures/temperatures at sericea values/pipes should be good).
* Drainage (condensate/water flow should be dripping out of drainage pipe ONLY).
* Noise (there should be no abnormal symbol)
Has the been unit positioned firmly?
The unit may drop, shake or emit noise.
Have you done the refrigerant leakage test?
It may cause insufficient cooling(heating)
capacity.
Is heat insulation sufficient?
It may cause unexpected condensate and
dripping.
Is drainage pipe tested ?
It may cause leakage or unexpected dripping.
Is the voltage in accordance with the rated
voltage marked on the nameplate?
It may cause electric malfunction
or damage to the part/unit.
Is the electric wiring and piping
connection installed correctly and securely?
It may cause electric malfunction
or damage to the part/unit.
Has the unit been connected to a secure
earth connection?
It may cause electrical leakage.
Is the power cord specified properly per
NEC codes ?
It may cause electric malfunction
or damage to the part/unit.
Is the air inlet and outlet been cleared?
It may cause insufficient cooling(heating)
capacity, and unexpected noise.
Items to be checked
CHECK AFTER INSTALLATION
TEST OPERATION
1) Put back all covers, screws removed during
installation and start-up.
2) Properly note, mark, organize and secure wires.
3) Caulk the opening to weatherproof level at
opening frame both inside and outside.
4) Do a final visual inspection.
5) Teach or instruct owner or users how to correctly
operate the system and answer their questions.
6) Check against all items in Product/Warranty
Registration Card and sign it for the owner.
FINISH INSTALLATION
liquid piep
gas pipe
drain hose
adiabatic underlay
felt
Has the refrigerant pressure been checked or refrigerant
been adjusted accordingly?
It may generate unexpected noise, freezing pipe, capacity
issues, compressor or system damage or even worse.
Has the installing technician filled all the fields in the
checklist inside the warranty registration card?
If not filed or not filled completely or correctly, your factory
warranty may not be qualified.
Possible Problems or Consequences