Carrier 30HR - Manual (Page 18)

ELECTRICAL DATA (cont)
WIRING DIAGRAM; 30HR,HS070-120
CONTROL CIRCUIT
115 V, 60-HZ.
STOP BUTTON
AUX C
-VW
CH
-T- SR
-o
FU
'^’^ART a
RESET BUTTON
^ONE ON EACH
COMPRESSOR
OPSS FACTORY
INSTALLED ON 30HS
UNITS ONLY,ONE ON EACH COMPRESSOR
CR.
COMPRESSOR I 82 IP
FU
CR,
COMPRESSOR 3 84 IP
O lps I
NO dUMPERS^^
WHEN OPSS
USED
¿S l PS z
■FIELD-WIRED INTERLOCKS (WHEN USED)
HPSi HPS^ LWTC
LEGEND
(For diagrams pages 18 and 19)
30HR,HS070-120
30HR,HS140-160
BR — Balancing Relay
C — Compressor Contactor
CA — Second Contactor
CB — Circuit Breaker
CH — Crankcase Heater
COMPR — Compressor
CR — Control Relay
CS4 — On-Off Switch, Compressor 4
FU — Fuse
HPS — High Pressure Switch
IP — Internal Motor Protection
(Thermotector)
LLS — Liquid Line Solenoid Vaive
LPS — Low Pressure Switch
LWTC — Low Water Temperature Cuto
OPSS — Oil Pressure Safety Switch
RR — Recycie Relay
SM — Sensor Module
(solid state compr motor prot
SR — Starting Relay
SW — Switch (start-stop)
TM — Timer Motor
TR — Timer Relay
U — Unloader (compressor)
Factory Wiring
__ Factory Wiring, 30HS only
o
Coil
H
Contacts Normally Closed
11
Contacts Normally Open
;®:
Light (Red)
FI ELD-INSTALLED AUXILIARY
EQUIPMENT TERMINALS
T \
m 5'
-----“------- r r
LLS,
CR,
C^
CR,
-SEQUENCE
TRANSFER
MOTOR
MULTIPLE-
STEP
CONTROLLER
BR
a
RR
X
24V
LLS,
X-
(?)—
1 __
--CHt5--------------
OPSS 2
-©------------
-w-
-X
I^TEMPERATURE
CONTROLLER
J"EMPERATURE
SENSING BULB
H@------------
—
- o r p -
OPSS,
prY>~l TRANSFORMER
II5V __________________