Sunrain YC-007TB1, Installation & Operation Manual, Page: 26 / 32

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●Forced operation is forbidden, because it is very dangerous to work without protector.
9.2 Preparation Before Adjustment
●The system is installed correctly.
●Tubes and lines are putted in the right place.
●Accessories are installed.
●Ensure the smooth drainage.
●Ensure the perfect insulation.
●Correct connection of ground lead.
●The supply voltage can meet the requirement of rated voltage.
●Air inlet and outlet function can work well.
●Electrical leakage protector can work well.
9.3 Adjustment Process
●Check if the switch of the line controller can work well.
●Check if the function keys of the line controller can work well.
● Check if the indicator light can work well.
●Check if the drainage system can work well.
●Check if the system can work well after starting up.
●Check if the water outlet temperature is acceptable.
●Check if there is vibration or abnormal sound when the system is functioning.
●Check if the wind, noise and condensate water produced by the system affect the environment around.
●Check if there is refrigerant leakage.
●If any fault occurs, please check the instructions first, to analyze and remove the fault.
10. Operation and maintenance
10.1 Personals shall possess professional knowledge or operate according to
professionals from our company. To ensure the well functioning, the system shall be
checked and maintained after a period of time. During the maintenance, please pay
attention to some points below:
●Control and protect the equipment, please do not adjust any settings discretely.
●Pay close attention to whether all the operation parameters is normal during system working.
●Examine regularly whether the electrical connection is loose, if yes, fasten it on time.
●Examine regularly the reliability of the electrical components, change all the failed or unreliable
components on time.
●There will be calcium oxidized or other mineral substance deposition on the surface of water heat
ex-changer copper coil after long period of operation, which will influence the heat exchange performance
and lead to high electrical consumption, discharge pressure increasing and air suction pressure drop, unit