Step 6 - Installing The Led Display Panel; Step 7 - Position And Connect Controller - Carrier 40VMA Series Installation And Maintenance Instructions Manual

Step 6 — Installing the LED Display Panel —
1. Insert the buckles into the grooves in the electronic
control box, and slide the display panel horizontally to
lock in place as shown in Figs. 18 and 19.
Fig. 18 —LED Display Panel
Fig. 19 —LED Display Panel Installation Location
2. The display panel has buckles on the bottom that are used
to secure it to the control box as shown in Fig. 19.
3. Connect the 10-core wire of the display board and control
board assembly through the wire aperture on the
electronic control box.
4. Connect the 5-core wire of the display board and wire
controller.
Fig. 20 —LED Display Panel Installed
Step 7 — Position and Connect Controller —
Wired controllers should be installed in a position that
maintains good temperature control:
• Position the thermostat approximately 48 inches above
floor level.
• Do not position thermostat where it can be directly
affected by the unit's discharge air-stream.
• Avoid external walls and drafts from windows and doors.
• Avoid positioning near shelves and curtains as these
restrict air movement.
• Avoid heat sources such as direct sunlight, heaters, dimer
switches, and other electrical devices.
• See Fig. 21 for an example of communication wire
connection.
CONTROL WIRING
1. The type of communication cable used is a 2-core
stranded shielded cable.
2. For IDU (indoor unit) and ODU (outdoor unit)
communication, use P, Q terminals. Shielded core should
be used for ground.
3. Wiring should be done according to wiring diagram.
Communication wire must not form a closed loop.
4.
Fig. 21 —Communication Wire Connection
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