HVAC Sets and Air Conditioner Service Kits

What Is an HVAC Set? A Comprehensive Definition

💱 Price Note: The prices stated on this page are USD-based reference values. For the current Turkish lira equivalent and stock status, we recommend visiting the product page. At Yedepa.com, prices are calculated using the daily exchange rate.

An HVAC set is a professional service kit that gathers in a single carrying case everything needed for the installation, commissioning, maintenance and troubleshooting of air conditioning and refrigeration systems (split air conditioners, VRF, cassette type, cold rooms, heat pumps). In Turkey it is also commonly called an "air conditioner installation set" or "installation set", but a real HVAC set is not limited to cutting and bending pipe; it is a complete engineering tool that also covers the vacuuming, pressure measurement, leak testing and refrigerant charging stages.

Think about the scenarios a technician faces in the field: flaring 1/4" gas and 3/8" liquid copper pipe with precise torque; evacuating the moisture and air remaining in the circuit after connection down to below 500 microns; monitoring high and low pressure values simultaneously with a manifold; using a connection port suitable for R32 or R410A refrigerant. Each of these operations requires a separate tool. An HVAC set brings these tools together in compatible sizes, with compatible connections and in a portable form.

HVAC sets are indispensable especially for air conditioner service companies, household appliance technical services, cold room installation teams, and marine and industrial air conditioning technicians. For beginner technicians, buying individual tools one by one is both costly and carries a risk of incompatibility; for experienced technicians, keeping a spare set is critical for business continuity.

Components Inside an HVAC Set (Technical Details)

Knowing the parts that come as standard in an HVAC set and the technical criteria of these parts is the basis for choosing the right set. Below are the components that a comprehensive complete set should contain and the technical values to pay attention to.

1. Tube Cutter (Pipe Cutter)

Used to cut copper pipe cleanly and without burrs. A quality tube cutter works on copper, aluminum and mild steel pipes in the 1/8" to 1-1/8" (3-28 mm) range. A blade made of SK5 or similar high-carbon steel extends its life. A bad cut causes cracks and leaks at the subsequent flaring stage.

2. Deburring Tool (Reamer / Deburrer)

Removes the metal burr left on the inner wall of the pipe after cutting. If the burr is not removed, flow turbulence and pressure drop occur in the pipe, and in the long term contamination builds up in the compressor. Professional sets feature inner and outer deburring.

3. Tube Bending Tool (Tube Bender)

Allows copper pipe to be bent up to 90 degrees without kinking or crushing it. Spring benders are cheap but inadequate for large diameters; lever (ratchet) benders are preferred for professional use with their multi-groove design for 1/4", 5/16", 3/8", 1/2", 5/8". The bending radius must be at least 3 times the outside diameter.

4. Flaring Tool (Flaring Tool)

Ensures the tightness of the nut connection by expanding the end of the copper pipe at a 45-degree angle. Eccentric (off-set) design models reduce the risk of cracking. The standard cone angle should be 45° (SAE); 37° (JIC) is for hydraulics and is not suitable for air conditioners. Professional sets use a torque (ratchet) flaring handle; this prevents overtightening and tearing of the flare.

Flare Tightening Torque Values (Critical)

Wrong torque is the most common cause of refrigerant leaks. Typical torque values by pipe diameter:

1/4" (6.35 mm): 14-18 Nm
3/8" (9.52 mm): 33-42 Nm
1/2" (12.70 mm): 50-62 Nm
5/8" (15.88 mm): 63-78 Nm
3/4" (19.05 mm): 90-110 Nm

These values are achieved with torque flare holders and torque wrenches. Having a torque wrench in the set guarantees that installation is done measurably instead of "by feel".

5. Manifold (Charging Manifold)

Used to read the high (HP) and low (LP) pressure lines of the system simultaneously and to perform vacuuming and refrigerant charging. There are two-valve (R22/R134a/R410A) or three-valve models. Technical criteria of the manifold:

Low pressure (blue) scale: -76 cmHg to 250 psi (approx. 17 bar)
High pressure (red) scale: 0 - 800 psi (approx. 55 bar). Above 500 psi is mandatory for R410A; an R22 manifold is NOT SUITABLE for R410A.
Working fluid: Standard hoses with 1/4" SAE connections; a 5/16" SAE connection is required for R410A.
Sight glass: Allows visual monitoring of the refrigerant flow and the moisture indicator.

R32, R410A, R22 Refrigerant Differences

R32 is a new-generation, low-GWP and mildly flammable (A2L) refrigerant; it shows a pressure characteristic close to R410A, but a separate manifold and hoses are recommended. R22 is an old refrigerant that has been phased out; since its pressures are low (max ~300 psi), an R22 manifold carries a risk of bursting with new refrigerants. The Aitcool and Super Stars sets offered at Yedepa come R32, R410A, R22, R134a compatible.

6. Vacuum Pump and Micron Level

The vacuum pump evacuates the air and moisture remaining in the circuit. The micron is a unit of absolute vacuum (1 micron = 1/1000 mmHg). Industry standards:

Above 1000 microns: Insufficient; moisture remains in the system and ice forms in the expansion valve.
Below 500 microns: Acceptable, clean circuit.
200-300 microns: Excellent; the target for new split air conditioner and VRF installations.

The Hengsen HVAC Vacuum Pump, Manifold, Swaging and Flaring Set offered at Yedepa includes a compact pump that can reach below 500 microns in the air conditioner service field.

CFM and Vacuum Pump Capacity

CFM (Cubic Feet per Minute) is the volume of air the pump draws in one minute. Choosing the right capacity:

1.5 - 2 CFM: 9,000 - 12,000 BTU split air conditioners, household type.
3 - 4 CFM: 18,000 - 36,000 BTU multi-split, refrigerated cabinets.
5 - 6 CFM: VRF, cassette type, cold rooms.
8+ CFM: Industrial air conditioning and large cold storage warehouses.

Two-stage pumps can pull a deeper vacuum (down to 50 microns) than single-stage pumps; however, they cost 2-3 times more.

7. Imperial/Metric Wrench Set

Wrenches in sizes such as 17, 22, 24 and 27 mm should be available for tightening flare nuts. Complete sets include a torque wrench or 1/4", 3/8", 1/2" flare wrenches.

Sets With vs. Without a Manifold

HVAC sets are basically classified into two main categories: with a manifold (complete service set) and without a manifold (installation set). This distinction directly determines which type of work the set is intended for.

Set Without a Manifold: Consists of tube cutting, deburring, bending and flaring tools. It is only sufficient for new installation and pipeline construction. It is economical for technicians who do vacuuming and refrigerant charging with a separate manifold and vacuum pump. Examples: Aitcool HVAC Flaring, Tube Cutting and Bending Complete Set and Hengsen HVAC Tube Bending and Cutting Set.

Set With a Manifold: In addition to all the tools above, it includes a manifold (pressure measurement and charging device). It is mandatory for service, maintenance and troubleshooting. Examples: Super Stars HVAC Set with Manifold, Flaring, Deburring and Tube Cutting and Aitcool HVAC Set with Manifold, Torque Flaring, Deburring and Tube Cutting.

Complete Set with Vacuum Pump: A professional kit that adds a vacuum pump on top of the manifold set and can do everything on its own in the field. Examples: Hengsen HVAC Vacuum Pump, Manifold, Swaging and Flaring Set and Super Stars Complete HVAC Piping Installation and Service Set.

Complete Set vs. Individual Tools — Economic Analysis

A frequently asked question: "Is it more sensible to buy a set or to buy the parts one by one?" Let's calculate using Yedepa's price data.

Individually, a mid-quality torque flaring tool costs around 38-51 USD, a manifold 26-38 USD, a vacuum pump 53-74 USD, a tube cutter 7-11 USD, a bender 17-26 USD, a deburrer 3-5 USD and a wrench set 6-10 USD. In total, the cost comes to 151-215 USD — and since the tools come from different brands, the connection standards may be incompatible, and the carrying case must be bought separately.

A complete HVAC set, for example the Hengsen Vacuum Pump, Manifold, Swaging and Flaring Set at 81 USD or the Super Stars Complete HVAC Piping Installation and Service Set at 204 USD, offers all these tools with compatible connections and a case. Set prices are usually 35-50% below the total of the parts bought separately. That is why a complete set is definitely recommended, especially for beginner technicians and companies that want to grow their service fleet.

Set Selection Criteria

To choose the right HVAC set, three variables need to be clarified: frequency of use, type of intervention, budget.

Frequency of Use

1-2 jobs per week (beginner, side job): An entry-level set in the 32-74 USD range is sufficient. It must include bending, cutting and basic flaring.
5-10 jobs per week (active service): A set with a manifold and torque flaring in the 74-160 USD range should be preferred. Torque flaring seriously reduces the risk of refrigerant leaks.
Daily professional use (service company): A complete set above 160 USD, including a vacuum pump; it is also necessary to keep a spare flaring cone and hoses.

Type of Intervention

New air conditioner installation only: A flaring-cutting-bending set without a manifold is sufficient (Hengsen or Aitcool entry series).
Maintenance + installation: A set with a manifold is mandatory (Aitcool with Manifold or Super Stars with Manifold).
Fault diagnosis + refrigerant charging + large installations: A complete set with a vacuum pump and a digital manifold should be preferred (Super Stars Complete Service Set).

Budget Ranges

Entry level (32 - 64 USD): Hengsen Tube Bending and Cutting Set, Aitcool Flaring, Tube Cutting and Bending Set with Manifold.
Mid level (64 - 128 USD): Aitcool Complete Set, Hengsen Manifold Set with Vacuum Pump, Hengsen Flaring and Bending Set with Manifold.
Professional (128 USD and above): Aitcool Torque Set with Manifold, Aitcool Multi-Refrigerant Compatible Set, Super Stars Set with Manifold, Super Stars Complete Service Set.

Yedepa.com HVAC Set Models and Comparison

Super Stars HVAC Set with Manifold, Flaring, Deburring and Tube Cutting — 230 USD

One of Yedepa's most comprehensive professional sets with a manifold. It includes a torque flaring handle, a wide bending roller, an R410A-compatible two-valve manifold and a durable carrying case. Ideal for a service fleet.

Buy it if: You do 5+ jobs a day at a service company, you work with multiple refrigerants, and you are looking for warranted, long-lasting equipment.

Don't buy it if: You are a hobby/side-job user doing 5-10 installations a year; this budget exceeds your needs, and the lower-level Aitcool set is sufficient.

Super Stars Complete HVAC Piping Installation and Service Set — 204 USD

A full package including a manifold + vacuum pump + flaring + cutting + bending + wrench set. Ideal as the first investment of a newly established service company — nothing will be missing in the field.

Buy it if: You are setting up a service from scratch, you want to buy every tool compatible in one go, and you are looking for the advantage of a package that includes a vacuum pump.

Don't buy it if: You already have a vacuum pump and manifold; in that case it is more economical to buy an additional flaring-cutting-bending set.

Aitcool HVAC Set with Manifold, Flaring, Deburring and Tube Cutting | Multi-Refrigerant Compatibility — 156 USD

Its biggest advantage is that it includes a manifold compatible with R32, R410A, R22 and R134a. Technicians servicing mixed-brand air conditioners are not stuck with one refrigerant type.

Buy it if: You work with systems using different refrigerants, your work mixes cold rooms and air conditioners, and your budget is in the 149-170 USD range.

Don't buy it if: You only install new split air conditioners and never charge refrigerant; the lower model without a manifold is enough.

Aitcool HVAC Set with Manifold, Torque Flaring, Deburring and Tube Cutting — 137 USD

Thanks to the torque flaring handle, the risk of flare cracks and leaks is minimized. It provides measurable torque instead of "feel" for beginner technicians.

Buy it if: You frequently have flare leak problems, you work with an apprentice/assistant, and you want to guarantee a standard.

Don't buy it if: As a technician with years of experience, you make precise flares by hand and only want to work with classic tools.

Artiko Torque HVAC Flaring, Deburring, Tube Cutting and Bending Complete Set — 117 USD

The domestic brand's torque solution. Easy access to spare parts and service; good price/performance balance. Ideal for the mid level.

Buy it if: You prefer a domestic brand in Turkey, you are looking for easy access to spare parts, and you want a torque solution in the 106-128 USD range.

Don't buy it if: A multi-refrigerant manifold is mandatory (this set has no manifold).

Hengsen HVAC Set with Manifold, Flaring, Tube Cutting and Bending — 91 USD

One of the most affordable options among sets with a manifold. The gateway for technicians just starting out in service.

Buy it if: You are buying your first professional set, your budget is in the 85-106 USD range, and you are just learning manifold work.

Don't buy it if: You do 3+ jobs a day and want long-lasting durability.

Hengsen HVAC Vacuum Pump, Manifold, Swaging and Flaring Set — 81 USD

It is very hard to find a set including a vacuum pump in this price range. For users doing side jobs or repairs at home/in their own workshop, it is one of the highest-value sets.

Buy it if: You are buying a vacuum pump for the first time, you work with household 9-12 thousand BTU air conditioners, and your budget is limited.

Don't buy it if: You work on professional lines such as VRF, cassette units and cold rooms; the capacity of this small pump is not enough.

Aitcool HVAC Flaring, Tube Cutting and Bending Complete Set — 65 USD

Without a manifold, for installation only. Ideal for technicians who are new to air conditioner installation and already have a separate manifold.

Buy it if: You only do installations and already have a manifold, and you want an economical option.

Don't buy it if: You will also do maintenance and service; a set without a manifold is inadequate for maintenance.

Hengsen HVAC Tube Bending and Cutting Set — 39 USD

The simplest and cheapest version of the set. Ideal as an additional tool for an assistant or apprentice.

Buy it if: You want it as a spare tool, you are looking for an economical solution for an assistant/apprentice, and you focus only on pipeline work.

Don't buy it if: This will be your only professional set; since there is no flaring tool, air conditioner connections cannot be made.

Aitcool HVAC Flaring, Tube Cutting and Bending Set with Manifold — 33 USD

Having a manifold in this price range is a big plus. Ideal for hobby users and homeowners who want to maintain their own air conditioners.

Buy it if: It is for hobby/home use, you maintain your own systems, and you want to start with a small budget.

Don't buy it if: You will do professional service; in terms of durability and precision, this set is not suitable for intensive daily use.

Decision Table — Set Recommendation by Usage Scenario

Scenario 1 — I am setting up a service from scratch: Super Stars Complete Service Set (204 USD) or Aitcool Multi-Refrigerant Compatible (156 USD).
Scenario 2 — I only install new air conditioners: Aitcool Complete Set (65 USD) or Hengsen with Manifold (91 USD).
Scenario 3 — Mixed-brand air conditioner service (R32+R410A+R22): Aitcool Multi-Refrigerant Compatible (156 USD).
Scenario 4 — Additional tool for an assistant/apprentice: Hengsen Tube Bending and Cutting (39 USD).
Scenario 5 — Hobby / maintaining my own home: Aitcool with Manifold (33 USD).
Scenario 6 — Service fleet, premium durability: Super Stars Professional with Manifold (230 USD).
Scenario 7 — I want the vacuum pump included in the set, limited budget: Hengsen Manifold with Vacuum Pump (81 USD).
Scenario 8 — Torque flaring is a must, mid budget: Artiko Torque Complete (117 USD) or Aitcool Torque with Manifold (137 USD).

Brand Review: Super Stars, Aitcool, Hengsen, Artiko

Super Stars

Positioned in the premium segment. The manifold glass is thick, the hoses withstand high pressure (800+ psi) and the flaring cone is hardened steel. At companies with a service fleet, a service life of more than two years is standard. Spare parts are supplied quickly through Yedepa.

Aitcool

The price/performance champion of the upper-mid segment. Known for its multi-refrigerant compatible manifolds. Its torque flaring models reduce risk, especially for technicians working with apprentices. It is the most preferred brand at Yedepa.

Hengsen

The leader of the entry and mid level. It offers a "professional-feeling" set for technicians with a limited budget. Its model with a vacuum pump is an offer that is hard to find in Turkey in this price range.

Artiko

It stands out with the advantage of being a domestic brand, fast spare parts supply and its complete set including torque flaring. A brand designed according to the ergonomic preferences of Turkish technicians.

Use, Maintenance and Storage

The life of an HVAC set depends directly on the discipline of use and maintenance.

Vacuum pump oil: An oil change is a must every 50-80 hours of use. Dirty oil reduces vacuum performance by up to 30%, and it becomes impossible to get below 500 microns.
Flaring cone: It should be checked for cracks and dents before each use. A cracked cone produces a "star"-shaped flare and causes leaks.
Manifold hoses: The o-rings at the connection ends should be checked every 3-6 months, and those that have lost their elasticity should be replaced.
Tube cutter blade: A dull blade increases burrs and bends the pipe during cutting. Spare blades should be kept in stock along with the set.
Storage: The set case should be kept dry and away from moisture; the manifold gauges should be left zeroed (unpressurized).
Transport: When carrying the vacuum pump, it should be kept in a position (upright) where its oil will not spill.

Frequently Asked Questions (FAQ)

How many years does an HVAC set last?

5-7 years with light use, 2-4 years with professional daily use. Its life is extended when the vacuum pump oil is changed and the flaring cone is renewed.

Can an R410A manifold be used on an R32 air conditioner?

An R410A manifold is suitable for R32 because the pressure ranges are similar. However, since R32 is mildly flammable (A2L), it is essential to use non-sparking equipment and to work in a ventilated area. An R22 manifold, on the other hand, must never be used for R32/R410A — there is a risk of bursting.

How do I get down to 500 microns with a vacuum pump?

1) The pump oil must be clean. 2) The hose o-rings must be intact. 3) The system must be dry (if there is moisture, it takes longer). 4) Vacuum must be pulled for at least 15-30 minutes. 5) Measurement must be made with a micron gauge; an analog manifold cannot measure the micron level.

Is torque flaring a must?

It is not a must, but it is recommended. Especially for new technicians and those working with apprentices, it seriously reduces the rate of flare cracks and leaks. Experienced technicians can make precise flares by hand.

If I buy a set with a manifold, do I also need to buy a vacuum pump?

Yes, you do. The manifold measures pressure and charges refrigerant; vacuuming requires a separate pump. The only exception is sets that include a pump, such as the Hengsen Manifold Set with Vacuum Pump.

Can I work not only on air conditioners but also on household appliances with an HVAC set?

Yes. With sets whose manifold is R134a compatible, you can also work on refrigeration appliances such as refrigerators, water dispensers and chest freezers. The Aitcool Multi-Refrigerant Compatible set stands out in this respect.

Which set should I buy for an apprentice?

Since the margin of error is high for an apprentice, choose a set with torque flaring. The Artiko Torque Complete or Aitcool Torque with Manifold models are an ideal start.

How long should the warranty be on the manifold in the set?

Professional manifolds should have at least a 1-year manufacturer warranty. All brands sold at Yedepa come with a manufacturer warranty; in case of a fault, spare parts or replacement are provided.

Conclusion + Yedepa Advantages

The choice of HVAC set directly determines the quality, speed and safety of a technician's work. A wrongly chosen cheap set leads to costly consequences later, such as refrigerant leaks, customer complaints and callbacks. A correctly chosen set both saves time and raises the standard of the work.

In light of the technical criteria shared in this guide: if you do daily professional work, Super Stars or Aitcool upper-series sets; if you do mid-level service, Aitcool Torque with Manifold or Artiko Complete; if you are a side-job / hobby user, Hengsen or Aitcool entry-series sets are the most suitable choice.

Yedepa.com advantages:

Supplied from stock: All HVAC sets listed at Yedepa are in stock in Turkey; fast shipping after ordering.
Technician + service focused (B2B): Yedepa's customer base consists of air conditioner service companies, household appliance technicians and refrigeration installation teams — products are selected for this audience.
Multi-brand comparison: Options from different brands and price ranges, such as Super Stars, Aitcool, Hengsen and Artiko, in the same category; free choice according to budget.
Warranty and spare parts support: Manufacturer warranty + Yedepa keeps complementary products such as spare blades, hoses, cones and vacuum pump oil in stock.
Technical consulting: Pre-sales support on which set suits your work.

To get a definite recommendation on choosing an HVAC set that fits your budget and type of intervention, you can contact Yedepa customer service; using the decision table in this guide as a basis, you can make a well-balanced price-performance choice.