Install Instructions

VFH InverterFlex
®
- Ceiling Cassette Heat Controller
20
space and then discharged back
into the conditioned space. Try to
ventilate the space, clean, or
remove the source of the odor.
Odor occurs the first time the unit
operates or after the unit has been
unused for an extended period of
time.
If the unit is being operated for the
first time, after being installed, or it
has not been run for an extended
period of time, there might be a
slight odor that will dissipate. A
new unit may have a plastic smell
coming from the filter material; this
is normal and will go away over
time. If the unit has not been used
for an extended period of time,
there might be a dusty odor that
will dissipate as well. See care and
cleaning instructions in the manual.
An Error Code is Displayed on the
Control Panel
The unit has detected an error Contact an authorized servicer.
Glossary of Error Codes and Their Meanings:
7URXEOHVKRRWLQJ

3UREOHP+DQGOLQJ
7KHFRQGLWLRQVOLVWHGEHORZDUHQRWFODVVL¿HGLQWRHUURUV
(UURU'HVFULSWLRQ
,IVRPHHUURURFFXUVZKHQWKHXQLWLVUXQQLQJWKHHUURUFRGHZLOOEHGLVSOD\HGRQWKHZLUHGFRQWUROOHUDQGWKHPDLQERDUGRI
WKHRXWGRRUXQLW&KHFNIRUPRUHGHWDLOVDERXWWKHPHDQLQJRIHDFKHUURUDVVKRZQLQWDEOHDDQGE
7KHHUURUFRGHVIRUGXFWFDVVHWWHDQGÀRRUFHLOLQJW\SHXQLWDUHVKRZQLQWKHIROORZLQJWDEOHD
Conditions Causes
The unit does
not run
When restart the unit soon after it is
stopped.
The overload protection switch of the unit
let the startup delayed for three minutes.
As soon as power is on.
The unit will stand by for approximate one
minute.
The unit blows
out mist
When the cooling operation starts. The hi-humidity air indoor is cooled quickly.
The unit
generates noise
The unit “clatters” as soon as it starts
running.
It is the sound generated during the
initialization of the electronic expansion
valve.
The unit “swishes” during the cooling
operation.
It is the sound when the refrigerant gas
runs inside the unit.
ro detrats si ti nehw ”sehsiws“ tinu ehT
stopped.
It is the sound when the refrigerant gas
stops running.
The unit “swishes” when it is in and
after the running.
It is the sound when the draining system is
operating.
The unit “squeaks” when it is in and
after the running.
It is the sound of frication generated by
the skin plate etc which swells due to the
temperature change.
The unit blows
out dust
When the unit restarts after it is not
used for a long time.
The dust inside the unit is blown out again.
The unit
emits odors
When the unit is running.
The odors absorbed in are blown out
again.
7DEOH
Error Item
Outdoor
Unit 88
Display
Indicating LED Flashing Times
88 Display
Wired
Controler
Display
Error Type
Running
LED
Cooling
LED
Heating
LED
High Pressure
Protection
E1 Flash once / / E1 E1 Outdoor
Shutdown for
Whole Unit Anti-
Freeze Protection
E2 Flash twice / / E2 E2 System Error
Low Pressure
Protection
E3 Flash 3 times / / E3 E3 Outdoor
7DEOHD
7URXEOHVKRRWLQJ

High Discharge
Temp Protection
E4 Flash 4 times / / E4 E4 Outdoor
Communication Error E6 Flash 6 times / / E6 E6
Outdoor &
Indoor
Indoor Unit Water
Full Error
E9 Flash 9 times / / E9 E9 Indoor
Refrigerant
Recovery Mode
Fo
Quick
Flashing
Quick
Flashing
/ Fo Fo Special Mode
Outdoor Ambient
Temp Sensor Error
F3 / Flash 3 times / F3 F3 Outdoor
Outdoor Mid-Coil
Temp Sensor Error
F4 / Flash 4 times / F4 F4 Outdoor
Outdoor Discharge Air
Temp Sensor Error
F5 / Flash 5 times / F5 F5 Outdoor
Oil Return for Cooling F7 / / / / / Special Mode
Forced Defrosting H1
Quick
Flashing
/ / H1 H1 Special Mode
Oil Return for Heating
or Defrosting
H1 / / Flash once H1
Special Mode
Compressor Overheat
Protection
H3 / / Flash 3 times H3 H3 Drive Error
IPM Protection H5 / / Flash 5 times H5 H5 Drive Error
Motor Desynchronizing H7 / / Flash 7 times H7 H7 Drive Error
PFC Error Hc / / Flash 6 times Hc Hc Drive Error
Startup Failure Lc / / Flash 11 times Lc Lc Drive Error
DC Fan motor Error LA /////Outdoor
Phase Loss Ld Flash 3 times Flash 3 times Flash 3 times Ld Ld Drive Error
Compressor Stalling LE Flash 3 times Flash 3 times Flash 3 times LE LE Drive Error
Over-Speed LF Flash 3 times Flash 3 times Flash 3 times LF LF Drive Error
IPM Reset P0 Flash 3 times Flash 3 times Flash 3 times P0 P0 Drive Error
Compressor Current
Protection
P5 / /
Flash 15
times
P5 P5 Drive Error
Communication
Error between the
Inverter Drive and
the Main Controller
P6
Flash 16
times
/ / P6 P6 Drive Error
Radiator Temp
Sensor Error
P7 / /
Flash 18
times
P7 P7 Drive Error
Radiator Overheat
Protection
P8 / /
Flash 19
times
P8 P8 Drive Error
AC Contactor Protection P9 Flash 3 times Flash 3 times Flash 3 times P9 P9 Drive Error
Current Sensor Error Pc / /
Flash 12
times
U1 Drive Error
Sensor Connection
Protection
Pd Flash 3 times Flash 3 times Flash 3 times Pd Pd Drive Error
Over Voltage Protection PH / Flash 11 times / PH PH Drive Error