Carrier 48MA User Manual
Page 17
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1
AB
— Accessory Board
AFS
- AirfI ow Switch
APS
— Air Pressure Switch
C
— Compressor Contactor
Cap.
— Capacitor
CB
— Circuit Breaker
CCB
— Compressor Circuit Breaker
CCP
— Capacity Control Pressurestat
CH
— Crankcase Heater
CHR
— Crankcase Heater Relay
CL
— Switch, Cooling Lockout
CO
— Convenience Outlet
Compr
— Compressor
CR
— Cooling Relay
DLT
— Discharge Line Thermostat
ECR
— Economizer Relay
ECT
— Economizer Thermostat
EXR
— Exhaust Relay
FCB
— Fan Circuit Breaker
FCPS
— Fan Cycling Pressurestat
FL
— Fusible Link
FRS
— Filter Media Runout Switch
Fu
— Fuse
GV
- Gas Valve
Gnd
— Ground
HA
— Heat Anticipator
HC
— Heater Contactor
HPS
HR
Htr
I
IFC
I FCB
IFM
IP
LAT
LLS
LPS
LS
MCR
(MC)
MHR
(MH)
MUR
(MU)
IM.C.
N.O.
NS
OAT.
OFC
OFCB
OFM
Pig
R
LEGEND
— High Pressure Switch
— Holding Relay
— Heater
— Ignitor
— Indoor Fan Contactor
— Indoor Fan Circuit Breaker
— Indoor Fan Motor
— Internal Protector
— Low Ambient Thermostat
— Liquid Line Solenoid
— Low-Pressure Switch
— Limit Switch
— Master Cooling Relay
— Master Heating Relay
— Master Unit Relay
— Normally Closed
— Normally Open
— Night Setback Switch
— Outdoor Air Thermostat
—
Outdoor Fan Contactor
—
Outdoor Fan Circuit Breaker
— Outdoor Fan Motor
— Plug
— Resistor
RB
Sw
TB
TC
TH
TM
T ran
ZB
<
□
o
' o
A
□□ s
Relay Board
Switch
Terminal Block
Thermostat, Cooling
Thermostat, Heating
Timer Motor
Transformer
Zone Board
Receptacle
Plug
Terminal Block
Terminal (marked)
Terminal (unmarked)
Circuit Board Terminal
Splice
Terminal, Circuit Board,
Factory Connected
Terminal, Circuit Board,
Field or Accessory
Factory Wiring
Accessory or Field Wiring
Circuit Board Run
To
indicate
common
potential
only,
not
to
indicate wire.