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Viega Multifunctional Thermostat User Guide
UG-HC 566441 1219 Multifunctional Thermostat (EN)
Technician Setup Steps
LCD will Show
Adjustment Options
Factory
Default
Settings
Display Light
The display light can be configured to
stay on at all times or come on when
any key is pressed.
Hardware only: keeping the display
light continually ON will greatly reduce
battery life.
Use the + or - key to
turn on or off.
OFF configures display
light to come on when
the light key or any key
on screen is pressed.
ON configures the
display light to stay on.
OFF
Contractor Call Number
Allows you to put your phone number
in the display.
You can choose ON or OFF
Note: If contractor Call Number is selected
ON, your phone number will show in the
display if there has been a continuous call for
heating or cooling for 24 hours or if the light
button is held down for three seconds. To
remove the phone number from the display,
hold the light button for three seconds.
If selected on, you will
see the input screen
after pressing next step.
Use the + or - key
to select the desired
number and the FAN or
SYSTEM key to move
from one character to
another. See note below
operation.
OFF
Beep
When any key is pressed an audible
beep will sound.
You can choose ON or OFF
ON is selected the beep
will sound.
OFF is selected, there is
no sound.
ON
Heat Pump
When turned on the thermostat will
operate a heat pump.
1. EM. Heat will show as an option in
the system switch.
2. Y will be first stage of heat & cool,
W/E will be emergency heat relay & W2
will be auxiliary heat relay.
OFF configures the
thermostat for non heat
pump systems.
ON configures the
thermostat for heat
pump systems.
OFF
System Set
You can configure the system switch
for the particular application:
Heat - Off - Cool,
Heat - Off,
Cool - Off,
Heat-Off-Cool-Auto
Note: EM, Heat will show if in heat
pump mode.
Use the + or - key until
the desired application
is flashing.
Heat-Off-
Cool
