Lennox 4 Series Installation Manual page 4

1.0. PREFACE
Please carefully read this manual before installation and operation. When reading this manual, please
be aware of the following key user notices:
• This unit measures based on AS/NZS 60335.2.40:2006
• For your personal safety when operating this system, always follow the instructions in the manual.
• The total capacity of the indoor units which runs at the same time cannot exceed that of the
outdoor units; otherwise the cooling (heating) performance of each indoor unit will be affected.
Table 1: Minimum and Maximum Number of Connectable Units
Minimum number of connectable indoor units
Maximum number of connectable indoor units
Minimum capacity of connectable indoor units
Maximum capacity of connectable indoor units
• Switch the main power on 8 hours before starting the unit for a successful startup.
• It is a normal operation that the indoor unit fan will still run for 20~70 seconds after the indoor unit
receives the "stop" signal to make full use of after-heat for the next operation.
• When the running modes of the indoor and outdoor units are in conflict, this will be indicated on
the wired controller display for five seconds and then the indoor unit will stop. The unit will return
to normal operation by harmonizing their running modes: the cooling mode is compatible with the
dehumidifying mode and the fan mode can operate in all modes. If the supply power fails when
the unit is running, the indoor unit will send the "start" signal to the outdoor unit three minutes after
power recovery.
4
Model
LENNOX MULTI SPLIT INVERTER
LNMT100V4
2
4
18
48
13 23 50
Outdoor Unit
LNMT114V4
2
5
18
51
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