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APH07CH04 

R2000EN

T6811/6812 Series LCD Digital Thermostat

110/120/220 VAC

2-pipe fan coil control

Application

T68/682 digital thermostats are designed for 
application of 3-speed fan and valves in 2-pipe fan 
coil system.
Including:
 

-   2-pipe cool only/heat only/manual 

changeover between heat and cool

 

-  Ventilation mode

 

-  Manual 3-speed fan control

 

-  Water valve control

In ventilation mode, fan only support manual speed 
control.

Data sheet

Features

● Super modern appearance design, suitable for  

  office, hotel and residential building

● Independant installation on 86 size box directly
● Big LCD with English and icon display
● Easy to install and set-up
● Selectable room temperature or setpoint display
● Manual fan speed selection
● Adjustment of display room temperature
● Temperature unit either 

o

C or 

o

F

● User setting can be kept when power off
● Lock or unlock keys in Installer Set-up
● Heat and cool setpoint limitation for energy     

  saving

Model summary

Model

2-pipe/

4-pipe

Operating 

voltage

(V)

Energy 

saving Ventilation

Manual

/Automatic 

fan

T682DP08

2

220

N

Y

Y

T68DP08

2

0

N

Y

Y

Summary of Contents for T6812DP08

Page 1: ...et Features Super modern appearance design suitable for office hotel and residential building Independant installation on 86 size box directly Big LCD with English and icon display Easy to install and set up Selectable room temperature or setpoint display Manual fan speed selection Adjustment of display room temperature Temperature unit either o C or o F User setting can be kept when power off Loc...

Page 2: ...f output Accuracy 1o C at 21o C Rating capacity 220V 4 2 A for fan load 2 1 A for zone valve 110V 4 2 A for fan load 2 1 A for zone valve Cycle times 100 000 Setpoint range 10 32o C Installation Installed on 86 86mm junction box or US2 4 inch Protection Class IP20 Environmental Operation temperature 18 49o C Conditions Shipping temperature 35 65o C Relative humidity 5 90 Action Type Action Type 1 ...

Page 3: ...ton Check that the heat temperature setting is set above the room temperature and Heat On shows solidly in the display Wait five minutes for the heating system to respond Cooling system does not turn on Set the mode to Cool by pressing the Mode button Check that the cool temperature setting is set below the room temperature and Cool On shows solidly in the display Wait five minutes for the cooling...

Page 4: ...o F 0o C 0o F Default 0 5 o C 1o F 1o C 2o F 1 5o C 3o F 2o C 4 o F 19 Temperature Display mode 0 Display Room Temperature Default 1 Display Setpoint 20 Heating Range Stops 10 32o C Default 32o C 21 Cooling Range Stops 10 32o C Default 10o C 22 Keypad Lockout 0 All keys available Default 1 All keys Locked out Installer setup Press and hold UP and MODE buttons 3 seconds to enter setup mode Press UP...

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