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<Check list 1>
• Using the “Check list 1”, check there is no trouble in the installation work.
Is capacity of the leak Outdoor total capacity XXXX A Header unit (A) XXXX A Indoor unit XXXX A
breaker appropriate?
Follower unit (B) XXXX A
Follower unit (C) XXXX A
Follower unit (D) XXXX A
Is diameter of the power cable correct? Header unit (A) XXXX mm² Indoor unit XXXX mm²
Follower unit (B)
XXXX mm²
Follower unit (C) XXXX mm²
Follower unit (D) XXXX mm²
Is control communication line correct? Indoor –outdoor connection terminals (U1, U2) XXXX
Outdoor–outdoor connection terminals (U5, U6) XXXX
Central control system connection terminals (U3, U4) XXXX
Is power of indoor units supplied collectively?
Is earth grounded
Is insulation good?
Is the main power voltage good? XXXX V
Is diameter of connecting pipe correct?
Is the branch kit correct?
Is drain water of the indoor unit arranged so that it flows without accumulation?
Is thermal insulation of pipes good? (Connecting pipes, Branch kit)
Is not short-circuit of discharge air in indoor/outdoor units?
After airtight test for pipes, are vacuuming and adding of refrigerant executed?
Are valves of all the outdoor units fully opened? Gas side Liquid side Balance side
Header unit (A) XXXX XXXX XXXX
Follower unit (B) XXXX XXXX XXXX
Follower unit (C) XXXX XXXX XXXX
Follower unit (D) XXXX XXXX XXXX
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