CONTROL WIRING DIAGRAMS
General
YHMY range – electrical connections
Terminal arrangement
Electrical connections with York wall-mounted controls
• Manual switchover of the 3 fan speeds
• Manual switchover of the season cycle (SUM-WINT)
• Fan thermostation (ON-OFF)
• Water valve thermostation(ON-OFF) (continual ventilation)
• Possibility of applying the minimum TME sensor
• Possibility of controlling season cycle switchover (SUM-
WINT) either through a remote electric phase signal (cen-
tral) or in the automatic mode with a built-in CHANGEO-
VER switch in contact with the water pipework (two-pipe
system); for this set-up the jumper on the control board
must be re-positioned (see instruction sheet accompany-
ing the control).
• Identical features to the TR, but with the addition of:
• Manual switchover of the 3 fan speeds
• Fan thermostation (ON-OFF)
• Water valve thermostation (ON-OFF)
• Thermostation(ON-OFF) on the valves and motor simul-
taneously
• Automatic Summer/Winter changeover through a remo-te
electric phase signal (central) or in the automatic mode
with a built-in CHANGEOVER switch in contact with the
water pipework (two-pipe system).
Identi
fi
cation
Code
TR
9060541
Identi
fi
cation
Code
ATR
9060542
Minimum speed
Medium speed
Maximum speed
YHMY
N
2
4
5
20
°
°
C
4 2 N
5
MC3
MC2
MC1
2
1
3 4 5 6
2
1
7
2
1
8
L
N
PE
CH
E
CH
PE
N
L
8
1
2
7
1 2
6
5
4
3
1
2
MC1
MC2
MC3
2
5
N
4
TR without valves
TR with 1 valve
YHMY
YHMY
TR
TR
4 2 N
5
MC3
MC2
MC1
2
1
3 4 5 6
2
2
1
1
L
N
PE
CH
E
CH
PE
N
L
1
2
1 2
6
5
4
3
1
2
MC1
MC2
MC3
5
N
2
4
ATR without valves
ATR with 1 valve
YHMY
YHMY
ATR
ATR
20
°
°
C
GB
7
