Emerson Liebert Prop Fan Condensing Unit Manuel d'installation

ENVIRONMENTAL CONTROLMINI-MATE2MANUAL8 Tons50 & 60 HzINSTALLATION, OPERATION & MAINTENANCE MANUAL®

4 Product Features1.2 Optional Equipment1.2.1 Canister HumidifierThe optional, factory-installed steam generating humidifier adds pure water

Product Features 51.3 Ancillary (Ship Loose Accessories)1.3.1 Single Point Power KitA Single Point Power Kit allows the connection of a syste

6 Site Preparation and Installation2.0 SITE PREPARATION AND INSTALLATION2.1 Installation ConsiderationsThe evaporator unit is usually mounted

Site Preparation and Installation 72.1.2 Location ConsiderationsLocate the evaporator unit over an unobstructed floor space if possible. This

8 Site Preparation and InstallationFigure 1 System ConfigurationsAir-Cooled SystemsWater-Cooled SystemsGlycol-Cooled SystemsChilled-Water Sys

Site Preparation and Installation 92.2 System Weights2.3 Equipment Inspection (upon receipt)When the unit arrives, do not uncrate equipment u

10 Site Preparation and InstallationFigure 2 Threaded Rod and Hardware Kit Installation2.4.1 Close Coupled InstallationsIf the evaporator and

Site Preparation and Installation 112.4.2 Evaporator Air DistributionFilter Box The optional filter box mounts directly to the return air ope

12 Site Preparation and Installation2.4.3 Piping Connections and Coolant RequirementsDrain LineA 3/4 in. (19.1 mm) female pipe thread (FPT) c

Site Preparation and Installation 13Condensate PumpThe optional condensate pump kit is required when the evaporator is installed below the le

14 Site Preparation and InstallationChilled-Water Piping (chilled-water systems only)Refer to Figure 6 for recommended field installed hardwa

Site Preparation and Installation 15Refrigerant (R-22) PipingAll split systems require two sets of refrigerant lines (two insulated copper su

16 Site Preparation and InstallationRefrigerant Charge Requirements: Total refrigerant charge (R-22) will be required only if units are evacu

Site Preparation and Installation 17Figure 8 Evaporator or Chilled-Water Unit Dimensional Data

18 Site Preparation and Installation2.4.4 Electrical Connections, Evaporator or Chilled-Water Unit Each unit is shipped from the factory with

Site Preparation and Installation 19Figure 9 Evaporator Unit Electrical ConnectionsField supplied, field wired thermostat wire to remote wall

20 Site Preparation and Installation2.5 Indoor Air-Cooled Centrifugal Fan Condensing Unit Installation2.5.1 Location ConsiderationsThe centri

Site Preparation and Installation 212.5.3 Piping ConnectionsDetails for refrigerant (R-22) loop piping are in 2.4.3 - Piping Connections and

22 Site Preparation and InstallationFigure 11 Indoor Air-Cooled Centrifugal Condensing Unit Dimensions and Pipe Connections

Site Preparation and Installation 23Figure 12 Indoor Air-Cooled Centrifugal Condenser Electrical Connections1. 24V GND System 12. 24V Supply

iTABLE OF CONTENTSSYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24 Site Preparation and Installation2.6 Outdoor Air-Cooled Condensing Unit Installation2.6.1 Location ConsiderationsTo insure a satisfactory

Site Preparation and Installation 25Figure 13 Electrical field connections - outdoor condensing unit10 24V Supply Condenser Fan

26 Site Preparation and InstallationFigure 14 Footprint Dimensions - Outdoor Condensing UnitModel Dimensional Data in. (mm) Net Weight60 HZ 5

Site Preparation and Installation 27Figure 15 Piping and Electrical Connections - Outdoor Condensing Unit Model Numbers Electrical Connection

28 Site Preparation and Installation2.7 Indoor Water- and Glycol-Cooled Condensing Unit Installation2.7.1 Location ConsiderationsThe condensi

Site Preparation and Installation 29Figure 16 Indoor Water/Glycol Condensing Unit Dimensional Data1. 24V GND System 12. 24V Supply System 13.

30 Site Preparation and InstallationFigure 17 Indoor Water/Glycol Condensing Unit Electrical Field Connections

Site Preparation and Installation 31Figure 18 System Piping with Indoor Water/Glycol-Cooled Condensing UnitTwo circuits provided. Single circ

32 Site Preparation and Installation2.8 Optional Equipment Piping2.8.1 Free-Cooling Coil (Glycool)The free-cooling coil is a secondary coil l

Site Preparation and Installation 33Figure 20 Optional Free Cooling Coil (3-Way Valve) on Air-Cooled Units

ii 2.7 Indoor Water- and Glycol-Cooled Condensing Unit Installation. . . . . . . . . . . . . . . . . . . 282.7.1 Location Considerations. . . . . . .

34 Site Preparation and Installation2.8.2 Hot Water Reheat CoilBuilding hot water can be piped to a factory-installed hot water reheat coil l

Site Preparation and Installation 352.9 Checklist for Completed Installation___ 1. Proper clearance for service access has been maintained ar

36 Microprocessor Control3.0 MICROPROCESSOR CONTROLThe Microprocessor Control for the Liebert Mini-Mate2 unit features an easy to use menu-dr

Microprocessor Control 373.2 Main Menu <Menu>Press the MENU key to display the Main Menu. The Menu selections (in the following order)

38 Microprocessor Control3.3 SetpointsSetpoints and system setup parameters are kept in nonvolatile memory. Selecting SETPOINTS from the Main

Microprocessor Control 393.7 TimeThe controller time clock must be set to allow for the setback control. The clock uses the 24-hour system (i

40 Microprocessor Control3.10.2 C/F DegreesThe control may be selected to show readings and setpoints in either degrees Fahrenheit (°F) or in

Microprocessor Control 413.11 Change PasswordsThe display will prompt the operator to enter a three digit password when attempting to make ch

42 Microprocessor Control3.14 Alarm Time DelayEach individual alarm can be programmed with a time delay (Table 16), causing the unit to delay

Microprocessor Control 433.17 Custom TextTo modify the two custom alarm messages select “CUSTOM TEXT”. Then select “Custom Text #1,” “Custom

iii4.3 Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

44 Microprocessor Control3.18 Run DiagnosticsBy selecting Run Diagnostics, maintenance personnel can check system inputs, outputs, and con-du

Microprocessor Control 45Test MicroBy selecting this function, the microcontroller will perform a self test lasting approximately 10 seconds.

46 Microprocessor ControlFigure 24 Control Board (Inside Evaporator)Figure 25 Wallbox BoardP18P1P2P3P39P38P40TBP22P36P34P8P32P35P4P43P7P25T-P

System Performance Microprocessor Controls 474.0 SYSTEM PERFORMANCE MICROPROCESSOR CONTROLS4.1 Control Type Response Proportional ControlThe

48 System Performance Microprocessor Controls4.4 Dehumidification / Humidification Percent RequiredThe humidity control for the MM2 is based

Alarms 495.0 ALARMSThe microprocessor control system will audibly and visually signal all ENABLED Alarms (includ-ing two (2) custom alarms).

50 Alarms5.1.3 HumidityThe humidity alarm may be activated under the following conditions:•High: The room return air humidity exceeds the pre

Alarms 515.2 Optional/Custom Alarms5.2.1 Change FilterPeriodically, the return air filters in the evaporator must be changed. The Change Filt

52 System Operation, Testing, and Maintenance6.0 SYSTEM OPERATION, TESTING, AND MAINTENANCEThis section describes system testing, maintenance

System Operation, Testing, and Maintenance 536.2 Maintenance and Component Operation6.2.1 Electric PanelThe electric panel should be inspecte

iv FIGURESFigure 1 System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

54 System Operation, Testing, and Maintenance6.2.4 Electric ReheatReheat element sheets and fins are manufactured with stainless steel. Regul

System Operation, Testing, and Maintenance 55Regulating Valves (Water/Glycol Condensing Units)The water regulating valve automatically regula

56 System Operation, Testing, and MaintenanceReplacement ProceduresCompressor Replacement: Infrequently a fault in the motor insulation may r

System Operation, Testing, and Maintenance 576.2.6 Steam Generating Humidifier - Operation ProceduresSteam generating humidifiers operate eff

58 System Operation, Testing, and MaintenanceReplacing the Humidifier CanisterThe proper procedure to replace the humidifier canister is:1. T

Maintenance Inspection Checklist 597.0 MAINTENANCE INSPECTION CHECKLISTJOB NAME: ______________________________ ROOM TEMP/HUM: _____________

60 Troubleshooting8.0 TROUBLESHOOTINGTable 21 TroubleshootingSymptom Possible Cause Check or RemedyUnit will not startNo power to unit Check

Troubleshooting 61Reheat will not operateDIP switch not set to enable reheat optionSee DIP switch settings Table 20.“HEAT” not displayed at t

The Company Behind the ProductsWith over a million installations around the globe,Liebert is the world leader in computer protectionsystems. Since it

1SYSTEM OVERVIEWTable 1 Model Number NomenclatureEvaporators and Chilled-Water UnitsMMD96E-AHEL0 (example)Indoor Condensing UnitsMCD96ALA00

2 Table 2 Heat Rejection Matchup – 60 HzNominal Capacity Cooling UnitCondensing UnitIndoor Air-Cooled Centrifugal FanOutdoor Air-Cooled Prope

Product Features 31.0 PRODUCT FEATURES1.1 Standard Product FeaturesThe Mini-Mate2 is a temperature/humidity control system designed to be ins