Yaasa Desk Four User manual

Yaasa
Desk Four
Extended original
operating instructions

2
Safety Measures, Residual Risk, and
Danger Notices
Yaasa Desk Four
ENGLISH TRANSLATION OF THE ORIGINAL OPERATING INSTRUCTIONS
The Yaasa Desk Four is an electronically-adjustable sit-stand table (table) for home and
ofce use. The Yaasa Desk Four with electronic height adjustment was tested to full the
requirements of safety, durability and stability according to EN 527-2:2016 + A1:2019.
Full operation and assembly instructions (instructions) are available on the Yaasa website
(www.yaasa.com).
Yaasa GmbH accepts no liability for damages or injuries that may ensue from incorrect
assembly or use of this table.
CAUTION
SAFETY NOTICE: Read all notices and instructions before the rst use of the product.
Pay attention to risks relating to burns, res, electrical shock or other damages
to people and property in order to minimize them. Save these instructions in the
vicinity of the table for quick access, if required. Pass these safety instructions on
to any subsequent users of the table. All persons who use the product or who are
responsible for installation, service, or repair work, must follow these instructions
ca refully.
ATTENTION: Basic safety measures should be taken whenever using electronic
devices. INAPPROPRIATE USE OR THE NEGLECT OF THESE
INSTRUCTIONS AND NOTICES WHEN USING THE TABLE CAN LEAD TO
SERIOUS INJURY OR PROPERTY DAMAGE.
This appliance can be used by children from 8 years and above and people
with reduced physical, sensory or mental capabilities or lack of experience
and knowledge if they have been given supervision or instruction concerning
the use of the appliance in a safe way and understand the hazards involved.
Children under the age of 8 must maintain a safe distance from the table, the
The table may only be used as an adjustable desk for changes between sitting and standing
positions. The table may only be used indoors and in dry areas (ofces or similar). Any other
use of this product is not recommended and occurs at the user’s own risk.
Appropriate Use

3
EN
control unit, and the buttons of the operational control.
The table may only be used for the purposes described in this manual.
Unauthorized access must be avoided!
The table may not be loaded with more than 100 kg. The table may not be operated
continuously for more than 2 minutes. After, the table must “rest” for 18 minutes
before it can be operated again.
The Yaasa Desk Four features a collision detection system (Intelligent System
Protection, ISP). The ISP Function aims to reduce system damage and injuries
through crushing. Responsibility for the appropriate use of the product lies with the
user.
Two people are required to complete assembly of the table. The instructions
must be followed completely at all times. Special care must be taken during the
movement of heavy parts and at any crushing or shearing points.
The height-adjustment function may only be used after the full and appropriate
assembly of the table.
The table must never be used as a lifting aid for people.
The table’s screw connections must be secured and checked in regular intervals.
The table and its components may not be changed, enhanced or rebuilt in any way.
Do not use parts that are not recommended by the manufacturer.
Never open electrical components, housing, or covers. This entails the risk of
electrical shock. Maintenance and repair work may only be performed by trained
personnel. Before cleaning or maintenance, disconnect all cables from the power
outlet.
While the table is being used, no one may stand or sit on the table, nor may they
climb or lie underneath it. During reset processes there is a risk of crushing
between the table legs and feet.
When the table moves upwards or downwards, you must maintain a safe distance
in order to avoid collisions or crushing between the table and its surrounding
objects or persons. The user requires an unobstructed view of the table and its
surroundings in order to observe the movement of the table and to avoid collisions,
injuries or damages while the table is in movement. Do not store objects under
the desk that are taller than 62 cm. While operating the table, pay close attention
to other people, as well as window frames, radiators, chairs, cabinets and other
furniture.
The power cable represents a trip hazard. Ensure that the cable routing allows for

4
2
1
EN
Setup and Use Of The Table
After assembly, the levelers on the feet must be adjusted so that the table stands evenly
and is stable.
Position the table in the vicinity of an outlet and plug in the power cable. The table is
now ready for use.
SITTING POSITION
Sitting incorrectly can damage your joints, tendons, and muscles. To avoid this, your desk and
ofce chair must be adjusted correctly. Regardless of these instructions, any uncomfortable
sitting position should be avoided.
If you nd that any instruction results in an uncomfortable sitting position, simply adjust the
positioning to suit your needs.
When setting the height of your ofce chair, ensure that the seat is adjusted correctly.
Optimally, your pelvis will be positioned at a right angle to your knees, but any angle between
90° and 100° is ideal. When adjusting the seat height of your ofce chair, your feet should be
rmly on the oor.
DESK HEIGHT
Do not adjust the desk height until you have found the correct sitting position. While sitting,
your elbows should be at a 90° to 120° angle when your forearms are on the tabletop. The
edge of the table should not press against your forearms.
EQUIPMENT ON THE TABLE TOP
Light shining onto your monitor (i.e. from windows and lights) should meet the screen surface
at a 90° angle. Adjust the monitor height so that your gaze is directed slightly downward,
toward the center of the screen. Stay 60 to 70 cm from your monitor. You can ensure a better
wrist position if the keyboard lies as at as possible.
the table’s entire range of movement and is not obstructed. The cable must be kept
away from heated surfaces. Ensure suitable cable routing for devices that are placed
on the table itself.
Keep liquids away from the table and its electronic components.
Do not use the table if:
• Cables or plugs are damaged
• The table does not work as described in the instructions
• The table has fallen over or is otherwise damaged
• The table has become wet
Ergonomic Work

5
EN
Functions
A complete description of the Yaasa Desk Four’s functions can be found in the operating
instructions on www.yaasa.com.
CHANGING THE TABLE HEIGHT
Press the arrow buttons on the handset in order to move the table upwards or downwards.
THE DESKTOP MOVES UP OR DOWN UNTIL YOU RELEASE THE KEY, OR UNTIL THE MAXIMUM
OR MINIMUM DESK HEIGHT IS REACHED.

6
EN
DUTY CYCLE
The table may not be operated for more than 2 minutes continually. If this limit is exceeded,
an 18-minute rest phase is triggered. After this pause, the table can be used as normal again.
Excessive use of the table may cause permanent damage to the electronic components and
void the warranty.
SAVING A MEMORY POSITION
This function saves a set table height. Each memory position button can be used to save one
memory position. To save a tabletop position, proceed as follows
Move the table to the desired height (e.g. 73 cm).
Press the Save button.
S - is shown on the display.
Press the desired memory position button, e.g. 2.
S 2 is shown on the display.
FAQs and Troubleshooting
Complete troubleshooting instructions and FAQs are available on www.yaasa.com.
The desired height is now saved to the corresponding memory position button. To move
the table to the saved position, press and hold the memory button until the table reaches the
desired height and stops.

7
Technical Characteristics
Frame: Powder-coated steel and
4 levelers with a M10 thread
Adjustment interval: 69 to 118 cm
Adjustment speed: 38 mm/s
Column Type 1 Stage
Max. load: 170 kg (evenly distributed)
Max. load: 100 kg
Sound level: Lw,A,max = 63dB(A)
Input: 230 V / 50 Hz / 3, 5 A
Switching Cycles: 2 Minutes on; 18 Minutes off
Additional Function(s): Collision Detection (ISP)
Plug type: F (3 m Cable Length)
Operational control: Up and down, with memory function and table height
display.
EN
SIZE (CM)
160x80
180x90
200x100
160x80
180x90
200x100
160x80
180x90
200x100
TABLE TOP MATERIAL
Bamboo
Bamboo
Bamboo
Multiplex with HPL laminate
Multiplex with HPL laminate
Multiplex with HPL laminate
Hardwood oak
Hardwood oak
Hardwood oak
PRODUCT WEIGHT (KG)
47, 2
52,0
57, 4
44,8
49,0
53,7
47,7
52,7
58,2
C
A B
D
F
E
35
42
53
1001 85
95
99

8
EN
Contact
For any problems or questions regarding the product, please contact the online shop from
which you bought the product by phone or email.
For all other information, recurring problems, or for further questions, please contact:
YAASA GmbH
Radlpass Straße 19
8502 Lannach, Austria
www.yaasa.com
[e-mail]
© YAASA GmbH
Disposal
Return and Guarantee
Right of exchange or return for up to 14 days after the receipt of goods.
Warranty of 2 years (in cases of normal use).
The product must be disposed of according to local regulations
for recycling. The separation of product waste contributes to
the reduction of incineration and landll disposal and reduces
potentially harmful effects on human health and the environment.

9
EN
EC/EU Declaration of Conformity
Manufacturer: YAASA GmbH
Radlpass Straße 19
8502 Lannach, Austria
Person authorized to compile Walter Koch
the technical documents: YAASA GmbH, Managing Director
Radlpass Straße 19
8502 Lannach, Austria
The manufacturer hereby declares, on its sole responsibility, that the following product:
Product name: Yaasa Desk Four
Product description: Electrically height-adjustable sit-stand desk
for ofce and home use
Type designation: Yaasa Desk Four
Serial number: see type plate
fullls all of the relevant provisions of the following directives:
• Directive (2006/42/EC) on machinery (Machinery Directive); as per Annex I Section 1.5.1
of the Machinery Directive, the safety goals of Directive (2014/35/EU) regarding electrical
equipment for use within certain voltage limits (Low-Voltage Directive) are also covered
• Directive (2014/30/EU) on electromagnetic compatibility
(Electromagnetic Compatibility Directive)
In particular, the following harmonized standards and/or technical specications were
applied:
• EN 527-2:2016 + A1:2019 • EN ISO 12100:2010
• EN 60335-1:2012 + A11:2014 + A13:2017 • EN 62233:2008
• EN 50663:2017 • EN 50581:2012
• EN 62479:2010 • EN 61000-6-1:2007
• EN 61000-6-3:2007 + A1:2011 • EN 61000-6-2:2005
• EN 61000-3-2:2014 • EN 61000-3-3:2013
Complete technical documentation is available. Operating instructions for the machines
have been provided in the original version. It is hereby conrmed that the abovementioned
products correspond to the stated EC/EU directives. This declaration shall become invalid if
the products are reworked or modied without our permission.
© YAASA GmbH

www.yaasa.com
YAASA GmbH
Radlpass Straße 19
8502 Lannach
REVISION 2
03/2023