Orion-system MUA II Controller Manuel d'utilisateur

MUA II ControllerTechnical Guide FACTORY CONTROLS SYSTEM

Technical GuideMUA II Controller10Outside Air Temperature SensorThe Outside Air Sensor must be wired as shown in the illustration be-low for proper o

VAV/CAV Controller Technical Guide11Figure 12: Humidity Sensor WiringGNDINPUTSGNDAOUT1AOUT2GND+VDCAIN1AIN2AIN3AIN4AIN5AIN7MUA II Controller Board250

Technical GuideMUA II Controller12Start-up & CommissioningIn order to have a trouble free start-up it is important to follow a fewsimple procedur

VAV/CAV Controller Technical Guide13Initialization:Upon applying power to the MUA II controller the following shouldoccur:On system powerup a 30 secon

Technical GuideMUA II Controller14Sequence Of OperationsMUA Operation OverviewThe MUA controller is designed to control an HVAC unit to providefresh

VAV/CAV Controller Technical Guide15Condition ModeOutside Dewpoint rises above theDewpoint Setpoint.DehumidificationOAT drops below the Cool SetpointV

Technical GuideMUA II Controller16HeatThis mode occurs when the controller reads an OAT one HeatingDeadBand below the Supply Air Setpoint and a Dewpo

VAV/CAV Controller Technical Guide17Sequence Of OperationsOther Control OptionsFan Proof Of Flow SwitchThe MUA II controller can monitor a Fan Proof o

Technical GuideMUA II Controller18Sequence Of OperationsWhen the analog outputs are forced, the display on the Modular ServiceTool or front-end can b

VAV/CAV Controller Technical Guide19If the COMM LED does not operate as indicated above, first check theaddress switch setting. Verify the address swi

Table Of ContentsController Overview ...

Technical GuideMUA II Controller20Temperature – Resistance – Voltage For Type III 10 K Ohm Thermistor SensorsTemp(ºF)Resistance(Ohms)Voltage @Input

VAV/CAV Controller Technical Guide21OE265 Relative Humidity Transmitters – Humidity vs. VoltageHumidityPercentage(RH)Voltage @Input(VDC)HumidityPercen

Technical GuideMUA II Controller22Notes

VAV/CAV Controller Technical Guide23Notes

Form: AO-MUAII-TGD-01A Printed in the USA November 2002All rights reserved Copyright 2002WattMaster Controls Inc.•8500 NW Riv

MUA II Controller 3 Technical GuideFeaturesThe MUA II Controller Board is designed with 5 usable analog inputs,and 5 relay outputs. The controllers i

Technical GuideMUA II Controller4UL 5A250VACG5L-114P-PSOMRONCONTACT:24VDCUL 5A250VACG5L-114P-PSOMRONCONTACT:24VDCUL 5A250VACG5L-114P-PSOMRONCONTACT:2

VAV/CAV Controller Technical Guide5RS-485CommunicationsLoop ConnectionTypicalPin 1IndicatorRAMChipEPROMChipPALChipRS-485CommunicationsDriver ChipReal

Technical GuideMUA II Controller6Relay #2 - #5 Configurable RelaysThese relays are located on the MUA Controller. Configuration orderand options are

VAV/CAV Controller Technical Guide77. Before applying power to the MUA II controller, be sureto recheck all wiring connections and terminationsthoroug

Technical GuideMUA II Controller824VACPOWERINPUTConnect toMUAController BoardWARNING!!Observe Polarity! All boards must be wired with GND-to-GND and

VAV/CAV Controller Technical Guide9Space Temperature SensorA Space Temperature Sensor is used with the MUA II controller toprovide for Supply Air Temp