Honeywell ZG 215VN Operation And Putting Into Service page 17

Manual mode (fig. on the left)
In case of the breakdown of the heating mode regulation, you can
proceed temporarily as follows:
n
1. Set the operating mode selector
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2. Open the mixing valve by hand until the desired flow and
room temperatures are reached.
– The coupling incorporated in the mixing valve drive unit
provides for the release of the connection between the
motor and the mixing valve.
– Press firmly on the unlock key on the cover of the drive
unit and keep the key pressed (firmly!).
– Use the setting lever to set the mixing valve in the
desired position.
After eliminating the problem, the mixing valve is set
again to the right position by the control unit in auto -
matic mode.
S on manu .