Application Data - Carrier 38GXM Product Data

APPLICATION DATA

UNIT SELECTION
When selecting a variable speed system match the system capacity
range to the anticipated load range. Since a variable speed system
can accommodate a wide range of loads it is important to
understand the percentage of time that the system will be required
to run at the both the maximum and the minimum load points. This
differential is most evident when a residential application is
compared with a commercial application.
Generally there will be more load diversification in the residential
application (shifting from low load to high load).
CAPACITIES
18K - - COOLING
Fan Coil Combinations
1 x 40GXM009 ---3
1 x 40GXM012 ---3
2 x 40GXM009 ---3
1 x 40GXM009 ---3
1 x 40GXM012 ---3
18K - - HEATING
Fan Coil Combinations
1 x 40GXM009 ---3
1 x 40GXM012 ---3
2 x 40GXM009 ---3
1 x 40GXM009 ---3
1 x 40GXM012 ---3
24K - - COOLING
Fan Coil Combinations
1 x 40GXM009 ---3
1 x 40GXM012 ---3
2 x 40GXM009 ---3
1 x 40GXM009 ---3
1 x 40GXM012 ---3
1 x 40GXM012 ---3
1 x 40GXM012 ---3
24K - - HEATING
Fan Coil Combinations
1 x 40GXM009 ---3
1 x 40GXM012 ---3
2 x 40GXM009 ---3
1 x 40GXM009 ---3
1 x 40GXM012 ---3
1 x 40GXM012 ---3
1 x 40GXM012 ---3
FCU 1 BTUH FCU 2 BTUH
9,300 ---
10,200 ---
8,800 8,800
8,500 9,800
FCU 1 BTUH FCU 2 BTUH
9,600 ---
10,600 ---
9,100 9,100
9,000 10,300
FCU 1 BTUH FCU 2 BTUH
14,100 ---
15,600 ---
11,400 11,400
11,000 13,000
12,775 12,775
FCU 1 BTUH FCU 2 BTUH
12,900 ---
14,500 ---
12,100 12,100
11,800 14,300
14,200 14,200
The commercial application will tend to be more steady during the
normal day time hours, and will go to low load levels after normal
business hours. If it is anticipated that the system will be required
to run at the maximum load point for the majority of the time, the
next larger system capacity should be selected.
The tables below are guidelines for selecting the proper size for the
application.
Cooling Capacity BTUH
9,300
10,200
17,600
18,300
Heating Capacity BTUH
9,600
10,600
18,200
19,300
Cooling Capacity BTUH
14,100
15,600
22,800
24,000
25,050
Heating Capacity BTUH
12,900
14,500
24,200
26,100
28,000
9
Cooling Capacity Range BTUH
4,900 --- 12,500
5,100 --- 12800
3,750 --- 19,600
3,450 --- 21,300
Heating Capacity Range BTUH
3,700 --- 10,600
3,900 --- 11,700
8,200 --- 19,800
8,800 --- 21,000
Cooling Capacity Range BTUH
12,700 --- 16,700
14,200 --- 18,600
11,800 --- 25,500
12,300 --- 26,800
12,850 --- 28,000
Heating Capacity Range BTUH
10,500 --- 15,000
11,600 --- 16,800
10,100 --- 26,600
10,900 --- 28,700
11,400 --- 31,200