background image

Program Menu Options:

Shows different options
during programming.

Wireless Icon

System Information:

Shows which zone or 
zones are controlling 
your system. Shown
only when one or more
indoor sensors 

R251W

are connected.

2

Getting to know your thermostat

LCD

1

2

Fan Button

3

System Button

4

5

Temperature 

Setpoint Buttons

6

Menu Button

Temperature:

 

Indicates the current
system temperature.

Days of the week and time. 
Flashes outside temperature 
when used with R250W. 

OUTDOOR

 will show.

Glow in the Dark 

Light Button

6

1

2

3

4

5

Low Battery Indicator:

 

Replace batteries when 
this indicator is shown.

Programmable Time 
Period Icons:

 

This thermostat has 
4 programmable
time periods per day.

Important:

The low battery indicator is displayed 
when the AA battery power is low. If the 
user fails to replace the battery within 
21 days, the thermostat display will only 
show the low battery indicator as a final 
warning before the thermostat 
becomes inoperable. The batteries are 
located on the back of the thermostat.

Clean Display:

 

Pressing 

CLEAN DISPLAY 

will allow 30 seconds to 
clean the display. The keys 
will be inoperable during this 
time. 

CLEAN 

will appear if 

your contractor has 
programmed a filter change 
reminder. Press 

CLEAN

 

when filter has been replaced 
to reset the filter change 
reminder timer.

NOTE ABOUT THE LIGHT BUTTON:

 

This button is used to light up the 

display, but it is also used to set up 

communication with the base module. 

DO NOT

 hold the light button down for 

more then 10 seconds, unless you are 

performing the initial communication 

setup steps.

REMOTE

 indicates a 

remote has control of the 
system. 

HOLD

 is displayed when

thermostat program is 
permanently overridden.

Indicates 

Energy Star

® 

approved program is 
being used.

Displays the user selectable 
setpoint temperature.

System operation indicators:

 

The 

COOL, HEAT

 or 

FAN

 icon 

will display when the 

COOL, 

HEAT

 or 

FAN 

is on.

NOTE: The compressor delay 
feature is active if these icons 
are flashing. The compressor 
will not turn on until the 5 
minute delay has elapsed.

COOL    HEAT

     

FAN

 

Содержание truecomfort iii

Страница 1: ...with Battery Backup If using remote sensors the thermostat must be hardwired Power Type 1 Gas or Oil Heat Electric Furnace Heat Pump No Aux or Emergency Heat Heat Pump with Aux or Emergency Heat Multi...

Страница 2: ...hermostat becomes inoperable The batteries are located on the back of the thermostat Clean Display Pressing CLEAN DISPLAY will allow 30 seconds to clean the display The keys will be inoperable during...

Страница 3: ...are in direct sunlight With an outside wall behind the thermostat In areas that do not require conditioning Where there are dead spots or drafts in corners or behind doors Where there might be conceal...

Страница 4: ...NOT weatherproof Base Module Basement Installation 4 PRO1 Tip Wireless Range Range between the T955W and the base module is up to 100 feet with no obstructions and up to 50 feet in standard residenti...

Страница 5: ...rproof Base Module Attic Installation 5 PRO1 Tip When performing an attic installation instead of placing the base module in the attic locate the closet nearest to the air conditioning unit Then mount...

Страница 6: ...ose of it properly Your local waste management authority can give you instructions on recycling and proper disposal For vertical mount put one screw top and one screw bottom For horizontal mount put o...

Страница 7: ...ule s subbase the same way you would wire a hardwired thermostat subbase For vertical mount put one screw top and one screw bottom For horizontal mount put one screw left and one screw right Horizonta...

Страница 8: ...factory to operate a conventional heating and cooling system This thermostat will also operate a heat pump system See the heat pump configuration step on page 12 of this manual to configure the thermo...

Страница 9: ...is reestablished The Blue LED on the base module will also turn off to show communication has been lost Note The Blue LED on the base module will be on when power is present The Blue LED will flash 3...

Страница 10: ...on The heating swing setting is adjustable from 0 2 F to 2 F For Example A swing setting of 0 5 F will turn the heating on at approximately 0 5 F below the setpoint and turn the heating off at approxi...

Страница 11: ...r nonprogrammable Program Options Select F for Fahrenheit temperature read out or select C for Celsius read out F for Fahrenheit C for Celsius F F or C The second stage will turn on at 2x the swing se...

Страница 12: ...enable the balance point tech setup option The cooling fan delay setting will delay the fan from coming on in cool mode and keep running after the compressor shuts off for a short time to save energy...

Страница 13: ...ep Then hold down the light button on the R251W until it beeps while in ZONE technician setup step on R251W To connect a second R251W change the T955W to read 2 and change the R251W to zone 2 The zone...

Страница 14: ...the thermostat or base module snaps in place On the back of the thermostat insert 2 AA Alkaline batteries included Battery installation is optional if there are no remotes connected to the Master Ther...

Страница 15: ...low to set the day of the week and current time Press MENU Press SET TIME Day of the week will be flashing Use the or key to select the current day of the week Press NEXT STEP The current hour is flas...

Страница 16: ...customized program schedule if using 5 1 1 Wake Leave Return Sleep Wake Leave Return Sleep Wake Leave Return Sleep Weekday Customize Your Program Saturday Sunday Day of the Week Setpoint Temperature...

Страница 17: ...period Repeat steps 4 through 7 for Saturday WAKE time period for Saturday LEAVE time period for Saturday RETURN time period and for Saturday SLEEP time period 1 2 3 4 5 6 7 8 9 Sunday Repeat steps 4...

Страница 18: ...as needed It is very important to make sure the cooling setpoint temperature is at least 3 above the heating setpoint temperature and that the heating setpoint temperature is at least 3 below the cool...

Страница 19: ...e Battery power from 2 AA Alkaline batteries 32 F to 105 F 0 to 41 C 90 non condensing maximum 4 7 W x 4 4 H x 1 1 D 916 MHz 19 SPECIFICATIONS CONTACT INFORMATION Specifications Pro1 IAQ Inc 1111 S Gl...

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