Carrier 40MAHBQ30XA3 - Diagnosis and Solution; EEPROM Parameter Error Diagnosis

40MAHB-01SI Specifications subject to change without notice. 17
WIRED REMOTE CONTROL
INSTALLATION
The wired remote controller comes with the following items:
• A set of installation instructions and owner's manuals
• 3 M4X20 Screws to mount on the wall
• 4 wall plugs to mount on the wall
• 2 M4X25 to mount on switch box
• 2 plastic screw bars to fix on switch box
• 1 set of batteries
• 1 set of connecting wires to connect to indoor unit’s main board
Fig. 34 — Wired Controller
To connect the wired remote controller to the indoor units, connect to
the 4-pin connector located on the display board.
To connect the wired remote controller to the indoor units:
1. Replace the display board with the shipped with the kit.
2. Install the adapter board (shipped with the kit).
3. Connect the adapter board to the new display board. Follow the
instructions on the wired controller installation instructions manual
for more details.
4. Connect the female molex plug on the adapter board to the male
molex plug from the extension cable shipped with the kit.
5. Connect the extension cable to the wired controller
For setup instructions, refer to the controller installation manual.
START-UP
Test Operation
Perform a test operation after completing a gas leak and electrical
safety check (see Fig. 35).
Fig. 35 — Test Operation
1. Push ON/OFF on the remote control to begin testing.
NOTE: A protection feature prevents the air conditioner
from activating for approximately 3 to 4 minutes.
2. Push MODE, select COOLING, HEATING, FAN mode to check
that all functions work correctly.
3. To run the test using the MANUAL button on the indoor unit:
a. Open the front panel of the indoor unit;
b. Push MANUAL once to energize the unit. The set
conditions for manual operation are as follows:
•Preset set point: 76
F (24C)
•Fan speed: AUTO
•Discharge air direction: Pre-set position based on operation
in the COOL or HEAT mode.
4. Set the MANUAL button to OFF (by pushing it twice again) after
completing the test operation.
Manua
l control
button
AUTO/COOL