COMHOMA GT205-2222 Ergonomic Office Chair User Manual

1. Important Safety Information

Please read all instructions carefully before assembly and use. Retain this manual for future reference.

• Weight Limit: Do not exceed the maximum weight capacity of 300 lbs (136 kg).
• Assembly: Ensure the chair is properly assembled according to the instructions to avoid any hazards. All screws and bolts must be securely tightened.
• Stability: Do not stand on the chair. Do not use the chair as a step stool.
• Movement: Avoid sudden movements or leaning excessively, especially when the chair is reclined.
• Children: Keep children away from moving parts during assembly and adjustment.
• Inspection: Periodically check all fasteners to ensure they remain tight. Replace any damaged parts immediately.

2. Product Overview

The COMHOMA GT205-2222 Ergonomic Office Chair is designed for comfort and support during extended periods of sitting. It features a high back, lumbar support, and an adjustable footrest.

Key Features:

• Ergonomic Full-Body Design: 3D wrapping lumbar support with dual-layered high-density foam and high-loft fiber for neck, shoulders, and back.
• Pocket Spring Lumbar Support: Spacious seat with no restrictive side wings, enhanced comfort and breathability.
• Adjustable Footrest: Allows switching between work and relaxation modes.
• Durable Construction: BIFMA-certified five-star base (supports up to 300 lbs), SGS-3 gas lift (120,000+ cycles), metal armrest frame.
• Versatile Adjustments: 10cm height adjustment (5'1" to 6'2" users), 90° to 135° backrest recline, 360° swivel, smooth-rolling casters.
• FSC-Certified: Chair cushion inner support made of FSC-Certified wood.

Product Dimensions:

Figure 1: Product dimensions. Overall dimensions: 19.7"D x 22"W x 45.1"H. Seat height: 19.7 inches. Backrest height: 29.5 inches.

3. Assembly Instructions

The COMHOMA GT205-2222 chair is designed for straightforward assembly, typically taking 15-30 minutes. All necessary accessories and tools are included.

Step-by-Step Guide:

1. Unpack Components: Carefully remove all parts from the packaging and lay them out on a clean, soft surface to prevent scratches. Verify all components are present against the parts list (not provided in input, but implied).

   Figure 2: All components for assembly.

2. Assemble the Base: Attach the five legs to the central hub of the chair base using the provided screws and Allen wrench. Ensure all connections are secure.

   Figure 3: Assembling the chair base.

3. Install Casters: Insert the casters into the holes at the end of each leg on the assembled base. Push firmly until they click into place.

   Figure 4: Installing the casters.

4. Attach Gas Lift: Place the gas lift cylinder into the central hole of the assembled base.

   Figure 5: Attaching the gas lift.

5. Connect Seat Mechanism: Secure the seat mechanism to the underside of the seat cushion using the designated screws. Ensure the front of the mechanism aligns with the front of the seat.

   Figure 6: Connecting the seat mechanism.

6. Attach Seat to Gas Lift: Carefully place the assembled seat onto the gas lift cylinder, ensuring it is centered and stable.

   Figure 7: Attaching the seat to the gas lift.

7. Attach Backrest: Secure the backrest to the seat mechanism using the remaining screws. Tighten all screws evenly.
8. Install Armrests: Attach the armrests to the sides of the seat and backrest, ensuring they are firmly secured.

4. Operating Instructions

Height Adjustment:

To adjust the chair's height, locate the lever on the right side beneath the seat.

• To raise: Lift the lever while taking your weight off the seat. The chair will rise.
• To lower: Lift the lever while remaining seated. The chair will lower.
• Release the lever to lock the height in place.

Backrest Recline:

The backrest can recline from 90° to 135°. Use the recline lever, typically located on the left side of the seat.

• To recline: Pull the recline lever upwards and lean back to your desired angle. Release the lever to lock the position.
• To return upright: Pull the recline lever upwards and lean forward. The backrest will return to its upright position.

Footrest Operation:

The chair includes a retractable footrest for added comfort.

• To extend: Pull the footrest out from beneath the seat.
• To retract: Push the footrest back under the seat until it is fully stored.

Swivel and Casters:

The chair features a 360° swivel function and smooth-rolling casters for effortless mobility.