Carrier WEATHERMAKER 48/50AJ User Manual
Page 55
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Table 69B — Staged Gas Heat — 48A2,A3,A4,A5 Units
Table 70 — Staged Gas Heat Control Steps (Configuration
HEAT
SG.CF
HT.ST = 1)
Table 71 — Staged Gas Heat Control Steps (Configuration
HEAT
SG.CT
HT.ST = 2)
Table 72 — Staged Gas Heat Control Steps (Configuration
HEAT
SG.CT
HT.ST = 3)
UNIT SIZE
HEAT CAPACITY
UNIT MODEL NO.
POSITION NO. 5
Configuration
HEAT
SG.CF
HT.ST
ENTRY VALUE
020-030
Low
S
1 = 5 STAGE
High
T
2 = 7 STAGE
035-050
Low
S
1 = 5 STAGE
High
T
1 = 5 STAGE
060
Low
S
4 = 11 STAGE
High
T
3 = 9 STAGE
STAGE
RELAY OUTPUT
CAPACITY
%
Heat 1
Heat 2
Heat 3
Heat 4
Heat 5
Heat 6
MBB-RLY8
MBB-RLY7
SCB-RLY1
SCB-RLY2
SCB-RLY3
SCB-RLY4
IGC1
MGV1
IGC2
MGV2
IGC3
MGV3
0
OFF
OFF
OFF
OFF
OFF
OFF
0
1
ON
OFF
OFF
OFF
OFF
OFF
37
2
ON
ON
OFF
OFF
OFF
OFF
50
3
ON
OFF
ON
OFF
OFF
OFF
75
4
ON
ON
ON
OFF
OFF
OFF
87
5
ON
ON
ON
ON
OFF
OFF
100
STAGE
RELAY OUTPUT
CAPACITY
%
Heat 1
Heat 2
Heat 3
Heat 4
Heat 5
Heat 6
MBB-RLY8
MBB-RLY7
SCB-RLY1
SCB-RLY2
SCB-RLY3
SCB-RLY4
IGC1
MGV1
IGC2
MGV2
IGC3
MGV3
0
OFF
OFF
OFF
OFF
OFF
OFF
0
1
ON
OFF
OFF
OFF
OFF
OFF
25
2
ON
ON
OFF
OFF
OFF
OFF
33
3
OFF
OFF
ON
OFF
OFF
OFF
50
4
OFF
OFF
ON
ON
OFF
OFF
67
5
ON
OFF
ON
OFF
OFF
OFF
75
6
ON
ON
ON
OFF
OFF
OFF
83
7
ON
ON
ON
ON
OFF
OFF
100
STAGE
RELAY OUTPUT
CAPACITY
%
Heat 1
Heat 2
Heat 3
Heat 4
Heat 5
Heat 6
MBB-RLY8
MBB-RLY7
SCB-RLY1
SCB-RLY2
SCB-RLY3
SCB-RLY4
IGC1
MGV1
IGC2
MGV2
IGC3
MGV3
0
OFF
OFF
OFF
OFF
OFF
OFF
0
1
ON
OFF
OFF
OFF
OFF
OFF
25
2
ON
ON
OFF
OFF
OFF
OFF
33
3
ON
OFF
ON
OFF
OFF
OFF
50
4
ON
ON
ON
OFF
OFF
OFF
58
5
ON
ON
ON
ON
OFF
OFF
67
6
ON
OFF
ON
OFF
ON
OFF
75
7
ON
OFF
ON
ON
ON
OFF
83
8
ON
ON
ON
ON
ON
OFF
92
9
ON
ON
ON
ON
ON
ON
100