Carrier AQUAZONE 50HQL072-120 Installation, Start-up And Service Instructions Manual

Carrier AQUAZONE 50HQL072-120 Installation, Start-up And Service Instructions Manual Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500034-01 Printed in U.S.A. Form 50H,V-10SI Pg 1 7-07 Replaces: 50H,V-9SIBook 1 4Tab 5a 5aInstallation, Start-Up, andService InstructionsCONTENTSPageSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2• STORAGE• PROTECTION• INSPECT UNITStep 3 — Location of Unit . . . . . . . . . . . . . . . . . . . . . . . 10Step 4 — Mounting the Unit . . . . . . . . . . . . . . . . . . . . . 10• HORIZONTAL UNITS• VERTICAL UNITSStep 5 — Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . 10• SOUND ATTENUATION• EXISTING DUCT SYSTEMStep 6 — Condensate Drain . . . . . . . . . . . . . . . . . . . . . 11• HORIZONTAL UNITS• VERTICAL UNITS• VENTINGStep 7 — Piping Connections . . . . . . . . . . . . . . . . . . . 11• WATER LOOP APPLICATIONS• GROUND-LOOP APPLICATIONS• GROUND-WATER APPLICATIONSStep 8 — Field Power Supply Wiring . . . . . . . . . . . . 12• POWER CONNECTION• SUPPLY VOLTAGE• EXTERNAL LOOP POWER CONNECTION• 208-VOLT OPERATIONStep 9 — Field Control Wiring . . . . . . . . . . . . . . . . . . . 14• THERMOSTAT CONNECTIONS• WATER FREEZE PROTECTION• AIR COIL FREEZE PROTECTION• ACCESSORY CONNECTIONS• WATER SOLENOID VALVESPRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-30System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Airflow and External Static Pressure . . . . . . . . . . . 24FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . 30-33Complete C Control Jumper Settings. . . . . . . . . . . 30Complete C Control DIP Switches. . . . . . . . . . . . . . 30Deluxe D Control Jumper Settings . . . . . . . . . . . . . 30Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 30Units with Modulating Hot Water Reheat(HWR) Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Deluxe D Control Accessory RelayConfigurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33,34Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Start Up System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 33Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 33Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 33PageFlow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 34Ground Coupled, Closed Loop and PlateframeHeat Exchanger Well Systems . . . . . . . . . . . . . . . . 34OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35,36Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Units with Aquazone Complete C Control . . . . . . . 35Units with Aquazone Deluxe D Control . . . . . . . . . . 35Units with HWR Option. . . . . . . . . . . . . . . . . . . . . . . . . . 35SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36,37Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Aquazone Deluxe D Control LED Indicators . . . . . 36SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37,38Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 37Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 37Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 38Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 38TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 39-41Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3950HQL,VQL START-UP CHECKLIST . . . . . . CL-1,CL-2SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment canbe hazardous due to system pressure and electrical compo-nents. Only trained and qualified service personnel shouldinstall, repair, or service air-conditioning equipment.Untrained personnel can perform basic maintenance func-tions of cleaning coils and filters and replacing filters. All otheroperations should be performed by trained service personnel.When working on air-conditioning equipment, observe precau-tions in the literature, tags and labels attached to the unit, andother safety precautions that may apply.Improper installation, adjustment, alteration, service, main-tenance, or use can cause explosion, fire, electrical shock orother conditions which may cause personal injury or propertydamage. Consult a qualified installer, service agency, or yourdistributor or branch for information or assistance. Thequalified installer or agency must use factory-authorized kits oraccessories when modifying this product. Refer to the individ-ual instructions packaged with the kits or accessories wheninstalling.IMPORTANT: Read the entire instruction manual beforestarting installation.AQUAZONE™50HQL072-12050VQL080-300Water Source Heat Pump Units