Comfort-stat CP1717 User Manual download pdf

Digital Thermostat

heat

off

cool

system

auto

fan

Owners Manual

Mode:CP1717

Your new thermostat will provide years of reliable service. Using this

digital thermostat will provide more uniform comfort in your home through

the seasons. Thank you for buying the 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:

y Gas – Standing Pilot y Oil – Fired Furnace

y Gas – Electronic Ignition y Single Stage Heat Pumps – with no

y Gas – Fired Boilers auxiliary heat

y Gas – Millivolt Systems y Electric Furnace

y Oil – Fired Boilers y Electric Air Conditioning

This thermostat will NOT control multistage heat pumps or 110/220V

baseboard electric heating systems.

2. Temperature Range

This thermostat can be set 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 minute delay after shutting off the compressor

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 over 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 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 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.

FEATURES

Structure of thermostat and explanation for the keypads

OPERATION

Start-up

The LCD will show the factory default

display of 70˚F (21˚C) when batteries are

first installed,. The temperature will update

after a few seconds.

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 wallplate,

slide the System Selector to the OFF position to prevent the possibility of a

rapid system On – OFF.

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

warm-up 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.

Review Current Set Temperature

y Press either the up or down key once to see the Set Temperature.

The factory default is 68˚F (20˚C) when started with the System Switch Off

or Heat, and 78˚F (26˚C) when started with the System Switch on Cool.

Setting New Temperature

y Press either the up or down once and

display the set temperature.

y Press either up or down again to change

to your desired Set Temperature. Hold the

key down for over 2 seconds to fast

advance the Set Temperature.

The display will return to the normal room temperature after the keys have

been released for 5 seconds.

Filter Monitor

The thermostat counts the number of hours

your system’s filter has been in use. To

maximize your system’s performance and

energy efficiency, change or clean your

filter regularly. When the total system run

time for heat and cool reaches 400 hours, the Filter Change Indicator will

flash as a reminder to check your system’s filter.

After changing or cleaning the system filter, press and hold the Filter key

for 3 seconds. The display will blink, and the counter will be reset to zero.

Note: Pressing the Filter key at any time for less than 3 seconds will cause

the Filter Change Indicator to appear on the LCD. This is only to confirm

key operation, and the counter is not affected unless the key is held for

greater than 3 seconds.

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.

y Press and hold BOTH up and down keys for three

seconds. SPAN will be displayed on the LCD.

y Press up to raise the Span to 3. This setting

INCREASES to cycle time by allowing your system

to run LONGER.

y Press down 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, and can be

changed in any System Switch position.

When batteries are installed in the thermostat, the Span is reset back to

setting 2.

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 7 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 two-stage lower battery

warning system. When the batteries are first

detected to be weak, the first stage low battery

warning is indicated by battery symbol 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 week for normal operation, the thermostat enters

the second stage low battery warning which shuts down the

thermostat. In this condition, battery symbol flashes alone on the display,

and the thermostat will turn your system off. Your system will remain

shut-off 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

operating .

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. Next, 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.

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 Cut-Off will have no effect.

Mechanical Heat Backup

This thermostat includes a bimetal switch that will automatically turn on the

Heat when the temperature reaches about 41˚F (5˚C).WARNING: This

switch only activates the Heating terminal (W). The system itself must be

capable of automatically turning the Fan On. Without normal Fan operation,

severe damage to the heating system could result.

INSTALLATION

What You Need

This thermostat includes two #8 slotted screws and two wall anchors for

mounting. To install your thermostat, you should have the following tools

and materials.

y Slotted Screwdriver(s)

y Small Philips screwdriver

y Hammer

y Electric drill and 3/16” bit

y Two 1.5V (AA) size alkaline batteries (included)

Remove Old Thermostat

CAUTION: Do not remove any wiring from existing thermostat before

reading the instructions carefully. Wires must be labeled prior to

removal.

INPORTANT! Turn off the power to the furnace at the main power

panel or at the furnace.

Remove existing thermostat cover and thermostat. Some thermostats will

have screws or other locking devices that must first be removed. Once the

wall mounting plate is exposed, look for wires. If wires are not visible, they

may be connected to the back of the wallplate. Again, look for screws, tabs,

etc. Some models have doors that open to expose wires and mounting

screws. See Figure 1.

Typical Home Thermostats

Wall mounting Plate Thermostat Cover

Filt

Ind

er Change

icator:Flashes

en filter needs

be checked.

LCD Display:

Shows Room

Temperature,Set

Temperature,and

other feature

information as

required.

Light:Backlight

display

automatically

with each key

press for easy

viewing.

Low Battery

Indicator:

Flashes when

batteries need

to be replaced.

Front Door:

Battery cover

Open with one

finger from top.

Figure 1

Wiring Labeling

y Each wire coming from the wall to the existing thermostat is connected to

a terminal point on that thermostat. Each of these terminal points is usually

marked with a code latter as shown in Table A below.

y Note that this thermostat has multiple function terminals that allow

Single-Stage Heat Pump capability. Standard systems use: Rh, Rc, G, Y, W.

[Single-Stage Heat Pumps use: R, Y, G, and O or B.] Table A below shows

Wall mounting Plate Thermostat Cover

COOL

OFF

HEAT

AUTO

SYSTEM

FAN

swi

Heat,Cool,

and Off.

an Switch:

an switch

r Automatic

ontinuous

an operation.

Filter Key:

Resets the

filter change

counter to zero.

Up and Down Keys:

Keys for changing

the Temperature

setting. Also used

for adjusting the

Span.

stem

itch:

lector

tch for

Battery

Compartment:

Front access allows

easy insertion of

two AA 1.5V

batteries.

or C

Front Door:

Cover keys Open with

one finger from left or right.

1 2

Summary of Contents

Page 1 - Digital Thermostat

Digital Thermostat heat offcoolsystemonautofanOwners Manual Mode:CP1717 Your new thermostat will provide years of reliable service.

Page 2 - Terminals. See Table A

the multiple functions of the terminals. Use the terminals that match your system. y The number of wires in your system can be as few as two (for heat

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Comfort-stat CP1717 User Manual

Browse online or download User Manual for Water boiler Comfort-stat CP1717. Comfort Stat CP1717 User Manual

Summary of Contents

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