Mitsubishi Electric CITY MULTI PUMY-P112VKM6 Service Manual page 87

Bit Function
1 Select operating
system startup
2 Clear connection
information
3 Clear error history
4 Pump down
5 -
6 -
■ SW3: Trial operation
Initial setting
ON
OFF
1 2
The black square (■) indicates a switch position.
Bit Function
1 ON/OFF from outdoor
unit
*1
2 Mode setting
*1. Test run on PWFY series cannot be run by the outdoor unit. Use a switch on the indoor unit or a remote controller to
perform test run.
■ SW4/SW8: Model switch
Model selection
MODEL
PUMY-P112VKM6
PUMY-P125VKM6
PUMY-P140VKM6
The black square (■) indicates a switch position.
Bit When to set
1-6 Before the power is turned ON.
■ SW5: Function switch
Initial setting
ON
OFF
1 2 3 4 5 6 7 8
The black square (■) indicates a switch position.
Bit Function
1 Demand control setting
for Australia
*2
2 Change the indoor
unit's LEV opening at
startup
3 -
4 -
5 Change the indoor
unit's LEV opening at
defrost
6 Decreasing the target
sub cool (Heating
mode)
OCH790 _87
Operation in each switch setting
ON OFF When to set
With Without Before turning
centralized centralized the power ON
controller controller
Activated Deactivated Before turning
the power ON
Activated Deactivated OFF to ON
under suspen-
sion after the
power is turned
on.
Activated Deactivated While the
compressor is
running
- - -
- - -
Operation in each switch setting
ON OFF When to set
Activated Deactivated Any time after the power
is turned ON.
Heating Cooling
SW9
SW4 SW8
PUMY-P112YKM5
PUMY-P125YKM5
PUMY-P140YKM5
Operation in each switch setting
ON OFF When to set
Activated Deactivated Any time
Activated Deactivated Any time
- - -
- - -
Activated Deactivated Any time
Activated Deactivated Any time
Purpose Additional information
Turn ON when the centralized • SW2-1 must be turned ON if a centralized control-
controller is connected to the ler is connected to the system. An example of this
outdoor unit. would be a TC-24, EB50A, AG150, AE50 or
AE200. If SW2-1 is OFF, while using a centralized
controller, in rare circumstances problems may be
encountered such as indoor units not responding
to group commands.
• Group setting of 2 or more A-IC units which are
connected to branch box via centralized controller
is not allowed.
To clear connection informa- • Clear connection information when relocating units
tion. or connecting additional units.
To clear error history.
To facilitate outdoor unit the Refer to a section referring to the pumping down on
pumping down operation. outdoor units Installation Manuals. It might not be
Frequency = Fixed to 65 Hz possible to collect all the refrigerant if the amount is
Indoor-linear expansion valve excessive.
= Fully open Do not perform pump down work when there is a gas
Outdoor fan step = Fixed to 10 leak. The intake of air or other gases causes
abnormally high pressure in the refrigeration cycle,
which may cause explosion or injury.
-
-
MODEL SW4 SW8
Purpose
Turn ON to activate the demand control for
Australia.
To set the LEV opening at startup higher
than usual (+150 pulses). To improve the
operation with the LEV almost clogged.
-
-
To set the LEV opening higher than usual
during defrosting operation. (Only Qj ≤ 10
is valid, + 300 pulses) To avoid the
discharge temperature increase and
provide efficient defrosting operation.
To reduce the discharge temperature
decrease due to refrigerant liquid accumu-
lation in the units.
-
-
-
SW9
Additional information
(Do not turn this ON if the unit is in
outside Australia)
The refrigerant flow noise at startup
become louder.
-
-
The refrigerant flow noise during the
defrosting operation become louder.
A refrigerant flow noise might be generat-
ed if the sub cool value is too small.