ETC101 (Top Performer Control)
Installation Manual
Installation
WARNING: Do Not Use With 110V circuits. For Switching 110V, use a standard TPI Control.
ETC101 Insulation Tank
Screw A
Attaching ETC101 to Top Performer tank:
Place ETC101 so that temperature sensor lead goes through the hole in back.
ETC101 should fit flush against the tank jacket.
Use self-tapping screw provided (Screw A) to attach ETC101 directly to the
Top Performer.
Attaching ETC101 to tanks with immersion wells:
Place hole in back of ETC101 over immersion well. (See Diagram 1)
If ETC101 can fit flush against the tank without the immersion well protruding
beyond the top of the ETC101 case, the ETC101 can be mounted as described
above. Otherwise, the ETC101 can be mounted directly onto the immersion
well itself.
Place square nut in the retaining well on the ETC101 box.
Use proper machine screw provided (Screw B or Screw C) to tighten against the immersion well.
Inserting the Temperature Sensor:
Connect the probe to the ETC101 by inserting the leads in the black opennings on top of the probe connector
while pushing both white buttons with finger nail or a tool (such as a screwdriver). This can also be done one
side at a time. Release the white buttons and pull on each probe lead to check connection. See Diagram 5.
For tanks with integral probe, the sensor installation is complete.
For tanks with an immersion well, slide temperature sensor all the way into the immersion well – until it
contacts the end. (See Diagram 1)
The sensor will measure temperature adequately by resting against the bottom of the immersion well.
(Note: Sensor does NOT need to make intimate contact with entire well surface to work properly)
Wiring the ETC101:
ETC101 is rated 24VAC, 1 Amp Resistive.
WARNING: Do Not Use With 110V circuits. For Switching 110V, use a standard TPI Control.
Run all 24VAC wiring thru the square notch on bottom of ETC101 case. (See Diagram 3)
Connect thermostat wiring to the TT connectors on the bottom left corner of the ETC101. (See Diagram 3)
For controlling zone valves, multi-zone controllers and switching relays, follow applicable wiring diagrams for
low voltage thermostat circuits. (See Diagram 2)
For Newer Switching Relays: Some models don’t work with “Power Stealing” thermostats. The ETC101
is a power stealing thermostat (using only the TT terminals) unless powered separately (using the 24V
terminals). Connect 24VAC Power (From the the switching relay board (See manual for that product for
details) or from a step down transformer to the screws to the right of the Probe Connector.
