McQuay MDS030A Manual page 21

Model: MDS040A
22 0 V~ /50 H z
L
1L1 3L 2 5 L 3
KM
2T1 4T2 6T 3
C
CM
R
C1 PT C
S
1 3
whit e
Com p resso r
Descri p tion of com p onents and p arts:
S y mbo l Descri p tio n S y mbo l
F U
PT C
Com p ressor start-u p unit
KM
C ontacto r
PWMV
C1- 3
LP
Ca p acito r Low p ressure switc h
HP
Hi g h pressure switc h
Model: MDS040AR
22 0 V~ /50 H z
L
3L 2 21
KM
2T1 4T2 22
b l ue r ed
C
S haf t
h ea t er
CM
R
PT C C1
S
1 3
r ed
whit e
Com p resso r
Descri p tion of com p onents and p arts:
S y mbo l Descri p tio n S y mbo l
F U
PT C Com p ressor start-u p unit
4WV EXV
Four-wa y valv e Electric ex p ansion valv e
KM
C ontacto r S olenoid valv e
PWMV
C 1- 3
Ca p acito r LP Low p ressure switc h
HP Hi g h pressure switc h Sur g e suppresso r
R C
F U
C3
C2
M M
~ ~
14
r ed r ed
F a n 1 F a n 2
Jumper settin g s :
DIP switch J2 settin g:
Descri p tio n JP 1 J P 2
J 2. 6
F use O F F O F F
ON
S olenoid valv e
J1. 1
OF F
O F F
F U
C2
M M
~ ~
14
r ed
F a n 1 F a n 2
Descri p tio n
Jumper settin g s :
DIP switch J2 settin g:
F use
JP 1 J P 2
J 2. 6
O F F O F F
O F F
OF F
O F F
2
PWMV
3
LIVE
RY1
NE U TRA L
N
McQua y
Tr a n s f o rm er
TRAN- L
JP 1 JP 2
A B
AI-I N
Connectin g indoor units communication
N o t es:
1: Field wirin g
2:
Factory wirin g
J1. 7
3:
OF F
4: If the unit is connected at the end of the bus , JP1 and J P2 are O N .
2
EXV
3
LIVE
RY1
N NE U TRA L
McQua y
CN 1
Tr a n s f o rm er
JP1 JP2
A B
AI - IN
Connectin g indoor units communicatio n
N o t es:
1: Field wirin g
2:
Factory wirin g
J1. 7
3:
O F F O F F
4:
page 20
KM
5 7 8 1 0
RY2 RY 3 RY4 RY 5 RY 6 RY7
J2
NE U TRA L
O V- CO MP 3
O V- CO MP 2
O V- CO MP 1
J1
LP
HP
G N D
Coil middle tem p erature sensor ( TH5 )
Return air tem p erature sensor ( TH3 )
Ambient tem p erature sensor ( TH2 )
Air dischar g e temperature sensor of the di g ital compressor (TH1 )
KM
7 8 1 0
RY2 RY 3 RY4 RY 5 RY 6 RY7
J2
NE U TRA L
O V- CO MP 3
O V- CO MP 2
O V- CO MP 1
J1
LP
HP
G N D
Coil outlet tem p erature sensor ( TH6 )
Coil middle tem p erature sensor ( TH5 )
Coil inlet tem p erature sensor ( TH4 )
Return air tem p erature sensor ( TH3 )
Ambient tem p erature sensor ( TH2 )
Air dischar g e temperature sensor of the di g ital compressor (TH1 )
and J P2 are ON.
L P
11
HP
12
LP
11
HP
12