Appendix A - Dip Switch Settings - Carrier 40VMU012 Installation And Maintenance Instructions Manual

There are 2 DIP switches on the main board. Figures A and
B show the settings for each parameter controlled by a switch.
Switches are shown in the default settings.
v
ON
OFF
1 2 3 4
a40-1923
POSITION 1 — START-UP
OFF — Auto Addressing Mode (Default)
ON — Factory Test Mode
ON
OFF
1 2 3 4
a40-1923
POSITION 2 —
OFF — Normal Mode (Default)
ON — Factory Self-Checking Mode
ON
OFF
1 2 3 4
a40-1923
POSITION 3 — NOT USED
ON
OFF
1 2 3 4
a40-1923
POSITION 4 — INDOOR UNIT IDENTIFICATION
OFF — Standard Indoor Unit (Default)
Mode Priority Indoor Unit (HP only)
ON —
(IDU address must be 63)
Fig. A — SW1 Settings
APPENDIX A — DIP SWITCH SETTINGS
18
ON
OFF
1 2
a40-1925
POSITION 1, 2 — NOT USED
Fig. B — SW8 Settings
Terminal J1 is located on the main control board. The de-
fault setting for J1 is no jumper, Auto Restart. When J1 jumper
is in place, the setting is Manual Restart.
The manual button is located on the display board. The de-
fault display is Fahrenheit. To change from Fahrenheit to Cel-
sius, press the button and hold for 5 seconds.