Comfort Stat CP2801 User Manual

No outputDigital Thermostat Owners Manual

Mode:CP2801

LCD Display:Shows Time,Day,Temperature, and other feature information as required.

Measures and displays heating and cooling system operating time for Today, Yesterday,This Week,Last Week,or Total.

Up and Down Key:Key for changing the Temperature setting. Also used for increasing and decreasing selections in the

functions.

Time,and Span

Backlight key

Battery Compartment: Front access allows easy insertion of two AA 1.5V batteries.

Front Door: Battery cover Open with one finger from top.

For entering Time

EMER Mode

Returns display to current time and temperature.

TIME ENER

EMER

RUN

/return

system

cool

heat off

Front Door: Cover keys Open with

Fan Switch: Fan

fan

switch for Automatic or Continuous fan

auto

operation.

System Switch: Selector switch for Heat,Cool,and Off.

one finger from left or right.

FEATURES

Structure of thermostat and explanation for the keypads

We are pleased you have selected one of our broad line of wall thermostat.

Our products are manufactured to high quality standards and are designed

for years of service.

For entering Time

EMER Mode

Measures and displays heating and cooling system operating time for Today, Yesterday,This Week,Last

ENER

TIME

EMER

Week,or Total.By monitoring your energy usage,you can

RUN

program the thermostat to optimize energy savings.

Returns display to current

time and temperature.

Read This Before Installing Thermostat

OPERATION

YOUR THERMOSTAT REPLACES

Description CP2801

Heat Pump (No Aux. or Emergency Heat) Yes

Heat Pump (with Aux. or Emergency Heat) Yes

Standard Heat & Cooling Systems Yes

Two Stage Heat & One Stage Cool Yes

Standard Heat Only Systems Yes

Millivolt Heat Only Systems– Floor or Wall

Furnaces

Standard Central Air Conditioning Yes

Gas or Oil Heat Yes

Electric Furnace Yes

Hydronic (Hot Water) Zone Heat-2 Wires Yes

Hydronic (Hot Water) Zone Heat–3 Wires No

This Thermostat will NOT control 110/220Volt systems.

IMPORTANT

2, Read the entire installation section of this Owner’s Manual thoroughly

before you begin to install or operate your Thermostat.

REMOVE THE MYLAR LABEL FORM THE LCD DISPLAY WINDOW.

INSTALLATION 3, All installation is normally performed at your thermostat. COMPRESSOR PROTECTION

4，The thermostat provides a 4 minutes delay after shutting of the heating or

cooling system before it can be restarted. This feature will prevent damage

to your compressor caused by rapid cycling. Note that this delay also applies

to the heating system control. It does not provide a delay when there are

power outages.you can select the function on or off at the configuration.

TEMPERATURE RANGE

5,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).

NOTE: The thermostat will automatically change to the Cool mode if the

thermostat measure a temperature over 99˚F(37℃), ”HI” will be displayed on

the LCD, and the Cooling system will turn On. Similarly, the thermostat will

automatically change to the Heat mode if the temperature is below 32˚F(0℃).

and ”LO” will be displayed on the LCD, and the Heating system will turn On.

POWER FAILURE

6， Whenever the main power is interrupted or fails, the battery power

retains and current time. This thermostat has permanent memory, although

you will have to reset your clock when there are power outages.

POWER SUPPLY

7，The thermostat shall be powered by 24 VAC and with batteries as backup.

BATTERY WARNING

8， Fresh alkaline batteries should provide about one year of service.

However, when the batteries become drained, “BATT” will alternate on the

display with the current time. When this message occurs, install 2 new AA

batteries, You have approximately 1 minute to change the batteries and keep

thermostat’s clock. 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 “BATT” flashing on the LCD display. CAUTION: Once only the “BATT” only display occurs, 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.

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.

■ Slotted Screwdriver(s) ■ Small Philips screwdriver ■ Hammer

Ye s

■ Electric drill and 3/16” bit ■ Two1.5V (AA) size alkaline batteries

(included)

CAUTION: To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

Before removing wires from old thermostat's switching subbase, label each

wire with the terminal designation it was removed from.

1. Shut off electricity at the main fuse box until installation is complete.

Ensure that electrical power is disconnected.

2. Remove Old Thermostat: A standard heat/cool thermostat consists of

three basic parts:

a. The cover, which may be either a snap-on or hinge type.

b. The base, which is removed by loosening all captive screws.

c. The switching subbase, which is removed by unscrewing the mounting

screws that hold it on the wall or adaptor plate.

3. Remove the front cover of the old thermostat. With wires still attached,

remove wall plate from the wall. If the old thermostat has a wall mounting

plate, remove the thermostat and the wall mounting plate as an assembly.

4. Identify each wire attached to the old thermostat.

5. Disconnect the wires from the old thermostat one at a time. DO NOT LET

WIRES FALL BACK INTO THE WALL.

6. Install new thermostat using the following procedures.

WARNING Do not use on circuits exceeding specified voltage. Higher voltage will damage control and could cause shock or fire hazard. Do not shor t out terminals on gas valve or primary control to test. Short or incorre ct wiring will damage thermostat and could cause personal injury and/or property damage.

Selector Switches

Electric/Gas Switch (Fan Option)

Elec-Gas Switch

Figure 1. Electric/Gas Switch (Fan Option)

This thermostat is configured from the factory to operate a heat/ cool, fossil

fuel (gas, oil, etc.), forced air system. It is configured correctly for any system

that DOES NOT require the thermostat to energize the fan on a call for heat.

If you system is an electric heat or heat-pump system that requires the

thermostat to turn on the fan on a call for heat, locate the ELEC/GAS switch

on the back of the thermostat (see fig. 1) and switch it to the ELEC position.

This will allow the thermostat to energize the fan immediately on a call for

heat. If you are unsure if the heating/ cooling system requires the thermostat

to control the fan, contact a qualified heating and air conditioning service

person. When the thermostat is configured for Heat Pump, the thermostat

will always power the circulator fan on a call for heat in the HEAT mode. The

ELEC/GAS switch must be set to match the type of Auxiliary heat your

system uses for proper operation in the EMERgency mode.

All wiring diagrams are for typical systems only. Refer to equipment

manufacturers’ instructions for specific system wiring information.

Attach Thermostat Base to Wall

1. Remove the packing material from the thermostat. Gently pull the cover

straight off the base. Forcing or prying on the thermostat will cause damage

to the unit.

2. Connect wires beneath terminal screws on base using appropriate wiring

schematic (see figs. 2 through 4).

3. Place base over hole in wall and mark mounting hole locations on wall

using base as a template.

4. Move base out of the way. Drill mounting holes.

5. Fasten base loosely to wall, as shown in fig. 1, using two mounting screws.

Place a level against bottom of base, adjust until level, and then tighten

screws. (Leveling is for appearance only and will not affect thermostat

operation.) If you are using existing mounting holes, or if holes drilled are too

large and do not allow you to tighten base snugly, use plastic screw anchors

to secure subbase.

6. Push excess wire into wall and plug hole with a fireresistant material (such

as fiberglass insulation) to prevent drafts from affecting thermostat operation.

Mounting Hole

Figure 2. Thermostat base

Re v e r s i n g Val ve Energi zed i n Co o l Mode

Re v e r s i n g Valve Ener gi zed i n Heat, Off, Emer gency Mode

Co mpr essor Cont act or

Figure 3 Typical wiring diagram for single transformer heat pump

Fan Rel ay

systems

GAS

ELEC

Mounting Hole

Aux Heat Re l ay

E/ W1

Emer gency Heat Re l ay

＊

SYSTEM MONITOR SWITCH

THERMOSTAT

SYSTEM

TRANSFORMER

( Cl ass Cur r ent

Li mited)

24 VAC

Ho t 120 VAC

Neut r al

CUT A ND TA PE OFF!

HOT

120 VAC

NEUTRAL

E/ W1

Emergency Heat Relay

＊

SYSTEM MONITOR SWITCH

Reversing

Valve

Energized in

Cool Mode

24 VAC

Heat, Off, Emergency Mode

Compressor Contactor

Fan Relay

Aux Heat Relay

TWO COMM ONS MUST BE J UM PERED TOG ETHER!

Limit or Safety Switches

24 VAC

THERMOSTAT

SYSTEM

TRANSFORMER

Current Limited)

(Class

Hot 120 VAC Neutral

Figure 4. Typical wiring diagram for two transformer heat pump systems with NO safety circuits

Reversing Valve Energized in Cool Mode

Reversing Valve Energized in Heat, Off, Emergency Mode

Compressor Contactor

Fan Relay

E/W 1

Emergency Heat

Aux

Relay Heat Relay

TWO COMMONS MUST BE JUM PERED T OGETHER!

＊

SYSTEM MONITOR SWITCH

COMMON

Limit or Safety Switches

24VAC ACCESSORY RELAY N.O. CONTA CY

Limit or Safety Switches

THERMOSTAT

SYSTEM

24VAC

Auxiliary Heating Transformer

COMMON

(Class Current Limited)

24 VAC

Heat Pump Transformer (Class Current Limited)

Limit or Safety Switches

120VAC

NOT E

The accessory relay scheme is required when safety circuits ez ist in both syste ms

Limit or Safety Switches

120 VAC

HOT

NEUTRAL

HOT

NEUTRAL

Figure 5. Typical wiring diagram for two transformer heat pump systems with safety circuits in BOTH systems Heat Pump Terminal Outputs

Refer to equipment manufacturers' instructions for specific system wiring

information. You can configure the thermostat for use with the following heat

pump system types: HEAT PUMP TYPE 1 1. Single stage compressor

system; gas or electric backup. This thermostat is designed to operate a

single-transformer system. If you have a two-transformer system, cut and

tape off one transformer. If transformer safety circuits are in only one of the

systems, remove the transformer of the system with NO safety circuits. If

required, replace remaining transformer with a 75VA Class II transformer.

After disconnecting one transformer, the two commons must be jumpered

together.

Use the terminal output information below to help you wire the thermostat

properly for your heat pump system. After wiring, see CONFIGURATION

section for proper thermostat configuration.

THERMOSTAT TERMINALS (HEAT PUMP)

SYSTEM Heat Pump 1

L Malfunction

C* 24 Volt(Common)

R 24 Volt Emergency (hot)

E/W1 Emergency Mode 1st stage

W2 HP 1 and Emergency 2nd stage

Y1 Heat and Cool mode 1st stage

(compressor)

Blower/Fan Energized on call for Heat and

Cool

Set GAS/ELEC switch for Emergency

mode

O Energized in Cool Mode

B Energized in Heat Emergency mode

Reversing Valve Energized in Cool Mode

Reversing Valve Energized in Heat, Off, Emergency Mode

Compressor Contactor Stage 1

Fan Relay

Heat Relay Stage 1

Heat Relay Stage 2

Figure 5. Typical wiring diagram for single transformer multi-stage

systems CHECK THERMOSTAT OPERATION Note: To prevent static discharge problems, touch side of thermostat to release static build-up before touching any keys. If at any time during testing your system does not opera te properly, contact a qualified serviceperson. Fan Operation

If your system does not have a G terminal connection, skip to Heating

System System.

1. Turn on power to system.

2. Move FAN switch to ON position. The blower should begin to operate.

3. Move FAN switch to AUTO position. The blower should stop immediately Heating System

1. Move system switch to heat mode. If the auxiliary heating system has a

standing pilot, be sure to light it.

2. Press to adjust thermostat setting to 1℃ above room temperature. The

heating system should begin to operate. The display should show “STG1”.

However, if the setpoint temperature display is flashing, the compressor

lockout feature is operating (see Configuration menu, item 5).

3. Adjust temperature setting to 3° above room temperature.If your system

configuration is set at MS2, HP2 or HP1, the auxiliary heat system should

begin to operate and the

display should show “STG1+2”.

4. Press to adjust the thermostat below room temperature. The heating

system should stop operating. Emergency System

EMER bypasses the Heat Pump to use the heat source wired to terminal E

on the thermostat. EMER is typically used when compressor operation is not

desired, or you prefer back-up heat only.

1. Press SYSTEM switch to select Heat mode. then press EMER key..

“EMER” will show on the display.

2. Press to adjust thermostat setting above room temperature. The Aux.

heating system will begin to operate. The display will show “STG1” “EMER”

to indicate that the Aux. system is operating.

3. Adjust temperature setting to 2°C above room temperature.The auxiliary

heat system should begin to operate and the display should show “STG1+2”.

4. Press to adjust the thermostat below room temperature. The Aux. heating

system should stop operating. Cooling System

1. Move SYSTEM switch to select the Cool mode.

2. Press to adjust thermostat setting below room temperature. The blower

should come on immediately on high speed, followed by cold air circulation.

The display should show “STG1”.

Reviewing the Current Temperature Setting

Current time and temperature.

3. Press to adjust the temperature setting above room temperature. The

cooling system should stop operating.

CONFIGURATION MENU

INSTALLER/CONFIGURATION MENU

Step Press

Button

1 F MS 2 SS1, HP2,

Displayed

(Factory

Default)

Press up or

down key

to select

HP1

Comments

Selects Single stage,

Multi-stage, or Heat Pump

(Single stage or 2-stage)

System Configuration

2 F (RECO)off on No use

3 F (SPAN)2 1,3 Span(one stage) set to 1 to

be more accuracy

4 F (BLIT)on off BackLight

5 F (SP2)2 1,3 Span(Two Stage)

6 F (TEMP)F C Selects temperature display

F° or C°

7 F HOUR(12) 24 Selects time format display

12hours or 24hours

8 F COMP(OFF) ON Selects Compressor

Lockout OFF or ON

OPERATION 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, In order to take full advantage of

this thermostat’s feature. NOTE: Anytime you install or remove the thermostat form 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.

Energy Monitor

9 F COOL(1) 2 This model must select 1

10 F FACT(0) 1,2 This model must select 1 to

back factory Default

The configuration menu allows you to set certain thermostat operating

characteristics to your system or personal requirements. Set SYSTEM

switch to OFF, then simultaneously press up and down keys to enter

configuration menu. The display will show the first item in the configuration

menu.The configuration menu table summarizes the configuration options.

An explanation of each option follows.Press F key to change to the next

menu item. To exit the menu and return to the normal operation, press Run

Key. If no keys are pressed within fifteen Seconds, the thermostat will revert

to normal operation.

1)Single Stage, Multi-stage or Heat Pump System Configuration

This control can be configured for Heat Pump or two stage heat/one stage

cool multi-stage operation.The display indicates “MS 2” (default for

multi-stage mode) in the display. The Multi-stage configuration can be

toggled to “SS1”, or “HP1” by pressing the up or down key. In Multi-stage

configuration, EMER mode is useless.in this model.the “HP2” is no use.

2)Fast or Slow Crycle Selection(one stage)

3)Select Backlight function OFF or ON

4) Fast or Slow Crycle Selection(two stage)

5)Select F° or C° Readout.

Changes the display readout to Centigrade or Fahrenheit as required

6) Selects time format display 12hours or 24hours

7)Select Compressor Lockout COMP OFF or ON

Selecting COMP ON will cause the thermostat to wait 4 minutes before

turning on the compressor if the heating and cooling system loses power. It

will also wait 5 minutes minimum between cooling and heating cycles. This is

intended to help protect the compressor from short cycling. Some newer

compressors already have a time delay built in and do not require this

feature. Your compressor manufacturer can tell you if

the lockout feature is already present in their system. When the thermostat

compressor time delay occurs it will flash the setpoint for about four minutes.

8) This model must select 1

9)This model must select 1 to back factory Default

Setting Day and Time

y The LCD will show this information when

TIME

batteries are first installed. The temperature

will update after a few seconds.

y During time and day setting mode, the

temperature displays will go blank.

y Examples: Set the Thermostat to the current time of 2:16 pm on

Saturday.

Refer to the Steps below.

STEP 1:

y Press to enter time and day setting mode.

TIME

The current hour and the AM/PM indicator will

be flashing.

y 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:

TIME

y Press again to change from hour setting to

minute setting. The current minute will be

flashing.

y Press up or down to change the Minute up

or down to the current minute.

STEP 3:

TIME

y Press again to change from minute setting to

day setting. The current days will be flashing.

y Press up or down to change the Day up or

down to the current day.

STEP 4:

TIME

y Press again to change back to the normal

display.

RUN

NOTE: Clearing the Energy Monitor counter will also clear the Filter Monitor

counter , as Filter usage and Total Energy usage are the same. Also,

clearing the filter Monitor counter will clear ALL Energy Monitor counters as

well.

Filter Monitor

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 clear your filter regularly.

■ When the total system run time for heat and cool reaches 500 hours, you

need clean or change your system’s filter, “FILT” will continue to flash until

the counter is set back to zero.

■ Press to review total filter usage. The display will blink

“FILT”

Then show the filter Monitor counter. After 15seconds, the

display will return to normal mode, or you can hit RUN to

exit immediately.

The Filter Monitor will display up to 999 hours and 59 minutes of usage. In

this example, the counter is at 410 Hours, 26 minutes.

■ To reset the Filter Monitor counter, depress FILTER for 3 seconds. The

display will blink, and the counter will be reset to zero. NOTE: Clearing the Filter Monitor counter will also clear ALL Energy Monitor

counters, as Filter usage and Total Energy usage are the same. Also,

clearing the Energy Monitor counters will clear the Filter Monitor counter as well.

Keyboard lock

The keyboard can be locked to prevent unauthorized changes to the

thermostat.

To lock or unlock the keyboard, press and hold run Key for 3

seconds.The keyboard is locked.when LOCK appears on

the display.

■ All keys are locked, Any time a key is pressed, LOCK will appear on the

display for 1 second.

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 two-stage 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”

■ Press less than 1 second .

■ Set Temperature is shown above current room temperature.

■ The Energy monitor feature measures and stores

ENER

the amount of time the heating and air conditioning

system operates. Usage can be display for Today

(since 12 am), Yesterday, This Week (since Monday), Last Week (last

Monday through Sunday), and Total (up to 999 Hrs). By monitoring

your energy usage, you see how much the set-back periods are

saving. To review energy usage, press to cycle through Today,

Yesterday, this Week, Last Week, and Total. Press again to return to

normal mode, or wait 15 seconds for the display to return to normal

mode .You can also return to normal mode at any time by pressing

RUN

RUN.

■ For example: This LCD display shows Today’s usage to be 10 Hours,

minutes.

■ Press and hold for 3 seconds to reset the Energy Monitor’s

counters.

The display will blink, and counters will be cleared to zero.

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

operation.

Error Mode

If the thermostat is unable to control your system due to an

unexpected battery problem, the thermostat will enter Error

system

Mode. In this condition, the thermostat flashes

“E1”,“E2”,”E3”or”E4”on the LCD display, and shuts off your

cool

heat

off

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, and then hold any key

to release the rest energy. Then place the battery again. You will need

confirm normal operation.

fan

auto

If Error Mode returns, please call us for further information.

Warning Mode

If the SYSTEM MONITOR SWITCH is close show the

system have wrong.the thermostat flashs “E5”on the LCD

Mon

HEAT

display. 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 40˚F (4˚C). Note that if your system has

malfunctioned and no longer responds to thermostat controls, the Auto Cut-Off will have no effect.

TROUBLESHOOTING

Problem

SCRAMBLED OR

Solution

1. Remove clear mylar sticker.

DOUBLE

DISPLAY

(numbers over

numbers)

NO DISPLAY 1. Check battery connections and batteries

2. Move the battery out, and then hold any key to

release the rest energy. Then place the battery

again.

ENTIRE DISPLAY

1. Replace Batteries

DIMS

AUTO/FAN DOES

NOT TURN ON

1. Move Elec/Gas selector to opposite position is in

the correct position.

2. There may be as much as 4 minute delay before

the Heat or Cool system turns On-wait and

check. (Compressor protection delay).

3 ， Check your circuit breaks and switches to

ensure there is power to the system.

4. Replace batteries.

5. Make sure your furnace blower door is closed

properly.

6. If your system only uses 4-wires, be sure the

jumper wire is installed between the RC and RH

terminals.

7. Check the position of the Furnace or Heat Pump

selector switches: Normal/O/B.

ERRATIC

DISPLAY

1. Move the battery out, and then hold any key to

release the rest energy. Then place the battery

again.

IF UNIT

CONTINUES

1. Replace unit

TO OPERATE IN

THE OFF

POSITION

THERMOSTAT

PERMANENTLY

1. Replace unit.

READS

“E1”,”E2”,”E3”,

“E4”.

If you experience any other problems, call us for technical assistance. The service number is 1-866-591-9898

Comfort Stat CP2801 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual