Mount the Indoor Unit to the Floor for Quantum Ultra Floor-Ceiling Flex (UYT-24) SystemsUpdated 12 days ago

Introduction

This article explains how to mount the indoor unit of Quantum Ultra Floor-Ceiling Flex (UYT-24) systems to the floor. The article provides the procedure for installing the hanging bolt first, then the installation steps for mounting the indoor unit to the floor. 

This system can also be mounted to the ceiling. For information, see this article. 

Pre-Installation Preparation

1. Select an installation location that provides unobstructed airflow and adequate access for maintenance. Avoid positioning the unit near obstacles that may restrict air intake or discharge. 
2. Mount the indoor unit to a structurally sound wall that can fully support the unit's weight. The wall surface must be flat and level to allow the unit to sit flush against it. An uneven surface may cause vibration and could result in operational issues or physical damage to the unit. 
3. Dislodge and remove both side panels as well as the return air grille of the indoor unit. Set them aside.
4. Select the piping and drainage exit pathway, both the rear side and below side are available.

Install the Hanging Bolt

1. Use four 3/8 inch mounting bolts and eight washers/nuts to suspend the indoor unit. The mounting bolts are not included with the system.  
2. The center-to-center distance between the bolts must match the specifications provided for the unit size. 
3. Follow the specific installation diagram and measurements provided to complete the hanging bolt installation. 
4. The available mounting methods apply to both ceiling and floor applications. 
5. Confirm the bolts are properly spaced and perfectly level. 
6. Hang the indoor unit onto the mounting bolts. 
7. Confirm the unit is perfectly level. 

Installation Steps

1. After positioning the hanging bolts into place, slide one nut and washer onto to each bolt. Position the nuts slightly above the final resting place of the four suspension brackets. Use tape to keep the washer in place. 
2. Align the four hanging bolts into the T-groove of the indoor unit's hanging bracket. The hanging bolts are not included with the system. 
3. Carefully lift and suspend the indoor unit using two people or a mechanical lifting device. 
4. Ensure that the unit is sufficiently level using a bubble level/built-in level indicator (more than a 10° upward tilt).
5. Attach these components in the following order: 
   • Nut (upper)
   • Gasket (upper)
   • Suspension bracket
   • Gasket (lower)
   • Nut (lower)

Structure Mounting Methods

Finished Concrete (Brick or Slab)

• Use expansion bolts to fix the hanging hooks directly into the concrete. 
• Drill to a depth of 45-50 mm to ensure secure anchoring. 

New Concrete Bricks

• Use one of the following methods to embed the screw bolts: 
  • Blade-type insertion. 
  • Slide-in channel insertion. 
• Ensure that the screw bolts are anchored firmly into embedded steel reinforcement bars.

Steel Roof Beam Structure

• Install supporting angle steel brackets. 
• Mount the hanging bolts through the brackets and secure as shown in the illustration. 

Wooden Construction

• Secure the angle iron across the wooden joints. 
• Secure the hanging bolts through the channel and into the ceiling structure below.

Final Mounting Notes

• Use a 3/8-inch locking nut to secure the final assembly. Fine-tune the adjustment until the handler is level. 
• Tighten all the nuts firmly to ensure a stable and vibration-free installation, then re-check for levelness. 
• Leave an upward tilt of 1-2/100 for drainage. 
• The air gap should 3/4 of an inch (19 mm) or less.