Ecolab Nexa User manual
Nexa™
January, 2014
Table of Contents
…………………………………………………….
Installation and Operation……..p 2
Frequently Asked Question……p 11
Troubleshooting……………….. p 14
Nexa™ Customer Service Reference Guide January 2014 Page 2
CONFIDENTIAL
Installation and Operation
1. Unpacking
Items included in the package:
•Classic Dispenser
•3 “D” cell batteries (Classic Touchfree Dispenser)
•I/O manual
•Install Kit (1-packs only)- 2 screws and 2 wall mounts
Remove the dispenser from the shipping box and remove the protective bag from the
dispenser.
2. Opening Cover
Find the cover release button at the top of the dispenser.
Push down on the button with your index finger and rotate the front cover down.
3. Installation: TF dispensers Only
CAUTION:
a. The bottom of the dispenser should be mounted about 15cm above horizontal
surfaces. Shorter distances may be acceptable depending on the reflectivity of
the surface over which the dispenser is being mounted.
b. Do not install in showers or in direct contact with water. The dispenser can be
installed by using screws, anchors and tape.
Note: Manual dispensers can be installed near water, however we highly recommend
screw mounting if this is done.
COVER RELEASE
BUTTON
Nexa™ Customer Service Reference Guide January 2014 Page 3
CONFIDENTIAL
4. Installing unit with screws, anchors and tape
The dispenser is designed to match many of the screw holes of Ecolab’s and some
competitive dispensers. By positioning the dispenser appropriately on the wall, it may
be possible to use the previous anchor locations. For ADA compliance, mount between
15” and 48” off the ground. In order to comply with UL962, the TF dispensers are
required to be mounted using screws.
A. Clean and thoroughly dry the wall that the dispenser is to be mounted to.
Alcohol wipes work well for hard surfaces such as ceramic tile.
B. Use # 10 screws and appropriate anchors (use at least 2 screws to secure
the dispenser to the wall and space them out as far as possible).
C. Place the unit against the wall at the desired location. Using the holes on the
back of the dispenser as a template, mark the wall with a pencil or sharp
object (you must puncture the tape).
D. Use an appropriate size drill bit for the anchors, drill the holes.
E. Insert anchors into the holes.
F. Remove the protective backing on the tape that is affixed to the back of the
dispenser. Ensure proper location. Mount the unit at the desired location by
pressing unit against mounting surface.
G. Open the front cover and apply pressure to the back plate for at least 30
seconds to assure a good bond between the tape and the wall.
H. Insert the screws into the anchors.
MOUNTED WITH 2
SCREWS AND
WALL MOUNTS
MOUNTING HOLE
PATTERN
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CONFIDENTIAL
5. Battery Installation (For Touch-Free Dispensers)
Three batteries are included to power the unit and are already installed in the battery
compartment. In order to activate the device,
→pull and remove the battery pull tab that is sticking out from the battery compartment.
6. Battery Replacement (For Touch-Free Dispensers)
a. open the front cover
b. unscrew the 2 thumbscrews attaching the battery cover
c. Remove the old batteries
d. insert fresh batteries into the battery compartment using the battery orientation
sticker as a guide.
e. Make sure battery cover is replaced and the thumbscrews are fully tightened.
a b/e c d
BATTERY PULL TAB
BATTERY
ORIENTATION
STICKER
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CONFIDENTIAL
7. Dispenser Status Indicator (For Touch-Free Dispensers)
An LED is visible through the cover (lower left side) of the dispenser. The following is a
list of indicators and status:
•Green flashes once every 0.5 seconds for up to 5 seconds: Device has just received
power
•One green flash: Dispense has occurred
•Red flash every 2.5 seconds:
oLow batteries, change batteries as soon as possible (see above)
oReset require - removal of battery cover and replacement (see above)
•Three quick red flashes upon attempted activation–Low batteries, unit will not operate
•No LED (dispenser will not work) - Batteries are not installed properly or require
changing, confirm battery pull tab is removed
•No LED (dispenser works) - The LED is defective
Nexa Light Codes
Yellow/green repeated blinks
Just received power,-number of blinks corresponds to
program on UTM (3 blinks, pause, 3 blinks=revision 3.3)
Single yellow/green blink
Sensor triggered- dispense should occur immediately after
Low Battery Mode: Slow red blinking light (2.5 seconds
between) and still flashes yellow/green and dispenses when
hand is placed in sensor range.
Low battery indicator- Requires 3 sequential voltage readings
below the low battery threshold to turn on. Should have
1000+ dispenses remaining until shutdown mode will occur.
Red light will not turn off until dispenser is reset.
Shutdown Mode: Slow red blinking light (2.5 seconds
between) and dispenser does not dispense. When hand is
placed in sensor range, you will receive 3 quick red blinks.
Dead battery indicator- Requires 3 sequential voltage readings
below the dead battery threshold to turn on. Red light will
not turn off until dispenser is reset.
Timeout indicator- The dispenser will attempt to dispense for
10 seconds. If it cannot complete a single dispense cycle
(return to home position) after 2 dispense attempts, it will go
into shutdown mode the next time it is able to return home.
However, if after 5 dispenses, it has still not returned home, it
will also go into shutdown mode. This prevents unnecessary
wear on the gears and suggests the dispenser is jammed, has
very low batteries, or the battery cover is not fully secured.
Red light will not turn off until dispenser is reset.
**To reset dispenser- remove battery cover completely and replace
DISPENSER STATUS
INDICATOR
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CONFIDENTIAL
8. Product Bottle Installation/Removal
a. Open the dispenser cover
b. Remove the protective cap from the end of the pump on the bottle.
c. Invert the bottle and insert the bottle flat against the back of the dispenser with
the label facing forward. The collar on the pump is inserted into the pump
holder on the dispenser.
d. Close the cover
e. Place a hand under the dispenser and activate the dispenser multiple times
until the pump is primed and product is dispensed into the hand.
f. When the product package is empty, follow step 2 to open the cover. Once the
cover is open grasp the sides of the bottle and pull straight out.
CORRECT POSITION
WRONG WRONG WRONG
PROPER DOCKING- PUMP
COLLAR IS BETWEEN UPPER AND
LOWER FLANGES
RIGHT SIDE OF PUMP
COLLAR IS TOO LOW
PUMP COLLAR IS TOO LOW-
BELOW LOWER FLANGE
PUMP IS NOT PUSHED BACK
FAR ENOUGH
PUMP COLLAR
UPPER AND
LOWER FLANGES
(ON BOTH SIDES)
REMOVE
PROTECTIVE CAP
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CONFIDENTIAL
Cleaning Instructions
The exterior can be cleaned with a non-abrasive detergent and non-abrasive sponge or
cloth.
9. Dose Adjustment
The dosing amount can easily be switched between low and high dose.
a. To switch the dosing amout you must remove the bottle (if it is already in the
dispenser),
a. Remove the dose adjuster by pinching the 2 sides.
b. Flip the dose adjuster 180 degrees and reinstall to the same location it came
from.
c. There is a vertical mark on the dose adjuster that will then point to the chosen
dosing amount
Low Dose (one droplet)
High Dose (two droplets)
Liquid
~ 1.0 ml
~ 1.4 ml
DISPENSER WITH LOW DOSE
PINCH SIDES TO REMOVE
INDICATOR LINE-
POINTS TO THE
DROPLETS
ONE/TWO
DROPLET
MARKS
Nexa™ Customer Service Reference Guide January 2014 Page 8
CONFIDENTIAL
Drip Tray
The drip tray can be ordered as an accessory item (included for field testing).
a. It attaches to the bottom of the dispenser by snapping the 2 hooks into the
openings on the bottom of the dispenser.
b. The drip tray can be further secured to the wall by using adhesive tape on the
back.
c. It is easiest to insert the drip tray if you insert one hook in first and rotate the drip
tray to snap the other hook in place.
PROPERLY SEATED IN
PLACE
RIGHT HOOK SEATED,
ROTATING LEFT HOOK
HOOKS DIRECTLY
BELOW OPENINGS
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CONFIDENTIAL
10. Lock and Key
The optional lock and key kit can be used to lock the dispenser.
a. The lock can be inserted at the top of the backplate. There is a vertical mark on
the lock that points to lock/unlock graphics on the backplate.
b. You can switch between the two configurations by rotating the lock 180 degrees.
c. If the dispenser is locked, you must open it using the key provided in the kit or a
paperclip.
d. The key or paperclip can be inserted into the hole on the top exterior of the
backplate and this will allow the cover to open.
INDICATOR LINE-
POINTS TO LOCKED OR
UNLOCKED
LOCKED
UNLOCKED
KEY OPENING
KEY AND PAPERCLIP
LOCK STRADLES THIS
BEAM
Nexa™ Customer Service Reference Guide January 2014 Page 10
CONFIDENTIAL
11. Nameplate (badge)
The dispenser comes with a badge already inserted into the designated badge holder.
There are also product specific badges available by request. If you choose to replace
the generic badge with a product specific badge, please bend the tab on the new
badge.
Mounting Frame –NOT INCLUDED IN FIELD TEST
The mounting frame is an optional accessory that can be used to cover existing wall
damage around where the dispenser is being installed. There are 4 different mounting
frames- white and black of the classic and compact sizes. The same mounting frame
will work on either (TF or manual) dispenser. To mount the dispenser with the mounting
frame you will use the tape provided in the mounting frame kit. Using the notches in the
tape on the back of the dispenser as a guide, tape the mounting frame to the dispenser.
This will temporarily make the mounting frame and the dispenser a single unit. You can
then install the dispenser as you would normally. Then mounting frame will not be
physically attached to the wall- it is pinched between the wall and the dispenser.
BENT TAB
MOUNTING FRAME
AND DISPENSER
AS SINGLE UNIT
TAPE
NOTCHES
TAPE PLACED IN
NOTCHES
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