Carrier WEATHERMAKER 48J - Page 44

STAGE
COMP
A1
A2
B1
UNIT
020
025
027
I 1
OFF ON*
OFF OFF
OFF OFF
0% 18%
0% 17%
0% 21%
*With Minimum Load Valve ON,
Table 52 n Staging Sequence With Hot Gas Bypass
48/50AK,AY020-027 and Multi-Stage 48/50AJ,AW020-027
SEQUENCE 1
I 2 I a I 4 I s
Compressor Status
ON ON OFF ON
OFF ON ON ON
OFF OFF ON ON
Unit Capacity 48/50A
33% 67% 67% 100%
30% 65% 70% 100%
33% 67% 67% 100%
OFF
OFF
OFF
0%
0%
0%
I 1
SEQUENCE 2
I 2 I a I 4 I s
Compressor Status
OFF OFF ON ON ON
ON* ON ON OFF ON
OFF OFF OFF ON ON
Unit Capacity 48/50A
18% 33% 67% 67% 100%
22% 35% 65% 65% 100%
21% 33% 67% 67% 100%
STAG E
COMP
A1
A2
B1
B2
UNIT
030
035,036
040,041
050
051
060
OFF
OFF
OFF
OFF
0%
0%
0%
0%
0%
0%
Table 53 -- Staging Sequence Without Hot Gas Bypass --
48/50AK,AY030-060 and Multi-Stage 48/50AJ,AW030-060
SEQUENCE 1
t I 2 I 3 I 4 I 5
Compressor Status
ON ON OFF ON ON
OFF ON ON ON ON
OFF OFF ON ON ON
OFF OFF OFF OFF ON
Unit Capacity 48/50A
23% 45% 50% 73% 100%
22% 48% 52% 74% 100%
21% 43% 50% 71% 100%
23% 46% 46% 68% 100%
25% 50% 50% 75% 100%
24% 50% 50% 74% 100%
OFF
OFF
OFF
OFF
0%
0%
0%
0%
0%
0%
I 1
SEQUENCE 2
I 2 I 3 I 4 I 5
Compressor Status
OFF ON ON ON ON
ON ON OFF ON ON
OFF OFF OFF OFF ON
OFF OFF ON ON ON
Unit Capacity 48/50A
23% 45% 50% 73% 100%
26% 48% 48% 74% 100%
21% 43% 50% 72% 100%
23% 46% 54% 77% 100%
25% 50% 50% 75% 100%
26% 50% 50% 76% 100%
STAGE
COMP
A1
A2
B1
B2
UNIT
030
035,036
040,041
050
051
060
OFF
OFF
OFF
OFF
Table 54 -- Staging Sequence With Hot Gas Bypass -- 48/50AK,AY030-060
ON*
OFF
OFF
OFF
0% 12%
0% 12%
0% 13%
0% 16%
0% 19%
0% 19%
*With minimum load valve ON,
STAGE
Y1
Y2
COMP
A1
A2
B1
UNIT
020
025
027
SEQUENCE 1
I 2 I 3 I 4 I 5 I 6
Compressor Status
ON ON OFF ON ON
OFF ON ON ON ON
OFF OFF ON ON ON
OFF OFF OFF OFF ON
Unit Capacity 48/50A
23% 45% 50% 73% 100%
22% 48% 52% 74% 100%
21% 43% 50% 71% 100%
23% 46% 46% 68% 100%
25% 50% 50% 75% 100%
24% 50% 50% 74% 100%
SEQUENCE 2
o I1 12 13 14 15 I 6
Compressor Status
OFF OFF OFF ON ON ON ON
OFF ON* ON ON OFF ON ON
OFF OFF OFF OFF OFF OFF ON
OFF OFF ON OFF ON ON ON
Unit Capacity 48/50A
0% 12% 23% 45% 50% 73% 100%
0% 16% 26% 48% 48% 74% 100%
0% 13% 21% 43% 50% 72% 100%
0% 16% 23% 46% 54% 77% 100%
0% 19% 25% 50% 50% 75% 100%
0% 21% 26% 50% 50% 76% 100%
Table 55 -- 2-Stage Sequence --
48/50A2,A4020-027
SEQUENCE 1
o l 1 I 2
Thermostat Inputs
OPEN CLOSED I CLOSED
I
OPEN OPEN CLOSED
Compressor Status
OFF ON ON
OFF OFF ON
OFF OFF ON
Unit Capacity
0% 30% 100%
0% 33% 100%
0% 33% 100%
SEQUENCE 2
01 1 I 2
Thermostat Inputs
OPEN CLOSED JCLOSED
I
OPEN OPEN CLOSED
Compressor Status
OFF OFF ON
OFF ON ON
OFF OFF ON
Unit Capacity
0% 30% 100%
0% 33% 100%
0% 33% 100%
STAGE
Y1
Y2
COMP
A1
A2
B1
B2
UNIT
030
035
040
050
060
Table 56 -- 2-Stage Sequence --
48/50A2,A4030-060
SEQUENCE 1
o l 1 I 2
Thermostat Inputs
OPEN CLOSED CLOSED
OPEN OPEN CLOSED
Compressor Status
OFF ON ON
OFF OFF ON
OFF ON ON
OFF OFF ON
Unit Capacity
0% 50% 100%
0% 50% 100%
0% 50% 100%
0% 50% 100%
0% 50% 100%
SEQUENCE 2
01 1 I 2
Thermostat Inputs
OPEN CLOSED JCLOSED
I
OPEN OPEN CLOSED
Compressor Status
OFF OFF ON
OFF ON ON
OFF OFF ON
OFF ON ON
Unit Capacity
0% 50% 100%
0% 50% 100%
0% 50% 100%
0% 50% 100%
0% 50% 100%
44