Engineered air EngA G-TRAC2 - Page 5

Engineered air EngA G-TRAC2

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A G-TRAC2

IOM-25 5 of 42 Mar 99 R7

Table of Contents

Default Chapter2
- Table of Contents2
Application6
Service6
Reset Discharge Air Temperature6
General Description6
- Operation6
- Basic Features7
Wiring7
System Timings8
Blower Air and Gas Modulation8
Dip Switches8
- Dip Switch Blocka8
- Dip Switch Block B - Fuel Curves/Air Curves9
  - Gas Curves9
  - Air Curves9
- Dipswitch Block "C" - Low Limit, PI, CTRAC, 010 VDC Control9
Pots10
Status Lights10
- LED 1 Burner Pre-Purge10
- Led 2 Heat Required11
- Led 4 Burner11
Auto Bypass Low Limit12
Day and Night Operating Strategies12
- Supply Fan, Damper and Heat Operation12
Basic Burner Operation14
- The Basic Burner-Operating Scheme Is as Follows14
- Heat Required Led on16
- Pre-Purge Light16
Room Reset Thermostat Options17
- Modulating Room Reset (Continuous Blower Operation Only)18
- Calculated Discharge Table for Room and Ambient Reset21
- Multiple Room Sensors22
- BMS Reset (Continuous Blower Only)22
- Bms Reset from Voltage Applied to + and23
- Bms Calibration23
- Ambient Reset (Day Mode Only - Requires Dipswitch A-2 to be On)23
- Make/Break Resets and Overrides24
Temperature Control - General Overview17
The Master Set-Point17
Induced Voltage on Remote Control Wiring17
Night Heat Thermostats17
- Direct Control 0 - 10 VDC27
- VDC Control28
Calculated Set-Point Readout (Base Plus Calculated)28
Discharge Temperature Readout29
Discharge Sensor Readouts, Calibration, Etc29
- TE6100 Resistance's29
- TE6000 Discharge Sensor Self-Test30
- Sensor Resistance Chart for te 6100-960 and te 6000-96030
- Discharge Sensor Calibration30
- Discharge Set-Point Calibration30
  - Johnson Set-Point31
  - Built in Set-Point31
- Room Sensor Calibration31
- BMS Calibration and Set up31
G-Trac2 Set up Sheet32
Burner Set up33
- Operator Control Rules33
- Manual Service Mode33
- Combustion Set up34
- Inlet/Manifold Pressure Settings37
Special Service Notes37
- On Board Fuse37
- Low Limit Lockouts37
- Failed Operation or Solid State Control Contacts by Others37
- Air Balancing (Refer to Next Item)38
- Cold Discharge Temperature in Cold Weather38
- Ignition Problems38
- Regulator Gas Pressure Responses39
- Pilot Sensing Problems39
- Smell from Flue (Products of Combustion)39
- Water and Ice from Combustion39
- Burner Pulsing, Backfiring, Exploding, Noisy40
- Fire Without Combustion Fan40
- Heat Locked on - G-TRAC2 Slave to C-TRAC40

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