Air Techniques VACUUM EQUALIZER User manual

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VACUUM EQUALIZER
OPERATOR’S MANUAL

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Safety Instructions ................................................................ 2
Introduction......................................................................... 3
Warranty ............................................................................. 3
On-Line Warranty Registration .............................................. 3
Key Part Identification........................................................... 4
Site Requirements ................................................................ 5
Physical Characteristics ........................................................ 6
Installation Information......................................................... 7
Changing Settings................................................................ 14
Trouble Shooting ................................................................. 18
Parts List / Replacement Parts................................................ 19
Optional Accessories ........................................................... 19
TABLE OF CONTENTS
Use of the Vacuum Equalizer not in conformance with the instructions
specified in this manual may result in permanent failure of the unit.
WARNING: To prevent fire or electrical shock, do not expose this
appliance to rain or moisture.
All user serviceable items are described in the mainte-
nance sections.
Manufacturing date code on serial number label is in the format
MONTH YYYY.
Earth ground.
This symbol alerts the user that important
Operating and Maintenance instructions
have been included with the unit. Read
carefully to avoid any problems.
SAFETY INSTRUCTIONS
Markings.
The following terms or symbols are used on the equipment or in this manual
to denote information of special importance:

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Congratulations on the purchase of your new Vacuum Equalizer. The
Vacuum Equalizer is an electronically controlled device that regulates
the vacuum level in your dental facility. While conserving electricity and
prolonging the life of your pumps the Vacuum Equalizer is capable of
controlling 2 to 4 vacuum pumps that can be turned “OFF” and “ON”
using low voltage remote switch. The Vacuum Equalizer is easily installed
and requires no scheduled maintenance.
The Vacuum Equalizer is warranted to be free from defects in material
and workmanship from the date of installation for a period of 24 months.
Any item returned to our factory in New York through an Air Techniques'
Dealer, will be repaired or replaced at our option at no charge provided
that our inspection shall indicate it to have been defective. Dealer labor,
shipping and handling charges are not covered by this warranty.
This warranty does not apply to damage due to shipping, misuse, careless
handling or repairs by other than authorized service personnel. Warranty
void if installed or serviced by other than Authorized Air Techniques’
Dealer service personnel. Air Techniques, Inc. is not liable for indirect
or consequential damages or loss of any nature in connection with this
equipment.
This warranty is in lieu of all other warranties expressed or implied. No
representative or person is authorized to assume for us any liability in
connection with the sale of our equipment.
WARRANTY
INTRODUCTION
Quickly and easily register the Vacuum Equalizer on-line. Just have
your product model and serial numbers available. Then go to the Air
Techniques web site, www.airtechniques.com, click the warranty
registration link and complete the registration form. This on-line
registration ensures a record for the warranty period and helps us keep
you informed of product updates and other valuable information.
ON-LINE WARRANTY REGISTRATION

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KEY PARTS IDENTIFICATION
VACUUM IN
LOW VOLTAGE
WIRING OUT
TO PUMP
LOW VOLTAGE
CONTROL PANEL
SWITCH
AC POWER IN
(Line Cord or Hardwire)
KNOCKOUTS
CIRCUIT
BREAKERS
LED
INDICATORS (4)
BYPASS
SWITCHES (4)
DOOR RETAINER
1/4 TURN
SCREWS
MAIN
POWER
SWITCH
RJ45 REMOTE PANEL
SWITCH JACK
(Class 2 Wiring Only)

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KEY PARTS IDENTIFICATION
DIP SWITCH
SETTINGS
LABEL
DIP
SWITCHES
LOW VOLTAGE
PUMP TERMINAL
BLOCK
CONTROL PANEL
SWITCH TERMINAL
BLOCK
AC MAINS
TERMINAL BLOCK
TRANSDUCER
FILTER
GROUND
TERMINAL BLOCK
Electrical Input
Wire size AWG #12 to #14 300V minimum permissible
Voltage 100-240 VAC
Frequency 50/60 Hz
Current 1.0 A
Environment Conditions:
Operating Conditions Indoor use at altitudes up to 2000m
Temperature 5° to 40° C (41° to 104° F).
Maximum relative humidity 80% for
temperatures up to 31° C, decreasing
linearly to 50% relative humidity at 40° C.
Supply voltage fluctuation of +/- 10%
of nominal voltage.
IEC 61010 Classification Class II Installation Category
2 Pollution Degree
SITE REQUIREMENTS

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The Vacuum Equalizer can automatically turn up to 4 pumps “ON” and
“OFF” depending on the vacuum demand. If a single pump turns "ON"
and "OFF" three times within an hour, that pump will be locked into the
“ON” position for another hour before returning to normal operation.
The Vacuum Equalizer is also equipped with 4 bypass switches to man-
ually turn the corresponding pump “ON”.
When the Vacuum Equalizer is turned “ON” the primary pump is cho-
sen. Each time the unit is turned “OFF” then back “ON” the primary
pump changes to the next pump in sequence. This allows each pump to
have more equal run times.
Note:
Allow 6 Inches for Wiring
Connections on Left Side.
PHYSICAL CHARACTERISTICS

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Installation
The Vacuum Equalizer is designed for easy flexible installation. It can
be mounted to a wall (preferred) or simply laid flat on a sturdy level
surface. The unit also provides adaptable wiring options. It can be hard
wired directly to AC mains or connected using an optional line cord kit
(P/N 56106). Either way the connection is made, the wiring can be
routed to the side, bottom, or back of the unit via one of three panel
knockouts provided.
Wall Mounting
Refer to the figure below and mount he Vacuum Equalizer to the wall
by performing the following steps.
1. Find a suitable location for the unit.
2. Use Wall Mount Template P/N 56108 to locate position for the 3
mounting holes.
3. Drill three 1/4” holes at designated position for #10 Anchors.
4. Screw unit to wall using supplied Anchors and Screws.
WALL
MOUNT
HOLES
INSTALLATION INFORMATION

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Hard Wiring Unit To Mains
To hardwire the unit to mains, feed wires through one of the 3 knock-
out openings and connect the 3 wires to the Mains Terminal Block and
Ground Terminal Block as shown below.
INSTALLATION INFORMATION
BLK (H)
WHT (N)
STRAIN RELIEF
AC MAINS
TERMINAL
BLOCK
GROUND
TERMINAL
BLOCK
GRN (GND)
STRAIN
RELIEF NUT
Installing Optional Line Cord
To install optional Line Cord, route the Line Cord with Strain Relief
through one of the 3 knockout holes and connect the 3 wires to the
Mains Terminal Block and Ground Terminal Block as shown below.
Block Wiring Diagram
Connections To Mains
Pump Setup
Open front cover by turning the two Door Retaining Screws 1/4 turn
counter clockwise. Each pump in the system should have its two wires fed
through a strain relief on the side of the unit starting with pump 1. Once
the wires are through the strain relief they should be tightened down in
the Terminal Block for the corresponding pump. Refer to Pump Select in
the Changing Settings section if you have more than (2) pumps in your
system.
GRN
(GND)
GROUND
TERMINAL
BLOCK
BLK (H) WHT (N)
AC MAINS
TERMINAL
BLOCK

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Instructions for using the Vacuum Equalizer with VacStar & STS units:
1. The vacuum relief valve on all units controlled by the Vacuum Equalizer
must be set to the same vacuum level. Set vacuum relief valve on each
unit using the same vacuum gauge.
2. The vacuum relief valve on the pumps must be set higher than the
high vacuum setting of the Vacuum Equalizer. (i.e. if the high setting
on the Vacuum Equalizer is set to 9 in-Hg the vacuum relief valve on
the pumps should be set to 10 In-Hg).
3. The low vacuum setting on the Vacuum Equalizer can be set to 6, 7 or
8 in-Hg, depending on what the end user requires.
4. The delay on and delay off time settings of the Vacuum Equalizer can
be set to their lowest values for the greatest electric and water savings.
Note that if a pump turns “ON” and “OFF” three times within an
hour it will stay powered on for an additional hour before returning to
normal operation. If this happens repeatedly it may be beneficial to
increase the delay off time to prevent this from happening.
Instructions for using the Vacuum Equalizer with VacStar NEO units:
1. Up to four VacStar 20 NEO or four VacStar 40 NEO or two VacStar
50 NEO or two VacStar 80 NEO unit can be controlled by the Vacu-
um Equalizer.
2. All the units must be the same. Do not mix VacStar NEO models.
3. The vacuum settings on all the VacStar NEO pumps must be set to the
same value.
4. The vacuum setting on the VacStar NEO pumps must be set to 1
in-Hg higher than the high vacuum setting of the Vacuum Equalizer.
(i.e. if the high setting on the Vacuum Equalizer is set to 9 in-Hg the
vacuum setting on the VacStar NEO should be set to 10 In-Hg).
5. The low vacuum setting on the Vacuum Equalizer can be set to 6, 7 or
8 in-Hg, depending on what the end user requires.
6. The delay on and delay off time settings of the Vacuum Equalizer can
be set to their lowest values for the greatest electric and water savings.
Note that if a pump turns “ON” and “OFF” three times within an
hour it will stay powered on for an additional hour before returning to
normal operation. If this happens repeatedly it may be beneficial to
increase the delay off time to prevent this from happening.
INSTALLATION INFORMATION

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Pump Setup Wiring Diagram
INSTALLATION INFORMATION
Air Techniques Approved Pumps
VS20 VS50, VS50H
VS40 VS80, VS80H
VS20NEO VS50NEO
VS40NEO VS80NEO
STS3, STS5 & STS15
Maximum Switching Voltage: 30 VAC
Maximum Switching Current: 3.5A
Note: Only install one wire per terminal block port. Pumps may
not be wired in parallel. One pump per switch only.
Vacuum Equalizer To Pump
Interconnect wire guage: #14 to #22 AWG
Interconnect wire length: 50 feet maximum
Wire Jacket O.D. 0.187” - 0.300”