Install Instructions
INSTALLATION
Commissioning
ENGLISH
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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.
1
2
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f Install the jumper in the required position on the “P
max
” pin
strip.
Jumper position Power output
DHC-E 3/3.5-1 Trend DHC-E 4/6-2 Trend
1 [low] @ 120V 3.0kW -
@ 208V - 2.9kW
@ 240V - 3.8kW
2 [high] @ 120V 3.5kW -
factory default
@ 208V - 4.5kW
@ 240V - 6.0kW
No jumper @ 120V 3.0kW -
[low]
@ 208V - 2.9kW
@ 240V - 3.8kW
Jumper position Power output
DHC-E 8/10-2 Trend DHC-E 12/15-2 Trend
& Plus
1 [low] @ 208V 5.4kW 9.0kW
@ 240V 7.2kW 12.0kW
2 [high] @ 208V 7.2kW 10.8kW
factory default
@ 240V 9.6kW 14.4kW
No jumper @ 208V 5.4kW 9.0kW
[low] @ 240V 7.2kW 12.0kW
f Mark the selected power output on the type plate. Use a ball-
point pen to do this.
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.
PLQ
1
2
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f 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.
f Ensure there are no water leaks from any plumbing
connections.
12.3.1 Initial AE3 safety switch activation
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f 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).
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f 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.