Functions And Factory Settings Of The Dipswitches - Mitsubishi Electric CITY MULTI PUHY-P108 Service Handbook

VII Control

[1] Functions and Factory Settings of the Dipswitches

1. Outdoor unit
(1) Main board
[PUHY]
Switch
SWU 1-2 Unit address setting
For self-diagnosis/op-
SW1 1-10
eration monitoring
Centralized control
1
switch
Deletion of connec-
2
tion information
Deletion of error his-
3
tory SW
Refrigerant amount
4
adjustment
SW2
5
6
7 Forced defrost
8 Defrost timer setting
9
10
Test run mode: en-
1
abled/disabled
Test run mode: ON/
2
OFF
Defrost start tempera-
3
ture
Defrost end tempera-
4
ture
SW3
5
6 Pump down operation Normal control
Target condensing
7 temperature on the
heating mode Tcm
8
9 Unit model selection
10
Note: All are set to OFF at factory shipment. Unless otherwise specified, set the switch to OFF where indicated by "-,"
which may be set to a certain setting for a reason.
Function according to switch setting
Function
OFF
Set to 00 or 51-100 with the dial switch
Refer to the LED monitor display on the
outdoor unit board.
Without connec-
tion to the central-
ized controller
Normal control
Storage of IC/OC
error history
Normal control
- -
- -
Normal control
50 minutes
- -
- -
SW3-2 disabled
Stops all ICs
-10°C [14°F]
(-8 °C [18°F] for
126 model units
and above)
10°C [50°F]
(7°C [45°F] for 126
model units and
above)
- -
49°C [120°F]
- -
Refer to the next page
- -
- 139 -
ON OFF
Before power on
Anytime after power on
With connection to
the centralized Before power on
controller
Deletion Before power on
Deletion of IC/OC Anytime after power on (When
error history switched from OFF to ON)
Anytime after power on (Will be dis-
Refrigerant amount
abled 2 hours after compressor start
adjustment mode
up except during initial start up mode)
-
-
10 minutes after
Forced defrost
compressor start-
starts
up
Anytime after power on (When
90 minutes
switched from OFF to ON)
-
-
SW3-2 enabled Anytime after power on
Sends a test-run After power on and when SW3-1 is
signal to all IC on.
-7°C [19°F]
(-5 °C [23°F] for
Anytime after power on
126 model units
and above)
15°C [59°F]
(12°C [54°F] for Anytime after power on (except dur-
126 model units ing defrost operation)
and above)
-
Pump down opera- After power on and while compressor
tion is stopped
53°C [127°F] Anytime after power on
-
Before power on
-
[ VII Control ]
Switch setting timing
ON
-
-
Anytime after
power on (When
switched from
OFF to ON)
-
-
-
-
-