Carrier AC310 - Page 60

6--18T--304
04/08
UNIT WITH 2 COMPRESSORS
U3
3/B15
10A
F2A
X20
X5
11
1
2
GN
X3.5
10A
F3A
21
3
10 7 5
3086
85
87a
87
K7A
Option
Y6A
Y7A
B2F
B21F
Liquid Line Valves
LP--Switch
HP--Switch
4
2
1
1
4
2
UNIT WITH 1 COMPRESSOR
U3
3/B15 F2A
10A
X3.5
F3A
31
GN
10A
2
K7A
Option
86
30
87
87a
85
10 7 511
X5
Liquid Line Valve
Y7A
B1F
B11F
B11N
1
2
2
4
1
4
LP Switch
+
+
--
--
HP Switch
Y8A
+
Y7N
Compressor Clutch
Unloader Valve
OPTION
1
2
4
Compressor Unloader
Compressor Clutch
Y8M
Compressor Clutch
B1F
B11F
LP Switch
HP Switch
1
2
4
4
2
1
+
+
Y7M
Figure 6--17 Thermostat (One/Two Compressors)