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Function
Function
Setting number
number
00 Disable
Standby
01 1 minutes
time for
auxiliary
02 2 minutes
equipment
71
⁞
⁞
operation
(external
98 98 minutes
heater 1)
99 99 minutes
00 Disable
Emergency
73
heat
01 Enable
00 1 minutes
01 50 seconds
Fan delay
74
time
02 40 seconds
03 30 seconds
External
00 Disable
heater use
75
in defrost-
01 Enable
ing. (*4)
Operating
00 Setting 0
temperature
01 Setting 1
switching
of external
77
02 Setting 2
heaters
03 Setting 3
(external
04 Setting 4
heater 2)
00 Disable
Standby
01 1 minute
time for
auxiliary
02 2 minutes
equipment
78
⁞
⁞
operation
(external
98 98 minutes
heater 2)
99 99 minutes
00 Disable
01 High
Minimum
02 Med
fan speed
79
setting
03 Low
*1: Auto restart is an emergency function such as for power failure etc.
Do not start and stop the indoor unit by this function in normal operation.
Be sure to operate by the control unit, converter or external input device.
*2: Inappropriate setting may cause an external device malfunction. Confirm whether all the
settings have been performed appropriately according to the installing condition.
*3: Function number 68 and 69 will be usable provided that the corresponding operating
device is connected.
*4: When using function number 75, inappropriate heater selection may cause cold air in
defrosting.
En-19
Default
Details
Sets the standby time until the
auxiliary equipment operation starts
⁞
during primary equipment operation.
Enables or disable of emergency
heat input.
Sets the fan delay time when the
heater is turned off.
Enables or disables the external
heater use in defrosting.
• Sets the temperature conditions
when the external heater is ON.
• For the temperature conditions, see
"Heater 2 ON/OFF temperature".
For a more detailed explanation,
see the Design & Technical manual
Sets the standby time until the
auxiliary equipment operation starts
⁞
during primary equipment operation.
• Setting the minimum fan speed
when the external heaters are
in-lined.
• When not using any external heat-
ers or the external heater is not
in-line, set to "00: Disable" and set
the "DIP switch SET 2 SW3" to "off.
Refer to "5.8.2 Indoor unit fan set-
ting for external heater".
Temperature conditions when the external heater is ON/OFF
Temperature (t) = Room temperature - set temperature
00
ON
00
t < -5.4°F (-3°C)
t ≥ -1.8°F (-1°C)
01
t < -3.6°F (-2°C)
t ≥ -1.8°F (-1°C)
02
t < -3.6°F (-2°C)
t ≥ -1.8°F (-1°C)
03
t < -5.4°F (-3°C)
t ≥ -1.8°F (-1°C)
04
t < -7.2°F (-4°C)
t ≥ -1.8°F (-1°C)
05
t < -9.0°F (-5°C)
t ≥ -1.8°F (-1°C)
06
t < -5.4°F (-3°C)
t ≥ -0.9°F (-0.5°C)
07
t < -3.6°F (-2°C)
t ≥ -0.9°F (-0.5°C)
08
t < -3.6°F (-2°C)
t ≥ -0.9°F (-0.5°C)
09
t < -5.4°F (-3°C)
t ≥ -0.9°F (-0.5°C)
10
t < -7.2°F (-4°C)
t ≥ -0.9°F (-0.5°C)
11
t < -9.0°F (-5°C)
t ≥ -0.9°F (-0.5°C)
12
t < -5.4°F (-3°C)
t ≥ 0°F (0°C)
13
t < -3.6°F (-2°C)
t ≥ 0°F (0°C)
14
t < -3.6°F (-2°C)
t ≥ 0°F (0°C)
15
t < -5.4°F (-3°C)
t ≥ 0°F (0°C)
16
t < -7.2°F (-4°C)
t ≥ 0°F (0°C)
17
t < -9.0°F (-5°C)
t ≥ 0°F (0°C)
Heater 2 ON/OFF temperature
00
01
Set value of function: 77
02
03
04
7. TEST RUN
7.1. Test run using outdoor unit (PCB)
Refer to the installation manual for the outdoor unit if the PCB for the outdoor unit is to be
used for the test run.
7.2. Test run using remote controller
• Refer to the installation manual for the remote controller to perform the test run using the
remote controller.
• When the air conditioner is being test run, the Operation and Timer indicator lamp blink
slowly at the same time. (Only if an optional IR receiver unit is connected.)
8. CHECK LIST
Pay special attention to the check items below when installing the indoor unit(s). After instal-
lation is complete, be sure to check the following check items again.
Check items
Has the indoor unit been installed correctly?
Has there been a check for gas leaks (refrigerant
pipes)?
Has heat insulation work been completed?
Does water drain easily from the indoor units?
Is the voltage of the power source the same as
that indicated on the label on the indoor unit?
Are the wires and pipes all connected completely?
Is the indoor unit grounded (earthed)?
Is the connection cable the specified thickness?
Are the inlets and outlets free of any obstacles?
Does start and stop air conditioner operation by
remote controller or external device?
After installation is completed, has the proper op-
eration and handling been explained to the user?
Set value of function: 61
01 to 09
OFF
ON
t ≤ -0.9°F (-0.5°C)
t ≥ +0.9°F (+0.5°C)
t ≤ -1.8°F (-1°C)
t ≥ +0.9°F (+0.5°C)
t ≤ -3.6°F (-2°C)
t ≥ +0.9°F (+0.5°C)
t ≤ -5.4°F (-3°C)
t ≥ +0.9°F (+0.5°C)
t ≤ -7.2°F (-4°C)
t ≥ +0.9°F (+0.5°C)
t ≤ -9.0°F (-5°C)
t ≥ +0.9°F (+0.5°C)
t ≤ -0.9°F (-0.5°C)
t ≥ 0°F (0°C)
t ≤ -1.8°F (-1°C)
t ≥ 0°F (0°C)
t ≤ -3.6°F (-2°C)
t ≥ 0°F (0°C)
t ≤ -5.4°F (-3°C)
t ≥ 0°F (0°C)
t ≤ -7.2°F (-4°C)
t ≥ 0°F (0°C)
t ≤ -9.0°F (-5°C)
t ≥ 0°F (0°C)
t ≤ -0.9°F (-0.5°C)
t ≥ -0.9°F (-0.5°C)
t ≤ -1.8°F (-1°C)
t ≥ -0.9°F (-0.5°C)
t ≤ -3.6°F (-2°C)
t ≥ -0.9°F (-0.5°C)
t ≤ -5.4°F (-3°C)
t ≥ -0.9°F (-0.5°C)
t ≤ -7.2°F (-4°C)
t ≥ -0.9°F (-0.5°C)
t ≤ -9.0°F (-5°C)
t ≥ -0.9°F (-0.5°C)
Set value of function: 61
00
01 to 09
0°F (0°C)
1°F (0.5°C)
0°F (0°C)
2°F (1.0°C)
3°F (1.5°C)
4°F (2.0°C)
If not performed correctly
Vibration, noise, indoor unit
may drop
No cooling, no heating
Water leakage
Water leakage
No operation, heat or burn
damage
No operation, heat or burn
damage
Short circuit
No operation, heat or burn
damage
No cooling, No heating
No operation
OFF
Check
box
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