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Summary of Contents for Dometic BR36H70CR
- Page 1 BR342 Ducted Installation Instructions Australian Version – Electronic Wall Control...
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Page 2: Explanation Of Symbols
BR342 Ducted Installation Instructions Introduction • The BR342 reverse cycle rooftop air-conditioner is designed for installation onto Recreational Vehicles (RV’s) at the time of manufacture or as a replacement for an existing ducted rooftop unit. Explanation of Symbols DANGER! Safety instruction: Failure to observe this instruction will cause fatal or serious injury. WARNING! Safety instruction: Failure to observe this instruction can cause fatal or serious injury. -
Page 3: Safety Instructions
BR342 Ducted Installation Instructions Safety Instructions • Please observe the prescribed safety instructions and stipulations from the vehicle manufacturer and service workshops. • The manufacturer accepts no liability for damage in the following cases: − Faulty assembly or connection − Damage to the product resulting from mechanical influences and excess voltage −... - Page 4 BR342 Ducted Installation Instructions Safety Instructions – Handling the Device WARNING! • Installation and repair of the roof air conditioner may only be carried out by qualified personnel who are familiar with the risks involved and the relevant regulations. Inadequate repairs may cause serious hazards. For repair service, please contact the service centre in your country (addresses on the back page).
- Page 5 BR342 Ducted Installation Instructions Safety Instructions – Handling the Device NOTICE! • Only use the device as intended. • The roof air conditioner is not suitable for use in agricultural or construction vehicles. • Do not make any alterations or conversions to the device. •...
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Page 6: Roof Requirements
BR342 Ducted Installation Instructions Unit Data Roof Requirements • A 350mm×350mm (±3.17mm) square opening (hereinafter referred to as "roof opening") is required for installing this unit • Roof construction with rafters/joists support frames on a minimum of 405mm centres. • Minimum of 38mm and maximum of 152mm distance between roof to ceiling of RV. - Page 7 BR342 Ducted Installation Instructions Choosing a Fitment Location • This unit is specifically designed for installation on the roof of an RV. When determining your cooling requirements, the following should be considered: − Size of RV; − Window area (increases heat gain); −...
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Page 8: Roof Preparation
BR342 Ducted Installation Instructions Choosing a Fitment Location NOTICE! Maintain structural integrity. Otherwise damage to product and/or RV could occur. • The roof must be designed to support 59 kg when the RV is in motion. Normally a FIG. 2 90.7kg. - Page 9 BR342 Ducted Installation Instructions Roof Preparation NOTE Opening Requirements: Before preparing the ceiling opening, the type of system options MUST be decided upon. Read all of the following instructions before beginning the installation. • Carefully mark and cut the required roof opening. See “Roof Requirements" section on pg 6.
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Page 10: Air Distribution Duct Sizing & Design
BR342 Ducted Installation Instructions Air Distribution Duct Sizing & Design • The installer of this system must design the air distribution system for their particular application. Several requirements must be met for the unit to operate properly. NOTICE! Make sure ductwork will NOT bend or collapse during and after installation, and that it is correctly insulated and sealed. - Page 11 • Dometic recommends the basic configuration shown in (FIG 6), for installing this system. We have found by testing, that this configuration works best in most applications. It is the responsibility of the installer to review each RV floor plan to determine the following: −...
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Page 12: Wiring Requirements
BR342 Ducted Installation Instructions Air Distribution Duct Sizing & Design • These items must be determined in conjunction with the Air Distribution Duct System Sizing & Design requirements. See "Table A - Air Distribution Duct Sizing & Design" on page 6. Wiring Requirements •... - Page 13 BR342 Ducted Installation Instructions Placing Unit on Rooftop • Remove the unit from the carton and discard carton. CAUTION! Lifting Hazard: Use proper lifting technique and control when lifting product. The rooftop unit weighs approximately 35 kg. Follow occupational health of safety guide when lifting or moving the unit. Failure to obey this caution could result in injury.
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Page 14: Installing The Unit
BR342 Ducted Installation Instructions Installing the Unit FIG. 7 • Check gasket alignment of the unit over the roof opening and adjust if necessary. Unit may be moved from below by slightly lifting. See FIG. 7. • Remove return air cover and ceiling template from carton. See FIG. 8. •... - Page 15 BR342 Ducted Installation Instructions Installing the Unit FIG. 10 • Hold the ceiling template up to the roof opening. Make sure the large plate faces the rear of the RV. See FIG. 10. • Start each mounting bolt through the ceiling template and up into the unit base pan by hand.
- Page 16 BR342 Ducted Installation Instructions Installing the Unit FIG. 11 NOTICE! Incorrect installation of the divider could cause compressor to short- cycle, resulting in supply circuit overload and reduced product performance. • Place the divider plate up to bottom of the unit base pan firmly. The foam tape on the divider plate must seal to bottom of base pan.
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Page 17: Wiring Connections
BR342 Ducted Installation Instructions Installing the Unit • Excess width is intended to seal the divider plate to the sides of the roof opening. This is to help prevent cold air discharge from circulating into the unit return air opening. •... - Page 18 BR342 Ducted Installation Instructions Installing the Return Air Cover FIG. 13 • Remove the return air grille from the return air cover. • Place the return air cover up to the ceiling template. • Install cover to template using six (6) supplied #8 x 3/8″ blunt point Phillips head screws.
- Page 19 BR342 Ducted Installation Instructions Fitment of Optional Condensation Drain Extension FIG. 14 • The unit features condensation drain outlets which allow the fitment of a PVC tube in order to channel the condensation water to a specific area. For example it can be used to channel the condensation water to the rear of the caravan or RV and prevent runoff to the sides where doorways or windows are.
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Page 20: Service - Unit Does Not Operate
BR342 Ducted Installation Instructions Service – Unit does not Operate • If your unit fails to operate or operates improperly, check the following before calling your service centre. − If RV connected to generator, check to be sure the generator is running and producing power. −... - Page 21 BR342 Ducted Installation Instructions Wiring Diagram – Heat Pump BR36H70CR...
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