Berner Architectural Contour 10 handleiding

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Berner

16 pagina's

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Handleiding

-14-

• Air stream too weak

• Air stream hits obstruction

• Negative pressure

• Shaft rotating inside fan

• One motor not operating

• Nozzle not angled out far enough

• Unit too powerful

• Air movement too cold

• Pushing air outside building

SEE AIR IS NOT HITTING FLOOR SYMPTOMS

• Switch turned to “ON” position

• Thermostat not set properly

• Coils burned out due to lack of air

• Automatic reset thermal cutout failed in open

position

• Manual reset thermal cutout tripped

(if supplied)

• Adjust nozzle to proper position, adjust motor

speed; see installation instructions

• Remove obstruction or reposition air curtain

(move out 3/8” for every 1” up from the door)

• Relieve negative pressure by providing makeup air

• Tighten set screws

• Repair or replace motor

• Adjust nozzle angle to outside

• Adjust motor speed

• Add auxiliary heat to overcome wind chill factor

• Adjust discharge angle back into building, adjust

motor speed

• Replace switch or check wiring

• Change thermostat setting

• Correctairowproblem;replacecoils

• Replace automatic thermal cutout

• Reset manual thermal cutout

AIR IS NOT HITTING

FLOOR

UNEVEN AIR

EXCESSIVE AIR

MOVEMENT AT

DOORWAY

ELECTRICALLY HEATED MODELS

NO HEAT

MINIMAL HEAT

EXCESSIVE HEAT

HOT WATER HEATED UNITS

EXCESSIVE HEAT

MINIMAL HEAT

NO AIR

• Power supply line open (no power)

• Fuse blown/circuit breaker tripped

• Motor overload tripped

• Failed switch

• Check power source, check service disconnect,

check method of control in ON position

• Replace fuse(s)/reset breaker

• Internally protected motor - should reset

automatically after cool-down, if not, replace motor.

• Replace switch

MOTOR RUNNING/FANS ARE NOT ROTATING

MINIMUM AIR

ELECTRICAL CONTROLS NOT FUNCTIONING WHEN DOOR IS OPEN

SYMPTOMS

REMEDY

CAUSE

• Brokenordamagedexiblehub

• Shaft rotating inside fan

• Selector switch is in off position

• Door limit switch not operating

• Air directional discharge vanes mis-adjusted

• Inadequate intake clearance

• Blower motor operates below speed

• Fan rubbing against housing

• Fan wheels clogged with dirt

• Fan in backwards

• Replace fan sleeve/reengage coupling

• Tighten set screws/tighten fan on shaft

• Turn switch to “ON” position

• Repair or replace limit switch

• Adjust vanes to proper position, see instructions

• Move air curtain or remove obstruction

Provide adequate space for air curtain

• Improper voltage

• Free fan from housing

• Clean and vacuum fan wheels

• Check fans for blade curve toward discharge

• Thermostat in wrong location - thermostat

too close to discharge

• Improper voltage

• Thermostat not set properly

• Low entering air temperature

• Incorrect speed range

• Thermostat in wrong location

• Thermostat not set properly

• Insufcientairovercoil

• Improper voltage

• Move thermostat away from air stream

• Supply proper voltage

• Change temperature setting

• Based on unit temperature rise, reduce speed

•

Check Factory Menu speed range matches diagram

• Move the thermostat closer to air stream

• Change temperature setting

• Remove restriction on intake

• Supply proper voltage

• Reducehotwaterow

• Clean intake and coils

• Increasewaterow

X. TROUBLESHOOTING

• Too high hot water pressure

•

Inadequateairow,nspluggedup,dirtycoils

• Water temperature too low

• Intake air below design temperature

Bekijk gratis de handleiding van Berner Architectural Contour 10, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.