York YHMH 20 - Page 30

YHMY range – electrical connections
Electrical connections of several appliances with York wall-mounted controls.
At the most 4 appliances of the same capacity can be connected together.
KEY
YHMY YHMY board
TR TR control board
ATR ATR control board
TMM Remote season changeover
E Water solenoid valve (two-pipe system)
CH
PE
N
L
8 12712 6543 12
MC1 MC2 MC3
542N 542N 542N 542N
EEEE
MC3MC2MC1
213456217 218
L
N
PE
CH
TR without valves
TR with 1 valve
20° °C
YHMY
YHMY
YHMY
YHMY
YHMY
YHMY
YHMY
YHMY
TR
TR
542N 542N 542N 542N
MC3MC2MC1
213456 2211
L
N
PE
CH
EEEE
CH
PE
N
L
1212 6543 12
MC1 MC2 MC3
ATR without valves
ATR with 1 valve
20° °C
YHMY
YHMY
YHMY
YHMY
YHMY
YHMY
YHMY
YHMY
ATR
ATR
542N 542N 542N 542N
542N 542N 542N 542N
GB
8