Lister SB 112 H Instruction Manual page 14

3. Fix the heating cable now
on the basin bottom, start laying the
heating cable at position 2 in the direction
of the arrow, then press the heating cable
along the groove and into the cable
holder. Run the cable in position 3 on the
right past the screw cap.
4. Fix the metal (thermostat holder) on the tank
base with the two
screws 3.5 x 9.5 and the flat washers. Remove
excess heating cable from underneath the
sheet by pulling gently on the heating cable
through the grommet of the sheet. Tighten the
cable binders in step 1 (item 1) to fix the heating
cable.