•Install the unit high enough above the ground or roof to allow adequate drainage of defrost water and prevent ice buildup.

•In heavy snow areas, do not locate the unit where drifting snow will occur. The unit base should be elevated above the depth of average snows.

NOTE: Elevation of the unit may be accomplished by construction a frame using suitable materials. If a support frame is constructed, it must not block drain holes in unit base.

•When installed in areas where low ambient temperatures exist, locate unit so winter prevailing winds do not blow directly into outdoor coil.

•Locate unit away from overhanging roof lines which would allow water or ice to drop on, or in front of, coil or into unit.

If unit coil cannot be mounted away from prevailing winter winds, a wind barrier should be constructed (See Figure 3). Size the barrier at least the same height and width as the outdoor unit. Mount barrier 24” from the sides of the unit in the direction of the prevailing winds.

Slab Mounting

When installing a unit at grade level, install on slab high enough above grade so that water from higher ground will not collect around the unit (See Figure 2). Slab should have a slope tolerance away from the building of 2° or 2” per 5’. This will prevent ice from building up under the unit during a defrost cycle. Refer to following roof mounting section for barrier construction if unit must face prevailing winter winds.

Slab Mounting

Discharge Air

Building

Structure

Mounting Slab

Ground Level

Figure 2

Roof Mounting

Install unit at a minimum of 6” above surface of the roof to avoid ice buildup around the unit. Locate the unit above a load bearing wall or area of the roof that can adequately support the unit. Consult local codes for rooftop applications.

Figure 3

Electrical Wiring

All field wiring must be done in accordance with the National Electrical Code (NEC) recommendations, Canadian Electrical Code (CEC) and CSA Standards, or local codes, where applicable.

Refer to the furnace or blower coil installation instructions for additional wiring application diagrams and refer to unit rating plate for minimum circuit ampacity and maximum overcurrent protection size.

WARNING

Unit must be grounded in accordance with national and local codes. Failure to ground unit properly can result in personal injury or death.

WARNING

Line voltage is present at all components when unit is not in operation on units with single pole contactors. Disconnect all remote electric power supplies before opening access panel. Unit may have multiple power supplies. Failure to disconnect all power supplies could result in personal injury or death.

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Allied Air Enterprises 4AC18LT manual Slab Mounting, Roof Mounting, Electrical Wiring
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4AC18LT specifications

Allied Air Enterprises has made significant strides in the HVAC industry with the introduction of its 4AC18LT air conditioner. This model is part of a premium line of products that emphasizes efficiency, reliability, and advanced cooling technology. The 4AC18LT is specifically designed to meet the diverse needs of both residential and light commercial applications, making it a versatile choice for many consumers.

One of the standout features of the 4AC18LT is its impressive Seasonal Energy Efficiency Ratio (SEER) rating. With a SEER rating of up to 18, this unit is engineered to provide excellent energy efficiency, significantly reducing electricity consumption while delivering consistent cooling performance. As energy costs continue to rise, homeowners and businesses can benefit greatly from this efficiency, leading to lower monthly utility bills and a reduced carbon footprint.

The 4AC18LT employs advanced R-410A refrigerant, which is known for its environmentally friendly properties. Unlike older refrigerants that contribute to ozone depletion, R-410A is more stable and offers better heat transfer capabilities, which enhances the overall performance of the unit. This focus on eco-friendliness aligns with contemporary environmental standards and regulations, ensuring that users are making a responsible choice for their cooling needs.

In terms of design, the 4AC18LT features a robust and compact frame that is built to withstand the rigors of outdoor installation. The unit's durability is further enhanced by its corrosion-resistant finish, which protects the coil and cabinet from harsh weather conditions, extending the life span of the system.

Noise reduction technology is another highlight of the 4AC18LT. This model is designed with a quieter operation in mind, utilizing a sound blanket and insulated compressor compartment. These features work together to minimize noise levels, allowing users to enjoy a comfortable indoor environment without disruptive sound.

The 4AC18LT also supports advanced controls and compatibility with smart thermostats, providing users with greater flexibility and convenience. Homeowners can take advantage of programmable features, enabling them to optimize cooling schedules for energy savings and increased comfort.

Overall, Allied Air Enterprises’ 4AC18LT air conditioner combines efficiency, environmental responsibility, durability, and user-friendly features, making it an excellent choice for those in need of reliable cooling solutions. Whether installed in a residential or light commercial setting, the 4AC18LT promises to deliver exceptional performance and peace of mind.
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