Carrier 38EB - Manual (Page 5)

Table 4 — Electrical Data
COND
UNIT
38EB
OPER
VOLTS*
BRANCH CIRCUIT
V/PH
COMPR FAN
FLA
Min Wire
Sizet
(AWG)
Max
Ft
Wiret
Min Ground
Wire
Sizet
Max Fuse or
HACR Type
Ckt Bkr Amps**
MCA
Max Min LRA RLA
015300 35 0 1 7.4 34 14 15 10 5
018300 41 0 9 1
1 25
28 12 20 12 7
024300 59 0 133; 12 33 30 17 9
030310 208-230/1 197 69 0 ; 16 2
10
42 35 21 5
036310 254 93 0: 20 2 34
10
45 27 7
042360 108 0 21 7
24
45 50 29 5
048310 145 0 25 7
8
41 60 34 5
048350
230/1 207
105.57^ 22.9 50 50 31 0
060350 150 0 i 35 3 30 60 46 5
AWG — American Wire Gage
FLA — Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
RLA — Rated Load Amps
^Permissible limits of the voltage range at which the unit will
operate satisfactorily
fCopper wire sizes based on 60 C Use copper or copper-clad
aluminum wire only Use latest NEC requirements for copper-
clad aluminum conductor sizing
^Required when using nonmetallic conduit
“Maximum dual element size
NOTE Control circuit is 24v on all units and requires external
power source
Step 3 — Make Electrical Connections — Be
sure field wiring complies with local and national
fire, safety and electrical codes, and that voltage to
unit is within limits shown in Table 4. Contact local
power company for correction of improper line
voltage.
cöüiti afleci Csmer
Do »ot ana ia
mäy niíOaaio above m
See Table 4 for recommended wire and fuse sizes.
When making electric connections, provide clear­
ance at unit for refrigerant piping connections.
INSTALL A BRANCH CIRCUIT DISCONNECT
PER NEC of adequate size to handle unit starting
current. Locate disconnect within sight from and
readily accessible from the unit, per section 440-14
of National Electrical Code (NEC).
ROUTE LINE POWER LEADS INTO UNIT —
Extend leads from disconnect thru power wiring
hole provided (see Fig. 1) and into unit splice area.
Remove top cover to gain access to unit wiring.
CONNECT GROUND LEAD AND POWER
WIRING — Connect ground lead to a ground lug
in control box for safety. Then connect power wiring.
I-PHASE
CONN. TO
DISCONNECT
PER NEC
— GROUND LEAD-|-[1]GR0UNDING LUG
------BLK-----------
-YEL-
1-PHASE
COND UNIT
Splice Connections
-------------Field Wiring
------------- Factory Wiring
Fig. 4 — Line Power Connections
See Fig. 4. Splice line power leads to yellow and
black pigtails. Use wire nuts and tape at each con­
nection. Connect unit wiring to copper or copper-
clad aluminum power wiring. Do not connect to
aluminum wiring.
CONNECT CONTROL POWER WIRING —
Route 24-v control wires thru control wiring hole
and connect to pigtails supplied with unit (Fig. 1).
Splice control leads to black and blue pigtails on all
units. See Fig. 5.
Use furnace or fan coil transformer as 24-v (40-va
minimum) supply for system as shown in Fig. 5, or
use accessory transformer shown in Table J.