Electrical Operation; Switching Off - Truma BOA Operating Instructions Manual

Gas and electric storage water heater

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Operating instructions manual (13 pages)

Table of Contents

Enlarged version

Truma-Boiler

liquid gas storage

water heater with

additional electric

heating 230 - 240 V

Operating instructions

Always observe the oper-

ating instructions prior to

starting! The vehicle owner is

responsible for the correct

operation of the appliance.

The installer or vehicle owner

must apply the yellow sticker

with the warning information,

which is enclosed with the

appliance, to a place in the

vehicle where it is clearly

visible to all users (e.g. on the

wardrobe door)! Ask Truma to

send you stickers, if neces-

sary.

Attention: Before using the

first time, it is essential to

flush the entire water supply

through with clean warm

water. Always mount the

cowl cap when the water

heater is not being operated!

Drain the water heater if

there is a risk of frost! There

shall be no claims under

guarantee for damage cau-

sed by frost!

If connecting to a central

water supply (rural or city

connection) or when using

more powerful pumps, a

pressure reducer must be

used which prevents pres-

sures of greater than 280 kPa

occurring in the Boiler.

Safety/drain valve

e = Lever position

"Closed"

f = Lever position

"Drain"

Filling the Truma-

Boiler with water

1. Check that the safety/ drain

valve in the cold water intake

is closed: Lever should be in

horizontal position, position

(e).

2. Open hot tap in bathroom

or kitchen, with pre-selecting

mixing taps or single-lever fit-

tings set to "hot".

3. Switch on power for water

pump (main switch or pump

switch).

Leave the tap open to let air

escape while the water hea-

ter is filling. The heater is fil-

led when water flows out of

the tap.

Residues of frozen water can

prevent filling if there is a

frost. The water heater can be

defrosted by switching on the

heater for a short period

(max. 2 minutes). Frozen

pipes can be defrosted by

heating the room.

Note: If just the cold water

system is being used, with-

out water heater, the heater

tank is also filled up with

water. In order to avoid

damage through frost, the

water contents must be drai-

ned by actuating the safety/

drain valve, also when the

heater has not been used. As

an alternative, a shut-off valve

can be installed upstream of

the cold and hot water

connection.

Draining the water

heater

1. Disconnect power for

water pump (main switch or

pump switch).

2. Open hot water taps in

bathroom and kitchen.

3. Open safety/drain valve:

Lever in vertical position, po-

sition (f).

4. The water heater is now

drained directly to the outside

via the safety/drain valve.

Check that the water con-

tents have been completely

drained (10 or 14 litres).

Gas operation

a = Rotary control knob

On/Off and temperature

control

b = Green indicator lamp

"Operation"

c = Red indicator lamp

"Failure"

Gas operating

instructions

Attention: Never operate

the water heater without

water in it!

If the wall cowl is positioned

close to an opening window

(or hatch) - in particular direct-

ly under it - it must remain

closed when the water heater

is in use (see warning plate).

1. Remove cowl cover.

2. Open gas cylinder and

open quick-acting valve in the

gas supply line.

3. Select required water tem-

perature at rotary knob (b) in-

finitely variable from approx.

30° to 70°C.

4. Switch on water heater at

the slide switch (a) on the

control panel, green indicator

lamp "Operation" lights up.

5. If there is air in the gas

supply line, it may take up to

a minute before the gas is

available for combustion. If

the appliance switches to

"Failure" during this period,

switch off the appliance - wait

5 minutes - and switch on

again!

Switching off

(gas operation)

Switch off the water heater at

the slide switch (a).

Drain the water heater if

there is a risk of frost!

If the water heater is not to

be used for a longer period,

mount cowl cover (non-obser-

vance of this point can lead to

the function of the appliance

being impaired through water,

dirt or insects), close quick-ac-

ting valve in the gas supply

line and close the gas cylin-

der.

There shall be no claim

under guarantee if this

point is not observed.

Always remove the cowl

cover prior to operating the

water heater!

Red indicator lamp

"Failure"

The red indictor lamp (c)

lights up if there is a failure.

The reason for such an indi-

cation is, for example, no gas

available or air in the gas sup-

ply system, triggering of the

excess temperature monitor

etc. To unlock, switch off the

appliance, wait 5 minutes,

and switch on again.

In event of faults, always

contact the Truma Service

(please refer to page 9)