PLFY-32
PLFY-P-NCMU-ER4, -NBMU-E2 (November 2015)
© 2015 Mitsubishi Electric US, Inc.
8-7. External Heater Adapter CN24RELAY-KIT-CM3
8. OPTIONAL PARTS
External heater adaptor CN24RELAY-KIT-
CM3 is a set of special wiring parts for controlling the electric heater* with the air c
o
nditioner system
.
*The electric heater should be designed and prepared at the site
.
A
basic connection method is shown as follows:(For details, refer to its Installation Manual.)
Item
External output cable
Fan speed setting cable
with resistance
Quantity
2
2
Shape
Refer to the Installation Manual for wiring and installation details.
For rela
y X use the specifications given below Oper
ation coil
Rated voltage : 12VDC
Pow
er consumption : 0.9W or less
The length of the electr
ical wir
ing for the CN24RELAY-KIT-
CM3 is 2 meters (6-1/2 ft)
To extend this length, use sheathed 2-core cable.
Control cab
le type :
CVV, CVS, CPEV or equivalent.
Cable size : 0.5 mm
2
~ 1.25 m
m
2
(16 to 22 AWG)
Don't extend the cab
le more than 10 meters (32ft)
Recommended circuit
CN24
X
X
Remote control Board
Rel
ay
circuit
Adapter
Indoor unit
control board
Outdoor unit
control board
Electr
ic Heater
po
w
er source
Electric
Heater
Red
1
White 2
Preparations in the field
Maximum cable length
is 10 m (32ft)
Whit
e
FS1
FS2
FS1
FS2
R
S
R
S
CN24
H2
88H
H1
88H
26H
88H
Wiring diagram
1-phase po
wer
supply
208V, 230V/60Hz
Control board
FS1, 2 ----- Thermal fuse
H1, H2 ----- Heater
26H --------- Overheat protection
thermostat
88H --------- Electromagnetic contactor
PUHY,PURY-P-TGMU
SW5-2 "ON"
PUHY,PURY-P-T/YHMU
SW5-10 "ON"
PUMY series
SW4-4 "ON"
PUHY,PURY-P-T/YJMU
SW5-10 "ON"
PUHY,PURY-HP-TJMU
SW5-10 "ON"
