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2. CN24RELAY-KIT-CM3 (Optional Parts) installation
6-3. PAC-YU25HT (Optional Parts) installation
The following section describes installation of the External Heater Adapter that connects to CITY MULTI air
conditioner R410A series indoor unit. This products is the special wiring parts to drive an electric heater with the
The following section describes installation of the External Heater Adapter that connects to PEA-A AA
air conditioner.
series indoor unit. This products is the special wiring parts to
(1) Parts list
(1) Parts list
Check that the following parts are included in the package.
•
Check that the following par
1) External output cable.............................2 in total
1) External output cable (with a yellow connector).............................2 in total
Two types of cables with different connectors are included.
Tw o types of cables with differen
2) Panel heater connector...........
2) Panel heater connector..........................3 in total
White: 1
White: 3
Green: 2 (2 types)
(2) Connection to the indoor unit
(2) Connection to the indoor unit
Use the cables that fit the connectors on the indoor unit control board.
•
Use the cables that fit the connectors on
1) External output cable
1) External output cable (with a yellow connector)
This cable is used to connect a relay circuit for an interlocked operation with either an electric or a panel
This cable is used to connect a rela
heater.Select the heater output pattern (1st =CN24-1 or 2nd = CN24-2) to use, and connect the cable to the
C onnect the cable to CN24 on the
connector on the indoor unit control board that corresponds to the selection.
2) Panel heater co
1) Panel heater connector
This connector is used to perform
This connector is used to perform an interlocked operation with a panel heater. Depending on the indoor unit
control board specification
control board specification, connect the cable to CN22 as appropriate
<Image>
CN4Y for FAN control
(CN24RELAY-KIT-CM3)
(3) Wiring
A basic connection method is shown below.
Remote control board
Electric Heater
or panel
heater
Specifications are subject to change without notice.
ts are included in the package.
t connectors are included.
...................................................
the indoor unit
y circuit for an interlocked operati
indoor unit control board.
nnector (with a white connector)
an interlocked operation with a p
, connect the cable to CN4Y as appropriate
Relay circuit
X
X
Preparations in the field
drive an electric heater wi
.... 3 in total
control board.
on with either an electric or a panel heater.
anel heater. Depending
Adapter
Red
1
White
2
White
1
3
(applicable only when a panel
heater is connected)
Maximum cable length
is 10 m (32ft)
26
14
th the air conditioner.
on the indoor unit
Indoor unit
control board
CN24
CN4Y
© 2017 Mitsubishi Electric US, Inc.
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