Manuals / Carrier / Household Appliance / Heat Pump

Carrier 50PTH, PTV specifications Legend, Alarm Relay Contacts

Models: 50PTH PTV

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BM (ECM)

SW1

SW2

SW3

SW4

SW5

SW6

SW7

SW8

SW9

OFF ON

ECM

INTERFACE

BOARD

19

LEGEND

AL

— Alarm Relay Contacts

P1

— Field Wiring Terminal Block

ASTAT

— Aquastat

RVS

— Reversing Valve Solenoid

BM

— Blower Motor

TRANS

— Transformer

BR

— Blower Relay

Field Line Voltage Wiring

CB

— Circuit Breaker

Field Low Voltage Wiring

CC

— Compressor Contactor

CO

— Sensor, Condensate Overflow

Printed Circuit Trace

DDC

— Direct Digital Control

DTS

— Discharge Temp Switch

Relay/Contactor Coil

ECM

— Electronically Commutated Motor

FP1

— Sensor, Water Coil Freeze Protection

Condensate Pan

FP2

— Sensor, Air Coil Freeze Protection

HP

— High-Pressure Switch

Solenoid Coil

HWG

— Hot Water Generator

JW1

— Jumper, Alarm

Thermistor

NSB

— Digital Night Setback

LOC

— Loss of Charge Pressure Switch

Ground

MV

— Motorized Valve

Wire Nut

NEC

— National Electrical Code

BM

(ECM)

		J1
		Y
W	R	S1
	R	CFM
		SW1

O						SW2
O	G					SW3
						SW4
						SW5
Y2	G					SW6
						SW7
						SW8
Y1	G					SW9
Y1	G						OFF	ON
							OFF	ON
G	G	TB1				G	DEHUM
		TB1
R	C	Y2 Y1 G	O	W	C	R DH AL1 A	A	AL1

ECM INTERFACE BOARD LAYOUT

NOTES:

1.Compressor and blower motor thermally protected internally.

2.All wiring to the unit must comply with NEC and local codes.

3.FP1 thermistor provides freeze protection for water. When using antifreeze solutions, cut JW3 jumper.

4.Typical Aquazone™ 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.

5.24-v alarm signal shown. For dry alarm contact, cut AL2 dry jumper and dry contact will be available between AL1 and AL2.

6.Transformer secondary ground via Deluxe D board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

7.Fan motors are factory wired for medium speed. For high or low speed, remove BLU wire from fan motor speed tap “M” or “3” and connect to “H” or “2” for high speed or “L” or “4” for low speed.

8.Place jumpers on 2 and 3, ECM board, when dehumidification mode is used.

Fig. 20 — Wiring of 50PTH,PTV,PTD026-072 Units with Deluxe D Controller, Three Phase (460 V)

Image 19

Carrier 50PTH, PTV specifications Legend, Alarm Relay Contacts

Contents

Step 6 — Install Condensate Drain CONTENTSSAFETY CONSIDERATIONS Installation, Start-Up,and Service InstructionsGENERAL INSTALLATION8.Provide an unobstructed path to the unit within the closet or mechanical room. Space should be sufficient to allow removal of unit if necessary AIRFLOW CONFIGURATION Fig. 1 - 50PTH026-072Dimensional DataUNIT HANGER ISOLATION DETAIL Fig. 2 — Typical Installation — 50PTH UnitAIRFLOW CONFIGURATION Fig. 3 — 50PTV Dimensional DataAIRFLOW CONFIGURATION Fig. 4 — 50PTD Dimensional DataSide Discharge to Back Discharge Fig. 6 — Typical Downflow Installation —50PTD Unit Fig. 7 — Conversion Right ReturnSide Discharge to Back Discharge Step 6 — Install Condensate DrainStep 4 — Mount the Unit Fig. 8 — Conversion Left ReturnFig. 11 — Trap Condensate Drain Fig. 10 - Horizontal Unit PitchFig. 12 - Vertical Condensate Connection Fig. 13 — Typical Ground-WaterPiping Installation Fig. 14 — Supply/Return Hose Kit Step 8 — Wire Field Power SupplyTable 2 — Water Quality Guidelines Table 3 — Metal Hose Minimum Bend RadiiTable 4 — 50PTH,PTV,PTD Electrical Data ASTAT — Alarm Relay Contacts CC— Compressor Contactor Page LEGEND LEGEND — Alarm Relay Contacts20 LEGEND a50-836321 LEGEND 8364ASTAT Fig. 24 — WSHP Open Control a50-8571Table 6 — SPT Sensors Table 7 — Rnet Wiring SpecificationsTable 5 — Field-SuppliedSensors for WSHP Open Controllera50-8443 Step 9 — Wire Field ControlsFig. 26 — Rnet Cable Wire Table 8 — Rnet WiringFig. 31 — Taco SBV Valve Wiring Fig. 27 — Low Voltage Field WiringFig. 29 — Typical Accessory Wiring Fig. 30 — AMV Valve WiringTable 10 — Heating Settings Step 10 — Operate ECM Interface BoardTable 9 — Cooling Settings Table 12 — Dehumidificaton Mode SettingsTable 13 — Blower Performance Data Table 14B — WSHP Open — High Fan Airflow PRE-START-UPDeluxe D Control Jumper Settings Complete C Control Jumper SettingsFIELD SELECTABLE INPUTS Table 15B — DIP Switch Block S2 — Units with Modulating Hot Water Reheat HWR OptionTable 15A - DIP Switch Block S2 Accessory 1 Relay OptionsTable 17 - HWR Operating Modes a50-8145 Water Out START-UPOperating Limits Fig. 33 — HWR SchematicThrough Heat Exchanger Unit Start-UpCooling ModeUnit Start-UpHeating Mode Table 19 — Water Temperature ChangeENTERING a50-8444 Unit Start-Upwith WSHP Open Controls —Fig. 34 — BACview6 Display Interface Table 24 — Coaxial Water Pressure Drop Table 25 — Approximate Fluid Volume gal OPERATIONUnits with Aquazone Complete C Control Units with Aquazone Deluxe D ControlUnits with WSHP Open Multiple Protocol — •Cooling is set to Enable •Damper control is configured for DCV Table 27 — Complete C Control Current LED COMPLETE C AND DELUXE D BOARD SYSTEM TESTStatus and Alarm Relay Operations Fault DescriptionsAquazone Deluxe D Control LED Indica SERVICE Replacing the WSHP Open Controller’s Bat TROUBLESHOOTINGRefrigerant Charging Air Coil Fan Motor RemovalFig. 38 — FP1 and FP2 Thermistor Location Fig. 37 — Thermistor Nominal Resistance•Low refrigerant suction pressure Table 30 — ECM Troubleshooting a50-8448 Fig. 39 — ECM Pin Connectorsa50-8447 Fig. 40 — ECM Troubleshooting Flow Diagram•Check if condensate drain is plugged Table 32 — WSHP TroubleshootingMoisture Check — To perform moisture check •Arrange harnesses with “drip loop” under motorTable 32 — WSHP Troubleshooting cont FAULT Table 32 — WSHP Troubleshooting cont— Space Temperature APPENDIX A — WSHP OPEN SCREEN CONFIGURATION— Outdoor Air Temperature SAT — Supply Air Temperature— Space Temperature APPENDIX A — WSHP OPEN SCREEN CONFIGURATION cont— Outdoor Air Temperature SAT — Supply Air Temperature— Space Temperature APPENDIX A - WSHP OPEN SCREEN CONFIGURATION cont— Outdoor Air Temperature SAT — Supply Air Temperature— Space Temperature APPENDIX A - WSHP SCREEN OPEN CONFIGURATION contOutdoor Air Temperature SAT — Supply Air TemperatureLEGEND APPENDIX A — WSHP SCREEN OPEN CONFIGURATION contSpace Temperature APPENDIX A — WSHP SCREEN OPEN CONFIGURATION cont— Outdoor Air Temperature SAT — Supply Air TemperaturePage Page Form 50PT-4SI Copyright 2010 Carrier CorporationCatalog No. Printed in U.S.AI.PRE-START-UP 50PTH,PTV,PTD START-UPCHECKLISTII.START-UP TEMP. DIFF. DEG. F HEATING CYCLE ANALYSISCOOLING CYCLE ANALYSIS FLOW RATE GPM