Saving energy and creating healthy, comfortable environments
READ AND SAVE
THESE INSTRUCTIONS
No. II-123
Date July, 2015
SANITATION
CERTIFIED
High Performance 7
AIR CURTAIN SERIES SHC07
for outdoor use
SHC07
FDA
RECOMMENDED
USDA
COMPLIANCE
ANSI/NSF 37
Air Curtain Fans
for Customer Entry
12CS
SHC07SHC07
COMMERCIAL
High Performance 10
AIR CURTAIN SERIES CHC10
Installation & Maintenance Instructions
TABLE OF CONTENTS
I. UNCRATING....................................................................................................................................................................................................... 2
II. MOUNTING INSTRUCTIONS .......................................................................................................................................................................... 2
III. WALL MOUNTING ......................................................................................................................................................................................... 3
IV. SUSPENDED MOUNTING.............................................................................................................................................................................. 3
V. ELECTRICAL CONNECTIONS ........................................................................................................................................................................ 3
VI. MECHANICAL CONNECTIONS .................................................................................................................................................................... 4
VII. OPERATING INSTRUCTIONS ...................................................................................................................................................................... 4
VIII. MAINTENANCE AND CLEANING .............................................................................................................................................................. 5
IX. SERVICE .......................................................................................................................................................................................................... 5
XI. WARRANTY ..................................................................................................................................................................................................... 8
NSF certication requires maximum mounting height of 7 feet for models SHC07/CHC10 36” & 42”
EPH certication requires maximum mounting height of 7 feet for all SHC07/CHC10 models
WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO PERSONS, OBSERVE THE FOLLOWING:
A. Read all instructions before installing or using this air curtain.
B. Use this unit only in the manner intended by the manufacturer and described in this manual. Any other use not recommended by the
manufacturer may cause re, electric shock, or injury to persons. If you have any questions, contact the manufacturer.
C. Before servicing or cleaning unit, switch power o at service panel and lock the service disconnecting means to prevent power from being
switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag,
to the service panel.
D. Installation work and electrical wiring must be done by qualied person(s) in accordance with all applicable national and local codes having
jurisdiction, including re-rated construction. See page 3, ELECTRICAL CONNECTIONS (NEC Code ANSI/NFPA No. 70).
E. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
F. To reduce the risk of re, do not store or use gasoline or other ammable vapors and liquids in the vicinity of the air curtain.
G. This air curtain is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Keep combustible materials, such as furniture, pillows,
bedding, papers, clothes, etc. and curtains at least 1 inch from the top, back, front, sides and at least 6 feet from the discharge of the air curtain.
H. Extreme caution is necessary when any air curtain is used by or near children or invalids, and whenever the heater is left operating unattended.
I. Do not operate any air curtain after it malfunctions. Disconnect power at the service panel and have the air curtain inspected by a reputable
electrician before reusing.
J. To disconnect the air curtain, turn controls to "o", and turn o power to the air curtain circuit at main disconnect panel.
K. Do not insert or allow foreign objects to enter any ventilation or discharge opening as this may cause an electric shock or re, or damage
the air curtain.
L. To prevent a possible re, do not block the air intake or discharge of the air curtain in any manner.
M. The air curtain has hot and arcing or sparking parts inside. Do not use it in areas where gasoline, paint, or ammable vapors or liquids are
used or stored.
N. This heater may include an audible or visual alarm to warn that parts of the heater are getting excessively hot. If the alarm sounds (or illuminates),
immediately turn the heater o and inspect for any objects on or adjacent to the heater that may have blocked the airow or otherwise caused
high temperatures to have occurred. DO NOT OPERATE THE HEATER WITH THE ALARM SOUNDING (OR ILLUMINATING).
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I. UNCRATING
Carefully examine the carton(s) for damage before opening. If the carton
is damaged, immediately notify shipping company. If the unit(s) were
shipped on wooden skids, remove protective wood and banding straps
securing the carton(s) to the skid. Open the carton(s) and remove all
protective packaging. Remove the plastic cover housing by lifting
vertically. Remove and discard four (4) nuts and washers holding the
motor/blower section to the bottom of the carton. Remove motor/
blower section from the carton.
CAUTION: ONLY LIFT THE UNIT BY GRASPING INLET RINGS ON THE
BLOWER HOUSING WITHOUT TOUCHING BLOWER WHEELS.
Immediately verify that the electrical rating nameplate located on the
cover matches electrical power supply available. Retain the shipping
carton(s) until the unit(s) are installed and properly operating.
ACCESSORIES: If the unit(s) were ordered with optional electrical
accessories (door switch, control panel, etc.), the accessories may be
found in the carton containing the unit or in a separate carton(s)
accompanying the unit(s). Check all of the cartons/skids for accessories
before discarding.
II. MOUNTING INSTRUCTIONS (General)
INDOOR MOUNTING - Environmental/Insect Dust Control
OUTDOOR MOUNTING (Unheated Only) - Insect/Dust Control
The SHC07/CHC10 Air Curtain is designed to be an eective barrier
against cold drafts in the winter and hot air in the summer. To achieve
optimum protection, the unit should be mounted on the inside of the
building, ush to the wall and as close to the top of the door opening as
possible. To ensure peak performance keep air stream free of obstructions.
The Air curtain will not perform properly if negative air pressure
exists in the building. Under these conditions, a means for makeup
air to the building must be provided so that the air pressure on both
sides of the opening is in balance.
Before mounting the unit, check the supporting structure to verify that it
has sucient load-carrying capacity to support the weight of the unit(s).
Net Weight
MODEL
CHC10-10365052SHC07-103650
CHC10-10425255SHC07-104252
CHC10-10485356SHC07-104853
CHC10-10605463SHC07-206070
CHC10-20607096SHC07-207284
CHC10-207284104SHC07-2084104
CHC10-2084
CHC10-2096
CHC10-3096
CHC10-2108
CHC10-3108
CHC10-2120
CHC10-3120
TABLE 1 - SHC07 Unit Weight
CHC08
Ambient
104110SHC07-2096106
106112SHC07-3108150
120148SHC07-3120152
107119
150156
108126
152
CHC08
Electric
159
MODEL
TABLE 2 CHC10 Unit Weight
Net Weight
SHC07
Ambient
FIGURE 1 - Air Stream
The mounting hardware (supplied by others) should be capable of
supporting a minimum of three (3) times the weight of the unit.
See Table 1.
NOTE: The Air curtain is weatherproof, therefore no special covering is
required for outdoor mounting.
IMPORTANT: A minimum of 4” is recommended above the top of the
Air curtain for the installation and removal of the cover housing.
A. When determining the mounting location for the unit(s), make sure
that nothing interferes with the curtain of air developed when the
discharge vanes are directed from 0° to 20° toward the door opening.
If the air stream strikes any obstruction (the top edge of the doorway,
a door opening device, etc.), the eectiveness of the unit will be
greatly reduced. See Figure 1.
B. For optimum performance, the bottom of the unit (discharge nozzle)
should be no more than 1” above the top of the door opening with
the unit mounted ush to the wall. If the unit must be mounted
higher, it must be spaced out from the wall ³/₈” for every inch the
unit is above the door opening. For optimum protection, any void
between the Air curtain and the wall should be sealed along the full
length of the unit.
See Figure 2.
FIGURE 2
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C. Electric heated units shall:
1. Have a minimum clearance of at least 4” between the sides and
top of the unit and any combustible material.
2. Have a minimum clearance of at least 6’ between the bottom of
the unit and the oor.
3. Be installed indoors only.
D. Proceed to either Section III - WALL MOUNTING, or Section IV
SUSPENDED MOUNTING
III. WALL MOUNTING
A. Determine the location on the wall above the opening where
the air curtain will be mounted. This location should center
the unit over the opening and provide suitable mounting
support. It is recommended to use at least four locations that
correspond to the outer corners of the wall mounting plate.
See FIGURE 3.
Recommended Mounting
Plate Holes
Mounting Plate
Lower Lip
Locking Screws
FIGURE 4 - Attaching Unit to Mounting Plate
B. Four (4) factory installed #10-24 threaded inserts are located
on the top of the unit for top suspension mounting.
Remove screws from inserts.
See FIGURE 5.
Doorway Opening
1" max.
Doorway
Opening
FIGURE 3 - Positioning of Mounting Plate
B. Prepare the wall as necessary for the wall mounting
plate anchors (by others).
C. Drill holes in the wall mounting plate to correspond to the
locations on the wall.
D. Anchor the wall mounting plate over the door opening with
the mounting tabs pointing upwards.
E. Raise the unit over the door (air nozzle facing down) and onto
the mounting plate. Tilt the unit upward, matching the holes
in the frame with the tabs on the mounting plate.
See FIGURE 4.
F. Lower the unit into place allowing it to rest on the mounting
plate. The unit ange should rest above the mounting plate
ange.
G. After the unit is securely seated to the mounting plate, install
the locking screws along the bottom ange. See FIGURE 4.
H. Proceed to Section V-ELECTRICAL CONNECTIONS
IV. SUSPENDED MOUNTING
(Ceiling Suspension)
A. When the unit is top mounted, the wall mounting plate is
designed to store on the back of unit for future use.
Suspension Rods
10-24 Threaded Insert
Side View
FIGURE 5 - Suspended Mounting
C. Determine the exact mounting location of the air curtain.
D. The top of the unit is provided with an electrical knockout
for power connection. Remove the wiring tray compartment
cover. Remove the knockout and attach necessary electrical
hardware. Save the wiring diagram found inside of wiring
tray.
E. Attach #10-24 threaded rods, or other suitable hardware to
the top mounted threaded inserts.
F. Proceed to Section V-ELECTRICAL CONNECTIONS
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V. ELECTRICAL CONNECTIONS
All electrical wiring and connections MUST be performed by
qualied personnel in accordance with the National Electrical Code ANSI/NFPA No. 70 (latest edition) or, in Canada, the
Canadian Electrical Code, Part 1-C.S.A. Standard C22.1 and local
codes and regulations.
A. Check the electrical rating nameplate on the top of the
air curtain for supply voltage and current requirements.
A separate line voltage supply with a suitable branch circuit protection device should be run directly from the
main electrical panel to the air curtain. A disconnect switch
for each branch circuit is a required part of this installation.
B. All eld wiring must be copper with a minimum insulation
of 60° C within approved conduit. If any of the wire supplied with the air curtain must be replaced, it must be
replaced with copper wiring with a minimum insulation of
90° C.
C. Remove the wiring tray cover; on air curtains that are
comprised of modules, remove the wiring tray cover that is
located closest to the electrical rating nameplate (if it has
not already been done). See FIGURE 6.
D. The top of the air curtain has two knockouts on each side
of the air curtain, allowing for a left hand or right hand
power connection. Remove the required knockout if it has
not already been done and connect the power supply to
the air curtain. Connect all supply and control circuit wires
according to the wiring diagram provided.
NOTE: For Electrically Heated air curtain(s) provided with the optional remote thermostat: mount and wire
the thermostat according to instructions and wiring
diagram.
VI. MECHANICAL CONNECTIONS
A. ELECTRICALLY HEATED MODELSThe heater circuit may be controlled by a remote thermostat, or
manually through a remote mounted three position - fan only/o/
fan with heat switch. Overheating protection is provided by auto
reset thermal cutouts built into the blower assembly (see wiring
diagram). Proceed to Section VII - OPERATING INSTRUCTIONS.
VII. OPERATING INSTRUCTIONS
A. GENERAL OPERATION
Air curtain operation may be divided into four areas:
control package, fan activation, fan speed selection, and heat
activation. Depending on the type of controls ordered one or
more of the following may be applicable. The air curtain must
be properly installed before it is used.
1. Control packages control the unit’s sequence of operation.
Unit modes/control packages are built into the unit and may
not be changed in the eld. Refer to your wiring
diagram for specics about activation connections and
sequence of operation.
a. Basic Control Package – The unit is activated by a door or
selector switch. Either switch may be line voltage or
low voltage (24V).
b. Deluxe Control Package – The unit is activated by a door or selector switch, but has a factory installed time
delay allowing the unit to keep running for a period of
time after the door closes.
c. Comfort Plus Control Package – Available only on heated units, the unit is activated by a door or selector
switch AND a thermostat to provide supplemental
heating. NOTE: Not available with 575V motors.
2. Unheated units will have the fans activated by a door or
selector switch or sensor. The unit may be single speed and
require no fan speed selector (On/O ), or may have
multiple fan speeds which require either a unit or remote
mounted switch (O, High, Med, Low).
3. Heated units will have fans activated by a door or selector
switch or sensor, but may also be activated by the
thermostat in Comfort Plus Mode. The unit may be single
speed and controlled by either a unit or remote mounted
switch (Fan, O, Heat), or may have multiple fan speeds
which can be set by either a unit or remote mounted switch
(Low, Med, High, O, Low heat, Med Heat, High Heat).
4. Heat activation is controlled by either a unit or remote
mounted thermostat, and a unit or remote mounted switch.
FIGURE 6 - Removing Cover
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FIGURE 7 - Air Flow Adjustment
B. AIR STREAM ADJUSTMENT
1. With the air curtain operating and the door in its full open
position, check to see that nothing is obstructing the airow
at the discharge nozzle vanes.
2. Find the air stream split location. Hold a handkerchief by
its corners, approximately 12” above the oor. Gently move
the handkerchief back and forth in the doorway. Make sure
the air is being directed to both the inside and the outside.
See Figure 7. The split location is indicated where the
handkerchief is vertical with minimal or no uttering.
3. The split location should be approximately 3” outside the
doorway. If necessary adjust the discharge nozzle vanes by
de-energizing the unit, loosening the nozzle vane locking
screws and adjusting vanes.
VIII. MAINTENANCE AND CLEANING
CAUTION: ELECTRIC SHOCK HAZARD
Disconnect power whenever servicing unit. More than one disconnect may be required to de-energize unit.
Keep your Air curtain operating at peak eciency by cleaning the
blower wheels, motor(s) and intake grille. Buildup of dust on the blower
wheels can cause vibration, noise and excessive wear on the motor bearings. The frequency of cleaning will depend on the environment where
the unit is operating.
Dirty, dusty or greasy environments could require a cleaning schedule of
once every two months. Otherwise, the unit(s) should be scheduled for
cleaning a minimum of once every (6) months. To access the interior of
the unit:
A. Disconnect and lockout power to the unit. Remove unit cover hous-
ing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove. If the unit has a lter,
it should be removed and cleaned at this time. The lter is located
in the cover housing and held in place by wing nuts and clips. See
Figure 8.
B. Vacuum and scrape (if necessary) to remove the buildup of dirt and
debris from the interior of the Air curtain. The motor(s) are permanently lubricated and require no additional lubrication. Reinstall the
cover housing.
C. Switch the power on after cleaning.
CAUTION: STAND CLEAR OF THE UNIT OR WEAR SAFETY GOGGLES
AS LOOSE DEBRIS MAY BE PRESENT AND MAY EXIT THE NOZZLE.
IX. SERVICE
CAUTION: ELECTRIC SHOCK HAZARD Disconnect power whenever
servicing unit. More than one disconnect may be required to deenergize unit.
Any service performed on the SHC07/CHC10 Series Air curtain MUST be
done by qualied personnel.
Berner Air curtains require very little servicing. All parts are easily accessible for periodic inspection and maintenance. Units should be cleaned
at least twice a year. Your particular application (the amount of dirt and
dust in the air) and location of the unit(s) will determine how often your
unit(s) will need to be cleaned and serviced. All motors have permanently lubricated, sealed, sleeve bearings and require no maintenance.
A. Fan Wheel Removal - Ambient and Electric Heated
1. Disconnect and lockout power to the unit. Remove unit cover housing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove.
2. If unit is equipped with inlet rings and/or tri-arm bearings, remove
outside ring and/or bearing using a blade screw driver or ¼” nut
driver. If unit does not have inlet rings proceed to next step.
3. Loosen (do not remove) /” Allen head set screw from hub of fan
wheel. Note: a T-handle Allen wrench may be inserted through hole
in fan housing and fan blade with semi-circle notch.
4. Carefully slide fan wheel out of fan housing.
5. Reinstall fan wheel and align set screw with at on motor shaft.
6. Slowly tighten set screw while gently rocking fan wheel back and
forth to settle set screw perpendicular to motor shaft at.
7. Reinstall inlet ring and/or bearing if necessary.
8. Reinstall unit cover housing and switch on power.
FIGURE 8 - Filter Replacement
B. Motor Removal - Ambient and Electric Heated
1. Disconnect and lockout power to the unit. Remove unit cover housing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove. For electric heated
units, mark connections and disconnect four spade wire terminals
from electric heater(s).
2. Unplug wiring harness from motor.
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3. Loosen (do not remove) /” Allen head set screw from hub of each
fan wheel attached to motor. Note: a T-handle Allen wrench may
be inserted through hole in fan housing and fan blade with semicircle notch. If unit is equipped with an extended shaft and coupling
for a three fan, one motor construction, this fan assembly must be
disconnected from motor shaft. Loosen /” set screw on third fan
wheel hub. Loosen set screw on motor shaft side of coupling (silver
coupling - /” Allen wrench, black coupling - /” Allen wrench).
Slide coupling and shaft o motor shaft by gently pushing it through
third fan hub.
4. Remove four phillips head screws from each fan housing that has a fan
attached to motor.
5. Remove each fan and housing assembly from motor shaft by sliding
away from motor. After fan wheel is o motor shaft, remove assembly
by rotating it away from the blower assembly.
6. While supporting motor, loosen and remove two clips that hold motor
with a straight blade screw driver or /” nut driver.
7. Remove motor.
8. Install motor in reverse order of removal.
C. Fan Wheel and Housing Removal Ambient and Electric Heated
1. Disconnect and lockout power to the unit. Remove unit cover housing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove. For electric heated
units, mark connections and disconnect four spade wire terminals from
electric heaters.
2. Loosen (do not remove) /” Allen head set screw from hub of fan
wheel. Note: a T-handle Allen wrench may be inserted through hole in
fan housing and fan blade with semi-circle notch.
3. Remove four phillips head screws from
fan housing.
4. Remove fan and housing from motor shaft by sliding assembly away
from motor. After fan wheel is o of motor shaft, remove assembly by
rotating it away from blower assembly.
5. Reinstall in reverse order of removal.
D. Filter Replacement
1. Disconnect and lockout power to the unit. Remove unit cover housing by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove.
2. Filter is located in cover housing. Remove wing nuts and clips that hold
lter. See Figure 8.
3. Remove and replace lter. Note: clean aluminum lters with water and
a mild detergent, rinse thoroughly.
4. Reinstall in reverse order of removal.
Note: do not force or over tighten wing nuts as they will thread through
the outside of cover housing.
E. Electric Heater Removal - Electric Heated
1. Disconnect and lockout power to the unit. Remove unit cover housing
by removing screws from the top and bottom of unit. Slide cover
housing away from blower assembly to remove. Mark connections
and disconnect four spade wire terminals from electric heater(s).
2. Loosen (do not remove) /” Allen head set screw from hub of fan
wheel. Note: a T-handle Allen wrench may be inserted through hole in
fan housing and fan blade with semi-circle notch.
3. Remove four phillips head screws from fan housing.
4. Remove fan and housing from motor shaft by sliding assembly away
from motor. After fan wheel is o of motor shaft, remove assembly by
rotating it away from blower assembly.
5. Remove electric heater element from fan housing by removing three
screws with ¼“ nut driver.
6. Reinstall in reverse order of removal.
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X. TROUBLESHOOTING
SYMPTOMS CAUSE REMEDY
NO AIR • Electrical Power supply line open (no power) • Check power source, check method of control in
NOT ENOUGH • Thermostat in wrong location - thermostat too • Move thermostat away from air stream
HEAT close to discharge
• Improper voltage • Supply proper voltage
• Thermostat not set properly • Change temperature setting
TOO MUCH • Thermostat in wrong location • Move thermostat closer to air stream
HEAT • Thermostat not set properly • Change temperature setting
• Insucient air over coil • Remove restriction on intake
• Improper voltage • Supply proper voltage
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XI. WARRANTY
Berner International (“The Company”) warrants all new equipment to be free of defects in workmanship and material for a period
of ve years (5 years) on unheated models and two years (2 years) on heated models from the original date of shipment, provided
the equipment has been properly cared for, installed and operated in accordance with the limits specied on the nameplate and The
Company’s instructions.
The Company will correct by repair or replacement, at its option and expense, any proven defects in said apparatus, subject to the above
conditions, provided that immediate written notice of such defects is given to The Company. The warranty does not include any labor
incurred for the removal or installation of defective part(s). The Company reserves the right to inspect, or have inspected by a qualied
representative, any apparatus at the place of installation before authorizing repair or replacement. Repair or replacement will be made
F.O.B. factory with any applicable transportation charges to be borne by the customer. Merchandise not of The Company’s manufacture
supplied in piece, or in component assemblies, is not covered by the above warranty, but The Company will give the customer the benet
of any adjustment as made with the Manufacturer.
This warranty is void if the apparatus has been tampered with in any way or shows evidence of misuse.
The Company will not assume any expense or liability for repairs made outside its factory without proper written consent from its service
manager, nor for any transportation charges on apparatus returned to the factory without written authorization by The Company.
Nothing in the above warranty provisions, however, shall impose any liability or obligation of any type, nature or description upon Berner
International if Berner has not received payment in full for the apparatus in question.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HERE OF INCLUDING
THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF DAMAGES
Notwithstanding anything to the contrary above, customer’s exclusive remedy for any and all losses or damages resulting
from the sale of The Company’s equipment under this agreement, including but not limited to, any allegations of breach of
warranty, breach of contract, negligence or strict liability, shall be limited, at The Company’s option, to either the return of
the purchase price or the replacement of the particular equipment for which a claim is made and proved. In no event shall The
Company be liable for any special, consequential, incidental or indirect losses or damages from the sale of The Company’s
equipment under this agreement.