Comfort Stat CP1819 - Manual

day/time
program
PROGRAMMABLE THERMOSTAT
Owners Manual
Model : CP1819
L
Congratulations!
Your new thermostat will provide years of reliable service. By saving energy, your
thermostat will pay for itself during its first season of use. Thanks you for buying our
product!
Please read this manual for complete instructions on installing and operating your
thermostat. If you require further assistance, please feel free to contact us
IMPORTANT INFORMATION
1. This thermostat is designed to work on the following systems:
Ÿ Gas – Standing Pilot
Ÿ Oil – Fired Furnace
Ÿ Gas – Electronic Ignition Ÿ Single Stage Heat Pumps –
with no auxiliary heat
Ÿ Gas – Fired Boilers Ÿ Electric Air Conditioning
Ÿ Gas – Millivolt Systems Ÿ Electric Furnace
Ÿ Oil – Fired Boilers
This thermostat will NOT control multistage heat pumps or 110/220V baseboard
electric heating systems.
2. Temperature Range
This thermostat can be programmed between 45˚F and 95˚F (7˚C and 35˚C). However,
it will display room temperatures from 30˚F to 99˚F (0˚C and 37˚C). “HI” will be
displayed if the temperature is higher than 99˚F (37˚C), and “LO” will be displayed if
the temperature is lower than 30˚F (0˚C).
This thermostat will automatically cutoff in Heat mode if the temperature rises above
95˚F (35˚C), and automatically cutoff in Cool mode if the temperature drops below
45˚F (7˚C).
3. Compressor Protection
This thermostat provides a 4 minutes delay after shutting off the cooling system before
it can be restarted. This feature will prevent damage to your compressor caused by
rapid cycling. It does not prevent a rapid compressor restart due to short power
outages.
4. Battery Warning
Two fresh AA alkaline batteries should provide well about one year of service. However,
when the batteries become drained, the Low Battery Indicator will flash on the display.
When this message occurs, install new alkaline batteries. You have approximately 1
minute to change the batteries and keep the thermostat’s clock and program settings.
Once the batteries have become too low to ensure proper operation, your system will
be turned off, and the display will be cleared except for flashing Low Battery Indicator
on the LCD display.
CAUTION: When only the Low Battery icon flashes on the display,
the thermostat is shut down, and your system will no longer operate.
In this condition, there is no temperature control of your dwelling.
NOTE: The backlight will not function when the thermostat is in low battery condition.
NOTE: If you plan to be away from the premises over 30 days, we recommend that
you replace the old batteries with new alkaline batteries prior to leaving.
5.Power supply
The thermostat shall be powered by 24 VAC and with batteries as backup.
FEATURES
Structure of thermostat and explanation for the keypads
h ea t of f coo l on au to
da y/ time filter
p ro gr am hol d
syst em f an
LCD Display:Shows
Time,Day,Temperature,
Program Number,and
other feature information
as required.
L
Backlight key
Battery Compartment:
Front access allows
easy insertion of two
AA 1.5V batteries. Up and Down Key:Key for
changing the Temperature
setting. Also used for increasing
and decreasing selections in the
Time,Program,and Span
functions.
/r e tur n
Fan Switch: Fan
switch for Automatic
or Continuous fan
operation.
System Switch:
Selector switch for
Heat,Cool,and Off.
Day/Time Key:
Used for entering
the Clock setting
mode.Use with the
Up and Down keys
to set the time and day.
Filter Key:Resets
filter change
counter to zero.
Program Key: Used
for entering and modifying
Programs. Use with the Up
and Down keys to set
times and temperatures.
Press when in Clock setting
mode to select between 12
and 24 hour clock modes.
Hold/Return Key:Used for
setting a permanent(vacation)
hold,and for returning to the
normal display from Day &
Time setting, Programming,or
Span setting modes.
Front Door:
Battery cover
Open with one
finger from top.
Front Door: Cover keys Open with one finger from left or right.
OPERATION
Setting Day and Time
Ÿ The LCD will show this information when
batteries are first installed. The temperature will
update after a few seconds.
Ÿ During time and day setting mode, the
temperature and program displays will go blank.
Ÿ Examples: Set the Thermostat to the current time of 2:16 pm on Saturday.
Refer to the Steps below.
STEP 1:
Ÿ Press to enter time and day setting mode. The
current hour and the AM/PM indicator will be
flashing.
Ÿ Press up or down to change the Hour up or down
to the current hour.
Note the AM/PM indicator, as the display will change at 12AM and 12PM.
STEP 2:
Ÿ Press again to change from hour setting to
minute setting. The current minute will be flashing.
Ÿ Press up or down to change the Minute up or
down to the current minute.
STEP 3:
Ÿ Press again to change from minute setting to day
setting. The current days will be flashing.
Ÿ Press up or down to change the Day up or down
to the current day.
STEP 4:
Ÿ Press again to change back to the normal display.
NOTE: You may press /return at any time during Day and Time setting to
return to the normal display.
12Hr. / 24 Hr. Time Format
Your thermostat is set from the factory in normal 12 (AM/PM) time format. To change to
24 hour (military) time, press during time and day setting mode to
toggle between the 12 hour and 24 hour formats. The AM / PM indicator will not be
displayed in 24 hour mode. Both the current time and all programs will automatically
change to the selected format.
PROGRAMMING
The following time and temperature settings are pre­programmed into the thermostat:
Temperature in F˚ (C˚)
Program Number Time Heat Cool
1 6:00 am 68˚F(20˚C) 78˚F(26˚C)
2 8:00 am 60˚F(16˚C) 85˚F(29˚C)
3 4:00 pm 68˚F(20˚C) 78˚F(26˚C)
4 10:00 pm 60˚F(16˚C) 82˚F(28˚C)
Ÿ All 7 days of the week have the same default programs.
Personal Program Schedule
Ÿ You can revise the factory programs to match your own schedule. Use this Personal
Program Schedule to determine which times and temperature settings match your
comfort and energy saving requirements. Use a pencil so you can revise your records
each time you change your program settings.
Heating
Day Program 1 Program 2 Program 3 Program 4
Monday –
Friday
Time
Temp
Time
Temp
Time
Temp
Time
Temp
Saturday –
Sunday
Time
Temp
Time
Temp
Time
Temp
Time
Temp
Cooling
Day Program 1 Program 2 Program 3 Program 4
Monday –
Friday
Time
Temp
Time
Temp
Time
Temp
Time
Temp
Saturday –
Sunday
Time
Temp
Time
Temp
Time
Temp
Time
Temp
Revising Programs
Ÿ Familiarize yourself with manually changing programs, so that you can easily modify
the programs as your comfort needs change. Follow the steps below to change the
program times and temperature.
NOTE:
1) The program time can be set in 10­minute increments.
2) The program temperature can be set in increments of 1˚F (1˚C).
3) After 15 seconds without a key press, the thermostat will return to normal display
mode.
4) When setting the program time, note the AM / PM indicator.
STEP 1:
ŸSlide the System Switch to the HEAT or COOL position to program the
corresponding system.
NOTE: if the System Switch is in the off position,
the last position used will be programmed.
STEP 2:
Ÿ Press to enter program mode. HEAT or COOL will be displayed on the
LCD.
STEP 3:
Ÿ The Program hour and AM or PM indicator are
flashing. Press to change the hour.
STEP 4:
Ÿ Press again to change to the minute position. The
current minute will be flashing.
Ÿ Press to change the minute.
STEP 5:
Ÿ Press again to change to the program temperature. The
current program will be flashing.
Ÿ Press to change the temperature.
STEP 6:
Ÿ Press again to move to the next program number.
Ÿ Repeat Step 3 through 5 to change the remaining Weekday and
Weekend programs. (There are a total of 8 programs)
Ÿ After cycling through all 8 programs, press again to return the display to
normal.
Ÿ Press at any time to exit the program Mode.
Reviewing Programs
To review your program settings, press repeatedly to cycle through
the programs. You can also make changes at any time.
System selector Switch
The System Selector switch on the front of the thermostat
determines the operating mode of the thermostat. You may select
COOL, OFF, HEAT.
NOTE: Anytime you install or remove the thermostat from the wall plate, slide the
System Selector to the OFF position to prevent the possibility of a rapid system
On­Off.
Fan switch
The Fan switch should normally be located in the AUTO position.
The Fan will be turned on along with normal operation of your
system. In a normal gas or oil furnace, the Fan will be turned on by
your furnace after its warm­up delay. For electric heat, air conditioning, and heat pump
operation, the Fan will turn on with the system. To run the Fan on continuously, slide
the Fan switch to the ON position.
Temporary Manual Override
To temporarily change the current set temperature without affecting your
program:
Ÿ Press to change to your desired Set Temperature.
Hold the key for 2 seconds to fast­advance the Set
Temperature.
Ÿ Press to return to normal mode, or wait 5 seconds
for it to return automatically.
Ÿ The current program number will flash to signify the Temporary Override.
Ÿ At the next program change time, the Temporary Override is
cancelled,and the next program temperature becomes the
setpoint temperature.
Ÿ Press to confirm the Temporary
Override,
Permanent Override or a Designated Day Override
To hold your Manual Override for vacation or Until a
Designated Day.
Ÿ Press to make the current program
temperature the HOLD temperature.
HOLD will be displayed on the LCD, and the Program number
will disappear.
Ÿ Follow the Temporary Manual Override instructions above to change the
Permanent Manual Override temperature.
Ÿ You can confirm the held set temperature by pressing for less than 1
second.
Ÿ Press again. Hold day will be displayed
on the lcd and the clock will disappear.
ŸPress Day key to add override days. Press
Program key to reduce override days.
Ÿ Follow the Temporary a Designated Day
Override instructions above to change the Permanent Manual Override
temperature.
To end Override:
ŸUnder Permanent Override Press hold/return key twice. Under a Designated Day
Override press the hold/return once. The thermostat will return
to the current program, and the HOLD display will be canceled.
Filter Change Indicator
Your thermostat also keeps a record of the number of hours your filter has been in use.
To Maximize your system’s performance and energy efficiency, change or clean your
filter regularly.
Ÿ When the total system runtime for heat and cool reaches
400 hours, “FILT” will alternate with the current
time on the LCD display to remind you need
clean or change your system’s filter. ”Filt” will continue to flash
until the counter is set back to zero.
ŸPress to review total filter usage. The display will blink ”FILT”, then show the Filter
Monitor counter. After 15 seconds, the display will return to normal mode
In this example, the counter is at 410 Hours,
26Minutes.
ŸTo reset the Filter Monitor counter, depress Filter key for 3
seconds. the display will blink,and the counter will be reset to
zero.
SPAN Setting
Your thermostat is set at the factory to cycle at 2˚F (1˚C) above and below the set
temperature. (Span = 2) This setting has been designed to provide a comfortable room
temperature under most all conditions. However, if you find your system
cycling too fast or too slow, then the Span can be adjusted to modify the
cycle time.
Ÿ Press and hold BOTH (up and down keys) for
three seconds. The display will flash, and SPAN
will be displayed on the LCD.
Ÿ Press to raise the Span to 3. This setting
INCREASES to cycle time by allowing your system
to run LONGER.
Ÿ Press to lower the Span to 1. This setting DECREASES the cycle time
by causing your system to run SHORTER.
The Span settings remain the same for both HEAT and COOL. The Span can be
changed at any time, and is independent of program times or temperatures.
Backlighting
Your thermostat has an electroluminescent lamp that backlights the display for easy
viewing in the dark.
When any key is pressed , the display is illuminated.
The display will remain illuminated for 8 seconds after the last key is pressed. This
allows the light to stay on if you need to operate several keys.
Note: If the thermostat is in Low Battery warning condition, the backlight will not
operate. Replace with 2 new AA alkaline batteries to restore the Backlight function.
Low Battery Warning
Your thermostat has a two­stage lower battery warning system.
When the batteries are first detected to be weak, the first stage
low battery warning is indicated by “BATT” flashing on the LCD
display. At your earliest convenience, you need to replace the
batteries with 2 new AA alkaline batteries.
When the batteries become too weak for normal operation, the
thermostat enters the second stage low battery warning which
shuts down the thermostat. In this condition, “BATT” flashes
alone on the display, and the thermostat will turn your system off.
Your system will remain shut­off until the batteries are replaced.
Note: The thermostat will still keep the current Set Temperature and Filter run time in
memory until new batteries are installed. After confirming that new batteries have been
inserted, the thermostat will return to normal operation.
Auto Recovery
Auto Recovery calculates how early to turn you system back on, so that the room
temperature is already comfortable by the start of the comfort temperature program
period. Auto Recovery work’s in both Heat and Cool modes.
ŸWhen the thermostat is in Auto Recovery mode, the display will
alternate “RECO” with time, and the program indicator will flash.
ŸAuto Recovery can be disabled by sliding the Recovery switch
on the circuit board to disable.
ŸAuto Recovery will not operate if Permanent hold or Temporary
hold is in operation.
ŸAuto Recovery can be canceled manually if Hold/RETURN is pressed during the
recovery process.
ŸAuto Recovery will be canceled and change to next period.
Error Mode
If the thermostat is unable to control your system due to an
unexpected battery problem, the thermostat will enter Error Mode.
In this condition, the thermostat flashes “E1”or “E2”on the LCD
display, and shuts off your system. To correct this problem,
replace the batteries with 2 new AA alkaline batteries, even if you
have recently replaced them. Move the battery out hold any key then place the battery
again. You will need to reprogram your thermostat and confirm normal operation.
If Error Mode returns, please call us for further information.
Lcd display information Lcd display information
E1 Sensor Error E2 System switch
Auto Cut Off
Your thermostat will automatically cutoff in Heat mode if the room temperature rises
above 95˚F (35˚C). It will cutoff in Cool mode if the room temperature drops below 45˚F
(7˚C).
Note: that if your system has malfunctioned and no longer responds to thermostat
controls, the Auto Cut­Off will have no effect.
day/time
day/time
hold /return
heat off cool
system
p ro g r a m
day/time
day/time
da y/tim e
program
p ro g r a m
p ro g r a m
heat off cool
system
on auto
fan
hold /return
filter
p ro g r a m
p r o g r a m
M
H
program
hold
hold /return
hold /return
hold /return
hold /return
filter