Viega 15117 User manual

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User Guide
Viega Programmable Heat/Cool
Thermostat
UG-HC 566440 1219 Programmable Thermostat (EN)
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.
Part Number 15117
Viega products are designed to be
installed by licensed and trained
plumbing, mechanical, and electrical
professionals who are familiar with Viega
products and their installation.
Installation by non-professionals may
void Viega LLC’s warranty.
This document is subject to updates.
For the most current Viega technical
literature please visit www.viega.us.
Pick an installation location that is
easy for the user to access. The
temperature of the location should be
representative of the building
Installation Tips
Applications Guide
The Programmable Heat/Cool Thermostat can
be use for the following applications:
■ Gas or Oil Heat
■ Electric Furnace
■ Heat Pump (No Aux. or Emergency Heat)
■ Heat Only Systems
■ Cool Only Systems
The following applications are not recommended:
■ Heat Pump (with Aux. or Emergency Heat)
■ Multi-stage Systems
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.
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
No
No
No Yes

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
W
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 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.
To insure a solid 󶈵t between the thermostat and
the subbase:
■ Mount subbase to a 󶈶at wall or electrical box.
■ Use screws provided.
■ Drywall anchors should be 󶈶ush with the wall.
■ Wires should be pushed into the wall.
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.

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
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.
Insert 2 AA Alkaline batteries
(included). High quality alkaline
batteries are recommended.
Simple operating instructions are
found on the back of the battery door.
Important:
High quality alkaline batteries are
recommended. Rechargeable batteries
or low quality batteries do not guarantee a
1-year life span.
Thermostat Wiring
■ 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.
■ Loosen the terminal block screws. Insert
wires then retighten terminal block screws.
WARNING!
All components of the control system
and the thermostat installation must
conform to Class II circuits per the NEC Code.
Thermostats
15116
15117
Thermostat
15118
Zone Controls
18060
18062
18050
Zone Control
18032
Thermostat
18029
C
W
C
W/E
L
N
R
C
W
RH RC
Terminal Designations
■ W Heat relay
■ Y Compressor relay
■ G Fan relay
■ O Heat pump changeover valve energized in
cooling
■ RC Transformer power for cooling
■ RH Transformer power for heating
■ B Heat pump changeover valve energized in heating
■ C Common wire from secondary side of
cooling system transformer
Viega Thermostat Terminal
Conversion
Power Type
■ 3 wire
■ 3 wire with battery backup
■ 2 wire with battery
Wiring Tips
RH & RC terminals
For single transformer systems, leave the jumper
wire in place between RH and RC. Remove
jumper wire for two transformer systems.
Heat Pump Systems
No auxiliary or emergency heat. If wiring to
a heat pump, use a small piece of wire (not
supplied) to connect terminals W and Y.
C Terminal
The C (common wire) terminal does not have to be
connected when the thermostat is powered by batteries.
Wire Specifications
Use shielded or non-shielded 18-22 gauge
thermostat wire.
CAUTION!
Electrical hazard. Failure to disconnect
the power before beginning to install
this product can cause electrical shock or
equipment damage.

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Typical Industry Wiring Diagrams
Typical 1H/1C System: 1 Transformer Typical Heat-Only System
Power supply
Factory-installed jumper. Remove only
when installing on 2-transformer systems
Use either O or B terminals for
changeover valve
Use a small piece of wire (not supplied) to
connect W and Y terminals
Set fan operation setting to Electric
Optional 24 VAC common connection when
thermostat is used in battery power mode
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Typical 1H/1C System: 2 Transformer Typical Heat Only System With Fan
Typical 1H/1C Heat Pump System Typical Cool-Only System
Compressor
Relay
Heat Relay
Fan Relay
(HOT)
Compressor
Relay
Heat Relay
Remove
Jumper
Fan Relay
(HOT)
(HOT)
(HOT)
(HOT)
(HOT)
Heat Relay
Heat Relay
Fan Relay
Fan Relay
Compressor
Relay
Compressor Relay
Heat Change
Over Valve
Cool Change
Over Valve
Fan Relay
(HOT)

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Viega Wiring Diagrams
Connecting Viega Thermostats and Zone Valves to the Viega Zone Control
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Viega
Legend: Thermostat
Low Voltage
Line Voltage
Part Numbers: 15116, 15117, and 15118
■ Connect the RC terminal from the
thermostat to R terminal on the zone
control.
■ 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.
■ Connect the C terminal from the
thermostat to the C terminal on the
zone control.
Zone Control (18060, 18062)
with Optional Priority
Thermostat 15116 Thermostat 15117
Thermostat
18050
Thermostat 15118

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Viega Wiring Diagrams
Connecting Viega Thermostats to the Viega Zone Control
Legend: Thermostat
Low Voltage
Line Voltage
Part Numbers: 15116, 15117, and 15118
■ Connect the RC terminal from the
thermostat to R terminal on the zone
control.
■ 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.
■ 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.
Viega
Viega
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Viega
Viega
Powerhead (1501, 150704)
2 Wire, 24 V
For use with Stainless Manifold
Thermostat 15116 Thermostat 15117
Thermostat
18050
Powerhead
(15064, 5069)
4 Wire, 24 V,
For use with
Stainless Manifold
Zone Control (18060, 18062)
with Optional Priority
Thermostat 15118

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Connecting Viega Thermostats
to 2-Wire Powerheads
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
Black
White
4 powerheads may be connected to each
thermostat
Connecting Viega Thermostats
to 4-Wire Powerheads
4 powerheads may be connected to each
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
Red
Red Yellow
Yellow
Viega
To T-T boiler contact,
pump replay or other
auxiliary device
requiring contact
closure.
Legend: Thermostat
Low Voltage
Line Voltage
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 first “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 63 the batteries must be replaced immediately to avoid freezing or
overheating because the thermostat will shut the unit off until the battery is changed.
Thermostat Display
1 LCD Display
2 Glow in the dark light button
■Push the glow in the dark button and
screen will illuminate.
3 Fan switch
■Set to AUTO to run the fan anytime heating
or cooling is running.
■Set to ON to run the fan at all times.
4 System switch
■Set to heating / cooling or o󶈴.
5 Easy change battery door
■2 AA batteries included
6 Temperature setpoint buttons
■Use the + or - buttons to adjust the room
temperature.
7 User Buttons
■Menu, Tech Setup, Set Time, Set Sched
1
6
2
3
7
4
5

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
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System Operation
Indicators
The COOL ON, HEAT
ON or icon will
display when the COOL,
HEAT or (fan) is on.
Indicates the current
room temperature.
Button Options
Displays the user
selectable setpoint
temperature.
Low Battery Indicator
Replace batteries when
this indicator is shown.
Hold is displayed
when the thermostat
program is permanently
overidden.
Days of the week
and time.
Program Time Periods
This thermostat has four programmable
time periods per day.
Adjusting the Room Temperature
The current room temperature is displayed in
large text in the center of the thermostat under
the “temperature” heading. The set point or
desired room temperature is in the upper right
corner of the display under “set at”. To raise or
lower the desired “set at” temperature use the +
and - buttons on the top right of the thermostat.
Swing Setting Tip
Temperature swing, sometimes called di󶈴erential
or cycle rate, can be customized for this individual
application. For most applications choose a
swing setting that is as long as possible without
making the occupants uncomfortable.
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 Configure the installer options as desired
using the table below.
4 Use the + or - keys to change settings and
the NEXT STEP or PREV STEP key to move
from one option to another.
Only press DONE key when you want
to exit the Technician Setup options.

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Tech Settings LCD will
Show
Adjustment Options Factory
Default
Settings
Filter Change Reminder
This feature will flash “FILT” in
the display after the elapsed run
time to remind the user to change
the filter. A setting of OFF will
disable this feature.
You can adjust the filter change
reminder from OFF to 2000 hours
of runtime in 50 hour increments.
Tap the second button from the left
side of the thermostat to display
the current filter elapsed time.
Off
Room Temperature Calibration
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.
You can adjust the room
temperature display to read -4°F
to +4°F above or below the factory
calibrated reading.
0
Compressor Short Cycle Delay
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.
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.
On
Cooling Swing
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 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.
0.5
Cooling Swing
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 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.
0.5
Heating Swing
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 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.
0.4

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Tech Settings LCD will Show Adjustment Options Factory
Default
Settings
Heating Temperature
Setpoint Limit
This feature allows you
to set a maximum heat
setpoint value. The setpoint
temperature cannot be raised
above this value.
Use the + or - key to select the
maximum heat setpoint.
90°F
Cooling Temperature
Setpoint Limit
This feature allows you
to set a minimum cool
setpoint value. The setpoint
temperature cannot be
lowered below this value.
Use the + or - key to select the
minimum cool setpoint.
44°F
°F or °C
Select F for Fahrenheit
temperature read out or select
C for Celsius read out.
°F for Fahrenheit
°C for Celsius
F
12 or 24 Hour Clock
You can select either a 12 or
24 hour clock setting.
Use the + or - key to select 12 or
24 hour clock.
12
Fan Operation
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.
GAS - GS
or
ELEC - EL
Gas
Morning Recovery
This feature will start heating
early to bring the building
temperature to its programmed
setpoint by the beginning
of the time period - (WAKE,
OCCUPIED).
Use the + or - key to turn on or off. ON

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Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Swing Settings LCD will Show Adjustment Options Factory
Default
Settings
Program Options
You can configure this
thermostat to have 5+1+1
programming or
non-programmable.
Use the + or - key to select
5d for 5+1+1, or 0d for non-
programmable.
5d
Set Time (if using programming)
1 With system switch set to OFF, press the
MENU button.
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 STEP.
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 STEP.
7 Minutes are now flashing. Use the + or - key
to select current minutes.
8 Press DONE when completed.
Temporary and Permanent Hold
Feature (if using programming)
■ When cool or heat is turned on, the thermostat
will display HOLD and RUN SCHED on the left
of your screen when you press the + or - button.
■Temporary Hold
At this time if you do nothing, the
temperature will remain at this setpoint
temporarily until next time period.
■Permanent Hold
If you press the HOLD key on the left of your
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 Running Schedule
Press the RUN SCHED button on the left
of your screen to exit either temporary or
permanent hold.
Not all menu options may be
available. Filter Change Reminder
If your installing contractor has con󶈵gured
the thermostat to remind you when the air
󶈵lter needs to be changed, you will see FILT
in the display when your air 󶈵lter needs to be
changed.
Resetting the Filter Change
Reminder
When FILT reminder is displayed, you should
change your air 󶈵lter and reset the reminder by
holding down the second button from the top
left side of the thermostat for 3 seconds.
Set Program Schedule
All our programmable thermostats are shipped with
an energy saving pre-program. You can customize
this default program by following the chart on the
next page.
Your thermostat can be programmed to have all
the weekdays the same, a separate program for
Saturday, and a separate program for Sunday.
There are four time periods for each program
(WAKE, LEAVE, RETURN, SLEEP).

Viega LLC
585 Interlocken Blvd.
Broomfield, CO 80021
Phone [phone]
www.viega.us
Viega Programmable Thermostat User Guide
UG-HC 566440 1219 Programmable Thermostat (EN)
Factory Default Program
Day
of the
Week
Events Time Setpoint
Temp.
(HEAT)
Setpoint
Temp.
(COOL)
Weekday
Wake 6 AM 70°F (21°C) 75°F (24°C)
Leave 8 AM 62°F (17°C) 83°F (28°C)
Return 6 PM 70°F (21°C) 75°F (24°C)
Sleep 10 PM 62°F (17°C) 78°F (26°C)
Saturday
Wake 6 AM 70°F (21°C) 75°F (24°C)
Leave 8 AM 62°F (17°C) 83°F (28°C)
Return 6 PM 70°F (21°C) 75°F (24°C)
Sleep 10 PM 62°F (17°C) 78°F (26°C)
Sunday
Wake 6 AM 70°F (21°C) 75°F (24°C)
Leave 8 AM 62°F (17°C) 83°F (28°C)
Return 6 PM 70°F (21°C) 75°F (24°C)
Sleep 10 PM 62°F (17°C) 78°F (26°C)
Factory Default Program
Day of the
Week
Events Time Setpoint
Temperature
(HEAT) (COOL)
Weekday
Wake
Leave
Return
Sleep
Saturday
Wake
Leave
Return
Sleep
Sunday
Wake
Leave
Return
Sleep
You can use the table below to plan your
customized program schedule.
To customize your program schedule, follow
these steps:
Weekday
1 Select HEAT or COOL using the SYSTEM
key. You have to program heat and cool each
separately
2 Press the MENU button. (If menu does not
appear first press RUN SCHED.)
3 Press SET SCHED.
4 Time is flashing. Use the + or - key to make
your time selection for the weekday WAKE
time period.
5 Press NEXT STEP.
6 The setpoint temperature is flashing. Use the
+ or - key to make your setpoint selection for
the weekday wake period.
7 Press NEXT STEP.
8 Repeat steps 4 through 7 for weekday
LEAVE time period, for weekday RETURN
time period, and for weekday SLEEP time
period.
Saturday
9 Repeat steps 4 through 7 for Saturday WAKE
time period, for Saturday LEAVE time period,
for Saturday RETURN time period, and for
Saturday SLEEP time period.
Sunday
10 Repeat steps 4 through 7 for Sunday WAKE
time period, for Sunday LEAVE time period,
for Sunday RETURN time period, and for
Sunday SLEEP time period.
Monday-Friday is displayed and the
WAKE icon is shown. You are now
programming the wake time period for
the weekday setting.