Roof Curb Installation

CAUTION

Before lifting a unit, make sure that the weight is distributed equally on the cables so that it will lift evenly.

Exercise care when moving the unit. Do not remove any packaging until the unit is near the place of installation. An accessory lift kit can be purchased to aid in rigging. Spreaders whose length exceed the largest dimension across the unit must be used across the top of the unit.

Units may also be moved or lifted with a forklift while still in the factory supplied packaging. The lengths of the forks of the forklift must be a minimum of 42".

If a roof curb is used, follow the manufacturer’s Installation Instructions and be sure that all required clearances are observed (see Clearances section on this page).

This unit is shipped with four corner brackets in place on the underside of the unit (see Figure 1). All four brackets must be removed before unit is installed onto roof curb assembly.

To avoid interference with roof curb remove the outer most screw attaching the outdoor coil filler panel to the unit base, and calk the open hole.

Clearances

All units require certain clearances for proper operation and service. Refer to Table 2 for the minimum clearances to combustibles required for construction, servicing, and proper unit operation.

Clearance to combustibles below the unit flue is 10" since the flue points down.

Do not permit overhanging structures or shrubs to obstruct condenser air discharge outlet, combustion air inlet, or vent outlet.

Minimum Clearances to Combustibles

	Front of Unit	24”

	Back of Unit	2”

	Left Side	12”

	Right Side	15”
	(from Vent Cover)	15”
	(from Vent Cover)

	Below Unit *	0”

*Minimum clearance to combustible material below the flue is 10" to allow proper dissipation of flue gasses and temperatures.

Table 1

In the U.S., units may be installed on combustible floors made from wood or class A, B, or C roof covering material. In Canada, units may be installed on combustible floors. Units must be installed outdoors.

Corner Brackets

Bracket	Bracket
Return	Supply
Coil Close
Off
Bracket	Bracket

Remove all four (4) corner brackets before installing on roof curb.

Figure 1

Service Access

Access to all serviceable components is provided by four removable panels: blower compartment, evoporator coil/filter compartment, burner compartment, and main control box.

Combustion Discharge

The vent outlet must be installed in a location as to prevent building degradation and must be consistent with the National Fuel Gas Code, Z223.1 or CAN/CGA-B149.1 & .2.

The products of combustion are discharged through a screened opening on the gas heat side panel. The horizontal vent system shall terminate at least 4' below, 4' horizontally from, or 1' above any door, window, or gravity air inlet into the building. The vent system shall terminate at least 3' above any forced air inlet located within 10'.

The unit shall be installed in a manner such that snow accumulation will not restrict the flow of flue products.

506271-01

Issue 0921

Page 3 of 14

506271-01 specifications

Allied Air Enterprises has positioned itself as a leader in the HVAC industry, and one of its standout products is the 506271-01 unit. This particular model exemplifies the innovative engineering and commitment to quality that defines Allied Air's approach.

The 506271-01 is designed for residential applications, making it an ideal choice for homeowners looking for efficient and reliable heating and cooling solutions. It operates with a focus on energy efficiency, enhancing comfort while minimizing electricity costs. The unit meets or exceeds the efficiency standards set by the industry, ensuring that users can enjoy consistent performance throughout the year.

One of the key features of the 506271-01 is its robust construction. Built with high-quality materials, this unit is designed to withstand the rigors of daily use and maintain functionality in various environmental conditions. Its compact design allows for easy installation in tight spaces, making it versatile for various home layouts.

Another noteworthy aspect of the 506271-01 is its advanced technology integration. The unit comes equipped with a digital thermostat that provides precise temperature control. This feature allows homeowners to set personalized comfort levels easily while optimizing energy consumption. Additionally, the model supports smart home integration, enabling remote access and control via mobile devices, which adds convenience and efficiency to everyday heating and cooling.

Moreover, the 506271-01 prioritizes the user experience by including noise-reduction technology. This ensures that operation remains quiet, allowing for a peaceful indoor environment free from disruptive sounds. The unit operates using environmentally-friendly refrigerants, aligning with the industry's shift towards greener technologies and contributing positively to environmental conservation efforts.

Maintenance is also simplified with the 506271-01, as it features accessible components that allow for easy servicing. This not only extends the life of the unit but also helps in reducing long-term costs associated with repairs and replacements.

In summary, Allied Air Enterprises’ 506271-01 is a powerful yet efficient HVAC solution that offers homeowners advanced technology, user-friendly features, and reliable performance—all while promoting energy conservation and environmental responsibility.