1. Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.
2. Check the ratings given in the instructions and on the product to make sure the produce is suitable for your application.
3. Installer must be a trained experienced service technician.
4. After installation is complete.check out produce operation as provided in these instructions
Electrical shock or equipment Damage Hazard. or short equipment circuitry. Disconnect power supply before installation
Water heating and gas wall-hung boiler heating,
no contact wiring diagram,(disconnection when electric valve close) Note:3 & 4 connect with power,
5 & 6 connect with gas boiler,1& 2 connect with thermal actuator, please do not connect 1&2 to gas boiler,
If you connect it wrongly, there will be Short circuit,our gas boiler board will be damaged.
5+2 (factory default),6+1 and 7 models 6 times period setting for user choose.
In the advanced options choose model of you need, under power on state, long press SET for 3-5 seconds enter into
programming mode setting, then short press SET choose: hour,minute, time period, and press
to adjust data, finished setting, about 10 seconds will automatic save and exist.
Turn off thermostat, long press SET for 3-5 seconds to access advanced setting.
From A1 to AE, short press SET to choose the option, and adjust data by , short press SET to switch
next option.Remain about 5 seconds after finish setting will quit setting.
Turn off thermostat, long press OK for 3-5 seconds to access advanced setting.
From B1-B3,short press SET to choose the option, and adjust data by
short press SET
next option.Remain about 5 seconds after finish setting will quit setting.(Modbus or RS485 Model)
Limit valve of external sensor is 45℃ for factory default (A6),value of external sensor control return difference (A3) is 2. when temperature rise to 45℃,then relay stop working and will remind high temperature production alarm. If temperature decline to 43℃relay continue to work and heating alarm will be relieved. (it can be operated ,only when indoor temperature is lower than setting
Please choose correct working way of built-in and external sensor, if choose wrongly or sensor fault (breakdown), “E1” or “E2” will be displayed on the screen. Thermostat will stop heating until the fault is eliminated
We offer the warranty of 18 months, from the sales day. The products of our company can have lifetime
warranty ,if it is not the quality problems, or beyond the warranty period, we will charge for the after-sale service.