Carrier AQUAZONE 50PEC09-18 Installation, Start-up And Service Instructions Manual

Also see for 50PEC09-18 Aquazone: Installation, Start-Up and Service Instructions Product data Product data Installation, Start-Up and Service Instructions Installation, Start-Up and Service Instructions

40Table 13 — Approximate Fluid Volume (gal)per 100 ft of PipeLEGENDNOTE: Volume of heat exchanger is approximately 1.0 gallon.Table 14 — Antifreeze Percentages by VolumeCooling Tower/Boiler Systems — These systemstypically use a common loop maintained at 60 to 90 F. Carrierrecommends using a closed circuit evaporative cooling towerwith a secondary heat exchanger between the tower and thewater loop. If an open type cooling tower is used continuously,chemical treatment and filtering will be necessary.Ground Coupled, Closed Loop and PlateframeHeat Exchanger Well Systems — These systems al-low water temperatures from 30 to 110 F. The external loopfield is divided up into 2 in. polyethylene supply and returnlines. Each line has valves connected in such a way that uponsystem start-up, each line can be isolated for flushing using onlythe system pumps. Air separation should be located in the pip-ing system prior to the fluid re-entering the loop field.OPERATIONPower Up Mode — The unit will not operate until all theinputs, terminals and safety controls are checked for normaloperation.NOTE: The compressor will have a 5-minute anti-short cycledelay upon power up.Units with Aquazone™ Complete C ControlSTANDBY — The Y and W terminals are not active in Stand-by mode, however the O and G terminals may be active, de-pending on the application. The compressor will be off.COOLING — The Y and O terminals are active in Coolingmode. After power up, the first call to the compressor will ini-tiate a 5 to 80-second random start delay and a 5-minute anti-short cycle protection time delay. After both delays are com-plete, the compressor is energized.NOTE: On all subsequent compressor calls the random startdelay is omitted.HEATING STAGE 1 — Terminal Y is active in HeatingStage 1. After power up, the first call to the compressor willinitiate a 5 to 80-second random start delay and a 5-minuteanti-short cycle protection time delay. After both delays arecomplete, the compressor is energized.NOTE: On all subsequent compressor calls the random startdelay is omitted.HEATING STAGE 2 — To enter Stage 2 mode, terminal W isactive (Y is already active). Also, the G terminal must be activeor the W terminal is disregarded. The compressor relay will re-main on and EH1 (emergency heat) is immediately turned on.EH2 will turn on after 10 minutes of continual Stage 2 demand.NOTE: EH2 will not turn on (or if on, will turn off) if FP1(freeze protection) temperature is greater than 45 F and FP2 isgreater than 110 F.EMERGENCY HEAT — In Emergency Heat (EH) mode,terminal W is active while terminal Y is not. Terminal G mustbe active or the W terminal is disregarded. EH1 is immediatelyturned on. EH2 will turn on after 5 minutes of continuousemergency heat demand.Units with Aquazone Deluxe D ControlSTANDBY/FAN ONLY — The compressor will be off. Thefan enable, fan speed, and reversing valve (RV) relays will beon if inputs are present. If there is a Fan 1 demand, the fanenable will immediately turn on. If there is a Fan 2 demand, thefan enable and fan speed will immediately turn on.NOTE: DIP switch 5 on S1 does not have an effect upon Fan 1and Fan 2 outputs.HEATING STAGE 1 — In Heating Stage 1 mode, the fan en-able and compressor relays are turned on immediately. Oncethe demand is removed, the relays are turned off and the con-trol reverts to Standby mode. If there is a master/slave or dualcompressor application, all compressor relays and relatedfunctions will operate per their associated DIP switch 2 settingon S1.HEATING STAGE 2 — In Heating Stage 2 mode, the fan en-able and compressor relays remain on. The fan speed relay isturned on immediately and turned off immediately once the de-mand is removed. The control reverts to Heating Stage 1 mode.If there is a master/slave or dual compressor application, allcompressor relays and related functions will operate per theirassociated DIP switch 2 setting on S1.HEATING STAGE 3 — In Heating Stage 3 mode, the fan en-able, fan speed and compressor relays remain on. The EH1 out-put is turned on immediately. With continuing Heat Stage 3 de-mand, EH2 will turn on after 10 minutes. EH1 and EH2 areturned off immediately when the Heating Stage 3 demand is re-moved. The control reverts to Heating Stage 2 mode.Output EH2 will be off if FP1’s temperature is greater than45 F AND FP2 (when shorted) is greater than 110 F duringHeating Stage 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 is notactive.EMERGENCY HEAT — In Emergency Heat mode, the fanenable and fan speed relays are turned on. The EH1 output isturned on immediately. With continuing emergency heat de-mand, EH2 will turn on after 5 minutes. Fan enable and fanspeed relays are turned off after a 60-second delay. The controlreverts to Standby mode.Output EH1, EH2, fan enable, and fan speed will be ON ifthe G input is not active during Emergency Heat mode.COOLING STAGE 1 — In Cooling Stage 1 mode, the fanenable, compressor and RV relays are turned on immediately.If configured as stage 2 (DIP switch set to OFF) then the com-pressor and fan will not turn on until there is a stage 2 demand.The fan enable and compressor relays are turned off immedi-ately when the Cooling Stage 1 demand is removed. The con-trol reverts to Standby mode. The RV relay remains on untilthere is a heating demand. If there is a master/slave or dualcompressor application, all compressor relays and related func-tions will track with their associated DIP switch 2 on S1.COOLING STAGE 2 — In Cooling Stage 2 mode, the fanenable, compressor and RV relays remain on. The fan speed re-lay is turned on immediately and turned off once the CoolingStage 2 demand is removed. The control reverts to CoolingStage 1 mode. If there is a master/slave or dual compressorPIPE DIAMETER (in.) VOLUME (gal.)Copper 1 4.11.25 6.41.5 9.2Rubber Hose 1 3.9Polyethylene 3/ 4 IPS SDR11 2.81 IPS SDR11 4.51 1/4 IPS SDR11 8.01/ 2 IPS SDR11 10.92 IPS SDR11 18.01 1/4 IPS SCH40 8.31 1/2 IPS SCH40 10.92 IPS SCH40 17.0IPS — Internal Pipe SizeSCH — ScheduleSDR — Standard Dimensional RatioANTIFREEZEMINIMUM TEMPERATURE FOR FREEZEPROTECTION (F)10 15 20 25Methanol (%) 25 21 16 10100% USP Food GradePropylene Glycol (%) 38 30 22 15