5 | About the units and options
Installer reference guide
25
RZAG71~140N
Sky Air Alpha-series
4P695307-1A – 2024.02
5.3.1 Possible options for the outdoor unit
Refrigerant branch kit
When connecting multiple indoor units to the outdoor unit, you need one or more
refrigerant branch kits. The outdoor‑indoor combination determines which and
how many refrigerant branch kits to use.
Layout Model name
Twin KHRQ(M)58T
Triple KHRQ(M)58H
Double twin KHRQ(M)58T (3×)
For more selection details, see the catalogues. For installation instructions, see the
installation manual of the refrigerant branch kit.
Bottom plate heater (EKBPH140N7)
▪ Prevents freeze-up of the bottom plate.
▪ Recommended in areas with low ambient temperature and high humidity.
▪ For installation instructions, see the installation manual of the bottom plate
heater.
Demand adaptor kit (SB.KRP58M52)
▪ Includes the additional mounting plate (EKMKSA2)
▪ Can be used for the following:
- Low noise: To lower the operation sound of the outdoor unit.
- I-demand function: To limit the power consumption from the system (example:
budget control, limit power consumption during peak moments…).
▪ For installation instructions, see the installation manual of the demand adaptor
kit.
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