Water Heater Handover; Operation With Preheated Water; Recommissioning; Water Heater Shutdown - Stiebel Eltron DHC 3/3.5-1 Trend Manual Del Usuario

INSTALLATION

Water heater shutdown

Ensure there are no water leaks from any plumbing
connections.
11.3.1 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).
Hook the water heater cover into the water heater back panel
at the top rear. Pivot the cover downwards. Check that the cover
is securely seated at both top and bottom.
Secure the cover with the screw.
Remove the protective film from the front panel.
Switch on the power supply.

11.3.2 Water heater handover

Explain the water heater functions to users, and familiarize
them with how it works.
Make the user aware of potential dangers, especially the risk of
scalding.
Hand over the instructions.

11.4 Operation with preheated water

The maximum inlet temperature may be limited by installing a
central thermostatic valve. Use the thermostatic valve for central
premixing, for example when operating a tankless water heater
with preheated water.
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11.5 Recommissioning

Material losses
!
To ensure that the direct coil heating system is not damaged
following an interruption to the water supply, the water
heater must be restarted by taking the following steps:
Disconnect the water heater from the power supply by
turning the connected circuit breaker.
Open and close all connected draw-off valves at least 5
times, for at least 3 minutes total, until all air has been
purged from the pipework and the water heater.
Switch the power back ON.
12. Water heater shutdown
Shut off power to the unit at the breaker panel by making sure
that connected circuit breakers are "OFF" to avoid any danger
of electric shock.
Drain the water heater (See section 14.1, "Draining the water
heater," pg. 14").

13. Service information

Connection overview/component overview
1
2
1 Flow sensor
2 High limit safety cut-out, automatic reset, Klixon
3 Pin strips for power output and temperature selection
4 Diagnostic lights
3
4
DHC Trend | 13