Introduction; Safety Precautions; System Outline; Terminology - Fujitsu UTY-RNRYZ1 Operating Manual

INTRODUCTION

■ SAFETY PRECAUTIONS

• The "SAFETY PRECAUTIONS" indicated in the manual
contain important information pertaining to your safety. Be
sure to observe them.
WARNING
In the event of a malfunction (burning smell, etc.), imme-
diately stop operation, turn off the electrical breaker, and
consult authorized service personnel.
Do not repair or modify any damaged cable by yourself. Let
the authorized service personnel to do it. Improper work
will cause an electric shock or a fire.
When moving, consult authorized service personnel for
uninstallation and installation of this unit.
Do not touch with wet hands. It may cause an electric
shock.
If children may approach the unit, take preventive mea-
sures so that they cannot reach the unit.
Do not repair or modify by yourself. It may cause a fault or
accident.
Do not use flammable gases near the unit. It may cause a
fire from leaking gas.
Dispose of the packing materials safely. Tear and dispose
of the plastic packing bags so that children cannot play with
them. There is the danger of suffocation if children play
with the original plastic bags.
This appliance is not intended for use by persons (including
children) with reduced physical, sensory or mental capa-
bilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use
of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not
play with the appliance.
CAUTION
Do not set vessels containing a liquid on this unit.
Doing so will cause heating, fire or electric shock.
Do not expose this unit directly to water. Doing so will
cause trouble, electric shock or heating.
Do not place electrical devices within 1 m (40 in) of this
unit. It may cause malfunction or failure.
Do not use fire near this unit or place a heating apparatus
nearby. It may cause malfunction.
Do not touch the switches with sharp objects. Doing so will
cause injury, trouble, or electric shock.
Do not insert articles into the slit parts of this unit. Doing so
will cause trouble, heating, or electric shock.
En-3
This mark indicates procedures
which, if improperly performed,
might lead to the death or serious
injury of the user.
This mark indicates procedures
which, if improperly performed,
might possibly result in personal
harm to the user or damage to
property.

■ SYSTEM OUTLINE

1 Terminology

System related terms (♦ is for VRF system)
(a) VRF system ♦:
VRF (Variable Refrigerant Flow) is a large multi system
that effectively air conditions a wide variety of spaces
from large buildings to personal residences.
(b) Other system:
Multi or single type air conditioning system other than
VRF system.
(c) Heat recovery system ♦:
The indoor unit connects to the outdoor unit via an RB
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 simultaneously. An indoor unit
connected to an outdoor unit without going through an
RB unit are for cooling only.
(d) Heat pump system:
This is standard system. Indoor units connected to the
same outdoor unit do not perform cooling operation and
heating operation simultaneously.
(e) RB Group [for heat recovery system] ♦:
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.
(f) R.C. Group (Remote Controller Group):
This forms a group by connecting indoor units by
remote controller cable. One unit of ungrouped indoor
unit makes up an R.C. Group. It is the minimum unit of
operation.
(g) Refrigeration system:
This is a system composed of indoor units and outdoor
units connected by the same refrigerant piping.
(h) System ♦:
This is 1, 2 or more refrigerant systems connected by
the same transmission cable.
(i) Central controller ♦:
A central remote controller can control multiple R.C.
Groups. There is a system controller, Touch panel con-
troller, and a central remote controller.
(j) 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 control-
ler can be used together with this unit.
Address related terms
(k) Indoor unit address ♦:
This is an ID individually assigned to each indoor unit.
(l) Remote controller address:
This is an ID individually assigned separately from the
indoor unit address to indoor units which form an R.C.
Group.