The provided document is an installation manual for the "Synergy Straight" stairlift manufactured by Bespoke Stairlifts Limited. This manual, version V1.31 May 2019, outlines the procedures for installing, testing, commissioning, and maintaining the stairlift.
Function Description
The Synergy Straight stairlift is designed to provide assisted mobility for individuals navigating straight staircases. It consists of a rail system installed along the stairs, a drive unit that moves a chair assembly along the rail, and a chair equipped with controls and safety features. The stairlift operates on battery power, with charging points located at the top and/or bottom of the rail. Its primary function is to safely transport a user up and down a straight flight of stairs, enhancing accessibility and independence within a home or building.
Important Technical Specifications
Based on the provided pages, the following technical specifications can be inferred or are explicitly stated:
- Batteries: The system uses 12V batteries, with options for 7ah or 9ah HD. The kit box content lists "12v Batteries" (quantity 2) and "AA Batteries" (quantity 4), likely for remote controls.
- Power Supply: The stairlift operates on battery power, which is charged via a charger and bracket connected to a power supply. The manual indicates the charger can be located at either end of the rail.
- Rail System: The rail is designed for straight staircases. It is cut to a specific length based on staircase measurements ("Point X") and stair angle. The rail has a rack for the drive unit's pinion and incorporates wiring for charging and control signals.
- Rail Cutting: When cutting the rail, it's crucial to "always cut from the other end" (not the joint end) and ensure "no more than 2 teeth" are left after the last rack fixing screw at the top end.
- Rail Jointing: The rail consists of sections that are jointed together using side clamp assemblies. Matching numbered stickers on the rail ends facilitate correct jointing.
- Leg Supports: The stairlift rail is supported by leg assemblies. For a standard length installation, "all 4 / 5 must be fitted." Specific placement rules include a leg on 1 step, legs no further than 1 step above and below the rail joint, and a leg on the step below landing.
- Rail-to-Wall Gap: A minimum gap of 25mm is required between the stringer or the wall and the rail.
- Fixing Bolts: The fixing bolts for the leg assembly must be tightened to 84Nm.
- Charger Hole: A 10mm hole is drilled 50mm from the end of the rail on the bottom face for the bottom charger, and 250mm from the top edge for the top charger.
- Remote Controls: The system includes two remote controls and two holsters.
- Cables: A 5m length of 2 Core Cable is included.
- Screws: Leg Screws 6.3 x 50mm (quantity 20), M10 x 20 Caphead screw (quantity 2), Self-Tapping Screw 8x 3/4 (quantity 4).
- Washers: M10 Washer (quantity 2), M10 Serrated Washer (quantity 2).
- Connectors: Eyelet Connector (quantity 4), Barrel Connector (quantity 2), Female Spade connector (quantity 2).
- Nyloc: M4 Nyloc (quantity 2).
Usage Features
- Remote Controls: The stairlift can be operated using pre-programmed remote controls. Additional remotes can be paired by following a specific procedure involving the lift's on/off switch and a reset button.
- Directional Controls: The chair features directional controls for movement. Constant pressure on these controls is required for the lift to move, with a three-second delay before restarting if pressure is released.
- Key Switch: A key switch is present on the chair, which "should always be turned off before getting in/out of the chair" for safety.
- Swivel Function: The chair has a swivel function (manual or powered) to facilitate safe alighting at the top of the stairs. The lift automatically stops at the top and bottom of the rail. Manual override for a powered swivel should only be used in the up direction as a safety measure and only if a fault develops with power functions.
- Safety Edges: The stairlift is equipped with safety edges that stop the lift if an obstruction is encountered.
- Seatbelt: Users are instructed to always use the seatbelt.
- Audible Beep: The "TRAVEL" setting on the PCB allows for an "Audible beep during travel" (Quiet/Alarm).
- Infrared Channels: The "INFRA RED" setting allows selection of "Channel 1/2/3/4" for multiple lifts in near proximity.
- Language Options: The "LANGUAGE" setting offers "Choose 1 of 7 language options."
- Swivel Type: The "SWIVEL" setting can be adjusted for "Manual/Powered" depending on the swivel type.
- Hinge Function: If a hinge is installed, the "HINGE" setting can be "Enabled/Disabled."
- Handing: The "HAND" setting can be adjusted for "Left/Right" depending on the handing.
- Mode: The "MODE" setting "Must be in straight mode."
Maintenance Features
The manual includes troubleshooting information for common issues:
- Lift not charging: Checks include verifying the lift is parked on a charge point, checking voltage at the charge point, and confirming power is on and polarity is correct.
- Footrest safety switch activated: Checks involve looking for obstructions, ensuring covers can move freely, and checking the footrest wiring loom for continuity.
- Main chassis safety switch activated: Similar to the footrest, checks include looking for obstructions, ensuring covers can move freely, and checking the mainframe wiring loom for continuity.
- Seat swivel safety switch activated: Checks include ensuring the seat is in the home position, verifying the swivel switch is closed (located under the seat), and checking continuity on the orange wire in the mainframe loom.
- Over speed switch activated: The solution is to "Wind the lift upward using the handwinder."
- Relay is sticking on main PCB: The suggested action is to "Gently tap the relay to free the mechanism," and if that fails, "a new PCB will be required."
- Lift is drawing too much current: Checks include ensuring the rack/pinion is clear for movement and verifying the customer's weight does not exceed the limit.
- Lift has over travelled on endstop: The solution is to "Wind the lift away from the endstop and try top operate the stairlift."
The manual also provides a wiring diagram for troubleshooting electrical connections. The "Demonstration & Handover" section emphasizes explaining user safety, operation, and maintenance aspects to the user, including the user handbook and service details.
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