Copyright 2010 Carrier Corporation | Carrier 50HQP072-120 guide

Copyright 2010 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53500077-01

Printed in U.S.A.

Form 50HQP-C1SI

Pg 34

11-10

Replaces: New

Image 34

Carrier 50HQP072-120 specifications Copyright 2010 Carrier Corporation

Contents

Contents Safety Considerations Installation General Physical Data 50HQP072-120 Units Unit Dimensions Typical Horizontal Installation Install Condensate Piping Drain Hanger Brackets Removing Panels Install Field Power Supply Wiring Supply/Return Hose Kit Typical Ground-Water Piping Installation Water Quality Guidelines Material FP2 DPPFP1 Hpwr See legend and notes on SAT LWTSPT Electrical Data 50HQP072-120 Standard Units Electrical Data 50HQP072-120 Dual Point Power UnitsLow Voltage VA Ratings Install Field Control Wiring Jumper Locations PRE-START-UP Blower Data 50HQP072 Airflow Blower Data 50HQP096 Blower Data 50HQP120 Deluxe D Control Jumper Settings See Fig Complete C Control Jumper Settings See FigField Selectable Inputs Accessory DIP Switch Position Relay Options DIP Switch Block S2 Accessory 1 Relay OptionsDIP Switch Block S2 Accessory 2 Relay Options OAD Operating Limits Unit Start-Up in Cooling ModeSTART-UP Start Up System Coaxial Water Pressure Drop Unit Start-Up in Heating ModeSize Operation Approximate Fluid Volume L Per 30 M of PipeAntifreeze Percentages by Volume Units with Aquazone Complete C Control System Test Aquazone Deluxe D Control LED Indica Fault Descriptions ServiceComplete C Control LED Code Gravity Flow Method a50-8586 Refrigerant Charging Air Coil Fan Motor Removal Sheave Alignment Unit Size Component Drive Package 50HQP Troubleshooting Thermistor Nominal Resistance Troubleshooting Fault Heating Cooling Possible Cause Solution Unit Does Not Operate Page Copyright 2010 Carrier Corporation START-UP Checklist II. START-UP Heating Cycle Analysis Cooling Cycle Analysis