Berner Architectural Recessed 12 handleiding

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Berner

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Handleiding

-5-

A. The Architectural Recessed 12/16 series air curtain enclo-

sure is equipped with four 13mm holes on the top of the

unit for suspended mounting. See Figure 4.

For lighter lifting the blower assembly may be removed

so that the enclosure can be easily installed.

See Section VII: 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.

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 4.

G. Finish o ceiling edge as required.

NOTE: Finishing materials must not overlap the bot-

tom of the cabinet to allow the intake screen to operate

freely.

H. If the blower assembly was removed, re-install it along

with nozzle surround and bottom access cover.

I. Proceed to Section IV – ELECTRICAL CONNECTIONS

All electrical wiring and connections MUST be performed by

qualied 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.

MAKE SURE THE CORRECT VOLTAGE AS MARKED

ON THE UNIT IS USED.

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 sup-

plied 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 fac-

tory 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 end plate 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.

IV. ELECTRICAL CONNECTIONS

Figure 3

Figure 4

III. MOUNTING INSTRUCTIONS (General)

Installation location

of front trim

Inlet screen

Surround Nozzle

Installation

location

of back trim

Adjustable discharge vanes

Intelliswitch

display

Bottom

access

cover

Holes for suspension

J-box

Installed

length trim

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