[
VII
Microprocessor Control ]
- 17 -
HWE08010
GB
Reference (not applicable to the ducted models)
This is applicable only to the R410A series. Make the settings for the following dip switches on the indoor unit control board
before switching on the power.
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 air conditioner.
(1) Parts list
Check that the following parts are included in the package.
1) External output cable (with a yellow connector).............................2 in total
Two types of cables with different connectors are included.
2) Panel heater connector.................................................................. 3 in total
White: 1
Green: 2 (2 types)
(2) Connection to the indoor unit
Use the cables that fit the connectors on the indoor unit control board. The items listed in this parts list cannot be used with
the following models.
PMFY-BM
PMFY-AM
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 heater. Connect the
cable to CN24 on the indoor unit control board.
2) Panel heater connector (with a green connector)
This connector is used to perform an interlocked operation with a panel heater. Depending on the indoor unit control board
specification, connect the cable either to CN4Y or CN22 as appropriate.
(3) Locally procured wiring
A basic connection method is shown below.
1) PEFY-P-NMSU-E and other models
Pattern
NON duct unit (PL/PK/PC)
CN4Y for FAN control (YU25) *3
DIP S/W (Indoor unit)
Fan in defrost
1
N/A
N/A
Stop (Heater ON)
*3 Refer to Section 5 "Dipswitch Setting" for further information about each switch.
CN4Y for FAN control
(PAC-YU25HT)
<Image>
CN24
CN22
X
X
Remote control board
Relay circuit
Adapter
Indoor unit
control board
Outdoor unit
control board
r
et
a
e
H
cir
t
c
el
E
e
cr
u
o
s
r
e
w
o
p
Electric Heater
or panel
heater
Red
1
White
2
• PUHY, PURY-P-
TGMU type Dip
switch SW5-2
“ON”
• PUHY, PURY-P-
YHMU type Dip
switch SW5-10
“ON”
• PUMY series Dip
switch SW4-4
“ON”
Preparations in the field
Maximum cable length
is 10 m (32ft)
w
oll
e
Y
eti
h
W
White
1
Dip switch SW3-2 “ON”
(applicable only when a panel
heater is connected)
3
CN4Y
Содержание City Multi PEFY-P06NMSU-E
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