Use; Starting And Testing; Temperature Setting; Maintenance - Bosch Tronic 3000T Installation Manual And Operating Instructions

4

Use

4.1

Starting and testing

NOTICE:
DO NOT supply power to water heater until filled with water. If
the water heater is powered on prior to being filled with water,
it could lead to dry-fire damage. This is not covered under
warranty.
To fill the heater:
▶ Open supply valve for water heater to fill with water.
▶ Open hot water tap(s) supplied by the water heater to
purge air out of the system. Once air is purged, close hot
water tap.
▶ Visually check for any leaks.
Turning heater on
For models which are not fitted with a switch:
▶ Supply power to the water heater by plugging in the power
cord (models ES2.5, ES4) or turning on the circuit breaker
(model ES8). If the light does not come on, turn the control
knob in a clockwise direction.
The light will come on until water temperature has reached
the thermostat temperature setting. The light will come
back on any time the water temperature inside the tank
drops below the thermostat setting.
4.2

Temperature setting

The temperature of the hot water is adjusted by rotating the
knob M located on the front cover. Temperature range is 65 -
145 °F.
▶ Turn the knob clockwise to increase temperature.
Tronic 3000T – 6 720 801 072 (2022/07)
▶ Turn the knob counter-clockwise to decrease temperature.
V
Fig. 9
5

Maintenance

CAUTION:
Do not attempt to repair this water heater yourself. Call a
service person for assistance. Always turn off the power supply
to the heater prior to servicing or draining the heater.
Required maintenance
For all of the following operations, the power must be removed
from the water heater (ES2.5 and ES4; Unplug from the wall
power outlet. ES8; Turn off the circuit breaker at the mains
panel). For some of the following operations the water must be
drained from the water heater too.
5.1

Removing the cover

▶ Pry off the round cover plate [V] from its right hand edge
[W] with a small flat-head screwdriver.
▶ Remove the Phillips screw revealed beneath the round
cover plate.
▶ The cover [C] can now be removed by pulling out its left-
hand edge. When reassembling, work in the opposite way
being careful to insert the tongue of the cover into the slot.
5.2

Draining the heater

If the heater has been installed with flexible hoses:
▶ Shut off the power supply.
C
M
W
MAX
6720801072-08.1V
11
Use