Carrier 50HQP072-120

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

Contents

Main Installation, Start-Up, and Service Instructions CONTENTS SAFETY CONSIDERATIONS AQUAZONE 50HQP072-120 Horizontal Water Source Heat Pumps with PURON Refrigerant (R-410A) 50 Hz GENERAL INSTALLATION Step 1 Check Jobsite Step 2 Chec k Unit Page a50-8531 Fig. 1 Unit Dimensions Step 3 Locate Unit Step 4 Mount Unit Step 5 Install Duct System Step 6 Install Condensate Piping Drain Step 7 Field Con ver t Air Dischar ge Step 8 Install Piping Connections Step 9 Install Field Power Supply Wiring Page Table 2 Water Quality Guidelines Fig. 12 50HQP072-120 Units Typical Control Wiring with Complete C Control Page Fig. 14 Premierlink Controller Applications Wiring with Complete C Control LEGEND NOTE: Reversing valve is on in Cooling mode. Fig. 15 Premierlink Controller Applications Wiring with Deluxe D Control LEGEND NOTE: Reversing valve is on in Cooling mode. Table 3A Electrical Data 50HQP072-120 Standard Units POWER BLOCK Step 10 Install Field Control Wiring PRE-START-UP System Chec kout Airflow and External Static Pressure Table 5 Blower Data 50HQP072 a50-8544 Table 6 Blower Data 50HQP096 Table 7 Blower Data 50HQP120 FIELD SELECTABLE INPUTS Complete C Control Jumper Settings (See Fig. 12) Complete C Control DIP Switches Deluxe D Control Jumper Settings (See Fig. 13) Deluxe D Contr ol DIP Switches Deluxe D Control Accessory Relay Configura- tions START-UP Operating Limits Air Coil Cleaning Start Up System Scr oll Compressor Rotation Unit Start-Up in Heating Mode Flow Regulati on Flushing Antifreeze Cooling T o wer/Boiler Systems Ground Coupled, Closed Loop and Plateframe Heat Exchanger W ell Systems OPERATION P o wer Up Mode Units with Aquazone Complete C Control SYSTEM TEST Te s t M o d e Retry Mode Aquazone Deluxe D Control LED Indica- tors SERVICE Filter s W ater Coil Condensate Drain P ans Refrigerant System Condensate Drain Cleaning Compressor Fan M ot ors Belt Air Coil Checkin g System Char ge Blower F an P erformance Adjustment TROUBLESHOOTING Thermistor Contr ol Sensors Table 18 Troubleshooting Table 18 Troubleshooting (cont) Page Page Page HEATING CYCLE ANALYSIS COOLING CYCLE ANALYSIS *Use 500 for water, 485 for antifreeze. (kW)