background image

7

Touch the 

 keys to 

select the maximum allowable 
upstairs airflow in heating. 

Touch 

 or

.

UP/DOWN

NEXT

 ENTER

Touch the 

 keys to 

set the time at which second 
stage heating or cooling is 
activated. 

Touch 

 or

UP/DOWN

NEXT

 ENTER.

Upstairs

Airflow %

Option

Option

NEXT

NEXT

ENTER

ENTER

Heat

For options 20 - 23, use the installer test o

imum allowable airflow.

n pages 7-8 to 

determine the max

Touch the 

 keys to 

select the maximum allowable 
upstairs airflow in cooling. 

Touch 

 or

.

UP/DOWN

NEXT

 ENTER

Upstairs

Airflow %

Option

NEXT

ENTER

Cool

Touch the 

 keys to 

select the maximum allowable 
downstairs airflow in heating.

Touch 

 or

UP/DOWN

NEXT

 ENTER.

Downstairs

Airflow %

Option

NEXT

ENTER

Heat

Touch the 

 keys to 

select the maximum allowable 
downstairs airflow in cooling.

Touch 

 or

.

UP/DOWN

NEXT

 ENTER

Downstairs

Airflow %

Option

NEXT

ENTER

Cool

Touch the 

 keys to 

select the maximum allowable 
temperature difference between 
the upstairs and downstairs. 

Touch 

 or

UP/DOWN

NEXT

 ENTER.

Upstairs

Downstairs

Airflow %

Option

NEXT

ENTER

Touch 

 or 

 to 

return to normal thermostat 
operation. Touch the hidden 

 key to return to previous 

option.

To restore factory settings, 
touch 

, then touch the 

 key.

NEXT

ENTER

BACK

ENTER

UP

Option

NEXT

ENTER

maximum allowable temperature difference between the upstairs and 
downstairs temperatures. When the temperature difference is equal to 
or greater than the allowed differential, the airflow is adjusted.

Downstairs

Downstairs

Upstairs

Upstairs

20  Maximum Upstairs Airflow in Heating

19  Upstaging Time

Factory Default: 150%.   Range: 100% to 160%.

Factory Default: 30 minutes.   Range: 5 to 180 minutes

21  Maximum Upstairs Airflow in Cooling

Factory Default: 140%.   Range: 100% to 160%.

22  Maximum Downstairs Airflow in Heating

Factory Default: 150%.   Range: 100% to 160%.

23  Maximum Downstairs Airflow in Cooling

Factory Default: 140%.   Range: 100% to 160%.

24  Maximum Temperature Differential

Factory Default: 2 F. 

o

Range: 0  to 10 F

25  Factory Restore

WARNING! Factory Restore 
                   resets ALL settings.

WiFi model only.

When participating in Demand 
Side Management with the 
utility company, the thermostat 
will display UC (Utility Control) 
when the utility company has 
limited the cooling setpoint 
setting in the thermostat.

Demand Side Management

Inside

Tu

Day

Upstairs

Auto

Downstairs

Airflow %

COOL

Schedule

AUTO

FAN

MENU

MODE

Cool

Set To

SYSTEM

AM

Touch the 

 key to select ON 

for airflow control or touch the 

 key to select OFF to 

disable airflow control. 

Touch 

 or

.

UP

DOWN

NEXT

 ENTER

Upstairs

Downstairs

Airflow %

Option

NEXT

ENTER

This option turns the automatic airflow control on or off. If on, the 
thermostat will automatically adjust the airflow. If off, airflow is disabled.

17  Airflow Control, On or Off

Factory Default: On. Range: On or Off.

NEXT

ENTER

Touch the 

 key to select ON 

to enable manual airflow 
control or touch the 

 key 

to select Off so that manual 
airflow control is not an option. 

Touch 

 or

UP

DOWN

NEXT

 ENTER.

This option enables the user to select automatic or manual airflow. In 
automatic, the thermostat controls the airflow. Automatic is the default.  
In manual, the user must adjust the airflow. 

Option

18  Enable Selecting Manual Airflow Control

Factory Default: Off. Range: On or Off.

Option

NEXT

ENTER

Night

Touch the 

key to turn the 

low level backlight ON or touch 
the 

 key to turn OFF.  

Touch 

 or

UP 

 

DOWN

NEXT

 ENTER.

The LCD has a low level backlight that can be used as a night light.

16  Night Level LCD Backlight

Factory Default: On. Range: On or Off.

Summary of Contents for C365T21

Page 1: ...he C365 monitors the downstairs temperature The C365 adjusts the upstairs and downstairs airflow during heating and cooling calls to maintain uniform upstairs and downstairs temperatures SYSTEM MODES Off Heat Cool Auto THERMOSTAT MODES Hold Schedule or Vacant mode PROGRAMS PER DAY Morning Daytime Evening and Night PROGRAM FORMAT Weekdays and weekend 5 2 TEMPERATURE OVERRIDE Temperature is held for...

Page 2: ...uired to define the upstairs or downstairs zones the damper may be wired in parallel LEDS on the damper actuator indicate when the damper is fully open green or fully closed red Green LED Red LED INSTALL UPSTAIRS DOWNSTAIRS DAMPERS R C WOB EQUIPMENT Y G Upstairs Sensor COM COM CLS CLS OPN OPN Upstairs Downstairs Upstairs Sensor W2E Y2 C365T21 Ensure that damper installation does not cause obstruct...

Page 3: ...C365T21 Downstairs Thermostat Model TS5 Upstairs Temperature Sensor Model R80CT XX Downstairs Damper Y Y W O or B C C R R WIRING DIAGRAM C365T21 Upstairs Sensor WIRING INSTRUCTIONS Cont Use 3 conductor 18 or 20 gage thermostat cable to wire from the C365 Thermostat to the upstairs and downstairs dampers There are separate terminals for the upstairs and the downstairs dampers Multiple dampers can b...

Page 4: ...n to thermostat operation CHANGE THE DAY OF THE WEEK Inside Tu Day Upstairs Auto Downstairs Airflow COOL Schedule AUTO FAN MENU MODE Cool Set To SYSTEM AM Touch here to change the time and day of the week We ENTER AM NEXT ENTER AM Press the touchscreen with your fingertip only using a firm touch Do not use a sharp object such as a pen or pencil Inside Tu Day Upstairs Auto Downstairs Airflow COOL S...

Page 5: ...cription Equipment Type Reversing Valve Compressor Stages Compressor Minimum Off Time minutes Gas Minimum Off Time minutes Minimum Run Time minutes On Off Temperature Differential Smart Recovery Vacant Heating Setpoint Vacant Cooling Setpoint o o 0 Cooling On 1 above setpoint Off at setpoint Heating On1 below setpoint Off at setpoint o o o o 1 Cooling On 1 above setpoint Off 5 below setpoint Heati...

Page 6: ...NEXT ENTER Touch the keys to set the time in minutes to update the upstairs and downstairs airflow Touch or UP DOWN NEXT ENTER Option NEXT ENTER This is the frequency in minutes that the damper position is updated 14 Calibrate Upstairs Temperature Sensor Factory Default None o Range 5 15 Airflow Update Time Factory Default 2 Minutes Range 1 to 20 Minutes Touch the UP DOWN keys to change the minimu...

Page 7: ... Airflow in Cooling Factory Default 140 Range 100 to 160 22 Maximum Downstairs Airflow in Heating Factory Default 150 Range 100 to 160 23 Maximum Downstairs Airflow in Cooling Factory Default 140 Range 100 to 160 24 Maximum Temperature Differential Factory Default 2 F o Range 0 to 10 F o o 25 Factory Restore WARNING Factory Restore resets ALL settings WiFi model only When participating in Demand S...

Page 8: ... is too great and causes noise or annoyance Increase the airflow using the key until it is acceptable This is the maximum allowable downstairs airflow in heating Record the airflow value DOWN UP Maximum Allowable Downstairs Airflow in Heating 05 06 Testing Cooling Airflow Limits In Option 5 the system is Off Touch to go to Option 6 to activate cooling Verify the equipment is operating To determine...

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