Fujitsu Airstage UTP-RX01AH User Manual

En-5
5.7.3. Fix the unit (When hanging on the wall)
Use the tapping screw B (accessories) to set up this unit.
6. PIPE INSTALLATION
6.1. Pipe selection

Select the pipe to connect to the RB unit.
Connection example 1
Outdoor
unit
Indoor
unit
(Liquid pipe)
Discharge
gas pipe
Gas pipe
RB
unit
Suction
gas pipe
Select the connection pipe from Table
2 below, based on the capacity of the
indoor unit connected downstream.
Connection example 2
Outdoor
unit
Indoor
unit
Indoor
unit
(Liquid pipe)
Select the connection pipe from Table 3
below, based on the total capacity of the
indoor unit connected downstream.
Discharge
gas pipe
RB
unit
Suction
gas pipe
Gas pipe

If the size of the selected pipe is different from the Table 1 below, use reducers (ac-
cessories) to make the diameters match.
RB unit
Gas pipe
Discharge
gas pipe
Suction
gas pipe
Reducer Reducer
Install the liquid pipe after referring to the outdoor unit installation manual for its diameter.
(1) UTP-RX01AH
Table 1) RB unit pipe size
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
ø12.7 (1/2") ø9.52 (3/8") ø12.7 (1/2")
Table 2) Connection pipe selection for when only 1 indoor unit is connected.
Indoor unit capacity
(kW)
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
2.2 ,2.8 , 3.6, 4.0, 4.5 ø12.7 (1/2") ø9.52 (3/8") ø12.7 (1/2")
5.6 ,7.1 ,8.0
ø15.88 (5/8")
+Reducer
ø12.7 (1/2")
+Reducer
ø15.88 (5/8")
+Reducer
Table 3) Connection pipe selection for when 2 to 3 indoor units are connected.
Total capacity of
indoor unit
(kW)
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
4.4 to 8.0 ø15.88 (5/8")
+Reducer
ø12.7 (1/2")
+Reducer
ø15.88 (5/8")
+Reducer
(2) UTP-RX01BH
Table 1) RB unit pipe size
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
ø19.05 (3/4") ø12.7 (1/2") ø19.05 (3/4")
Table 2) Connection pipe selection for when only 1 indoor unit is connected.
Indoor unit capacity
(kW)
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
2.2, 2.8, 3.6, 4.0, 4.5
ø12.7 (1/2")
+Reducer
ø9.52 (3/8")
+Reducer
ø12.7 (1/2")
+Reducer
5.6, 7.1, 8.0, 9.0
ø15.88 (5/8")
+Reducer
ø12.7 (1/2")
ø15.88 (5/8")
+Reducer
11.2, 12.5, 14.0 ø19.05 (3/4") ø12.7 (1/2") ø19.05 (3/4")
18.0 ø19.05 (3/4")
ø15.88 (5/8")
+Reducer
ø19.05 (3/4")
Table 3) Connection pipe selection for when 2 to 8 indoor units are connected.
Total capacity of
indoor unit
(kW)
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
4.4 to 11.1
ø15.88 (5/8")
+Reducer
ø12.7 (1/2")
ø15.88 (5/8")
+Reducer
11.2 to 13.9 ø19.05 (3/4") ø12.7 (1/2") ø19.05 (3/4")
14.0 to 18.0
ø22.22 (7/8")
+Reducer
ø15.88 (5/8")
+Reducer
ø22.22 (7/8")
+Reducer
(3) UTP-RX01CH
Table 1) RB unit pipe size
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
ø22.22 (7/8") ø19.05 (3/4") ø22.22 (7/8")
Table 2) Connection pipe selection for when only 1 indoor unit is connected.
Indoor unit capacity
(kW)
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
22.4 , 25.0 ø22.22 (7/8") ø19.05 (3/4") ø22.22 (7/8")
Table 3) Connection pipe selection for when 2 to 8 indoor units are connected.
Total capacity of
indoor unit
(kW)
Suction gas
pipe (mm (in))
Discharge gas
pipe (mm (in))
Gas pipe
(mm (in))
18.1 to 22.3 ø22.22 (7/8")
ø15.88 (5/8")
+Reducer
ø22.22 (7/8")
22.4 to 28.0 ø22.22 (7/8") ø19.05 (3/4") ø22.22 (7/8")
(4) Indoor unit model codes and model selection capacity
Model code 07 09 12 14 18 24 30 36
Indoor unit
capacity (Kw)
2.2 2.8 3.6
4.0
4.5
5.6 7.1
8.0
9.0
11.2
Model code 45 54 60 72 90
Indoor unit
capacity (Kw)
12.5 14.0 18.0 22.4 25.0
6.2. Selecting the pipe material
Copper pipes
It is necessary to use seamless copper pipes and it is desirable that the amount of
residual oil is less than 40 mg/10 m. Do not use copper pipes having a collapsed, de-
formed or discolored portion (especially on the interior surface). Otherwise, the expan-
sion valve or capillary tube may become blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using conventional
refrigerant (R22), it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in the table. Never use
copper pipes thinner than that in the table even when it is available on the market.
9366249047-03_IM.indb Sec1:59366249047-03_IM.indb Sec1:5 2015/3/10 14:27:472015/3/10 14:27:47

Fujitsu Airstage UTP-RX01AH Specifications

General

Brand	Fujitsu
Model	Airstage UTP-RX01AH
Category	Air Conditioner
Language	English