Iowa Disconnecting & Reconnecting Air Conditioning Refrigeration Systems Contractor Ultimate Exam Prep Rental Package

Prepare for the Iowa Disconnecting & Reconnecting Existing Air Conditioning and Refrigeration Systems Examination with an Ultimate Exam Prep Rental Package designed around Iowa's specialty electrical licensing pathway and the 2023 National Electrical Code. This package combines highlighted and tabbed rental references, 1 year of course access, and Application Service to provide an organized approach to exam preparation and the Iowa Special Electrician licensing process.

The package includes rental copies of the National Electrical Code Handbook, 2023 and Ugly's Electrical References. Both books are supplied highlighted and tabbed to support structured study, faster reference navigation, electrical calculations, and review of the code requirements associated with air-conditioning and refrigeration equipment.

In Iowa, Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems is a specialty electrical endorsement under the Special Electrician license. Candidates using the examination pathway must receive testing sponsorship from the Iowa Electrical Examining Board before registering for the state-approved PSI examination.

The examination and current Iowa electrical testing are based on the 2023 National Electrical Code. Preparation should focus on electrical fundamentals, branch circuits, conductors, grounding and bonding, wiring methods, raceways and enclosures, motors, controls, disconnecting means, overcurrent protection, and the electrical requirements associated with existing air-conditioning and refrigeration equipment.

The National Electrical Code Handbook, 2023 is the exam-room reference included in this package. Ugly's Electrical References is included as a highlighted and tabbed study resource for formulas, conductor information, motor information, voltage drop, grounding, calculations, and other practical electrical concepts.

Please allow up to 15 business days for ultimate book package orders.

The package price is $1,315 plus a refundable deposit of $200, for a total initial payment of $1,515. Both books included with this package are rental books and are supplied highlighted and tabbed.

The Ultimate package also includes 1 year of course access and Application Service, giving candidates an extended study period while providing support with the Iowa licensing application process associated with the specialty endorsement.

Exam Details

The Iowa Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems examination is administered through PSI for the Iowa Electrical Examining Board.

Candidates are provided 120 minutes for the examination. Iowa requires a passing score of 70% or higher on the Board-approved examination for candidates qualifying through the exam pathway.

The examination focuses on electrical knowledge directly related to disconnecting and reconnecting existing air-conditioning and refrigeration systems. Important preparation areas include:

• General Electrical Knowledge
• Feeders and Branch Circuits
• Grounding and Bonding
• Raceways and Enclosures
• Conductors
• Motors and Controls
• Special Occupancies

Because HVAC and refrigeration equipment frequently incorporates compressors, motors, controllers, disconnects, flexible wiring methods, outdoor equipment, and equipment-specific ratings, candidates should become comfortable moving between general NEC rules and the sections that specifically address air-conditioning, refrigeration, motors, and equipment wiring.

Open Book Test

The Iowa Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems examination is an open book test using approved electrical code reference material.

The current Iowa electrical examinations use the 2023 National Electrical Code. The National Electrical Code Handbook, 2023 included with this package gives candidates the NEC text together with explanatory material that can help support study and code navigation.

The highlighted and tabbed format is intended to help candidates develop a repeatable method for locating important electrical subjects during preparation. Open-book testing still requires strong familiarity with the code because candidates must identify the subject of a question, determine which NEC provision applies, and locate the information within the testing period.

Ugly's Electrical References should be used during preparation for formulas, electrical calculations, conductor information, voltage drop, motors, grounding, transformers, and other practical reference material. Candidates should also practice solving electrical problems without relying on Ugly's so they are comfortable working from the approved exam reference and their retained knowledge.

Licensing Steps

The Iowa Electrical Examining Board administers the licensing pathway for this specialty electrical endorsement. Candidates should follow the requirements that apply specifically to the Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems endorsement.

1. Select the appropriate Special Electrician endorsement. The applicable specialty is Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems.
2. Choose the qualification pathway. Iowa allows applicants to qualify through the Board-approved examination or through the applicable documented experience pathway.
3. Submit the Iowa electrical license application. Candidates using the examination route must complete the application associated with the specialty license.
4. Request testing sponsorship. The Iowa Electrical Examining Board must approve sponsorship before the candidate can register with PSI.
5. Receive authorization to test. Once approved, the candidate receives the information required to schedule the examination.
6. Prepare using the 2023 NEC. Study electrical fundamentals, conductors, motors, controls, grounding, branch circuits, wiring methods, equipment ratings, and HVAC/refrigeration electrical requirements.
7. Use the highlighted and tabbed NEC Handbook throughout preparation. Practice locating frequently tested code subjects quickly and accurately.
8. Take the Board-approved PSI examination. The current examination allows 120 minutes.
9. Achieve a passing score of at least 70%. Candidates must meet Iowa's passing standard when qualifying through examination.
10. Complete the remaining licensing requirements. Submit any final documentation required for the Special Electrician license and endorsement.

Application Service is included with this Ultimate package. This service provides assistance with organizing and working through the application process associated with the Iowa Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems credential.

State Requirements

Iowa recognizes Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems as a specialty endorsement under the Special Electrician license. The authorization is narrower than a full Master Electrician or Journeyman Electrician license and applies to the specialty electrical work identified by the endorsement.

Current Iowa licensing information provides an examination pathway for this endorsement. Candidates seeking to qualify by examination must obtain sponsorship from the Iowa Electrical Examining Board before registering with PSI.

Iowa's current testing sponsorship requirements state that candidates for the Special Electrician Irrigation and Disconnect/Reconnect endorsements do not have a license or experiential requirement solely to receive sponsorship for the examination.

The licensing pathway also recognizes documented trade experience as an alternative to examination. The applicant must satisfy the experience standard established by the Iowa Electrical Examining Board for disconnecting and reconnecting existing air-conditioning and refrigeration systems.

Iowa also provides an exception for certain individuals licensed through the Iowa Plumbing and Mechanical Systems Board. A person holding an eligible Master HVAC, Journeyperson HVAC, Master Refrigeration, or Journeyperson Refrigeration license may perform the limited disconnect/reconnect work covered by that exception without obtaining a separate Electrical Examining Board license solely for that purpose.

The scope should be understood carefully. This specialty concerns existing air-conditioning and refrigeration equipment. It does not create the same electrical authority as a full Iowa Master or Journeyman Electrician license.

Iowa currently uses the 2023 National Electrical Code as the statewide minimum electrical standard. Since June 2, 2026, Iowa has applied the unamended 2023 NEC as the statewide baseline except for exclusions or requirements specifically established in Iowa law.

Reference Books

• National Electrical Code Handbook, 2023
  Included Book: A highlighted and tabbed rental copy of the primary electrical code reference used for current Iowa electrical examination preparation. The Handbook contains the complete 2023 NEC along with explanatory material covering conductors, branch circuits, grounding and bonding, raceways, enclosures, motors, controllers, disconnecting means, overcurrent protection, and electrical requirements for air-conditioning and refrigeration equipment.
• Ugly's Electrical References
  Included Book: A highlighted and tabbed rental study reference covering electrical formulas, Ohm's law, conductor information, voltage drop, grounding, motors, transformers, calculations, conversions, and frequently used field information. It is included to reinforce electrical theory and calculation skills during preparation.

Exam Room Approved Books

• National Electrical Code Handbook, 2023
  The highlighted and tabbed NEC Handbook included in this Ultimate rental package is the exam-room electrical code reference for this package. Candidates should use the same reference throughout preparation to develop faster navigation habits.

Ugly's Electrical References is included as a preparation resource rather than the primary exam-room code reference.

Test Information and Study Materials

General Electrical Knowledge should form the foundation of preparation. Review voltage, current, resistance, electrical power, Ohm's law, conductor characteristics, electrical terminology, and calculations. A strong understanding of fundamentals makes it easier to interpret equipment and motor questions.

Ugly's Electrical References can support review of formulas and commonly used electrical information. Candidates should practice working through calculations involving voltage, current, resistance, power, and voltage drop until the process becomes familiar.

Feeders and Branch Circuits are important because HVAC and refrigeration equipment must be supplied correctly. Study circuit ratings, conductor sizing, overcurrent protection, disconnecting means, and how equipment information affects the circuit supplying the equipment.

Grounding and Bonding should receive dedicated study. Candidates should understand equipment grounding conductors, bonding requirements, fault-current paths, grounding connections, and the role grounding and bonding play in protecting personnel and equipment.

Raceways and Enclosures are especially relevant because air-conditioning and refrigeration equipment may be installed outdoors, on rooftops, in mechanical rooms, or in other locations exposed to moisture, weather, vibration, or physical damage.

Review flexible wiring methods, raceways, fittings, boxes, enclosures, wet-location requirements, support, protection from physical damage, and equipment connections. Candidates should recognize when the environment affects the type of wiring method or enclosure that may be used.

Conductors are another key area. Study conductor ampacity, insulation types, temperature limitations, conductor identification, equipment grounding conductors, correction and adjustment concepts, and the relationship between conductor size and equipment ratings.

Air-conditioning and refrigeration equipment often has nameplate values such as minimum circuit ampacity and maximum overcurrent protection. Candidates should understand that equipment-specific NEC rules can affect conductor and protective-device selection.

Motors and Controls deserve substantial preparation because compressors, blowers, fans, pumps, and other HVAC/refrigeration components frequently involve motors and control circuits.

Candidates should distinguish among motor conductor sizing, overload protection, branch-circuit short-circuit and ground-fault protection, controllers, and disconnecting means. These requirements serve different functions and can have different sizing rules.

Study the NEC provisions that specifically apply to air-conditioning and refrigeration equipment, including requirements associated with hermetic refrigerant motor-compressors. Learn when those equipment-specific rules take priority over more general motor provisions.

Special Occupancies should also be reviewed. HVAC or refrigeration equipment installed in specialized locations may be subject to additional electrical requirements because of the occupancy or surrounding environment.

A strong study method is to work through realistic equipment scenarios. For example, consider replacing or servicing an existing outdoor condensing unit. Identify the equipment rating, conductors, disconnect, grounding method, overcurrent protection, wiring method, and motor-control considerations that must be evaluated before reconnection.

This scenario-based approach helps candidates connect NEC language to the actual work authorized by the Iowa specialty endorsement.

The highlighted and tabbed NEC Handbook should remain central to preparation. Practice locating subjects such as motors, air-conditioning equipment, conductors, grounding, branch circuits, raceways, disconnects, and overcurrent protection without relying solely on the index.

The examination allows 120 minutes, so candidates should develop efficient reference-navigation habits. Spending too long locating a single requirement can reduce the time available for calculations and more complicated questions.

When a practice question is missed, determine the reason. The error may involve selecting the wrong NEC article, misinterpreting equipment nameplate information, using the wrong conductor rule, confusing overload protection with short-circuit protection, overlooking grounding requirements, or failing to recognize an equipment-specific code provision.

This Ultimate package includes 1 year of course access, giving candidates an extended preparation period to review the specialty electrical material, revisit difficult topics, practice calculations, and improve NEC navigation.

Please allow up to 15 business days for ultimate book package orders.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports candidates preparing for the Iowa Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems examination through organized study guidance, electrical trade-focused review, practice-oriented preparation, calculations, and NEC reference navigation.

The highlighted and tabbed National Electrical Code Handbook, 2023 provides an organized code reference candidates can use throughout preparation to develop familiarity with the electrical requirements surrounding conductors, motors, grounding, raceways, protection, controls, and HVAC/refrigeration equipment.

The included Ugly's Electrical References supports electrical formulas, conductor data, voltage drop, motor information, grounding, transformers, conversions, and practical calculations.

This Ultimate package provides 1 year of course access, allowing additional time to study the electrical material, revisit challenging concepts, work through practice-oriented preparation, and strengthen reference-navigation skills.

Application Service is also included, providing support with the application process associated with pursuing the Iowa Special Electrician Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems endorsement.

1 Exam Prep encourages candidates to focus not only on memorizing information but also on learning how electrical rules work together in actual HVAC and refrigeration service situations. The goal is to strengthen code knowledge, improve calculation accuracy, build faster NEC-navigation habits, and create a more organized preparation structure for the Iowa specialty examination.

How much time is allowed for the Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems exam?

The current examination provides 120 minutes.

What score is required to pass?

Candidates using the examination pathway must earn a score of at least 70% on the Board-approved examination.

Is the Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems exam open book?

Yes. The examination is an open book test using approved electrical code reference material.

Which NEC edition should I study?

Current Iowa electrical testing is based on the 2023 National Electrical Code.

Are the rental books highlighted and tabbed?

Yes. Both books included with this Ultimate package are supplied highlighted and tabbed.

What books are included?

The package includes rental copies of the National Electrical Code Handbook, 2023 and Ugly's Electrical References.

How long is the course access?

The Ultimate Exam Prep Rental Package includes 1 year of course access.

Is Application Service included?

Yes. Application Service is included with this Ultimate package.

What is the price of the Iowa Disconnecting & Reconnecting Air Conditioning Refrigeration Systems Contractor Ultimate Exam Prep Rental Package?

The package price is $1,315 plus a refundable deposit of $200, for a total initial payment of $1,515.

Is the $200 deposit refundable?

Yes. The $200 portion of the initial payment is identified as a refundable deposit.

What Iowa license covers this work?

Iowa licenses this specialty through the Special Electrician license with the Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems endorsement.

Do I need experience before Iowa will sponsor me for the exam?

Iowa's current testing sponsorship requirements state that Special Electrician candidates seeking the Disconnect/Reconnect endorsement have no license or experiential requirement solely to receive sponsorship for the examination.

Can some Iowa HVAC or refrigeration license holders perform this work without the separate electrical endorsement?

Yes. Iowa provides an exception for certain qualifying Master HVAC, Journeyperson HVAC, Master Refrigeration, and Journeyperson Refrigeration license holders issued credentials through the Iowa Plumbing and Mechanical Systems Board.

Do I need Iowa approval before scheduling with PSI?

Yes. Candidates using the examination pathway must obtain testing sponsorship from the Iowa Electrical Examining Board before registering for the examination through PSI.

How long should I allow for the Ultimate package order?

Please allow up to 15 business days for ultimate book package orders.

Why choose the Iowa Disconnecting & Reconnecting Air Conditioning Refrigeration Systems Contractor Ultimate Exam Prep Rental Package?

The Ultimate package combines highlighted and tabbed rental references, 1 year of course access, and Application Service to support organized preparation involving NEC navigation, motors and controls, conductors, grounding and bonding, branch circuits, raceways, HVAC and refrigeration equipment, and the Iowa specialty licensing process.