Design Trick
In order to maintain the steady performance of thermoelectric module, please follow below cautions for the handling.

How to assembly
Please try to level the surface of thermoelectric module and heat exchanger, and then use screws etc. to tighten little by little. We recommend M4 screw and apply 3kg*f, M3 screw and apply 2kg*f for torque for tightening screws in situation of using 2 screws to tighten 40*40mm thermoelectric module.
∗Failure will cause by over screwed or unbalanced load.

Cautions on Storage
For thermoelectric module storage, please avoid the place where might cause leakage or condensation and place with direct sunlight, and storage temperature and humidity is 5~35°C and 20~70%RH. Also, after passing more than 1 year by regular storage, we recommend to check the solder ability of lead wire before using it.

Cautions on use

1.	Please do not exert mechanical shock If mechanical shock such as dropping is given, it might cause to break (breach of ceramic plate, crack on internal semiconductor chip or solder connection, etc), so please take care in the handling of the product. ∗Take care the collision with tools or material during assembly, during the transportation, and dropping during operation.
2.	Regarding to lead wire Please do not pull lead wire and apply strong force on the connection with thermoelectric module. Breaking of wire or peel-off of sealing around connection, etc. might cause failure and become a reason of low performance or damage.
3.	To increase the efficiency • If the flatness of thermoelectric module and heat exchanger is bad, its performance is not able to be exercised. Please design to keep the flatness under ±2 /100mm as a goal. • Applying at maximum voltage and current but no enough heat releasing will not be good efficiency. We recommend to apply at 70% of maximum voltage and current as a target. In addition, it will cause failure or damage if applying voltage and current more than rated value. • Please wipe all the dusts on mounting surface of thermoelectric module. • Please thinly spread thermally-conductive silicone grease on surfaces of thermoelectric module and heat exchanger. ∗YG6260(Toshiba), G746, G747(Shinetu Silicone), etc.
4.	Cautions on protection against humidity The perimeter of thermoelectric module is sealed to protect humidity, but this is just for backup. For some reasons if any moisture comes into inside of thermoelectric module, it will be the reason of performance degradation or damage. So, please seal the unit again for humidity protection after the assembly.
5.	Power supply • Please control the power supply under 10% of ripple for thermoelectric module. • There are maximum of voltage, current, heat absorption, and temperature difference written in specification sheet of thermoelectric module. However, in reality, using 70% from there will pull out the best efficiency. For example, the thermoelectric module with Vmax=15.7 can be operated by 12V.

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