Carrier Aquazone 50HQL Installation, Start-up And Service Instructions Manual

Also see for AQUAZONE VQL: Operating and troubleshooting

Contents

Carrier Aquazone 50HQL Installation, Start-up And Service Instructions Manual Manual pdf 34 page image

34Table 13 — Aquazone™ D Control Current LED Status and Alarm Relay OperationsLEGEND NOTES:1. If there is no fault in memory, the Fault LED will flash code 1.2. Codes will be displayed with a 10-second Fault LED pause.3. Slow flash is 1 flash every 2 seconds.4. Fast flash is 2 flashes every 1 second.5. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes fol-lowed by a 10-second pause. This sequence will repeat continuallyuntil the fault is cleared.SERVICEPerform the procedures outlined below periodically, asindicated.Filters — Filters must be clean for maximum performance.Inspect filters every month under normal operating conditions.replace when necessary.Water Coil — Keep all air out of the water coil. Checkopen loop systems to be sure the well head is not allowing airto infiltrate the water line. Always keep lines airtight.Inspect heat exchangers regularly, and clean more frequent-ly if the unit is located in a “dirty” environment. The heatexchanger should be kept full of water at all times. Open loopsystems should have an inverted P trap placed in the dischargeline to keep water in the heat exchanger during off cycles.Closed loop systems must have a minimum of 15 PSI duringthe summer and 40 PSI during the winter.Check P trap frequently for proper operation.Condensate Drain Pans — Check condensate drainpans for algae growth twice a year. If algae growth is apparent,consult a water treatment specialist for proper chemical treat-ment. The application of an algaecide every three months willtypically eliminate algae problems in most locations.Refrigerant System — Verify air and water flow ratesare at proper levels before servicing. To maintain sealed circuit-ry integrity, do not install service gauges unless unit operationappears abnormal.Condensate Drain Cleaning — Clean the drain lineand unit drain pan at the start of each cooling season. Checkflow by pouring water into drain. Be sure trap is filled to main-tain an air seal.Air Coil Cleaning — Remove dirt and debris from evap-orator coil as required by condition of the coil. Clean coil witha stiff brush, vacuum cleaner, or compressed air. Use a fincomb of the correct tooth spacing when straightening mashedor bent coil fins.DESCRIPTION STATUS LED(Green)TEST LED(Yellow) FAULT LED (Red) ALARM RELAYNormal Mode On Off Flash Last Fault Code in Memory OpenNormal Mode with PM On Off Flashing Code 8 Cycle (closed 5 sec,open 25 sec, …)D Control is non-functional Off Off Off OpenTest Mode — On Flash Last Fault Code in Memory Cycling Appropriate CodeNight Setback Flashing Code 2 — Flash Last Fault Code in Memory —ESD Flashing Code 3 — Flash Last Fault Code in Memory —Invalid T-stat Inputs Flashing Code 4 — Flash Last Fault Code in Memory —No Fault in Memory On Off Flashing Code 1 OpenHP Fault Slow Flash Off Flashing Code 2 OpenLP Fault Slow Flash Off Flashing Code 3 OpenFP1 Fault Slow Flash Off Flashing Code 4 OpenFP2 Fault Slow Flash Off Flashing Code 5 OpenCO Fault Slow Flash Off Flashing Code 6 OpenOver/Under Voltage Slow Flash Off Flashing Code 7 Open (closed after 15 minutes)HP Lockout Fast Flash Off Flashing Code 2 ClosedLP Lockout Fast Flash Off Flashing Code 3 ClosedFP1 Lockout Fast Flash Off Flashing Code 4 ClosedFP2 Lockout Fast Flash Off Flashing Code 5 ClosedCO Lockout Fast Flash Off Flashing Code 6 ClosedCO — Condensate OverflowESD — Emergency ShutdownFP — Freeze ProtectionHP — High PressureLP — Low PressurePM — Performance MonitorIMPORTANT: When a compressor is removed from thisunit, system refrigerant circuit oil will remain in the com-pressor. To avoid leakage of compressor oil, the refrigerantlines of the compressor must be sealed after it is removed.IMPORTANT: All refrigerant discharged from this unitmust be recovered without exception. Technicians must fol-low industry accepted guidelines and all local, state and fed-eral statutes for the recovery and disposal of refrigerants.IMPORTANT: To avoid the release of refrigerant into theatmosphere, the refrigerant circuit of this unit must only beserviced by technicians which meet local, state and federalproficiency requirements.IMPORTANT: To prevent injury or death due to electricalshock or contact with moving parts, open unit disconnectswitch before servicing unit.IMPORTANT: Units should never be operated with-out a filter.To avoid fouled machinery and extensive unit clean-up,DO NOT operate units without filters in place. DO NOTuse equipment as a temporary heat source duringconstruction.