Selection Procedure - Carrier GEMINI SELECT 38APS025-065 Product Data

Selection procedure

To select a 38AP stand-alone condensing unit:
Use Carrier's Commercial Split Builder program to se-
lect a stand-alone outdoor unit from the Installation Config-
uration drop down menu and input the job requirements.
From the list presented, select a 38AP condensing
unit that is estimated to meet capacity requirements.
The 38APS single-circuit unit is offered in sizes 025-065
and the 38APD dual-circuit unit is offered in sizes 025-
130. After a 38AP unit is selected, the program will calcu-
late the condensing unit performance.
To select 38AP systems:
For systems with one 40RU fan coil unit or
39 Series air handler — Use Carrier's Commercial
Split Builder program to select a combined 38AP out-
door unit with matched 40RU indoor unit for sizes 025-
®
030. The AHUBuilder
select 38AP outdoor units with a matching 39 Series air
handler with direct-expansion (DX) coils. The 38APS sin-
gle-circuit unit is offered in sizes 025-065 and 38APD
dual-circuit unit is offered in sizes 025-130. Enter the soft-
ware program and input the job requirements. From the
list presented, select a 38AP condensing unit that is esti-
mated to meet capacity requirements. After selecting a
38AP unit, check its performance with one or several DX
coils. From the DX coil list presented on the screen, match
the 38AP with any coil or all coils. The program calculates
selection program is available to
the combined performance of the condensing unit and
each DX coil and presents the resulting system capacities
and operating temperatures. Matching thermostatic ex-
pansion valves and nozzles for the DX coils are automati-
cally selected and displayed.
For systems with two air handlers —
®
AHUBuilder selection program to select one size 025-
130 38AP outdoor unit to match with two 39 Series air
handlers with DX coils. For the first air handler, enter the
AHUBuilder selection program and input the job require-
ments. To choose a condensing unit, select the Specify
Your Own option. The program asks for condensing unit
capacities and SDT (saturated discharge temperature) at
–
30 F ( 1.1 C) and 50 F (10 C) SST (saturated suction tem-
perature). The SDT must first be determined by running a
standalone outdoor unit in the Commercial Split Build-
er program. The circuit capacity is listed in the Condens-
ing Unit Circuit Ratings tables on pages 23-34, 40-51, 57-
68, and 74-85. Enter the capacities from condenser circuit
A or B and SDT for circuits A and B into the AHUBuilder
program. (remember to use the correct air temperature en-
tering condenser column when locating the circuit capaci-
ties). For the second air handler, repeat the procedure to
select the second DX coil for the condenser circuit (A or B)
not used in the first selection.
Use Carrier's
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