Summer Mode (Stand-By Mode) - Viessmann VITOTRON 100 Installation And Service Instructions Manual

Instructions for the User
Summer Mode
INDICATOR
psi
16
(Stand-by Mode)
DETAILS
The control panel is off and the stand-by mode indicator (dot) blinks only.
Pressure level [pounds/square inch].
To check out the installation pressure press or
Circulation pump is active. In summer mode (heating elements turned off).
The circulating pump will operate for 15 minutes, once every 24 hours each day.
Vitotron 100 Electric Boiler Installation/Service
IMPORTANT
Do not shut off the power supply between heating
seasons. To set the electric boiler to summer or stand-by
mode press and hold 9 power button for 3 seconds.
When the control panel is switched to summer mode the
control panel is off and the stand-by mode indicator
remains blinking. In this mode the electric boiler is off but
the pump is activated every day for 15 minutes.
This summer mode protects the electric boiler and the
hydronic heating installation from being blocked and
silted up. The pump will run every day at the same time
when the electric boiler is switched to summer mode. For
example, if you turn the electric boiler to "stand-by" mode
at 6 p.m. the timer will activate the pump every day for
15 minutes starting at 6 p.m.
To set the electric boiler back to winter heating mode
press and hold power button 9 for 3 seconds.
Note: In summer mode, based on U.S. national electric
rates of $.10/kWh the cost of operating the
circulating pump for 15 minutes/day will equate to
approximate usage of $.08 / month on the highest
speed.
MODE VIEW
PRESSURE VIEW
STATUS PUMP VIEW