Knoll 400 User manual

Reff Profiles Height Adjustable Electric
Stroke 400/420
User Manual
Knoll, Inc.
Customer Service
1235 Water Street
East Greenville, PA 18041

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 2©Knoll, Inc.
Contents
1 IMPORTANT INFORMATION - SAFETY FIRST! 3
1.1 Important Saftey Instructions 4
1.2 User Information 6
1.3 Before You Start 6
1.4 Electrical Rating 6
2 Assembly & Adjustment 7
2.1 Assembly Instructions 7
2.2 Setup Procedure 7
2.3 Optional Mounting Guidelines 8
2.4 System Conguration (Example) 8
2.5 Adjustments 9
3 Operation Instructions 10
3.1 Basic Functions 10
3.2 Advanced Functions, Manual Reset 11
3.3 CDS (Collision Detecting System) 11
4 Maintenance & Repairs 12
4.1 Cleaning, Inspection and Storage 12
4.2 User Maintenance 12
4.3 Repairs 12
4.4 Servicing of Double-Insulated Products 13
5 Appendix 14
5.1 Dimensions Column System: Reff Poles Height Adjustable
Column with 420 Stroke 14
5.2 Dimensions Column System: Reff Poles Height Adjustable
Column with 400 Stroke 14
5.3 Accessories 15

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 3©Knoll, Inc.
Your safety and the safety of others are very important.
Please familiarize yourself with all instructions and safety
warnings before operating the table. Please keep this
manual for future reference.
To help you make informed decisions about safety,
we have provided operating procedures and other
information on labels and in this user’s manual. This
information alerts you to potential hazards that could
hurt you or others. It is not practical or possible to warn
you about all the hazards associated with operating
or maintaining a table. Please use your own good
judgment.
You will find important safety information in a variety of
forms. Safety Messages are preceded by a safety alert
symbol and one of three signal words: DANGER,
WARNING, or CAUTION. These safety messages are
listed in order of severity, identify the general risks and
what actions you are to take to avoid the risks. These
signal words mean:
DANGER
Indicates an imminent hazard with a high risk of serious
injury or death.
WARNING
Indicates a potential hazard that could result in serious
injury.
CAUTION
Indicates a potentially hazardous situation, which could
result in minor or moderate injury. It may also be used to
alert against unsafe practices.
NOTICE
Indicates an alert to call attention to proper assembly
instructions or particular operation procedures to assure
correct equipment function and to avoid equipment
damage or wear.
The information and specifications included in this
manual were in effect at the time of approval for printing.
Knoll reserves the right to discontinue or change
specifications or design at anytime without notice and
without incurring any obligation whatsoever.
1. Important Information—Safety First!

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 4©Knoll, Inc.
Please save these instructions.
When using an electrical table, basic precautions should
always be followed, including the following:
Read all instructions before using table.
DANGER—To reduce
the risk of electric
shock:
1. Always unplug this furnishing from the electrical outlet
before cleaning.
WARNING—To reduce
the risk of burns, fire,
electric shock, or
injury to persons:
2. Unplug from outlet before putting on or taking off
parts.
3. This table is not intended for use by children or
individuals with a physical or other impairment, which
may affect the ability to safely operate equipment.
4. Use this table only for its intended use as described
in these instructions. Do not use attachments not
recommended by the manufacturer.
5. Never operate this table if it has a damaged cord or
plug, if it is not working properly,
if it has been dropped or damaged, or exposed
to water. In such event please return the table to a
service center for examination and repair.
6. Keep the cord away from heated surfaces.
7. Never operate the table with the air openings
blocked. Keep the air openings free of lint, hair, and
the like.
8. Never drop or insert any object into any opening.
9. Do not use outdoors.
10. Do not operate the table in a potentially explosive
atmosphere.
11. To disconnect, turn all controls to the off position,
then remove plug from outlet.
WARNING—Risk of
electric shock
1. Connect this table to a proper outlet only. For loading
always put heavier items at the bottom and not at
the top in order to help prevent the possibility of the
furnishing tipping over.
WARNING—Risk of
injury to persons
1. Do not use this table to lift people and do not use this
table to lift heavy parts or use this table as a platform
for storage.
2. The frame can lift 265 lbs exclusive of table top and
attachments. See Reff Profile Planning Guide for
functional load rating.
1.1 Important safety instructions. Please save these instructions.

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 5©Knoll, Inc.
DANGER—Risk of
electric shock, injury,
or death
1. Improper usage, abuse, or misuse of the power supply,
handset, motors and other electrical components may
result in an electrical shock injury or possible death.
2. Do not open the power supply unit or handset under
any circumstances. The power supply and handset
contain no serviceable parts.
3. Do not modify or make any changes to the power
supply, handset or other electrical devices.
4. During installation, repair, cleaning, or maintenance
work, the power cable must be disconnected from
the outlet.
5. The motors control unit is not designed for
continuous operation. Changing the desktop position
without interruption must not exceed the duty cycle
indicated on the power supply. The unit is thermally
protected and will temporarily shut down if use
exceeds the duty cycle. Allow a 9-minute cooling
period for the control unit to reset.
6. The power supply unit may only be operated with
voltage as specified on the power supply label.
7. Only use the power cord supplied with the power
supply. Check that it is not damaged. Do not operate
the power supply unit if the power cord is damaged.
8. Connect the power supply to a proper outlet only. To
disconnect turn all controls to the off position, then
remove plug from outlet.
9. In the event of a malfunction (e.g. if the control unit
keeps adjusting the desk because a movement
button has jammed), please unplug the unit
immediately.
10. Do not expose the power supply, handset or other
electrical device to water or other liquids including
moisture, drips, splashes or spills. Only clean
electrical device with a dry cloth.
11. Do not operate the power supply, handset or other
electrical device in a potentially explosive atmosphere.
Do not operate where aerosol spray products are
being used or where oxygen is being administered.
Do not use the desk with if it has been dropped or
damaged. Contact the manufacturer for examination
or repair.
12. It is It is not allowed to connect self-constructed
products to the power supply, handset or other
electrical device. To prevent damage, use only
components recommended by the manufacturing
company.
WARNING—Risk
of injury, or death
1. During the raising or lowering of the table there exists
a risk of squeezing or pinching between the moving
desktop and fixed objects.
2. The necessary safety margins depend on the greatest
type of injury risk that can be predicted. Where
possible small pinch points exist (i.e. fingers) use at
least a one inches (2,5 cm) safety margin and for body
or head (especially where children may be present)
use a minimum of 16 inches (41 cm) count from the
floor or from their top of the table feet if that is relevant.
3. During the lowering or rising of the desktop, the
operator must ensure that no person or object risk
being harmed by the operation.
4. This tag (at right) should be located on
the table during the initial installation.
5. Keep children away from moving parts
and underneath the table.
6. The intended use of the table is for
adjusting a work surface between sitting
and a standing position. The table is not
designed for other uses.
7. The table must only be operated while in an upright
position and must under no circumstances be
operated while upside down.
8. The table must not be overloaded. The maximum
allowable load is shown on the power supply label.
9. The table must be operated in a dry, enclosed space,
such as an office or similar.
10. Do not operate outdoors.
11. The table is equipped with Collision Detection
System (CDS). In the event of a faulty component
(i.e. motor or handset) the desktop may move
slightly before the safety feature is engaged. Stay
clear of pinch points when the desktop is moving.
12. This table is not intended for use by individuals
(including children) with limited physical, sensory or
mental abilities or with a lack of experience and/or
lack of expertise, unless they are supervised by a
person responsible for their safety or have received
instructions from that person on how to use the
control unit.
13. Children must be supervised at all times to ensure
that they do not play with the control unit.
14. The table may not be used to lift people. Do not sit
or stand on a table while it is be raised or lowered.
15. The table must not be structurally or technically
altered or modified in any way.

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 6©Knoll, Inc.
1.2 User Information
The frame can lift 265 lbs exclusive of table top and
attachments. See Reff Profile Planning Guide for
functional load rating. The motors may only be used
continuously for 1 minute after which the table wills
automatically shut-off for 9 minutes.
Typical Product Label with Date of Manufacture
Typical Power Supply Label
.
1.3 Before you start:
Check for and remove obstacles in path of the table top.
Before first use, the control unit must register the lowest
point of elevation. Do a manual reset as listed in section
3.2. Under normal conditions the system communicates
internally and knows the position of each column. If
there are differences in column height, please do a
manual reset as listed in section 3.2.
1.4 Electrical rating
Electrical rating, input: 120VAC, 50-60Hz, 3.2A.
Output 35V.

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 7©Knoll, Inc.
2.1 Assembly Instruction
The official assembly instructions can be found with the
base components. Make sure to ask your desk vendor
for an approved combination of desktop and frame.
2.2 Setup procedure
CAUTION—Risk of
electrical shock
The main power cord must be unplugged during the
setup. To setup the table:
1. Connect the handset to a 3-pin motor/motor house
or to Bus cable socket.
P/N: KR3AF4102, KR3AF4103
1. Connect the Bus cable between each motor/motor
house.
P/N: KR3AE4027, KR3AE4028, KR3AE4029,
KR3AE4030, KR3AE4089
(length 31 ½", 47", 63", 78", 94 ½")
1. Connect the power supply to the motor/motor house.
P/N: KR68003761
1. Assemble the power cord to the power supply.
P/N: KR68005498
2. The table is ready for use, connect the power cord to
the outlet.
2. Assembly & Adjustment

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 8©Knoll, Inc.
2.3 Optional mounting guidelines
NOTICE
When disconnecting components such as the power
supply, Bus cable or the handset, the strain relieve hook
must be pressed before removing the connector. When
inserting the connector, an audible “click” indicates that
the strain relieve hook has correctly re-engaged.
DANGER—Grounding
instruction
This product does NOT require grounding to
earth. This product is double insulated and equipped
with a polarized 120V plug and 2-conductor cord. The
plug must be plugged into an
appropriate building outlet that is
properly installed in accordance
with all local codes and
ordinances. Please read section
4.4 as well.
DANGER – Risk of
electrical shock
Improper connection of the equipment can result in a
risk of electric shock. Check with a qualified electrician
for any concerns. Do not modify the plug provided
with the product—if it will not fit the outlet have a
proper outlet installed by a qualified electrician.
This product is designed for the voltage indicated on
the power supply label. No adapters should be used
with this product.
CAUTION—Risk of
electrical shock
Risk of electrical shock.
Before you plug in the power cord, check the following
again:
• The voltage must be as specified on the power
supply label.
• When the power cord is plugged in, the electrical
control devices are operational.
NOTICE
In case of a power failure or if the power cord is
unplugged during the movement of the drives, a manual
reset may be necessary! See section 3.2
2.4 System configuration
(example)
The figure below shows a configuration example
consisting of:
1 Power Supply
2 Bus cable
3 Handset
4Control unit

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 9©Knoll, Inc.
2.5 Adjustments
The table control, handset and motors are sealed units
and have no parts that can be serviced or adjusted by
the user. In case of failure/unexpected operation or for
maintenance please contact your vendor or arrange for
service by a qualified technician.

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 10©Knoll, Inc.
To ensure safe operation of the Intelligent Desk control unit,
please observe the following safety instructions:
CAUTION—Risk of
injury and electric
shock
Keep children away from electric height-adjustable
desks, control units and handset.
CAUTION—Risk
of pinching
When you change the desktop position, you must
ensure that no people or objects are located in the
hazardous area nor may reach into it.
NOTICE
In case of a main power breakdown, or if the power
cord is unplugged during the movement of the drives, a
manual reset may be necessary! Please see
section 3.2.
NOTICE
The control unit might be damaged by power surges.
Unplug the power cord during a thunderstorm or if you
do not intend to use the desk for a longer period.
3.1 Basic functions
NOTICE
You must read the user manual carefully before installing
or operating the control unit.
If chosen handset doesn’t fit to this user manual, please
see separate user manual for actual handset.
3.1.1 Upward Desktop Movement
This function enables the upward adjustment of
the work surface. To change its position, proceed
as follows: Press the desktop up button and continue to
hold until desired desktop height is reached.
NOTICE
The desktop will continue moving upwards until you
release the button or the maximum height is reached
3.1.2 Downward Desktop
Movement
This function enables the downward adjustment of
the work surface. To change its position, proceed
as follows: Press the desktop down button and continue
to hold until desired desktop height is reached.
3Operation Instructions

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 11©Knoll, Inc.
3.2 Advanced Functions, Manual
Reset / Homing
If a motor (or electronic) has been disconnected from the
column, during or after the assembly, a reset (homing)
cycle MUST be performed. A reset (homing) cycle
should be made with work surface attached.
1 Simultaneously pressing the up and
down buttons for minimum of 8 seconds.
2 Press and hold the down button and the
table will slowly move the lowest point
possible.
3.3 CDS (Collision Detecting
System)
This table is equipped with a Collision Detection feature
designed to avoid possible
severe injury due to pinching. When the table detects
a sudden change in resistance (force) equal to
approximately 120 lb (55 kg) the CDS will stop the
movement of the table and reverse approximately 1 inch
(25 mm). CDS works in both directions, i.e., upwards
and downwards. Remove the obstacle prior to operating
the table again. The CDS will be active again as soon as
the table has been moved (up or down) 3.15 inches (8
cm).
CAUTION—Risk
of pinching
The Collision Detection System (CDS) is a last resort
safety feature and is not designed to detect and prevent
all possible pinching and injuries. The effectiveness
of the CDS is effected by the speed of the table, the
location of the table top and the density of obstruction.
Even in the event that the CDS is activated it may
not completely prevent injury and all possible safety
measures should be taken in order to prevent possible
injury.
CAUTION—Risk
of pinching
The Collision Detection System (CDS) is not enabled
during all resets and limit position calibration.

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 12©Knoll, Inc.
4.1 Cleaning, Inspection and
Storage
1 Clean the table frame by wiping it down with a
microfiber cloth. Never use solvent or abrasive or
corrosive compounds.
2 Products must be cleaned at regular intervals to
remove dust and dirt and inspected for mechanical
damage and normal wear and tear. Worn-out parts
must be replaced.
3 Unplug the power cord if you do not intend to use the
desk for a long period.
4 Do not store table or cables in direct sunlight
4.2 User Maintenance
Products are closed units and require no internal
maintenance. Columns must be inspected at
attachment points, wires, cabinet, and plugs, check that
columns function correctly.
• Inspect columns for loose connections and damaged
plugs/wires.
• Inspect power supply for loose connections and
damaged plugs/wires.
• The power supply and the handset is sealed and
maintenance free.
4.3 Repairs
Check all screws and bolts after the first week of use
and tighten screws and bolts where necessary to ensure
safe operation of the table. If the table cannot be raised
or lowered, check the cable connection between:
• The power supply and the motor/motor house
(column system).
• The handset and the motor/motor house.
• The columns/motors.
If the table still does not operate, the control system may
have triggered the overheating or duty cycle protection.
Please wait for at least 9 minutes and try again before
proceeding.
If a control unit is replaced, a manual reset is required.
Follow the steps in section 3.2.
If the table is still not operational, please contact your
vendor for further assistance.
The control system is equipped with safety features; the
intermittency function and the overheating protection
and memory function
Duty cycle function – The duty cycle factor of the
table 1:9 meaning 1 minute of operation must be
followed by 9 minutes of inactivity. If this limitation is
exceeded, the table will become inoperable until the
control box resets automatically.
Overheating protection – The table will become
inoperable if the overheating protection is triggered and
will return to operation automatically once the heat has
dissipated sufficiently.
Memory function – The control system (each column)
will retain information
regarding the elevation of the table at all times. This
information will remain stored even in case of power
failure or if the power cable is disconnected from the
power outlet.
Soft start – Progressive acceleration allows for soft
starts and stops.
Speed – the speed of the table varies with load.
4 Maintenance & Repairs

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 13©Knoll, Inc.
4.4 Servicing of double-insulated
products
In a double-insulated product, two systems of insulation
are provided instead of grounding. No grounding means
is provided on a double-insulated product, nor is a
means for grounding to be added to the product.
Servicing a double-insulated product requires extreme
care and knowledge of the system, and is to be done
only by qualified service personnel.
Replacement parts for a double-insulated product
must be identical to the parts they replace. A double
insulated product is marked with the words ”DOUBLE
INSULATION” or ”DOUBLE INSULATED”. The symbol
(square within a square) is also able to be marked on the
product.

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 14©Knoll, Inc.
5.1 Dimensions Column System:
Reff Pofiles Height
Adjustable Column with
420 Stroke
Suitable for:
Classic Desk (RCHB\RCHT)
5.2 Dimensions Column System:
Reff Pofiles Height Adjustable
Column with 400 Stroke
Suitable for:
• Executive Desk (REDB\REDT)
• Classic Peninsula (RHPRD)
• Progressive Peninsula (RHPPD)
5 Appendix
MAX LEVEL MAX LEVEL
MIN LEVEL MIN LEVEL
40 3/4"
[1035mm]
MIN 1 3/16" [29.5mm]
MAX 1 3/8" [30.5mm]
25"
[635mm]
40 3/4"
[1035mm]
MIN 1 3/16" [29.5mm]
MAX 1 3/8" [30.5mm]
25"
[635mm]

Reff Proles Height Adjustable Electric Stroke 400/420 User Manual 15©Knoll, Inc.
5.3 Accessories
Handset: Standard P/N: KR3AF4102
Width x depth x height 2 1/8" x 3" x 1 1/4", 1.07 oz.
Handset: Digital P/N: KR3AF4103
Width x depth x height 5 7/16" x 3" x 1 1/4", 2.47 oz.
Power Supply: P/N: KR68003761
Length x width x height 6" x 2 5/16" x 1 5/16", 12.63 oz.
Power Cable:
118" 4.89 oz. P/N: KR68005498
Cable length 19 ½" (secondary side, xed connected to the power supply)
Bus Cable:
Length 31 ½" 0.92 oz. P/N: KR3AE4027
Length 47" 1.59 oz. P/N: KR3AE4028
Length 63" 2.26 oz. P/N: KR3AE4029
Length 78" 2.82 oz. P/N: KR3AE4030
Length 94 ½" 3.40 oz. P/N: KR3AE4089