Using The Remote Controller - Carrier MMY-MAP0724FT9UL Service Manual

NOTE
(1) When setting the line address from the remote controller, do not use addresses 29 and 30.
Addresses 29 and 30 cannot be set up on the outdoor unit. If they are incorrectly used, the code "E04"
(indoor/outdoor communication circuit error) is output.
(2) When manual address setup has been done from a remote controller, and central control over refrigerant
lines is to be done, setup the header unit of each line as follows:
• Using SW13 and SW14 on the interface PC board of the header unit of each line, setup the line address
for each line.
• Except for the line with the smallest line address number, set SW03-bit 2 to "off" for the interface PC
board of the header unit of lines connected to the same central control (put the resistance of the end
terminals of the central control line, indoors and outdoors, into one).
• Connect the relay connector between U1/U2 and U3/U4 of the header unit for each refrigerant line.
• After that, set up the central control address. (For central control address setup, refer to the installation
manual of the central control devices.)
Confirming the indoor unit addresses and the position of an indoor unit

using the remote controller

Confirming the numbers and positions of indoor units
To see the indoor unit address of an indoor unit which you know the position of
When the unit is individual (the indoor unit is paired with a wired remote controller one-to-one),
or it is a group-controlled one.
(Execute it while the units are running.)
1
Push the
2
Push the
UNIT LOUVER
1-1
A unit numbers
shows the system address and indoor unit address of the unit.
When 2 or more indoor units are connected to the remote controller (group-controlled units), a number of
other connected units appears each time you push the
TEMP.
TIMER SET
TIME
FILTER
RESET TEST SET CL
button if the units stop.
button (left side of the button).
is indicated on the LCD (it will disappear after a few seconds). The indicated number
CODE No.
UNIT No.
˚F
1
ON / OFF
Starts
running
2
button (left side of the button).
UNIT LOUVER
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