Camec IWH-1.5, 043993, 042793 Installation And Operating Instructions Manual

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IWH-1.5 Instantaneous Gas Water Heater

Installation and Operating Instructions – Version 11.3

Part Numbers: 043993 (Black Door); 042793 (White Door)

The IWH-1.5 instantaneous water heater is designed according the Australian Standards for
installation in recreational vehicles. This water heater is not for use in space heating or
marine application.

WARNING: If the information in these instructions is not followed exactly,

a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this
or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Evacuate all persons from the caravan or RV.
Shut off the gas supply at the gas container or source.

Do not touch any electrical switch, or use any phone or radio in the vehicle.
Do not start the vehicle’s engine or electric generator.

Contact the nearest gas supplier or qualified service technician for repairs.
If you cannot reach a gas supplier or qualified service technician, contact the

nearest fire station or emergency services.

Do not turn on the gas supply until the gas leak(s) has been repaired.

Installation and service must be performed by a qualified installer, service agency, OEM
or the gas supplier.

To avoid scalding, water supplied to the shower and hand basin should pass
through a tempering valve to restrict the water temperature to 50 degrees C.
We recommend the John Guest tempering valve 12mm – code 042586.

WARNING: Installation of this product must comply with the requirements of
AS/NZS 3500.4

WARNING: Do not block any pressure relief valves if fitted when installing
this Hot Water System.

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Critical Installation Warnings

● Install in recreation vehicles only. RV’s are recreation vehicles designed as temporary
living quarters for recreation, camping, or travel use having their own power or towed by
another vehicle.

● All combustion air must be supplied from outside the RV, and all products of combustion
must be vented to outside the RV.

● DO NOT vent water heater with venting system serving another appliance.

● DO NOT vent water heater to an outside enclosed porch area.

● Protect building materials from flue gas exhaust.

● Install water heater on an exterior wall, with access door opening to outdoors.

● DO NOT modify water heater in any way.

● DO NOT alter water heater for a positive grounding system.

● DO NOT HI-POT water heater unless electronic ignition system (circuit board) has been
disconnected.

● DO NOT use battery charger to supply power to water heater even when testing.
Do not install close to opening door or under room slide-out where the vent or inlet louvers
can be obstructed.

● This appliance shall be installed by authorised persons only and in accordance with these
installation instructions, AS5601.2, local gas fitting regulations, municipal building codes,
electrical wiring regulations, local water supply regulations and any other statutory
regulations.

● Remove every packaging and transit protection in- and outside of the water heater

● This appliance shall be installed by authorised persons only and in accordance with these
installation instructions, AS5601.2, local gas fitting regulations, municipal building codes,
electrical wiring regulations, local water supply regulations and any other statutory
regulations.

Installation Instructions for the IWH-1.5 Water Heater

The IWH-1.5 water heater is designed to be installable and removable from the exterior of
the vehicle. The mounting instructions are for the PrecisionTemp surface mount door. No
other door should be used. Doing so will void the warranty and cause the heater to
malfunction and could cause damage or injury.

Please read these instructions before making any modifications to the construction of your
caravan or RV.

Selecting Installation Location

Review the following guidelines carefully before choosing the location for the water heater
and ensure the location complies with the requirements of the current edition of AS5601.2
before installation. The water heater must not be installed in an area where the vent can be
covered when any door or access panel on the coach is opened. The water heater should be
located in an area where leakage will not result in damage to other items of, or in the
structure. If such an area cannot be avoided, it is recommended that a suitable pan and drain
be installed under the heater.

Install the heater as close to the gas supply as practical to minimize length of the gas line.

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.

Although the IWH-1.5 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

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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 refers to the heater with a surface mount door. The IWH-1.5 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 pro­tect the skin of the side wall.
Cut a rectangular hole with a width of 33 cm and a height of 33cm at the selected position.

Push the IWH-1.5 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 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.
Place the corner pieces in the corner so the holes line up and put four screws in each corner.
Seal where the corner bracket meets the corner of the case. Remove excess sealant.