Changing Power Output Via Jumper Slot; Initial Start-Up - Stiebel Eltron DHC-E 3/3.5-1 Trend Utilisation Et Installation

INSTALLATION
Commissioning

12.2 Changing power output via jumper slot

DHC-E models feature selectable power output.
If you select a value other than the factory default setting, you will
need to reposition the jumper.
Install the jumper in the required position on the "P
strip.
Jumper position Power output
DHC-E 3/3.5-1 Trend DHC-E 4/6-2 Trend
1 [low] 120 3.0
@ V kW
208 -
@ V
240 -
@ V
2 [high] 120 3.5
@ V kW
factory default 208 -
@ V
240 -
@ V
No jumper 120 3.0
@ V kW
[low] 208 -
@ V
240 -
@ V
Jumper position Power output
DHC-E 8/10-2 Trend DHC-E 12/15-2 Trend
1 [low] 208 5.4
@ V kW
240 7.2
@ V kW
2 [high] 208 7.2
@ V kW
factory default 240 9.6
@ V kW
No jumper 208 5.4
@ V kW
[low] 240 7.2
@ V kW
Mark the selected power output on the type plate. Use a ball-
point pen to do this.
www.stiebel-eltron-usa.com
1
2
" pin
max
-
2.9
kW
3.8
kW
-
4.5
kW
6.0
kW
-
2.9
kW
3.8
kW
& Plus
9.0
kW
12.0
kW
10.8
kW
14.4
kW
9.0
kW
12.0
kW

12.3 Initial start-up

Note
During initial start-up, you MUST engage the AE3 safety
switch by depressing the white reset button before supply-
ing power to the water heater. The unit will NOT operate
until the safety switch has been engaged.
1
Open and close all connected draw-off valves at least five times
total. Let water run for at least three minutes, until all air has
been purged from the pipework and the water heater.
Ensure there are no water leaks from any plumbing
connections.
12.3.1 Initial AE3 safety switch activation
Engage the AE3 safety switch by firmly pressing the white reset
button until it clicks and fully locks in place (the water heater is
delivered with the safety switch disengaged).
Connect the programming unit connecting cable plug to the
PCB.
Note
It is essential to plug the connecting cable from the pro-
gramming unit into the PCB before switching on the power.
Otherwise, the programming unit will not function.
2
DHC-E Trend & DHC-E Plus | 19