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BR342 Ducted Installation Instructions

Unit Data

•

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.

6

Roof Requirements

Roof Cavity Depth

Duct Cross-Sectional

Area

Duct Size

Register Requirements

Total System Static Pressure

(Hi Fan, Grilles fitted)

50.8 to 139.7mm

13550mm² min

Depth: 38.1-63.5mm

Width: 177.8-254mm

Total Length: 4.5-12m

Short Run Length: 1/3 of Total

No. per Run: 4 min

Free Air Area: 9032mm²

Duct End Distance: 127-203mm

Elbow Distance: 381mm

1.8 to 3.0kPa

Table A

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Air Distribution Duct Sizing & Design

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Summary of Contents for BR342

Page 1: ...BR342 Ducted Installation Instructions Australian Version Electronic Wall Control 1 ...

Page 2: ...nation 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 CAUTION Safety instruction Failure to observe this instruction can lead to injury NOTICE Failure to observe this instruction can material damage and impair the function of the product NOTE...

Page 3: ... for damage in the following cases Faulty assembly or connection Damage to the product resulting from mechanical influences and excess voltage Alterations to the product without express permission from the manufacturer Use for purposes other than those described in the operating manual Note the following basic safety information when using electrical devices to protect against Electric shock Fire ...

Page 4: ...al capabilities or whose lack of experience and knowledge prevent them from using the device safely should not use it without supervision or instruction by a responsible person Do not undo the upper cover of the roof air conditioner in the event of a fire Use approved extinguishing agents instead Do not use water to extinguish fires 4 CAUTION The roof air conditioner must be installed securely so ...

Page 5: ...the system must be checked by a specialist company and repaired properly The refrigerant must never be released into the air 5 Safety Instructions Handling Electrical Cables WARNING The electrical power supply may only be connected by a qualified electrician CAUTION Fit a fuse of at least 10 A to the connection with the vehicle s power supply Attach and lay the cables so that they cannot be trippe...

Page 6: ...d maximum of 152mm distance between roof to ceiling of RV 6 Roof Requirements Roof Cavity Depth Duct Cross Sectional Area Duct Size Register Requirements Total System Static Pressure Hi Fan Grilles fitted 50 8 to 139 7mm 13550mm min Depth 38 1 63 5mm Width 177 8 254mm Total Length 4 5 12m Short Run Length 1 3 of Total No per Run 4 min Free Air Area 9032mm Duct End Distance 127 203mm Elbow Distance...

Page 7: ...nal comfort level required For one unit installation The unit should be mounted slightly forward of centre front to back and centred from side to side For two unit installations Install one unit 1 3 and one unit 2 3 s from front of RV and centred from side to side It is preferred that the unit be installed on a relatively flat and level roof section measured with the RV parked on a level surface S...

Page 8: ... See FIG 2 8 NOTICE Maintain structural integrity Otherwise damage to product and or RV could occur FIG 2 431 8mm 431 8mm 431 8mm 431 8mm 19mm 38mm 38mm 31 75mm 44 45mm Roof Preparation WARNING Fire or Electrical Shock Hazard Make sure there are no obstacles wires pipes etc inside RV s roof floor walls Shut OFF gas supply disconnect 240VAC power from RV and disconnect positive 12VDC terminal from ...

Page 9: ...efore beginning the installation NOTICE Maintain structural integrity Otherwise damage to product and or RV could occur NEVER create a low spot on RV roof Otherwise water will pool and could cause a leak The opening created must be framed to provide adequate support and prevent air from being drawn from the roof cavity Framing stock 3 4 or more in thickness must be used Remember to provide an entr...

Page 10: ...aled Otherwise damage to roof structure and ceiling could occur All discharge air ducts must be properly insulated to prevent condensation from forming on their surfaces or adjacent surfaces during operation of unit This insulation must be R 7 minimum See FIG 4 Ducts and their joints must be sealed to prevent condensation from forming on adjacent surfaces during operation of the unit Return air op...

Page 11: ...t applications It is the responsibility of the installer to review each RV floor plan to determine the following Duct size Duct layout Register size Register location Thermostat location Indoor Temperature Sensor Location 11 FIG 5 7742mm free area per register These items must be determined in conjunction with the Air Distribution Duct System Sizing Design requirements See Table Air Distribution D...

Page 12: ...ze wire can be determined from chart on page 6 This supply wire must be located in the front portion of the roof opening The power MUST be on an appropriately sized separate time delay fuse or circuit breaker The proper size protection can be determined from data table on page 6 Make sure that at least 381mm of supply wire extends into the roof opening This insures an easy connection at the juncti...

Page 13: ...ure to obey this caution could result in injury Place unit on the roof NOTICE Do NOT slide unit Otherwise damage to gasket on bottom of unit may occur and could cause a leak Lift and place the unit over the prepared opening using the gasket on the unit as a guide See FIG 4 Place the electronic wall control kit and the RAG kit inside the RV These boxes contain mounting hardware for the unit and wil...

Page 14: ...ghtly lifting See FIG 7 Remove return air cover and ceiling template from carton See FIG 8 The unit is fixed using a four 4 bolt pattern for installing the RAG kit These bolts and the electronic wall control are supplied separately Reach up into the return air opening and pull the unit electric cord and control cables down for later connection See FIG 9 14 FIG 7 FIG 8 FIG 9 ...

Page 15: ... FIG 10 15 FIG 10 NOTICE Tighten mounting bolts to correct torque specifications Overtightening could damage unit s base pan or ceiling template Not enough torque will allow an inadequate roof seal and could cause a leak Tighten all four 4 mounting bolts EVENLY to 4 5 to 5 5 Nm See FIG 10 Measure the ceiling to roof thickness If distance is 50 8 95 25mm remove perforated tab from divider plate See...

Page 16: ... the divider plate must seal to bottom of base pan See FIG 11 NOTE The adhesive on the double sided tape is extremely sticky Make sure the divider plate is properly positioned before pressing into place With slight pressure push the divider plate against the double sided tape on the ceiling template Locate the 3 2 177 8 457 2mm self adhesive insulation supplied with the RAG kit Remove the backing ...

Page 17: ...urn air stream Connect the communication wire to the wire from the electronic wall control also refer to instructions provided with the wall control Make connections for the 240VAC positive negative and earth from the supply to the rooftop unit and ensure they are well insulated Tuck any excess wire up out of the way WARNING Electrical Shock Hazard Verify 240VAC power is disconnected from the RV F...

Page 18: ...e 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 Re install filter return air grille into return air cover Align tabs with mating notches and snap into place Install two 2 hole plugs into screw holes in back of return air cover See FIG 13 FIG 13 ...

Page 19: ...pe fitting on the bottom of the rooftop unit around 15mm to help prevent detachment over time refer to FIG 14 The PVC tube should be routed around the foam support blocks on the underside of the rooftop unit to ensure the tube does not get compressed The condition of the PVC tube should be regularly checked to ensure it is free of any defects that may prevent good drainage such as being blocked co...

Page 20: ...se or circuit breaker to see if it is open Ensure fuse is not burnt or circuit breaker is ON and not activated After the above checks call your local service centre for further help This unit must be serviced by qualified service personnel only When calling for service always give the following Unit model and serial number found on the identification label located on base pan of unit bottom Return...

Page 21: ...BR342 Ducted Installation Instructions Wiring Diagram Heat Pump BR36H70CR 21 ...

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