APC DX Service Manual

®TMComputer Room Air-Conditioning—60 HzTechnical Data

6APC NetworkAIR™ FM-DXStandard FeaturesDouble Skin PanelsThe frame is bolt together 12 gauge formed steel for maximum strength. Cabinet is serviceabl

Standard FeaturesAPC NetworkAIR™ FM-DX 7Steam Generating HumidifierThe humidifier utilizes a pure steam generator specifically designed for precision

8APC NetworkAIR™ FM-DXOptional FeaturesBrazed Plate CondenserWater- and Glycol-cooled systems employ a brazed plate heat exchanger. The condenser is

Optional FeaturesAPC NetworkAIR™ FM-DX 9Additional Programmable Input/Output Interface ModulesEach system is equipped with up to 3 additional discret

10 APC NetworkAIR™ FM-DXMicroprocessor ControllerMicroprocessor Controller The microprocessor controller is standard on each system. The con-troller

APC NetworkAIR™ FM-DX 11Upflow modelsFM Upflow componentsMotor and fan assemblyElectrical junction boxSteam headUser interface boxDX coilFirest

12 APC NetworkAIR™ FM-DXDownflow modelsFM Downflow componentsAir filtersHumidifier (optional)Economizer coil (optional)Condensate pump (optional)

APC NetworkAIR™ FM-DX 13Performance Specifications—Air CooledNET COOLING MODE CAPACITY - BTU/HR* FM 35 FM 5080F DB, 67F WB (26.7C DB, 19.4C WB) 50% R

Performance Specifications—Air Cooled14 APC NetworkAIR™ FM-DXPerformance Specifications - Air CooledFM-DX FM 35 FM 50AIR SYSTEM -- DIRECT DRIVE CENT

APC NetworkAIR™ FM-DX 15Performance Specifications—Water CooledNET COOLING CAPACITY - BTU/HR* FM 35 FM 5080F DB, 67F WB (26.7C DB, 19.4C WB) 50% RHTo

Performance Specifications—Water Cooled16 APC NetworkAIR™ FM-DXPerformance Specifications—Water CooledFM-DX FM 35 FM 50ECONOMIZER -- NET COOLING CAPA

APC NetworkAIR™ FM-DX 17Performance Specifications—Glycol CooledNET COOLING CAPACITY - BTU/HR* FM 35 FM 5080F DB, 67F WB (26.7C DB, 19.4C WB) 50% RHT

Performance Specifications—Glycol Cooled18 APC NetworkAIR™ FM-DXPerformance Specifications—Glycol CooledFM-DX FM 35 FM 50ECONOMIZER -- NET COOLING CA

APC NetworkAIR™ FM-DX 19Electrical DataAIR COOLEDREHEAT ElectricHUMIDIFIER Electrode Canister - SteamVOLTAGE 208 230 480 600FM 35OA-w/DX 59.7 58.4 27

APC NetworkAIR™ FM-DX 21Dimensional DataFM Downflow* All dimensions are in inches (mm).na0214a16.14 (410)8.66 (220) 15.75 (400)11.81 (300)18.07 (459)

Dimensional Data22 APC NetworkAIR™ FM-DXFM Upflow* All dimensions are in inches (mm).FM upflow, rear-returnna0329a

Dimensional DataAPC NetworkAIR™ FM-DX 23

Dimensional Data24 APC NetworkAIR™ FM-DXFM FloorstandFM Sub-BaseOrderable Floorstand HeightRange12” (FM35) Adjustable 10.5”-13.5”15” (FM35) Adjustabl

Dimensional DataAPC NetworkAIR™ FM-DX 25FM 20” Upflow PlenumFM 24” Upflow Plenum

ContentsAPC NetworkAIR™ FM-DX iOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensional Data26 APC NetworkAIR™ FM-DXFM35 12” Downflow PlenumFM50 18” Downflow Plenumna0717a

APC NetworkAIR™ FM-DX 27Air-Cooled CondensersAir-cooled condenser—performance/electrical dataOHE SKU VoltageAmbient TemperatureAir Quantity Fan/Motor

Air-Cooled Condensers28 APC NetworkAIR™ FM-DX2-fan air-cooled condenser3-fan air-cooled condenserAPC PART CIRCUIT VOLTAGEACCD75028 single 208-230/1/6

Air-Cooled CondensersAPC NetworkAIR™ FM-DX 29 2-fan air-cooled condenser4-fan air-cooled condenserAPC PART CIRCUIT VOLTAGEACCD75040 single 208-230/3/

Air-Cooled Condensers30 APC NetworkAIR™ FM-DX2-fan low-noise condenser3-fan low-noise condenserAPC PART CIRCUIT VOLTAGEACCD75055 single 208-230/3/60A

Air-Cooled CondensersAPC NetworkAIR™ FM-DX 314-fan low-noise condenser5-fan low-noise condenserAPC PART CIRCUIT VOLTAGEACCD75070 single 208-230/3/60A

32 APC NetworkAIR™ FM-DXFluid Coolers*Fluid coolers can be selected for multiple indoor air conditioning units from the factory. Consult factory for

Fluid CoolersAPC NetworkAIR™ FM-DX 333-fan fluid cooler2-fan fluid coolerAPC PART VOLTAGEACFC75126 208-230/1/60ACFC75198 208-230/3/60ACFC75199 480/3/

Fluid Coolers34 APC NetworkAIR™ FM-DX3-fan fluid cooler4-fan fluid coolerAPC PART VOLTAGEACFC75202 208-230/3/60ACFC75203 480/3/60ACFC75143 600/3/60AP

Fluid CoolersAPC NetworkAIR™ FM-DX 353-fan low-noise fluid cooler4-fan low-noise fluid cooler APC PART VOLTAGEACFC75158 208-230/3/60ACFC75159 480/3/6

ii APC NetworkAIR™ FM-DX

APC NetworkAIR™ FM-DX 37Pump SpecificationsPump performancePump connection sizesPump electrical dataHP (kW) 3/4 (.56) 1 (.75) 1.5 (1.1) 2 (1.5)LINE

Pump Specifications38 APC NetworkAIR™ FM-DXFM Single Pump PackageFM Dual Pump Package

APC NetworkAIR™ FM-DX 39Piping Connections*Dimensions are shown in inches (millimeters)Air outlets (downflow only)Main powerWater/glycol out or ho

40 APC NetworkAIR™ FM-DXElectrical ConnectionsUpflow ModuleController boardDownflow ModuleDIP switchesMain circuit breakerDB-9 connector/RS232

APC NetworkAIR™ FM-DX 41Guide SpecificationsPART 1 — PART 1 GENERAL1.01 SUMMARYA. The environmental control system shall be designed specifically for

Guide Specifications42 APC NetworkAIR™ FM-DXPART 2 — PART 2 PRODUCT2.01 STANDARD COMPONENTSA. CABINET CONSTRUCTION1. Double Skin Panels:Exterior pane

Guide SpecificationsAPC NetworkAIR™ FM-DX 43D. MASTER CONTROLLER1. Monitoring and Configuration: The master display shall allow monitoring and config

Guide Specifications44 APC NetworkAIR™ FM-DXE. ELECTRICAL PANEL1. The control voltage shall be 24 VAC, class 2 circuit. The electrical panel shall co

Guide SpecificationsAPC NetworkAIR™ FM-DX 45L. EVAPORATOR FREEZE PROTECTION1. Suction pressure shall be actively monitored and controlled to eliminat

APC NetworkAIR™ FM-DX 1OverviewThe modular, Floor Mount com-puter room air-conditioning system offers efficient, effective and eco-nomical cooling fo

Guide Specifications46 APC NetworkAIR™ FM-DX2.02 OPTIONAL COMPONENTSA. BRAZED PLATE CONDENSER1. Water and glycol cooled systems shall employ a brazed

Guide SpecificationsAPC NetworkAIR™ FM-DX 47G. CABLE WATER DETECTOR1. A leak detection sensing cable shall be shipped loose with the unit. If water o

Guide Specifications48 APC NetworkAIR™ FM-DXN. ENVIRONMENTAL MONITORING AND MANAGEMENT1. Environmental Monitoring Unit: A stand-alone unit shall perf

Guide SpecificationsAPC NetworkAIR™ FM-DX 49PART 3 — PART 3 INDIVIDUAL SYSTEMS3.01 AIR-COOLEDA. The indoor unit shall consist of an evaporator sectio

Guide Specifications50 APC NetworkAIR™ FM-DXB. FLUID COOLER1. Outdoor Fluid Cooler: The fluid cooler casing shall be of aluminum, and all structural

Guide SpecificationsAPC NetworkAIR™ FM-DX 513.05 MULTICOOLA. Air, Water and Glycol systems shall have the option of a chilled water coil that is desi

APC NetworkAIR™ FM-DX 53Guidelines for InstallationThe NetworkAIR FM provides reliable, accurate temperature and humidity control of computer rooms,

Guidelines for Installation54 APC NetworkAIR™ FM-DXReceiving the unit Your NetworkAIR FM unit has been completely tested and inspected prior to shipm

Guidelines for InstallationAPC NetworkAIR™ FM-DX 55Water supply to humidifier 1. The humidifier fill valve orifice is sized for supply water pressure

2APC NetworkAIR™ FM-DXScalable Solution for Critical EnvironmentsTemperature and Humidity Design ConditionsMaintenance of temperature and humidity de

APC Worldwide Customer SupportCustomer support for this or any other APC product is available at no charge in any of the following ways:• Visit the AP

Scalable Solution for Critical EnvironmentsAPC NetworkAIR™ FM-DX 3Dedicated Dehumidification CycleA dedicated dehumidification cycle allows the syste

Scalable Solution for Critical Environments4APC NetworkAIR™ FM-DXHumidity ControlIncreasing heat densities in data centers are leading to more hot sp

Scalable Solution for Critical EnvironmentsAPC NetworkAIR™ FM-DX 5Glycol-Cooled ConfigurationGlycol-cooled systems are completely charged and factory