American Standard UV05 Instruction Manual

Operation Maintenance Manual OM 751Group: Unit VentilatorPart Number: 106506304Date: August 2002Supercedes: New©2002 AAF®-HermanNelson®Used with AAF

Page 10 of 32 OM 751Table 7. UVC State Names and Numbers (see figure 6)StateStateNormal UVC Modes NumbersNames(ASCII)Off Off 9(57)Night Purge Night Pu

OM 751 Page 11 of 32FAN ONLY MODE (STATE NUMBER A)The Fan Only mode is provided so that the UVC can be forced into aFan Only operation. The LUI or a n

Page 12 of 32 OM 751AUTO MODEAuto mode is provided so that the UVC can be set to automaticallydetermine if heating, cooling or dehumidification is req

OM 751 Page 13 of 32Figure 12. Heat State Operation (Occupied Mode and Auto Fan)Low Limit State (state number E)The Low Limit state is a “non-normal”

Page 14 of 32 OM 751Transition (UVC Mode = Cool)into ORSuper State (UVC Mode = Auto AND Space Temperature = Warm)Operation When the Cool mode super st

OM 751 Page 15 of 32Econ State (state number 3)The Econ state is a “normal” state that the UVC can go into when Coolmode is active. The Econ state is

Page 16 of 32 OM 751Figure 16. Mech State Operation (Occupied Mode and Auto Fan)Transition (Econ ≠ Available)into State OR(Econ ≠ Available AND Mech C

OM 751 Page 17 of 32Pressurize ModeWhen in Pressurize mode the UVC will use the IAF, OAD, and exhaustoutput as needed to pressurize the space. The UVC

Page 18 of 32 OM 751 Priority ResultApplication Override Input  Unit Mode Override Input  Unit Mode Output HeatNormal (Auto)  CoolEmergency He

OM 751 Page 19 of 32OCCUPIED MODEThe occupied mode is the normal day time mode of UVC operation.During occupied mode the UVC will use the occupied hea

Page 2 of 32 OM 751TABLE OF CONTENTSAbbreviations Table ...3Safety Information...

Page 20 of 32 OM 751NOTICENOTICEIf it is intended that the LUI will be used by room occupants to adjustthe Setpoint Offset, then you must not use the

OM 751 Page 21 of 32PI Control LoopsThe MicroTech II UVC uses PI-loop control for heating, cooling andventilation processes within the unit ventilator

Page 22 of 32 OM 751PI CONTROL PARAMETERSAssociated with each PI loop is a set of two adjustable PI parameters.These parameters are “Proportional Band

OM 751 Page 23 of 32Indoor Air Fan OperationThe UVC supports a 3-speed IA fan: Low, Medium, and High. TheUVC will calculate the effective fan speed an

Page 24 of 32 OM 751Temperature Comparison with Enthalpy ComparisonEconomizer (optional)The UVC uses four configuration variables to determine if thee

OM 751 Page 25 of 32DX CoolingEvaporator Temperature(Indoor Air Coil)Condenser Temperature(Outdoor Air Coil)12Figure 25. Compressor Envelope in Self-C

Page 26 of 32 OM 751EXTERNAL BINARY INPUT 3This input can be configured as a ventilation lockout (default) orexhaust interlock signal.Ventilation Lock

OM 751 Page 27 of 32All UVC input and output connections and their corresponding unitventilator usage are shown in the following table.Table 21. Input

Page 28 of 32 OM 751DIAGNOSTICS AND SERVICE (continued)SPACE TEMP SENSOR FAILURE ( )The Space Temp Sensor Failure fault will occur when the UVC de

OM 751 Page 29 of 32SPACE CO2 SENSOR FAILURE (OPTIONAL) ( )The Space CO2 Sensor Failure fault will occur when the UVC detectsan open or a short co

OM 751 Page 3 of 32Exhaust Fan On/Off Signal ... 26UVC Input and Output Table...

Page 30 of 32 OM 751UVC CONFIGURATION PARAMETERSThe UVC has been provided with a number of configuration variablesas listed in the following table. Th

OM 751 Page 31 of 32Configuration Parameter Name Abr. Notes DefaultLUI MenuItem Secondary Cool Integral Time 600 secDischarge Air Temp Proportional B

Page 32 of 32 OM 751©2002 McQuay International • www.mcquay.com • 800-432-1342OM 751 (8/02)®This document contains the most current pr

Page 4 of 32 OM 751If the unit ventilator is to be used for temporary heating or cooling,the unit must first be properly commissioned. Failure to comp

OM 751 Page 5 of 32Unit Ventilator Available Protocols Bulletin NumberUnit Ventilator Unit Controller LonWorks® Communications Module IM 729Unit Venti

Page 6 of 32 OM 751Two DigitWhat is Restricted? PasswordDisplayLevel 0 Default level (access all) 10Level 1 Do not allow user to adjust setpoint 21Lev

OM 751 Page 7 of 32LUI Menu ReferenceThe LUI menu eases troubleshooting and simplifies UVC configurationas the most common parameters and system statu

Page 8 of 32 OM 751Table 6. LUI Menu Item List (Continued)Economizer Enable Set economizer status: 0 = disable, 1 = enable. RW x 1Economizer OA Temp S

OM 751 Page 9 of 32State ProgrammingThe MicroTech II UVC takes advantage of state machine programmingto define and control unit ventilator operation.