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ENGLISH
Remote auxiliaR y ai R conditioning
and ai R dist Ribution systems
fo R volvo l-5 chassis
installation guidelines
For Volvo Truck Models VN 770, 780, 830, 880
Dometic Environmental Corporation
Rev. 20071204
L-2485
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COPYRIGHT © 2007 Dometic Corporation, All Rights Reserved. No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, recording or otherwise without prior written consent by Dometic Environmental Corporation. Every precaution has been taken in the preparation of this manual to insure its accuracy. However, Dometic Environmental Corporation assumes no responsibility for errors and omis
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volvo l-5 a/c - air distribution system dometic tRuck Remote auxiliaR y ac systems fo R volvo l -5 chassis contents intRoduction 4 installing the contRol 4 Required Tools 4 Installing the Qt Digital Display 4 Mounting the Power Logic Box 5 Routing Cables 6 installing the RetuRn aiR vent 7 installing the supply aiR distRibution 7 Volvo Ductwork 7 Custom Air Distribution Plenum 10 Preparing for mounting the footwell and air plenum 10 Re-installing the Footwell 10 Installing the Plenum on the Fro
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volvo l-5 a/c - air distribution system int Roduction The instructions that follow represent years of development of parts and procedures that make the system perform well and appear “factory-installed.” Figure 1. Typical Control Installation installing the Qt digital display installing the cont Rol Refer to the mounting instructions and template Mount the control in a place that provides the driver provided with your kit. convenient access. An ideal location would be near the current HVAC
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volvo l-5 a/c - air distribution system Figure 2. Mounting location for Power Logic Box Place the backing plate on the front of the bunk mounting the power logic box center area, off center toward the passenger side. The Power Logic Box (PLB) will be mounted under Locate the two weldnuts, and place the backing plate the rear, center portion of the bunk (see Figure 2). To between them. Mark the four mounting holes, and accomplish this, first remove the carpeted panel at remove the plate.
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volvo l-5 a/c - air distribution system Figure 3. Fastener location on Power Logic Box onto the machine screws. Secure the box with four The flexible power cord(s) will go toward the power nuts and lockwashers. KEPS nuts are easiest to use. distribution panel. The phone cable mounted on the CHEB unit plugs Routing cables into the hole marked “TSEP.” The box has several different types of cables: The phone cable from the control display plugs into the hole marked “Display.” • Wires enclosed i
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volvo l-5 a/c - air distribution system Figure 4. Vent location installing the Retu Rn aiR installing the supply aiR vent dist Ribution The supplied return air vent should be installed under For this installation, a custom air plenum must be the bunk in the side panel, either on the passenger or installed, as well as the Volvo ductwork. A 4" duct driver side. The passenger side is recommended as will feed the Volvo ductwork, and a 6" (for the 14k there is less chance that it will get blocke
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volvo l-5 a/c - air distribution system Figure 5. Location of installed ductwork Figure 6. Footwell removed english 8
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volvo l-5 a/c - air distribution system Figure 7. Removal of sensor. Figure 8a. Four inch hole cut in Volvo duct. Figure 8b. Installation of grill and ducting. english
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volvo l-5 a/c - air distribution system Figure 9. Installing the weatherstripping on the custom plenum. Locate the V4 RND BLACK 4" grill. Using two cable carpet at the bottom of the plenum duct so that the ties, secure the vanes so that they will not turn. See carpet will fold up. Figure 8a and 8b. Use a length of the supplied weather stripping under the lip of the grill to prevent air from preparing for mounting the foot- leaking after installation. Install the grill from the inside well an
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volvo l-5 a/c - air distribution system Figure 10. Preparing to install grills in footwell cover. Figure 11. Location of cut out for ductwork. 11 english
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volvo l-5 a/c - air distribution system Figure 12a. Template for 4" duct for 10K unit english 12 3.50 2.00 Cut with 3.5" holesaw Cut with reciprocating saw
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volvo l-5 a/c - air distribution system Figure 12b. Template for 6" duct for 14K unit 13 english 4.00 3.50 Drill with 4" hole saw Cut with reciprocating saw
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volvo l-5 a/c - air distribution system Figure 13. Supply Air Distribution Plenum. unit” line with the notations for the quick connections installing the plenum on the front should be nearest the bunk wall. The line of the “edge of the cheb of the unit” should be approximately 5" from the bunk Using a ¼" nutdriver, remove the plastic 5" or 7" oval wall. hose adaptor. Find the 4"x 6" (or 4"x4") distribution plenum. Install the weather stripping on the contact Mark for the two quick connec
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volvo l-5 a/c - air distribution system Figure 14. CHEB installed in passenger luggage box. • One inboard on the CHEB at the corner nearest the Install the watertight grommets (gray) into the two rear of the truck 1-7/8" holes. Push in until they lock in the hole. • One on the front, outboard Insert the CHEB unit into the truck. Make sure that • One on the outboard near the air distribution the drain fitting is lined up with the hole. Install the plenum brackets by using one ¼"-20 x 2½" bolt
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volvo l-5 a/c - air distribution system Figure 15. View of supply ducting connected. Be sure to get the face and the threads. Hand tighten tors between the CHEB and PLB (the ones in the split the quick connect, making sure they thread correctly. loom). Route and clip to prevent chafing. Tighten with the correct wrenches (13/16", ¾", and 15/16"). Tighten to 10-12 ft-lbs. Connect the ductwork to the CHEB, use the hose clamps to secure. It may be difficult to get the 6" duct note: on, but it wi
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volvo l-5 a/c - air distribution system Figure 16. Condenser installed on mounting plate. Mount the condenser to the mounting plate provi- installing the condense R ded. The quick connects should be on the end of the mounting plate with the side extension. Use the The Dometic condenser may be installed either under nylok nuts provided and snug all bolts. This mounting or behind the sleeper. These installations (and the plate is specially designed to fit under the Volvo L-5 parts in the kit
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volvo l-5 a/c - air distribution system Figure 17. Routing of refrigerent lines. opposite side to prevent movement and chafing. Use Routing the Ref Rige Rant cable ties to secure the refrigerant lines to each other lines and condense R powe R and to the condenser power cable. After connecting cable the condenser power cable, secure power cord in such a manner that the connections are pulled in a The refrigerant lines will pass over the exhaust pipe, linear fashion, not to the side. then
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volvo l-5 a/c - air distribution system Figure 17. Heat shield installed. Figure 18. Routing of refrigerent lines 1 english
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volvo l-5 a/c - air distribution system Figure 20. Routing of refrigerant lines. Next, check the cooling mode. Press the COOL t esting the installation button, then run the SETpoint down sufficiently for the unit to come on in the cool mode. The COOLING LED Supply power to the power distribution panel with should illuminate. The air should start cooling down. either shorepower or generator power. Look at the display panel and confirm that the display is lit up. Check to make sure the con
