A G-TRAC MANUAL
Page 8 Revised: 03/17/99
• Place a 1005-ohm resistor across G-TRAC terminals "X and Z" to simulate 70°F (21°C).
• Connect the TE 6100-960 set-point to the G-TRAC terminals as follows:
1. BLUE to G-TRAC terminal Z
2. ORANGE to G-TRAC terminal Y
3. GREY to G-TRAC terminal V
• Turn the TE 6100-960 dial to 70°.
• Adjust pot 3 until the heat light just shuts off
Method 3
• Disconnect jumper from “RR and +”.
• Set the discharge air calibration using a 1005-ohm resistor (to simulate 70°F) in place of the discharge
sensor. Adjust set point just short of where the heat call light comes on.
• Accurately measure the room temperature next to the room sensor.
• Set the room set point to the same temperature as was measured.
• Ensure the jumper is re-installed "RR" to "+".
• Adjust pot 3 until the heat call light is just short of coming on.
Method 4 (May correct minor electrical noise on remote wire)
• Disconnect wires to terminals “Z and X” and measure the resistance on them. Reconnect the wires.
• Compare the reading with the TE 6000 resistance chart in this document.
• Adjust the room reset set-point dial to the same value as related to the chart. (Also ensure “RR and +”
are jumpered.)
• Adjust pot 3 until the Heat Call light just comes on.
X. BMS RESET OF THE DISCHARGE AIR TEMPERATURE
The G-TRAC has the ability to accept an input from a BMS 0-10 VDC or 4-20 ma signal on the G-TRAC
terminals "+ and -". This is not optically isolated. Pot "P7" sets the amount of override that the BMS signal will
be allowed when the BMS signal is at its highest. Setting 1 is about ±32ºF and setting 5 is about ±60ºF. The
amount of reset authority may be slightly higher when using a 0 to 10 VDC reset signal from the BMS. (Setting
1 = ±40ºF; setting 5 = ±75ºF).
Pot 7 Setting Reset Value With 0-10 VDC Signal 4-20 ma Signal
5 + 75°F + 60°F
4 + 68°F + 54°F
3 + 60°F + 48°F
2 + 50°F + 40°F
1 + 40°F + 32°F
Reset from the BMS signal will not be truly lineal. It will start to reset about 3 VDC. The reset will begin to ramp
gently at 3 volts and ramp more steeply as the reset voltage is increased.
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