McQuay MDS030AR Applications Manual page 42

Design & installation Guide For McQuay MDS Multi System
PTC
DB3A
-42-
Model MDS060AR(220V~/50Hz)
L
FU
1L1 3L2 5L3 21
KM
2T1 4T2 6T3 22
C
Shaft
white
heater
R
CM
13 M
C1
~
S C2
14
white
black
Compressor
Fan 1
Description of components and parts:
Symbol Description Symbol Description
PTC Compressor start-up unit FU Fuse
4WV Four-way valve EXV Electric expansion valve
KM Contactor PWMV Solenoid valve
C1-2 Capacitor LP Low pressure switch
HP High pressure switch
RC Surge suppressor
K1-3
Relay
Model MDS060AR(380V/3N~/50Hz)
R S T
FU
KM
OL
T2 17
white
T1 T3
M M
~ C1 ~
Shaft
heater
18
black
Digital
Fan 1
compressor
Description of components and parts:
Symbol Description Symbol Description
FU Fuse
DB3A Reverse phase-loss protector
4WV Four-way valve EXV Electric expansion valve
KM Contactor PWMV Solenoid valve
C1-2 Capacitor OL Overload protector
K1-3 Relay LP Low pressure switch
HP High pressure switch RC Surge suppressor
2
K3
19
K2
18
K1
17
LIVE
NEUTRAL
N
Trans-
former
white
15 M
~
C3
16
black
Fan 2
Connecting indoor
unit communication
Jumper settings DIP switch J2 setting:
JP1 JP2
J2.6
OFF OFF OFF
DIP switch J1 settings:
Notes:
1: -----------Field wiring
J1.1 J1.2 J1.3 J1.4
J1.5 J1.6 J1.7
2: --------------
3: J2.1~2.5 sets the internetworking control address
OFF OFF OFF OFF OFF ON OFF
4: If the unit connected at the end of the bus,JP1,JP2 is on.
L
K3
23
K2
22
K1
21
LIVE
L1
N NEUTRAL
Trans-
19 former
white
M
C2 ~
20
black
Fan 2
Connecting indoor
unit communication
Overload setting&Jumper settings: DIP switch J2 setting:
OL JP1 JP2 J2.6
14.0A OFF OFF OFF
DIP switch J1 settings:
Notes:
1: -----------Field wiring
J1.1 J1.2 J1.3 J1.4
J1.5 J1.6 J1.7
2: --------------
3: J2.1~2.5 sets the internetworking control address
OFF OFF OFF OFF OFF ON OFF
4: If the unit connected at the end of the bus,JP1,JP2 is on.
RC
EXV PWMV 4WV K1 K2
KM
4 5 7 8
3
RY1 RY2 RY3 RY4 RY5
J2
TRAN-H
McQuay
CN1
TRAN-L
J1
JP1 JP2
A B GND
AI-IN
Air discharge temperature sensor of the digital compressor(TH1)
Factory wiring
DB3A
71
81
RC
EXV PWMV
4WV KM K1 K2
2 3 5 7
1
RY1 RY2 RY3 RY4 RY5
J2
TRAN-H
McQuay
CN1
TRAN-L
J1
JP1 JP2
B GND
A
AI-IN
Air discharge temperature sensor of the digital compressor(TH1)
Factory wiring
K3
10
RY6 RY7
NEUTRAL
OV-COMP3
OV-COMP2
OV-COMP1
LP LP
11
HP
HP
12
Coil outlet
temperature sensor(TH6)
Coil middle temperature sensor(TH5)
Coil inlet temperature sensor(TH4)
Return air temperature sensor(TH3)
Ambient temperature sensor(TH2)
K3
8
RY6 RY7
NEUTRAL
OV-COMP3
OV-COMP2
OV-COMP1
12 OL
LP
LP
15
HP
HP
16
Coil outlet
temperature sensor(TH6)
Coil middle temperature sensor(TH5)
Coil inlet temperature sensor(TH4)
Return air temperature sensor(TH3)
Ambient temperature sensor(TH2)