Description
B811 series, large LCD digital thermostat, 110V/220 VAC±10%,16A thermostat for hot water radiant heating systems and electric heating cable system. system. system.
Basic function
Electronic on/off control up to water heating 3A & electric heating 16Ang 16Ag 16A
3 models:1-built in sensor; 2-built in sensor & floor sensor; 3-floor sensor (factory setting: built in sensor)nsor)nsor)
Six daily programmable time settings, Mondays to Sundays
Display the set temperature & room temperature at the same time time time
Two work mode switchover: (programmable, non programmable )
Display temperature calibrates
High temperature protection function
Anti-frost protection
Memory function: parameters are permanently held in memory and retained during power outages. (OPTION)
Product Specifications
Voltage: 110V/220VAC±10%VAC, 50/60Hz 50/60Hz 50/60Hz
Room temp differential: -9ºC~9ºCadjustable (factory setting-2ºC)etting-2ºC)dm;C)etting-2ºC)
External temp differential: -9ºC~0ºCadjustable9 (factory setting-5ºC)etting-5ºC)dm;C)etting-5ºC)
Room setting Range: 1ºC~50ºC (can adjust to15ºC~90ºC)o15ºC~90ºC)90ºC)o15ºC~90ºC)
External limitation: 20ºC~90ºC (factory setting65ºC)etting65ºC)dm;C)etting65ºC)
Mounting: mounts directly onto wall or wall-box
Temperature range: 0° c -40° c40° cg; c40° c
Sensor type: NTC
Color: white ivory
Relative humidity: <85% (23ºC)3ºC)
Dimensions: 86mm X 86mm X 13mm (H/W/D)
Size of display: 62 mm X 63mm (H/W)
Week
Time schedule
1
2
3
4
5
6
Time /ºCordm;Cordm;C
Time /ºCordm;Cordm;C
Time /ºCordm;Cordm;C
Time /ºCordm;Cordm;C
Time /ºCordm;Cordm;C
Time /ºCordm;Cordm;C
Mon.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Tue.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Wed.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Thu.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Fri.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Sat.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Sun.
6:00 / 20
7:30 / 15
11:30 / 20
14:00 /15
17:00 /20
22:00 /15
Advance setting: operated by engineer only
Reset to factory setting: under power off, press both ' ' and ' ' simultaneously for 6s, it will display 'RE' and press ' ' to confirm." and press " " to confirm.uot; to confirm.
under power off, press ' ' button for 6s to enter advance setting,ce setting,
Code
Function
Display
Factory setting
1
Model Setting
1-built in sensor; 2-built in sensor & floor sensor;nsor;nsor;
3-floor sensor
1-built in sensor
2
Temperature Calibrates
-8ºC~ 8ºCC~ 8ºCrdm;CC~ 8ºC
factory setting 0ºCordm;Cordm;C
3
High Limit Temp.
15ºC~ 90ºC~ 90ºCrdm;C~ 90ºC
factory setting 50ºCordm;Cordm;C
4
Upper Internal Sensor Switch Differential
0ºC~ 9ºCC~ 9ºCrdm;CC~ 9ºC
factory setting 0ºCordm;Cordm;C
5
Lower Internal Sensor Switch Differential
-9ºC~ 0ºCC~ 0ºCrdm;CC~ 0ºC
factory setting -2ºCordm;Cordm;C
6
Anti-Freezing Protection
ON/OF
Factory setting OF
7
Power Memory
ON/OF
Factory setting OF
8
External Sensor Temp. Differential Setting
-9ºC~ 0ºCC~ 0ºCrdm;CC~ 0ºC
factory setting -5ºCordm;Cordm;C
Failure codes:
E1= Room sensor open- circuit,short-circuit or disconnected
E2=T2 floor sensor open- circuit,short-circuit or disconnected
Wiring:
1)wiring of water floor heating (connect three-wire valve)
.