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INSTALLATION INSTRUCTIONS
RECORD THIS INFORMATION FOR FUTURE REFERENCE
BEFORE INSTALLING THE UNIT:
Model Number
Serial Number
Date Purchased
Place of Purchase
SELF-CONTAINED
AIR CONDITIONER & HEAT PUMP
FOR
RECREATIONAL VEHICLES
USA
SERVICE OFFICE
ROTARY COMPRESSOR
Dometic Corporation
2320 Industrial Parkway
SYSTEM MODELS
Elkhart, IN 46516
574-294-2511
Air Conditioners
CANADA
Dometic Corporation 39626.501 & 39626.506
46 Zatonski, Unit 3
Brantford, ON N3T 5L8
Heat Pumps
CANADA
519-720-9578
39726.5
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INSTALLATION INSTRUCTIONS TABLE OF CONTENTS: 1.0 SAFETY INSTRUCTIONS ........................................................................... PAGE 3 2.0 APPLICATION MANUAL ............................................................................. PAGE 4 2.1 AIR DISTRIBUTION ........................................................................... PAGE 4 2.2 HOW ROOM AIR IS RELATED TO OUTLET PERFORMANCE ..... PAGE 7 2.3 SPECIFICATION AND REQUIREMENTS ....................................
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INSTALLATION INSTRUCTIONS 1.0 SAFETY INSTRUCTIONS This manual has safety information and instruc- tions to help users eliminate or reduce the risk of accidents and injuries. RECOGNIZE SAFETY INFORMATION ! This is the safety-alert symbol. When you see this symbol in this manual, be alert to the potential for personal injury. Follow recommended precautions and safe op- erating instructions. UNDERSTAND, SIGNAL WORDS A signal word , WARNING OR CAUTION is used with the safety-alert symbol. They give
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INSTALLATION INSTRUCTIONS 2.0.0 APPLICATION MANUAL of the greatest heat loss and/or heat gain. The effects of the 2.1 AIR DISTRIBUTION gain or loss can then be offset by the supply air. It is 2.1.1 GENERAL INFORMATION important that the selection of the diffusers and grills for the The purpose of an air conditioning system is to provide supply and return systems receive careful attention to enable environmental conditions in a space to keep its occupants them to accomplish their purpose. comfo
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INSTALLATION INSTRUCTIONS 2.1.5 AIR FLOW AND FRICTION Item 1. This sharp-angled bend causes a large pressure Air flows in a duct system from a region of high pressure to loss. A simple way of visualizing such pressure loss is a region of lower pressure. The blower creates the pressure to imagine that these diagrams represent highways on differential which causes the air flow through the duct which you are driving a car. As you approach a bend you system. The point of highest pressure in the
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INSTALLATION INSTRUCTIONS EDDIES FAIR PREFERRED (Standard) ITEM 1 ITEM 4 Sharp Angle Long Radius Bend NOT ACCEPTABLE POOR Various Elbows Showing Radius Ratios EDDIES FIG. 2.3 ITEM 2 ITEM 5 Rounded Splitters, or turning vanes Outer installed in sharp angle Corner bend D R R RR = ITEM 6 W W ITEM 3 Splitters in rounded corner bend Rounded Radius Ratio (RR) Corners or RR = 1.5 FIG. 2.4 FIG. 2.7 Different ways of making a 90 degree bend. Some involve greater pressure losses than others. Rb LARGE DUCT
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INSTALLATION INSTRUCTIONS 4. Sudden contractions in air stream most effectively, the high velocity portions of the air stream 5. Sudden expansions in air stream have less tendency to enter the occupied zone of the space. 2.1.7 REGISTERS, DIFFUSERS, AND GRILLE SELEC- 2.2 HOW ROOM AIR MOTION IS RELATED TO TION OUTLET PERFORMANCE One of the most important considerations in designing a The room air near the supply air stream is entrained by the conditioning system is the selection of the registers
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INSTALLATION INSTRUCTIONS 2.3.1 COOLING REQUIREMENTS CAUTION When determining the cooling requirements of each vehicle, the following should be considered: It is the responsibility of the installer to en- sure the duct work will not collapse or bend A. The size of the vehicle will determine the number of during and after installation. Dometic Corpo- air conditioning units that are required, or the need ration will not be liable for any structural dam- to pre-wire for additional air condition
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INSTALLATION INSTRUCTIONS 2.5.0 MOUNTING IN COACH Condenser FIG. 2.12 The dual basement air conditioner and heat pump are Coil designed for under the floor installation. It is the vehicle 39626.501 manufacturer's responsibility to provide an installation space 39726.501 which will allow for cutouts and mounting of the unit without Top cutting vital frame structures. The frame and structural Discharge sections in the installation space will not cause restriction of 6.5" air movement required by
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INSTALLATION INSTRUCTIONS 2.6 WIRING DIAGRAM 39726.501 & 39726.506 EV EVAP AP.. BLOWER BLOWER MOTOR RED COMPRESSOR WHT R WHT COMP WHT WHT G-Y G-Y G-Y WHT STARTER BLK OL C BLK START CAP WHT BRN S DIP SWITCHES CIRCUIT RED ON BOARD K1 T1 BRN WHT BLK CIR.#1 COM 1 2 3 4 5 6 7 8 1 11 15 5 VA VAC C 60 60 Hz Hz 1O 1O P1 RED T4 RED USE USE COPPER COPPER CONDUCT CONDUCTORS ORS NO ONLY P2 HERM FREEZE NC T2 BLK CONTROL WHT C P3 P4 P5 ORN T3 FAN WHT AMB. RED FIELD FIELD WIRING WIRING MUST MUST SENSOR REV. RU
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INSTALLATION INSTRUCTIONS 2. 8 WIRING DIAGRAM 39626.501 & 39626.506 EV EVAP AP.. B BL LOWER OWER RED MOTOR COMPRESSOR WHT R WHT COMP WHT G-Y WHT G-Y STARTER OL BLK C BLK START CAP WHT BRN S DIP DIP SWIT SWITCHES CHES CIRCUIT CIRCUIT RED ON BOARD K1 T1 BRN BLK WHT CIR.#1 COM 1 2 3 4 5 6 7 8 115 115 V VA AC C 60 60 Hz Hz 1 1 PHA PHASE SE P1 RED RED T2 RED USE USE COPPER COPPER CONDUCT CONDUCTO ORS RS NO ONLY P2 FREEZE NC HERM T3 BLK RED WHT CONTROL C P3 P4 P5 ORN FAN WHT AMB. FIELD FIELD WIRING WI
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INSTALLATION INSTRUCTIONS 3.0.0 INSTALLATION INSTRUCTIONS 3.1 GENERAL INFORMATION 3.2.0 PROCEDURE 3.1.1 THIS UNIT IS DESIGNED FOR: 3.2.1 LOCATION A. Installation in a recreational vehicle at the time the This system is intended for installation in a recreational vehicle vehicle is manufactured. where the interior is essentially one undivided space. (See FIG. B. Heating operation in a MILD GEOGRAPHICAL 3.1) AREA where the heat loss is minimal. FIG. 3.1 C. Turning "OFF" the heat pump and switching
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INSTALLATION INSTRUCTIONS Where the return air must be provided through louvers The outside coil is a "draw-through" type. When the or mesh screen, the FREE AREA percentage of the face of the coil is positioned behind a louvered or other material used shall be taken into consideration when type of restrictive opening, the FREE AREA of the making this determination. An example of how to opening must be at least 648 square inches. determine FREE AREA is included in "3.2.2. Outside CAUTION Coil". B
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INSTALLATION INSTRUCTIONS RETURN SYSTEM FIG. 3.4 INSULATED DUCT Return to be 6 ft. minimun from floor. Minimum Maximum Use wall structure for delivery to basement area. 2 2 45 IN. 80 IN. Return grille must be filtered. (3 " depth Min.) Minimun return required per duct sizing for unit to perform within Engineer specifications. See Chart below. MINIMUM MAXIMUM 2 2 SIDE RETURN 135IN. 291 IN. ADDITIONAL REQUIREMENTS: REGISTER REQUIREMENTS Damper required in furnace. Vibration isola
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INSTALLATION INSTRUCTIONS B. Route a dedicated DC supply line (18-22 AWG copper 4. Avoid locations close to doors that lead outside, conductors) from the Converter or Battery to the windows or adjoining outside walls; unit's electrical box. Connect with wire nuts positive 5. Avoid locations close to supply registers and the (+) DC to the red wire; Negative (-) DC to the black air from them; wire. 6. Never locate CCC in a room that is warmer or C. Route thermostat wires from the furnace (if appli
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INSTALLATION INSTRUCTIONS 6. If an Energy Management System - EMS (load E. Turn "ON" the furnace dip switch when a furnace is shed) is to be used with the control, two wires connected to the blue wires off the control board. must be routed to the electrical control box. The F. Differential dip switch is the difference between the signal required for this function is a normally open "ON/OFF" cycle of the thermostat. The normal dif- relay contact. When the EMS calls for the com- ferential is prese
