A.O. Smith Theta T 20 10, Installation, User And Service Manual

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Installation-, User- and Service Manual
88
7.2.2
7.3 Decommissioning
for a long period
7.3.1
Theta dual service system
The Theta dual service system can be decommissioned for a short period of time via
HEATING CONFIG.. It is advised to decommission the Theta dual service system for a
short period of time for service.
To decommission the Theta dual service module for a short period of time via HEATING
SETTINGS the following steps must be made
1. Press once to reach the service program. The display, as shown in the figure,
will appear.
2. Press once on the blue arrow (

) to position the cursor beside HEATING CONFIG.
and press ENTER. The display, as shown in the figure, will appear.
3. Confirm the selection HEATING CONNECTED with ENTER. The display, as shown
in the figure, will appear.
4. Press on the blue arrow (

) to position the cursor beside NO and press ENTER. By
pressing enter the dual service functionality has been turned off. It is now possible to
turn off the system.
Important
By turning of the Theta dual service module this way you also turn off the heating
system. Any heat demand from the room thermostat can not be answered. The DHW-
system continues to operate. The pump protection also remains active.
The system consists out of two parts:
1. DHW-system;
2. Theta dual service system.
DHW-system
To decommission the DHW-system for a longer period it is recommend to drain the
system. For draining the DHW-system, see Installation-, User- and Service manual
(6 "Draining") of the water heater.