{"title":"Connecticut Limited Heating Cooling Journeyperson (D-4)","description":"","products":[{"product_id":"connecticut-limited-heating-cooling-journeyperson-d-4-exam-book-package","title":"Connecticut Limited Heating Cooling Journeyperson (D-4) Exam Book Package","description":"\u003csection data-turn=\"user\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-7\" data-turn-id=\"108ff30a-cd99-42b7-b42d-4c1905e5a7c4\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--header-height)\"\u003e\u003c\/section\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-8\" data-turn-id=\"request-WEB:bbb3319e-9a75-4904-8110-10eac4e358e3-3\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"1a1e03a8-27b6-473a-9b6c-332f46119440\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003csection data-turn=\"user\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-15\" data-turn-id=\"74bbed85-08ea-48cf-a5bc-8e5814c75734\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--header-height)\"\u003e\u003c\/section\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-16\" data-turn-id=\"request-WEB:bbb3319e-9a75-4904-8110-10eac4e358e3-7\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"6090697a-033c-423f-9ac3-f3ff85b678ac\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003csection data-turn=\"user\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-17\" data-turn-id=\"3f9fdcf6-0f7f-4a17-922b-cb2121722f5e\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--header-height)\"\u003e\u003c\/section\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-18\" data-turn-id=\"request-WEB:bbb3319e-9a75-4904-8110-10eac4e358e3-8\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"fb58faad-d5c2-4859-a88a-e4aa920bc723\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-20\" data-turn-id=\"request-WEB:bbb3319e-9a75-4904-8110-10eac4e358e3-9\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"13499068-7ce5-4a95-a5a9-1de1b87bc054\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-28\" data-turn-id=\"request-WEB:bbb3319e-9a75-4904-8110-10eac4e358e3-13\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"b1cf71bf-f8f2-4041-b423-2706b63e97d9\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-30\" data-turn-id=\"request-WEB:bbb3319e-9a75-4904-8110-10eac4e358e3-14\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-message-id=\"3974553f-613c-4cde-82d8-8dda9be378bf\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-6a05fc99-1d94-8323-bd70-58cf1aae2c36-17\" class=\"\"\u003e\n\u003cdiv class=\"relative w-full overflow-visible\"\u003e\n\u003csection data-turn=\"assistant\" data-scroll-anchor=\"false\" data-testid=\"conversation-turn-258\" data-turn-id-container=\"request-6a05fc99-1d94-8323-bd70-58cf1aae2c36-17\" data-turn-id=\"request-6a05fc99-1d94-8323-bd70-58cf1aae2c36-17\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5\" dir=\"auto\" data-turn-start-message=\"true\" data-message-id=\"72974795-05b4-40dc-b6fa-6cac6de7e421\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp\u003eThe Connecticut Limited Heating Cooling Journeyperson (D-4) Exam Book Package from 1 Exam Prep is a complete exam preparation solution designed for individuals preparing to take the Connecticut Limited Heating Cooling Journeyperson (D-4) licensing exam.\u003c\/p\u003e\n\u003cp\u003eThis comprehensive package includes the approved reference materials commonly used on open-book licensing exams and focuses on essential topics such as HVAC system installation, refrigeration principles, heating and cooling equipment operation, OSHA safety regulations, ventilation standards, troubleshooting procedures, and mechanical code compliance.\u003c\/p\u003e\n\u003cp\u003eDesigned to improve both code navigation skills and practical field knowledge, the 1 Exam Prep Connecticut Limited Heating Cooling Journeyperson (D-4) Exam Book Package helps HVAC technicians strengthen their understanding of residential and commercial heating and cooling systems while building confidence for exam day and real-world service work.\u003c\/p\u003e\n\u003ch1\u003e📚 What’s Included\u003c\/h1\u003e\n\u003ch2\u003e✅ Books Allowed Into the Exam\u003c\/h2\u003e\n\u003ch3\u003e✅ International Mechanical Code (IMC), 2021\u003c\/h3\u003e\n\u003cp\u003eComprehensive mechanical code reference covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC system installation requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVentilation and exhaust systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCombustion air standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical equipment installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration system requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDuct system regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChimneys, vents, and flues\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 Essential reference for understanding HVAC and mechanical code compliance.\u003c\/p\u003e\n\u003ch3\u003e✅ Code of Federal Regulations – 29 CFR Part 1926 (OSHA)\u003c\/h3\u003e\n\u003cp\u003eFederal construction safety regulations covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eConstruction site safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC installation safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePersonal protective equipment (PPE)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLadder and scaffolding safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHazard communication requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical safety awareness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFire prevention standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWorkplace safety compliance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 Critical safety reference for maintaining OSHA compliance on HVAC job sites.\u003c\/p\u003e\n\u003ch3\u003e✅ Modern Refrigeration and Air Conditioning, 22nd Edition\u003c\/h3\u003e\n\u003cp\u003eComprehensive HVAC and refrigeration training reference covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration cycle fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir conditioning system operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating system fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeat pump systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigerant handling procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical controls and troubleshooting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC system diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePreventive maintenance procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 Essential resource for mastering heating, cooling, and refrigeration concepts, troubleshooting, and service procedures.\u003c\/p\u003e\n\u003ch1\u003e🔧 What This Package Helps You Learn\u003c\/h1\u003e\n\u003ch2\u003eHeating \u0026amp; Cooling System Fundamentals\u003c\/h2\u003e\n\u003cp\u003eDevelop a strong understanding of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAir conditioning system operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration cycle performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating equipment fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeat pump applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC troubleshooting methods\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVentilation system requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHVAC Installation \u0026amp; Service Procedures\u003c\/h2\u003e\n\u003cp\u003eLearn essential field concepts including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC equipment installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration system servicing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical system maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical control troubleshooting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSystem performance testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePreventive maintenance procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMechanical Code Compliance\u003c\/h2\u003e\n\u003cp\u003eStrengthen your understanding of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC code requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVentilation standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipment installation regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCode-compliant system design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOSHA Safety \u0026amp; Workplace Standards\u003c\/h2\u003e\n\u003cp\u003eMaster critical safety concepts including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eOSHA construction safety regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC job site safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical safety awareness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePPE requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHazard prevention procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFire prevention standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e🎯 Who This Package Is For\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIndividuals applying for the Connecticut Limited Heating Cooling Journeyperson (D-4) License\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir conditioning service technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating system specialists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical system professionals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResidential and commercial HVAC service technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eApprentices preparing for Connecticut licensing exams\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e🚀 Why Choose 1 Exam Prep\u003c\/h1\u003e\n\u003cp\u003eAt 1 Exam Prep, we specialize in helping contractors and skilled trades professionals pass their licensing exams and build successful careers. Our exam prep packages are designed around:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eActual Connecticut licensing requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReal-world HVAC and refrigeration applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCode-based exam preparation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePractical field knowledge\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProven trade-focused study strategies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe understand that passing an open-book journeyperson exam requires more than simply owning the books—you must know how to navigate them efficiently and apply the information correctly under timed testing conditions.\u003c\/p\u003e\n\u003cp\u003eThat’s why our packages are specifically designed to help improve both speed and understanding.\u003c\/p\u003e\n\u003ch1\u003e💡 Important Exam Insight\u003c\/h1\u003e\n\u003cp\u003eThe Connecticut Limited Heating Cooling Journeyperson (D-4) Exam is an open-book exam, meaning approved reference materials are allowed inside the testing center.\u003c\/p\u003e\n\u003cp\u003eCandidates who become familiar with navigating the IMC, OSHA regulations, refrigeration references, and HVAC troubleshooting procedures are typically much more successful during the exam and more confident when performing real-world heating and cooling installation, maintenance, and service work afterward.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":45859801989177,"sku":null,"price":495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/CT-LimitedHeating_CoolingJourneypersonD-BOOKS.jpg?v=1779638379"},{"product_id":"connecticut-limited-heating-cooling-journeyperson-d-4-highlighted-tabbed-book-package","title":"Connecticut Limited Heating Cooling Journeyperson (D-4) Highlighted \u0026 Tabbed Book Package","description":"\u003cp\u003ePrepare with confidence and pass your \u003cstrong\u003eConnecticut Limited Heating Cooling Journeyperson (D-4) Exam\u003c\/strong\u003e with our expertly organized \u003cstrong\u003eHighlighted \u0026amp; Tabbed Book Package\u003c\/strong\u003e—designed specifically for Connecticut’s open-book HVAC licensing exam format. This complete package includes the essential references commonly used for the exam, professionally highlighted and pre-tabbed to help you quickly locate critical information, improve testing efficiency, and maximize your performance on exam day.\u003c\/p\u003e\n\u003cp\u003eWhether you work in residential or commercial heating and cooling systems, HVAC service, air conditioning repair, or mechanical code compliance, this package provides the technical references and practical industry knowledge needed to succeed both on the exam and in the field.\u003c\/p\u003e\n\u003ch2\u003e📚 What’s Included\u003c\/h2\u003e\n\u003ch3\u003e✅ All Books Included Are Allowed in the Exam (Highlighted \u0026amp; Tabbed)\u003c\/h3\u003e\n\u003cp\u003eEvery reference in this package is professionally highlighted and pre-tabbed for fast navigation during the exam.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInternational Mechanical Code (IMC), 2021 Edition\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eComprehensive mechanical code reference covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC system installation requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVentilation standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExhaust and duct systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCombustion air requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical equipment installation standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling system regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResidential and commercial mechanical code compliance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCode of Federal Regulations – 29 CFR Part 1926 (OSHA)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eEssential construction safety standards covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC jobsite safety requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePersonal protective equipment (PPE)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLadder and scaffold safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical hazard protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConstruction site safety practices\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOSHA compliance standards for HVAC technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eComprehensive HVAC\/R technical reference covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling system fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration cycle operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir conditioning system diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC troubleshooting procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical controls and components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigerant handling and safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial and residential HVAC applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e💡 Professionally Highlighted \u0026amp; Tabbed for Exam Success\u003c\/h2\u003e\n\u003cp\u003eAll books in this package are professionally highlighted and pre-tabbed to help you quickly locate important code sections, formulas, tables, and technical references during the exam.\u003c\/p\u003e\n\u003cp\u003eOur tabbing system is specifically designed to improve navigation speed and reduce time spent searching through materials during testing.\u003c\/p\u003e\n\u003ch2\u003e🚀 Why Choose This Package?\u003c\/h2\u003e\n\u003ch3\u003e🔍 Built for the Open-Book Exam\u003c\/h3\u003e\n\u003cp\u003eConnecticut journeyperson licensing exams are designed to test your ability to quickly locate and apply HVAC and mechanical code information.\u003c\/p\u003e\n\u003cp\u003eOur professionally designed highlighting and tabbing system helps you:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eNavigate HVAC and mechanical codes faster\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLocate technical references quickly\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eImprove speed and accuracy during testing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduce wasted time searching through books\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStay organized and focused throughout the exam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🧠 Learn the Material While Preparing\u003c\/h3\u003e\n\u003cp\u003eThese references help build real-world heating and cooling knowledge by covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eResidential and commercial HVAC systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and air conditioning system operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC troubleshooting and diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical code compliance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOSHA workplace safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e❄️ Designed for Connecticut Heating \u0026amp; Cooling Journeypersons\u003c\/h2\u003e\n\u003cp\u003eThis package supports the scope of work covered under the Connecticut Limited Heating Cooling Journeyperson (D-4) License, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC system installation and service\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling equipment maintenance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir conditioning system repair\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical ventilation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResidential and commercial HVAC applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC troubleshooting and diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical code compliance and inspections\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e💼 Who This Is For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIndividuals applying for the Connecticut D-4 Journeyperson License\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC installation and service technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling professionals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical apprentices and trainees\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResidential and commercial HVAC specialists\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndividuals preparing for the Connecticut journeyperson licensing exam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTechnicians looking for a faster and more organized exam preparation system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🎯 Pass Faster. Work Smarter.\u003c\/h2\u003e\n\u003cp\u003ePassing the Connecticut Limited Heating Cooling Journeyperson (D-4) Exam starts with having the right references—and knowing how to use them efficiently.\u003c\/p\u003e\n\u003cp\u003eWith professionally highlighted and tabbed books, you’ll spend less time searching and more time answering questions confidently.\u003c\/p\u003e\n\u003cp\u003eGet your \u003cstrong\u003eConnecticut Limited Heating Cooling Journeyperson (D-4) Highlighted \u0026amp; Tabbed Book Package\u003c\/strong\u003e today and take the next step toward becoming a licensed heating and cooling professional in Connecticut.\u003c\/p\u003e","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":45862916784185,"sku":null,"price":795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/CT-LimitedHeating_CoolingJourneypersonD-4-HT.jpg?v=1779460106"},{"product_id":"connecticut-limited-heating-cooling-journeyperson-d-4-ultimate-exam-prep-rental","title":"Connecticut Limited Heating Cooling Journeyperson (D-4) Ultimate Exam Prep Rental","description":"\u003cp\u003eThe Connecticut Limited Heating Cooling Journeyperson (D-4) Ultimate Exam Prep Rental Package is a complete licensing preparation solution designed to help you prepare for and pass the Connecticut D-4 journeyperson exam while confidently navigating the Connecticut licensing process.\u003c\/p\u003e\n\u003cp\u003eBuilt specifically for Connecticut’s open-book exam format, this package combines essential HVAC, mechanical code, refrigeration, and OSHA safety references into one streamlined exam prep system—giving you the tools and resources needed to study efficiently and succeed on exam day.\u003c\/p\u003e\n\u003ch1\u003e📦 Connecticut Limited Heating Cooling Journeyperson (D-4) Ultimate Exam Prep Rental Package\u003c\/h1\u003e\n\u003ch3\u003ePackage Price: $1,265\u003c\/h3\u003e\n\u003ch3\u003eRefundable Deposit: $250\u003c\/h3\u003e\n\u003ch3\u003eTotal Due Today: $1,515\u003c\/h3\u003e\n\u003cp\u003eThe $250 deposit is fully refundable when books are returned in similar condition within the rental period.\u003c\/p\u003e\n\u003ch1\u003e✅ What’s Included\u003c\/h1\u003e\n\u003ch2\u003e📚 Professionally Organized Book Set (Rental)\u003c\/h2\u003e\n\u003cp\u003eComplete Connecticut D-4 journeyperson reference library professionally organized for efficient open-book exam navigation.\u003c\/p\u003e\n\u003cp\u003eIncludes the core references commonly used for the Connecticut Limited Heating Cooling Journeyperson (D-4) exam.\u003c\/p\u003e\n\u003ch2\u003e🎓 Online Exam Prep Support\u003c\/h2\u003e\n\u003cp\u003eDesigned to help you master:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling system installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC troubleshooting fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical code requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOSHA construction safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOpen-book exam navigation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTime management and proven test-taking techniques\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📝 Licensing Guidance\u003c\/h2\u003e\n\u003cp\u003eGet step-by-step guidance through the Connecticut licensing process, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eUnderstanding Connecticut licensing requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eApplication preparation guidance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExam preparation support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLicensing documentation assistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eConnecticut licensing process guidance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e⏳ Flexible Rental Access\u003c\/h2\u003e\n\u003cp\u003eEnjoy flexible rental access so you can prepare at your own pace while balancing work and scheduling demands.\u003c\/p\u003e\n\u003ch2\u003e⚠️ Special Order Notice\u003c\/h2\u003e\n\u003cp\u003ePlease allow approximately 15 business days for processing and preparation before shipping.\u003c\/p\u003e\n\u003ch1\u003e🔧 Connecticut D-4 Trade References Included\u003c\/h1\u003e\n\u003ch2\u003e✅ International Mechanical Code, 2021\u003c\/h2\u003e\n\u003cp\u003eComprehensive mechanical code reference covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC installation requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVentilation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExhaust systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical inspection requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling system standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEquipment installation requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 Essential code reference for the Connecticut D-4 exam.\u003c\/p\u003e\n\u003ch2\u003e✅ Code of Federal Regulations – 29 CFR Part 1926 (OSHA)\u003c\/h2\u003e\n\u003cp\u003eCritical OSHA construction safety standards covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eConstruction jobsite safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePersonal protective equipment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLadder and scaffold safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHazard communication procedures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC and mechanical safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 Essential safety reference for contractor licensing preparation.\u003c\/p\u003e\n\u003ch2\u003e✅ Modern Refrigeration and Air Conditioning, 22nd Edition\u003c\/h2\u003e\n\u003cp\u003eComprehensive HVAC and refrigeration reference covering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration cycle principles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAir conditioning systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigerant handling\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical troubleshooting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC controls and diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 One of the industry’s leading HVAC training and reference manuals.\u003c\/p\u003e\n\u003ch1\u003e🎓 Exam Prep Topics Covered\u003c\/h1\u003e\n\u003cp\u003eThe Connecticut Limited Heating Cooling Journeyperson (D-4) Exam Prep program helps prepare you for key exam areas including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling system installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC troubleshooting fundamentals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical code compliance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOSHA safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC controls and diagnostics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical safety standards\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOpen-book reference navigation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePractice-based exam strategies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e🚀 Why This Package Works\u003c\/h1\u003e\n\u003cp\u003eThis Ultimate Package is designed to give you a major advantage by combining:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eComplete Connecticut D-4 journeyperson reference library\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProfessionally organized open-book exam materials\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC and refrigeration references\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical code preparation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOSHA safety preparation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eExam navigation strategies\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLicensing process guidance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFlexible rental access\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAffordable rental model with refundable deposit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e🎯 Who This Is For\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eIndividuals pursuing the Connecticut D-4 Journeyperson License\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating and cooling installers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefrigeration technicians\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical service professionals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVAC apprentices advancing their careers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAnyone seeking a complete Connecticut HVAC journeyperson exam prep solution\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003e🚀 Get Licensed Faster. Advance Your Connecticut HVAC Career with Confidence.\u003c\/h1\u003e\n\u003cp\u003eWith the right books, the right preparation, and the right licensing support, passing the Connecticut Limited Heating Cooling Journeyperson (D-4) exam is absolutely achievable.\u003c\/p\u003e\n\u003cp\u003eThis Ultimate Package gives you the complete roadmap—from exam preparation to licensing guidance—so you can move through the Connecticut licensing process with confidence and take the next step in your HVAC career faster.\u003c\/p\u003e","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":45866130800697,"sku":null,"price":1515.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/CT-LimitedHeating_CoolingJourneyperso-ULTIMATE.jpg?v=1779805773"},{"product_id":"connecticut-limited-heating-cooling-journeyperson-d-4-books-courses-rental-package","title":"Connecticut Limited Heating Cooling Journeyperson (D-4) - Books \u0026 Courses Rental Package","description":"\u003cp\u003ePrepare with confidence and pass your Connecticut Limited Heating Cooling Journeyperson (D-4) Exam with our complete Books \u0026amp; Courses Rental Package—designed to provide the essential references, study materials, and exam preparation tools you need to succeed without the high upfront cost of purchasing every required book individually.\u003c\/p\u003e\n\u003cp\u003eThis comprehensive package combines HVAC mechanical code references, refrigeration and air conditioning fundamentals, OSHA safety regulations, and practical HVAC exam preparation into one complete exam-ready solution.\u003c\/p\u003e\n\u003cp\u003eWhether you specialize in residential heating and cooling systems, HVAC installation, air conditioning service, refrigeration maintenance, or commercial HVAC applications, this package is specifically designed to help you confidently prepare for the Connecticut D-4 licensing exam and navigate the open-book testing environment effectively.\u003c\/p\u003e\n\u003ch1\u003e💰 Pricing \u0026amp; Rental Details\u003c\/h1\u003e\n\u003cp\u003eRental Cost: $840\u003c\/p\u003e\n\u003cp\u003eRefundable Book Deposit: $250\u003c\/p\u003e\n\u003cp\u003eTotal Package Price: $1,090\u003c\/p\u003e\n\u003ch1\u003e📦 Rental Package Includes\u003c\/h1\u003e\n\u003cp\u003eProfessionally highlighted and tabbed books\u003c\/p\u003e\n\u003cp\u003eConnecticut Limited Heating Cooling Journeyperson (D-4) Online Exam Prep Course\u003c\/p\u003e\n\u003cp\u003e6-month book rental period\u003c\/p\u003e\n\u003cp\u003eFull online course access\u003c\/p\u003e\n\u003cp\u003eOpen-book exam navigation training\u003c\/p\u003e\n\u003cp\u003ePractice exams and test-taking strategies\u003c\/p\u003e\n\u003ch1\u003e⚠️ Special Order Notice\u003c\/h1\u003e\n\u003cp\u003eThis is a special order item. Please allow approximately 15 business days for your books to be professionally highlighted and tabbed before shipping.\u003c\/p\u003e\n\u003ch1\u003e📚 Books Included in This Rental Package\u003c\/h1\u003e\n\u003cp\u003eThis package includes the key references used for Connecticut Limited Heating Cooling Journeyperson (D-4) exam preparation and practical HVAC applications.\u003c\/p\u003e\n\u003ch1\u003e❄️ Core Code \u0026amp; Trade References\u003c\/h1\u003e\n\u003ch2\u003eInternational Mechanical Code (IMC), 2021\u003c\/h2\u003e\n\u003cp\u003ePrimary mechanical code reference covering:\u003c\/p\u003e\n\u003cp\u003eHVAC installation requirements\u003c\/p\u003e\n\u003cp\u003eMechanical ventilation systems\u003c\/p\u003e\n\u003cp\u003eHeating and cooling equipment regulations\u003c\/p\u003e\n\u003cp\u003eDuct system requirements\u003c\/p\u003e\n\u003cp\u003eCommercial and residential HVAC compliance\u003c\/p\u003e\n\u003cp\u003eMechanical safety standards\u003c\/p\u003e\n\u003ch2\u003eCode of Federal Regulations – 29 CFR Part 1926 (OSHA)\u003c\/h2\u003e\n\u003cp\u003eConstruction safety reference covering:\u003c\/p\u003e\n\u003cp\u003eJobsite safety standards\u003c\/p\u003e\n\u003cp\u003eOSHA compliance requirements\u003c\/p\u003e\n\u003cp\u003ePersonal protective equipment\u003c\/p\u003e\n\u003cp\u003eHazard communication\u003c\/p\u003e\n\u003cp\u003eFall protection\u003c\/p\u003e\n\u003cp\u003eMechanical construction safety procedures\u003c\/p\u003e\n\u003ch2\u003eModern Refrigeration and Air Conditioning, 22nd Edition\u003c\/h2\u003e\n\u003cp\u003eComprehensive HVACR reference covering:\u003c\/p\u003e\n\u003cp\u003eHeating and cooling system fundamentals\u003c\/p\u003e\n\u003cp\u003eAir conditioning systems\u003c\/p\u003e\n\u003cp\u003eRefrigeration cycle principles\u003c\/p\u003e\n\u003cp\u003eElectrical controls and components\u003c\/p\u003e\n\u003cp\u003eHVAC troubleshooting procedures\u003c\/p\u003e\n\u003cp\u003eInstallation and service methods\u003c\/p\u003e\n\u003cp\u003eResidential and commercial HVAC applications\u003c\/p\u003e\n\u003cp\u003eSystem diagnostics and maintenance\u003c\/p\u003e\n\u003ch1\u003e🎓 Online Exam Prep Course Included\u003c\/h1\u003e\n\u003ch2\u003e🌬️ Connecticut Limited Heating Cooling Journeyperson (D-4) Exam Prep Course\u003c\/h2\u003e\n\u003cp\u003eThis structured online training program is specifically designed around the Connecticut D-4 licensing exam and includes:\u003c\/p\u003e\n\u003cp\u003eMechanical code instruction\u003c\/p\u003e\n\u003cp\u003eHeating and cooling system fundamentals\u003c\/p\u003e\n\u003cp\u003eHVAC troubleshooting concepts\u003c\/p\u003e\n\u003cp\u003eRefrigeration and air conditioning review\u003c\/p\u003e\n\u003cp\u003eOSHA safety preparation\u003c\/p\u003e\n\u003cp\u003eOpen-book exam navigation techniques\u003c\/p\u003e\n\u003cp\u003ePractice questions and simulated exams\u003c\/p\u003e\n\u003cp\u003eProven test-taking strategies\u003c\/p\u003e\n\u003ch1\u003e📖 Open-Book Exam Navigation Training\u003c\/h1\u003e\n\u003cp\u003eLearn how to efficiently navigate your references during the exam.\u003c\/p\u003e\n\u003cp\u003eIncludes training on:\u003c\/p\u003e\n\u003cp\u003eProper book tabbing techniques\u003c\/p\u003e\n\u003cp\u003eHighlighting key code sections\u003c\/p\u003e\n\u003cp\u003eUsing indexes, charts, and tables effectively\u003c\/p\u003e\n\u003cp\u003eFast answer location strategies\u003c\/p\u003e\n\u003cp\u003eTime-saving exam methods used by successful HVAC professionals\u003c\/p\u003e\n\u003ch1\u003e📝 Simulated Practice Exams\u003c\/h1\u003e\n\u003cp\u003eTrain with realistic practice exams that simulate the actual testing environment.\u003c\/p\u003e\n\u003cp\u003eIncludes:\u003c\/p\u003e\n\u003cp\u003eTimed practice exams\u003c\/p\u003e\n\u003cp\u003eHeating and cooling system questions\u003c\/p\u003e\n\u003cp\u003eOpen-book navigation exercises\u003c\/p\u003e\n\u003cp\u003eDetailed answer explanations\u003c\/p\u003e\n\u003cp\u003eSpeed and confidence-building drills\u003c\/p\u003e\n\u003ch1\u003e🔧 What This Package Helps You Learn\u003c\/h1\u003e\n\u003cp\u003eDevelop confidence in:\u003c\/p\u003e\n\u003cp\u003eHeating and cooling system installation\u003c\/p\u003e\n\u003cp\u003eHVAC troubleshooting and repair\u003c\/p\u003e\n\u003cp\u003eMechanical code compliance\u003c\/p\u003e\n\u003cp\u003eAir conditioning and refrigeration systems\u003c\/p\u003e\n\u003cp\u003eOSHA safety requirements\u003c\/p\u003e\n\u003cp\u003eResidential and commercial HVAC applications\u003c\/p\u003e\n\u003cp\u003eOpen-book exam navigation\u003c\/p\u003e\n\u003cp\u003eHVAC service and maintenance procedures\u003c\/p\u003e\n\u003ch1\u003e🚀 Why This Package Works\u003c\/h1\u003e\n\u003cp\u003eCombines books, courses, highlighting, and tabbing into one complete solution\u003c\/p\u003e\n\u003cp\u003eRental format lowers upfront costs while providing access to all required references\u003c\/p\u003e\n\u003cp\u003eBuilt specifically for the Connecticut Limited Heating Cooling Journeyperson (D-4) exam\u003c\/p\u003e\n\u003cp\u003eIncludes realistic exam simulations and navigation training\u003c\/p\u003e\n\u003cp\u003eDesigned to help you pass on your first attempt\u003c\/p\u003e\n\u003ch1\u003e🎯 Who This Is For\u003c\/h1\u003e\n\u003cp\u003eIndividuals preparing for the Connecticut Limited Heating Cooling Journeyperson (D-4) License\u003c\/p\u003e\n\u003cp\u003eHVAC apprentices\u003c\/p\u003e\n\u003cp\u003eHeating and cooling technicians\u003c\/p\u003e\n\u003cp\u003eAir conditioning service professionals\u003c\/p\u003e\n\u003cp\u003eHVAC maintenance technicians\u003c\/p\u003e\n\u003cp\u003eIndividuals seeking a complete, guided Connecticut HVAC exam prep solution\u003c\/p\u003e\n\u003ch1\u003e🚀 Get Prepared. Get Licensed. Advance Your HVAC Career.\u003c\/h1\u003e\n\u003cp\u003ePassing the Connecticut Limited Heating Cooling Journeyperson (D-4) exam requires more than field experience—you need the right references, the right training, and the right strategy.\u003c\/p\u003e\n\u003cp\u003eThis complete rental package gives you everything you need to prepare confidently, navigate the open-book exam efficiently, and take the next step toward becoming a licensed Connecticut heating and cooling journeyperson.\u003c\/p\u003e","brand":"1 Exam Prep","offers":[{"title":"Default Title","offer_id":45877923872825,"sku":null,"price":1090.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1789\/0861\/files\/CT-LimitedHeating_CoolingJourneyperson-RENTAL_cd466aac-e732-444f-9812-a0402a9c61a3.jpg?v=1779638602"}],"url":"https:\/\/1examprep.com\/collections\/connecticut-limited-heating-cooling-journeyperson-d-4.oembed","provider":"1 Exam Prep","version":"1.0","type":"link"}