McQuay MDS030A Manual page 28

Model: MDS200/220/240B
380V/3N~/50Hz
R S
T2 T2 T2
T1 T3 T1 T3 T1 T3
M M M
~ ~ ~
Constant-speed Constant-speed Constant-speed
compressor 1 compressor 2 compressor 3
Descriptions of the components and parts:
Symbol Description
FU Fuse
PMW Solenoid valve
OL
Model: MDS200/220/240BR
380V/3N~/50Hz
R S
KM1 KM3 KM4
OL1
28 29 30
T2 T2 T2
T1 T3 T1 T3 T1 T3
M M M
~ ~ ~
Shaft Shaft Shaft
heater heater heater
Constant-speed Constant-speed Constant-speed
compressor 1 compressor 2 compressor 3
Descriptions of the components and parts:
Symbol Description
Fuse
FU
EXV2
expansion valve 2
EXV4
expansion valve 4
Solenoid valve
PMW
Overload protection
OL
T2
T1 T3 M M
M
~ ~
~
Digital compressor Fan motor 1 Fan motor 2
Model OL1 OL2 OL4 OL6 OL7 OL8
KM5 KM6 KM8
OL5
31
32
T2
T1 T3
M M
M
~ ~
~
Shaft
heater
Fan motor 1 Fan motor 2
Digital compressor
Model OL1 OL2 OL3 OL4 OL5 OL6 OL7 OL8
MDS200BR 14.0A 14.0A 14.0A 14.0A 1.9A 0.67A 1.9A 0.67A
MDS220BR 14.0A 14.0A 14.0A 14.0A 1.9A 0.67A 1.9A 0.67A
MDS240BR 14.0A 14.0A 14.0A 14.0A 3.3A 1.8A 3.3A 1.8A
TR
LOW-I HI-1 TH7
V1+
V1-
V2+
V2-
MDS-E
L
L
L
L1 HP 15
19
J1
Notes:
1: Field wiring
2:
Factory wiring
3:
S1.3~S1.8 set the number of indoor units. S2.1 sets the unit as a master/slave. For details of S2.4~S2.8, see the instructions.
FU L
EXV2
TR LOW-I HI-1 TH7 TH6
V1+
V1-
V2+
V2-
MDS-E
OL3 11
L
L
L
L1 HP 15
J1
Notes:
1: Field wiring
2: Factory wiring
3: S1.3~S1.8 set the number of indoor units. S2.1 sets the unit as a master/slave. For details of S2.4~S2.8, see the instructions.
page 27
LPT HPT
3
TH5 TH3 TH11 TH10 TH8 TH4 TH1 HI-U
MDS-M
S1 S2 S3
MDS-P
EXV1 EXV4
1 2
4 5 7 10
4WV KM1 KM4
EXV4
3
TH5 TH3 TH2 TH1
MDS-M
45
S1
MDS-P
EXV1 EXV4
1 2