Carrier 50RTP03-20 specifications Ecr

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BC	— Blower Contactor
CB	— Circuit Breaker

Complete C

a50-8553

LEGEND
Field Line Voltage Wiring	Ground
	Ground

Field Low Voltage Wiring

CO	— Sensor, Condensate Overflow

Printed Circuit Trace

Solenoid Coil

ECR	— Enthalpy Control Relay
FP1	— Sensor, Water Coil Freeze Protection
FP2	— Sensor, Air Coil Freeze Protection
GFI	— Ground Fault Interrupter
HP	— High-Pressure Switch
JW3	— Clippable Field Selection Jumper
LAR	— Low Ambient Relay
LOC	— Loss of Charge Pressure Switch
MAS	— Mixed Air Sensor
OAT	— Outdoor Air Thermostat
PDB	— Power Distribution Block
RVS	— Reversing Valve Solenoid
TB	— Terminal Block

TRANS — Transformer

Factory Line Voltage Wiring

Factory Low Voltage Wiring

Optional Wiring

Relay/Contactor Coil

Thermistor

Condensate Pan

Circuit Breaker

Relay Contacts - N.O.

Relay Contacts - N.C.

Temperature Switch

Switch - Low Pressure

Switch - High Pressure

Wire Nut

NOTES:

1.Compressor and blower motor thermally protected internally.

2.All wiring to the unit must comply with NEC (National Electrical Code) and local codes.

3.208/230-v transformers will be connected for 208-v operation. For 230-v operation, disconnect RED lead at L1, and attach ORG lead to L1. Close open end of RED lead.

4.FPI thermistor provides freeze protection for WATER. When using ANTIFREEZE solutions, cut JW3 jumper.

5.Typical heat pump thermostat wiring shown. Refer to thermostat installation instructions for wiring to the unit. Thermostat wiring must be “Class 1” and voltage rating equal to or greater than unit supply voltage.

6.Factory cut JW1 jumper and dry contact will be available between AL1 and AL2.

7.Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top two stand- offs as shown.)

Fig. 6 — 50RTP03-06 Units — Typical Control Wiring with Complete C Control

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Contents Contents Safety ConsiderationsInstallation GeneralPhysical Data Aquazone 50RTP03-20 Units Dimensions Outside Air Water CondensateIn/Out FPT Drain 03,04 12.57 x In/Out FPT 18.95 x 11/4 10,12 11/250RTP14,20 Unit Dimensions 14,20 18.95 xReturn Air Transition Supply Air Transition Exterior 78.875 82.25 21.00 25.00 19.00 82.875 76.875 27.00 86.25Install Condensate Drain 50 RTPConnect Electrical Wiring Water Quality GuidelinesElectrical Data FLA Hacr50RTP03 Blower Performance Data 50RTP04 Blower Performance Data 50RTP05 Blower Performance Data 50RTP06 Blower Performance Data 50RTP08 Blower Performance Data 3800 39004000 50RTP10 Blower Performance Data 41004200 4300 44004500 460050RTP12 Blower Performance Data 50RTP14 Blower Performance Data 62006400 66006800 700050RTP20 Blower Performance Data 10,000 Rpm 940 956 976 996 1016 1036 1056 1076 1092 Turns OpenECR See legend and notes on 50RTP03-06 Units 50RTP08-20 UnitsHpwr A50-8557 Typical Control Wiring with Deluxe D and LON Controller SizesJ6J5 J1 J8AL1 A50 Units with Deluxe D and Wshp Open Multiple Protocol Controls Wshp Open Control Connect Low Voltage Wiring Compressor-StageReversing Valve Fan 24Vac Hot 24Vac Com Deluxe DComplete C Control Jumper Settings See Deluxe D Control Jumper Settings SeePRE-START-UP Field Selectable InputsDIP Switch Block S2 Accessory 1 Relay Options DIP Switch Block S2 Accessory 2 Relay OptionsUnit Start-Up Cooling Mode Unit Start-Up Heating ModeSTART-UP Operating LimitsUnit Start-Up with Wshp Open Controls BACview6 Display InterfacePage Antifreeze Percentages by Volume OperationUnits with Aquazone Complete C Control Units with Aquazone Deluxe D ControlPage Auxiliary Modulating Hot Water/Steam Heating Reheat System Test Complete C Control LED Code Fault Descriptions Service Aquazone Deluxe D Control LED IndicaRefrigerant Charging Air Coil Fan Motor RemovalReplacing the Wshp Open Controller’s Bat ’ to 4’Troubleshooting FP1 and FP2 Thermistor LocationTroubleshooting Air temperature out of rangeReduced or no water flow Overcharged with refrigerantUnit Does Not Operate Appendix a Wshp Open Screen Configuration Alarm StatusStatus SensorAppendix a Wshp Open Screen Configuration MaintenanceSystem Settings ConfigurationSchedule Appendix a Wshp Screen Open Configuration ServiceTest Configuration Service Electronically Commutated MotorAlarm Page Page Copyright 2010 Carrier Corporation 50RTP START-UP Checklist II. START-UPHeating Cycle Analysis Cooling Cycle AnalysisAlong Dotted Line Catalog No Form 50RTP-1SI Pg CL-2 10A Replaces New