Smart Temp 42 157 Owner's Manual - Smart Zone
LCD Back light (
INDIGLO
)
This thermostat is fitted with a electroluminescent lamp which
activates for easy viewing in the dark. When any button or switch is
pressed the display is illuminated. This back light will remain on for
5 seconds after the last button is pressed.
Please note:
If the thermostat is in a low battery condition, the
back light will not operate. It is important to
replace the batteries with two new “AA” Alkaline
batteries when a low battery condition exists.
If the ambient noise level is very low, a quite high pitched sound
may be heard when the back light is on. This is a normal sound
made by the thermostat when the back light is on and is not a
malfunction.
Error Messages
If the thermostat is unable to control your system
due to an unexpected problem the 42-157
thermostat will enter “Error mode”. In this condition
the thermostat flashed “Err” on the LCD
(fig7)
.
In the extremely unlikely event that your thermostat
enters this mode it is recommended that you immediately replace
the thermostat batteries with a new set of “AA” Alkaline batteries
(even if you have just replaced the batteries).
Next, using a paperclip press the reset button which can be found
directly under the button. You will now need to set the clock
and re program the thermostat to ensure correct thermostat
operation.
DAY/TIME
Fig 7
Troubleshooting
No Display.
1. Check batteries.
2. Press reset and reprogram.
Display Dims.
1. Replace Batteries.
No Back light
1. Replace Batteries.
Program does not change at your desired Setting.
1.Check the time is set properly, note the AM / PM indicator.
2.Check that the thermostat is NOT in Hold mode.
3.Check that the thermostat shows the correct day.
Heating or Cooling does not go On or OFF.
1.Check that the function switch is in the correct position.
2.Some systems require a delay between switching modes.
3.Check circuit breakers (fuses) to equipment.
4.Make sure pilot light (if applicable) on furnace is lit.
5.Replace Batteries in thermostat.
Erratic Display.
1.Replace batteries.
Thermostat permanently displays “HI”, “LO” or “Err”.
1. Replace Batteries and reset.
2. Replace thermostat.
ls A ai
f om S ar
A o v lable r
m t
Temp
Smart Zone
Climate System Zoning Solution
Each zone controls the system independently.
The
Smart Zone
will call for heating or cooling, regardless of the
other zones requirements. This is almost like having two separate
systems.
(Note, Both heating & cooling can’t run at the same time,)
Each Zone has its own timer, sensor and set temperature.
Because the
Smart Zone
is like two separate systems, the
temperature is measured in the zone being heated or cooled.
Further, each zone has its own time clock, therefore automatically
turning on the heating or cooling when you have programmed it!
Divide your home into Living and Sleeping Zones.
Using the
Smart Zone
you are able to heat or cool the living zones
during the day, and the sleeping zones during the night. Save
energy by only heating or cooling the zones your occupying.
Have two separate temperature Zones
As the
Smart Zone
is like having two completely independent
heating or cooling systems, each zone can set separate comfort
levels. Therefore eliminating the problem of the upstairs
overheating while maintaining a comfortable temperature
downstairs.
Ideal for Shared accommodation.
If you have a family member living with you, by zoning their area
of the home they have control over their comfort level while
leaving your settings unaffected. This also saves on energy costs as
you only heat or cool the occupied area of the home.
A home climate zoning system
can reduce energy costs by up to 50%
while improving home comfort.
C e n t r a l
H e a t i n g
U n i t
An example of what the system does
C e n t r a l
H e a t i n g
U n i t
Typical 2 story
Gas Centrally
Heated Home
Zoned Gas Centrally
Heated home.
Single Thermostat
Downstairs Thermostat
Upstairs Thermostat
Zone Flow
Controller
Zone Flow
Controller
Upstairs temp 27Deg C
Downstairs Temp 21 Deg C
Upstairs Temp 21 Deg C
Upstairs Temp 21 Deg C
Downstairs Temp 21 Deg C
The
Smart Zone
control board maintains the correct temperature in
the zoned home by controlling the gas central heating unit and
opening or closing the appropriate flow control damper(s) to the
zone(s) that require heating.
This ensures the correct temperature is maintained throughout your
entire home.
The