Carrier 38BA - Manual

Number One
Air Conditioning
l\Mer
e
Division of Carrier Corporatio
Syracuse, New York
Packaged Direct-Expansion Air Handler
Air-Cooled Condensing Unit System
GENERAL
This publication contains application infor­
mation for Carrier 38AD, AE, BA, and GR con­
densing units used in split systems with 40RR
direct-expansion air handling units, including
system selection, performance data, combination
ratings, electrical and control data, and refrigerant
piping details.
■ SELECTION PROCEDURE (With Example)
I Given:
COOLING
Grand Total Load (Req’d TC) . . 600,000 Btuh
Sensible Load (Req’d SHC) . . . 430,000 Btuh
Temperature Air Entering
Condenser............................................... 95 F
Temperature Air Entering
Evaporator — edb...............................77 F db
Temperature Air Entering
Evaporator — ewb .......................... 64 F wb
Evaporator Air Quantity .................. 20,000 cfm
External Static Pressure.................. 1.12 in. wg
Length of Interconnecting
Refrigerant Piping (Estimate) ................. 90 ft
Electrical Power Source,
Volts/Phase/Hertz............................ 460/3/60
HEATING
Heating Load............................... 900,000 Btuh
Temperature Air Entering
Coil (edb) ................................................ 58 F
Steam Pressure...................................... 5 psig
II Select condensing unit/fan coil combination.
Enter the Systems Index at the desired cfm
(20,000). Select the condensing unit(s) and
fan-coil system that meets or exceeds the grand
total load (600,000 Btuh). In this example,
system no. 48 would be selected — two 38AD
024 and one 38AD016 condensing units and a
40RR054 fan-coil, yielding a nominal capacity
of 632,000 Btuh. To determine whether this
system will fully satisfy the cooling require­
ments, enter the combination ratings, system
no. 48, page 9, at 20,000 cfm and 95 F condenser
entering air temperature. By interpolation, at
© Carrier Corporation 1975
SYSTEMS INDEX
¡38
38
38
338
38
38
38
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в
38
шш т
ШФ
Ш щ
CONDENSING
_UNIT(S)
GR006
ВА008
ВД009
___
ВА008
ВА009
AD012
AD012
AD014
AD016
AD012
AD014
AD016
AD024
ADO^g-
AD012 (2)
AD024
AD028
AD024
AD012 (2)
AD028
AD016 & AD012
AD034
AD016 (2)_
ADÔ28.............................
AD016 & AD012
AD034
AD016 (2)
AD024 & AD016
АЕ044
__
AD034
AD012 (3)
AD016 & AD024
AD016 & AD012 (2;
АЕ044
AD016 (2) & AD012
AD016 & AD028
AD016 & AD034
AD016 (3)
АЕ054
АЕ044
AD016 (2) & AD012
AD016 & AD034
AD016 (3)
AD024 & AD034
АЕ054
AD024 (2) & AD012
AD024 (2) & AD016
АЕ064
FAN
COIL
40
В А 009
40
RR 008
40
RR012
40
RR016
40
R R 024
40
RR026
40
R R 034
40
R R 044
40
R R 054
NOM
CFM
3.400
3.400
2,360*
3.000
3.000
j^OOO
4,5ÔÔ~
4.000
4.000
4/950*
6.000
6,000
6,000
8,000
10,000
12,000
16,000
20,000
ARI OR
NOM TC
-
88
100_
'""'бЗ*''"
87
98
110
О2Ф*t”^
144
157
166
181
216
196
238
238
279
252
300
300
325
335
312
313
342
359
393
422
378
392
429
434
451
479
502
498
510
524
" 4 8 I
512
537
557
579
567
590
632
638
EER*
6 T'
9 0
7 6
7 6”'
9 5
8 2
Tir
8 6
EER — Energy Efficiency Ratio
ТС — Total Capacity (1000 Btuh)
*ARI capacities, Energy Efficiency Ratios rated in accordance with
latest ARI Standard 210
tFor units operating at 208 v, deduct 1000 Btuh from capacity
rating
Form 38AD-5XA