Switch Settings; Test Run - Mitsubishi Electric PAC-SF29LB Manuel D'installation

8-5. Switch settings

(1) Before turning on the power of the indoor unit, be sure to set the following switches. If the switches are not set or if the setting are
incorrect, the device will not operate properly.
(2) After setting the switches, turn the indoor unit, R-Converter unit, and outdoor unit on in that order.
(3) In case capacity code setting or address setting is mistaken, reset it , turn off power supply of the outdoor unit, R-Converter unit and
indoor unit for 2 minutes or more at the same time and turn on power supply again in the order of (2).
Switch Pole
Capability
description
Btu
07
SW2
Capacity 1 ~ 6 08
code
09
10
12
13
SW11
Indoor unit addresses setting switch
Address
SW12
setting
Digits of one
Rotary
switch
SW12
Digits of ten
Address
(2ND Digit)
setting
Digits of ten

9. Test Run

Caution:
Before operating the unit, check that the wiring, piping, and thermistors are installed and that the switches have been set.
Refer to the "Test run" section of the indoor units and outdoor unit installation manuals.
After installation of an indoor unit, R-Converter unit, and outdoor unit, begin a test run to check water leaks in the R-Converter unit.
Be sure to perform a test run in cooling mode for each indoor unit installed. Make sure that each indoor unit operates properly following the
installation manual supplied with the unit.
If a test run is performed on all indoor units at once, improper connection of the refrigerant pipes and the indoor and outdoor unit connecting wires
cannot be detected.
Caution:
• Always use the remote controller to operate the indoor unit.
• When using an R-Converter unit, operation from the outdoor unit is not possible.
• The following symptoms are not malfunctions.
Symptom
Indoor unit does not operate even if set to cool-
ing (heating) operation
Indoor unit fan stops during heating operation
* See the operation manual of indoor units for details.
** This mode is activated for approximately 1 minute to help avoid an insufficient supply of refrigerant during heating operation when refrigerant is
stored in an indoor unit that has been turned off or thermo-off.
• A hissing noise can be heard immediately after the air conditioner is started or stopped. This is the sound of the refrigerant flowing inside R-
Converter unit. The problem is insignificant.
Operate according to switch operation
Capability
SW2
description
HP Btu
15
ON
– 17
OFF
1 2 3 4 5 6 18
ON
1 24
OFF
1 2 3 4 5 6
ON
1.6 30
OFF
1 2 3 4 5 6
SW11
Digits of one
(1ST Digit)
The cooling (heating) operation cannot be operated when the cooling
(heating) operation of another indoor unit is operating.
The fan stops during defrosting operation.
Fan stops when the refrigerant collecting mode ** is activated.
When this occurs, the vanes close.
SW2
Set the capacity setting of the R-Converter unit equal
HP
to the capacity setting of the indoor unit.
ON
2
Settings made at the factory
OFF
1 2 3 4 5 6
ON
2.5
OFF
1 2 3 4 5 6
ON
–
OFF
1 2 3 4 5 6
Settings made at the factory
Cause
Remarks
R-Converter unit controller board
ON
OFF
1 2 3 4 5 6
Addresses setting on board
SW12 SW11
Indoor unit LED display *
Stand by
(For Multi System)
–
Stand by
(For Multi System)
13