Canatal M52 User Manual

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

CANATAL

Intelligent Precision Air Conditioning

Canatal M52 Microprocessor

User's Guide

Canatal International Inc.

M52UMCT Oct-03

6300 Edwards Blvd., Mississauga, Ontario, Canada L5T 2V7

Table of Contents

Need help?

Do you have a question about the M52 and is the answer not in the manual?

Questions and answers

Summary of Contents for Canatal M52

Page 1 CANATAL Intelligent Precision Air Conditioning Canatal M52 Microprocessor User’s Guide Canatal International Inc. M52UMCT Oct-03 6300 Edwards Blvd., Mississauga, Ontario, Canada L5T 2V7...
Page 2 M52 Microprocessor User's Guide M52UMCT Oct-03...
Page 3: Table Of Contents
M52 Microprocessor User's Guide Table of Contents Sequence of Operation ..............................6 Phase Loss (OPTION):....................6 Analogue and digital outputs for functions ..............6 DX Demand (Cooling)....................6 Chilled Water......................... 7 DX Demand (Dehumidification): .................. 7 Rapid Dehumidification Feature (All except China units) ..........7 Dual Cooling Units: Series 9 only.................
Page 4 M52 Microprocessor User's Guide Alarm Configuration ....................22 Alarm Response Summary ...................24 Historical Event Log ...............................25 Timer On/Off Schedule..............................26 Review Timer On/Off Schedule..................26 Programming the Timer On/Off Schedule ..............27 Set Clock........................27 Temperature and Humidity Log Graph........................28 Settings .....................................29 Programming Settings ....................29 Settings Summary ......................30...
Page 5 M52 Microprocessor User's Guide Fan Overload Alarm ....................47 Heater Overheat Alarm....................47 Boiler Dirty Alarm ...................... 48 High Pressure Alarm ....................49 Low Pressure or Short Cycling Alarm ................ 50 Appendix A: Electrical Schematic Diagrams ....................... 51 M52UMCT Oct-03...
Page 6: Sequence Of Operation
Sequence of Operation The following is an outline of the operation of the unit. Not all units have all options. Unit powered Canatal Banner appears and controller beeps three times. Microprocessor initializes Co-Work and runs self check. Random start timer activates...
Page 7: Chilled Water
M52 Microprocessor User's Guide • N/C auxiliary contact on compressor contactor opens and de-energizes crankcase heater. • N/O auxiliary contact on compressor contactor starts remote condenser. (Air-cooled units only) • Low-pressure switch remains closed after Pos. start time expires and compressor remains on.
Page 8: Dual Cooling Units: Series 9 Only
M52 Microprocessor User's Guide The Dehum. Solenoid closes off refrigerant flow to part of the evaporator coil. This causes a lower coil temperature. The coil begins to remove more moisture as a result. The air is partially reheated, as the air through the inactive part of the evaporator is unconditioned.
Page 9: Reheat
M52 Microprocessor User's Guide (Temp 1) and the glycol loop temperature (temp 2) is greater than 5°C, (9°F). When the glycol temperature drops below 7.2°C (45°F) the compressors will stop automatically. The glycol temperature is monitored by the unit using Temp 2 input. Temp 1 and Temp 2 can be viewed in the Test Mode section on page three.
Page 10: Pid
M52 Microprocessor User's Guide The M52 microprocessor uses PID control logic to maintain the set point conditions. The following parameters are adjustable so the controller can be fine-tuned to specific site conditions. Dead band, temp. humid. dead band Cool prop. band Heating prop.
Page 11 M52 Microprocessor User's Guide To turn off an individual unit either as a stand-alone or in a Co-Work network see the Test Mode section or simply open the disconnect switch. M52UMCT Oct-03...
Page 12: Powering Up / Powering Down
M52 Microprocessor User's Guide Powering Up / Powering Down The first powering up must be performed by CANATAL authorized personnel only. Failure to do so may damage the unit and void the warranty. The main power switch (rotary disconnect) is located on the front of the unit. Series 6, 8 and 9 only.
Page 13: The Control Panel
M52 Microprocessor User's Guide The Control Panel The control panel is formed by a graphic LCD display and an overlay touch screen keypad. The layout of the screen consists of three distinctive regions - the Banner line, the Active tab display area and the Tab bar.
Page 14: Operating Status
M52 Microprocessor User's Guide Operating Status Main or return air Main or return temperature air humidity Network address Co-Work address icon Unit fan on/off Alarm icon icon On/Off mode icon Process status display Main Return Air Temperature & Humidity Readout The main temperature &...
Page 15: Unit Fan On/Off Icon
M52 Microprocessor User's Guide Unit fan On/Off Icon The unit fan on/off icons show up when the unit fan is running. This icon changes from continuously on to blinking when the unit is under fan purge shutdown. On/Off Mode Icon The On/Off mode icons keep you aware of the current On/Off mode selection.
Page 16: Co-Work™ Address Icon
M52 Microprocessor User's Guide Co-Work™ Address Icon This shows the Co-Work™ operation mode and network address. Duty Master Standby Master (e.g. Address 1) (e.g. Address 1) Every master unit in the Co-Work™ network must have a unique address which can be set through the DIL switches on the main board and I/O expansion board.
Page 17: Security
M52 Microprocessor User's Guide Security To prevent unauthorized interference with the system operation and settings, the M52 Microprocessors have three levels of security that can be assigned to different personnel having different responsibilities. Settings can only be altered after entering the four-digit password for the corresponding security level.
Page 18: Log-Out Security
M52 Microprocessor User's Guide Security level selector Password enter keys Log-out Security Exiting the security can be achieved by pressing the Log-out key in the log-out / change password screen. Cancel key Log-out key The system will also automatically re-lock security approximately 1 minutes after the last key is released.
Page 19 M52 Microprocessor User's Guide Password enter keys M52UMCT Oct-03...
Page 20: Alarms
M52 Microprocessor User's Guide Alarms Review Active Alarm Queue Active alarms and their date & time of occurrence can be reviewed under the alarm tab. The active alarms are displayed chronologically with the latest alarm at the top. Unit no.
Page 21: Acknowledging Alarm
M52 Microprocessor User's Guide Acknowledging Alarm In case of an alarm condition occurrence and provided the alarm is enabled and configured for audible warning, (See Alarm Configuration), a pop-up message will display on the screen like the following: Acknowledge alarm key You are requested to press the alarm activated “tick”...
Page 22: Alarm Configuration
M52 Microprocessor User's Guide Alarm message clear key PC board Co-Work Address Alarm Configuration The alarm configuration screen is under the active alarm queue screen inside the {Alarm} tab. You can switch to alarm configuration screen by pressing the [Change page] key in the alarm queue screen.
Page 23 : Disables the standby start feature on high temperature alarm in the event that the unit is connected to ductwork or a raised floor that cannot handle the increased air volume when all standby units are running in addition to the duty units. Contact Canatal when choosing the above options. M52UMCT Oct-03...
Page 24: Alarm Response Summary
M52 Microprocessor User's Guide Alarm Response Summary The following table summarizes the default configuration for all the alarms and their corresponding system action: Alarm Message Default Configuration Mandatory System Action Fan overload Immediate unit shutdown Low airflow Boiler dirty Humidifier shutdown...
Page 25: Historical Event Log
M52 Microprocessor User's Guide Historical Event Log For fault analysis, the system maintains the latest 50 historical events logged in the memory. The logs are ranked chronologically with the latest event at the top. Scroll bar Event type icon Event description Unit no.
Page 26: Timer On/Off Schedule
M52 Microprocessor User's Guide Timer On/Off Schedule Review Timer On/Off Schedule The weekly on/off program provides 4 changeover events per day and 7 days per week automatic on/off/relax control for the system. 7 days schedule 4 changeover events per day Each changeover event can be set to either “On”, “Off”...
Page 27: Programming The Timer On/Off Schedule
M52 Microprocessor User's Guide Programming the Timer On/Off Schedule If security access is granted, you can alter the Timer On/Off Schedule settings from the following screen: Set clock key Cursor Increment / Decrement value keys Cursor movement keys Set Clock You can press the set clock key on the Timer On/Off Schedule screen to adjust the date and time display.
Page 28: Temperature And Humidity Log Graph
M52 Microprocessor User's Guide Temperature and Humidity Log Graph The historical temperature and humidity variation can be reviewed under the Graph tab. The log graph stores the latest 24-hour main temperature and humidity data. Data are logged in 15 minutes interval.
Page 29: Settings
M52 Microprocessor User's Guide Settings System settings can be reviewed and altered in the {Setting} tab. Settings are divided into three groups. You can switch the display by pressing the [Change page] keys. Scroll bar Setting description Setting value Change page...
Page 30: Settings Summary
M52 Microprocessor User's Guide Settings Summary The following tables summarize the settings in each page: Page 1 : Configuration 1 Description Range Default Units Synchronization No. of duty unit Temp. setpoint 15-30 °C Temp. Hi limit 15-37 °C Temp. Low limit 10-30 °C...
Page 31: Settings Summary Glossary
M52 Microprocessor User's Guide Page 4 : Control Parameter Description Range Default Units Synchronization Temp. dead band 0-10 °C Relaxband Temp 0-20 °C Temp.2 Hi limit 15-37 °C Temp.2 Lo limit 0-30 °C Hum. dead band 0-30 Relaxband Humid 0-50 Hum.2 Hi limit...
Page 32 IR humidifiers. Sensor mode Enables or disables the units return air sensor from the averaging feature in a Co- Work network during standby periods. Also used for M52 Demo controllers or remote supervisory panels. Temp. display Sets temperature display on Status page to °F or °C...
Page 33 M52 Microprocessor User's Guide Temp. I-time Integral action time constant used in the PID control loop Humid. I-time Integral action time constant used in the PID control loop Humid. Control Choose to enable or disable humidity control. Setback Humid. Series 9 only, allows an alternate humidity setpoint to be selected and...
Page 34: Test Mode
M52 Microprocessor User's Guide Test Mode The {Testmode} tab contains an assortment of utilities designed to simplify field testing and troubleshooting. The utilities are divided into four pages: Microprocessor board diagnostic Digital I/O board diagnostic Sensor calibration Data re-initialization Microprocessor Board Diagnostic...
Page 35 M52 Microprocessor User's Guide In the Microprocessor board diagnostic page, each input or output on the Microprocessor board are represented by a symbol on the display. The representation of each graphic symbol is listed in the following diagram: Switched input / output opened...
Page 36: Digital I/O Board Diagnostic
M52 Microprocessor User's Guide Digital I/O Board Diagnostic The digital I/O board diagnostic page under the {Testmode} tab is as follows: Selected slave board Available slave boards Switched inputs State selector Selected I/O Description line Switched outputs Change page Under the digital I/O board diagnostic page, you can: Select any of the linked digital I/O board to review.
Page 37: Sensor Calibration
M52 Microprocessor User's Guide Card icon State selector Sensor Calibration The sensor calibration page under the {Testmode} tab is as follows: Temperature input readings Humidity input readings Load default value Set 0°C Supply voltage percentage Change page Under the sensor calibration page, you can: Review the current temperature inputs, adjust the 0°C reference and restore...
Page 38: Sensor Calibration Sequence
M52 Microprocessor User's Guide Sensor Calibration Sequence Temperature Power off unit and set the jumper on the temperature and humidity sensor board to “Zero” position. The pin 1 and 2 of the sensor board should read approximately 1000 ohms which corresponds to 0°C for the Hycal PT100 sensor.
Page 39 M52 Microprocessor User's Guide Under this page, you can: Set alarm configurations to default configurations (See Alarm Response Summary) Set timer on/off schedule to default configurations (See Timer On/Off Schedule). Set system configuration and control settings to default configurations (See Setting Summary) Clear log data in historical event log.
Page 40: Co-Work
M52 Microprocessor User's Guide Co-Work™ Co-Work™ is a six function networking feature that is built into every M52 controller. Through the use of a six wire telephone cable you can link up to 8 compressor circuits on one local area network. What this does is it makes all units in the network operate as one system which improves the system performance, reliability and manageability.
Page 41: Settings Menu, Sensor Mode
In the factory default setting, the M52 will ignore sensor data from a standby unit in the calculation to determine the average return air temperature and humidity in the controlled space. To include sensor data for standby units, open page 2 of the Settings section and review the Sensor mode entry.
Page 42 M52 Microprocessor User's Guide Only one operator can use the key pad at a time. Once you logon to the network that unit becomes the master. All other units will be locked and the keypads will display Master Lock if you attempt to use them.
Page 43: Fault Finding
M52 Microprocessor User's Guide Fault Finding In some cases, determining the cause of a fault requires a fair amount of technical knowledge and skill. The following fault finding charts are given as a guide for the service personnel to locate the common faults which may be encountered in the unit.
Page 44: High Humidity Alarm
M52 Microprocessor User's Guide High Humidity Alarm High humidity alarm Set "Humid. Hi Main humidity Wrong setting in Main Limit" 5-10%rh higher than "Humid. Hi Limit" humidity higher than "Humid. Hi Limit" too high ? "Humid. setting setpoint" Check opened...
Page 45: High Voltage Alarm
M52 Microprocessor User's Guide High Voltage Alarm High voltage alarm Supply voltage Wrong setting in Supply Set "Volt. Hi higher than the "Volt. Hi limit" voltage too limit" to 105- setting "Volt. Hi high ? 115% limit" Poor power condition...
Page 46: Low Airflow Alarm
M52 Microprocessor User's Guide Low Airflow Alarm Low airflow alarm Airflow differential pressure switch intervention Close all panels Open panles in air in the air compartment No air flow ? handling compartment Clear Blocked air path obstruction in air path...
Page 47: Fan Overload Alarm
M52 Microprocessor User's Guide Fan Overload Alarm Heater Overheat Alarm Heater overheat alarm Replace filter Safety overheat and re-calibrate Dirty air filter thermostat the filter intervention differential pressure switch Check possible Too low airflow obstructions in air path M52UMCT Oct-03...
Page 48: Boiler Dirty Alarm
M52 Microprocessor User's Guide Boiler Dirty Alarm Boiler dirty alarm Water forning at top of Check Electrode boiler Water the cylinder due to inoperative drain humidifier control level at top of the over concentration valve or blocked board intervention cylinder ?
Page 49: High Pressure Alarm
M52 Microprocessor User's Guide High Pressure Alarm High pressure alarm Compressor high pressure cutout switch intervention Wrong high pressure Re-calibration Too high cutout switch the high discharge calibration pressure cutout pressure ? switch Check Condenser fans not condenser Air cooled...
Page 50: Low Pressure Or Short Cycling Alarm
M52 Microprocessor User's Guide Low Pressure or Short Cycling Alarm Low pressure/short cycling alarm Wrong low pressure Compressor low Too low Re-calibration cutout switch pressure cutout suction the low pressure calibration switch intervention pressure ? cutout switch Too low condensing...
Page 51: Appendix A: Electrical Schematic Diagrams
M52 Microprocessor User's Guide Appendix A: Electrical Schematic Diagrams Drawing Title Drawing no. Page No. Electrical Schematic - IIC Interconnection Link M52ES13B Electrical Schematic – RS485 Serial Communication Link M52ES02E M52UMCT Oct-03...
Page 52 M52 Microprocessor User's Guide 1 2 3 M52UMCT Oct-03...
Page 53 M52 Microprocessor User's Guide M52UMCT Oct-03...