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EN

Explanation of Symbols and Safety Instructions 

Self-Contained Air Conditioning System

2  General Information

 

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The images used in this document are for reference 
purposes only. Components and component 
locations may vary according to specific product 
models. Measurements may vary ±0.38 in. (10 
mm).

Read these instructions completely and then plan the 
connections that must be made to the air conditioning 
unit (including ducting, condensate drain line, seawater 
inlet and outlet hoses, electrical power connections, 
location of the control, and seawater pump placement), 
to assure easy access for routing and future servicing.

See Figure 1 for an overview of the components in a 
typical self-contained air conditioning system installation.

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j

g

f

d

s

a

o

i

u

y

t

r

e

w

q

Component Identification

q

 Supply Air Grille and Transition Box

o

 Seacock Shut-Off Valve

w

 Digital Display

a

 Seawater Strainer

e

 Electric Box

s

 Pump

r

 Optional Remote Air Sensor Cable

d

 Condensate Drain

t

 Seawater Outlet Hose

f

 Mounting Bracket

y

 Overboard Discharge

g

 Air Conditioning Unit

u

 Seawater Inlet Hose

h

 Return Air Grille and Filter

i

 Seawater Scoop Thru-Hull Inlet

j

 Insulated Flexible Ducting

Summary of Contents for DCG

Page 1: ...ERS 339708 Form No L 4111 11 19 2019 Dometic Corporation WARNING Cancer and Reproductive Harm www P65Warnings ca gov DCG DCMG DCU DLM DLU DMT DTG DTU ECD MCS EN Self Contained Air Conditioning System Installation Manual 2 ...

Page 2: ...nstructions to help you eliminate or reduce the risk of accidents and injuries 1 1 Recognize Safety Information This is the safety alert symbol It is used to alert you to potential physical injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death 1 2 Understand Signal Words A signal word will identify safety messages and property damage messages and also wi...

Page 3: ...rvision This appliance should not be accessible to the general public Failure to follow these precautions could result in death or serious injury WARNING EXPLOSION HAZARD Do not install the air conditioning unit in a location containing gasoline engines tanks LPG CPG cylinders regulators valves or fuel line fittings Unless labeled otherwise self contained units do not meet federal requirements for...

Page 4: ...hoses electrical power connections location of the control and seawater pump placement to assure easy access for routing and future servicing See Figure 1 for an overview of the components in a typical self contained air conditioning system installation h j g f d s a o i u y t r e w q 1 Component Identification qSupply Air Grille and Transition Box oSeacock Shut Off Valve wDigital Display aSeawate...

Page 5: ...ameter in mm 3 0 76 4 0 102 5 0 127 6 0 152 6 0 152 7 0 178 7 0 178 8 0 203 Minimum Duct Area sq in sq cm 6 8 44 12 6 81 19 6 126 28 3 183 28 3 183 38 5 248 38 5 248 50 3 325 Minimum Return Air Grille sq in sq cm 64 0 413 64 0 413 80 0 516 100 0 645 130 0 839 200 0 1290 200 0 1290 240 0 1548 Minimum Supply Air Grille sq in sq cm 12 0 77 32 0 206 48 0 310 60 0 387 70 0 452 80 0 516 100 0 165 140 0 ...

Page 6: ...ning unit for installation 5 1 Determining the Installation Location 4 0 in 102 mm 3 0 in 76 mm 2 Placement Relating to Airflow qReturn Air Grille wBulkhead Allow for 3 0 in 76 mm minimum clearance in front of the evaporator coils and 4 0 in 102 mm minimum clearance in front of the return air grille 5 2 Rotating the Blower If needed rotate the blower to the direction that allows the most direct ai...

Page 7: ...ne particles from the cabin air and keep the evaporator coil clean Place one air filter either on the air conditioning unit or in the return air grille for each air conditioner unit Refer to General Information on page 4 for air filter placement 5 4 Placing the Grilles and Transition Boxes Install the supply air grille as high as possible in a location that will provide uniform air distribution th...

Page 8: ...tting 1 2 in HB x 12 MPT rDrain Pan wSolid Washer tLocking Nut eLiquid Seal Washer 1 Using the hose barb knock out a slug from an aft facing drain hole by applying one quick strike with a rubber mallet Discard the slug knockout 2 Install the hose barb For Turbo systems screw the hose barb into the threaded drain hole and tighten securely For all other systems thread the hose barb through a solid w...

Page 9: ...lation Insulate ducting when it is located in high heat areas Ensure that ducting is properly protected against damage when routed through open areas Do not route ducting through an engine room or any area where it may be exposed to dangerous vapors or exhaust fumes If a transition box is used the total area of supply air ducts going out of the box should be at least equal to the total area of the...

Page 10: ...ull flow seacock on the seawater scoop thru hull inlet 3 Install a seawater strainer below the level of the pump with access to the filter 4 Mount the pump above the strainer and at least one foot below the waterline 5 Connect the seacock and strainer with an uphill run of reinforced marine grade hose 6 Connect the discharge from the pump uphill to the bottom inlet of the air conditioning unit s c...

Page 11: ...oat Within the boat itself ensure that the AC ground bus is connected to the DC ground bus at exactly one place All pumps metallic valves and fittings in the seawater circuit that are isolated from the air conditioning unit by PVC or rubber hoses must be individually bonded to the boat s bonding system 7 Disposal M M Place the packaging material in the appropriate recycling waste bins whenever pos...

Page 12: ...com dealer YOUR LOCAL SUPPORT dometic com contact YOUR LOCAL SALES OFFICE dometic com sales offices A complete list of Dometic companies which comprise the Dometic Group can be found in the public filings of DOMETIC GROUP AB Hemvärnsgatan 15 SE 17154 Solna Sweden ...

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