#042793 Manual

Version 1.1

There must be a minimum of 25 cm of clearance between the vent cover and any other surface.

Do not install where the vent is closer than 40 cm from any window or opening into the coach.

Do not block or restrict door louvers, this will damage the IWH-1.5-13.5.

Although the IWH-1.5-13.5 can be mounted with zero clearance around the sides, top and bottom, be

sure that the installation does not interfere with any wiring, plumbing or cabinets inside the coach.

Do not install the water heater or any other appliance where it can vent into an area covered by an

awning, canopy or any other enclosure. For better support and ease of installation, install where the

bottom of the heater case rests on a floor.

Installing Heater In The Side Wall Of An RV

The model IWH-1.5-13.5 refers to the heater with a surface mount door. The IWH-1.5-13.5 can retrofit

most tank water heaters without side wall modification regardless of side wall framing. It is possible,

that you have to use a kind of adapter frame.

Surface Mount Installation

 Surround the opening on the skin of the coach with four to six inches of masking tape to pro-

tect the skin of the side wall.

 Cut a rectangular hole with a width of 330mm and a height of 330mm at the selected position.

 Push the IWH-1.5-13.5 into the opening. Center the heater in the opening and start a screw in

the top center hole.

 Run the screw down but not tight. Apply silicone or other appropriate sealant under the IWH-

1.5-13.5 flanges.

 Push the unit into the opening to bed into the sealant. Now screw in the other three center

screws.

 Apply silicone or other appropriate sealant heavily in the corners and on the flange around

the corner holes.

 Install all the remaining screws and remove excess sealant.

Connection of the Gas Supply

Connect an approved gas line at the 3/8” SAE male gas inlet and use an approved sealant for this

connection. Due to the high gas rate, we recommend a gas supply pipe of 8mm minimum diameter.

Gas pipe sizing and flueing must be in accordance with AS 5601.2.

Ensure the fastener securing the gas line to the unit is done up securely and tested with soapy water

or a leak detector, to verify that there are no leaks, as part of commissioning the unit.