TX-928H-20A-Modbus LCD Touch Screen Heating Thermostat 20A, has stand for RS485 communication Protocol and is available for boiler, manifold and underfloor heating system with 7-day, 6-period time program control.Models are with NTC sensor to detect ambient and floor temperature and do the control by compared with the setting one. Manual,time program and temporary mode can be switched any time by pressing the relevant keys. De-frost protection function will be active when ambient temperature below 5 °C , prevent water pipe from freeing and burning.
1.Touch screen LCD display with blue backlight
2.7-day,6-period time program
3.On/off output for valve
4.Manual, time program and temporary mode
5.De-frost protection
6.double sensor to control and limit the temp
7.key-lock function
8.Memory function:(can not memory on/ off condition)
8.Mounted onto standard 86*86mm junction box
7.outside sensor is optional as fittings when order
8.dry contact function:is optional
9. Certification: EMC , LVD
1.Type: TX-928H-20A-Modbus
2.Application: Manifold, boiler, water heater, electric heater
3.Power supply: 90VAC-250VAC,50/60Hz(switching automatically)
4.Setpoint range/Setting unit: 5℃-35℃/0.5℃ per step℃
5.Ambient conditions: 0 ℃~90℃,Humidity:<95percent
6.Temperature limitation: 5℃-60℃
7.Temp. Sensor: NTC 10K(25℃)
8.Switch current rating: 3A
9.Control type: On/off control
10.accuracy: ±1℃
11.Enclosure: Fire retardant PC ABS
12.Protection grade: IP20
13.Temperature correction: -9℃-9℃
14.Sensor selection: built-in or out or double is choiced by advanced setting
15.limitation temperature of outside sensor: 5℃-60℃/1℃ per step
16.Switch deviation bandwidth seting: 1℃~5℃/0.5℃ per step
17.De-frost protection: on/off by advanced setting
18.workdays time program switching: 5/6/7 workdays setting,or turn off the time program
19.dry contact function direction compare with main loop: company with or opposite
20.dry contact function output delay: 0-5mins
21.highest/lowest setpoint(temperature) limit setting: 5℃-90℃/1℃per step
22.recover factory setting:available by advanced setting
