Toshiba SMMS-e Quick Reference page 31

Test Operation
Checklist 1
Using Checklist 1, check that there are no problems with the installation work.
Is the capacity of the Outdoor total capacity
circuit breaker (Earth
leakage breaker)
appropriate?
Is the gauge of the
power cable correct?
Is the control
communication line
correct?
Is the power of indoor units supplied collectively?
Is it grounded to earth?
Is the resistance sufficient? (10MΩ or higher)
Is the main power voltage sufficient? (within 380-415 V ± 10%)
Is the diameter of connecting pipe correct?
Is the branch kit correct?
Is the water drain of the indoor unit arranged so that it flows without accumulation?
Is the heat insulation of pipes sufficient? (connecting pipes, branch kit)
Is there no short circuit of discharge air in the indoor/outdoor units?
After an airtightness test of the pipes, are vacuuming and adding of refrigerant executed?
Are the valves of all the outdoor units fully opened?
Header unit (A)
A
Follower unit (B)
Follower unit (C)
Header unit (A)
Follower unit (B)
Follower unit (C)
Indoor-outdoor connection terminals (U1, U2)
Outdoor-outdoor connection terminals (U5, U6)
Central control system connection terminals (U3, U4)
Header unit (A)
Follower unit (B)
Follower unit (C)
A Indoor unit
A
A
mm² Indoor unit
mm²
mm²
10MΩ or higher
V
Gas side Liquid side
31
A
mm²
Balance side