1. Manuals
  2. Brands
  3. Engineered air Manuals
  4. Controller
  5. EngA M-TRAC1
  6. User's operation manual

Engineered air EngA M-TRAC1 User's Operation Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

DIRECT FIRED HEATING CONTROLLER
CANADIAN
HEAD OFFICE
AND FACTORY
1401 HASTINGS CRES. SE
CALGARY, ALBERTA
T2G 4C8
Ph: (403) 287-2590
Fax: 888-364-2727
SALES OFFICES ACROSS CANADA AND USA
Retain instructions with unit and maintain in a legible condition.
IOM-55
A
USER OPERATION
MANUAL
M-TRAC1
UNIT MODEL NO. _________________
UNIT SERIAL NO. _________________
SERVICED BY: ___________________
TEL. NO: ________________________
HEAD OFFICE
AND FACTORY
32050 W. 83
DESOTO, KANSAS
Ph: (913) 583-3181
Fax: (913) 583-1406
Please give model number and serial number when contacting
factory for information and/or parts.
www.engineeredair.com
FOR
USA
rd
STREET
66018
CANADIAN
EASTERN FACTORY
1175 TWINNEY DRIVE
NEWMARKET, ONTARIO
L3Y 5V7
Ph: (905) 898-1114
Fax: (905) 898-7244
May 2019

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the EngA M-TRAC1 and is the answer not in the manual?

Questions and answers

Related Manuals for Engineered air EngA M-TRAC1

Summary of Contents for Engineered air EngA M-TRAC1

  • Page 1 USER OPERATION MANUAL M-TRAC1 DIRECT FIRED HEATING CONTROLLER UNIT MODEL NO. _________________ UNIT SERIAL NO. _________________ SERVICED BY: ___________________ TEL. NO: ________________________ CANADIAN CANADIAN HEAD OFFICE HEAD OFFICE EASTERN FACTORY AND FACTORY AND FACTORY 1401 HASTINGS CRES. SE 32050 W. 83 STREET 1175 TWINNEY DRIVE CALGARY, ALBERTA...
  • Page 2 M-TRAC1 M-TRAC1 The M-TRAC1 has been certified by Intertek (ETL) for use with Engineered Air appliances only. It has been evaluated to CSA C22.2 No. 24 Temperature-Indicating and Regulating Equipment and UL 873 UL Standard for Safety Temperature-Indicating and Regulating Equipment. This is a User Operation Manual and therefore not subject to evaluation.
  • Page 3 M-TRAC1 IOM-55 May 2019...

  • Page 4: Table Of Contents

    M-TRAC1 TABLE OF CONTENTS INTRODUCTION ..........................5 CONTROLLER RATINGS ........................5 CONTROLLER DESCRIPTION ......................6 TERMINALS ......................... 6 DIP SWITCHES ......................7 INDICATION AND DIAGNOSTIC LIGHTS ..............7 ADJUSTMENT POTS ....................8 MULTIMETER TEST POINTS ......................8 MAXIMUM DISCHARGE SET POINT LIMIT SETUP (SP LMT)........8 CALCULATED SETPOINT (SPC) ................

  • Page 5: Introduction

    INTRODUCTION The M-TRAC1 is a discharge air temperature controller of large (BTUH) single volume direct- fired Engineered Air equipment, using 120 Vac safety shut off valves, and operating a modulating ball valve actuator. The information used in this manual should be used in conjunction with the unit function sheet(s) and the HE series Installation, Operation, and Maintenance manual.

  • Page 6: Controller Description

    M-TRAC1 CONTROLLER DESCRIPTION TERMINALS TABLE 1 Terminal Description 0-10 Vdc output to ball valve actuator Input terminal for single discharge sensor Input terminal for two discharge sensors wired in series Sensor common Output from the built in set point POT. Positive supply for a remote set point POT.

  • Page 7: Dip Switches

    M-TRAC1 DIP SWITCHES The M-TRAC1 options are configured by DIP switch selection and/or wiring connections. DIP switch settings are noted on the internal wiring diagram, and should not be altered. TABLE 2 DIP SW Description Disable Auto Heat Switch. If enabled the M-TRAC1 will monitor the discharge air temperature and disable the heat if the temperature is constantly greater than the Setpoint (>...

  • Page 8: Adjustment Pots

    M-TRAC1 ADJUSTMENT POTS There are a number of setting and calibration potentiometers (POT’s) located on the face of the M-TRAC1. Modifications to these should only be performed by experienced and qualified personnel. TABLE 4 Description SP LMT Limits the maximum discharge temperature set point. CAL DTEMP Discharge air sensor temperature calibration.

  • Page 9: Discharge Temperature (Dtemp)

    M-TRAC1 DISCHARGE TEMPERATURE (DTEMP) The DTEMP measurement point is located on the top left corner of the M-TRAC. The voltage reading relates to the actual temperature of the discharge sensor. Table 5 Voltage (Vdc) ˚C ˚F NOTE: Sensor accuracy is diminished at temperatures greater than those noted in this table. PROFILE PLATE VELOCITY The profile plate has been factory set for the airflow shown in the submittal record.

  • Page 10: Control

    M-TRAC1 (reason for the lockout) will be lost. When power is resumed the M-TRAC1 will remain locked out, but only green LED flashing irregularly. CONTROL SYSTEM TIMING Damper opening delay: Depends on type of damper actuator used. Blower startup: 54 seconds after terminal FS is energized. Low Limit bypass: 4.5 minutes from initial startup, 50 seconds nuisance timer.

  • Page 11: Damper Control

    M-TRAC1 DAMPER CONTROL The inlet damper actuator(s) is enabled through output terminal DM. The M-TRAC1 allows time for the dampers to open prior to starting the supply blower. BLOWER CONTROL The M-TRAC1 uses output terminal SA to control the supply air fan. There are, however, a number of internal and/or external components that may be required to be functional prior to starting the blower.

  • Page 12: Profile Plate Velocity Sensing System

    M-TRAC1 PROFILE PLATE VELOCITY SENSING SYSTEM The M-TRAC1 has a built in profile pressure sensor to prove and monitor air flow across the burner. This allows the burner to operate safely and efficiently by proving the airflow is within proper air velocity limits. The profile pressure sensor has three non-adjustable air settings: 40, 60 and 120% of normal airflow.

  • Page 13: Operation

    M-TRAC1 OPERATION EXHAUST FAN INTERLOCKING There are a number of different exhaust interlocking options available. Always refer to the wiring diagram and unit function sheet to determine the exact type of interlocking used. The AL output contact may be switched from an alarm output to a exhaust fan enable output contact for control of reverse interlock control systems (DIP sw #2).

  • Page 14: Setpoint (Spc)

    M-TRAC1 SETPOINT (SPC) Check the wiring diagram to determine if the M-TRAC1 is using the face mounted setpoint dial or an optional remote mounted setpoint dial. The most commonly used remote control panel includes fan and heat on/off switches and a setpoint dial. A jumper will be installed across terminals S and SP if the M-TRAC1 is using its built in setpoint dial.

  • Page 15: Profile Velocity

    M-TRAC1 PROFILE VELOCITY Profile velocity test point readings outside the 4.0 -7.0 Vdc range generally indicate improper airflow through the heater, not a problem with the M-TRAC1. Before attempting to adjust the profile velocity ensure the heater is operating at the required nameplate air volume. The Profile Velocity POT is typically set to the ‘12’...

  • Page 16: Input Contacts By Others

    M-TRAC1 to malfunction due to reverse leakage current when ‘open’. BMS SENSOR LOCATION The Engineered Air sensor must be calibrated to match its operation with the Engineered Air control. Do not calibrate it to match BMS readout if one exists.

  • Page 17: M-Trac1 Lock Out Description

    M-TRAC1 M-TRAC1 LOCK OUT DESCRIPTION Table 8 LED Code Reasons Faulty flame relay or wiring error. Ignition control and safety shut off valve should be off (FR and CFR contact ‘open’, but receiving power to VFB120 B Irregular indicating valve is still on. Faulty flame relay or wiring error.

  • Page 18: Fan Operation Flowchart

    M-TRAC1 FAN OPERATION FLOWCHART - Main supply power ‘ON’. - Service switch ‘ON’. - Fire alarm contact ‘CLOSED’. - Any additional contacts to terminal H ‘CLOSED’. - 24Vac across terminals H and N. Replace fuse. Light C blinks Check M-TRAC fuse. several times Fuse okay? very fast.

  • Page 19: Heat Operation Flowchart

    M-TRAC1 HEAT OPERATION FLOWCHART - Close heat switch and/or any other contacts or interlocks to power terminal HS (24Vac). - If system is reverse interlock the AL output will have closed when the supply fan successfully started, and enabled the exhaust fan. - Light D slow blink should now be Off.

Table of Contents

Save PDF