Service manual
PRECAUTION                                                                                                  
HKD  DCI                                                               3                                                            Version      -  1 
1. Precaution 
1.1 Safety Precaution 
  To prevent injury to the user or other people and property damage, the following 
instructions must be followed. 
  Incorrect operation due to ignoring instruction will cause harm or damage.   
  Before service the unit, be sure to read this service manual at first. 
1.2 Warning 
 Installation 
  Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated 
circuit. 
There is risk of fire or electric shock. 
  For electrical work, contact the dealer, seller, a qualified electrician, or an authorized 
service center. 
Do not disassemble or repair the product, there is risk of fire or electric shock. 
  Always ground the product. 
There is risk of fire or electric shock. 
  Install the panel and the cover of control box securely. 
There is risk of fire of electric shock. 
  Always install a dedicated circuit and breaker. 
Improper wiring or installation may cause fore or electric shock. 
  Use the correctly rated breaker of fuse. 
There is risk of fire or electric shock. 
  Do not modify or extend the power cable. 
There is risk of fire or electric shock. 
  Do not install, remove, or reinstall the unit by yourself (customer). 
There is risk of fire, electric shock, explosion, or injury. 
  Be caution when unpacking and installing the product. 
Sharp edges could cause injury, be especially careful of the case edges and the fins on the 










