Honeywell CT2700 User Manual

69-1085

7

CT2700 AN ELECTRONIC ROUND

 

™

 PROGRAMMABLE THERMOSTAT

c.

After the
thermostat
reverts back to
displaying room
temperature
(approximately five seconds), simultaneously
press

and

keys and hold for three

seconds. Release the keys after the display
changes.

d.

Press

within

five seconds.
The display
changes to
show current
cycle rate
setting.

2. Cycles Per Hour

a.

Use

or

to select 1, 3, 6, or 9 cycles per

hour (cph). Refer to Table 3.

b.

Press

to

display the
current 

°

F or

°

C setting.

3. Fahrenheit - Celsius Temperature

a.

Use

or

to choose between 

°

C and 

°

F.

b.

Press

to

display the
current 12- or
24-hour clock
setting.

4. Clock Format

a.

Use

or

to choose either

a 12- or 24-

hour clock format.

Press

once to exit the

Installer Setup. Upon exiting,
the temperature setting will
be at 52

°

F (11

°

C). Pressing

six times returns the

thermostat to the normal
operational mode. End appears in the display.

5. Slide system switch to desired position.

Gas or oil forced air

6

Electric furnace

9

Hotwater baseboard, High
efficiency (90+) gas furnace

3

Steam, radiant floor heat,
gravity

1

Heating/cooling
equipment will not
operate

No AC power to
thermostat.

Check power to heating/cooling equipment:  
—

On/Off switch

—

Fuse or circuit breaker

—

Loose 24V connection: At thermostat; at furnace/air
conditioner

—

Incorrect wiring: check appropriate wiring diagram.

Thermostat inoperative.

See checkout section.

System switch on
thermostat in wrong
position.

Reset System switch.

Thermostat minimum-off
times operating for
cooling.

Wait five minutes or follow steps in Checkout section.

Incorrect wiring.

Check wiring.

Heating/cooling
equipment inoperative.

Consult equipment manufacturer instructions.

Partial display

Inoperative  thermostat.

Replace  thermostat.

Still in installer setup
mode.

See Installer Setup section for exit instructions.

No display

No power to thermostat.

Check power to thermostat.

Thermostat mounted
incorrectly on wallplate.

See installation instructions for correct mounting.

Temperature display
is incorrect

Thermostat is configured
for °F or °C.

Reconfigure the display. See Installer Setup section for
instructions to change the display.

Cannot change
temperature setting  

The upper or lower
temperature limits were
reached.

Check the temperature setpoints; temperature setting
range is 40°F (4°C) to 99°F (37°C).

TROUBLESHOOT YOUR THERMOSTAT