Carrier 38SE - Manual

Number One
Air Conditioning
Mater
e
Division of Carrier Corporation
Carrier Parkway ♦ Syracuse NY 13201
Air-Cooled Condensing Units
SUCTION LINE CONN (ON SERVICE VALVE)
LIQUID LINE
CONN.(ON SERVICE,!
VALVE)
5." |3'*
16 “ ' 8
MTG SLOTS
(USE ANY 2) ------- ------- 10^
uSl SPACE REQUIRED FOR SERVICE
38SE,GR
DIAM HOLE
FOR CONTROL
WIRIN(3
CONCRETE MOUNTING PAD^(SQUARE OR CIRCULAR)
^CONCRETE PAD SHOULD WEIGH |-| TO 2 TIMES WEIGHT OF UNIT
Fig. 1 — Dimensions, Connections and Mounting Pad
TRANSPORTATION DAMAGE
File claim with shipping company if shipment is
damaged or incomplete.
PRELIMINARY SURVEY
Consult local building codes and National Electrical
Code (NEC) for special installation requirements.
When installing unit, allow sufficient space for airflow
clearance, wiring, refrigerant piping and servicing unit.
Recommended minimum requirement is 3 ft (Fig. 1).
Position unit so water from roof or eaves will not pour
directly on top of unit.
Install unit on a solid, level mounting pad. Position
tie-down bolts in pad. Any 2 holes in unit base may be used
to fasten unit to pad.
38GR Condensing Units Connected to Carrier-Approved
Evaporators with Carrier Accessory Tubing — 38GR units
contain correct refrigerant charge when evaporator is same
size, or one size larger than condensing unit and are
connected with Carrier accessory tubing. Check refrigerant
charge when tubing lengths are above 50 feet. See Refrig­
erant Charging for details.
38SE Condensing Units Connected to Carrier-Approved
Evaporators — 38SE units contain correct system refrig­
erant charge when evaporator is same size as condensing
unit, and they are connected with 25 ft or less of
field-supplied tubing of recommended size (see Piping
Connections) or 50 ft or less of Carrier accessory tubing.
Check refrigerant charge for maximum system efficiency.
See Refrigerant Charging for details.
38GR,SE Condensing Units Connected to Non-Carrier
Evaporators — Check refrigerant charge when the 38GR,SE
is added to a system in which other than a Carrier approved
evaporator is being used or where the evaporator has been
previously installed. Field-supplied refrigerant piping must
be in accordance with Refrigerant Piping Data table.
Use an evaporator coil with a bleed-type expansion
device. If coil does not have a bleed-type expansion device
it may be necessary to add an accessory start capacitor and
relay to condensing unit. This would require removing
compressor start thermistor (PTC device) on units so
equipped.
PIPING CONNECTIONS
The 38GR,SE condensing units can be connected to
evaporator sections using Carrier accessory tubing package
or field-supplied tubing of refrigerant grade (Accessory
Table 1 — Installation Data
CONDENSING UNIT
38GR 38SE
002 003 004 045 005 006 002 003 004 045 055
OPERATING WT (lb) 151 170 182 194 1 234 260 176 180 192 248 255
DIMENSIONS Diam A 2-5У4 2-5У4
(ft-in.) Height В 2-4 2-4 2-4 2-4 2-8 2-8 2-4 2-4 2-8 3-8 3-8
REFRIG Suet ODF % y. L V
'A ’/ 4*
3/* V 4 У 4 У 4* 3/*-
4 %*
CONN. Liq ODF V 4 Ys
*38GR005,006 and 38SE004,045,055 supplied with 3/4-in to 1 1 /8-in suction valve connection adapter (field installed) for 1 1 /8-in suction
line (field supplied)
© Carrier Corporation 1975 Fornn 38SE-3SI