Carrier 50TJ016-028 specifications Hps, Htr, Ifc, Ifr, Lps, Ofc, Pri

LEGEND AND NOTES FOR FIG. 37 AND 38

AHA — Adjustable Heat Anticipator BRK W/AT — Breaks with Amp Turns

C— Contactor, Compressor

CB — Circuit Breaker

CC — Cooling Compensator

CH — Crankcase Heater

CLO — Compressor Lockout COMP — Compressor Motor

CR — Control Relay

DAT — Discharge Air Thermistor

DM — Damper Motor

DU — Dummy Terminal

EC — Enthalpy Control EQUIP — Equipment

FL — Fuse Link

FLA — Full Load Amps

FPT — Freeze Protection Thermostat

FU — Fuse

		LEGEND
GND — Ground			TB	— Terminal Block
HC	— Heater Contactor		TC	— Thermostat Cooling
HPS	— High-Pressure Switch		TH	— Thermostat Heating
HTR	— Heater		TRAN — Transformer
IFC	—	Indoor-Fan Contactor		Terminal (Marked)
IFCB — Indoor-Fan Circuit Breaker
IFM	—	Indoor-Fan Motor		Terminal (Unmarked)
IFR	— Indoor-Fan Relay
L	—	Light		Terminal Block
LOR — Lockout Relay
LPS	—	Low-Pressure Switch		Splice
LS	— Limit Switch
NEC —		National Electrical Code		Factory Wiring
OAT	— Outdoor-Air Thermostat
				Field Control Wiring
OFC	— Outdoor-Fan Contactor
OFM	— Outdoor-Fan Motor			Option/Accessory Wiring
OP	—	Overcurrent Protection		To indicate common potential
PL	—	Plug Assembly
				only; not to represent wiring.
PRI	— Primary

NOTES:

1.Compressor and fan motor(s) thermally protected; 3-phase motors protected against primary single-phasing conditions.

2.If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equivalent.

3.TRAN1 is wired for 230 v (60 Hz) or 220 v (50 Hz) operation. If unit is 208 v, dis- connect the black wires from the ORN TRAN wire and reconnect to the RED

TRAN wire, apply wirenuts to wires.

5.IFCB must trip amps is equal to or less than 140% FLA.

6.The CLO locks out the compressor to prevent short cycling on compressor over- load and safety devices. Before replacing CLO, check these devices.

7.Jumpers are omitted when unit is equipped with EconoMi$er.

8.Number(s) indicates the line location of used contacts. A bracket over (2) num- bers signifies a single-pole, double-throw contact. An underlined number sig- nifies a normally closed contact. Plain (no line) number signifies a normally open contact.

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