McQuay LIA266 Especificaciones

Installation & Maintenance Data Group: WSHP Part Number: 669479203 Date: May 2012IM 1060-3Enfinity™ Large Horizontal

Page 10 of 32 / IM 1060-3Cleaning & Flushing System1. Priortorstoperationofanyconditioner,thewatercirculatingsystemmustbecleanedan

IM 1060-3 / Page 11 of 32Operating LimitsEnvironmentThis equipment is designed for indoor installation only. Shel-tered locations such as attics, gara

Page 12 of 32 / IM 1060-3Additional Information For Initial Start-up Standard Range units CCHUnits are designed to start-up in an ambient of 50°F (10°

IM 1060-3 / Page 13 of 32MicroTech® III ControllerThe control enclosure houses the major operating electri-cal controls including the MicroTech® III c

Page 14 of 32 / IM 1060-3The MicroTech III Controller is a microprocessor-based control board conveniently located in the unit control box for easy ac

IM 1060-3 / Page 15 of 32Figure 13: I/O Expansion Module Configuration Jumper TerminalsJumper Terminals JP1 shorted in units with 2 compressorsJP1 th

Page 16 of 32 / IM 1060-3MicroTech III Controller with Communication Modules FeaturesThe MicroTech III Controller with LonWorks or BACnet Communicatio

IM 1060-3 / Page 17 of 32Table 7: MicroTech® III Controller Terminals Locations and Descriptions H1 - 1 24 24 VAC Power Input H1 - 2 C 24 VAC C

Page 18 of 32 / IM 1060-3Note: A random start delay time between 180 and 240 seconds is generated at power up.Figure 14: MicroTech III unit controll

IM 1060-3 / Page 19 of 32Figure 16: LonWorks® Communication Module Placement on MicroTech® III Controller

Page 2 of 32 / IM 1060-3NomenclatureNote: For illustration purposes only. Not all options available with all models. Please consult Daikin McQuay S

Page 20 of 32 / IM 1060-3Typical Wiring DiagramFigure 17: MicroTech® III Controller with I/O Expansion Module & Communication Module 208/230, 46

IM 1060-3 / Page 21 of 32Typical Wiring DiagramsFigure 18: MicroTech® III Controller with I/O Expansion Module & Communication Module – 208/230,

Page 22 of 32 / IM 1060-3  Wire1shouldrunbetweentheS1terminalonthethermostat and the S1 terminal on the remote sensor  Wire2shouldrunb

IM 1060-3 / Page 23 of 32Figure 25: Temperature Sensor Wiring to MicroTech III Unit Controller (669529001)MicroTech III Unit Con-troller TB1 Terminals

Page 24 of 32 / IM 1060-3Figure 28: 2-Way Motorized Valve Wiring to MicroTech III ControllerFigure 29: 2-Way Motorized Valve Wiring Details

IM 1060-3 / Page 25 of 32Motorized Valve/Pump Restart OutputThe MicroTech III controller output, IV/PR (H8) is used to energize a motorized valve actu

Page 26 of 32 / IM 1060-3TroubleshootingThe in and outs of R-410AR-410A is a non-ozone depleting blend of two refrigerants -HFC-125andHFC-32ina

IM 1060-3 / Page 27 of 32Figure 32: Troubleshooting Refrigeration CircuitCharge Undercharge System Low Low Low High Low Low Low Low Pressure

Page 28 of 32 / IM 1060-3Typical Cooling Refrigeration Cycle – Dual CompressorsNote: Typical temperature readings are at full load conditions at ISO-

IM 1060-3 / Page 29 of 32Typical Heating Refrigeration Cycle – Dual CompressorsNote: Typical temperature readings are at full load conditions at ISO-

IM 1060-3 / Page 3 of 32Receiving and Storage Sharp edges can cause personal injury. Avoid contact with them. Use care and wear protective cl

Page 30 of 32 / IM 1060-3Troubleshooting the Water Source Heat Pump UnitFigure 35: Troubleshooting Guide - Unit OperationUnitLow voltage, check power

To avoid electrical shock, personal injury or death, be sure that eld wiring complies with local and national re, safety, and elec-trical codes, a

©2012 McQuay International • www.daikinmcquay.com • 800.432.1342 IM 1160-3 Page 32 of 32 Daikin McQuay Training and DevelopmentNow that

Page 4 of 32 / IM 1060-3Pre-InstallationAir Discharge Conversion ProcedureUnit sizes 072 thru 120 straight discharge unit may be con-verted to an end

IM 1060-3 / Page 5 of 32InstallationUnit Location1. Locate the unit in an area that allows for easy removal ofthelterandaccesspanels.Leaveam

Page 6 of 32 / IM 1060-3InstallationAir BalancingUnit sizes 072 thru 120 are supplied with a variable pitch motorsheavetoaidinairowadjustment.

IM 1060-3 / Page 7 of 32Table 2: 50 Hz Unit - Sheave Adjustment Unit Size Motor HP RPM Range Factory Motor Sheave Settings (RPM) Position

Page 8 of 32 / IM 1060-3Figure 8: Suggested Return Ducting per ASHRAE and SMACNA PublicationsTwo 90° Turns Prior to the Intake(Ductwork Sized Based on

IM 1060-3 / Page 9 of 32Piping1. All units should be connected to supply and return piping inatwo-pipereversereturnconguration.Areverseretur