Berner ARC12-1036 Installation Manual
IMPORTANT INSTRUCTIONS
Saving energy and creating healthy, comfortable environments
READ AND SAVE
THESE INSTRUCTIONS
No. II-300
Date July, 2015
ARCHITECTURAL
Recessed 12 & 16
AIR CURTAIN SERIES ARC12 / ARC16
FDA
RECOMMENDED
USDA
COMPLIANCE
Installation & Maintenance Instructions
TABLE OF CONTENTS
I. UNCRATING............................................................................................................................................................................................................2
II. MOUNTING PREPARATION.................................................................................................................................................................................2
III. MOUNTING ..........................................................................................................................................................................................................3
IV. ELECTRICAL CONNECTIONS............................................................................................................................................................................. 3
V. FIELD CONNECTIONS.......................................................................................................................................................................................... 4
VI. OPERATING INSTRUCTIONS............................................................................................................................................................................. 4
VII. MAINTENANCE AND CLEANING......................................................................................................................................................................5
VIII. SERVICE ............................................................................................................................................................................................................. 6
INTELLISWITCH®
QUICK START OPERATION................................................................................................................................................................................ 8
FAQ’s (FREQUENTLY ASKED QUESTIONS)....................................................................................................................................................10
THE INTELLISWITCH® PROGRAMMING.........................................................................................................................................................12
IX. TROUBLESHOOTING.........................................................................................................................................................................................19
X. WARRANTY ........................................................................................................................................................................................................ 20
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).
www.intelli-how2.com 800-245-4455 www.berner.com
I. UNCRATING
Carefully examine the carton(s) for damage. If the carton is
damaged, immediately notify the shipping company. Do not
delay in ling claim. If the air curtain(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. Immediately verify that the electrical
rating nameplate located on the cover matches electrical power
supply available. Retain the shipping carton(s) until the air
curtain(s) are installed and properly operating.
ACCESSORIES: If the air curtain(s) were ordered with optional
electrical accessories, the accessories will be found in the carton
containing the air curtain or in a separate carton(s) accompanying the air curtain(s). Check all of the cartons/skids for accesso-
ries before discarding.
II. MOUNTING PREPARATION
INDOOR MOUNTING ONLY - Environmental/Insect/Dust Control
A. The Architectural Recessed 12/16 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 with
the ceiling, so that the airstream can pass as close to the
top of the door opening as possible. To ensure peak performance keep the air stream free of obstructions.
B. 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.
C. Before mounting the air curtain, check the supporting
structure to verify that it has sucient load-carrying capacity to support the weight of the unit(s). The mounting hardware (supplied by others) should be capable of supporting
a minimum of three (3) times the weight of the unit. See
Table 1A or 1B.
TOTAL NET WEIGHT
Model
ARC16-1036 115 119 130
ARC16-1042 122 126 139
ARC16-1048 128 132 148
ARC16-1060 148 152 175
ARC16-2060 200 208 227
ARC16-2072 207 215 237
ARC16-2084 232 240 267
ARC16-2096 245 253 286
ARC16-3096 297 309 338
ARC16-2108 262 270 307
ARC16-3108 314 326 359
ARC16-3120 314 326 363
ARC16-3132 336 348 391
ARC16-3144 349 361 409
ARC16-4144 401 417 461
Ambient
Electric
Heat
Steam/Hot
Water Heat
Table 1B
D. 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.
E. For optimum performance, the bottom of the discharge
nozzle should be located in such a manner that it is spaced
out from the wall 3/8” for every inch the unit is above the
door opening.
TOTAL NET WEIGHT
Model
ARC12-1036 100 104 11 5
ARC12-1042 107 111 124
ARC12-1048 11 3 117 133
ARC12-1060 133 137 160
ARC12-2060 170 178 197
ARC12-2072 177 185 205
ARC12-2084 202 210 237
ARC12-2096 215 223 255
ARC12-3096 252 264 292
ARC12-2108 232 240 279
ARC12-3108 269 281 316
ARC12-3120 269 281 316
ARC12-3132 291 303 346
ARC12-3144 304 316 364
ARC12-4144 341 357 401
Ambient
Electric
Heat
Steam/Hot
Water Heat
Table 1A
Figure 1
2
E. Suspend air curtain cabinet by attaching threaded rods to
the unit and support structures. Adjust unit position so
the bottom of the cabinet is ush with the underside of the
ceiling.
F. Install the front and back trim using the provided fasteners.
See Figure 3.
G. Finish o ceiling edge as required.
NOTE: Finishing materials must not overlap the bottom of
the cabinet to allow the intake screen to open freely.
H. If the blower assembly was removed, re-install it along with
nozzle surround and bottom access cover.
Figure 2
Figure 3
F. Electric heated unit(s) shall:
1. Have a minimum clearance of at least 6’ between the
bottom of the unit and the oor.
2. Be installed Indoors Only.
3. The unit is shipped without the front and back trim
installed to protect it from shipping damage. This trim
need not be installed until after the unit is hung. See
Figure 2.
IV. ELECTRICAL CONNECTIONS
All electrical wiring and connections MUST be performed by
qualied personnel in accordance with the latest edition of the
National Electrical Code ANSI/NFPA No. 70 or, in Canada, the
Canadian Electrical Code, Part 1-C.S.A. Standard C22.1 and local
codes and regulations.
A. Check the rating nameplate on the unit 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 unit. A
disconnect switch for each branch circuit is a required part
of this installation. See the voltage label on the unit for
circuiting and total electrical load.
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 unit must be replaced, it must be replaced with
copper wiring with a minimum insulation of 90°C.
C. Electric, steam and hot water heated air curtains are factory
equipped with an air curtain mounted solid state temperature sensor cable located in the j-box. Depending on
where the temperature is to be measured, the sensor may
be left on the endplate or positioned elsewhere. Do not
put any clamps on the rubber coated tip.
D. Remove the junction box cover.
E. Connect all supply and control circuit wires according to
the wiring diagram provided.
III. MOUNTING
A. The ARC12 series air curtain enclosure is equipped with
four 5/16”-18 threaded inserts on the top of the unit for
suspended mounting. See Figure 3.
For lighter lifting the blower assembly may be removed
so that the enclosure can be easily installed. See
Section VIII: SERVICE for instruction on removing the
blower assembly.
B. The electrical junction box(s) is located on the outside of
the enclosure on the left side (standard) of the unit.
C. Determine the exact mounting location of the air curtain
unit.
D. Create structural attachment points to suspend the unit
above the ceiling so that the unit is centered and parallel
with the door opening.
NOTE: For Electric heated air curtains provided with the
optional remote thermostat, mount and wire the
thermostat according to thermostat instructions and
wiring diagram.
F. Master/Slave connection, if two or more air curtains are to
be linked together for Master/Slave operation, continue,
otherwise, skip to Step G.
NOTE: The air curtain must have been ordered from the
factory with this option.
NOTE: One Intelliswitch® serial cable assembly (part #
505SC***INT485-A) is required for every air curtain that is
to
be used as a Master/Slave. “***” denotes length of cable in
feet “008”= 8 ft. long.
3
For Master/Slave operation, a serial cable connection must be
made between the Intelliswitch® control boards of each air
curtain to be linked.
1. Disconnect power to all the air curtains
2. Find the (RS485) phone jack couplers protruding through
the hole in the endplate next to the j-box.
3. The serial cable ordered for each air curtain will be coiled
up and attached to the left endplate.
NOTE: There will be one less serial cable than the number of
air curtains ordered. E.g. Two air curtains together will need
only
one cable; three air curtains together will need two cables,
etc. Any extra cables can be kept as spares.
4. Plug the (RS485) male phone jack on the end of the serial
cable into the empty coupler on the next air curtain.
5. Continue process for all air curtains that are to be connected serially.
6. Serial cable connections are capable of two way communication. It does not matter to which coupler the cables are
connected.
7. The rst and last air curtain in the group will each have an
empty coupler after all connections are made. If there are
only two air curtains connected, each will have an empty
cable coupler.
V. FIELD CONNECTIONS
A. ELECTRICALLY HEATED MODELS
The heater circuit may be controlled by a remote thermo-
stat or manually through the Intelliswitch® located on the
discharge side of the air curtain. Overheating protection is
provided by auto reset thermal cutouts built into the heater
coil assembly (see the wiring diagram).
B. STEAM AND HOT WATER HEATED MODELS
Piping should be done in accordance with local codes,
regulations and standard practices. Connect the building
system supply and return to the ¾” MPT nipples on the
heating coil. See Figure 4.
VI. OPERATING INSTRUCTIONS
A. GENERAL OPERATION
Air curtain operation may be divided into four areas:
control package, fan activation, fan speed selection,
and heat activation. The air curtain must be properly
installed before it is used.
1. Control packages control the unit’s sequence of operation.
NOTE: If a longer cable is required than was supplied, it can
be ordered from the factory or made by using standard 4
wire at telephone cable, phone jack connectors and the
proper crimping tool.
G. Remote Mounted Display Faceplate – If operation of the
Intelliswitch® is to be through a Factory Ordered Remote
Mounted Display Faceplate, continue, otherwise, skip to
step H.
NOTE: Maximum mounting distance between the Display
Faceplate and the air curtain is 20’.
1. When the remote faceplate option is ordered from the
factory, the air curtain comes equipped with the blank
faceplate already installed and the 20’ ribbon cable attached. The Display Faceplate is shipped loose, ready
for eld installation.
2. Locate the male end of the conductor ribbon cable
and run it to the remote display location. The cable
is minimum CL2 rated and should not need to be in
conduit.
3. Connect the female end of the ribbon cable to the
14-pin socket on the back of the display board with
the cable approaching from the top and the red ribbon
indicator to the right (when facing the front of the
display board).
4. Mount Display Faceplate to the wall.
H. For Electric, Steam and Hot Water air curtains proceed to
Section V - Field Connections otherwise proceed to
Section VI - Airow Adjustments
Figure 4
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
switch. The door switch may be line voltage or low
voltage (24V).
b. Deluxe Control Package – The unit is activated by a door
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 the door switch or by the
thermostat to provide supplemental heating.
2. Unheated units will have the fans activated by a door switch
or sensor. The unit speed can be selected from the
Intelliswitch display.
3. Heated units will have fans activated by a door switch or
sensor, but may also be activated by the thermostat in
Comfort Plus Mode. The unit speed can be selected from the
Intelliswitch display.
4. Heat activation is controlled by either a unit or remote
mounted thermostat, and a unit or remote mounted switch.
4
Figure 5
A. Disconnect and lockout power to the unit. If necessary
remove the blower assembly. See Section VIII: Service for
instructions on how to remove blower module.
B. Remove the bottom access cover by removing (2) Phillips
head machine screws located at the cover’s corners.
See Figure 6.
C. 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 ad-
ditional lubrication.
D. Pull the lter out from underneath the struts of the bottom
access cover. It is easiest to work from the middle, pulling
one side out and then the other. Spray the lter with warm,
soapy water, rinse, and pad dry.
E. Replace Filter.
F. Reinstall the bottom access cover.
G. Switch the power on after cleaning.
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 5. 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.
VII. 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.
Figure 6
CAUTION: STAND CLEAR of the unit or wear safety goggles
as loose debris may be present and may exit the nozzle.
VIII. SERVICE
CAUTION: ELECTRIC SHOCK HAZARD Disconnect power
whenever servicing unit. More than one disconnect may be
required to de-energize unit.
Any service performed on the Architetcural Recessed 12/16 air
curtain MUST be done by qualied personnel.
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:
Figure 7
5
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. To remove the blower module and clean or replace the fans
and motor:
1. Disconnect and lockout power to the unit.
2. Remove the bottom access cover by removing (4) Phillips head machine screws located at the cover’s corners.
See Figure 6.
3. If desired, the nozzle surround may be removed to
provide more working room. To remove the nozzle surround, remove the (4) Phillips head machine screws from
the corners. The Intelliswitch® ribbon cable must also be
Figure 8
disconnected from the back of the display circuit board
before the nozzle surround can be set aside.
4. Disconnect motor power wires/harness from motor.
5. If the unit has electric heat, the heaters need to be
disconnected from supply wiring. Each fan housing will
have a heating element on both of its sides, spanning
the inlet venturi. Each heating element will have (2) ¼”
quick disconnects for power supply wiring. In addition,
the heating elements located on the inside of the module will have (2) ¼” quick disconnects for the auto reset
thermal cutouts. Label and separate all of those connections. See Figure 7.
6. Using a 5/16” hex driver, loosen and remove the (4) self
drilling screws that hold the blower plate to the frame of
the unit. Remove the two screws at the top of the product last, as after they are removed, the module will be
free to drop out of the cabinet. See Figure 8 for location
of all screws.
7. Wearing protective gloves, hold the module by the motor, and rotate the module top forward and drop it down
through the bottom of the unit. See Figure 9.
8. To remove the fans and/or motor, loosen the set screws
in the fan wheel hubs by using a 5/32” Allen wrench
that is at least 6” long. The set screw can be accessed up
through the fan’s discharge.
9. Next, remove the two blower housings by removing the
(8) screws that attach the fan housings to the blower
plate. When the fan housings are free, slide them and
their fan wheels o to each side.
10. Remove the motor clips from the motor mounts, disconnect the motor ground wire if necessary, and lift the
motor up and out of its cradle.
11. Reinstall in reverse order of removal.
Figure 9
6
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