Viega 15118 Instruction sheet

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Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Viega®Multifunctional Heat/Cool Thermostat
The Viega multifunctional heat/cool thermostat is easy
to install, easy to wire and easy to program. It can be
used for three stages of heating and two stages of
cooling, making it ideal for many applications. Installation
instructions can be found below.
Part Number 15118
Caution: Electrical Hazard
Failure to disconnect the power before beginning
to install this product can cause electrical shock or
equipment damage.
Mercury Notice:
All of our products are mercury free. However, if the
product you are replacing contains mercury, dispose of it
properly. Your local waste management authority can give
you instructions on recycling and proper disposal.
A trained, experienced technician must install this
product. Carefully read these instructions. You could
damage this product or cause a hazardous condition if
you fail to follow these instructions.
W/E
W2
Y2
For vertical mount put one screw top and one screw bottom.
For horizontal mount put one screw left and one screw right.
The thermostat can be mounted directly to the wall or it can
be mounted to a wall box. Use the vertical mounting screw
location to attach to a wall box.
Mounting the subbase
Thermostat applications guide
Description
Gas or Oil Heat Yes
Electric Furnace Yes
Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes
Multi-stage Systems Yes
Heat Only Systems Yes
Cool Only Systems Ye s

2 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Installation tips
Wall locations
The thermostat should be installed approximately 4 to 5 feet above the
oor. Select an area with average temperature and good air circulation.
NOTE: Pick an installation location that is easy for the
user to access. The temperature of the location should be
representative of the building
Do not install thermostat in locations:
• Close to heating/cooling emitters
• That are in direct sunlight
• With an outside wall behind the thermostat
• In areas that do not require conditioning
• Where there are dead spots or drafts (in corners or
behind doors
• Where there might be concealed chimneys or pipes

3 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Thermostat wiring
1. If you are replacing a thermostat, make note of the
terminal connections on the thermostat that is being
replaced. In some cases the wiring connections will
not be color coded. For example, the green wire
may not be connected to the G terminal.
2. Loosen the terminal block screws. Insert wires then
retighten terminal block screws.
Viega thermostat terminal conversion
Power type
• 3 wire
• 3 wire with battery backup
• 2 wire with battery
Wire specifications
Use shielded or non-shielded 18-22 gauge thermostat wire.
Wiring Tips
C terminal
The C (common wire) terminal does not have to be
connected when the thermostat is powered by batteries.
NOTE: In systems with no emergency heat relay a jumper
can be installed between E and W2 to turn thermostat into
a single stage control.
Warning: All components of the control system and the thermostat installation
must conform to Class II circuits per the NEC Code.
Terminal
2 Heat 2 Cool
Conventional System
2 Heat 2 Cool
Heat Pump System
3 Heat 2 Cool
Heat Pump System
RC Transformer power
(cooling)
Transformer power
(cooling)
Transformer power
(cooling)
RH Transformer power
(heating)
Transformer power
(heating)
Transformer power
(heating)
C Transformer common Transformer common Transformer common
B Energized in heating Heat pump changeover valve
energized in cooling
Heat pump changeover valve
energized in heating
O Energized in cooling Heat pump changeover valve
energized in cooling
Heat pump changeover valve
energized in cooling
G Fan relay Fan relay Fan relay
W/E First stage of heat First stage of emergency heat First stage of emergency heat
Y First stage of cool First stage of heat & cool First stage of heat & cool
Y2 Second stage of cool Second stage of cool Second stage of cool & second
stage of heat
W2 Second stage of heat Auxiliary heat relay,
second stage of heat
Auxiliary heat relay,
third stage of heat
Terminal designations
C
W
C
W/E
L
N
R
C
W
Thermostats
15116
15117
Thermostat
15118
Zone Control
18060
18062
18050
Zone Control
18032
Thermostat
18029
This thermostat is shipped from the factory to operate a conventional heating and cooling
system. See the "heat pump" conguration step on page 11 of this product instruction to
congure the thermostat for heat pump applications.
RH
RC
RH
RC

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Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Typical industry wiring diagrams
NOTE: In many heat pump systems with no emergency heat relay a jumper can be installed between E and W2.

5 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Viega wiring diagrams
ZONE CONTROL (18060, 18062)
WITH OPTIONAL PRIORITY
OFF
ON
ZONE 4 PRIORITY
ZONE 1 ZONE 2 ZONE 3 ZONE 4
ZONE 4 RELAY
N/O N/CCOM
PUMP
END
SWITCH
ISOLATED
END
SWITCH
ZONE 1 ZONE 2 ZONE 3 ZONE 4
FUSE
(5 AMP MAX)
POWER IN
W C
R W CR W CR WCR
1234
120 V AC
Power Supply
L
N
R
C
CC RW NTC A/B
Thermostat -18050
1 2 34 1234 1234
C
O
B
W
RH
RC
G
Y
Thermostat -15116
C
O
B
W
RH
RC
G
Y
Thermostat -15117
C
O
B
W/E
RH
G
Y
Thermostat -15118
W2 Y2
RC
Viega Yellow
Yellow
Red
Red
Viega
Yellow
Yellow
Red
Red
Viega Yellow
Yellow
Red
Red
Viega
Yellow
Yellow
Red
Red
Line Voltage
Low Voltage
LEGEND: Zone Controls
Part Numbers:
15116, 15117 and 15118
1. Connect the "RC" terminal
from the thermostat to "R"
terminal on the zone control.
2. Connect the "W" terminal
from the thermostat to "W"
terminal on the zone control,
for part number 15118
connect "W/E" terminal from
the thermostat to "W" terminal
on the zone control.
3. Connect the "C" terminal from
the thermostat to the "C"
terminal on the zone control.
"C" terminal is optional but
recommended when
using with batteries.

6 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Connecting
Viega
thermostats
to 2 wire
powerheads
Connecting Viega thermostats
to 4 wire powerheads
4 powerheads may
be connected to
each thermostat
4
powerheads
may be
connected
to each
thermostat
Part Numbers:
15116, 15117 and 15118
1. Connect the "RC" terminal
from the thermostat to "R"
terminal on the zone control.
2. Connect the "W" terminal
from the thermostat to "W"
terminal on the zone control,
for part number 15118
connect "W/E" terminal from
the thermostat to "W" terminal
on the zone control.
3. Connect the "C" terminal from
the thermostat to the "C"
terminal on the zone control.
"C" terminal is optional but
recommended when using
with batteries.
Line Voltage
Low Voltage
LEGEND: Thermostat
Line Voltage
Low Voltage
LEGEND: Thermostat
ZONE CONTROL (18060, 18062)
WITH OPTIONAL PRIORITY
OFF
ON
ZONE 4 PRIORITY
ZONE 1 ZONE 2 ZONE 3 ZONE 4
ZONE 4 RELAY
N/ON/CCOM
PUMP
END
SWITCH
ISOLATED
END
SWITCH
ZONE 1 ZONE 2 ZONE 3 ZONE 4
FUSE
(5 AMP MAX)
POWER IN
WCRW C RW C
RWCR
12
3 4
120 V AC
Power Supply
L
N
Viega
Viega
Viega
Yellow
Yellow
Red
Red
Yellow
Black
White
Yellow
Red
Red
Viega
Yellow
Yellow
Red
Red
R
C
C C RW NTCA/B
Thermostat -18050
POWERHEAD (15061)
FOR USE WITH
STAINLESS MANIFOLD
2 WIRE, 24 V,
POWERHEAD (15064)
FOR USE WITH
STAINLESS MANIFOLD
4 WIRE, 24 V,
JUMPER
3&4 JUMPER
3&4
IF PRIORITY
IS USED
1234 123 4 123 4
C
O
B
W
RH
RC
G
Y
Thermostat -15116
C
O
B
W
RH
RC
G
Y
Thermostat -15117
C
O
B
W/E
RH
G
Y
Thermostat -15118
W2 Y2
RC
Line Voltage
Low Voltage
LEGEND: Thermostat
C
O
B
W/E
RH
G
Y
Thermostat -15118
W2 Y2
RC
Class II
Transformer
C
R
120 V AC
Power Supply
N
L
Viega
Viega
C
O
B
W/E
RH
G
Y
Thermostat -15118
W2 Y2
RC
Class II
Transformer
C
R
120 V AC
Power Supply
N
L
Viega
Red
Red Yellow
Yellow
TO T-T BOILER CONTACT, PUMP
RELAY OR OTHER AUXILIAR
Y
DEVICE REQUIRING CONTAC
T
CLOSURE. SEE NOTE 2.

7 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Attaching the thermostat to the subbase
Align the 4 tabs on the subbase with corresponding slots
on the back of the thermostat, then push gently until the
thermostat snaps in place.
Note: To insure a solid t between the thermostat and the
subbase:
1. Mount subbase to a flat wall or electrical box.
2. Use screws provided.
3. Drywall anchors should be flush with the wall.
4. Wires should be pushed into the wall.
Battery installation
Battery installation is recommended even if thermostat
is hardwired (C terminal connected). When thermostat
is hardwired and batteries are installed, the thermostat
will activate a compressor delay of 5 minutes when the
thermostat detects a power outage from the hardwired
power supply.
Important:
High quality alkaline batteries are recommended.
Rechargeable batteries or low quality batteries do not
guarantee a 1-year life span.
To release battery cover press nger bevel on the
left side and lift the cover to access batteries.
Simple operating instructions are found
on the back of the battery door.

8 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Thermostat display
Important:
The low battery indicator is displayed when the AA
battery power is low. If the user fails to replace the
battery within 21 days, the screen will only show the low
battery indicator but maintain all functionality. If the user
fails to replace the batteries after an additional 21 days
(days 22-42 since rst “low battery” display) the set points
will change to 55°F (Heating) and 85°F (Cooling). If the
user adjusts these setpoints away from these it will hold
for 4 hours then return to either 55°F or 85°F. After day
42 the batteries must be replaced immediately to avoid
freezing or overheating because the thermostat will shut
the unit off until the battery is changed.
1LCD Display
2Glow in the dark light button
3Set point buttons
4 - 6 Program buttons
7Menu button
8Fan button
9System button
10 Button/battery access door
11 Battery cover

9 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Programming the thermostat
This thermostat has a technician setup menu for easy
installer conguration. To setup the thermostat for your
particular application:
1. Press MENU button.
2. Press and hold TECH SET button for three seconds. This
three second delay is designed so that homeowners do
not accidentally access the installer settings.
3. Congure the installer options as desired using the
table below.
Use the +or –keys to change settings and the
NEXT STEP or PREV STEP key to move from one
option to another. Note: Only press DONE key when
you want to exit the Technician Setup options.
NOTE: Only press DONE key when you want to exit
the Technician Setup options.
4. Press DONE key to exit.
Technician Setup Steps
Filter Change
Reminder
Room Temperature
Calibration
Minimum
Compressor On Time
Compressor Short
Cycle Delay Cooling Swing Heating Swing
This feature will ash
"FILT" in the display
after the elapsed run
time to remind the
user to change the
lter. A setting of "off"
will disable this feature
This feature allows the
installer to change the
calibration of the room
temperature display.
For example, if the
thermostat reads 70°
and you would like it
to read 72° then select
+2.
This feature allows
the installer to select
the minimum run time
for the compressor.
For example: A
setting of 4 will force
the compressor to
run for at least 4
minutes every time the
compressor turns on,
regardless of the room
temperature
The compressor short
cycle delay protects
the compressor from
"short cycling". This
feature will not allow
the compressor to
be turned on for 5
minutes after it was
last turned off.
The swing setting,
often called "cycle
rate", "differential"
or "anticipation" is
adjustable. A smaller
swing setting will
cause more frequent
cycles and a larger
swing setting will
cause fewer cycles.
The swing setting,
often called "cycle
rate", "differential"
or "anticipation" is
adjustable. A smaller
swing setting will
cause more frequent
cycles and a larger
swing setting will
cause fewer cycles.
LCD will Show
Adjustment Options
You can adjust the
lter change reminder
from "off" to 2000
hours of runtime in 50
hour increments.
NOTE: To reset the
lter reminder, hold
down the third button
from the left for 3
seconds
You can adjust the
room temperature
display to read -4°F to
+4°F above or below
the factory calibrated
reading.
You can select the
minimum compressor
run time from "off",
"3", "4", or "5"
minutes. If 3, 4, or
5 is selected, the
compressor will run for
at least the selected
time before turning off.
Selecting "on" will not
allow the compressor
to be turned on for 5
minutes after the last
time the compressor
was on. Select "off" to
remove this delay.
The cooling swing
setting is adjustable
from ±0.2°F to ±2°F.
For example: A swing
setting of 0.5°F will
turn the cooling on at
approximately 0.5°F
above the setpoint and
turn the cooling off at
approximately 0.5°F
Below the setpoint.
The heating swing
setting is adjustable
from ±0.2°F to ±2°F.
For example: A swing
setting of 0.5°F will
turn the heating on at
approximately 0.5°F
below the setpoint and
turn the heating off at
approximately 0.5°F
above the setpoint.
Factory Default Settings
Off 0°F Off On 0.5°F 0.4°F
NOTE: To lock the keypad hold down the +and –keys for three seconds. You will see a lock in the display. To
unlock the key pad hold down the +and –keys for three seconds.

10 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Technician Setup Steps (continued from the previous page)
Keypad Lockout
Heating Temperature
Setpoint Limit
Cooling Temperature
Setpoint Limit °F or °C 12 or 24 Hour Clock Fan Operation
Keypad lockout allows
you to congure the
thermostat so that
none or some of the
keys do not function.
This feature allows you
to set a maximum heat
setpoint value. The
setpoint temperature
cannot be raised
above this value.
This feature allows you
to set a minimum cool
setpoint value. The
setpoint temperature
cannot be lowered
below this value.
This feature allows
you to display
temperatures in either
Fahrenheit or Celsius.
You can select either
a 12 or 24 hour clock
setting.
Select GAS for
systems that control
the fan during a call
for heat.
Select ELEC to have
the thermostat control
the fan during a call
for heat.
LCD will Show
Adjustment Options
Pick PA or FU
PA = partial keypad
lockout, which locks
all the keys except the
+or –keys.
FU = Full keypad
lockout, which locks
out all the keys.
Note: Keypad lockout
instructions are below.
Use the +or –key
to select the maximum
heat setpoint.
Range 44°F - 90°F
Use the +or –key
to select the minimum
cool setpoint.
Range 44°F - 90°F
°F for Fahrenheit
°C for Celsius
Use the +or –key
to select 12 or 24 hour
clock.
GAS or ELEC
Factory Default Settings
PA 90°F 44°F °F 12 hour clock GAS

11 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Technician Setup Steps (continued from the previous page)
Morning Recovery Program Options Time Periods Pre Occupancy Fan Display Light
Contractor Call
Number
This feature will
start heating early
to bring the building
temperature to its
programmed setpoint
by the beginning of the
time period - (WAKE,
OCCUPIED).
You can congure this
thermostat to have
a 7 day program, a
5+1+1 program or
nonprogrammable.
You can congure this
thermostat to have 2
or 4 programmable
time periods per day. 4
time periods are Wake,
Leave, Return & Sleep.
2c time periods
are Occupied and
Unoccupied.
4c time periods
are Occupied 1,
Unoccupied 1,
Occupied 2, and
Unoccupied 2.
The pre occupancy
fan settings will
energize the fan before
the occupied time to
provide ventilation
prior to scheduled
occupancy.
This feature only
shows if technician
setup step for time
periods is set to 2C
or 4C.
The display light can
be congured to stay
on at all times or come
on when any key is
pressed.
NOTE:
HARDWIRE ONLY
Keeping the display
light continually "ON"
will greatly reduce
battery life.
Allows you to put your
phone number in the
display.
You can choose ON
or OFF
LCD will Show
Adjustment Options
Use the +or –key
to turn on or off.
Use the +or –key
to select 7d for 7 day,
5d for 5+1+1, or 0d for
nonprogrammable.
Use the +or –key
to select 4, 2c or 4c
time periods per day.
You can select the pre
occupancy fan from
OFF, 1, 2, or 3 hours.
If 1, 2, or 3 is selected,
the fan will turn on
that many hours prior
to the scheduled
occupied time period.
Use the +or –key
to turn on or off.
OFF congures
display light to come
on when the light key
or any key on screen
is pressed.
ON congures the
display light to stay
on.
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.
Factory Default Settings
ON 5d 4 OFF OFF OFF

12 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Technician Setup Steps (continued from the previous page)
Beep Heat Pump
System
Set
Gas Auxiliary for
Heat Pump Stages of Heat Cooling Fan Delay
When any key is
pressed an audible
beep will sound.
You can choose ON
or OFF
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 rst stage
of heat & cool, W/E
will be emergency
heat relay & W2 will be
auxiliary heat relay.
You can congure 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.
This option will turn
the heat pump off
45 seconds after the
auxiliary heat relay
turns on.
For 2 stage heat
applications, the rst
stage will turn off 45
seconds after the
auxiliary stage turns
on.
For 3 stage heat
applications, the rst
and second stage will
turn off 45 seconds
after the auxiliary
stage turns on.
You can congure the
thermostat to operate
a 3 stage heat pump
system.
2H 2C =
2 heat, 2 cool
3H 2C =
3 heat, 2 cool
This feature only
shows if Technician
Setup Step for HEAT
PUMP is set to ON.
The cooling fan delay
setting will delay the
fan from coming on
in cool mode and
keep running after
the compressor shuts
off for a short time to
save energy in some
systems.
LCD will Show
Adjustment Options
On is selected the
beep will sound.
OFF is selected, there
is no sound.
OFF congures the
thermostat for non
heat pump systems.
ON congures the
thermostat for heat
pump systems.
Use the +or –
key until the desired
application is ashing.
For heat pump
systems that are
"dual fuel" (use a gas
furnace for auxiliary
stage heat) you can
turn this feature on to
turn off the heat pump
when the auxiliary
stage of heating has
been called for.
Use the +or –key
to change between 2
heat and 3 heat
2 heat will use Y1 as
rst stage and W2 as
auxiliary.
3 heat will use Y1
as rst stage, Y2 as
second stage and W2
as auxiliary.
You can select the
Cooling Fan Delay
from OFF, 15, 30, 60 or
90 seconds.
Factory Default Settings
ON OFF Heat-Off-Cool OFF 2 Stages 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.

13 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
A note about IAQ mode:
This programmable/selectable mode will operate the fan 1-4 cycles per hour,
1-45 minutes per cycle. Once programmed in tech setup, to enable this mode
select IAQ with the fan key. Or you can disable the mode by selecting ON or
AUTO with the fan key.
Technician Setup Steps (continued from the previous page)
IAQ Mode
Cycle IAQ Mode Minutes
Satisfy
Setpoint
Staging
Delay
This feature will
congure the fan to
run a selected number
of cycles "per hour".
Note: This mode can
be enabled or disabled
at anytime during
normal operation, by
selecting IAQ mode
with the fan key.
This allows you to
select the minimum
number of minutes
that the fan will run
"per cycle". The
thermostat will keep
track of fan run time
from normal Heat
and Cool operation.
If additional fan
runtime is needed the
thermostat will run the
fan to satisfy the IAQ
mode minutes.
This feature allows the
thermostat to keep
multiple stages of heat
or cool energized until
setpoint is satised.
This feature allows a
delay to occur when
a second and third
stage is needed. This
allows the previous
stage extra time to
satisfy setpoint.
LCD will Show
Adjustment Options
Select OFF, 1, 2, 3 or
4 with the +or –
keys.
This sets the number
of cycles per hour that
the IAQ fan mode will
operate.
Select 1, 5, 10, 15, 20,
30 or 45 minutes.
When IAQ fan mode is
enabled, it will ensure
the fan runs at least
the selected number
of minutes per IAQ
mode cycle.
Use the +or –key
to turn on or off.
Use the +or –
key to select YES, 5,
10, 15, 30, 45, 60, 90
minutes.
Factory Default Settings
OFF 1 OFF OFF

14 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Technician Setup Steps
(continued from the previous page)
Humidity Pad
Reminder UV Lamp Reminder IAQ Cell Reminder
This will remind the
user to change the
humidity pad.
Will remind the user
to change the UV light
bulb.
Will remind the user to
change the PHI Cell
after 25,000 hrs.
LCD will Show
Adjustment Options
Use the +or –key
to select OFF, 600,
1000, 1500, 2000.
These represent hours
of heat operation.
Use the +or –key
to select OFF, 1 Year,
2 Year.
Use the +or –key
to select OFF, 250.
(Stands for 25,000
hours)
Factory Default Settings
OFF OFF OFF
Reminders Note:
Once a reminder has been turned on and set, the elapsed
time can be checked by navigating to its tech setup step.
The elapsed time will then appear in the text eld. It can
also be reset at that time by a press and hold of the third
button from the left for three seconds. Resetting an expired
reminder can be done without entering tech setup, by a
press and hold of the third button from the left for three
seconds.

15 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Programming the schedule
Set time
Follow the steps below to set the day of the week and
current time:
1. Press MENU.
2. Press SET TIME.
3. Day of the week will be flashing. Use the +or
–key to select the current day of the week.
4. Press NEXT.
5. The current hour is flashing. Use the +or –
key to select the current hour. When using 12-hour
time, make sure the correct a.m. or p.m. choice is
selected.
6. Press NEXT.
7. Minutes are now flashing. Use the +or –key
to select current minutes.
8. Press DONE when completed.
All our programmable thermostats are shipped with an
energy saving pre-program. You can customize this
default program by following the Set Program Schedule.
Your thermostat can be programmed to have each day of
the week programmed uniquely (7 days), all the weekdays
the same, a separate program for Saturday, and a separate
program for Sunday (5+1+1), or non-programmable. There
are three time period options for each program:
1. "4" Residential (WAKE, LEAVE, RETURN, SLEEP)
2. "2C" Commercial (OCCUPIED, UNOCCUPIED)
3. "4C" Commercial (OCCUPIED 1, UNOCCUPIED 1,
OCCUPIED 2, UNOCCUPIED 2)
This thermostat has a programmable fan feature which
allows you to run the fan continuously during any time
period.
Factory Default Program
Day
of the
Week Events Time
Setpoint
Temperature
(Heat)
Setpoint
Temperature
(Cool)
Weekday
Wake/OCC1 6 a.m. 70°F (21°C) 75°F (24°C)
Leave/UNOCC1 8 a.m. 62°F (17°C) 83°F (28°C)
Return/OCC2 6 p.m. 70°F (21°C) 75°F (24°C)
Sleep/UNOCC2 10 p.m. 62°F (17°C) 78°F (26°C)
Saturday
Wake/OCC1 8 a.m. 70°F (21°C) 75°F (24°C)
Leave/UNOCC1 10 a.m. 62°F (17°C) 83°F (28°C)
Return/OCC2 6 p.m. 70°F (21°C) 75°F (24°C)
Sleep/UNOCC2 11 p.m. 62°F (17°C) 78°F (26°C)
Sunday
Wake/OCC1 8 a.m. 70°F (21°C) 75°F (24°C)
Leave/UNOCC1 10 a.m. 62°F (17°C) 83°F (28°C)
Return/OCC2 6 p.m. 70°F (21°C) 75°F (24°C)
Sleep/UNOCC2 11 p.m. 62°F (17°C) 78°F (26°C)
Factory Default Program for 2 Time Periods
Day of
the Week Events Time
Setpoint
Temperature
(Heat)
Setpoint
Temperature
(Cool)
Weekday Occupied 8 a.m. 70°F (21°C) 73°F (23°C)
Unoccupied 6 p.m. 64°F (18°C) 80°F (27°C)
Saturday Occupied 8 a.m. 70°F (21°C) 73°F (23°C
Unoccupied 6 p.m. 64°F (18°C) 80°F (27°C)
Sunday Occupied 8 a.m. 70°F (21°C) 73°F (23°C)
Unoccupied 6 p.m. 64°F (18°C) 80°F (27°C)

16 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
You can use the table below to plan your customized
program schedule if using 5+1+1.
Set program schedule for four time periods
(WAKE, LEAVE, RETURN, SLEEP or OCCUPIED 1,
UNOCCUPIED 1, OCCUPIED 2, UNOCCUPIED 2)
To customize your 5+1+1 program schedule, follow these
steps:
Weekday
1. Select HEAT or COOL using the SYSTEM key.
NOTE: You have to program heat and cool each
separately.
2. Press MENU.
3. Press SET SCHED. NOTE: Monday-Friday is
displayed and the WAKE/OCC1 icon is shown. You
are now programming the WAKE/OCC1 time period
for the weekday setting.
4. Time is flashing. Use the +or –key to
make your time selection for the weekday WAKE/
OCC1 time period. NOTE: If you want the fan to run
continuously during this time period, select ON with
the FAN key. If you want to use IAQ mode during
this time period, select IAQ with the fan key.
5. Press NEXT.
6. The setpoint temperature is flashing. Use the +
or –key to make your setpoint selection for the
weekday WAKE/OCC1 period.
7. Press NEXT.
8. Repeat steps 4 through 7 for weekday LEAVE/
UNOCC1 time period, for weekday RETURN/OCC2
time period, and for weekday SLEEP/UNOCC2 time
period.
Saturday:
9. Repeat steps 4 through 7 for Saturday WAKE/OCC1
time period, for Saturday LEAVE/UNOCC1 time
period, for Saturday RETURN/OCC2 time period,
and for Saturday SLEEP/UNOCC2 time period.
Sunday:
10. Repeat steps 4 through 7 for Sunday WAKE/OCC1 time
period, for Saturday LEAVE/UNOCC1 time period, for
Sunday RETURN/OCC2 time period, and for Saturday
SLEEP/UNOCC2 time period.
To customize your 7 day program schedule, follow these steps:
Monday
1. Select HEAT or COOL using the SYSTEM key. You
have to program heat and cool each separately.
2. Press MENU.
3. Press SET SCHED. NOTE: Monday is displayed
and the WAKE/OCC1 icon is shown. You are now
programming the WAKE/OCC1 time period for the
Monday setting.
4. Time is flashing. Use the +or –key to make
your time selection for the Monday WAKE/OCC1
time period. NOTE: If you want the fan to run
continuously during this time period, select ON with
the FAN key. If you want to use IAQ mode during
this time period, select IAQ with the fan key.
5. Press NEXT.
6. The setpoint temperature is flashing. Use the +
or –key to make your setpoint selection for the
Monday WAKE/OCC1 period.
7. Press NEXT.
8. Repeat steps 4 thru 7 for Monday LEAVE/UNOCC1
time period, for Monday RETURN/OCC2 time period,
and for Monday SLEEP/UNOCC2 time period.
Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday:
Repeat steps 4 through 8 for the remaining days of the week.
Programming Table
Day
of the
Week Events Time
Setpoint
Temperature
(Heat)
Setpoint
Temperature
(Cool)
Weekday
Wake/OCC1
Leave/UNOCC1
Return/OCC2
Sleep/UNOCC2
Saturday Wake/OCC1
Leave/UNOCC1
Return/OCC2
Sleep/UNOCC2
Sunday Wake/OCC1
Leave/UNOCC1
Return/OCC2
Sleep/UNOCC2

17 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Set program schedule for two time periods
(OCCUPIED, UNOCCUPIED)
To customize your 5+1+1 program schedule, follow these steps:
Weekday
1. Select HEAT or COOL using the SYSTEM key.
NOTE: You have to program heat and cool each
separately.
2. Press MENU.
3. Press SET SCHED. NOTE: Monday-Friday is
displayed and the OCCUPIED text is shown. You
are now programming the OCCUPIED time period
for the weekday setting.
4. Time is flashing. Use the +or –key to make
your time selection for the weekday OCCUPIED
time period. NOTE: If you want the fan to run
continuously during this time period, select ON with
the FAN key. If you want to use IAQ mode during
this time period, select IAQ with the fan key.
5. Press NEXT STEP.
6. The setpoint temperature is flashing. Use the +
or –key to make your setpoint selection for the
weekday OCCUPIED period.
7. Press NEXT.
8. Repeat steps 4 through 7 for weekday
UNOCCUPIED time period.
Saturday:
9. Repeat steps 4 through 7 for Saturday OCCUPIED
time period and for Saturday UNOCCUPIED time
period.
Sunday:
10. Repeat steps 4 through 7 for Sunday OCCUPIED time
period and for Sunday UNOCCUPIED time period.
To customize your 7 day program schedule, follow these steps:
Monday
1. Select HEAT or COOL using the SYSTEM key. You
have to program heat and cool each separately.
2. Press MENU.
3. Press SET SCHED. NOTE: Monday is displayed
and the OCCUPIED text is shown. You are now
programming the OCCUPIED time period for the
Monday setting.
4. Time is flashing. Use the +or –key to make
your time selection for the Monday time period.
NOTE: If you want the fan to run continuously
during this time period, select the FAN key. If you
want to use IAQ mode during this time period,
select IAQ with the fan key.
5. Press NEXT.
6. The setpoint temperature is flashing. Use the +
or –key to make your setpoint selection for the
Monday OCCUPIED period.
7. Press NEXT.
8. Repeat steps 4 through 7 for Monday
UNOCCUPIED time period.
Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday:
Repeat steps 4 through 8 for the remaining days of the week.
A note about auto changeover:
If in Auto you have the ability to switch between Auto
Heat or Auto Cool by pressing the System key. This can
be done once the current mode has reached its setpoint.
For example: If in Auto Heat, the heat setpoint must be
satised before the thermostat will allow you to switch to
Auto Cool. You can switch out of Auto by holding down
the System key. To get back into Auto, you must toggle
the System key to Auto.
A note about programmable fan:
The programmable fan feature will run the fan
continuously during any time period it is programmed to
be on. This is the best way to keep the air circulated and
to eliminate hot and cold spots in your building. If using
IAQ Mode, set fan to IAQ for any time period desired.

18 of 18
Product
Instructions
PI-PR 566441 1017 (Multifunctional Thermostat) (EN ES FR)
Viega LLC, 12303 Airport Way, Ste. 395 • Broomfield, CO 80021 • Ph: 800-976-9819 • Fax: [phone]
Technical data
The display range of temperature . . . 41°F to 95°F
(5°C to 35°C)
The control range of temperature . . . 44°F to 90°F
(7°C to 32°C)
Loading Rate . . . . . . . . . . . . . . . . 1 amp per terminal,
1.5 amp maximum all
terminals combined
Display accuracy . . . . . . . . . . . . . ±1°F
Swing (cycle rate or differential) . . . . Heating is adjustable
from 0.2°F to 2.0°F
Cooling is adjustable
from 0.2°F to 2.0°F
Power source . . . . . . . . . . . . . . . 18 to 30 VAC, NEC
Class II, 50/60 Hz for
hardwire (common wire)
Battery power from 2 AA
alkaline batteries
Operating ambient. . . . . . . . . . . . 32°F to +105°F
(0°C to +41°C)
Operating humidity . . . . . . . . . . . 90% non-condensing
maximum
Dimensions of thermostat . . . . . . 4.8"W x 4.4"H x 1"D
Thermostat applications guide
Description
Gas or Oil Heat Yes
Electric Furnace Yes
Heat Pump (No Aux. or Emergency Heat) Yes
Heat Pump (with Aux. or Emergency Heat) Yes
Multi-stage Systems Yes
Heat Only Systems Yes
Cool Only Systems Ye s
Pour obtenir des instructions en français visite www.viega.us
Temporary and permanent hold feature
Temporary hold: The thermostat will display HOLD
and RUN SCHED on the bottom of your screen when
you press the +or –key. If you do nothing, the
temperature will remain at this setpoint temporarily for
four hours. Your program setpoint will then replace your
temporary setpoint.
Permanent hold: If you press HOLD key at the bottom of
our screen, you will see HOLD appear below the setpoint
temperature in the display. The thermostat will now
permanently stay at this setpoint and can be adjusted
using the +or –keys.
To return to program: Press the RUN SCHED key at
the bottom of your screen to exit either temporary or
permanent hold.
Filter change and other reminders
If your installing contractor has configured the thermostat
to remind you when the air filter needs changed, you will
see FILT in the display when your air filter needs changed.
FILT will be shown in the display after your system has run
long enough to require an air filter change.
Resetting the filter change reminder: When FILT reminder
is displayed, you should change your air filter and reset
the reminder by holding down the third button from the
left side of the thermostat for three seconds.
This thermostat also has other maintenance reminders
(Humidity Pad, UV Lamp and IAQ Cell), that are reset with
the same procedure.
This document subject to updates. For the most current Viega technical literature please visit www.viega.us.
Para ver las instrucciones en español visite www.viega.us
Los productos de Viega están diseñados para ser instalados por plomeros y
mecánicos profesionales, capacitados y con licencia, que estén familiarizados
con los productos Viega y su instalación. La instalación realizada por personal no
profesional puede anular la garantía de Viega LLC.
Les produits Viega sont conçus pour être installés par des plombiers et
mécaniciens professionnels agréés et dûment formés qui en connaissent bien les
méthodes d’utilisation et d’installation. L’installation par des non-professionnels est
susceptible d’entraîner l’annulation de la garantie de Viega LLC.
Viega products are designed to be installed by licensed and trained plumbing and mechanical professionals who are familiar
with Viega products and their installation. Installation by non-professionals may void Viega LLC’s warranty.