Mars Air Systems L-2254 Introduction, Clean Air Act Amendments of 1990 Title VI C-1, How It Works

INTRODUCTION

Congratulations on the purchase of your Marine Air Systems’ Vector Compact® air conditioner. No matter which of the following features was the reason for your purchase of this air conditioner, we are sure it will meet your needs and will give you many years of efficient and trouble free use. The Vector Compact self-contained direct expansion air conditioners are designed for marine applications incorporating the following features:

•Patented compact design with the condenser coil in the evaporator shroud

•High efficiency rotary compressor or scroll (24K) compressors

•Cupronickel condenser coil

•Enhanced fin designed evaporator coil

•2" deep drain pan with multiple condensate drain locations

•Anti-vibration base pad

•Pre-charged and pre-wired systems for easy connections

•Rotatable blower assembly

•Charge Guard® ensures environmental protection and system integrity

This manual is intended to provide the information necessary to ensure proper installation, operation, and maintenance of the unit. The figures that are referenced throughout this manual can be found immediately after the warranty section. Improper installation or misunder- stood operating procedures can result in unsatisfactory performance and/or premature failure of these units, so before proceeding please read this manual completely.

The Vector Compact units are covered under the existing Dometic Environmental Corporation (Dometic) warranty policy contained in this manual. In the interest of product improvement, Dometic’s specifications and design are subject to change without prior notice.

Clean Air Act Amendments of 1990 [Title VI - Section 608(C-1)]

“Effective July 1, 1992, it shall be unlawful for any person, in the course of maintaining, servicing, repairing, or disposing of an appliance or industrial process refrigeration, to knowingly vent or otherwise knowingly release or dispose of any Class I* or Class II** sub- stance used as a refrigerant in such appliance (or industrial process refrigeration) in a manner which permits such substance to enter the environment. De minimis releases associated with good faith attempts to

recapture and recycle or safely dispose of any such substances shall not be subject to the prohibition set forth in the proceeding sentence.”

*Class I substances include CFC-12

**Class II substances include HCFC-22

Marine Air Systems

Marine Air Systems (MAS) is a product of Dometic Environmental Corporation. Dometic is a recognized leader in the design and manufacture of high-perfor- mance comfort control systems, refrigeration products and battery charging products for demanding environ- ments, including commercial and recreational marine craft, vehicles and other applications. We offer an unparalleled scope of products, dealer networks, applica- tions support, engineering resources and production capabilities throughout the world. Our team has many years of experience in the design, manufacture, applica- tion and support of our products. Our practical experi- ence and design capability allows our application engineers and sales representatives to offer optimum solutions for your environmental control requirements. Product lines also include well known Cruisair, Grunert, and Sentry.

How It Works

Your self-contained air conditioner consists of four main components and a refrigerant gas circulating through the system. The BLOWER draws warm cabin air across the fins on the EVAPORATOR where the heat from the air is transferred to the refrigerant in the evaporator coil. As the refrigerant evaporates from a liquid into a gas it absorbs the heat from the cabin air. The COMPRESSOR then compresses the refrigerant gas and pumps it through the outer tube in the CONDENSER COIL. The seawater pump circulates cool seawater through the inner tube in the condenser coil, this cools the refriger- ant and condenses it into a liquid. The heat from the refrigerant is exchanged to the seawater and discharged overboard. The liquid refrigerant is then passed through the EVAPORATOR COIL and the cycle repeats. Remov- ing heat from the cabin air lowers its temperature. The cooled air is blown through the ducting and out the supply air grille(s). For reverse cycle heating, the refriger- ant flows in the opposite direction through the reversing valve. Heat is transferred from the seawater in the condenser coil to the refrigerant and then to the air blowing through the evaporator into the cabin. Seawater temperature will directly affect the a/c unit’s efficiency. This a/c unit can effectively cool your boat in water temperatures up to 90°F and heat in water temperatures as low as 40°F. See Figure 1.

L-2254 Introduction 4 ❖ English