Carrier AQUAZONE 50HQP072-120 Installation And Service Instructions Manual

Contents

25immediately once the demand is removed. The control re-verts to Heating Stage 1 mode. If there is a master/slave ordual compressor application, all compressor relays and re-lated functions will operate per their associated DIP switch2 setting on S1.HEATING STAGE 3 — In Heating Stage 3 mode, the FanEnable, Fan Speed and Compressor relays remain on. TheEH1 output is turned on immediately. With continuing HeatStage 3 demand, EH2 will turn on after 10 minutes. EH1and EH2 are turned off immediately when the Heating Stage3 demand is removed. The control reverts to Heating Stage2 mode.Output EH2 will be off if FP1 is greater than 7.2 C ANDFP2 (when shorted) is greater than 43.3 C during HeatingStage 3 mode. This condition will have a 30-secondrecognition time. Also, during Heating Stage 3 mode, EH1,EH2, Fan Enable, and Fan Speed will be ON if G input isnot active.EMERGENCY HEAT — In Emergency Heat mode, theFan Enable and Fan Speed relays are turned on. The EH1output is turned on immediately. With continuing Emergen-cy Heat demand, EH2 will turn on after 5 minutes. Fan En-able and Fan Speed relays are turned off after a 60-seconddelay. The control reverts to Standby mode.Output EH1, EH2, Fan Enable, and Fan Speed will beON if the G input is not active during Emergency Heatmode.COOLING STAGE 1 — In Cooling Stage 1 mode, the FanEnable, compressor and RV relays are turned on immediate-ly. If configured as stage 2 (DIP switch set to OFF) then thecompressor and fan will not turn on until there is a stage 2demand. The Fan Enable and compressor relays are turnedoff immediately when the Cooling Stage 1 demand is re-moved. The control reverts to Standby mode. The RV relayremains on until there is a heating demand. If there is a mas-ter/slave or dual compressor application, all compressor re-lays and related functions will track with their associatedDIP switch 2 on S1.COOLING STAGE 2 — In Cooling Stage 2 mode, the FanEnable, compressor and RV relays remain on. The FanSpeed relay is turned on immediately and turned off oncethe Cooling Stage 2 demand is removed. The control revertsto Cooling Stage 1 mode. If there is a master/slave or dualcompressor application, all compressor relays and relatedfunctions will track with their associated DIP switch 2 onS1.NIGHT LOW LIMIT (NLL) STAGED HEATING — InNLL staged Heating mode, the override (OVR) input be-comes active and is recognized as a call for heating and thecontrol will immediately go into a Heating Stage 1 mode.With an additional 30 minutes of NLL demand, the controlwill go into Heating Stage 2 mode. With another additional30 minutes of NLL demand, the control will go into HeatingStage 3 mode.SYSTEM TESTSystem testing provides the ability to check the controloperation. The control enters a 20-minute Test mode by mo-mentarily shorting the test pins. All time delays are in-creased 15 times.Test Mode — To enter Test mode on Complete C or De-luxe D controls, cycle the fan 3 times within 60 seconds. TheLED (light-emitting diode) will flash a code representing thelast fault when entering the Test mode. The alarm relay willalso power on and off during Test mode. See Tables 14-16. Toexit Test mode, short the terminals for 3 seconds or cycle thepower 3 times within 60 seconds.NOTE: The Deluxe D control has a flashing code and alarmrelay cycling code that will both have the same numericallabel. For example, flashing code 1 will have an alarm relaycycling code 1. Code 1 indicates the control has not faultedsince the last power off to power on sequence.Retry Mode — In Retry mode, the status LED will start toflash slowly to signal that the control is trying to recover froman input fault. The control will stage off the outputs and try toagain satisfy the thermostat used to terminal Y. Once the ther-mostat input calls are satisfied, the control will continue normaloperation.NOTE: If 3 consecutive faults occur without satisfying thethermostat input call to terminal Y, the control will go intolockout mode. The last fault causing the lockout is stored inmemory and can be viewed by entering Test mode.Aquazone™ Deluxe D Control LED Indica-tors — There are 3 LED indicators on the Deluxe D control:STATUS LED — Status LED indicates the current status ormode of the Deluxe D control. The Status LED light is green.TEST LED — Test LED will be activated any time the De-luxe D control is in Test mode. The Test LED light is yellow.FAULT LED — Fault LED light is red. The fault LED willalways flash a code representing the last fault in memory. Ifthere is no fault in memory, the fault LED will flash code 1 onthe and appear as 1 fast flash alternating with a 10-secondpause. See Table 16.Table 14 — Complete C Control Current LEDStatus and Alarm Relay OperationsLEGENDNOTES:1. Slow flash is 1 flash every 2 seconds.2. Fast flash is 2 flashes every 1 second.3. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followedby a 10-second pause. This sequence will repeat continually until thefault is cleared.LED STATUS DESCRIPTION OF OPERATION ALARM RELAYOnNormal Mode OpenNormal Mode withPM WarningCycle(closed 5 sec.,Open 25 sec.)Off Complete C Control isnon-functional OpenSlow FlashFault Retry OpenOver/Under Voltage Shutdown Open(Closed after15 minutes)Fast Flash Lockout ClosedFlashing Code 1 Test Mode — No fault in memory Cycling Code 1Flashing Code 2 Test Mode — HP Fault in memory Cycling Code 2Flashing Code 3 Test Mode — LP Fault in memory Cycling Code 3Flashing Code 4 Test Mode — FP1 Fault in memory Cycling Code 4Flashing Code 5 Test Mode — FP2 Fault in memory Cycling Code 5Flashing Code 6 Test Mode — CO Fault in memory Cycling Code 6Flashing Code 7 Test Mode — Over/Undershutdown in memory Cycling Code 7Flashing Code 8 Test Mode — PM in memory Cycling Code 8Flashing Code 9 Test Mode — FP1/FP2Swapped fault in memory Cycling Code 9CO — Condensate OverflowFP — Freeze ProtectionHP — High PressureLED — Light-Emitting DiodeLP — Low PressurePM — Performance Monitor