External Heater Adapter Cn24Relay-Kit-Cm3 - Mitsubishi PLFY-P08NCMU-ER4 Manual

8. OPTIONAL PARTS

8-7. External Heater Adapter CN24RELAY-KIT-CM3

External heater adaptor CN24RELAY-KIT-CM3 is a set of special wiring parts for controlling the electric heater* with the air conditioner 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.)
Remote control Board
Electric
Heater
Preparations in the field
For relay X use the specifications given below Operation coil
Rated voltage : 12VDC
Power consumption : 0.9W or less
The length of the electrical wiring for the CN24RELAY-KIT-CM3 is 2 meters (6-1/2 ft)
To extend this length, use sheathed 2-core cable.
Control cable type : CVV, CVS, CPEV or equivalent.
Cable size : 0.5 mm ~ 1.25 mm
2
Don't extend the cable more than 10 meters (32ft)
Recommended circuit
1-phase power
supply
208V, 230V/60Hz
Wiring diagram
External output cable
Item
Quantity 2
Shape
Refer to the Installation Manual for wiring and installation details.
PLFY-32
PLFY-P-NCMU-ER4, -NBMU-E2 (November 2015)
Relay circuit
X
X
(16 to 22 AWG)
2
88H
FS1
R
S
FS2
88H
FS1
R
S
FS2
88H
Control board
CN24
Fan speed setting cable
with resistance
2
Indoor unit
Adapter control board
CN24
Red 1
White 2
Maximum cable length
is 10 m (32ft)
H1
H2
FS1, 2 ----- Thermal fuse
H1, H2 ----- Heater
26H
26H --------- Overheat protection
thermostat
88H --------- Electromagnetic contactor
Outdoor unit
control board
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"
© 2015 Mitsubishi Electric US, Inc.