Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual

Contents

2accessories when modifying this product. Refer to theindividual instructions packaged with the kits or accessorieswhen installing.Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloth for brazing operations. Have fireextinguisher available. Read these instructions thoroughly andfollow all warnings or cautions attached to the unit. Consultlocal building codes and the National Electrical Code (NEC)for special installation requirements.Understand the signal words — DANGER, WARNING,and CAUTION. DANGER identifies the most serious hazardswhich will result in severe personal injury or death. WARN-ING signifies hazards that could result in personal injury ordeath. CAUTION is used to identify unsafe practices, whichwould result in minor personal injury or product and propertydamage.Recognize safety information. This is the safety-alertsymbol ( ). When you see this symbol on the unit and ininstructions or manuals, be alert to the potential for personalinjury.GENERALThis Installation and Start-Up Instructions literature is forAquazone™ water source heat pump systems with Puron re-frigerant.Water source heat pumps (WSHPs) are single-package hori-zontally and vertically mounted units with electronic controlsdesigned for year-round cooling and heating.INSTALLATIONStep 1 — Check Jobsite — Installation, operation andmaintenance instructions are provided with each unit. Beforeunit start-up, read all manuals and become familiar with theunit and its operation. Thoroughly check out the system beforeoperation. Complete the inspections and instructions listedbelow to prepare a unit for installation. See Table 1 for unitphysical data.Horizontal units are designed for indoor installation only.Be sure to allow adequate space around the unit for servicing.See Fig. 1 for overall unit dimensions. Refer to Fig. 2 for an ex-ample of a typical horizontal installation.Step 2 — Check Unit — Upon receipt of shipment atthe jobsite, carefully check the shipment against the bill oflading. Make sure all units have been received. Inspect the car-ton or crating of each unit, and inspect each unit for damage.Ensure the shipping company makes proper notation of anyshortages or damage on all copies of the freight bill. Concealeddamage not discovered during unloading must be reported tothe shipping company within 15 days of receipt of shipment.NOTE: It is the responsibility of the purchaser to file allnecessary claims with the shipping company.1. Verify unit is correct model for entering water tempera-ture of job.2. Be sure that the location chosen for unit installation pro-vides ambient temperatures maintained above freezing.Well water applications are especially susceptible tofreezing.3. Be sure the installation location is isolated from sleepingareas, private offices and other acoustically sensitivespaces.NOTE: A sound control accessory package may be usedto help eliminate sound in sensitive spaces.4. Check local codes to be sure a secondary drain pan is notrequired under the unit.5. Be sure unit is mounted at a height sufficient to providean adequate slope of the condensate lines. If an appropri-ate slope cannot be achieved, a field-supplied condensatepump may be required.6. Provide sufficient space for duct connection.7. Provide adequate clearance for filter replacement anddrain pan cleaning. Do not allow piping, conduit, etc. toblock filter access.8. Provide sufficient access to allow maintenance andservicing of the fan and fan motor, compressor and coils.Removal of the entire unit from the closet should not benecessary.9. Provide an unobstructed path to the unit within the closetor mechanical room. Space should be sufficient to allowremoval of unit if necessary.10. Provide ready access to water valves and fittings, andscrewdriver access to unit side panels, discharge collar,and all electrical connections.11. Where access to side panels is limited, pre-removal of thecontrol box side mounting screws may be necessary forfuture servicing.STORAGE — If the equipment is not needed for immediateinstallation upon its arrival at the jobsite, it should be left in itsshipping carton and stored in a clean, dry area of the buildingor in a warehouse. Units must be stored in an upright positionat all times. If carton stacking is necessary, stack units amaximum of 3 high. Do not remove any equipment from itsshipping package until it is needed for installation.PROTECTION — Once the units are properly positioned onthe jobsite, they must be covered with either a shipping carton,vinyl film, or an equivalent protective covering. Open ends ofpipes stored on the jobsite must be capped. This precaution isWARNINGElectrical shock can cause personal injury and death. Shutoff all power to this equipment during installation. Theremay be more than one disconnect switch. Tag all discon-nect locations to alert others not to restore power until workis completed.CAUTIONThis system uses R-410A, which has higher pressures thanR-22 and other refrigerants. No other refrigerant may beused in this system. Suction tubing design pressure is3068 kPa and liquid tubing design pressure is 4522 kPa.Failure to use gage set, hoses, and recovery systemsdesigned to handle R-410A refrigerant may result in per-sonal injury and equipment damage. If unsure about equip-ment, consult the equipment manufacturer.IMPORTANT: The installation of water source heat pumpunits and all associated components, parts, and accessorieswhich make up the installation shall be in accordance withthe regulations of ALL authorities having jurisdiction andMUST conform to all applicable codes. It is the responsi-bility of the installing contractor to determine and complywith ALL applicable codes and regulations.CAUTIONTo avoid equipment damage, do not use these units as asource of heating or cooling during the construction pro-cess. The mechanical components and filters used in theseunits quickly becomes clogged with construction dirt anddebris which may cause system damage.