ThyssenKrupp Access Citia BOS, Installation And Service Manual

 18 

VI. SERVICE INFORMATION

A. GENERAL 

SPECIFICATIONS

Rated Load:

  375 lbs. (170 kg)

Speed:

  18-25 fpm (dependant on angle of install 

and load)

Travel:

  32’ max. (track length)

Power Supply:

  Dedicated* 115VAC, 60 Hz, 3-wire 

grounded outlet

Incline Limits: 

 25° to 45°

ETL Listed when properly installed

B. STANDARD 

EQUIPMENT

Drive System:

  Rack and pinion

Motor: 

 .5 hp, 24 VDC

Motor Controller: 

 SoftStart/SoftStop

Brake: 

 Self locking worm gear

Seat: 

• Standard - 18” wide fi xed seat with two fi xed 

arms OR  

• Select - 18” wide fi xed, upholstered seat with 

OR

• Excel - 19” wide folding seat with two fixed 

arms

• Seat belt
• 70° locking swivel at upper and lower landings

Controls: 

 Low voltage up-down hand-held control on 

* ASME A18.1a / NEC Requirement

Notes:

•

  The BOS model stair lifts are battery powered.  

Two 

12V batteries are wired in series to provide 24V to 
the control system.  The batteries are charged by 
a 33VDC power supply plugged into the 115 VAC 
outlet.  The batteries are charged only when the 
lift is parked at the upper or lower landing.

•

  The call/send controls (transmitters) use infrared 

signals.  

There are two infrared sensors located on 

the chassis access cover.  There is a combination 
of 4 different frequencies the transmitters can be 
set to (both transmitters must be set to the same 
frequency).

•

  There is a half second delay after a control button 

is pressed before the lift starts to move.  After the 
lift stops, the up/down controls are disabled for 3 
seconds.

upper and lower 

stops

upper and lower fi nal limit

charge spring

unit and two wireless remote controls

Safety Devices:

Footrest obstruction sensor
Swivel seat cut-off switch
Final limits

Warranty:

 Five years on drive train (motor and gear)

Two years on all component parts