Iowa Disconnecting & Reconnecting Air Conditioning Refrigeration Systems Contractor - Books & Courses Rental Package

Prepare for the Iowa Disconnecting & Reconnecting Existing Air Conditioning and Refrigeration Systems Examination with a books and courses rental package built around the current Iowa specialty electrical exam and the 2023 National Electrical Code. This package combines highlighted and tabbed rental books with 6 months of course access to support organized study of HVAC and refrigeration electrical connections, motors and controls, conductors, grounding and bonding, raceways, enclosures, feeders, branch circuits, and other subjects included in the PSI examination.

The package includes the National Electrical Code Handbook, 2023 and Ugly's Electrical References. Both rental books are supplied highlighted and tabbed to help candidates organize their study and develop more efficient reference-navigation habits.

The Iowa Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems credential is issued as a specialty endorsement on the state's Special Electrician license. The examination is administered through PSI for the Iowa Electrical Examining Board and is based on the 2023 National Electrical Code.

The 2023 National Electrical Code Handbook is the exam-room-approved reference included in this rental package. PSI permits candidates to use either the 2023 NEC or the 2023 NEC Handbook. The approved reference may be highlighted, underlined, indexed, and prepared with permanent tabs before testing.

Ugly's Electrical References is included as a highlighted and tabbed study resource for electrical formulas, conductor information, voltage drop, motors, grounding, conversions, and practical electrical calculations, but it is not permitted inside the current PSI examination center.

Please allow up to 15 business days for book & course rental package orders.

The package price is $890 plus a refundable deposit of $200, for a total initial payment of $1,090. Both books supplied with this package are rental books and are highlighted and tabbed for organized exam preparation.

Exam Details

The current Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems Examination contains 50 scored questions. Candidates receive 120 minutes for the scored portion and must achieve at least 70% correct to pass.

The examination also contains 5 non-scored questions. PSI provides an additional 15 minutes for those questions. The non-scored items are used for examination development and do not affect the candidate's final score.

The current examination content outline is:

• General Knowledge – 10%
• Feeders and Branch Circuits – 10%
• Grounding and Bonding – 10%
• Raceways and Enclosures – 14%
• Conductors – 18%
• Motors and Controls – 30%
• Special Occupancies – 8%

Motors and Controls is the largest content area at 30% of the examination. Conductors represent another 18%, while Raceways and Enclosures account for 14%. Together, those three areas make up more than half of the published examination outline.

The remaining examination categories cover General Knowledge, Feeders and Branch Circuits, Grounding and Bonding, and Special Occupancies. Candidates should prepare across the entire outline because disconnecting and reconnecting HVAC and refrigeration systems can require several electrical concepts to be applied to the same piece of equipment.

Open Book Test

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

PSI currently permits candidates to bring either the NFPA 70 National Electrical Code, 2023 Edition or the NFPA 70 National Electrical Code Handbook, 2023 into the examination center. This rental package includes the 2023 NEC Handbook.

The approved NEC reference may be highlighted, underlined, and indexed before the examination. Permanent tabs are also permitted. PSI defines permanent tabs as tabs that would tear the page if removed.

Temporary removable tabs, such as Post-it-style tabs or other tabs that can be removed without tearing the page, are not permitted. Candidates may not bring additional loose or attached papers with their approved reference.

References may not contain handwritten notes, and candidates may not write, highlight, underline, or index their reference during the examination session.

Ugly's Electrical References is not permitted inside the current examination center. It is included with this rental package for study of formulas, voltage drop, conductor information, motors, grounding, transformers, conversions, and other electrical calculations.

The highlighted and tabbed NEC Handbook should be used repeatedly during preparation. Open-book testing still requires efficient navigation, especially when questions involve several connected requirements such as conductor sizing, motor protection, grounding, equipment disconnects, and raceway selection.

Licensing Steps

Iowa electrical licensing is administered by the Iowa Electrical Examining Board through the Department of Inspections, Appeals, and Licensing. Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems is a specialty endorsement associated with the Iowa Special Electrician license.

1. Select the applicable Special Electrician endorsement. The endorsement is identified as Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems.
2. Choose the qualification pathway. Iowa permits applicants to qualify by passing a supervised examination approved by the Board or by meeting the documented experience requirement.
3. Submit the applicable Iowa license application. Candidates using the examination pathway complete the application materials required by the Iowa Electrical Examining Board.
4. Request testing sponsorship. Iowa requires Board authorization before scheduling the examination through PSI.
5. Receive authorization to test. After approval, the candidate may schedule the PSI examination.
6. Prepare for the 2023 NEC-based examination. Study the seven published content areas and practice electrical code navigation, calculations, motor and control questions, conductor sizing, grounding, and wiring methods.
7. Use the highlighted and tabbed NEC Handbook throughout preparation. Build familiarity with code articles and tables that apply to HVAC and refrigeration electrical equipment.
8. Complete the PSI examination. The scored portion contains 50 questions and provides 120 minutes.
9. Earn at least 70%. Candidates using the examination pathway must meet the current passing standard.
10. Complete the remaining Special Electrician licensing process. Follow the Iowa Electrical Examining Board requirements for issuance of the license with the applicable endorsement.

State Requirements

Iowa identifies Disconnecting and Reconnecting Existing Air Conditioning and Refrigeration Systems as an endorsement available on the Special Electrician license.

Current Iowa administrative rules provide two principal ways to qualify for this endorsement. An applicant may pass a supervised examination approved by the Iowa Electrical Examining Board or complete two years of documented experience in the disconnecting and reconnecting of existing air-conditioning and refrigeration systems.

The specialty is different from an unrestricted Master Electrician or Journeyman Electrician license. It is intended for the specific class of electrical work identified by the endorsement.

Iowa also provides an exception for certain individuals licensed through the state's Plumbing and Mechanical Systems Board. Holders of qualifying Iowa master or journeyperson HVAC/refrigeration or mechanical licenses may not be required to hold the separate Electrical Examining Board endorsement solely to disconnect and reconnect existing air-conditioning and refrigeration systems.

Applicants following the examination pathway must receive testing sponsorship from the Iowa Electrical Examining Board before scheduling with PSI. Passing the approved Iowa PSI examination with a score of 70% or higher satisfies the examination component of this specialty licensing pathway.

Iowa currently uses the 2023 National Electrical Code as the statewide minimum electrical standard. Current Iowa requirements reflect the unamended 2023 NEC as the statewide baseline, subject to provisions specifically established in Iowa law.

Reference Books

• National Electrical Code Handbook, 2023
  Included Rental Book: A highlighted and tabbed rental copy of the primary code reference approved for the current Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems examination. The Handbook contains the complete 2023 NEC together with explanatory material supporting study of branch circuits, conductors, grounding and bonding, raceways, enclosures, motors, controls, disconnecting means, overcurrent protection, and air-conditioning and refrigeration equipment.
• Ugly's Electrical References
  Included Rental Book: A highlighted and tabbed practical electrical study reference covering formulas, Ohm's law, conductor information, voltage drop, grounding, motors, transformers, calculations, conversions, and commonly used field information. This reference is included for preparation but is not approved for use inside the current PSI examination center.

Exam Room Approved Books

• National Electrical Code Handbook, 2023
  The NEC Handbook included with this rental package is approved for use during the current Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems examination. PSI permits candidates to use either the 2023 NEC or the 2023 NEC Handbook.

Ugly's Electrical References is a study-only resource and is not approved for use inside the current examination center.

Test Information and Study Materials

General Knowledge accounts for 10% of the examination. Candidates should review electrical terminology, voltage, current, resistance, power, basic electrical theory, equipment ratings, and practical electrical calculations.

Ugly's Electrical References can be useful during this stage of preparation. Use it to reinforce electrical formulas, voltage drop, conductor information, and motor-related data, then practice working similar problems without the book because it cannot be used during the actual examination.

Feeders and Branch Circuits represent 10%. Review conductor sizing, circuit ratings, overcurrent protection, branch-circuit requirements, disconnecting means, and the relationship between equipment ratings and the circuit supplying HVAC or refrigeration equipment.

Grounding and Bonding accounts for 10%. Candidates should understand equipment grounding conductors, bonding requirements, grounding paths, equipment connections, and how grounding and bonding contribute to safe operation of HVAC and refrigeration equipment.

Raceways and Enclosures represent 14%. Review raceway types, boxes, fittings, enclosures, flexible wiring methods, wet and damp locations, physical protection, outdoor installations, and requirements that may apply to equipment installed on rooftops, exterior walls, or mechanical spaces.

HVAC equipment often requires wiring methods suitable for movement, vibration, moisture, and weather exposure. Candidates should be comfortable recognizing when flexible connections, weather-resistant equipment, or specific enclosure requirements apply.

Conductors account for 18% of the exam. Study conductor ampacity, insulation types, temperature limitations, conductor identification, sizing rules, adjustment and correction concepts, equipment grounding conductors, and the relationship between conductor size and equipment ratings.

Air-conditioning and refrigeration equipment may include nameplate information such as minimum circuit ampacity and maximum overcurrent protection. Candidates should understand how equipment-specific NEC provisions interact with general conductor and branch-circuit rules.

Motors and Controls represent 30%, making this the most heavily tested area. Candidates should devote significant preparation time to motors, compressors, controllers, disconnects, conductor sizing, motor overload protection, short-circuit and ground-fault protection, and control circuits.

It is important to distinguish among motor conductor requirements, overload protection, branch-circuit short-circuit and ground-fault protection, controllers, and disconnecting means. These requirements perform different functions and can use different sizing rules.

Study the NEC provisions that specifically address air-conditioning and refrigerating equipment, including requirements for hermetic refrigerant motor-compressors and associated equipment. Candidates should practice identifying when an equipment-specific article governs instead of relying only on general motor rules.

Special Occupancies account for 8%. Review NEC provisions for installations where the location or occupancy adds requirements beyond ordinary electrical work. Understanding environmental conditions and specialized installation requirements can be important when HVAC or refrigeration systems serve these locations.

A productive study strategy is to combine the course materials with repeated NEC navigation. Use the highlighted and tabbed Handbook to locate subjects such as air-conditioning equipment, motors, conductors, grounding, branch circuits, flexible raceways, disconnects, and overcurrent protection.

The scored examination provides 120 minutes for 50 questions, giving candidates an average of approximately 2.4 minutes per scored question. Developing efficient code-navigation habits can save valuable time on questions that require calculations or several NEC references.

Create practical study scenarios involving an existing condensing unit, refrigeration compressor, air handler, or similar equipment. Identify the supply circuit, conductor requirements, disconnect, grounding method, motor controls, and applicable code provisions. Scenario-based study can help connect the NEC language with the limited work covered by the endorsement.

The package includes 6 months of course access, providing a structured period for combining course study with the highlighted and tabbed rental books. Candidates can organize preparation around the published PSI percentages and dedicate additional time to Motors and Controls, Conductors, and Raceways and Enclosures.

Please allow up to 15 business days for book & course rental package orders.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems candidates through organized study guidance, trade-focused electrical review, practice-oriented preparation, reference navigation, and electrical calculation practice.

The highlighted and tabbed National Electrical Code Handbook, 2023 gives candidates an organized code reference to use throughout preparation and, under current PSI rules, during the open-book examination.

The included Ugly's Electrical References supports study involving formulas, conductor information, motors, voltage drop, grounding, transformers, and other practical electrical calculations.

The package also includes 6 months of course access, giving candidates a defined study period to work through exam topics while using the rental books alongside course preparation.

1 Exam Prep encourages candidates to organize study according to the published examination outline. Motors and Controls deserve particular attention because they represent 30% of the current exam, followed by Conductors at 18% and Raceways and Enclosures at 14%.

The goal is to strengthen electrical knowledge, improve NEC navigation, reinforce motor and equipment concepts, improve calculation accuracy, and provide a more organized preparation structure for the Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems examination.

How many questions are on the Iowa Disconnecting and Reconnecting Air Conditioning and Refrigeration Systems exam?

The current examination contains 50 scored questions plus 5 non-scored questions.

How much time is allowed?

Candidates receive 120 minutes for the scored portion and an additional 15 minutes for the non-scored questions.

What score is required to pass?

The current passing requirement is 70%.

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

Yes. The examination is an open book test using an approved 2023 NEC reference.

Can I use the 2023 NEC Handbook during the examination?

Yes. PSI currently permits either the 2023 National Electrical Code or the 2023 National Electrical Code Handbook.

Can Ugly's Electrical References be taken into the exam?

No. Ugly's Electrical References is not permitted inside the current PSI examination center. It is included as a highlighted and tabbed rental study resource.

Are both rental books highlighted and tabbed?

Yes. Both rental books included with this package are supplied highlighted and tabbed. Only approved reference material may be used in the examination center.

How long is the course access?

The package includes 6 months of course access.

What is the price of the Iowa Disconnecting & Reconnecting Air Conditioning Refrigeration Systems Contractor Books & Courses Rental Package?

The package price is $890 plus a refundable deposit of $200, for a total initial payment of $1,090.

Is the $200 deposit refundable?

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

What is the largest section of the exam?

Motors and Controls is the largest examination category at 30%.

Can I qualify through experience instead of taking the examination?

Yes. Iowa currently allows the endorsement to be issued to an applicant who passes the approved examination or completes two years of documented experience in disconnecting and reconnecting existing air-conditioning and refrigeration systems.

Do I need Iowa approval before scheduling the examination?

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

Which NEC edition is used on the current exam?

The current examination is based on the 2023 National Electrical Code.

How long should I allow for the rental package order?

Please allow up to 15 business days for book & course rental package orders.

Why choose the Iowa Disconnecting & Reconnecting Air Conditioning Refrigeration Systems Contractor Books & Courses Rental Package?

The package combines highlighted and tabbed rental references with 6 months of course access, providing an organized approach to NEC navigation, motor and control review, conductor sizing, grounding and bonding, raceways, electrical calculations, and preparation across the current Iowa specialty examination outline.