Panasonic CS-E9DKDW / CU-E9DKD / CS-E12DKDW / CU-E12DKD Service Manual ▷ View online
8.2.3.2. Outdoor Air Temperature Control
The Max current value is regulated in accordance to the outdoor air temperature as shown in the below figures.
8.2.3.3. Overload Protection Control
The compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as shown in below figures.
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
8.2.3.4. Deice Control
A. Deice operation (Normal Deice Operation)
1. Detection methods
Outdoor heat exchanger temperature sensor, timer.
2. Deice operation time chart
Notes
• During deice operation, as relationship for outdoor piping temperature and time T5, the priority given to the condition
which is first fulfilled and shift to the next mode.
• First deice after operation restricted to 60 min. & above.
• No restart operation if compressor OFF for sequence No. 8, 9.
• No restart operation if compressor OFF for sequence No. 8, 9.
(Instantaneous, restart)
Outdoor heat exchanger temperature
a
15°C
b
18°C
c
25°C
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
3. Explanation of operation
1) At the deice starting signal, the compressor frequency is set to the value as previously mentioned.
2) At 120 sec. after deice starting signal generated, 4 way valve OFF and at the same time outdoor fan is OFF, indoor fan is OFF,
compressor frequency is set to the previously mentioned value.
3) WIthin 30 sec. after the 4 way valve OFF, the compressor frequency is set to the previously mentioned value.
4) If the outdoor heat exchanger temperature is above a°C, the compressor frequency is set to the value as previously mentioned.
5) After the compressor frequency is changed according to the item 4), in case either outdoor heat exchanger temperature more than b°C
or 10.5 minutes lapsed after 4 way valve OFF is fulfilled, 30 sec. calculation start.
6) After 5) operated, if the outdoor heat exchanger temperature is more than c°C or 30 sec. lapsed, deice operation completion signal
transmit, the compressor frequency is set to the previously mentioned value. And timingly ON signal transmit on outdoor FM.
7) After 59 sec. lapsed after deice operation completion signal generated, 4 way valve/indoor fan is ON, compressor frequency become
FREE, and recover to normal heating operation.
4. Deice operation judgement condition
When any of below a, b, c, d condition is satisfied, deice signal is produced.
a. Continuously, outdoor heat exchanger temperature < 3°C for 120 minutes and outdoor heat exchanger temperature
< -6°C for 3 minutes and outdoor air temperature > -1°C and Comp. is ON.
b. Continuously, outdoor heat exchanger temperature < 3°C for 80 minutes and outdoor heat exchanger temperature
< -7°C for 3 minutes and outdoor air temperature > -1°C and Comp. is ON.
c.
Continuously, outdoor heat exchanger temperature < 3°C for 40 minutes and outdoor heat exchanger temperature
< -9°C for 3 minutes and outdoor air temperature
< -9°C for 3 minutes and outdoor air temperature
-3°C and Comp. is ON.
d. Continuously, outdoor heat exchanger temperature < 3°C for 40 minutes and outdoor heat exchanger temperature
< -11°C for 3 minutes and outdoor air temperature < -3°C and Comp. is ON.
However, the first deice will start only after minimum of 60 minutes in operation.
(2nd deice and onward shall follow above conditions)
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
9 Operating Instructions
• Ventilate the room regularly.
• Pay attention as to whether the
installation rack is damaged after long
period of usage.
period of usage.
• Switch off the power supply before
cleaning or servicing.
• Turn off the power supply if the unit is not
used for a long period of time.
Caution
• Use specifi ed supply cord.
• If the supply cord is damaged or needed
to be replaced, it must be replaced by
the manufacturer or its service agent or
a similarly qualifi ed person in order to
avoid a hazard.
the manufacturer or its service agent or
a similarly qualifi ed person in order to
avoid a hazard.
• Remove the batteries if the unit is not
going to be use for a long period of time.
• New batteries of the same type must be
inserted following the polarity stated to
prevent malfunction of the remote control.
prevent malfunction of the remote control.
• In case of emergency or abnormal
condition (burnt, smell, etc) occurs, turn
off the power supply.
off the power supply.
Warning
The appliance is not intended for use by young children or infi rm
person without supervision. Young children should be supervised to
ensure that they do not play with the appliance.
person without supervision. Young children should be supervised to
ensure that they do not play with the appliance.
Thank you for purchasing Panasonic Air Conditioner
SAFETY PRECAUTIONS
■ Definition
Safety Regulation
Operation Condition (
O
C)
Use this air conditioner under the following temperature
range.
range.
DBT: Dry Bulb Temperature
WBT: Wet Bulb Temperature
WBT: Wet Bulb Temperature
Indoor
Outdoor
DBT
WBT
DBT
WBT
Maximum Temperature (COOL)
32
23
43
26
Maximum Temperature (HEAT)
30
–
24
18
Minimum Temperature (COOL)
16
11
16
11
Minimum Temperature (HEAT)
16
–
-5
-6
This sign warns of death
or serious injury.
To prevent personal injury,
injury to others and property
damage, the following
instructions must be
followed.
injury to others and property
damage, the following
instructions must be
followed.
Incorrect operation due to
failure to follow instructions
will cause harm or damage,
the seriousness of which is
classifi ed as below:
failure to follow instructions
will cause harm or damage,
the seriousness of which is
classifi ed as below:
This symbol denotes
an action that is
PROHIBITED.
Caution
• This air conditioner must be earthed. Improper grounding will cause electric shock.
• Ensure that the drainage piping is connected properly. Otherwise, water will leak.
• Current leakage protection equipment must be installed. Otherwise, electric shock or fi re may
occur.
• Do not install the unit in a potentially explosive atmosphere.
Warning
Do not install, remove and reinstall the unit by yourself.
• Improper installation will cause leakage, electric shock or fi re. Please consult an authorized dealer or
specialist for the installation work.
These symbols denote
actions that are
COMPULSORY.
Warning
This sign warns of injury
or damage to property.
Caution
The instructions to be
followed are classifi ed by
the following symbols:
followed are classifi ed by
the following symbols:
Installation Precautions
Installation Precautions
• Do not wash the unit with water, benzene,
thinner or scouring powder.
• Do not use for other purposes such as
preservation of food.
• Do not use any combustible equipment at
airfl ow direction.
• Do not sit or place anything on the indoor
or outdoor unit.
• Do not expose directly to cold air for a
long period.
Operation
Operation Precautions
Precautions
• Do not share power outlet.
• Do not modify power cord.
• Do not use an extension cord.
• Do not operate with wet hands.
• Do not insert fi nger or other objects into the
indoor or outdoor unit.
• Do not attempt to repair the unit by
yourself.
• Do not use rechargeable (Ni-Cd) batteries.
• Keep the remote control away from infants
and small children to prevent them from
accidentally swallowing the batteries.
accidentally swallowing the batteries.
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CS-E9DKDW CU-E9DKD / CS-E12DKDW CU-E12DKD
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