M 88AH Heating Thermostat Manual E 5. Load current : 3A/16A 6.Temperature setting : 5~90 Application The thermostat is designed for control of electric heating devices (Built in sensors for measuring room temperature and external sensor for high temperature protection , to prevent heating device burned due to high temperature). User Operation Power Key : Touch the On / Off key to turn the system on or off. Mode Key :You can select period control mode or manual mode by this key. VV Up / Down keyTouch the Up and Down keys to set the temperature and adjust system parameters. And press Up and Down simultaneously and hold for 5 seconds to enter lock key function. Clock key: You can adjust the time and the week by this key. Manual mode: Set the temperature manually by this key. by week programming. Anti-frozen function In the state of shutdown, the thermostat will turn on the heating device automatically When the room temperature is below 5. when the room temperature is above 7, the thermostat will turn off the heating device automatically. Technical data 1. Temperature sensor : NTC 2. Temperature accuracy : 1 3.Power consumption : <1W 4.Voltage: AC230V 50/60Hz 7. Key : Touch key Programming: 6 event time and temperature In the shutdown state, long press mode key " " and the clock key " " for 5 seconds to enter programming mode. you can switch parameters by mode key. After entering the programming mode press mode key to adjust " hour" ,then press mode key to adjust
"minute".Press the mode key again to adjust temperature. 1 .Wake-up 2. Leave 3 Return(am) 4.Leave(pm) 5.Return(pm) 6.Sleep Key Event Symbol Default value 01 02 03 04 05 06 01 02 W e e k d a y W e e k e n d Time 06: 00 08:00 11:30 12:30 17:00 22:00 08:00 23:00 S e t t i m e 20 15 15 15 22 15 22 15 S e t t e m p e r a t u r e Advanced setting (qualified person preferred) Press" M "and" "at the same time to enter the mode of advanced setting immediately when thermostat is turned off. The following seven functions can be chosen by" M "key. Temperature calibration Sensor mode Overheating protection Switching differential Anti-frozen function Kinds of periods of time mode Max . temperature Set the lower limit of temperature Reset to factory settings
-2 IN 1 ON 01 40 10 Adjust measured temperature range:-9~9C IN:built-in sensor OU:floor sensor AL:both sensor 60 Adjust range:5~60 Adjust switching differential range:1-5 Turn on(01)/off(00) Anti-frozen function OF : Close 02:6+1 day mode 01:5+2 day mode 03:7 +0day mode Adjust range:30~90 Adjust range:5~20 M 1 2 3 4 5 6 7 8 9 Automatic mode Adjust to the automatic mode, the thermostat will work cyclically Symbol Setting Default value or Mounting steps 1.Connect the power supply box 2.Push the panel up and take down according to the wiring diagram. the panel. 3.Install the fixed plate of thermostat 4.Make the panel buckle to the in electrical connection box with screws. fixed plate and push it down. Mounting Location Recommended The heating thermostat should be mounted on the wall with air flowing freely around. Warning: The mounting location should not be influenced by other heat source(e.g. Common failure handling Failure Crash Handling 1.Check the power supply wiring is correct or not . 2.Check the power key . LCD display garbled 1.The shell is deformed after installation,can be reinstalled. Display normal No output 1. Check whether the wiring between the MPU and the power board is damaged. 2.Check whether the null line of live line is connected wrong. Remote failure Check if the remote control battery has enough power , if not replace the battery. Temperature display error Adjust the panel temperature display by the first option in the Advanced tab. Sensor failure Check the sensor for damage Er1: Built-in sensor disconnected or fault with it. Er2 External sensor disconnected or fault with it. 16A L1
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=3950 R25=10K t 1 2 3 4 2 1 Wiring diagram ME 88H.03 ME 88H.16 ME88H.31 3A NC
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=3950 R25=10K t 1 2 3 4 Main control circuit Potential-free output 3A NC
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Setting Temp Locking key Heating Manual/Automatic Time Week Room Temp 1-6 Period Touch key 8 6 m m sunlight), air flow through doors& windows or temperature of outer wall. Dimension 86mm 40mm 14mm 1)Thermostat networking steps:
Press and hold the up and down keys for about 5 seconds when the thermostat is turned off . When you hear the buzzer ringing 3 sounds, the thermostat enters the distribution network interface. After the screen displays full display(or press the power button to exit)the thermostat has entered the network initialization status .When the WiFi symbol " " of the thermostat does not flash, it indicates that the connection is successful. Please note that the router or the corresponding WiFi device is turned on and within 5 meters of the thermostat. 2)Mobile phone networking steps:
Before configuring WIFI , please make sure your phone is connected to 2.4GHz WIFI. 1. Use your mobile phone to scan the QR code below to download theTuya Smart app. China Foreign 2.Open theTuya Smart app and click Add Device as shown below. 3.After clickingSmall Home Appliances, select Thermostatas shown below. 4.Clickconfirm indicator rapidly blinkas shown below. 5.After entering the WIFI password, pressConfirmas shown below. 6.The phone enters the device search and 7.The mobile phone adds the device connection the connection mode is as shown below. successfully, clickDoneas shown below. 8.Click on theDonebutton above to enter the control interface as shown below. 3)Device sharing instructions:
1.Click as shown below. 2.ClickShare Device as shown below. 3.ClickAdd Sharing as shown below. 4.After entering the account number
,clickDoneas shown below. 4)Thermostat and mobile phone Exit the network:
Press and hold the up and down button for about 5 seconds while the thermostat is off. When the buzzer sounds 3 times into the distribution network interface, the screen displays full display. At this time (or press the power button to exit) the control panel has entered the network exit state (also the distribution network state). This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be u sed in portable exposure condition without restriction