Symmetry TDH14P User manual

Assembly Instructions 6/19/2018
Step 1: Remove kit from the box. The kit includes
frame&columns assembly, two feet, two end brackets,
hardware pack, power cord, memory keypad.
Step 2: Insert the end brackets at the end of the frame.
Step 3: Rotate the columns in upright position. Lock the 4
bolts (already attached) that secure the motor housing for
each of the column using the allen wrench supplied with the
hardware pack.
Step 4: Attach and lock the feet with 4 bolts each (bolts
already in position) using the supplied allen wrench
Step 5: Place the frame assembly over the underside of the
table top. Extend the frame to the desired length. Tighten the
telescoping frame after extending it.
Step 6: Attach the frame assembly to the top using the
supplied wood screws that go in the holes provisioned with a
rubber gasket. Attach the memory keypad to the front of the
top with the two smaller wood screws provided. Attach the
power cord. Tuck all excess cords in the frame. Flip the table
to the normal position and reset it before the first use.
Resetting the table: Press the up & down buttons at the
same time for 3 seconds. Continue pressing until the columns
are in the lowest position. When finished resetting, the control
box will make a sound and the buttons can be released. Now
the system is operational.

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Contents
Contents............................................................................................................................................................................................. 2
1. User Interface Guide ................................................................................................................................................................. 3
2. Reset............................................................................................................................................................................................ 4
3. Adjusting the Height.................................................................................................................................................................. 5
4. Setting the Memorized Position................................................................................................................................................ 5
5. Setting the upper and lower height limit ................................................................................................................................. 6
6. Presetting the Desk Starting Height......................................................................................................................................... 7
7. Switching Metric and Imperial Unit ........................................................................................................................................ 8
8. Error Codes................................................................................................................................................................................ 9
9. Power Saving Function - Waking up the Control................................................................................................................... 9

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1.User Interface Guide
3-digit display shows the height
of the desk
Memory setting buttons
Up and down buttons

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2.Reset
1. Simultaneously press + and – for 3 seconds. Continue pressing the buttons until both columns are
in lowest position. When finishing reset, the control box makes a beep sound and the buttons can be released.
Reminders:
When conducting reset, the display shows “E00” in last 5mm stroke.
When finishing reset, the display shows starting height.
Users must conduct reset when the desk is operated at the first time.

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3.Adjusting the Height
Press + or – button until the desk reaches the preferred height.
4.Setting the Memorized Position
TDH14P supports at most 4 memory positions.
How to memorize position:
1. Adjust the desk to the desired height.
2. Press the preferred memory button (1 ,2 ,3 or 4), with either + or – for 2 seconds. Once the display shows P1 or
P2 or P3 or P4, the position is memorized.
3. Press and hold button 1, 2, 3 or 4 to move the desk to memorized position.

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5.Setting the upper and lower height limit
A. Setting upper height limit:
(1) Adjust the desk to the preferred height of upper limit.
(2) Press + and – buttons together and then release – button within 3 seconds. (Note1)
(3) Re-press – for more than 3 times in a slow pace.
(4) A beeping sound will notify you that the process has completed.
B. Disable upper limit of height:
(1) Move the desk to the height of upper limit that is being set.
(2) Repeat the operation above #2~5 to disable the upper limit setting.
C. Setting lower height limit:
(1) Adjust the desk to the preferred height of lower limit.
(2) Press + and – buttons together and then release + button within 3 seconds. (Note 1)
(3) Re-press + for more than 3 times in a slow pace.
(4) A beeping sound will notify you that the process has completed.
D. Disable lower limit of height:
(1) Move the desk to the height of lower limit that is being set.
(2) Repeat the operation above #2~5 to disable the lower limit setting.
Note 1: Over 3 seconds will direct to “Reset” mode.

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6.Presetting the Desk Starting Height
(1) Press – button until the desk reaches its lowest position and then release – button.
(2) Re-press – button again for 5 seconds and the digital display will start to flash.
(3) Adjust the starting height number with + or – button. Release + or – button as reaching the preferred starting
height.
(4) After 10 seconds, the display will stop flashing and this will confirm that you have successfully set the starting
height.

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7.Switching Metric and Imperial Unit
(1) Press memory button 1, 2 and 4 for 5 seconds.
(2) The digital display will show “C-I” or “C-E”. (as below image) If there is no further instruction operated within
5 seconds, the system will go to the normal operation mode.
How to choose metric unit
Press the button #2, the digital display will show “C” to stand for centimeter.
How to choose imperial unit
Press the button #3, the digital display will show “E” or “I” to stand for inch.

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8.Error Codes
The digital display shows the error code below to suggest the issues that users may encounter during the operation.
Error code
Descriptions
000
Resetting
E00
Not reset completely
E01
Overuse protection
E02
Unbalance protection
E03
Anti-collision
E04
T-touch Protection
E11
M1 Motor over-current protection
E12
M2 Motor over-current protection
E13
M3 Motor over-current protection
E21
No Hall sensor from M1
E22
No Hall sensor from M2
E23
No Hall sensor from M3
E31
No current from M1
E32
No current from M2
E33
No current from M3
9.Power Saving Function - Waking up the Control
When no button has been pressed for 25 seconds, display goes off. Press any button to light up the display again.
When no button has been pressed for 30 seconds, the system goes to <0.1W standby mode (note 2). Long press
any button to wake the system up. The digital display will show desk height again.
Note 2: It depends on the control box whether it support 0.1W standby mode or not.