York DM072 Manuel d'installation

INSTALLATION MANUALCAUTION: READ ALL SAFETY GUIDES BEFORE YOU BEGIN TO INSTALL YOUR UNIT.SAVE THIS MANUALSUNLINE™GAS/ELECTRIC SINGLE PACKAGEAIR CONDIT

364987-YIM-C-010910 Johnson Controls Unitary ProductsCLEARANCESAll units require certain clearances for proper operationand service. Installer must ma

364987-YIM-C-0109Johnson Controls Unitary Products 11COMPRESSORSUnits are shipped with compressor mountings factory-adjusted and ready for operation.U

364987-YIM-C-010912 Johnson Controls Unitary ProductsTYPICAL POWER WIRINGTYPICAL CONTROL WIRINGFIGURE 3 - TYPICAL FIELD POWER & CONTROL WIRINGREFE

364987-YIM-C-0109Johnson Controls Unitary Products 13THERMOSTATThe room thermostat should be located on an insidewall approximately 56 inches above th

364987-YIM-C-010914 Johnson Controls Unitary ProductsOPTIONS/ACCESSORIESELECTRIC HEATThe factory- or field-installed heaters are wired for sin-gle poi

364987-YIM-C-0109Johnson Controls Unitary Products 15GAS PIPINGProper sizing of gas piping depends on the cubic feetper hour of gas flow required, spe

364987-YIM-C-010916 Johnson Controls Unitary Products6. The furnace and its individual manual shut-offvalve must be disconnected from the gas supplypi

364987-YIM-C-0109Johnson Controls Unitary Products 17L.P./propane gas is an excellent solvent and specialpipe compound must be used when assembling pi

364987-YIM-C-010918 Johnson Controls Unitary ProductsPOWER EXHAUST/BAROMETRIC RELIEF DAMPER AND RAIN HOOD The instructions for the power exhaust/barom

364987-YIM-C-0109Johnson Controls Unitary Products 19FIGURE 7 - ENTHALPY SETPOINT ADJUSTMENT40(4)70(21)50(10)55(13)60(16)65(18)35(2)45(7)75(24)80(27)3

364987-YIM-C-01092 Johnson Controls Unitary ProductsTABLE OF CONTENTSGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

364987-YIM-C-010920 Johnson Controls Unitary Products FIGURE 9 - FOUR AND SIX POINT LOADINGTABLE 6: CENTER OF GRAVITY (ALL MODELS)DIMENSION 6 TONX 44”

364987-YIM-C-0109Johnson Controls Unitary Products 21TABLE 9: DM PHYSICAL DATAMODELSDM072EVAPORATORBLOWERCentrifugal Blower (Belt Drive) (Dia. x Wd. i

364987-YIM-C-010922 Johnson Controls Unitary ProductsTABLE 11: DF PHYSICAL DATAMODELSDF072EVAPORATORBLOWERCentrifugal Blower (Belt Drive) (Dia. x Wd.

364987-YIM-C-0109Johnson Controls Unitary Products 23 TABLE 13: ELECTRICAL DATA - DM072 DIRECT DRIVE W/O POWERED CONV. OUTLETSize(Tons)VoltCompressors

364987-YIM-C-010924 Johnson Controls Unitary Products TABLE 15: ELECTRICAL DATA - DM072 BELT DRIVE HIGH STATIC W/O POWERED CONV. OUTLETSize(Tons)VoltC

364987-YIM-C-0109Johnson Controls Unitary Products 25 TABLE 17: ELECTRICAL DATA - DM072 BELT DRIVE W/POWERED CONV. OUTLETSize(Tons)VoltCompressors(ea

364987-YIM-C-010926 Johnson Controls Unitary Products TABLE 19: ELECTRICAL DATA - DF072 DIRECT DRIVE W/O POWERED CONVENIENCE OUTLETSize(Tons)VoltComp

364987-YIM-C-0109Johnson Controls Unitary Products 27 TABLE 21: ELECTRICAL DATA - DF072 BELT DRIVE HIGH STATIC W/O POWERED CONVENIENCE OUTLETSize(Ton

364987-YIM-C-010928 Johnson Controls Unitary Products TABLE 23: ELECTRICAL DATA - DF072 BELT DRIVE WITH POWERED CONVENIENCE OUTLETSize(Tons)VoltCompre

364987-YIM-C-0109Johnson Controls Unitary Products 29TABLE 25: ELECTRIC HEAT CORRECTION FACTORSNOMINAL VOLTAGE VOLTAGE kW CAP. MULTIPLIER208208 0.7524

364987-YIM-C-0109Johnson Controls Unitary Products 3LIST OF FIGURESFig. # Pg. #1 RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . 102 COMPRESSOR

364987-YIM-C-010930 Johnson Controls Unitary ProductsFIGURE 11 - UNIT DIMENSIONS (6 TON COOLING/GAS HEAT) FRONT VIEWFIGURE 12 - UNIT WITH ECONOMIZER

364987-YIM-C-0109Johnson Controls Unitary Products 31FIGURE 13 - UNIT WITH FIXED OUTDOOR AIR/MOTORIZED DAMPER RAINHOODDETAIL “B”FIGURE 14 - UNIT DIMEN

364987-YIM-C-010932 Johnson Controls Unitary ProductsFIGURE 15 - DISCONNECT/BLOWER ACCESS LOCATIONDisconnect Switch Locationand Motor Access Panel for

364987-YIM-C-0109Johnson Controls Unitary Products 33 TABLE 29: SUPPLY AIR BLOWER PERFORMANCE (DM072 BELT DRIVE) - SIDE DUCT APPLICATIONAirFlow(CFM)Av

364987-YIM-C-010934 Johnson Controls Unitary Products TABLE 33: SUPPLY AIR BLOWER PERFORMANCE (DF072 BELT DRIVE) - SIDE DUCT APPLICATIONAirFlow(CFM)Av

364987-YIM-C-0109Johnson Controls Unitary Products 351. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR

364987-YIM-C-010936 Johnson Controls Unitary ProductsExample Supply Air Blower PerformanceAir Flow(CFM)Available External Static Pressure - IWG0.2 0.4

364987-YIM-C-0109Johnson Controls Unitary Products 37PHASINGCheck for proper compressor rotation. If the blower orcompressors rotate in the wrong dire

364987-YIM-C-010938 Johnson Controls Unitary Products2. Insert at least 8" of 1/4 inch tubing into each ofthese holes for sufficient penetration

364987-YIM-C-0109Johnson Controls Unitary Products 39gized. After completing the specified fan on delay forcooling, the UCB will energize the blower m

364987-YIM-C-01094 Johnson Controls Unitary ProductsLIST OF TABLESTbl. # Pg. #1 UNIT APPLICATION DATA (DM, DF) . . . . . . . . . . . 92 CONTROL WIRE

364987-YIM-C-010940 Johnson Controls Unitary ProductsLOW-PRESSURE LIMIT SWITCHThe low-pressure limit switch is not monitored duringthe initial 30 seco

364987-YIM-C-0109Johnson Controls Unitary Products 41FLASH CODESThe UCB will initiate a flash code associated witherrors within the system. Refer to U

364987-YIM-C-010942 Johnson Controls Unitary ProductsHEAT ANTICIPATOR SETPOINTSIt is important that the anticipator setpoint be correct.Too high of a

364987-YIM-C-0109Johnson Controls Unitary Products 43GAS HEAT OPERATION ERRORSDuring furnace operation, the ICB monitors theflame sense circuit, the c

364987-YIM-C-010944 Johnson Controls Unitary ProductsFLAME SENSE CIRCUITThe flame sensor is mounted on the left hand side ofthe burner assembly and is

364987-YIM-C-0109Johnson Controls Unitary Products 45POST START CHECK LIST1. Verify proper system pressures.2. Measure the temperature drop across the

364987-YIM-C-010946 Johnson Controls Unitary ProductsPOST-START CHECK LIST (GAS)After the entire control circuit has been energized andthe heating sec

364987-YIM-C-0109Johnson Controls Unitary Products 47MANIFOLD GAS PRESSURE ADJUSTMENTAdjustments to the high-fire and low-fire (2 stage) gasflow may b

364987-YIM-C-010948 Johnson Controls Unitary ProductsIf the actual input is not within 5% of the furnace rating(with allowance being made for the perm

364987-YIM-C-0109Johnson Controls Unitary Products 49TROUBLESHOOTINGCOOLING TROUBLESHOOTING GUIDEOn calls for cooling, if the compressors are operatin

364987-YIM-C-0109Johnson Controls Unitary Products 5GENERALYORK Model DM and DF units are either single pack-age cooling units equipped with optional

364987-YIM-C-010950 Johnson Controls Unitary Productsunless this option has been disabled through com-puter communications.2. If no economizer is inst

364987-YIM-C-0109Johnson Controls Unitary Products 5114. The UCB can be programmed to lock out compres-sor operation during free cooling and in low am

364987-YIM-C-010952 Johnson Controls Unitary ProductsIGNITION CONTROL BOARDThe ICB controls the ignition of the pilot, the openingand closing of the g

364987-YIM-C-0109Johnson Controls Unitary Products 53PILOT FLAME LOCKOUTThe ICB counts the number of flame losses during thesame call for heat. If mor

364987-YIM-C-010954 Johnson Controls Unitary Productscompared to when it is not, then visually inspectthe heat exchanger tubes.If all of the above are

364987-YIM-C-0109Johnson Controls Unitary Products 559. If the thermostat and UCB are properly wired,replace the UCB.10. If the blower motor runs with

364987-YIM-C-010956 Johnson Controls Unitary ProductsMain burners light but exhibit erratic flame characteristics.1. Adjust air shutters as described

364987-YIM-C-0109Johnson Controls Unitary Products 57FAN ON AND OFF DELAYSThe fan on and off delays can be field adjusted bypressing a combination of

364987-YIM-C-010958 Johnson Controls Unitary Products

364987-YIM-C-0109Johnson Controls Unitary Products 59

364987-YIM-C-01096 Johnson Controls Unitary ProductsREFERENCEAdditional information is available in the following refer-ence forms:• Technical Guide -

Subject to change without notice. Printed in U.S.A. 364987-YIM-C-0109Copyright © 2009 by Johnson Controls, Inc. All rights reserved. Supersedes: 36498

364987-YIM-C-0109Johnson Controls Unitary Products 7PRODUCT NOMENCLATURED M 072 N04 A 2 A AA 1 0 1 2 4 AD = A/C, Single Pkg., R-22Product CategoryA =

364987-YIM-C-01098 Johnson Controls Unitary ProductsINSTALLATIONINSTALLATION SAFETY INFORMATION:Read these instructions before continuing this appli-a

364987-YIM-C-0109Johnson Controls Unitary Products 9LOCATIONUse the following guidelines to select a suitable loca-tion for these units.1. Unit is des