7
GB-9
Table 4.1
Table 4.2
4. SPECFICATIONS
Number of units that can be
used together
Connected units
1-5 units
Compressor stop/start frequency
Stop time
3 min or more
voltage fluctuation
within ±10% of rated voltage
Power source voltage
voltage drop during start
within ±15% of rated voltage
interval unbalance
within ±3% of rated voltage
1 drive 2 1 drive 3
Max. length for all rooms
30
45
Max. length for one indoor unit
25
30
Max. height different between
indoor and outdoor unit
OU higher than IU
15
15
OU lower than IU
15
15
Max. height different between indoor units
10
10
1 drive 4 1 drive 5
60
75
35
35
15
15
15
15
10
10
Unit: m
When installing multiple indoor units with a single outdoor unit, ensure that the length of
the refrigerant pipe and the drop height between the indoor and outdoor units meet the
requirements illustrated in the following diagram:
Summary of Contents for YDZC218
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