AirStage ABYA018GTEH Manuel d'installation - Page 8
Parcourez en ligne ou téléchargez le pdf Manuel d'installation pour {nom_de_la_catégorie} AirStage ABYA018GTEH. AirStage ABYA018GTEH 15 pages.
Imprimer la pageB. Under ceiling type
Be sure to arrange the drain hose so that it is leveled lower than the drain hose connect-
ing port of the indoor unit.
GOOD
Arrange the drain hose
Drain hose
lower than this portion.
When drain hose is arranged backward.
Secure the drain hose with the VT wire.
VT wire
hole
Pass the drain hose
through here.
6. ELECTRICAL WIRING
Electrical work must be performed in accordance with this Manual by a person
certifi ed under the national or regional regulations. Be sure to use a dedicated circuit
for the unit. An insuffi cient power supply circuit or improperly performed electrical work
can cause serious accidents such as electric shock or fi re.
Before starting work, check that power is not being supplied to the all units.
Use the included connection cables and power cables or ones specified by the
manufacturer. Improper connections, insuffi cient insulation, or exceeding the allowable
current can cause electric shock or fi re.
For wiring, use the prescribed type of cables, connect them securely, making sure
that there are no external forces of the cables applied to the terminal connections.
Improperly connected or secured cables can cause serious accidents such as
overheating the terminals, electric shock, or fi re.
Do not modify the power cables, use extension cables, or use any branches in the
wiring. Improper connections, insufficient insulation, or exceeding the allowable
current can cause electric shock or fi re.
Match the terminal board numbers and connection cable colors with those of the
outdoor unit (or RB unit). Erroneous wiring may cause burning of the electric parts.
Securely connect the connection cables to the terminal board. In addition, secure the
cables with wiring holders. Improper connections, either in the wiring or at the ends of
the wiring, can cause a malfunction, electric shock, or fi re.
Always fasten the outside covering of the connection cable with the cable clamp. (If
the insulator is chafed, electric discharge may occur.)
Securely install the electrical box cover on the unit. An improperly installed electrical
box cover can cause serious accidents such as electric shock or fi re through exposure
to dust or water.
Install sleeves into any holes made in the walls for wiring. Otherwise, a short circuit
could result.
Install an earth leakage breaker. In addition, install the earth leakage breaker so that
the entire AC main power supply is cut off at the same time. Otherwise, electric shock
or fi re could result.
Always connect the earth (ground) cable.
Improper earthing (grounding) work can cause electric shocks.
Install the remote controller cables so as not to be direct touched with your hand.
Perform wiring work in accordance with standards so that the air conditioner can be
operated safely and positively.
Connect the connection cable fi rmly to the terminal board. Imperfect installation may
cause a fi re.
If the supply cable is damaged, it must be replaced by the manufacturer, its service
agent or similarly qualifi ed persons in order to avoid a hazard.
En-7
PROHIBITED
Base (Bottom)
Intake grille
Drain hose
Cut the grille
WARNING
Earth (Ground) the unit.
Do not connect the earth (ground) cable to a gas pipe, water pipe, lightning rod, or a
telephone earth (ground) cable.
Improper earthing (grounding) may cause electric shock.
Do not connect power supply cables to the transmission or remote controller terminals,
as this will damage the product.
Never bundle the power supply cable and transmission cable, remote controller cable
together.
Separate these cable by 50 mm or more.
Bundling these cables together will cause miss operation or breakdown.
When handling PCB, static electricity charged in the body may cause malfunction of
the PCB. Follow the cautions below:
VT wire
• Establish an earth (ground) for the indoor and outdoor units and peripheral
(Accessories)
devices.
• Cut power (breaker) off.
• Touch metal part of the indoor unit for more than 10 seconds to discharge static
electricity charged in the body.
• Do not touch terminals of parts and patterns implemented on PCB.
6.1. Electrical requirement
• Select the power cable type and size in accordance with relevant local and national
regulations.
• Specifi cations for local wiring power cord and branch wiring are in compliance with local
code.
• Max. wire length: Set a length so that the voltage drop is less than 2%. Increase the wire
diameter when the wire length is long.
Breaker should be installed at every refrigerant system. Do not use a breaker in a different
refrigerant system.
Refer to the table for the breaker specifi cations of each installation condition. Perform the
power crossover wiring within the range of the same refrigerant system. When the crossover
wiring is done, make a connection for indoor units to satisfy conditions A and B below.
A. Current breaker requirements
AB*A012GTEH
AB*A014GTEH
AB*A018GTEH
AB*A024GTEH
MCA: Minimum Circuit Ampacity
MFA: Main Fuse Ampacity
When the power crossover wiring is done, make it so that the total of the MCA of the
connected RB units and indoor units does not exceed the 15 A. For RB unit MCA, refer to
the RB unit installation manual.
If the capacity of connected RB units and indoor units exceeds the upper limit, either add
breakers or use a breaker with a greater capacity.
B. Earth leakage breaker requirements
30 mA, 0.1 sec or less
100 mA, 0.1 sec or less
* Heat pump type: indoor units, Heat recovery type: indoor units and RB units.
** If the 100 mA capacity breaker is not provided, split the quantity of the indoor units into
small groups of 44 units or less and provide a breaker with capacity of 30 mA for each
group.
6.1.1. Cable specifications
Follow the specifi cations below for the power supply, transmission and remote controller
cable.
Power supply cable
Transmission cable
Remote controller cable
(2-wire type)
*: Use shielded cable in accordance with local rules for remote controller cable.
CAUTION
Voltage rating
Operating range
Model
MCA
0.3 A
0.41 A
0.69 A
0.84 A
* Maximum connectable "indoor units" or
Breaker capacity
Recommended
2
cable size (mm
)
Type 60245
2.5
IEC57 or equiva-
lent
LONWORKS
0.33
compatible cable
Sheathed PVC
0.33 to 1.25
cable*
230 V
198 to 264 V (50 Hz)
198 to 253 V (60 Hz)
MFA
20 A
"indoor units + RB units"
44 or less
45 to 148 **
Cable type
Remark
2 Cable + earth (ground)
22 AWG LEVEL 4
(NEMA) non-polar 2
core, twisted pair solid
core diameter 0.65 mm
Non-polar 2 core, twisted
pair