HTW L01 Service manual

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ENGLISH
L01
UHTW-DI-026L01 / HTW-DI-035L01 / HTW-DI-071L01 /
HTW-DI-090L01 / HTW-DI-105L01 / HTW-DI-120L01 /
HTW-DI-140L01 / HTW-DI-160L01
HTW-UO-026L01 / HTW-UO-035L01 / HTW-UO-071L01 /
HTW-UO-090L01 / HTW-UO-105L01 / HTW-UO-120L01 /
HTW-UO-140L01 / HTW-UO-160L01
OWNER’S AND INSTALLATION
MANUAL
DUCTS

DC Inverter U-match Series Duct Type Unit
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Decide the installation location with the customer as follows:
3.2.1 Indoor Unit
(1). Install the unit at a place where is strong enough to withstand the weight of the unit.
(2). The air inlet and outlet of the unit should never be clogged so that the airow can reach
every corner of the room.
(3). Leave service space around the unit as required in Fig.2.
Fig.2
(4). Install the unit where the drain pipe can be easily installed.
(5). The space from the unit to the ceiling should be kept as much as possible so as for more
convenient service.

DC Inverter U-match Series Duct Type Unit
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3.2.2 Outdoor Unit
WARNING!
① .
Install the unit where it will not be tilted by more than 5°.
② .
During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed
securely.
(1). If possible, do not install the unit where it will be exposed to direct sunlight. (If necessary,
install a blind that does not interfere with the air ow.)
(2). Install the outdoor unit in a place where it will be free from getting dirty or getting wet by
rain as much as possible.
(3). Install the outdoor unit where it is convenient to connect the indoor unit.
(4). Install the outdoor unit where the condensate water can be drained out freely during
heating operation. Do not place animals and plants in the path of the warm air.
(5). Take the air conditioner weight into account and select a place where noise and vibration
are small.
(6). Install the outdoor unit where is capable of withstanding the weight of the unit and
generates as less noise and vibration as possible.
(7). Provide the space shown in Fig.3, so that the air flow is not blocked. Also for efficient
operation, leave three of four directions of peripheral constructions open.
Units: mm
＞500
＞500 ＞500 ＞500
＞2000
＞2000
＞1000
Fig.3
3.3 Connection Pipe Requirement
CAUTION!
The maximum length of the connection pipe is listed in the table below. Do not place the units between
which the distance exceeds the maximum length of the connection pipe.

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Table 3
Max. Height
Difference between
Indoor Unit and
Outdoor Unit (m)
Item Pipe(Inch)
Model Liquid Gas
HTW-DI-026L01 HTW-UO-026L01 1/4 3/8 20 15 Φ20X1.2
HTW-DI-035L01 HTW-UO-035L01 1/4 3/8 20 15 Φ30X1.5
HTW-DI-052L01 HTW-UO-052L01 1/4 1/2 20 15 Φ30X1.5
HTW-DI-071L01 HTW-UO-071L01 3/8 5/8 30 15 Φ20X1.2
HTW-DI-090L01 HTW-UO-090L01 3/8 5/8 30 15 Φ20X1.2
HTW-DI-105L01 HTW-UO-105L01 3/8 5/8 30 15 Φ20X1.2
HTW-DI-120L01 HTW-UO-120L01 3/8 5/8 50 30 Φ20X1.2
HTW-DI-140L01 HTW-UO-140L01 3/8 5/8 50 30 Φ20X1.2
HTW-DI-105L01 HTW-UOT3-105L01 3/8 5/8 30 15 Φ20X1.2
HTW-DI-120L01 HTW-UOT3-120L01 3/8 5/8 50 30 Φ20X1.2
HTW-DI-140L01 HTW-UOT3-140L01 3/8 5/8 50 30 Φ20X1.2
HTW-DI-160L01 HTW-UOT3-160L01 3/8 3/4 50 30 Φ20X1.2
Max.
Pipe
Length
(m)
Drainage
pipe(Outer
Diameter × wall
thickness) (mm)
Size of Fitting
① .
The connection pipe should be insulated with proper water-proof insulating material.
② .
The pipe wall thickness shall be 0.5-1.0mm and the pipe wall shall be able to withstand the
pressure of 6.0 MPa.The longer the connecting pipe, the lower the cooling and heating effect
performs.
3.4 Electrical Requirement
Electric Wire Size and Fuse Capacity.
Table 4
Indoor Units Power Supply Fuse Capacity Breaker Capacity Min. Power Supply
Cord
V/Ph/Hz A A mm2
09K~60K 220-240V~ 50Hz 5 6 1.0
Table 5
Model
HTW-UO-026L01
HTW-UO-035L01
HTW-UO-052L01
HTW-UO-071L01
HTW-UO-090L01
HTW-UO-105L01
HTW-UO-120L01
HTW-UO-140L01
HTW-UOT3-105L01
HTW-UOT3-120L01
HTW-UOT3-140L01
HTW-UOT3-160L01
Power
Supply
Capability of Air
Switch(A)
Minimum Sectional Area of Power Cable
and Earth line (mm2)
220-240V
～50Hz
13 1.5
13 1.5
16 1.5
20 2.5
20 2.5
25 2.5
25 2.5
40 6.0
380-415V 3N ～
50Hz
10 1.5
10 1.5
16 1.5
16 1.5

DC Inverter U-match Series Duct Type Unit
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Note:
① .
The fuse is located on the main board.
② .
Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units
(Both indoor unit and outdoor unit).The appliance must be positioned so that the plug is
accessible.
③ .
The specications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
④ .
The specifications of the power cable listed in the table above are applied to the conduit-
guarded multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and
a PVC cable jacket) used at 40°С and resistible to 90°С(see IEC 60364-5-52). If the working
condition changes, they should be modied according to the related national standard.
⑤ .
The specifications of the breaker listed in the table above are applied to the breaker with
the working temperature at 40°С. If the working condition changes, they should be modied
according to the related national standard.
⑥ .
Take 2 pieces of power cord of 0.75mm2as the communication lines between indoor and
outdoor unit, with their longest lengths of 50m. Please select the appropriate line length as per
the actual installation conditions. The communication lines can not be twisted together. For
the unit (≤30K), it’s recommended to use 8m long communication line.
⑦ .
Take 2 pieces of power cord of 0.75mm2as the communication lines between the wired
controller and the indoor unit, with their longest lengths of 30m. Please select the appropriate
line length as per the actual installation conditions. The communication lines can not be twisted
together. It’s recommended to use 8m long communication line.
⑧ .
The wire size of the communication line should be no less than 0.75mm2. It’s recommended to
take 0.75mm2power cords as the communication line.
4 Installation of the Unit
4.1 Installation of the Indoor Unit
4.1.1 Indoor unit dimension
WARNING!
① .
Install the indoor unit in a location which can withstand a load of at least ve times the weight
of the main unit and which will not amplify sound or vibration.
② .
If the installation location is not strong enough, the indoor unit may fall and cause injuries.
③ .
If the job is done with the panel frame only, there is a risk that the unit will come loose. Please
take care.

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For the units: 09~18K
J
B
H
I
G
F
Max
Air intake
E
D
C
Max
A
For the units: 24~42K
J
I
H
G
B
F
A
E
C
D
Gas Pipe Liquid Pipe
Drainage Pipe Electric Box
Air Intake
Max
Max

DC Inverter U-match Series Duct Type Unit
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For the units: 48k,60k
J
H
A
B
D
E
G
I
F
C
Fig.4
Table 6
Item
Model A B C D E F G H I J
HTW-DI-026L01 840 561 635 790 925 665 738 125 203 250
HTW-DI-035L01
945 618 738 892 1037 721 738 125 203 266
HTW-DI-052L01
HTW-DI-071L01
1101 517 820 1159 1279 558 1002 160 235 268
HTW-DI-090L01
HTW-DI-105L01
1011 748 820 1115 1226 775 979 160 231 290
HTW-DI-120L01
HTW-DI-140L01
1177 646 852 1150 1340 750 953 190 316 350
HTW-DI-160L01

DC Inverter U-match Series Duct Type Unit
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4.2 Installation of the Outdoor Unit
WARNING
① .
Install the unit where it will not be tilted by more than 5°.
② .
During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed
securely.
4.2.1 Outdoor unit dimension
D
A
B
C
E
Fig.11
Table 6 Unit: mm
Item
Model ABCDE
HTW-UO-026L01
HTW-UO-035L01 848 320 540 540 286
HTW-UO-052L01 955 396 700 560 360
Fig.10

DC Inverter U-match Series Duct Type Unit
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HTW-UO-071L01
HTW-UO-090L01 980 427 790 610 395
HTW-UO-105L01
HTW-UOT3-105L01 1107 440 1100 631 400
HTW-UOT3-120L01
HTW-UO-120L01
HTW-UO-140L01
HTW-UOT3-140L01
958 412 1349 572 376
HTW-UOT3-160L01 1085 427 1365 620 395
4.2.2 Condensate Drainage of the Outdoor Unit(Only for the heat pump unit) (Fig.12)
(1). It is required to install a drain pipe for the outdoor unit to drain out the condensate water
during heating operation. (only for the heat pump unit)
(2). When installing the drain pipe, apart from the drain pipe mounting hole, all other holes
should be plugged so as to avoid water leakage.(only for the heat pump unit)
(3). Installation Method: Insert the pipe joint into the hole φ25 located at the base plate of the
unit and then connect the drain pipe to the pipe joint.
Bottom Drain cap
Drain pipe mounting hole
Fig.12

DC Inverter U-match Series Duct Type Unit
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4.3.3 Connecting the Pipe at the Indoor Unit Side
Detach the caps and plugs from the pipes.
CAUTION!
① .
Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is
improper, the flare nut cannot be tightened smoothly. If the flare nut is forced to turn, the
threads will be damaged.
② .
Do not remove the are nut until the connection pipe is to be connected so as to prevent dust
and impurities from coming into the pipe system.
Centering the pipe against port on the indoor unit, turn the are nut with your hand.
CAUTION!
Hold the torque wrench at its grip, keeping it in the right angle with the pipe as shown in Fig. 15,
in order to tighten the are nut correctly.