Optional Parts; Operating Range; General Specification; Selecting Circuit Breaker And Wiring - Fujitsu 30RLXEH Installation Manual

2.4. Optional parts

Parts name
External connect kit
(for External input/output)

2.5. Operating range

Outdoor
Temperature

3. GENERAL SPECIFICATION

3.1. Selecting circuit breaker and wiring

Be sure to install a breaker of the specified capacity.
Regulation of cables and breaker differs from each locality, refer in accordance with
local rules.
Voltage rating
Operating range
Cable
Power supply cable
Connection cable
Select the correct cable type and size according to the country or region's regulations.
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.
MINIMUM CIRCUIT AMPACITY
MAX. CKT. BKR.
• Before starting work check that power is not being supplied to all poles of the indoor
unit and outdoor unit.
• Install all electrical works in accordance to the national standard.
• Install the disconnect device with a contact gap of at least 2/16 in. (3mm) in all poles
nearby the units. (Both indoor unit and outdoor unit)
• Install the circuit breaker nearby the units.

3.2. Selecting the pipe material

Do not use existing pipes.
Use pipes that have clean external and internal sides without any contamination which
may cause trouble during use, such as sulfur, oxide, dust, cutting waste, oil, or water.
It is necessary to use seamless copper pipes.
Material: Phosphor deoxidized seamless copper pipes.
It is desirable that the amount of residual oil is less than 40 mg/33ft (10m).
Do not use copper pipes that have a collapsed, deformed, or discolored portion
(especially on the interior surface). Otherwise, the expansion valve or capillary tube may
become blocked with contaminants.
Improper pipe selection will degrade performance. As an air conditioner using R410A
incurs pressure higher than when using conventional refrigerant, it is necessary to
choose adequate materials.
Note:
Thicknesses of copper pipes used with R410A are as shown in the table.
Never use copper pipes thinner than those indicated in the table even if they are available
on the market.
Thicknesses of Annealed Copper Pipes (R410A)
Pipe outside diameter [in. (mm)]
1/4 (6.35)
3/8 (9.52)
1/2 (12.70)
5/8 (15.88)
3/4 (19.05)
En-4
Model name
UTY-XWZXZ3
Cooling/Dry Mode Heating Mode
-5 to 115°F -15 to 75°F
(-20 to 46°C) (-26 to 24°C)
CAUTION
1 ø 208/230 V (60 Hz)
188-253 V
Description
2 cable + Earth (Ground), 1 ø 208/230 V
3 cable + Earth (Ground), 1 ø 208/230 V
CAUTION
CAUTION
Thickness [in. (mm)]
0.032 (0.80)
0.032 (0.80)
0.032 (0.80)
0.039 (1.00)
0.047 (1.20)

3.3. Protection of pipes

Protect the pipes to prevent the entry of moisture and dust.
Especially, pay attention when passing the pipes through a hole or connecting the end of
a pipe to the outdoor unit.
Location
Outdoor
Indoor

3.4. Refrigerant pipe size and allowable piping length

Keep the piping length between the indoor unit and outdoor unit within the allowable
tolerance.
Pipe diameter <Liquid/Gas>
(Standard)
Max. piping length (L1)
Min. piping length (L1)
Max. height difference (H1)
<Indoor unit to outdoor unit>
View (Example)
*1: For the standard pipe diameter.

3.5. For Pre-charge lengths

3.5.1. For Pre-charge lengths
25.6 A
30 A

3.6. If additional refrigerant is required

3.6.1. If additional refrigerant is required
• When the piping is longer than pre-charge length, additional charging is necessary.
• For the additional amount, see the table below.
Additional charging amount
Single type
L1 > Pre-charge length
Piping length
(20m)
Additional
None
charge

4. INSTALLATION WORK

Make sure to obtain the customer's approval for selecting and installing the outdoor unit.

4.1. Selecting an installation location

Securely install the outdoor unit at a location that can withstand the weight of the unit.
Otherwise, the outdoor unit may fall and cause injury.
Be sure to install the outdoor unit as prescribed, so that it can withstand earthquakes
and typhoons or other strong winds. Improper installation can cause the unit to topple or
fall, or other accidents.
Do not install the outdoor unit near the edge of a balcony. Otherwise, children may climb
onto the outdoor unit and fall off of the balcony.
Working period
1 month or more
Less than 1 month
-
CAUTION
[in. (mm)]
Indoor unit
Piping length (L) *Pre-charge
66ft. ( 20m )
196ft
66ft 99ft 131ft 165ft
(30m) (40m) (50m)
(60m)
3lb 8oz
14.2oz 1lb 12oz 2lb 10oz
(400g) (800g) (1200g)
(1600g)
WARNING
Protection method
Pinch pipes
Pinch or tape pipes
Pinch or tape pipes
3/8 (9.52) / 5/8 (15.88)
246 ft. (75 m)
16 ft. (5 m)
98 ft. (30 m)
L1
H1
229ft 246ft
Rate
(70m) (75m)
4lb 7oz 4lb 14oz
0.43oz/ft
(40g/m)
(2000g) (2200g)