Honeywell T7200 User manual

Set/Recall Occupied/

Unoccupied Times

Liquid Crystal Display

Including Programming

Prompts

and Status Indicators Select Desired Constant Data Entry Keys

Display

Set Correct Set/Recall

Time of Day/ Occupied/

Day of Week Unoccupied Temperatures

Activate/Deactivate

Convenience Overrides’

Congratulations!

You are the owner of one of the finest thermostats

ever produced by Honeywell. using outdoor air for “free” cooling whenever

possible.

The unique features of the T7200/T7300 Program-

mable Commercial Thermostats satisfy the special

requirements of commercial single zone air condi-

tioning systems, and provide convenience and tem-

perature

control

accuracy that is unparalleled in the

Industry. These thermostats also include energy

saving features which allow them to minimize the

energy needed to maintain comfort conditions by

A thprough review of this Owner’s Manual will help

you Identify those features which will maximize

comfort

convenience and savings in your applica-

Terms and words that may not be familiar to you

are explained in the glossary at the end of this

manual.

STARTUP

When power is first applied, an internal startup

program begins. This takes place after any total

loss of power (supply voltage and backup battery)

and lasts 2 seconds.

At this time, default temperature setpoint values are

used for temperature control. These are: heating

68 F [20

and cooling 78 F [26 C]. Following the

startup period, you can enter new setpoints which

will be used in place of these default values.

Should a power failure occur after your time and

temperature schedule entries are made, the backup

battery will maintain your schedule up to 60 hours.

As long as either system or battery backup power is

present, your program is available and will be used

for temperature control.

INDICATORS

No Program in Thermostat Memory

A display of 4 dashes

(----)

indicates that there is no

program stored in the thermostat’s memory. This

will occur when power is first applied to the

thermostat, or when power was lost to the thermo-

stat while battery backup was either weak or not

installed.

Loss of External Power

A blank display indicates loss of external power.

The backup battery will maintain your time and

temperature schedule during power loss. The

keyboard and display are inoperative while the

thermostat is operating on battery power.

BATT Displayed on LCD

BATT displayed on LCD indicates backup battery is

weak or not installed. Refer to section titled

BATTERY ACCESS AND REPLACEMENT for

instructions.

OPERATION

SELECTING THE DESIRED OPERATING DISPLAY

The DISPLAY key allows you to select a continuous

display of time or temperature. Each press of the

DISPLAY key will toggle the display between time

or temperature.

Temperature Display of

--’

A display of 2 dashes and a degree symbol (--“),

indicates a temperature sensor failure. See section

titled TROUBLESHOOTING GUIDE for instructions.

MINIMUM OPERATION TIMES

The T7200 and T7300 thermostats incorporate

minimum operation times of 2 to 4 minutes. These

times are in effect after startup. anytime power to

the thermostat is removed and then reapplied, or

after heating or cooling goes either on or off. These

time delays will protect and extend the life of your

heating and cooling equipment.

Due to these times, the thermostats

will

not react

instantaneously to

setpolnt

changes.

PROGRAM SCHEDULE

Each day of the week can be individually pro-

grammed with 2 Occupied and 2 Unoccupied

periods to make maximum use of schedule

variations.

Occupied operation is based on Occupied Heat and

Occupied Cool setpoints. Unoccupied operation is

based on Unoccupied Heat and Unoccupied Cool

setpoints.

Intelligent Recovery’“, based on a setpoint ramping

feature, is used when switching from Unoccupied

operation to Occupied operation. This selects the

optimum time to begin building warmup or

cool-

down, and can vary depending on space temperature

deviation from setpoint. The end result of Intelligent

Recovery’” is the correct temperature at the

occu-

pancy

time. This increases energy savings while also

providing increased user convenience.

UNOCCUPIED

COOL SETPOINT

OCCUPIED

COOL SETPOINT

OCCUPIED

HEAT SETPOINT

UNOCCUPIED

HEAT SETPOINT

UNOCCUPIED

PERIOD

, INTELLIGENT

OCCUPIED , UNOCCUPIED

RECOVERY’” PERIOD

PERIOD

SECURITY

The T7200/T7300 thermostats provide

program

security capability which, if used, can lock out

programming. This prevents tampering with thermo-

stat setpoints and schedules. If the lock out function

is not used, the thermostat can be programmed

normally as described in this manual. When the

thermostat is locked out, only limited keyboard

functions are available. The three overrides, setting

clock times and program reviews can be performed

when the keyboard is locked out.

OVERRIDING THE THERMOSTAT’S

PROGRAM

The security feature of this thermostat does not

lock out the use of the 3 overrides.

Two of the overrides (3 Hour Occupied and Setpoint

Adjust) are timed for3 hours, at which time the

thermostat returns to the normal program. The last

override (Continuous Unoccupied) is not timed.

Once this override is in operation, it cannot be

exited unless the CONT UNOC key is pressed or

another override is placed into operation.

None of these 3 overrides may be used at the same

time, and the last override placed into operation will

be in control.

KEY USED FOR THE 3 HOUR OCCUPIED OVERRIDE

3 HOUR OCCUPIED

This override is useful in situations where people

will have to be in a building when it is normally va-

cant such as after normal working hours or on week-

ends or holidays. Press the 3 HOUR OCCUPIED

key to place the thermostat into the Occupied mode,

controlling the space temperature to the occupied

setpoints for 3 hours. The indicator on the left side

of the display will point to 3 HR OCCUPIED while

this override is in effect.

HOUR OCCUPIED

KEY PRESSED

5OCCUPIED--

UNOCCUPIED-

2466

12 2

6 6

10 12 2 46

IO 12

FRIDAY

SATURDAY

-A.M.--P.M.-C-A.M.--P.M.-

TIME OF DAY

KEYS USED FOR THE SETPOINT ADJUST OVERRIDE

SETPOINT ADJUST

This override is useful in situations where the occupied

space feels too cool or warm for the occupants and a

temporary change of setpoint would make the temperature

more comfortable. It can be called from either the Occu-

pied or Unoccupied modes and functions in this way:

Press the 3 HOUR OCCUPIED key. If in Unoccupied.

the thermostat will go to the Occupied mode, controlling

the space temperature to the Occupied setpoints for 3

hours. If in Occupied mode, no change of setpoints will

occur. However, this will ensure 3 hours of Occupied set-

point control regardless of any Unoccupied Start Times

that may be programmed. The indicator on the left side of

the display will point to 3 HR OCCUPIED while this over-

ride is in effect.

THEN:

Press the the +key. This will adjust the setpoint up by

a preprogrammed “Amount of Setpoint Adjust”. As an

example, Occupied Heat is set for 70 F and “Amount of

Setpoint Adjust” is set for 5 F. After the +key is pressed,

the Occupied Heat setpoint will be 70 + 5 or 75 F. The

thermostat will then control the space temperature to 75 F

and the indicator on the left side of the display will

continue to point to 3 HR OCCUPIED during the

remainder of the 3 hours of adjusted setpoint.

Press the

key. This will adjust the setpoint down by a

preprogrammed “Amount of Setpoint Adjust”. As an

example, Occupied Heat is set for 70 F and “Amount of

Setpoint Adjust” is set for 5 F. After the

key is pressed,

the Occupied Heat setpoint will be 70 5 or 65 F. The

thermostat will then control the space temperature to 65 F

and the indicator on the left side of the display will

continue to point to 3 HR OCCUPIED during the

remainder of the 3 hours of adjusted setpoint.

NOTE:

Refer to the section titled TO SET THE AMOUNT OF SET-

POINT ADJUST for instructions on how to vary the

setpoint

adjust.

KEY USED FOR CONTINUOUS UNOCCUPIED OVERRIDE

CONTINUOUS UNOCCUPIED

This override is useful in situations where the

build-

ing will be vacant for an extended period of time

(such as temporary closings or long holidays).

Pressing the CONT UNOC key will place the

T7300

into the unoccupied

period

for an indefinite time.

When in this mode, the thermostat will control to

the unoccupied setpoints with the indicator pointing

to CONT UNOC. A second press of the CONT

UNOC key will cancel this override mode and return

the T7300 to normal operation.

CONT “NOC

KEY PRESSED

5OCCUPIED

UNOCCUPIED

12 4s12

12 4

I-

TUESDAY WEDNESDAY

A.M.-C-PM.-

-A.M.--P.M.-

TIME OF DAY 17

Convenient keyboard layout provides effortless

program entry. your avenue to maximum energy

and cost savings.

The following pages provide function-by-function

instructions to program the T7200/T7300 Program-

mable Commercial Thermostats.

The following general steps are required to enter

your weekly time and temperature schedule into the

thermostat.

. Enter the correct time and day.

.Enter the temperature setpoints you want for

heating and cooling system operation.

.For each day of the week, enter starting time for

the periods when your building will be occupied

and unoccupied.

.To review program entries, simply press the same

function keys used to begln each programming

step. For example, to review the occupied cool

temperature setpoint, press the OCCUPIED

COOL key.

. Sample schedules can be found at the end of the

PROGRAMMING THE THERMOSTAT section.

PROGRAMMING NOTES:

The + and

kevs are used to adjust the dav. time or

setpoint temperatures ahead or’back

respectively

Foe$e

DISPLAY key to exit any programming

IMPORTANT 1

This thermostat provides security which can lock

out programming to prevent tampering. If the key-

board or display do not respond, programming may

be locked

out

-- contact your installer. The override,

display and clock keys remain active and are not

locked out by this

feature.

See the section titled

SECURITY AND OVERRIDES for details.

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