Installation of indoor unit
EDUS281008
40
Installation of indoor / outdoor unit
3P250363-3B
English
16
Electric heater ON/OFF temperature setting
(12) -3
While in heating operation, the heater control (ON/OFF) is
•
conducted as shown below;
ON
Set temperature
OFF
<Ton: F
°
>
<Toff: F
°
>
Perform on-site setting using the remote controller.
•
Mode
No.
FIRST
CODE NO.
CODE
SECOND CODE NO.
01*
02
03
04
05
06
10 (20)
7
<Ton>
-7.2
-6.3
-5.4
-4.5
-3.6
-2.7
<Toff>
-3.6
-2.7
-1.8
-0.9
0
0.9
* factory set
SETTING FOR LOCAL SUPPLIED OPTION
10-6
Installation of the humidifi er, economizer and air
(1)
purifi er (UV lamp)
Humidifi er, economizer and air purifi er (UV lamp) are
•
sold separately. For the method of installation, refer to
the manual provided with each optional product.
WARNING
If the unit is installed with an electric heater, install the
•
optional product at a location where it is not exposed directly
to the heat from the electric heater. Direct exposure to heat
can result in an equipment malfunction or fi re.
Connect the wires
(2)
Run the wires through the low-voltage hole.
•
Connect the wires to the terminal block (10P) of the
•
product. The terminal Nos. for wire connection are
shown below. Refer to the information as needed.
Terminal Nos. are indicated on the name plate for the
terminal block.
T
ermina
l
b
lock (10P)
10
5
1
4
3
6
2
7
9
8
Terminal No.
Input/output signal
1, 2
Outputs: indoor unit ON signal. (AC 24V)
3, 4
Outputs: indoor unit cooling THERMO ON signal. (AC 24V)
5, 6
Receives input: Air purifi er operation ON signal. (dry contact)
Terminal No.
Input/output signal
7, 8
Receives input: Humidifi er operation ON signal. (dry contact)
9, 10
Receives input: Forced closure of Indoor Unit Electronic
Expansion Valve during cooling operation. (dry contact)
On-site setting of air purifi er/humidifi er
(3)
Mode No.
FIRST CODE NO.
01
02
03
14 (24)
4
FAN SPEED
UNDER
OPERATING
purifi er and
humidifi er
Refer to
remote
controller
setting
SPEED
H*
14 (24)
5
FAN RESIDUE
TIME FOR
HUMIDIFIER
30 [sec]
60* [sec]
120 [sec]
* factory set
SETTINGS FOR SEPARATELY SOLD ACCES-
10-7
SORIES
See the instruction manuals included with optional accesso-
•
ries for the necessary settings.
〈
When using a wireless remote controller
〉
A wireless remote controller address needs to be set when
•
using a wireless remote controller. See the installation
manual included with the wireless remote controller for
details on how to make the settings.
Perform a test run according to the outdoor unit’s installa-
tion manual.
The operation lamp of the remote controller will fl ash when a
•
malfunction occurs. Check the malfunction code on the
liquid crystal display to identify the point of trouble. An
explanation of malfunction codes and the corresponding
trouble is provided in “CAUTION FOR SERVICING” of the
outdoor unit.
If the display shows any of the following, there is a possibility
that the wiring was done incorrectly or that the power is not
on, so check again.
Remote control display
Content
“
” display
There is a short circuit at the FORCED
•
OFF terminals (T¹, T²).
“
U3
” display
The test-run has not been performed.
•
“
U4
” display
“
UH
” display
The power on the outdoor unit is off.
•
The outdoor unit has not been wired for
•
power supply.
Wiring is incorrect for the transmission
•
wiring and / or FORCED OFF wiring.
The transmission wiring is cut.
•
“
UF
” display
Reversed transmission wiring
•
No display
The power on the indoor unit is off.
•
The indoor unit has not been wired for
•
power supply.
Wiring is incorrect for the remote control-
•
ler wiring, the transmission wiring and /
or the FORCED OFF wiring.
The remote controller wiring is cut.
•
CAUTION
Always stop the test run using the remote controller to stop
•
operation.
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