Carrier 38BA User Manual
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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
‘XÿJX'SVK
ш
в
38
шш
т
ШФ
Шщ
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
Î2Ô*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
"48I
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
Summary of Contents
Page 1
Number One Air Conditioning l\MereDivision of Carrier Corporatio Syracuse, New YorkPackaged Direct-Expansion Air Handler Air-Cooled Condensing Unit
Page 2
64 F evaporator entering air wb temperature, the system has a total capacity (TC) of 600,800 Btuh, and a calculated sensible heat capacity
Page 3
COMBINATION RATINGSi 38GR006 and 40BA009Ratings Notes1. Direct interpolation is permissible. Do not extrapolate.2. SHC is based on 80 F d
Page 4
COMBINATION RATINGS:^^38BA008 and 40RR008ARI - 87,000 Btuh38AD014 and 40RR012Evap Air - Cfm/BFE vap Air - Cfm/BF2200/. 173000/.213800/.243000/. 16 400
Page 5
COMBINATION RATINGSr38AD016 and 40RR01638AD024 and 40RR024P(F)E vap Air — Cfm/BFP(F)Evap /iir — Cfm/BF4500/. 156000/. 197500/ 226000/. 158000/. 1810,0
Page 6
COMBINATION RATINGS[38AD012 w/U, 38AD012 w/L of 40RR028 38AD016 w/U, 38AD016 w/L of .P(F)Evgp Air - Cfm/BF... '' 'Evgp Air - Cfm/BFA750
Page 7
COMBINATION RATINGSf38AD0i6V/U, 38AD016 w/L of 40RR034w/U, 38AD012 w/M, 38AD012 w/L of 40RR044Temn (F\Evap AIr — Cfm/BFEvap Air — Cfm/BFA9000/. 1512,0
Page 8
COMBINATION RATINGSg^38AE044 and 40RR044P(F)P»»Evap Air — Cfm/BFA:.15 ,000/.1516,000/.1820,000/.21Evap >¡Vir -iwb (= )72 67 62 72676272 67 62TC4914
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