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

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LEGEND AND NOTES FOR FIG. 37 AND 38

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

CContactor, 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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Contents Installation ContentsSafety Considerations Unit Roof Curb Details024 Unit Maximum Dimensions Shipping WeightFt-in 016 020Base Unit Dimensions, 50TJ016,020 Base Unit Dimensions, 50TJ024,028 COMPRESSOR/MANUFACTURER Physical DataConcentric Duct Details NEC Make Electrical ConnectionsUnit Voltage GNDQty FLA ea Electrical DataMin Max RLA LRA50TJ Unbalanced 3-Phase Supply VoltageOptional Non-Fused Disconnect Wiring Make Outdoor-Air Inlet AdjustmentsUnit Stage Heat Anticipator Settings016-028 Seal Strip Location Air Hood Cross-Sectional View Default Potentiometer Settings EconoMi$er Switchover Control StrategyChangeover Set Points Motormaster I Control Installation 50TJ016 and 020 Only Wind Baffle Details Motormaster I Sensor Locations Air Quantity Limits START-UPUnit Minimum CFM Maximum CFM Fiop Fan Performance 50TJ016Fan Performance 50TJ020 Fan Performance 50TJ028 Accessory/FIOP Static Pressure in. wg 50TJ020-028 Accessory/FIOP Static Pressure in. wg 50TJ016Fan Rpm at Motor Pulley Settings Base Unit Operation Lubrication ServiceManufacturer Lubricant Evaporator Fan Service and ReplacementCondenser-Fan Adjustment Belt Tension Adjustment To adjust belt tensionEconoMi$er Control Module Flash Code Identification EconoMi$er AdjustmentFlash Code Cause Action Taken by ECONOMI$ER Protective Devices Cooling Charging Chart156/180 Electric Heat208/240 v Amps 200/230 v kW 71.3/82.3 117/135Typical Component Arrangement 50TJ024 Shown IFR HPSHTR IFCCooling Service Analysis TroubleshootingProblem Cause Remedy MoistureMiser Dehumidification Subcooler Service Analysis EconoMi$er TroubleshootingProblem Potential Cause Remedy Call for Free Catalog Service TrainingPage PRE-START-UP START-UP Checklist