Maitre D'oor: TECHNICAL INFO
Residential Sliding Door Operator
Technical Information
The �Maitre D'oor�
was introduced to fill a need for Automatic Sliding Doors in
the Residential market.
The Sleek Design
of the Maitre D'oor Operator measures only 3�D x 3-1/4� H x
54-7/8� L ( 66� L)
� Operator mounts on the
inside , above the door.
The Linear Actuator Drive
System employed has been used in industry to
generate reciprocating motion for many years. Syver-Tech has
used this existing and reliable technology to develop a
superior, quiet and long-life sliding door operator.
The linear actuator drive block has
six (6) preloaded precision ball bearings mounted at an
angle. This converts the rotary motion of the shaft into the
linear motion required by the drive block. Spring force
applied to the block is factory set to provide slippage when
permissible thrust load is exceeded.
 Superior
Benefits of this Drive:
� Sealed ball bearings require no
lubrication for life.
� Quiet and smooth motion.
� Life expectancy of bearing will
provide hundreds of thousands of door cycles.
� Overload protection when needed.
� In case of power failure, door
can be opened manually. Shaft and drive block spin freely.
Significant emphasis was given to
incorporate Current Safety Requirements as
well as many
Convenience Features :
� Automatic Reversing
� Electro-Mechanical Lock
(Failsafe), releases automatically if a power failure
occurs.
� Powered by a 24 VDC Class II
transformer (low voltage), Rated as a Low Energy Device
(ANSI/BHMA A156-19)
� FCC Compliant
� Choice of devices for hands free
door activation includes motion sensors and sensor mats.
� Other devices available include
wireless buttons, keyfobs and a keycode to lock /unlock the
door from the outside.
Universal Mounting
Versatility, to accommodate a great number of
single panel door styles on the market:
� Left or Right-hand door
openings. Just flip the operator 180� and re-attach drive
lever.
� Door opening up to 31�, use the
Maitre D'oor 3 ft model.
� Door opening up to 42�, use the
Maitre D'oor 4 ft model.
Adjustable limit switches allow for
various door widths.
For Outside Sliding Panels
:
An extra long, tilting door bracket
is available.
� The (inside) screen cannot be
used when the operator is engaged. This bracket allows easy
disengagement of the operator's drive lever, thus allowing
use of the screen when desired.
The Maitre D'oor
was designed for Easy Installation .
Installation times vary based on:
� Door adjustments prior to
installation
� Removal of trim or window
treatments if applicable
� Type of door
� Mounting option selected
� Installation of outside motion
sensor
� Approx time: 3-4 hours
Warranty: 1 year
under normal usage
Component
Specifications
Shaft
Bearings -
Double-Sealed Ball Bearing:
Load Capacity Rating:
Radial Load 500 lbs/1800 RPM
Actual: Minimal
radial load
Thrust Load Rating:
250 lbs intermittent
Actual:
Intermittent at 35-40 lbs
max. Very low RPM during initial opening and final closing
.
Drive Block
Bearings
- Double-Sealed Ball Bearing
Load Rating is based on 1500 hours
min life.
Using a very conservative safety
factor of 75% equals 1150 hours min life.
� 1150 hours = 4,140,000 seconds.
� Typical opening and closing
cycle = 6 seconds
� 4,140,000 � 6 = 690,000 cycles
� 100 cycles per day x 365 days =
36,500 cycles/year.
690,000 cycles � 36,500
cycles/yr = 18.9 yrs . (Calculated, approx.
life expectancy)
Limit Switches
Rated at 50 million cycles
Lock Solenoid -
24vdc
Rated: 500,000
Lock engagements
Actual: Holding
voltage used is 18v dc pulsing, increasing life expectancy
to approx. 1 million cycles.
Motor 36 VDC
Manufactured with
long life brushes, min brush life 1200 hours (4,320,000
seconds).
Based on 100 cycles per day,
(36,500 yr) @ 6 seconds per cycle = 720,000 cycles or
19.7 yrs.
Based on intermittent duty
application and the fact that there is minimal radial load
applied to the motor bearings
Transformer
Primary:
120v / 60 Hz
Secondary:
24v @ 75 VA 3.5 Amp
Main Control Board
No current flowing during
switching. All solid state with one (1) relay rated at 20
million cycles.
Slide Block �
Molded Polycarbonate
Contains 30% glass; 15% Teflon.
The housing is factory lubricated
along the slide block track with high quality anti-seize
lubricant. Slide is self- lubricating (Teflon). Inspect
annually under high use conditions. |
