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Space saving combination
Combination (HP)
Outdoor Unit 1 (HP)
Outdoor Unit 2 (HP)
Outdoor Unit 3 (HP)
Maximum Connectable Indoor Unit
Combination (HP)
Outdoor Unit 1 (HP)
Outdoor Unit 2 (HP)
Outdoor Unit 3 (HP)
Maximum Connectable Indoor Unit
When connecting outdoor units, install the outdoor unit with the largest nominal system
capacity nearest to the refrigerant pipe and indoor unit, followed by those with lesser
nominal system capacities. (Outdoor unit 1 ≥ Outdoor unit 2 ≥ Outdoor unit 3)
Energy-saving combination
Combination (HP)
Outdoor Unit 1 (HP)
Outdoor Unit 2 (HP)
Outdoor Unit 3 (HP)
Maximum Connectable Indoor Unit
Combination (HP)
Outdoor Unit 1 (HP)
Outdoor Unit 2 (HP)
Outdoor Unit 3 (HP)
Maximum Connectable Indoor Unit
* Means that the energy-saving combination is unavailable.
When connecting outdoor units, install the outdoor unit with the largest nominal system
capacity nearest to the refrigerant pipe and indoor unit, followed by those with lesser
nominal system capacities. (Outdoor unit 1 ≥ Outdoor unit 2 ≥ Outdoor unit 3)
2.5. Optional parts
The following parts are optional parts specific to R410A refrigerant.
Do not use parts other than those listed below.
2.5.1 RB unit
RB unit
Total cooling capacity of indoor unit [kW]
UTP-RX01AH
8.0 or less
UTP-RX01BH
18.0 or less
UTP-RX01CH
28.0 or less
18.0 or less (for 1 branch)
UTP-RX04BH
56.0 or less (Sum total of 4 branches) (*1)
8.0 or less (for 1 branch)
UTP-RX08AH
72.0 or less (Sum total of 8 branches)
8.0 or less (for 1 branch)
UTP-RX12AH
95.0 or less (Sum total of 12 branches)
2.5.2 Outdoor unit branch kit
Model
UTP-DX567A
2.5.3 Separation tube
Model
for 2 pipes
UTP-AX054A
UTP-AX090A
UTP-BX090A
UTP-AX180A
UTP-BX180A
UTP-AX567A
UTP-BX567A
2.5.4 Header
Model: for 2 pipes
3-6
3-8
branches
branches
branches
UTP-J0906A
UTR-H0906L
UTR-H0908L
UTP-J1806A
UTR-H1806L
UTR-H1808L
2.5.5 External connect kit
Model
For External input (CN131, CN133, CN134)
UTY-XWZXZ6
For External output
(Error status / CN136) (Operation status / CN137)
UTY-XWZXZF
For External input (CN135)
UTY-XWZXZ9
For External output (Base heater / CN115)
En-3
8
10 12 14 16 18 20 22 24 26 28
8
10 12 14 16 10 10 12 12 16 16
-
-
-
-
-
8
10 10 12 10 12
-
-
-
-
-
-
-
-
17 21 29 30 34 39 43 47 52 56 60
30 32 34 36 38 40 42 44 46 48
16 16 12 12 16 16 16 16 16 16
14 16 12 12 12 12 16 16 16 16
-
-
10 12 10 12 10 12 14 16
64 64 64 64 64 64 64 64 64 64
8
10 12 14 16 18 20 22 24 26 28
-
-
-
-
8
-
-
14
-
-
-
-
8
-
-
8
-
-
-
-
-
-
-
-
*
*
*
*
34
*
*
47 52 56 60
30 32 34 36 38 40 42 44 46 48
10 14 14 14 14 16 14 16
10 10 10 14 14 14 14 14
10
8
10
8
10 10 14 14
64 64 64 64 64 64 64 64
CAUTION
*1: In case of 2 RB
units connected
in series (total
8 branches),
maximum capac-
ity of connectable
indoor units is up to
56.0 kW.
Total cooling capacity of indoor unit [kW]
ALL
Total cooling capacity of
indoor unit [kW]
for 3 pipes
—
19.6 or less
28.0 or less
28.1 to 56.0
56.1 or more
Model: for 3 pipes
Total cooling capacity
3-6
3-8
of indoor unit [kW]
branches
UTP-J0908A
28.0 or less
UTP-J1808A
28.1 to 56.0
Usage
3. INSTALLATION WORK
Please obtain the approval of the customer when selecting the location of installation and
installing the main unit.
-
-
-
3.1. Selecting an installation location
Install the unit in a location that can withstand its weight, and where it will not topple or
fall.
Calculate the proper refrigerant concentration if you will be installing it in an enclosed
location.
Total amount of replenished refrigerant
in refrigerant facility (kg)
Capacity of smallest room where unit
is installed (m³)
If the results of the calculation exceed the concentration limit, increase the room surface
8
10 10
area or install a ventilation duct.
8
8
10
8
8
8
Select an installation location by observing the following precautions:
-
-
Install the unit level. (Within 3 degrees)
-
-
Install this unit in a location with good ventilation.
-
-
*
*
If the unit must be installed in an area within easy reach of the general public, install as
necessary a protective fence or the like to prevent their access.
Install the unit in an area that would not inconvenience your neighbors, as they could be
affected by the airflow coming out from the outlet, noise, or vibration.
If it must be installed in proximity to your neighbors, be sure to obtain their approval.
If the unit is installed in a cold region that is affected by snow accumulation, snow fall, or
freezing, take appropriate measures to protect it from those elements.
To ensure a stable operation, install inlet and outlet ducts.
Install the unit in an area that would not cause problems even if the drain water is
discharged from the unit. Otherwise, provide drainage that would not affect people or
objects.
Install the unit in an area that has no heat sources, vapors, or the risk of the leakage of
flammable gas in the vicinity.
Install the unit in an area that is away from the exhaust or vent ports that discharge
vapor, soot, dust, or debris.
Install the indoor unit, outdoor unit, power supply cable, transmission cable and remote
control cable at least 1 meter away from a television or radio.
The purpose of this is to prevent TV reception interference or radio noise. (Even if they
are installed more than 1 meter apart, you could still receive noise under some signal
conditions.)
Keep the length of the piping of the indoor and outdoor units within the allowable range.
For maintenance purposes, do not bury the piping.
3.2. Drain processing
• The drain water is discharged from the bottom of the equipment. Construct a drain ditch
around the base and discharge the drain water properly.
• When installing on a roof, perform floor waterproofing properly.
Drain processing:
• The drain water from the base of the
outdoor unit may generate during opera-
tions.
Perform drain processing, as necessary.
• When you want to prevent the drain water
from leaking at the perimeter, construct
a ditch for the drain water as shown in
the figure.
• Provide a central drain pan, as neces-
sary.
WARNING
Refrigerant concentration (kg/m³)
≤
(0.42 kg/m³)
CAUTION
Outdoor unit
50 mm
or more
10 mm or
more
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