Mitsubishi Heavy Industries FD Series, User Manual

1

Thank you very much for your purchase of this packaged air conditioning system produced 
by Mitsubishi Heavy Industries. Please read through this manual before using the 
product and use the product appropriately according to the instructions in the manual. 
After you have read the manual, store it with the warranty certifi cate in a safe place. 

This Product contains fl uorinated greenhouse gases.
Do not vent R32 into the atmosphere: R32 is a fl uorinated greenhouse gas with 
a Global Warming Potential (GWP) = 675.
Do not vent R410A into the atmosphere: R410A is a fl uorinated greenhouse gas 
with a Global Warming Potential (GWP) = 2088.
Refer to a label on outdoor unit for the weight of fl uorinated greenhouse gas and 
CO

2

 equivalent.

The emission sound pressure level from each Indoor and Outdoor unit is under 
70 dB(A).

SAFETY PRECAUTIONS

J

Please read these 
“SAFETY PRECAUTIONS” 
before starting to use 
this product and use the 
product appropriately 
according to the 
instructions.

J

The precautions provided 
here are classified into 
“

 DANGER” and 

“

 CAUTION”. The 

“

 DANGER” sections 

describe potentially 
hazardous situations 
that may lead to serious 
outcomes such as death 
and serious injuries if the 
product is mishandled. 
Note, however, that 
depending on the 
situation, the items listed 
in the “

 CAUTION” 

sections do also have 
the potential of causing 
serious outcomes. Both 
warnings and cautions 
provide you important 
information related to 
safety ; please make sure 
to observe them.

J

The symbols used 
throughout the main text 
of this manual have the 
following meaning.

 marks mean danger, 

alarm, and caution. The 
specified prohibited 
item is described in the 
triangle. The left mark 
means “Shock hazard 
alarm”.

{

marks mean 

prohibited items. The 
specified prohibited 
item is described in the 
circle or in the vicinage.

z

 marks mean 

compulsory action 
or instruction. The 
specified prohibited 
item is described in 
the circle. The left 
mark means “Earth is 
needed”.
The user’s manual 
should be read 
carefully.
There is information 
included in the 
user’s manual and/or 
installation manual.
A service personnel 
should be handing 
this equipment with 
reference to the 
installation manual.

J

After you have read the 
manual, always store it 
where other users can 
refer to at any time. If a 
new owner takes over the 
system, make sure to pass 
this manual. 

J

SAFETY PRECAUTIONS

 ...................................................................................................................................................1

J

HOW TO  USE

< WIRED REMOTE CONTROL (RC-E series) >

NAMES AND FUNCTIONS OF REMOTE CONTROL BUTTONS ......................................................................................5

HOW TO OPERATE ............................................................................................................................................................5

HOW TO PERFORM THE TIMER OPERATION .................................................................................................................6

THE SELECTION OF TIMER MODE ...............................................................................................................................6

SETTING THE TIME.........................................................................................................................................................6

SLEEP TIMER MODE ......................................................................................................................................................7

OFF TIMER MODE ...........................................................................................................................................................7

ON TIMER MODE ............................................................................................................................................................7

WEEKLY TIMER MODE ...................................................................................................................................................8

TIMER CANCELLATION MODE ..................................................................................................................................... 10

HOW TO OPERATE IN SILENT MODE ............................................................................................................................ 11

HOW TO ADJUST THE LOUVER ..................................................................................................................................... 11

HOW TO SET THE AIR FLOW DIRECTION ..................................................................................................................... 12

AIROUTLET SELECTION ................................................................................................................................................ 12

HOW TO OPERATE VENTILATION .................................................................................................................................. 13

FOR COMFORTABLE USE .............................................................................................................................................. 13

INSPECTION DISPLAY, FILTER SIGN, AIR CONDITIONER NUMBER, STANDBY, ROOM TEMPERATURE AND 

BACK UP DISPLAY .......................................................................................................................................................... 13

J

TROUBLE SHOOTING

 ..................................................................................................................................................... 14

J

NOTICE

PREPARATION OF HEATING .......................................................................................................................................... 14

AUTO RESTART ............................................................................................................................................................... 14

SETTING TO DISABLE BUTTON OPERATION ............................................................................................................... 15

INSTALLATION, RELOCATION, AND INSPECTION MAINTENANCE ............................................................................. 15

OPERATION RANGE ....................................................................................................................................................... 15

MAINTENANCE AND INSPECTION GUIDELINE OF MAIN PARTS OF PACKAGED AIR CONDITIONER .................... 16

ENGLISH