Carrier PC 111 User Manual
Page 58
58
LEGEND AND NOTES FOR FIG. 57
NOTES:
1.Connect TRAN1 to
for 460 v units. Connect to
for 230 v
units. If 208/230 v units are run with a 208 v power supply con-
nect to
.
2.Connect TRAN2 to BLK lead for 460 v units. Connect to ORN
lead for 230 v units. If 208/230 v units are run with a 208 v
power supply connect to RED lead.
3.Circuit breaker must trip amps are equal to or less than 156%
FLA (full load amps) for CB1 and CB2. All others are 140%.
4.If any of the original wire furnished must be replaced, it must
be replaced with type 90° C wire or its equivalent.
5.Number(s) indicates the line location of contacts. A bracket
over (2) numbers signifies single pole double throw contacts.
An underlined number signifies a normally closed contact.
Plain numbers (no lines), signify a normally opened contact.
6.Condenser fan motors are thermally protected.
7.Three phase motors are protected under primary single phas-
ing conditions.
ALM
— Alarm
IGVM — Inlet Guide Vanes Motor
C
— Contactor
LAT
— Leaving-Air Temperature
CB
— Circuit Breaker
LPS
— Low-Pressure Switch
CCB
— Control Circuit Breaker
MTR
— Motor
COMP — Compressor
MV
— Main Valve
CH
— Crankcase Heater
NC
— Normally Closed
CR
— Control Relay
NO
— Normally Open
DPS
— Differential Pressure Switch
OFC
— Outdoor Fan Contactor
DPT
— Discharge Pressure Transducer
OFM
— Outdoor (Condenser) Fan Motor
EAT
— Enering-Air Temperature
OMR
— Outdoor Motor Relay
EC
— Enthalpy Control
PCB
— Power Exhaust Circuit Breaker
ECR
— Economizer Close Relay
PEC
— Power Exhaust Contactor
EOR
— Economizer Open Relay
PEDM — Power Exhaust Damper Motor
EQUIP — Equipment
PEM
— Power Exhaust Motor
FS
— Fan Status Switch
P, PL
— Plug
GND
— Ground
RCB
— Return Fan Circuit Breaker
HIR
— Heat Interlock Relay
RES
— Resistor
HPS
— High-Pressure Switch
RFC
— Return Fan Contactror
HR
— Heater Relay
RFM
— Return Fan Motor
HTR
— Heater
SCT
— Saturated Condensing Thermistor
IDC
— Induced Draft Contactor
TB
— Terminal Block
IDM
— Induced Draft Motor
TRAN — Transformer
IFC
— Indoor (Evaporator) Fan Contactor
U
— Unloader
IFCB
— Indoor Fan Circuit Breaker
VFD
— Variable Frequence Drive
IFM
— Indoor Fan Motor
Field Wiring
IGV
— Inlet Guide Vanes
Factory Wiring
H4
H3
H2