Specifications - Carrier 38QUS014DS2 series Installation Manual

4. SPECFICATIONS
Table 4.1
Number of units that can be
used together
Compressor stop/start frequency
Power source voltage
Table 4.2
Max. length for all rooms
Max. length for one indoor unit
Max. height different between
indoor and outdoor unit
Max. height different between indoor units
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:
Outdoor unit
Connected units
Stop time
voltage fluctuation
voltage drop during start
interval unbalance
1 drive 2 1 drive 3
OU higher than IU
OU lower than IU
1-5 units
3 min or more
within ±10% of rated voltage
within ±15% of rated voltage
within ±3% of rated voltage
30 45
25 30
15 15
15 15
10 10
Indoor unit
15m
Indoor unit
15m
Indoor unit
Unit: m
1 drive 4 1 drive 5
60 75
35 35
15 15
15 15
10 10
Max.Height
difference
10m
GB-8 7