Mitsubishi Electric PUHZ-SW160YKA Manual page 11

. Electrical ork
Notes: 1. Wiring size must comply ith the applicable local and national codes.
2. o er supply cables and the cables bet een nterface unit Flo temp. controller and outdoor unit shall not be lighter than polychloroprene sheathed
e ible cables. Design 6 24
. e sure to connect the cables bet een nterface unit Flo
allo ed .
ntermediate connections may result in communication errors. f
tion to ground or a poor electrical contact.
( f an intermediate connection is necessary be sure to take measures to prevent
4. nstall an earth longer than other cables.
. Do not construct a system ith a po er supply that is turned ON and OFF fre uently.
supply
Warning:
n case of A-control iring there is high voltage potential on the S terminal caused by electrical circuit
design that has no electrical insulation bet een po er line and communication signal line. Therefore please
turn off the main po er supply
energized. f isolator should be used bet een indoor unit and outdoor unit please use -pole type.
NDOO -OUTDOO ONNE T N A
Flat
Flat
S1 S2 S3
E
temp. controller and outdoor unit directly to the units (no intermediate connections are
ater enters at the intermediate connection point it may cause insuf cient insula-
S1
S2
S3
hen servicing. And do not touch the S1 S2 S terminals
E (SW16 2
2
2
.
ater from entering the cables.
S1
S2
S3
hen the po er is
*2