Carrier 38EN - Manual (Page 2)

HEATING A COOLING
^ 38EN
Air-Cooled Condensing Units
Table 1 — Physical Data (Refer to Fig. 1)
MODEL 38EN 015 018 024 030 036 042 048 060
OPER WT (lb)* 94 111 111 142 146 182 200 228
REFRIGERANT
Control
22
AccuRater'“ (Installed In I.D. Coil)
COND FAN
Air Discharge
Air Qty (cfm)
Motor Rpm (60 Hz)
Propelle
1950
1650
ir Type, Direct Drive
Vertical
2800 1 4800
1100
COND COIL (fins/in.)
Tube Diam
Rows
Face Area (sq ft)
Outer Row
Inner Row
20
% in -
8 15
'/2
1
12 37
16
in , E-coil
17 11
2
17.11
DIMENSIONS (ft-in.)
Diameter A
Height B 1- 5'/2
2- 1
1-9’/2 2-5'/4
2-7
CONN (in. ODF)
Suction
Liquid
Compatible F
%
tting (Suction and Liquid)
%
%
REFRIG LINES (in. ODF)
Suction
Liquid % 1 % 1 '/e 1 1’/at
%
*Add 10 lbs for louvered casing (If so equipped) Weight Increases slightly
with addition of any accessories
t38EN048,060 require a I'/s-ln suction line for optimum performance. A
%- X 1'/8-in connection adapter accessory (Carrier Part No. 28AU900061)
is available If a %-in accessory tubing package is used, expect a 3%
capacity loss
A CAUTION
DO NOT BURY MORE THAN 3 FT OF RE­
FRIGERANT TUBING IN GROUND. If any
section of tubing is buried, there must be a 6-in.
vertical rise to the valve connections on the outdoor
unit. If more than the recommended length is buried,
refrigerant may migrate to cooler buried section
during extended periods of unit shutdown, causing
refrigerant slugging and possibly compressor damage
at start-up.
RETAINER
FLARE NUT
FLARE
CONNECTION
Fig. 2 — AccuRater (Bypass Type)
Components
CUT HERE-J
,0-RING
Fig. 3 — Repair of Mechanicai Connection
CONNECT REFRIGERANT LINES to fittings on
outdoor unit suction and liquid service valves (Fig. 1).
Unit Compatible Fittings permit mechanical (quick-
connect) or sweat connections.
Models 38EN048,060 — When using 1-1/8-in. field-
supplied refrigerant suction line, sweat-connect suction
line to 1-1/8-in. end of required connection adapter.
Be sure to provide a heat sink at the service valve to
prevent damage during sweating operation. Connect
3/4-in. end of adapter to unit suction line Compatible
Fitting. Connect liquid refrigerant line to unit. When a
7/8-in. field-supplied suction line is used, provide a field-
supplied 3/4-in. to 7/8-in. suction line adapter (not
necessary if 38LS accessory tubing is used).
Table 2 — AccuRater™ Selection Chart
COND UNIT
38EN
ACCURATER'“ PISTON NO.
Evap Size (Coil or Fan Coil)
(1- and 3-Ph)
015 018 024 030 036 042 048 060 060
015-0 ■ 46 TXV — — — — — _
018-0 52 52 TXV — — — — —
024-0 — — 57 57 TXV
— — — —
030-0 _ — -
m
65 TXV
—
— —
030-2 __ — 631 — — —
036-0 — — m
70 TXV — —
042-0 — — — — 78 78 TXV —
048-0 — — — — —
060-0
■
060-1 98
Factory-installed piston Obtain replacement pistons
through local Carrier distributor
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Bookll |4 PC101 Catalog No 563-825 PrIntedInUSA Form38EN-3SI Pg 2 12-84 Replaces: 38EN-2SI