Varifan MSC-10 User Manual Download Page 17 | Manualshive

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MSC-10

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Main Board Layout and Connections

Chapter 2 - Installation

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Summary of Contents for MSC-10

Page 1: ...MSC 10 Page 1 Varifan MSC 10 User s Guide www monitrol com ...

Page 2: ...s equipment For added security against line voltage surges it is recommended that surge and noise suppression devices be installed at the electrical distribution panel Use of shielded cable for probes is recommended for protection against lightning These devices are available from most electrical supply distributors RECOMMENDATIONS The manufacturer recommends that all installation procedures descr...

Page 3: ...ption 18 Operating Instructions 20 Downloading a New Configuration 20 LIST OF ABBREVIATIONS 21 SPECIFICATIONS 22 LIMITED WARRANTY 23 Table of Contents List of Figures Figure 2 1 Safety Control Backup Wiring 2 Sheets 9 10 Figure 2 2 Typical Sensor Probe Wiring 11 Figure 2 3 Enclosure Mounting Hole Locations 15 Figure 2 4 Installation Set up 16 Figure 2 5 Main Board Layout and Connections 17 Figure ...

Page 4: ...MSC 10 Page 4 www monitrol com ...

Page 5: ...0 A CM3 2 Control Module 2 on off stages 4 Amp each 5 mA 4 A CIM 1 Curtain Air Inlet and 2 speed motor modules 5 mA 4 A CIP 1 Curtain and Air Inlet Positioner 5 mA 3A ARM 1 Alarm Relay Module 8 second delay NOTE The MSC 10 provides control for 10 outputs but only six of the outputs can be variable The VSM 2 uses two variable outputs while the CIP 1 uses only one variable output 3 The MSC 10 can al...

Page 6: ...lude the following systems Multistage ventilation heating sprinkler systems Combined natural and forced ventilation systems Room ventilation systems 7 The MSC 10 can be integrated in a fully automated system using its built in program with 3 categories of control modules Control Module Actuator Module and Variable Speed Module 8 Control Module The control module operates in an ON OFF switching mod...

Page 7: ... according to local wiring code Each control module must be connected to the master control unit using two wire low voltage cable It is recommended to use shielded wire cable to interconnect the different modules to the MSC 10 The shielded wire cable is very efficient to protect the MSC 10 against any electromagnetic interference generated by a thunderstorm or other operating machinery This princi...

Page 8: ... should be selected to ensure it is capable of supporting the power load required b Backup Thermostat It is also strongly recommended to put a thermostat to at least one fan in parallel to the MSC module output If the Multistage Computer fails the backup thermostat will activate the dedicated fan at full speed when the temperature will reach the set point of the thermostat The thermostat should be...

Page 9: ...RIBUTION PANEL L2 L1 GND LINE 230 VAC source 1 DISTRIBUTION PANEL L2 L1 GND N LINE 230 VAC source 2 Chapter 2 Installation Figure 2 1 Sheet 1 of 2 Safety Control Backup Wiring MSC POWER INPUT SAFE WIRING WITH SECOND POWER SOURCE If the 115 VAC line is used then replace L2 by the Neutral Line as shown on the diagram 1 1 www monitrol com ...

Page 10: ...10 Page 10 MST 1 T15 WD L2 L1 MSC OUTPUT OR Figure 2 1 Sheet 2 of 2 Safety Control Backup Wiring BACK UP THERMOSTAT The MST 1 provides an Alarm Relay in addition 1 1 Chapter 2 Installation www monitrol com ...

Page 11: ...OUND SHIELD POWER GROUND WIRE CONNECTOR PROBE Figure 2 2 Typical Sensor Probe Wiring Chapter 2 Installation TYPICAL SINGLE PROBE It is recommended to solder the junctions of the probes TYPICAL 4 PROBES WIRING www monitrol com ...

Page 12: ...g on the cooling system 2 If a temperature sensor or its wiring become an open circuit the MSC 10 will interpret this as a very low temperature LO displayed and will try to increase the temperature by turning on the heating system 10 Optional Inside Temperature Sensor Setup An optional setup involves the use of four temperature probes wired in a series parallel circuit see Figure 2 2 which provide...

Page 13: ...ve the screws see Figure 2 4 1 securing the front panel 2 and the screws securing the lower access plate Install the MSC 10 computer on a wall or suitable area and secure it with attaching hardware and perform the following a Ensure the ribbon cable 3 is properly connected b Connect the cable wiring of each control module and sensor probe to the terminal blocks see Figure 2 5 of the MSC 10 The wir...

Page 14: ... align the cutout label by moving it through the access hole 8 f Install the CONTROL VALUES label 5 and the OUTPUTS label 4 into their appropriate slot of the front panel g Before proceeding to the configuration setup of your installation review the User Guide in Chapter 3 for the control descriptions of the MSC 10 computer Chapter 2 Installation www monitrol com ...

Page 15: ...MSC 10 Page 15 REAR VIEW TOP MOUNTING HOLE BOTTOM MOUNTING HOLE BOTTOM MOUNTING HOLE Figure 2 3 Enclosure Mounting Hole Locations Chapter 2 Installation www monitrol com ...

Page 16: ...Chapter 2 Installation Figure 2 4 Installation Set up A DETAIL A 1 2 4 6 5 7 8 1 SCREWS 4 2 FRONT PANEL 3 RIBBON CABLE 4 OUTPUTS LABEL 5 CONTROL VALUES LABEL 6 CUTOUT LABEL 7 INPUT SLOT 8 ACCESS HOLE www monitrol com ...

Page 17: ...ure 2 5 Main Board Layout and Connections Chapter 2 Installation J1 Q7 K5 Q6 MAIN BOARD C3 C5 CONFIG MODULE COMPUTER REMOTE OUTPUT OUT3 OUT4 LINE 115 230 V OUT1 OUT2 OUT5 OUT6 PROBES T1 LINE VOLTAGE SW1 www monitrol com ...

Page 18: ...keep the configuration module in a safe location e Configuration module 11 contains the logic program information on the type of sensors used temperature unit of Celsius or Fahrenheit control value descriptions and the configuration of your setup i e a control program of what to activate and when differentials interlocks etc f Temperature sensor 10 is used to send temperature signals to the MSC 10...

Page 19: ...ents 1 ACCESS PLATE 2 SCREW 2 3 DIGITAL DISPLAY 4 FRONT PANEL 5 OUTPUTS LABEL 6 SCREW 4 7 HEAT SINK 2 8 ADJUST KNOB 9 CONFIG MODULE STORAGE LOCATION 10 TEMPERATURE 11 CONFIGURATION MODULE 12 CONTROL VALUES LABEL 13 DOWN ARROW BUTTON 14 UP ARROW BUTTON www monitrol com ...

Page 20: ...hich are relative to the DRT For example to set a heating stage so that it begins to operate within the inside room temperature at five degrees below the Desired Room Temperature select the HEATER STAGE ON parameter with the UP or DOWN arrow button and then rotate the ADJUST knob until a reading of 5 0 is shown in the digital display on the front panel NOTE The text in italics indicate the reading...

Page 21: ...e If display is still not responding remove and replace the config module ensure the polarity is correct e When the download procedure is successful remove the config module and place it in its storage location 8 NOTE If the config module is not removed after the download procedure the control values will return to a reset status every time a power failure occurs and when the power source is react...

Page 22: ...ER 12 W max 115 230 20 10 VAC 50 60 Hz NOT FUSED STAGES 1 and 2 variable fused 10 AMP 115V 230V AC only Min Rating 150mA AC only STAGES 3 TO 6 ON OFF not fused 10 AMP 115V 230V AC DC Min Rating 50mA AC DC ALARM dry relay contact 30V DC 1 AMP www monitrol com ...

Page 23: ...ail lightning or any other natural disaster Any unauthorized work modification or repair on this product automatically voids the warranty and disclaims the manufacturer from all responsibility The manufacturer assumes only those obligations set forth herein excluding all other warranties or obligations This warranty stipulates that in all cases the manufacturer shall be liable only for the supply ...

Page 24: ...MSC 10 Page 24 MAVMSC 10 Ver 1 01 July 95 Rev June 2001 Main board www monitrol com ...

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