Honeywell Home THR860S User manual

User Manual
THR860S Two Channel
7 Day Programmer
50051987002 Rev.A

This product must be correctly installed and configured to work properly. If you are
not experienced in electrical wiring, we recommend professional installation to avoid
possible personal injury or equipment damage.
DISCONNECT ELECTRIC POWER BEFORE INSTALLATION: Can cause electrical shock
or equipment damage.
DISPOSAL AND RECYCLING: Waste electrical products should not be disposed of
with household waste. Please recycle where these facilities exist. Check with your local
authority or retailer for recycling advice.

3
About your new programmer
Features .................................................................4
Quick reference to controls..........................5
Date/time settings............................................6
Operation and programming
Operating modes...............................................7
Cost-saving programme schedules.........8
To adjust programme schedules...............9
Special functions
Temporary schedule overrides.................10
Extra Hour ..........................................................11
Holiday mode ...................................................12
Advanced features .........................................13
Installation and setup
System installation........................................14
Wall bracket installation .....................1516
System wiring ...........................................1720
Installer setup...........................................2125
Appendix
Alternate programme schedules............25
In case of difficulty ........................................26
Contents

User Manual
4
The THR860SWE is designed to work with your existing thermostat, heating and hot water. It can
work automatically, or you can adjust it manually to maintain a comfortable indoor environment while
minimising energy use and costs associated with heating both your home and the hot water you
require.
Features
•Energy-saving design: Automatically activates or shuts down your heating and hot water up
to six times per day to fit your lifestyle while saving energy costs. Each day of the week can be
programmed separately (see pages 812).
•One-touch comfort control: Allows you to override programmed settings at any time by turning your
heating or hot water on or off — or by extending an “on” period by up to three hours.
•Holiday button: Turns off your heating and hot water for up to 99 days while you are away, then
resumes normal operation when you return (see page 12).
•Seasonal clock change: Automatically adjusts the clock for seasonal changes in the spring and
autumn to adjust for standard time or daylight savings time.
•Lifetime memory: Saves your customised settings indefinitely, even if the mains power supply fails.
About your new 2 channel programmer

5
RUN
—+
—+
12:34
PM
mon tue wed thu fri sat sun
30/12/2010
cont
once
auto
off
cont
once
auto
off
on 1
off 1
on 2
off 2
on 3
off 3
Quick reference
Press to extend
hot water
heating (see
page 11)
Line of
text area
Current
time Current
day
Operating
modes (see
page 7)
Daily programme
periods (see page
8)
Press to override hot
water (see page 10)
Light is on when
hot water heater
is on
Press to
programme next
day (see page 9)
Press to copy a
daily programme
schedule (see page
9)
“Holiday” button
(see page 12)
Press to extend
heating time (see
page 11)
Press to override
heating programme
(see page 10)
Light is on when
heating system is on
Slider (set to RUN
except during
programming)
Mode
buttons (see
page 7)
Press to change
time
or advance in menus
Press to save changes and
advance to next step
Remove cover to
use controls

Operation and Programming
6
Date/time settings
To change the date or time, set the slider to DAY/TIME.
Use the +or -buttons to set the correct day, then press the OK
button. Follow the same procedure to set month, year and time.
Date and time are set at the factory and should not need to be
changed unless you turn off the automatic daylight savings
feature (see pages 2123).
RUN
TIP: While setting the time, press and hold the +/- buttons to
change the clock time more rapidly.
30
12
mon tue wed thu fri sat sun
SET THE DAY
SET THE MONTH
Set to DAY/TIME
Press +or -to change
Press OK to save
31
IS DAY OK?

7
Operating modes
Press the MODE button repeatedly to select an operating mode.
You can set the Hot Water and Heating modes separately, by
pressing the appropriate button as shown at left. Both work the
same way:
Cont: Heating or Hot Water remains on continuously.
Auto: In this mode the programmer follows a daily schedule for
the Hot Water or Heating, turning each on and off at preset times
during the day (see page 8).
Once: In this mode the Heating or Hot Water is turned on at the
first programmed “On” time of the day, and remains on until the
last programmed “Off” time (see page 8).
Off: Heating or Hot Water remains off at all times.
HOT WATER HEATING
12:34
PM
mon tue wed thu fri sat sun
30/12/2010
cont
once
auto
off
cont
once
auto
off
on 1
off 1
on 2
off 2
on 3
off 3
Press to
change
hot water
operating
mode
Press to
change
heating
operating
mode

Operation and Programming
8
Cost-saving programme schedules
MondayFriday ON 1 [off 1] ON 2 [off 2] ON 3 [off 3]
Heating 6:30am 8:30am 1:00pm 4:30pm
Hot water 6:30am 8:30am 1:00pm 4:30pm
SaturdaySunday ON 1 [off 1] ON 2 [off 2] ON 3 [off 3]
Heating 6:30am 9:30am 1:00pm 4:30pm
Hot water 6:30am 9:30am 1:00pm 4:30pm
The programmer is preset at the factory to turn off your home heating and hot water when they’re less
likely to be needed. The preset schedules are shown below. To change them, see pages 912. (See also
two alternate schedules on page 25).
To run this schedule (as shown below, or as you’ve modified it), leave the MODE buttons set to Auto.
Y ou can make temporary adjustments at any time (without changing the schedule) by pressing the
EXTRA HOUR or OVERRIDE buttons (see pages 1011).
Default
on/off times
(Schedule A)
TIP: To review your schedule quickly, move the slider to Hot Water or Heating, then press
the OK button repeatedly to see each on/off time period.
RUN

9
To adjust programme schedules
The Hot Water and Heating schedules must be programmed
independently, but the procedure is the same for both.
1 Move slider to HOT WATER or HEATINg, then press +or -to
adjust the “On” time for Period 1 as shown at left.
2 Press OK to save, then press +or -to adjust the “Off” time for
Period 1. Repeat for all time periods.
3 After all Monday time periods are set, press the NEXT DAY
button to adjust settings for Tuesday. Repeat for all other days.
To stop programming at any time, move slider to RUN.
SHORTCUT: While programming, press the COPY DAY button to
copy settings for the current day and apply them to other days. For
example, you can apply Monday settings to other days of the week.
After copying, press the NEXT DAY button to select a target day, then
press OK.
RUN
Set to HOT WATER
or HEATINg
6:30
AM
6:40
AM
8:30
AM
mon tue wed thu fri sat sun
mon tue wed thu fri sat sun
mon tue wed thu fri sat sun
SET ON-TIME 1
ON-TIME 1 OK?
SET OFF-TIME 1
on 1
off 1
on 2
off 2
on 3
off 3
Press +or -to change time
Press OK
TIP: To delete an unwanted time period, set identical times for the
“On” and “Off” periods.

Special Functions
10
Temporary schedule overrides
The OVERRIDE buttons work like a simple “on/off” switch. If you
press the button when the system is on, it will turn off. If off, it
will turn on. The Hot Water and Heating override buttons work
independently. Neither affects the other system.
These buttons work only when the MODE is set to Auto or Once
(see page 7).
This change is temporary. It does not change the daily
programme schedule, which will resume at the next programmed
“On” or “Off” time period.
NOTE: See also temporary overrides for extra hours or holidays (see
pages 1112).
Press to turn system on or off
Green light shows system
status (on or off)
12:34
PM
mon tue wed thu fri sat sun
SYSTEM OVERRIDE
cont
once
auto
off
cont
once
auto
off
on 1
off 1
on 2
off 2
on 3
off 3