User ManualTable of ContentsAvailable Models6Downflow66–8 ton610–18 ton620–28 ton6Upflow front-return66–8 ton610–18 ton620–28 ton6Upflow rear-return66–8 ton610–18 ton620–28 ton6Indoor rear-discharge centrifugal condenser66–8 ton610–18 ton620–28 ton6Indoor top-discharge centrifugal condenser66–8 ton610–18 ton620–28 ton6Overview8Introduction8Capacity8Air pattern8Control8Configuration9Air-cooled9Water-cooled9Glycol-cooled9Remote-condensing9Front access9Humidity control9Compliance9Model Selection10Standard Features12Microprocessor controller12Status12Alarms12Setpoints12Configuration12Common alarm contact13Run times13Security13Monitoring13Cool inhibit13Cool override13Remote shutdown13Remote relay shutdown.13Overall cabinet13Blower assembly14Electrical panel14Humidifier14Electric reheat14Refrigeration system and compressor14Cooling coil15Condenser15Air filter15Water-regulating valves15Airflow sensor15Clogged filter alarm15Emergency drain pan16Optional Features18Emergency/ environmental18Smoke detector(s)18Firestat18Water detector(s)18Essential/non-essential lockout18External components18Floorstand18Air deflector18Plenum18Duct flange18Control/monitoring19Custom alarm dry contact closures19Redundant group control19Remote display panel19Remote sensor(s)19Monitoring system19Environmental monitoring unit19Reheat20Hot water or steam reheat20Hot gas reheat20System Components20Premium efficiency motor(s)20High efficiency filter(s)20Prefilter(s)20Condensate pump20High pressure water regulating valve(s)20Flared filter-drier connection20Hot gas bypass20Pressure gauges.20Performance Specifications22Net cooling capacity—air/remote condensing22Net cooling capacity—water23Net cooling capacity—glycol24Performance Data26Air system26Coolant requirements26Pump system26Water regulating valve–2-Way/3-Way, single seated27Humidification—solid state electrode canister27Filters27Evaporator coil27Compressor—scroll27Electric Reheat28Hot gas reheat28Hot water reheat28Steam reheat28Drycooler28Centrifugal indoor condenser28Physical data29Connection sizes29Electrical Data30Electric Reheat—6–14 ton30Electric Reheat—18–28 ton31Steam/hot water/or no-reheat—6–14 ton32Steam/hot water/or no-reheat—18–28 ton33Indoor centrifugal condenser units34*Performance Specifications @ 95 F Ambient (AIR/GLYCOL/RC) or @ 105 F Condensing (WATER)22*Performance Specifications @ 95 F Ambient (AIR/GLYCOL/RC) or @ 105 F Condensing (WATER)23*Performance Specifications @ 95 F Ambient (AIR/GLYCOL/RC) or @ 105 F Condensing (WATER)24Guide Specifications36General36Summary36Design requirements36Submittals36Quality assurance36Product36Microprocessor36Cabinet and frame37Blower system37Electrical38Humidifier38Reheat38Refrigeration system38Cooling coil38Air filters38Individual systems39Air-cooled system39Water-and glycol-cooled systems40Options41Smoke detector(s)41Firestat41Water detector(s)41Remote sensor(s)41Remote shutdown41Essential/non-essential lockout41Floorstand41Air Deflector41Top-discharge plenum41Duct flange41Redundant group control41Remote display panel41Monitoring system42Environmental monitoring unit42Hot water reheat42Steam reheat42Hot gas reheat42Premium efficiency motor(s)42High efficiency filter(s)42Prefilter(s)42Condensate pump, factory installed42Condensate pump, ship loose42350 PSI water regulating valves42Flared connections for filter-drier42Hot gas bypass42Dimensional Data44Downflow—6–8 ton44Downflow—10–18 ton45Downflow—20–28 ton46Upflow front-return—6–8 ton47Upflow front-return—10–18 ton48Upflow front-return—20–28 ton49Upflow rear-return—6–8 ton50Upflow rear-return—10–18 ton51Upflow rear-return—20–28 ton52Indoor rear-discharge centrifugal condenser—6–8 ton53Indoor rear-discharge centrifugal condenser—10–18 ton54Indoor rear-discharge centrifugal condenser—20–28 ton55Indoor top-discharge centrifugal condenser—6–8 ton56Indoor top-discharge centrifugal condenser—10–18 ton57Indoor top-discharge centrifugal condenser—20–28 ton58Air-Cooled Condensers and Drycoolers60Key to the model number60Air-cooled condenser—physical data61Air-cooled condenser—electrical data62Single-fan air-cooled condenser—6 ton63Dual-fan air-cooled condenser—6–14 ton64Triple-fan air-cooled condenser—14–20 ton65Dual-fan air-cooled condenser—20–26 ton66Triple-fan air-cooled condenser—26–28 ton67Drycooler68Glycol cooled drycooler—physical data68Glycol cooled drycooler—electrical data68Dual-fan fluid cooler—6–8 ton69Triple-fan fluid cooler—10–12 ton70Triple-fan fluid cooler—20–28 ton72Pump Specifications74Pump performance74Pump electrical data74Guidelines for Installation76Room preparation76Unit location76Service access76Receiving the unit76Rigging77Floorstand77Utility connections77Power unit77Humidifier connections77Condensate drain77Water supply to humidifier771. The humidifier fill valve orifice is sized for supply water pressure from 30 PSIG (210 kPa) to...772. For cases above 90 PSIG (630 kPa), install a pressure-reducing valve in the water feed line to...773. With extremely dirty or muddy water sources, proper filtration is required on the units incomi...774. DO NOT use softened water with the humidifier. Softened water is too conductive.775. DO NOT use completely demineralized water with the humidifier. The minerals allow the electrod...776. DO NOT use a hot water source. Doing so will cause deposits that will eventually block the fil...777. Water supplies with high conductivity (above 700 mW) must be preconditioned for proper operati...78Water supply78Dual-fan fluid cooler—14–18 ton71APC Worldwide Customer Support80Entire contents copyright © 2001 American Power Conversion. All rights reserved. Reproduction in ...80Size: 1.54 MBPages: 80Language: EnglishOpen manual