Zanussi ZR 25/1 W Specifications

R-410ASERIES 20 J**ZR 15 - 25 Ton60 Hertz 349209-JIM-H-0514TABLE OF CONTENTSGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

349209-JIM-H-051410 Johnson Controls Unitary ProductsFigure 6: J15 thru 25 ZR Unit Dimensions Rear ViewNOTE: Units are shipped with the bottom duct o

349209-JIM-H-0514Johnson Controls Unitary Products 11Figure 7: J15 thru 25 ZR Unit Dimensions Rain HoodNote: ELEC/ELEC Models: Units and ductwork are

349209-JIM-H-051412 Johnson Controls Unitary ProductsFigure 8: J15 thru 25 ZR Roof CurbDuctworkDuctwork should be designed and sized according to the

349209-JIM-H-0514Johnson Controls Unitary Products 13Figure 9: Fixed Outdoor Air DamperCondensate DrainPlumbing must conform to local codes. Use a sea

349209-JIM-H-051414 Johnson Controls Unitary Productselectrically grounded in accordance with NEC and CEC as specified above and/or local codes.Voltag

349209-JIM-H-0514Johnson Controls Unitary Products 15Figure 11: Field Wiring Disconnect - Cooling Unit With/Without Electric HeatThermostat WiringThe

349209-JIM-H-051416 Johnson Controls Unitary ProductsFigure 12: Typical Field WiringTHERMOSTAT 1TERMINALS( RCB )REHEATCONTROL BOARDRCRHY1Y2W1W2GCX1X3X

349209-JIM-H-0514Johnson Controls Unitary Products 17Table 8: Electrical Data J15 thru 25 ZR - Standard Drive Without Powered Convenience Outlet Size

349209-JIM-H-051418 Johnson Controls Unitary Products J15 thru 25 ZR - Standard Drive With Powered Convenience Outlet Size(Tons)VoltCompressors(each)

349209-JIM-H-0514Johnson Controls Unitary Products 19 J15 thru 25 ZR - High Static Drive Without Powered Convenience Outlet Size(Tons)VoltCompressors

349209-JIM-H-05142 Johnson Controls Unitary ProductsGeneralJohnson Controls Series 20 J**ZR models are either single package air conditions equipped w

349209-JIM-H-051420 Johnson Controls Unitary Products J15 thru 25 ZR - High Static Drive With Powered Convenience Outlet Size(Tons)VoltCompressors(ea

349209-JIM-H-0514Johnson Controls Unitary Products 21J25ZR - Low Static Drive Without Powered Convenience Outlet Size(Tons)VoltCompressors(each)OD Fa

349209-JIM-H-051422 Johnson Controls Unitary ProductsTable 9: J15 thru 25 ZR Physical Data ComponentModelsJ15ZR J20ZR J25ZRNominal Tonnage 15 20 25AH

349209-JIM-H-0514Johnson Controls Unitary Products 23Optional Electric HeatThe factory-installed heaters are wired for single point power supply. Powe

349209-JIM-H-051424 Johnson Controls Unitary ProductsOptional Gas HeatThese gas-fired heaters have aluminized-steel or optional stainless steel, tubul

349209-JIM-H-0514Johnson Controls Unitary Products 25Gas ConnectionThe gas supply line can be routed within the space and roof curb, exiting through t

349209-JIM-H-051426 Johnson Controls Unitary ProductsCheck all connections for leaks when piping is completed using a soap solution. NEVER USE A FLAME

349209-JIM-H-0514Johnson Controls Unitary Products 27KeypadThe four navigation buttons illustrated in Fig. 16 are used to scroll through the menus and

349209-JIM-H-051428 Johnson Controls Unitary ProductsEnthalpy SettingsWhen the OA temperature, enthalpy and dew point are below the respective setpoin

349209-JIM-H-0514Johnson Controls Unitary Products 29ductwork and to the atmosphere. Connect the tubing from the 'HIGH' pressure tap of the

349209-JIM-H-0514Johnson Controls Unitary Products 3Wear safety glasses and work gloves. Use quenching cloth and have a fire extinguisher available du

349209-JIM-H-051430 Johnson Controls Unitary ProductsFactory-installed VFDThe factory-installed VFD is mounted in the Blower Access Compartment above

349209-JIM-H-0514Johnson Controls Unitary Products 31with the unit and need to be connected after the drive is installed.A terminal block located in t

349209-JIM-H-051432 Johnson Controls Unitary ProductsFigure 19: Altitude/Temperature Correction FactorsThe examples below will assist in determining t

349209-JIM-H-0514Johnson Controls Unitary Products 33Drive Selection1. Determine side or bottom supply duct application.2. Determine desired airflow3.

349209-JIM-H-051434 Johnson Controls Unitary ProductsTable 16: Air Flow Performance - Side Duct ApplicationJ15ZR (15 Ton) Side DuctAir Flow(CFM)Availa

349209-JIM-H-0514Johnson Controls Unitary Products 35J25ZR (25 Ton) Side DuctAir Flow(CFM)Available External Static Pressure - IWG10.4 0.6 0.8 1.0 1.2

349209-JIM-H-051436 Johnson Controls Unitary ProductsTable 17: Air Flow Performance - Bottom Duct ApplicationJ15ZR (15 Ton) Bottom DuctAir Flow(CFM)Av

349209-JIM-H-0514Johnson Controls Unitary Products 37J25ZR (25 Ton) Bottom DuctAir Flow(CFM)Available External Static Pressure - IWG10.4 0.6 0.8 1.0 1

349209-JIM-H-051438 Johnson Controls Unitary ProductsAir BalanceStart the supply air blower motor. Adjust the resistances in both the supply and the r

349209-JIM-H-0514Johnson Controls Unitary Products 39Supply Air Drive AdjustmentThe RPM of the supply air blower will depend on the required CFM, the

349209-JIM-H-05144 Johnson Controls Unitary ProductsNomenclatureZRJ15 N24 A 2 A AA 2 0 1 2 4 AZ = A/C, Single Pkg., R-410AProduct Category2 = Second G

349209-JIM-H-051440 Johnson Controls Unitary ProductsOptional VAV Startup and ControlFor units with VFD and VAV control, the unit must first be put in

349209-JIM-H-0514Johnson Controls Unitary Products 41room thermostat is set in the "AUTO" position) and drives the economizer dampers from f

349209-JIM-H-051442 Johnson Controls Unitary ProductsEconomizer With Optional Intelli-comfort II™ With Power ExhaustThe power exhaust motor is energiz

349209-JIM-H-0514Johnson Controls Unitary Products 43controlled. On any fault, only the associated system will be affected by any safety/preventive ac

349209-JIM-H-051444 Johnson Controls Unitary ProductsFigure 22: Reheat Control BoardRY1Y2GW1OCCCW2P4P5P6P3COMHGRRHGRHUMK1K2K4K3`MODESELECTIONJUMPERDEH

349209-JIM-H-0514Johnson Controls Unitary Products 45Figure 23: Reheat Controls - Part 1Figure 24: Reheat Controls - Part 2UCBUNIT CONTROLBOARDRHBREHE

349209-JIM-H-051446 Johnson Controls Unitary ProductsFigure 25: System Piping SchematicElectric Heating Sequence Of OperationsThe following sequence d

349209-JIM-H-0514Johnson Controls Unitary Products 47Electric Heat Operation ErrorsTemperature LimitIf the UCB senses zero volts from the high tempera

349209-JIM-H-051448 Johnson Controls Unitary Productsspeed of the draft motor reaches approximately 2500 RPM, the centrifugal switch contact, located

349209-JIM-H-0514Johnson Controls Unitary Products 49Safety ControlsThe UCB monitors the temperature limit switch of gas heat units.The control circui

349209-JIM-H-0514Johnson Controls Unitary Products 5InstallationInstallation Safety InformationRead these instructions before continuing this applianc

349209-JIM-H-051450 Johnson Controls Unitary ProductsStart-Up (Cooling)Prestart Check ListAfter installation has been completed:1. Check the electrica

349209-JIM-H-0514Johnson Controls Unitary Products 51Shut Down1. Set the thermostat to the lowest temperature setting.2. Turn “OFF” all electric power

349209-JIM-H-051452 Johnson Controls Unitary ProductsPilot CheckoutThe pilot flame should envelope the end of the flame sensor. To adjust pilot flame,

349209-JIM-H-0514Johnson Controls Unitary Products 53Charging The UnitFigure 31: J15ZR (15 Ton) Charging ChartFigure 32: J20ZR (20 Ton) Charging Chart

349209-JIM-H-051454 Johnson Controls Unitary ProductsFigure 33: J25ZR (25 Ton) Charging ChartTroubleshootingCooling Troubleshooting GuideOn calls for

349209-JIM-H-0514Johnson Controls Unitary Products 55'RESET' on the drive's keypad and take any corrective action as needed. If the mot

349209-JIM-H-051456 Johnson Controls Unitary ProductsTo test, disconnect the Mate-N-Locks and jumper between the WHITE and YELLOW wires of the UCB’s M

349209-JIM-H-0514Johnson Controls Unitary Products 572. Check for line voltage at the compressor contactor, M1, and that the contactor is pulled in. C

349209-JIM-H-051458 Johnson Controls Unitary Products1. Place the thermostat fan switch in the “ON” position. If the supply air blower motor energizes

349209-JIM-H-0514Johnson Controls Unitary Products 59making good electrical connection. Check to make sure that the ceramic insulator on the pilot ign

349209-JIM-H-05146 Johnson Controls Unitary ProductsFigure 1: J15 thru 25 ZR Component LocationUnit Control Board 110 Volt Convenience Outlet(“Powered

349209-JIM-H-051460 Johnson Controls Unitary ProductsFigure 34: Unit Control BoardTable 27: Unit Control Board Flash CodesFLASH CODE DESCRIPTIONGREENL

349209-JIM-H-0514Johnson Controls Unitary Products 61Unit Control Board Option SetupOption Byte Setup• Enter the Option Setup mode by pushing the OPTI

349209-JIM-H-051462 Johnson Controls Unitary ProductsStart-Up Sheet1034349-UCL-A-0313START-UP & SERVICE DATA INSTRUCTIONSTART-UP CHECKLISTDate: __

349209-JIM-H-0514Johnson Controls Unitary Products 631034349-UCL-A-03132 Unitary Products GroupSAFETY WARNINGSThe inspections and recording of data ou

349209-JIM-H-051464 Johnson Controls Unitary Products1034349-UCL-A-0313Unitary Products Group 3REFERENCEGeneral Inspection Completed See NotesUnit ins

349209-JIM-H-0514Johnson Controls Unitary Products 651034349-UCL-A-03134 Unitary Products GroupOperating Measurements - Air FlowELECTRICAL DATAT1 - T2

349209-JIM-H-051466 Johnson Controls Unitary Products1034349-UCL-A-0313Unitary Products Group 5OPERATING MEASUREMENTS - COOLINGREFRIGERANT SAFETIESOPE

Subject to change without notice. Printed in U.S.A. 349209-JIM-H-0514Copyright © 2014 by Johnson Controls, Inc. All rights reserved. Supersedes: 3492

349209-JIM-H-0514Johnson Controls Unitary Products 7LocationUse the following guidelines to select a suitable location for these units:1. Unit is desi

349209-JIM-H-05148 Johnson Controls Unitary ProductsFigure 2: Unit 4 Point Load WeightFigure 3: Unit 6 Point Load WeightFigure 4: Center of GravityAll

349209-JIM-H-0514Johnson Controls Unitary Products 9Figure 5: J15 thru 25 ZR Unit Dimensions Front ViewNote: All entry holes should be sealed to preve