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About the units and options
Installer and user reference guide
56
REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
Model
Description
REYA8~20
Heat recovery model for single or multi-use
REMA5
Heat recovery model for multi-use only
Depending on the type of outdoor unit which is chosen, some functionality will or
will not exist. It will be indicated throughout this installation manual and brought to
your attention. Certain features have exclusive model rights.
These units are intended for outdoor installation and aimed for heat pump
applications including air to air applications.
These units have (in single use) heating capacities ranging from 25 to 63 kW and
cooling capacities rating from 22.4 to 56 kW. In multi combination the heating
capacity can go up to 90 kW and in cooling to 80 kW.
The outdoor unit is designed to work in heating mode at ambient temperatures
from –20°C WB to 15.5°C WB and in cooling mode at ambient temperatures from –
5°C DB to 46°C DB.
15.3 System layout
WARNING
The installation MUST comply with the requirements that apply to this R32
equipment. For more information, see
"16 Special requirements for R32
INFORMATION
Not all combinations of indoor units are allowed, for guidance, see
57].
INFORMATION
The following figure is an example and may NOT completely match your system
layout
a
c
d
f
h
e
d
c
c
d
g
h
h
b
a
Heat recovery outdoor unit
b
Branch selector (BS)
c
VRV direct expansion (DX) indoor unit
d
Remote controller in
normal mode
e
Remote controller in
alarm only mode
f
Remote controller in
supervisor mode
(mandatory in some situations)
g
iTM (optional)
h
Option PCB (optional)
Refrigerant piping
Transmission and user interface wiring
