Carrier WeatherExpert 48N2 - Page 139

139
LEGEND FOR Fig. 23-33
ACCSY — Accessory
ACC’Y — Accessory
ACC FSS — Accessory Fan Status Switch
AN — Analog
APS — Air Pressure Switch
BP — Building Pressure
BR — Blower Relay
C—Compressor Contactor
CB — Compressor Circuit Breaker
CCB — Control Circuit Breaker
CCH — Crankcase Heater
CCHR — Crankcase Heater Relay
CCN — Carrier Comfort Network®
CCT — Cooling Coil Thermistor
CEM — Controls Expansion Module
CMR — Compressor Modulation Relay
CO — Convenience Outlet
COMP — Compressor
CR — Control Relay
CSB — Current Sensor Board
CXB — Compressor Expansion Board
DGS — Discharge Gas Sensor
DI — Digital Input
DP — Duct Pressure
DPT — Discharge Pressure Transducer
DTT — Discharge Temperature Thermistor
DUS — Digital Unloader Solenoid
ECON — Economizer
EQUIP — Equipment
ERV — Energy Recovery Ventilation
ERVCB — ERV Circuit Breaker
ERVTB — ERV Terminal Block
EXB — Economizer Control Board
EXV — Electronic Expansion Valve
FS — Filter Switch
FS/FP — Filter Switch/Filter Pressure
FTS — Filter Switch
FU — Fuse
GND — Ground
GVR — Gas Valve Relay
HC — Heater Contactor
HIR — Heat Induction Relay
HGBP — Hot Gas Bypass
HMV — Humidi-MiZer Valve
HPS — High-Pressure Switch
HS — Hall Effect Sensor
HV — High Voltage
HVS — Humidi-MiZer
®
Valve Solenoid
I—Ignitor
IAQ — Indoor Air Quality
IDM — Induced Draft Motor
IFCB — Indoor Fan Circuit Breaker
IFM — Indoor Fan Motor
IGC — Integrated Gas Controller
LEN — Local Equipment Network
LON — Local Operating Network
LPT — Liquid Pressure Transducer
LS — Limit Switch
LT — Liquid Temperature
LVT — Low Volume Terminal
MBB — Main Base Board
MGV — Main Gas Valve
MLV — Minimum Load Valve
MMF — MotorMaster Fuse
MMR — MotorMaster Relay
MMV — MotorMaster VFD
MP — Communications
NEC — National Electrical Code
OA — Outdoor Air
OAQ — Outdoor Air Quality
OAT — Outdoor-Air Thermistor
OD — Outdoor
OFC — Outdoor Fan Contactor
OFM — Outdoor Fan Motor
OL — Overload
PE — Power Exhaust
PECB — Power Exhaust Circuit Breaker
PEM — Power Exhaust Motor
PL — Plug Assembly
PP — Communications
PPSS — Plenum Pressure Safety Switch
PS — Pressure Switch
PTC — Positive Temperature Coefficient
Power Reference
RACFM — Return Air CFM
RAT — Return Air Thermistor
RF — Return Fan
RFCB — Return Fan Circuit Breaker
RFM — Return Fan Motor
RGT — Return Gas Thermistor
RS — Rollout Switch
RXB — Rooftop Control Board
SACFM — Supply Air CFM
SAT — Supply Air Thermistor
SC30 — Signal Conditioner Control Board
SCB — Staged Gas Control Board
SCCR — Short Circuit Current Rating
SCR — Silicon Controlled Rectifier
SEN —
Sensor
SPT — Suction Pressure Transducer
ST — Suction Temperature
TB — Terminal Block
TR1 — Timer Relay Control Board
TRAN — Transformer
UPC — Unitary Protocol Converter
UVC — Ultraviolet
VAV — Var iable Air Volume
VFD — Variable Frequency Drive
Terminal Block
Terminal (Unmarked)
Terminal (Marked)
Splice
Factory Wiring
Field Wiring
To indicate common potential
only, not to represent wiring.
To indicate factory-installed
option or accessory