Thermostat TOA
Doc: 70-00-0851A V1.0, 20210716
© Vector Controls GmbH, Switzerland
Page 6 / 10
Subject to change without notice
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Connecting the TOA and putting it into operation
Important
The electrical connection of the TOA must be made in accordance to the local regulations.
1.
Loosen the locking screw with a Phillips or slotted screwdriver and remove the upper part of the housing. To do
this, press in the upper part of the housing on the side next to the locking screw slightly so that the locking hook
disengages (see picture below).
2.
Connect the device according to the connection diagram. To do this, push the cable through the supplied cable
strain relief (kink protection) and connect it to the terminals. Tighten the terminal screws with max. 0.4 Nm.
Position the cable strain relief in the housing cut-out and attach cable ties for strain relief (see picture below).
Note: Open the screw terminal completely to connect the cable correctly.
3.
Only for TOA-T101: Position the jumper J1 according to the operating voltage of the power supply used (see
picture below).
4.
Close unused housing cable cut out with the supplied blind insert (see picture below).
5.
Apply operating voltage to TOA and observe signal LED (see section "Signal LED", page 7). The signal LED should
light up green after the device startup and the contact is opened.
6.
Verify the function of the TOA. To do this, disconnect the temperature sensor connected to terminal P4 while the
device is running. The signal LED flashes red and the contact opens. After successful function test, reconnect
cable. Signal LED lights up green and contact closes.
7.
Set temperature limit if required (see section "TOA Parameters", page 8) or copy prepared TOA parameters with
memory device into the TOA (see section "Copy TOA parameters", page 9). Preset are limits of 35°C / 30°C
(95 °F / 86 °F).
8.
Close the housing. Make sure that the two hooks of the upper part of the housing engage correctly in the lower
part of the housing and that the hook on the other side engages correctly. Tighten the locking screw (max. 0.5
Nm).
Open TOA housing
Cable connection with cable lock (example with TOA-T101 and 230 VAC power supply)
Jumper J1 (TOA-T101 only)
Completely loosen the locking screw
and press here to open the housing.
24 V
230 V
Power
J1
Place jumper according to the used operating voltage.
