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Carrier
50PTH, PTV specifications
Models:
50PTH
PTV
1
61
64
64
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Troubleshooting
Install
HWR Schematic
Airflow Configuration
Rnet Cable Wire
Fault Descriptions
Alarm Relay Contacts
CFM Adjust Settings
Service
•Cooling is set to Enable
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Contents
SAFETY CONSIDERATIONS
CONTENTS
Installation, Start-Up,and Service Instructions
Step 6 — Install Condensate Drain
GENERAL
INSTALLATION
8.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 Data
UNIT HANGER ISOLATION DETAIL
Fig. 2 — Typical Installation — 50PTH Unit
AIRFLOW CONFIGURATION
Fig. 3 — 50PTV Dimensional Data
AIRFLOW CONFIGURATION
Fig. 4 — 50PTD Dimensional Data
50PTD Unit
Fig. 6 - Typical Downflow Installation
Fig. 7 — Conversion Right Return
Side Discharge to Back Discharge
Step 4 — Mount the Unit
Step 6 — Install Condensate Drain
Fig. 8 — Conversion Left Return
Side Discharge to Back Discharge
Fig. 11 — Trap Condensate Drain
Fig. 10 - Horizontal Unit Pitch
Fig. 12 - Vertical Condensate Connection
Fig. 13 — Typical Ground-WaterPiping Installation
Table 2 — Water Quality Guidelines
Step 8 — Wire Field Power Supply
Table 3 — Metal Hose Minimum Bend Radii
Fig. 14 — Supply/Return Hose Kit
Table 4 — 50PTH,PTV,PTD Electrical Data
ASTAT
— Alarm Relay Contacts
CC— Compressor Contactor
Page
LEGEND
LEGEND
— Alarm Relay Contacts
20 LEGEND
a50-8363
21 LEGEND
8364
ASTAT
Fig. 24 — WSHP Open Control
a50-8571
Table 5 — Field-SuppliedSensors for
Table 7 — Rnet Wiring Specifications
WSHP Open Controller
Table 6 — SPT Sensors
Fig. 26 — Rnet Cable Wire
Step 9 - Wire Field Controls
Table 8 — Rnet Wiring
a50-8443
Fig. 29 - Typical Accessory Wiring
Fig. 27 — Low Voltage Field Wiring
Fig. 30 — AMV Valve Wiring
Fig. 31 — Taco SBV Valve Wiring
Table 9 — Cooling Settings
Step 10 — Operate ECM Interface Board
Table 12 — Dehumidificaton Mode Settings
Table 10 — Heating Settings
Table 13 — Blower Performance Data
Table 14B — WSHP Open — High Fan Airflow
PRE-START-UP
Deluxe D Control Jumper Settings
Complete C Control Jumper Settings
FIELD SELECTABLE INPUTS
Table 15A - DIP Switch Block S2
Units with Modulating Hot Water Reheat HWR Option
Accessory 1 Relay Options
Table 15B — DIP Switch Block S2 —
Table 17 - HWR Operating Modes
Operating Limits
START-UP
Fig. 33 — HWR Schematic
a50-8145 Water Out
Unit Start-UpHeating Mode
Unit Start-UpCooling Mode
Table 19 — Water Temperature Change
Through Heat Exchanger
ENTERING
a50-8444
Unit Start-Upwith WSHP Open Controls —
Fig. 34 — BACview6 Display Interface
Table 24 — Coaxial Water Pressure Drop
Units with Aquazone Complete C Control
OPERATION
Units with Aquazone Deluxe D Control
Table 25 — Approximate Fluid Volume gal
Units with WSHP Open Multiple Protocol —
•Cooling is set to Enable
•Damper control is configured for DCV
Status and Alarm Relay Operations
COMPLETE C AND DELUXE D BOARD SYSTEM TEST
Fault Descriptions
Table 27 — Complete C Control Current LED
Aquazone Deluxe D Control LED Indica
SERVICE
Refrigerant Charging
TROUBLESHOOTING
Air Coil Fan Motor Removal
Replacing the WSHP Open Controller’s Bat
Fig. 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 Connectors
a50-8447
Fig. 40 — ECM Troubleshooting Flow Diagram
Moisture Check — To perform moisture check
Table 32 — WSHP Troubleshooting
•Arrange harnesses with “drip loop” under motor
•Check if condensate drain is plugged
Table 32 — WSHP Troubleshooting cont
FAULT
Table 32 — WSHP Troubleshooting cont
LEGEND
APPENDIX A — WSHP OPEN SCREEN CONFIGURATION
BAS — Building Automation System
— Demand Controlled Ventilation
LEGEND
APPENDIX A — WSHP OPEN SCREEN CONFIGURATION cont
BAS — Building Automation System
— Demand Controlled Ventilation
LEGEND
APPENDIX A - WSHP OPEN SCREEN CONFIGURATION cont
BAS — Building Automation System
— Demand Controlled Ventilation
LEGEND
APPENDIX A - WSHP SCREEN OPEN CONFIGURATION cont
BAS — Building Automation System
— Demand Controlled Ventilation
LEGEND
APPENDIX A — WSHP SCREEN OPEN CONFIGURATION cont
LEGEND
APPENDIX A — WSHP SCREEN OPEN CONFIGURATION cont
BAS — Building Automation System
— Demand Controlled Ventilation
Page
Page
Catalog No
Copyright 2010 Carrier Corporation
Printed in U.S.A
Form 50PT-4SI
I.PRE-START-UP
50PTH,PTV,PTD START-UPCHECKLIST
II.START-UP
COOLING CYCLE ANALYSIS
HEATING CYCLE ANALYSIS
FLOW RATE GPM
TEMP. DIFF. DEG. F