System Outline; Terminology - AirStage UTY-RLRG Operating Manual

■ SYSTEM OUTLINE

Terminology

System related terms
(a) Heat recovery system:
The indoor unit connects to the outdoor unit via an RB
unit (Refrigerant Branch unit) in this system. RB units
of single type and 4-system multi type are available .
Indoor units connected to RB units of a different system
perform cooling operation and heating operation simul-
taneously. An indoor unit connected to an outdoor unit
without going through an RB unit are for cooling only.
(b) Heat pump system:
This is standard system. Indoor units connected to the
same outdoor unit do not perform cooling operation and
heating operation simultaneously.
(c) RB Group [For Heat Recovery System only]:
A group of indoor units connected to a single type RB
unit or each system of a multi type RB unit. Cooling op-
eration and heating operation are not performed simul-
taneously in an RB Group.
(d) R.C. Group (Remote Controller Group):
This forms a group by connecting indoor units by remote
controller cable. Each 1 unit of ungrouped indoor unit
makes up an R.C. Group. It is the minimum unit of op-
eration.
(e) Refrigeration system:
This is a system composed of indoor units and outdoor
units connected by the same refrigerant piping.
(f) System:
This is 1, 2 or more Refrigerant Systems connected by
the same transmission cable.
(g) Central controller:
A central remote controller can control the multiple R.C.
Groups. There is a System Controller, Touch Panel Con-
troller, and a Central Remote Controller.
(h) Standard remote controller:
A standard remote controller is a remote controller
which controls 1 R.C. group. This unit corresponds to
this. This unit cannot be used together with a 3-wire
type Wired Remote Controller. A Wireless Remote Con-
troller can be used together with this unit.
Address related terms
(i) Refrigerant circuit address:
This is the ID individually assigned to each refrigerant
system and is used for control.
(j) Indoor unit address:
This is an ID individually assigned to each indoor unit.
(k) Remote controller address:
This is an ID individually assigned separately from the
indoor unit address to indoor units which form an R.C.
Group.
(l) 2-wire remote controller address:
This ID is used for control and is allotted to remote
controllers in R.C. Group formed by 2-wire type remote
controllers and indoor units. The ID consists of 3-digit
"System number" and 2-digit "Unit number".
IDs are automatically assigned if the remote controller
address of all indoor units in the R.C. Group are set to "0".
(m) System number:
Indicates types of unit in R.C. Group formed by 2-wire
type remote controllers.
001: Remote controller, 002: Indoor unit
(n) Unit number:
This number allotted to individual units in R.C. Group
formed by 2-wire type remote controllers. If 2-wire
remote controller address is set manually, numbers that
duplicate remote controller addresses in R.C. Group
cannot be used.
En-2