Truma AquaGo basic, AquaGo comfort plus, DLE60B, AquaGo comfort, DLE60CP Operating Instructions Manual

Truma AquaGo® LP Gas Instant Water Heater

Model: Truma AquaGo® basic (DLE60B) *

Truma AquaGo® comfort (DLE60C) * * Patent Pending
Truma AquaGo® comfort plus (DLE60CP) *

US Operating instructions Page 2

If the information in these instructions is not
followed exactly, a fire or explosion may result,
causing property damage, personal injury, or
death.

– Do not store or use gasoline or other flam-

mable vapors and liquids in the vicinity of
this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

• Evacuate all persons from the vehicle.

• 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 certified
service technician for repairs.

• If you cannot reach a gas supplier or certi­fied service technician, contact the nearest
fire department.

• Do not turn on the gas supply until gas leaks
have been repaired.

4010007

Sales and Service

Truma Corp.
825 East Jackson Blvd.
Elkhart, IN 46516
USA
Toll Free 1-855-558-7862
Fax [phone]
[email protected]
www.truma.net

Installation instructions Page 25

To be kept in the vehicle.
This document is part of the water heater.

Conforms to ANSI Std. Z21.10.3
Certified to CSA Std. 4.3

Installation and service must be performed by
a certified service technician, service agency,
or the gas supplier.

3

Truma AquaGo® instant water heater (appliance)

Overview / Designation of parts

2

19

18

1

1617

15

Fig. 1 (Unit Casing/Frame partially omitted)

Top

24

4a4 26 5

6

7

9

10

11

LED 3

12

13

2511a

14

6

22

22

20

LED 1

Power

8

Power

LED 2

27

21

2

3

1

Fig. 2 (rear view of appliance)

Legend

1 Cold water connection 1/2 in. NPT
2 Hot water connection 1/2 in. NPT
3 Circulation line connection 1/2in. NPT

(AquaGo® comfort plus model only)

4 Pressure relief valve

4a Test lever

5 Flue fan
6 Unit casing
7 Control unit
8 POWER switch

9 Latch
10 Flue duct
11 Easy Drain Lever

11a Water inlet filter

12 Gas pipe grommet (side)
13 Gas valve
14 Cover plate

2

23

15 Temperature stabilizer
16 Water flow sensor
17 Burner
18 Circulation pump (AquaGo® comfort

and AquaGo® comfort plus models)
19 Heat exchanger
20 Access door (assembly)
21 Turn lock
22 Webbing
23 Venting grid (air inlet, exhaust)
24 Grommet for 12 V cable

(power supply)
25 Type plate
26 Exhaust pressure switch

LED 1 Power ON LED – green
LED 2 Error code LED – red
LED 3 Status LED 3 – yellow

Table of Contents

Overview / Designation of parts ......................................... 2

Intended use .......................................................................... 3

Prohibited use ........................................................................ 3

Consumer Safety Information

Safety symbols and signal words ...................................... 4

Safety behavior and practices ............................................. 4

Safety features ...................................................................... 6

Operating Instructions

How the appliance works .................................................... 7

Pressure relief valve .............................................................. 8

Access door ............................................................................ 8

Opening the access door ......................................................... 8

Removing the access door ....................................................... 9

Closing the access door ........................................................... 9

Starting the appliance .......................................................... 9

Inspections before each use .................................................... 9

Operating procedures ............................................................. 10

Switching ON the appliance ................................................... 11

Operating modes (control panel) ............................................ 11

Switching OFF the appliance ................................................. 12

Winter operation ................................................................. 12

Only AquaGo® comfort / AquaGo® comfort plus .................... 13

Winterizing ........................................................................... 13

Winterizing the appliance ....................................................... 13

Winterizing the RV with a winterizing fluid ............................ 14

AquaGo® technical data ...................................................... 14

Maintenance ........................................................................ 15

Draining the water and cleaning the water inlet filter ............ 15

Decalcification ..................................................................... 16

Decalcification frequency ....................................................... 16

Decalcification (models without control panel) .................... 17

Decalcification (models with control panel) .......................... 17

Interrupting decalcification ..................................................... 20

Accessories .......................................................................... 21

Troubleshooting .................................................................. 22

“AquaGo” MANUFACTURER LIMITED WARRANTY ..... 24

Preparing the water connection ............................................. 29

Preparing the 12 V DC electrical connection ......................... 30

Mounting the control panel .................................................... 30

Connection diagrams ............................................................. 31

Installing the appliance ...................................................... 32

Connecting the gas line (gas side connection) ...................... 33

Connecting the gas line (gas rear connection) ....................... 34

Functional check ................................................................. 36

APPENDIX A – Error Codes ................................................ 37

APPENDIX B – Functional Diagram .................................. 38

APPENDIX C – Spare Parts (all models) ........................... 39

APPENDIX D – Electrical Connection Diagram ............... 40

APPENDIX E – Notes for painting the access door and

cover plate ............................................................................ 41

Intended use

The Truma AquaGo® instant water heater (appli­ance) may be used only to heat water in recre­ational vehicles (RVs) that are used for recre­ation, travel, or camping.

RVs are recreational vehicles designed as tem­porary living quarters for recreation, camping,
or travel use. Such vehicles have their own
power or are towed by another vehicle.

Prohibited use

Any use other than the intended use (see above)
is prohibited.
Examples of prohibited use:

• Use in a marine environment.

• Use as part of a space heating system.

• Use in mobile homes.

• Use in food trucks or roadside food vending
vehicles.

• Use in construction trailers.

• Use as a pool heater.

Installation Instructions

Safety behavior and practices ........................................... 25

Selecting a suitable location ............................................. 26

Preparing for installation ................................................... 27

Preparing the installation site ................................................. 27

Preparing the gas connection ................................................ 28

– Gas side connection ............................................................ 28

– Gas rear connection ............................................................ 29

California Proposition 65 lists chemical sub­stances known to the state to cause cancer,
birth defects, death, serious illness, or other
reproductive harm. This product may contain
such substances or such substances may be
formed from combustion of fuel (gas) or be
components of the product itself.

3

Consumer Safety Information

• Keep the air inlet and exhaust outlet free of
obstructions in order to ensure clean com­bustion.

Safety symbols and signal words

This is the safety alert symbol. This symbol
alerts you to potential hazards that can kill or
hurt you and others.

indicates a hazardous situation
which, if not avoided, will result in death or seri­ous injury.

indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.

indicates a hazardous situation
which, if not avoided, could result in minor or
moderate injury.

is used to address practices not re-

lated to physical injury.

• Do not place articles on or against the ap­pliance. Do not lean any objects against
the water heater’s access door or place any
foreign objects within 2 feet (61 cm) of the
access door.

• Do not use or store flammable materials near
the appliance.

• Do not spray aerosols in the vicinity of the
appliance while it is in operation.

• Do not modify the appliance.

Responsibilities of the operator

• Avoid possible serious health issues caused
by electromagnetic radiation. All persons
with a pacemaker are prohibited from open­ing the access door and maintaining the
appliance during operation.

Other important information or tips

Safety behavior and practices

Ensuring a safe operating environment

• Suffocation through exhaust
gases. To ensure dissipation of exhaust
gases, operate the appliance outdoors only.

– Never use in enclosed spaces or tents or

breathe in the exhaust gases.

– If installing an awning, make sure that

the exhaust system terminates to the
outdoors.

– If you park the RV in an enclosed space,

such as a garage or repair shop:
· You must block the fuel supply.
· You must switch the appliance off at

the control panel.

• The operator is responsible for the water
filled into the appliance and its quality.

• The use of upright gas cylinders from which
gas is taken in the gas phase is manda­tory for the operation of gas regulators, gas
equipment and gas systems. Gas cylinders
from which gas is taken in the liquid phase
(e. g. for forklifts) must not be used, since
they would result in damage to the gas sys­tem.

• For your own safety it is absolutely neces­sary to have the complete gas installation
regularly checked by an expert (at least every
2 years). The vehicle owner is always respon­sible for arranging the gas inspection.

• Use the appliance only with a functioning LP
gas and carbon monoxide detector installed
in the RV. For installation, operation and func­tion test follow the manufacturer’s guidelines.

4

Safe operation

• Use with LP gas (propane) only. Butane or
any mixtures containing more than 10% bu­tane must not be used.

– LP tanks must be filled by a qualified gas

supplier only.

• The nominal gas system pressure must be

10.5 in. wc.

• Hot water can be dangerous, especially for
infants, children, the elderly, or infirm. It can
cause severe burns. Therefore:

– Never actuate the pressure reliefvalve

(Fig. 1 – 4 ) as long as the appliance is still
hot.

– Never actuate the Easy Drain Lever

(Fig. 1 – 11) as long as the appliance is
under water pressure and/or still hot.

– Always check the water temperature

before entering a shower or bath.

• How long before hot water causes skin dam­age?

Temperature

°F (°C)

155 (68) 1 second
148 (64) 2 seconds
140 (60) 5 seconds
133 (56) 15 seconds
127 (52) 1 minute
124 (51) 3 minutes
120 (48) 5 minutes
100 (37) safe bathing temperature

Source: Moritz, A.R. / Herriques, F.C.: Studies of thermal injuries: the relative
importance of time and surface temperature in causation of cutaneous burns
A. J. Pathol 1947; 23: 695 – 720

Time before skin becomes
scalded

• The water pressure on the inlet side must be
limited to 65 psi (4.5 bar), otherwise internal
components of the appliance will be dam­aged. On (city) water connections with a
pressure higher than 65 psi (4.5 bar) a pres­sure regulator is strongly recommended.

• Shut OFF gas and the LP tank when moving
the RV. This disables all gas appliances and
pilot lights. Gas appliances must never be
operated while the vehicle is in motion.

• Shut OFF the appliance when refueling or
pumping gas, in multi-storey car parks, in
garages or on ferries.

• To avoid damage, make sure no spray water
enters the appliance when cleaning the RV,
e.g., do not spray directly into the openings/
venting grid.

Safe handling of malfunctions

• Switch OFF the gas supply and the appliance:

– if anything seems to be out of the ordinary.
– if you smell gas.

• Fire / explosion if you attempt
to use an appliance that has been dam­aged by flooding or if the vehicle has been
involved in an accident. A damaged appli­ance must be repaired by an expert or be
replaced.

• Only carry out repairs yourself if the solution
is described in the troubleshooting guide of
this manual.

• A damaged appliance may have to be re­placed with a new one.

Safe maintenance and repair

• Repairs may only be carried out by an expert.

• Children must not carry out maintenance,
repair or cleaning work.

• Before accessing terminals, please secure all
supply circuits (i.e. 12 V) and ensure that the
gas supply is securely turned off.

While driving

• To avoid damage, make sure the access door
(Fig. 1 – 20) to the appliance is closed before
moving the RV, as follows:

– Turn lock is engaged.
– Access door is flush with the cover plate.

• Any work involving connection or intercon­necting wiring must be carried out by a
licensed electrician.

5

• Only use Truma AquaGo® decalcification tab­lets to decalcify the appliance to avoid dam­age and the voiding of your warranty. Never
use vinegar. Call your local AquaGo® dealer
or service provider or see www.truma.net for
more information.

– The use of non-Truma-approved sub-

stances for decalcification can cause
chemical reactions and produce haz­ardous substances that could enter the
drinking water.

Safety features

The appliance is equipped with the following
safety devices:

Flame monitoring

If the flame goes out, the gas supply to the
burner is switched off (after 3 failed restarts).

Low-voltage (over-voltage) shutdown

If the voltage drops below 10 VDC (or rises
above 16.4 VDC), the appliance shuts off.

• Any alteration to the appliance or its controls
can cause unforeseen serious hazards and
will void the warranty.

• After a long period of winterization: Flush all
hot/cold water hoses and the appliance thor­oughly with drinking water before using it.

• Keep the appliance free of foreign objects,
e.g., leaves, animals, spiderwebs, and keep
the area around free of snow and ice. The
appliance will not function properly if the
intake air or exhaust terminal is obstructed.

Overcurrent protection

If there is a short circuit in the appliance (>10A),
a fuse on the control unit is activated and the
appliance is switched off.

Monitoring of the flue fan

If there is a failure of the flue fan, the gas supply
to the burner is switched off.

Monitoring of hot water temperature

A water over temperature switch avoids exces­sively high water temperatures in case of a fault.

6

Operating Instructions

Read and follow the “Consumer Safety In­formation” before operating the appliance.

Scalding injuries caused by hot water!

Water temperatures over 127ºF (52ºC) can
cause severe burns or scalding and in extreme
cases even death.

• Before using the hot water faucet or using
the shower, allow the hot water to run until
the water temperature no longer increases.

• Test the temperature of the water before
placing a child in the bath or shower.

• Do not leave a child or an infirm person in
the bath unsupervised.

How the appliance works

The appliance was developed exclusively for use
in recreational vehicles (RVs).

• After some time the maximum temperature
at the faucet or in the shower is reached.
The length of time will depend on the model
(AquaGo® basic, AquaGo® comfort and
AquaGo® comfort plus) and variations in the
water plumbing (length of pipes, insulation,
circulation line, etc.).
Like in a home shower, a comfortable water
temperature at the shower head is reached
by mixing in cold water.

• When the volume flow is less than approxi­mately 0.4 gallons/min (1.5 liter/min) and the
faucet is closed, the burner is automatically
switched off.

The AquaGo® comfort and AquaGo®
comfortplus models are equipped with a cir-

culation pump. The circulation pump as well as
the burner are switched on automatically by the
control unit in order to keep the water tempera­ture above 102°F (39°C) in “COMFORT” mode
and 41°F (5°C) in “ECO” mode.

The appliance is connected between the ve­hicle’s fresh water supply and its hot water
plumbing system.

It is powered by propane and a 12 V power
supply. The ventilation grid on the access door
allows combustion air to flow into the appliance
and exhaust gas to flow out.

When the appliance is switched on, the water
will be warmed on demand:

• A volume-flow sensor in the appliance de­tects when the hot water faucet has been
opened and the volume flow is greater than
approximately 0.4gallons/min (1.5 liter/min).
The burner then starts automatically.

• The burner control continously adjusts the
heater output based on volume flow and
inlet water temperature, so that the tempera­ture at the hot water outlet is approximately
120°F (49°C). A temperature stabilizer is
also installed in the appliance to minimize
fluctuations of the outlet temperature.

Risk of damage in frosty conditions.

Refer to “Winter operation” on page12.

7

Pressure relief valve

4a

open



Scalding injury from hot water and/or
tampering with the pressure relief valve!

• Never actuate the pressure relief valve as
long as the Truma AquaGo® instant water
heater is still hot.

• Do not place a plug or reducing coupling
on the outlet part of the valve.

• The pressure relief valve is a safety
component and must not be removed
for any reason other than replacement.

• The pressure relief valve is not service­able; if defective, it must be replaced.
It must be replaced by a certified ser­vice technician.

• Tampering with the pressure relief
valve will void the warranty.

The appliance is equipped with a pressure relief
valve (Fig. 3) that complies with the standard
for Relief Valves for Hot Water Supply Systems,
ANSI Z21.22

Access door

Opening the access door

1. Turn the turn lock counterclockwise into
the vertical position.

Fig. 4

• The access door can be opened in two
different positions:

– Position  is the maximum opening

width for switching the appliance on
or off.

– Position  is the starting position for

removing the access door.

Fig. 3

4 Pressure relief valve
4a Test lever

4

Damage to the hinge!

• Do not try to remove the access door in
Position . Position  is the maximum
opening width of the access door.

• Only remove the access door in Position .

2. Open the access door to Position .

Fig. 5

8

Removing the access door



close

1. Open the access door to Position .

2. Move the access door upwards to remove it.

I

II

Fig. 6

Closing the access door

Damage to the access door and the RV if
the access door is not closed properly!

• Make sure that the access door is flush
with the cover plate when closed.

1. If removed, insert the access door into the
cover plate.

2. Make sure that the webbing is not pinched
between the access door and the cover
plate.

3. Press the access door against the cover
plate.

4. Turn the turn lock clockwise into the hori-

zontal position.

Starting the appliance

Danger of over-temperature and toxic ex­haust gases!

• Use with LP gas (propane) only. Butane or
any mixtures containing more than 10%
butane must not be used.

• Keep the air inlet and exhaust gas outlet
free of obstructions. Do not lean any ob­jects against the water heater’s access
door or place any foreign objects within
2feet (61cm) of the access door.

Danger of combustion, personal injury
and damage to RV!

• Keep the area around the appliance free
from combustible materials, gasoline, and
other flammable vapors or liquids.

• Switch the gas supply and the appliance
off:

– if anything seems to be out of the ordinary.
– if you smell gas.
– if you move the RV.
– before entering a gas station.
– before entering a tunnel.

Inspections before each use

Check the appliance for the following points
before each use. In case of damage, contact an
authorized Truma service provider and do not
operate the appliance.

1. Check for visible damage, e.g., on the cover
plate or access door.

2. Provide adequate quantities of propane gas
and fresh water.

3. Switch ON and check 12 V power supply of
your RV.

4. Check that the access door of the appliance
is closed.

5. Keep the appliance free of foreign objects,
e.g., leaves, animals, spiderwebs, and keep
the area around free of snow and ice. The
appliance will not function properly if the
intake air or exhaust terminal is obstructed.

Fig. 7

9

Operating procedures

Risk of damage in frosty conditions.

In frosty conditions there is a risk that water
in pipes, faucets and appliances could freeze.
This can cause considerable damage.

• Before you fill water into appliances and
parts that transport water, you must heat
the installation area sufficiently so that the
water cannot freeze.

Proceed as follows to fill the appliance with
water:

Scalding injuries caused by hot water!

Water temperatures over 127ºF (52ºC) can
cause severe burns or scalding and in extreme
cases even death.

• Before using hot water faucet or using the
shower, allow the hot water to run until the
water temperature no longer increases.

• Test the temperature of the water before
placing a child in the bath or shower.

• Do not leave a child or an infirm person in
the bath unsupervised.

1. Close open bypass lines (if present).

2. Turn on fresh water supply or switch on wa­ter pump.

3. Fill the plumbing system.

• Open all water-release points, e.g., cold
and hot water faucets, showers, toilets.

It is important that you bleed the water
system before starting the appliance.

• Once water flows, the plumbing system
is vented. Close the water-release points.

4. Start the appliance as follows:

• Make sure that the LP gas supply is
turned on.

• Switch on the 12 V power supply (RV).

• Open the access door (refer to “Opening
the access door” on page8).

• Switch on the appliance at the POWER
switch. Refer to “Switching ON the appli­ance” on page11.

• There may be a variation between the
temperature delivered from the ap­pliance and the temperature at the
faucet due to water conditions or the
length of pipe from the appliance.

• The presence of a flow restrictor in the
hot water line may Iimit the water flow.

How to use hot water:

• To obtain the desired water temperature at
the faucet or in the shower, mix cold and hot
water.

• Particularly when showering, wait until the
water temperature has stabilized before en­tering or allowing other people or animals to
enter the shower.

5. AquaGo® comfort / AquaGo® comfort plus:

• Select the desired operating mode (refer
to “Operating modes (control panel)” on
page11.

• Close the access door (refer to “Opening
the access door” on page8).

10

Switching ON the appliance

LED 1

LED 2

Rotary switch

Eco

Clean

Operating modes (control panel)

1. Open the access door (refer to “Opening the
access door” on page8).

2. To switch on the appliance, switch the
POWER switch (Fig. 8 – 8) to one of the two
“ON” positions.

Both ON positions on the POWER
switch have the same function. Choose

your preferred position.

• When the green power ON LED 1 (Fig. 8 –

LED 1) is lit, the appliance is switched on.

• If the red error code LED 2 (Fig. 8 – LED 2)

is lit / flashes, there is a fault or warning.
Refer to “APPENDIX A – Error Codes” on
page37).

Power

8

Power

Fig. 8

AquaGo® basic

• The operating mode is set automatically to

“BASIC”.

• The appliance is now ready for use.

• Water temperature at the outlet is approxi-

mately 120°F (49°C).

AquaGo® comfort / AquaGo® comfort plus

A control panel to select the operating mode
(included with the delivery from serial number
DLE60X(X)27100000).

O

LED 3

Fig. 9

With the rotary switch (Fig. 9) you can choose
between the following operating modes:

Sign Operating mode / Description

ECO
The appliance is now running in energy­saving mode.

• Water temperature at outlet is ap­proximately 120°F (49°C).

• Prevention of freezing by using
propane gas. The temperature in
the appliance is automatically kept
above 41°F (5°C) .

• During operation, the yellow status
LED 3 is lit.

COMFORT
The appliance is now running in a
mode that provides rapid availability of
hot water.

AquaGo® comfort / AquaGo® comfort plus

• The appliance is now ready for using the
control panel inside your vehicle. Refer
to “Operating modes (control panel)” on
page11.

• Water temperature at the outlet is
approximately 120°F (49°C).

• Stand-by heat.
The temperature in the appliance
is automatically kept above 102°F
(39°C).

• During operation, the yellow status
LED 3 is lit.

Off Stand-by. The appliance is not running

in any operating mode.

• The yellow status LED 3 is off.

To switch off the POWER and gas
supply (refer to “Switching OFF

the appliance” on page12).

11

Sign Operating mode / Description

ANTIFREEZE
Prevention of freezing using 12 VDC
electricity:

Switching OFF the appliance

1. AquaGo® comfort / AquaGo® comfort plus

– Set the control panel to “Off”.

Operating mode with installed

electric antifreeze kit (available as
an accessory) and appliance switched
on. The temperature in the appliance is
automatically held above 41°F (5°C).

• During operation, the yellow status

LED 3 is lit.

Clean DECALCIFICATION

Only AquaGo® comfort / AquaGo®
comfort plus. See Section “Decalcifi­cation” on page16.

For safety reasons, after 30 sec-

onds the decalcification process
cannot be stopped until the system
has been rinsed in accordance with
the instructions. See “Interrupting
decalcification” on page20.

2. Open the access door (reter to “Opening the
access door” on page8).

3. Switch off the appliance at the POWER
switch (Fig. 8).

– The green Power-ON LED 1 (Fig. 8) extin-

guishes.

4. Close the access door (refer to “Closing the
access door” on page9).

5. If the appliance is not needed, turn off the
gas supply to the appliance.

If you intend to place the RV into stor-

age or turn off the appliance during
freezing temperatures, refer to “Winterizing”
on page13.

Winter operation

Description of the yellow status LED 3

(see Fig. 9 – LED 3)

Signal Meaning

LED 3 lit Appliance is switched ON
LED 3 is off Appliance is switched OFF.

Refer to “Switching OFF the

appliance” on page12.
Every 7 s,
LED3 is inter­rupted for 1 s
LED 3 flashes
slowly 1 s on,
1 s off
LED 3 flashes
quickly

LED 3 flashes
2x briefly af­ter a break.

The appliance must be decal-

cified

Decalcification mode has

been activated

Before you use the water

system you must rinse it (refer

to step f) “Rinsing the water

system” on page 19).

There is a fault in the appliance.

The exact fault diagnosis must

be determined via error LED 2.

Refer to “APPENDIX A – Error

Codes” on page37. Risk of

freezing if the temperature in

the appliance is below 37.4 °F

(3 °C).

Risk of damage in frosty conditions.

In frosty conditions there is a risk that water
in pipes, faucets and appliances could freeze.
This can cause considerable damage.

• Never operate the AquaGo® basic in

frosty conditions, this model must be
winterized (refer to “Winterizing” on
page 13).

• Winter operation will not protect the RV’s
entire water system. Water lines, faucets,
water tanks and the external water valves
and the vehicle must be heated separately.

• The RV must be designed for winter use/
freezing conditions.

• The water pipes in the RV must be ice-free
to operate the AquaGo® comfort / AquaGo®
comfort plus in winter. Otherwise, there is
no water flow and the appliance does not
start.

12

Only AquaGo® comfort / AquaGo®
comfort plus

Winterizing

When the vehicle is standing, to -4°F (-20°C)

• The appliance has a built-in thermostat that
will start the burner and the circulation pump
whenever the temperature in the appliance
falls below 41°F (+5°C). The burner will auto­matically shut off when it senses a temperature
above 111°F (44°C). You must leave the mode
switch in the “ECO” or “COMFORT” position.

• For the appliance to operate prop­erly, you must ensure a constant supply of
power (12 V), propane gas, sufficient water
in the system, and you must leave the appli­ance powered “ON”. The water system must
be bled so that the circulation pump works.

• If the vehicle is standing and ambi­ent temperatures are below -4°F (-20°C), the
appliance must not be operated and must be
winterized. To winterize the appliance (refer to
“Winterizing” on page13).

Severe damage to the water system com­ponents and the appliance!

Any damage caused by freezing or an unsuit­able winterizing fluid will not be covered by
warranty.

• Follow the recommendations below if the
appliance will be stored under freezing con­ditions or for an extended period of time.

• Winterize the appliance at the start of
the winter season or before travelling to
a location where freezing conditions are
likely.

If your RV is equipped with a bypass around
the appliance, separate the appliance from the
water system with the bypass.

Winterizing the appliance

To winterize the appliance, drain all water from
the appliance (“Draining the water and cleaning
the water inlet filter” on page 15).

While driving (or if there is no gas supply),
to -4°F (-20°C)

• Gas must not be used for heating
while the vehicle is in motion. Ask your
dealer / vehicle manufacturer about options
for heating your RV while driving.

• An electric antifreeze kit is available as an
accessory (ask your dealer). With this kit,
the appliance can be kept frost-free while
you are driving or if there is no gas supply
(to ambient temperatures of -4°F (-20°C)).
The electric antifreeze kit includes detailed
instructions.

– While the vehicle is in motion and

at ambient temperatures below -4°F (-20°C)
the appliance must not be operated and
must be winterized. To winterize the appli­ance (refer to “Winterizing” on page13).

Once the water has been drained, the appliance
is protected against freezing conditions.

13

Winterizing the RV with a

AquaGo® technical data

winterizing fluid

• Winterizing the RV with a winterizing
fluid is only possible with an installed
bypass kit (not in scope of delivery)

• Refer to the connection diagram
“Winter operation” on page12 for
all letters referred to in the following
description.

Winterizing AquaGo® basic / AquaGo® comfort

1. Close valves A and B.

2. Open valve C.

3. Drain the appliance (“Draining the water and
cleaning the water inlet filter” on page15).

4. Flush the RV’s water system with a suitable
winterizing fluid according to the supplier’s
or RV manufacturer’s guidelines.

Winterizing AquaGo® comfort plus

1. Close valves A, B and E.

2. Make sure that valve D remains in the closed
position.

3. Open valve C.

4. Drain the appliance (“Draining the water and
cleaning the water inlet filter” on page15).

5. Flush the RV’s water system with a suitable
winterizing fluid according to the supplier’s
or RV manufacturer’s guidelines.

6. Close all faucets (if open).

7. Open valve D.

8. Wait until winterizing fluid has drained.
Collect escaping fluid in a suitable vessel.

9. Close valve D.

14

BTU/h
(Nominal input rate)
Fuel LP gas (propane

Fuel inlet pressure 10.5 – 14 in. wc

Fuel manifold pressure 1.3 – 10 in wc

Nominal voltage 12 V DC (<1Vpp)

Power input

AquaGo® basic < 1.5 A
AquaGo® comfort < 2.5 A
AquaGo® comfort plus < 2.5 A
Water operating pressure 65 psi (4.5 bar)

Standard water outlet
temperature
Water volume 0.35 gallons

Ambient temperature

AquaGo® basic +32°F…+104°F

AquaGo® comfort
AquaGo® comfort plus

Dimensions (without flange and frame)

Width Height Depth

in. 12.5 12.5 15.5

mm 318 318 394

Dimensions of frame

Size XS

in. 15.1 15.5 0.8

mm 384 394 20.2

Standard

in. 17.7 17.7 0.8

mm 450 450 20.2

Adapter

in. 20.1 20.1 0.8

mm 510 510 20.2

Installation cutout and depth

Width Height Depth*

in. 12.8 12.8 17.7

mm 324 324 450

Weight unit without
access door
Weight access door stan­dard and access door XS
Weight access door
adapter kit

* Depending on application
** Recommended

20,000 – 60,000

only)

(26.2 – 34.9 mbar)

(3.2 – 24.9 mbar)

max.
120°F (49°C)

(1.3liter)

(+5°C…+40°C)

-4°F…+104°F
(-20°C…+40°C)

>19.7**

>500**

(approx.)

34.2 lbs (15.5 kg)
(approx.)

2.9 lbs (1.3 kg)
(approx.)

5.5 lbs (2.5 kg)

Maintenance

Repairs must be performed by a certified ser­vice technician. Truma recommends that the
appliance be serviced annually by a certified
service technician. Verify proper operation after
servicing.

High temperatures or repair attempts
while the gas supply is turned on may
result in scalding injuries!

• Turn OFF the electrical power supply and
the LP gas supply before starting mainte­nance and repair work.

• Allow the appliance to cool down.

• Never actuate the pressure relief valve as
long as the appliance is still hot.

6. Leave the hot water faucet open in order to
depressurize and vent the water system.

Injuries caused by the Easy Drain Lever!

When the Easy Drain Lever is folded out,
it protrudes beyond the side wall of the
vehicle.

• When walking past or stooping down,
make sure that you and others have suf­ficient distance.

7. Open the latch with your thumb while pulling
the Easy Drain Lever down as far as it will go.

8. Remove the water inlet filter (or heating
cartridge) as shown in Fig. 10 and rinse it
with clean water.

Injuries caused by the Easy Drain Lever!

• Never actuate the Easy Drain Lever as long
as the appliance is under water pressure
and/or is still hot.

Sharp edges can cause cuts and injury!

• Always wear protective gloves to avoid
injuries from sharp edges during mainte­nance work.

Draining the water and cleaning the
water inlet filter

To keep the appliance fully functional, clean
the water inlet filter at least once a year.

1. AquaGo® comfort / AquaGo® comfort plus

Set the control panel to “Off”.

2. Remove the access door (refer to “Removing
the access door” on page9).

3. Switch OFF the appliance at the POWER
switch.

4. Open a hot water faucet and wait for cold
water.

5. Turn OFF the water supply or switch OFF the
water pump.

9. Inspect the O-rings on the water inlet filter
(or heating cartridge) for cracks. Change
the filter assembly (spare part, refer to “AP­PENDIX C – Spare Parts (all models)” on
page39) if there are cracks.

Danger of crushing/pinching of fingers
when the Easy Drain Lever is closed!

• Never put fingers between Easy Drain
Lever and water inlet filter or latch.

If, during installation, it is difficult to

install the filter cartridge, use a small
amount of soap on the O-rings. Never use
grease because the O-rings are not resistant
to grease.

10. Install the water inlet filter as shown in
Fig. 10. Observe the correct installation
position and close the Easy Drain Lever until
it is locked by the latch.

You can hear a “clicking” sound as the
EasyDrain Lever engages.

11. Insert and close the access door (refer to
“Closing the access door” on page9).

15

Latch

Decalcification

I

II

Easy Drain Lever

Water inlet filter *

Water inlet filter *

Top

O-rings

Risk of damage in frosty conditions.

In frosty conditions there is a risk that water
in pipes, faucets and appliances could freeze.
This can cause considerable damage.

• Do not decalcify the appliance in frosty
conditions.

Decalcification frequency

Lime scale occurs especially as a result of
precipitation from “hard” water. The appliance
must be decalcified regularly depending on wa­ter hardness and hot water consumption.

Recommended decalcification frequency
per year

Very hard
>180

Hard
121 – 180

3

Moderately
hard
61 – 120

Soft

Water hardness

mg/l CaCO

0 – 60

Use* few normal fre-

1 2 4

1 1 3

1 1 2

1 1 1

quent

Latch

* or heating cartridge

Fig. 10

16

* Hot water consumption (approximately)
low 635 gallon/year 2400 l/year
normal 1585 gallon/year 6000 l/year
high 6350 gallon/year 24000 l/year

Decalcification (models without
control panel)

Models AquaGo® basic without control panel:

You can have these models decalcified by
a Truma service partner. Please contact the
following address:

Truma Corp.
825 East Jackson Blvd.
Elkhart, IN 46516
USA
Toll Free 1-855-558-7862
Fax [phone]
[email protected]
www.truma.net

Refer to “Decalcification frequency” on
page16 for the decalcification frequency.

Decalcification (models with
control panel)

AquaGo® comfort / AquaGo® comfort plus

with control panel (included with delivery).

The use of non original Truma AquaGo®
decalcification tablets (e.g. vinegar) for de­calcification can cause chemical reactions
and produce hazardous substances that
could enter the drinking water supply.

• Do not mix Truma AquaGo® decalcifica­tion tablets with other substances to avoid
chemical reactions and production of haz­ardous substances.

• Only use Truma AquaGo® decalcification
tablets to decalcify the appliance to avoid:

– chemical reactions and production of

hazardous substances,
– damage to your appliance,
– and the voiding of your warranty.
– Call your local AquaGo dealer or ser-

vice provider or see www.truma.com

for more information to obtain

Truma AquaGo® decalcification tablets.

Irritation of skin and eyes in case of
contact with decalcification agent

Wear protective gloves, eye protection and
face protection to avoid contact.

An integrated water consumption meter rec­ognizes (after hot water consumption of ap­prox. 1585 gallons / 6000 l) that decalcification
is necessary. The assumed water hardness is
“hard” and cannot be changed. The yellow
status LED3 (Fig. 9) indicates that decalcifica­tion is necessary (goes off briefly about every
7 seconds).

• Never use the water supply in the RV during
decalcification

• In case of skin contact with the decalcifica­tion agent, immediately rinse the affected
area with plenty of water.

• In case of eye contact, hold eyelid open and
rinse with running water for 10 – 15min.
Remove contact lenses, if present and easy
to do. Continue rinsing. Consult an eye
specialist.

• If you swallow the decalcification agent,
immediately rinse your mouth and drink
plenty of water in small sips. Do not vomit.
Consult a doctor.

17

During decalcification, you must also ob­serve the following

• Damage to the appliance if decalcification is
interrupted.

– You must complete the decalcification

process and then rinse thoroughly with
clean water.

– Allow about 3 hours for decalcification.

The appliance works on its own for most
of this time.

• Sensitive surfaces (e. g. marble) may be
damaged through contact with the decalcifi­cation agent.

– Immediately remove splashes of decalcifi-

cation agent on these surfaces.

a) Preparing for decalcification

b) Draining the water system

Tasks outside the RV

• Remove the access door (refer to “Remov­ing the access door” on page9).

• Switch OFF the appliance at the POWER
switch.

• Drain the water system and remove the
water inlet filter. Do do this, refer to “Drain­ing the water and cleaning the water inlet
filter” on page15, Steps 4 to 8.

You must use the water inlet filter
for decalcification (included with the delivery
Fig. 1 – 11a). If you are using an electric anti­freeze kit, it must be removed and be un­plugged from the power supply before decal­cification (see Fig. 11).

For safety reasons, once the decalcifica-

tion process has started it must not be
stopped until the system has been rinsed (see
process f). All operating modes of the appliance
are blocked until decalcification has been com­pleted.

Tasks within the RV

• Set the control panel to “Off”.

• Turn OFF the water supply or switch OFF
the water pump.

• Open a hot water faucet to relieve pressure
in the system.

• On all water faucets attach the warning
sign “Caution decalcification in progress” in
a clearly visible position. Warning signs are
enclosed with the decalcification tablets.

Fig. 11

18

c) Introducing the decalcification agent

6 x

e) Starting decalcification

Tasks outside the RV

• Irritation of skin and eyes
in case of contact with decalcification
agent. Wear protective gloves, eye protec­tion and face protection to avoid contact.

• Fill the water inlet filter with 6 Truma
AquaGo® decalcification tablets (content of
one blister pack).

Fig.12

• Re-insert the water inlet filter. See Step 9 in
“Draining the water and cleaning the water
inlet filter” on page15.

• Switch ON the appliance at the POWER
switch.

Tasks within the RV

• Set the control panel to “Clean”.
– If decalcification does not start, switch the

appliance on at the POWER switch.

f) Rinsing the water system

• You will need about 8 gallons of water
to rinse the water system.

• Dispose of (used) decalcification solu­tion in accordance with local laws and
regulations.

Tasks within the RV

• Open all water-release points, e.g., hot wa­ter faucets, showers, toilets.

• Run the water until the status LED 3 (Fig.9)
on the control panel goes out.

• Set the control panel to “Off”.

d) Filling the water system

Tasks within the RV

• Turn on fresh water supply or switch on
water pump

The decalcification tablets dissolve in

water quickly (approx. 10 minutes). So
that the decalcification agent is not rinsed
out, when filling, run the water only as long
as necessary. The Truma decalcification tab­lets color the water slightly red.

• Fill the water system.
– Open all water-release points, e.g., hot

water faucets, showers, toilets.

– Once water flows uniformly, the water

system is vented.

– Close the water-release points.

• Close all water-release points.

• Turn OFF the water supply or switch OFF
the water pump.

• Open a hot water faucet to relieve pressure
in the system.

To make sure that the appliance and the

water pipes contain no decalcification
agent, empty the water system again and
refill it.

You must bleed the water system thor­oughly otherwise the circulation pump can-

not circulate the decalcification solution.

19

Tasks outside the RV

• Switch the appliance OFF at the POWER
switch (red error code LED 2 (Fig 8) flashes
before it switches off).

Interrupting decalcification

Decalcification is indicated through slow
flashing (1s on, 1s off) of the status LED 3

(Fig. 9) on the control panel.

• Drain the water System (refer to “Drain­ing the water and cleaning the water inlet
filter” on page15, steps 4. to 8.).

• Install the water inlet filter* referring to step9.

* or antifreeze cartridge if electric antifreeze

kit is installed.

• Switch ON the appliance at the POWER
switch.

• Insert and close the access door (refer to
“Closing the access door” on page9).

You have to switch the appliance off and
on to unblock decalcification and enable

further operation.

• Decalcification can be interrupted by switch­ing the control panel to “Off”.

– Decalcification is interrupted after about 2 s.
– The status LED 3 (Fig. 9) on the control

panel flashes quickly.

• Irritation of skin and eyes in
case of contact with decalcification agent.
Wear protective gloves, eye protection and
face protection to avoid contact.

• First you must take out the water inlet filter
and remove any Truma AquaGo® decalcification
tablets that it may contain.

– To take out the water inlet filter, see

“Draining the water and cleaning the wa­ter inlet filter” on page15.

– Dispose of Truma AquaGo® decalcification

tablets in accordance with local laws and
regulations.

g) Filling the water system

Tasks within the RV

• Turn on fresh water supply or switch on
water pump.

• Fill the water system.

– Open all water-release points, e.g., hot

water faucets, showers, toilets .

– Once water flows uniformly, the water

system is vented.

– Close the water-release points.

• Before you use the water system and the
appliance, check the color of the water at
all faucets:

– Slightly red –> rinse again.
– Clear –> decalcification is finished.

• Remove the warning signs “Caution decal­cification in progress”.

• Before you use the water system again, you
must rinse it (see step f) “Rinsing the water
system” on page19) and fill it with water
(see step g) “Filling the water system” on
page20).

20

Accessories

Electric antifreeze kit *

Truma offers an electric antifreeze kit (part no.
77400-01) that keeps the appliance frost-free
to -4 °F (-20 °C) while you are driving or if there
is no gas supply. To operate the kit, you need
a 12VDC (120W) power supply from the ve­hicle’s on-board system. Ask your dealer.

* For AquaGo® comfort / AquaGo® comfort plus.

Truma AquaGo® decalcification tablets

Truma offers decalcification tablets (part no.
77300-01) to decalcify AquaGo® comfort /
AquaGo® comfort plus.

Truma rear installation gas connection kit

Truma offers a rear installation gas connection
kit (part no. 77000-37500) if installation from the
back of the appliance is required.

Truma AquaGo® Comfort upgrade kit

Truma offers a kit (part. no. 77000-00005) to up­grade from AquaGo® basic to AquaGo® comfort.

21

Troubleshooting

Problem Potential cause Resolution

No hot water at
the faucet

Gas supply is turned off or inter­rupted.

Gas tank is empty. Refill/replace the gas tank.
The appliance is switched off. Switch on the appliance according to

Fresh water supply is turned off. Open the fresh water supply.
Power supply to the appliance is

switched off.
Defect in the appliance. LED 2 blinks red (refer to “APPENDIX A –

Boiling noises Too much lime scale in the Truma

AquaGo® instant water heater.

Hot water tem­perature too low.

Gas flow to the appliance is too low
(gas inlet pressure < 10.5 in. wc).

Check and/or turn on gas supply.

instructions (refer to “Operating proce­dures” on page10).

Switch on power supply to the appliance.

Error Codes” on page37) and contact
a certified service technician if necessary.

The appliance must be decalcified (refer
to “Decalcification” on page16).

Consult vehicle documentation to
determine if gas supply is capable
of providing the necessary vol­ume of gas for the appliance.

Volume flow of hot water is too
high and/or the temperature of cold
water reaching the appliance is too
low.

Too much lime scale in the appli­ance.

Contact a service technician to ver­ify a suitable gas installation.

Turn down hot water at the faucet or in
the shower in order to reduce volume
flow.

Potentially retrofit a volume flow throttle
into the water system. This must be per­formed only by a certified service techni­cian.

The appliance must be decalcified (refer
to “Decalcification” on page16).

22

Problem Potential cause Resolution

Water escaping
at pressure relief
valve.

Water pressure in water system too
high.

Water cannot expand in the water
system.

Lime or dirt under the pressure
relief valve seat.

Adjust the water pump pressure to a
maximum of 65 psi (4.5 bar).

If the water system is connected to a cen­tral water supply higher than 65 psi (4.5bar)
(rural or urban connection), a pressure
reducer must be used.

Install a pressure reducer (e.g. Truma
pressure reducer) at the fresh water
supply.

Contact the vehicle manufacturer about
retrofitting a pressure compensation ele­ment.

Allow the appliance to cool and then
slowly raise the test lever (Fig. 3 – 4a)
to flush the water system and attempt
to force dirt or foreign matter out of the
pressure relief valve seat.

Water escaping

Lime or dirt under the O-ring seats. Clean the O-rings and their correspond­at the water inlet
filter

AquaGo® comfort / AquaGo® comfort plus

The yellow status

Power switch is OFF. Switch ON the appliance at the POWER
LED 3 is off al­though an oper­ating mode was

Power supply to the appliance is

switched off.
selected.

Power supply was interrupted. Reset by switching OFF at the con-

Replace pressure relief valve. This must
be performed only by a certified service
technician.

ing sealing surfaces with clean water.

switch.
Switch on the power supply to the appli-

ance.

trol panel, waiting 2 seconds and then
switching on again.

23

TRUMA Gerätetechnik GmbH & Co. KG
(“TRUMA”)

“AquaGo” MANUFACTURER
LIMITED WARRANTY

(September 2014)

This limited warranty pertains solely to the
“AquaGo” (the “Product”) manufactured by
TRUMA and sold through its affiliates and deal­ers in North America.

TRUMA warrants subject to the below stated
conditions that the Product will be free from
defects in material and workmanship, and will
perform in accordance with the technical speci­fications set forth in the description of the Prod­uct for a period of twelve (12) months for newly
manufactured parts from the original date of
purchase. The original purchaser is advised to
register the Product within two (2) months of
purchase with www.truma.net in order to
receive an extended warranty of an additional
twelve (12) months. This limited warranty shall
only apply if the Product was properly installed
according to the installation instructions provid­ed and in compliance with applicable codes.

During the warranty period, TRUMA will repair
or replace, at its own discretion and costs, the
defective Product or parts or components of
such Product reported to TRUMA and which
TRUMA determines was defective due to a war­ranty defect. Costs of diagnosis for a warranty
defect are borne by TRUMA. Other costs of di­agnosis are not included in this warranty. At the
discretion of TRUMA, the replacement of the
Product or parts or components thereof (i) may
be newly manufactured, (ii) may be assembled
from new or serviceable used parts that are
equivalent to new parts in performance, or (iii)
may have been previously installed.

This limited warranty does not cover any de­fects attributable in whole or in part to (i)
non-TRUMA products and services and / or
alterations of out-of-specification supplies, (ii)
accidents, misuse, negligence or failure of the
customer to follow instructions for the proper
use, care and cleaning of the Product, (iii) dam­ages caused in gas pressure regulation systems
due to foreign substances in the gas (i.e. oil,
plasticizers), (iv) external factors (e.g., fire, flood,
severe weather), (v) failure of proper transport
packaging, or (vi) failure by the purchaser to
comply with TRUMA’s installation and user
manual regarding the Product.

All warranty claims must be reported to
TRUMA’s authorized warranty service center in
the United States: Truma Corp Service Center,

825 East Jackson Blvd., Elkhart, IN 46516,
toll free: [phone], fax. [phone],

[email protected], www.truma.net

The purchaser shall provide the following
information regarding the potential warranty
claim (i) serial number of the defective device,
(ii) proof of purchase, (iii) purchaser’s contact
information.

EXCEPT AS EXPRESSLY STATED AND SET
FORTH HEREIN, THERE ARE NO WARRAN­TIES OR REPRESENTATIONS, EXPRESS OR
IMPLIED, CONCERNING THE PRODUCT
AND NO SUCH WARRANTIES OR REPRE­SENTATIONS SHALL BE IMPLIED UNDER
ANY APPLICABLE LAW, IN EQUITY OR
OTHERWISE, INCLUDING WITHOUT LIMI­TATION, A WARRANTY OF MERCHANT­ABILITY, A WARRANTY OF FITNESS FOR
A PARTICULAR PURPOSE, OR ANY OTHER
WARRANTY WHICH MAY BE IMPLIED UN­DER COMMON LAW OR UNDER THE UNI­FORM COMMERCIAL CODE OF ANY STATE
OR OTHER JURISDICTION OF THE UNITED
STATES OF AMERICA.

The customer shall not attempt to repair
the Product or resolve the problem without
the prior consent of TRUMA. Any attempt
by the customer to repair the Product or
resolve the problem without the prior con­sent of TRUMA will void this warranty.

24

Unless further limited herein, the entire liability
of TRUMA and the customer’s exclusive remedy
for damages from any cause related to or
arising out of a warranty defect, regardless of
the form of action, whether in contract or in
tort, will not exceed the amount of the purchase

price for each purchase order for the Product
which is the subject matter or directly related to
the causes of action asserted.

Unless prohibited under applicable state law,
in no event will TRUMA, its agents, subcon­tractors, affiliates, suppliers and employees be
liable for (a) any incidental, indirect, special or
consequential damages, including, but not lim­ited to, loss of use, revenue, profits or savings,
substitute rental or for any other reason, even if
TRUMA knew or should have known of the pos­sibility of such losses or damages, (b) claims,
demands or actions against the customer by any
person, except as provided by applicable law.

Installation Instructions

Read, observe, and follow these safety
instructions to avoid injuries during instal­lation or operation.

Safety behavior and practices

• Installation and service must be performed
by an authorized Truma recommended in­staller, service agency, or OEM. Improper in­stallation, alteration, service, or maintenance
can cause property damage, personal injury,
or loss of life.

– Do not attempt installation as a Do-it-

Yourself project.

• Install in recreational vehicles (RVs) only.

– Install the appliance on an exterior wall,

with the access door opening to the
outside.

– Install the appliance in the shown orien-

tation.

• Switch off the vehicle’s on-board power sup­ply during installation and when connecting
the appliance.

• Close the vehicle’s gas supply during instal­lation and when connecting the appliance.

• Always wear protective gloves to avoid inju­ries from sharp edges during installation and
maintenance work.

• Handle the appliance only by lifting or grab­bing the metal casing or cover plate. Never
lift or grab the appliance by any of its deli­cate interior components.

• Make sure that all combustion air is supplied
from outside the RV. DO NOT draw air for
combustion from occupied spaces.

25

• Make sure that all exhaust gases are direct­ed outside of the RV.

– Protect building materials from exhaust

gases.

– Never direct the exhaust gases to any out-

door enclosed spaces, such as a porch.

Selecting a suitable location

The appliance is designed to be installed on a
floor or a fixed platform with access to water.
Electrical connections are established at the
back. Gas access is from the side or from the
rear.

• Any alteration to the appliance or its controls
can cause unforeseen serious hazards and
will void the warranty.

• DO NOT alter the appliance for a positive
grounding battery system.

• DO NOT shorten the power cable or remove
the sticker that indicates polarity.

• DO NOT perform a hi-pot test on the appli­ance unless the electronic ignition system
(circuit board) has been disconnected. A
hi-pot test applies a very high voltage be­tween two conductors.

• DO NOT use a battery charger to supply
power to the appliance, even when testing.

• If the vehicle requires welding, DO NOT con­nect the 12 V DC power to the appliance.
Electrical welding will cause serious damage
to the appliance controller.

United States and CANADA

This appliance must be installed in accordance
with local codes or, in the absence of local
codes, the Standard for Recreational Vehicles,
ANSI A119.2/NFPA 501C or CAN/CSA-Z240 RV.

The appliance is designed exclusively for instal­lation on an outside wall of a RV.

Installation of the water heater on the back
of a trailer is not advised because of high

pollution caused, e.g., by dirty and wet roads.

Risk of poisonous exhaust gases due to
improper installation!

• Make sure that the appliance is installed as
described below.

• DO NOT install the appliance in any location
where the vent may be covered or obstruct­ed when any door on the RV is opened or
due to the design of the RV or due to special
features of the RV such as slide-out, pop-up,
etc.

• DO NOT install on a swing door.

• DO NOT install the appliance under any
window, slide-out or opening into the RV in
order to prevent exhaust gases from entering
the RV.

• DO NOT install the appliance in such a way
that the cover plate is less than

– 1 foot (30 cm) from each side and top of

any window, slide-out or opening into the
RV,

– 6 feet (1.8 m) from any mechanical air

supply inlet or

– 3 feet (91 cm) from any gas tank connec-

tion or ventilation.

26

• Maintain a minimum clearance from com­bustible materials on sides, top, floor and
rear (0in.).

• Provide room for access to rear of appliance
for servicing.

Preparing for installation

a

Sharp edges can cause cuts and injury!

• Always wear protective gloves to avoid in­juries from sharp edges during installation
work and while handling the appliance.

Preparing the installation site

1. Make sure that the appliance is in contact
with the vehicle floor or a platform with
adequate weight-bearing capacity when
installed.

2. To install on a carpeted area, install a metal
or wood panel under the appliance that
extends at least 3 in. (7.6 cm) beyond the
width and depth of the appliance.

• The required depth “c” depends on
how the water hoses, electrical con­nection cable, and gas line are instal­led. The depth “c” must be determined
for the particular situation before
installation.

• The corners of the rough opening
must be at right angles. The exterior
wall opening must be the same di­mensions with no rounded corners.

• An access door adapter kit is available
for replacing existing water heaters,
with a large cut-out in the outer wall of
the RV. The adapter plate must be in­stalled before the appliance is installed.
The access door adapter kit includes
detailed installation instructions.

5. Make sure you have suitable screws ready:

3. If escaping water may damage components
or the vehicle, install a collection pan below
the appliance. Direct the flow of water from
the pan to outside the vehicle.

4. Make sure that the front edge of the open­ing is surrounded by a solid frame to firmly
anchor the appliance. If needed, build an ap­propriate frame (Fig. 13) with the following
dimensions:
Width a = 12.75 in. (324 mm)
Height b = 12.75 in. (324 mm)
Depth c = >17.7 in. (450 mm)

c

Top

b

• Without access door adapter kit

In order to securely fasten the appliance and
the cover plate, the screws must be suitable
for the chosen frame material and have a
diameter of 0.138 in. (#6) to 0.164 in. (#8).

– Never use countersunk screws

to secure the cover plate, as it will be
damaged (tear). Use pan head screws.

– For the length of the screws follow the

screw manufacturer’s guidelines.

• With access door adapter kit

You must use the 22 screws 0.164 (#8) x

0.51 in. (4.2 x 13 mm) that are included with
the access door adapter kit.

– 14 x for fixing: appliance with adapter plate.
– 8 x for fixing: cover plate with adapter plate.

Fig. 13

27

Preparing the gas connection

Risk of explosion due to improper instal­lation of the gas connection!

• Make sure that the operating pressure
of the gas supply corresponds to the
operating pressure of the appliance

10.5 – 14 in. wc (26.2 – 34.9 mbar).

For correct installation, you must also ob­serve the following:

• The gas connection (SAE 45° Flare Male –
SAE J512, 5/8 in. – 18) is located inside the
appliance.

• Make sure that the gas line to the appliance is
able to supply the maximum required quan­tity of gas (≥ 60,000 BTU/h), without the gas
pressure on the gas connector of the appli­ance falling below 10.5 in. wc (26.2 mbar).

• Consider the space needed to lay the gas
line and integrate the appliance when plan­ning the installation space.

• Guide the gas line into the installation space
so that the appliance may be removed and
reinstalled if service or repairs are needed.

• Allow sufficient length and flexibility in the
gas line for connection or disconnection of
the gas line.

• Reduce the number of separation points in
the gas line to the technically required num­ber.

– Gas side connection

Risk of explosion due to improper instal­lation of the gas side connection!

• Use rigid metal 3/8 in. pipes (complies to
1/2 in. (12.7 mm) outside diameter) for the
side gas connector of the appliance to the
gas system of the RV.

• In exceptions, flexible gas hoses may be
used for the side gas connector. The fol­lowing 4 conditions must be met:

1. Guidelines, laws or regulations allow the

use of flexible gas hoses in this applica­tion.

2. The flexible gas hoses are certified for

this type of application.

3. The flexible gas hoses can be inspected

easily over their entire length.

4. New flexible gas hoses are used for the

installation.

The gas line is guided into the appliance from
the side. A hole with a gas pipe grommet (side)
is provided in the unit casing for this purpose.

• Slide the appliance carefully into the installa­tion space until the installation frame makes
contact.

• Make sure that the gas line connects verti­cally with the appliance’s gas connection
and without tension.

• If the connection is OK, push the gas line
back. It will be connected in a later step.

Top

• Avoid separation points in the gas line in
spaces used by people.

• Ensure that the gas connection from the
vehicle is in place before installing the appli­ance.

28

Side

Gas supply line

Gas pipe grommet (side)

Fig. 14

– Gas rear connection

Risk of explosion when using flexible gas
hoses with a gas rear connection.

• Flexible gas hoses can leak due to the high
temperatures in the appliance.

• You must use rigid metal 3/8 in. pipes
(complies to 1/2 in. (12.7 mm) outside dia­meter) for a gas rear connection.

Truma offers a rear installation gas connection
kit (part no. 77000-37500) if installation from the
back of the appliance is required.

Scope of delivery:

– A brass elbow with a 45° SAE flare style

fitting,
– a plug,
– a gas pipe grommet (rear) and
– a cable tie are included.

Top

Preparing the water connection

All water connections on the appliance are
1/2 in.NPT male connections.

• Use only pressure pumps in the water
system, not immersion pumps, as air
in the water system could cause mal­functions.

• The network of lines must be planned
before installation (refer to “Connec­tion diagrams” on page31).

• Keep the length of the water pipes as
short as possible.

• Because of the risk of frost, install
water pipes only in adequately heated
areas of the RV.

• Avoid thermal bridges.

• Install water pipes in a rising direction
so that air in the pipes can escape.

• For AquaGo® comfort plus
Protect the circulation line against
heat loss with sufficient insulation
material.

Rear

Side

Gas pipe grommet
(side)

Gas pipe grommet
(rear)

Gas supply line
Rigid (metal) 3/8 in. pipe

Fig. 15

• Open the pre-punched hole on the rear side
of the appliance.

• Insert the gas pipe grommet (rear) in this
hole (pay attention to the direction).

Rear

I II

Fig. 16

• Use a suitable connector with a seal for
establishing the water connection to the ap­pliance.

• Use of flexible water hoses of at least
1/2 in.diameter is preferred.

• Make sure that all water hoses are installed
without kinks.

• Make sure that the water connections from
the vehicle are in place before installing the
appliance.

29

Preparing the 12 V DC electrical
connection

All electrical connections must be made in
compliance with all national, regional or lo­cal electrical codes.

Risk of a short circuit and hazardous situ­ations due to improper installation of the
electrical connection!

• Use only insulated terminals for all electri­cal connections.

• The positive line must be fused with a 7.5A
fuse near the battery’s positive terminal.

• The power supply cable must have a diam­eter of at least:

– 16 AWG (1.5 mm² MWG) for up to

40 ft (12 m) length (bidirectional)

– 14 AWG (2.0 mm² MWG) for up to

66 ft (20 m) length (bidirectional)

• Establish the 12 V DC electrical connections
according to the connection diagram see
“Electrical connection for all models” on
page31.

• To ensure reliable operation:

– Provide a constant voltage supply.
– Filter any AC spikes or voltage surges.
– The AC voltage ripple must not exceed

1 Vpp.

Mounting the control panel

Only AquaGo® comfort /
AquaGo® comfort plus

• Damage to the control panel
from wetness and moisture. You must

install the control panel at a place inside the
RV that is protected against moisture and
wetness.

• Install the control panel (Fig. 17- 27) where it
can be seen easily.

– A 9 m control panel cable (27a) is includ-

ed with the delivery.

• Drill a 2 1/8 in. (54 mm) diameter hole.

• Insert the plug (27b) on the control panel (27)
until it clicks into place.

• Clamp the control panel cable (27a) in the
cable duct of the control panel.

• Damage to the control panel
cable at temperatures above +60 °C. Do
not install the control panel cable on or fix it
to hot components.

• Slide the control panel cable to the back and
lay it to the appliance.

• Fix the control panel with 4 screws (27d).

• Make sure that the electrical connections
from the vehicle are in place before installing
the appliance.

30

• Install the cover frame (27e).

Ø 2 1/8 in.
(54 mm)

27a

27c

27b

27

27d

Fig. 17

27

27b

27e

Connection diagrams

• The drawings are not intended to describe a complete system. It is up to the certified service technician to determine the neces­sary components for and configuration of the particular system being installed (for example an additional surge protector).

• The drawings do not imply compliance with state or local code requirements or regulations. It is the certified service technician’s
responsibility to make sure that the installation is in full compliance with all state or local code requirements or regulations.

Model AquaGo® basic / AquaGo® comfort

Top

Hot Water
Outlet

A*

Faucet 1 Faucet 2 Shower

Instant
Water Heater

Gas side connection

Cold Water
Inlet

Gas rear connection

B*

Fig. 18

Model AquaGo® comfort plus

Top

Hot Water
Outlet

E*

Instant
Water Heater

Gas side connection

Circulation
Line Inlet

Cold Water
Inlet

Gas rear connection

C* D*

B*

Fig. 19

A*

C*

Drain Line

* Bypass kit for winterizing (not in scope of delivery)

Maximum pressure 65 psi (4.5 bar)

LP gas supply (propane only)
Inlet pressure 10.5 - 14 in. wc (26.2 - 34.9 mbar)

Faucet 1 Faucet 2 Shower

* Bypass kit for winterizing (not in scope of delivery)

Maximum pressure 65 psi (4.5 bar)

LP gas supply (propane only)

Inlet pressure 10.5 - 14 in. wc (26.2 - 34.9 mbar)

Electrical connection for all models

Maximum length of the power supply cable (including cables for the optional switch):

• for 16 AWG or 1.5 mm² MWG: max. 40 ft (12 m) (bidirectional)

• for 14 AWG or 2.0 mm² MWG: max. 66 ft (20 m) (bidirectional)

Optional:

Instant
Water Heater

Fig. 20

Switch ON - OFF
(Rating: ≥ 7.5 A)

+

-

12 V DC
Ripple < 1 V

Control
Panel * /
Diagnosis

+

7.5 A

pp

12 V DC
Power
Supply

-

* only AquaGo® Comfort and
AquaGo® Comfort Plus

31

Installing the appliance

Before installation, read “Preparing for in­stallation” on page27 and the following.

Sharp edges can cause cuts and injury!

• Always wear protective gloves to avoid in­juries from sharp edges during installation
work and while handling the appliance.

• Slide the appliance carefully into the installa­tion space until the installation frame makes
contact.

• Make sure that the unit casing corners are
90 degrees square so that the cover plate/ac­cess door fits properly.

90 degrees

14 x

Fig. 22

• Damage to the appliance and/
or the RV! Do not use adhesive sealing ma-

terial (e.g. silicone) for the watertight seal.
Otherwise damage may occur when the ap­pliance is moved during servicing.

• The appliance must be installed with a wa­tertight seal with the outer skin of the ve­hicle.
To achieve the watertight seal:

– Pull the appliance out ≈ 2 in. (5 cm).
– Apply an adequate amount of watertight

sealing material to the entire flange area
of the installation frame and at the cor­ners, see gray marking in Fig.21.

– Slide the appliance carefully into the

installation space until the installation
frame makes contact.

• Immediately remove all excess sealing mate­rial.

• Risk of death from poison-

ing and significant damage to the RV
due to exhaust gas and leaking water!

– Make sure that there is a tight seal and

that no exhaust gas or water can enter
the RV.

• Check and make sure that there is a tight seal.

• Fasten the cover plate to the appliance (see
Fig.23):

– Position the cover plate.
– Screw the cover plate only loosely.

Start with screw 1.
– Align the cover plate.
– Uniformly tighten all 8 screws.

1

Fig. 21

• Screw the appliance into the vehicle’s frame
with the prepared 14 screws. See 5. “Make
sure you have suitable screws ready:” on
page27.

32

8 x

Cover plate

Fig. 23

Top

Gas connection

2

3

1

Fig. 24

• Damage to the appliance and

the connections!

– Make sure that no gas lines, water hoses

or electrical lines are kinked or pinched.

– When establishing the water connections,

observe the installation instructions and
torques specified by the manufacturer.

• Connect the hose for cold water (1) at the
bottom of the appliance.

• Connect the hose for hot water (2) at the top
of the appliance.

Risk of explosion or poisoning due to
improper installation!

• Permit only a certified service technician
to perform installation.

• Make sure that the manual shut-off valve
in the gas line of the appliance is closed.

• Make sure that the gas line is centered
and tension-free when it enters the grom­met so that the gas line will not abrade
the grommet.

• Make sure that the gas line has an
SAE 45° Flare Female connector.

Additional rules for the appliance gas con­nector.

• Make sure that the gas line is free of dirt,
chips, etc.

• Never use pipe dope on a flare fitting. The
flare fitting is a dry seal.

• Model AquaGo® comfort plus only:
Connect the hose for the circulation line (3).

• Check all connections for water leaks.

– Repair leaks as needed.
– Repeat check for water leaks and take

any necessary steps to repair the leaks at
all water connections.

• Connect the electrical lines with the proper
polarity to the 12 V DC power supply. Refer
to “Electrical connection for all models” on
page31). Install a 7.5 A fuse (see Fig. 20).

Top

12 V DC

+ red

Connecting the gas line (gas side
connection)

• Only AquaGo® comfort /

AquaGo® comfort plus (with control panel)

– Feed the control panel cable (approx.

10 in. (25 cm)) from outside through the
gas pipe grommet (side).

– Attach the control panel cable to the con-

trol unit.

– Hook the control panel cable on to the clip.

• Guide the prepared gas line through the gas
pipe grommet (side).

• Screw the gas line’s union nut (wrench size
3/4 in. (19 mm)) onto the appliance’s gas
connection so it is finger-tight.

– black

Fig. 25

33

Connector

SAE 45° Flare Female

Connecting the gas line (gas rear
connection)

• Remove the gas pipe grommet (side).

Clip

Control panel cable

LP gas supply

Fig. 26

• Gas valve may be damaged
during tightening! Use a second wrench to

counterhold at the square end (wrench size
11/16 in. (18 mm)).

• Use a torque wrench to tighten the union nut
(nominal torque 15 lb-ft (20 Nm)).

• Risk of poisoning and/or
explosion! Improper tightening of the cable
tie could result in gas/exhaust entering the RV.

• Close the cable tie so that the gas pipe
grommet (side) tightens the gas pipe pas­sage (see Fig. 27).

A cable tie is provided with the appliance.
You will find it fixed to the gas valve.

Control panel cable *

Cable tie

• Slide the prepared gas pipe through the gas
pipe grommet (rear) from behind so that the
elbow fitting can be mounted.

Gas pipe grommet
(side)

Fig. 28

• Gas line may be damaged dur­ing tightening! Use a second wrench to

counterhold at the square end (wrench size
9/16 in. (14 mm)).

• Mount the elbow union (45° SAE flare style)
on the gas pipe in the direction shown (see
Fig. 29).

• Use a torque wrench to tighten the union
nut (nominal torque 15 lb-ft (20 Nm)) (brace
against the elbow union with wrench size
9/16 in. (14 mm)).

SAE 45° Flare Male
SAE J512, 5/8 in. -18

SAE 45° Flare Female
SAE J512, 5/8 in. -18

* AquaGo® comfort / AquaGo® comfort plus

Fig. 27

34

Gas pipe
grommet (side)

Fig. 29

• Screw the gas line’s union nut (wrench size

Connector

Control panel cable

3/4 in. (19 mm)) onto the appliance’s gas
connection so it is finger-tight.

• Gas valve may be damaged
during tightening! Use a second wrench to
counterhold at the square end (wrench size
11/16 in. (18 mm)).

• Use a torque wrench to tighten the union nut
(nominal torque 15 lb-ft (20 Nm)).

– Fix the side gas pipe grommet to the con-

trol panel cable with a cable tie.

A cable tie is provided with the appliance.
You will find it fixed to the gas valve

– Attach the control panel cable to the con-

trol panel.

– Hook the control panel cable on to the clip.

• Only AquaGo® basic (without control

panel):

– Close the side hole with the plug.

Plug

Fig. 30

• Only AquaGo® comfort / AquaGo® com­fort plus (with control panel)

– Damage to the control panel

cable at temperatures above +60 °C.

Do not install the control panel cable
through the rear gas pipe connection. You
must feed the control panel cable through
the hole on the side.

Control unit

Clip

Gas pipe grommet
(side)

Control panel cable
length 25 cm

Fig. 31

– Install the side gas pipe grommet with

the control panel cable in the side hole.

Gas pipe
grommet
(side)

Fig. 32

– Slide the side gas pipe grommet on to the

control panel cable (bush points towards
hole). The control panel cable must pro­trude by about 25 cm.

– Risk of poisoning and/

or explosion! Improper tightening of the
cable tie could result in gas/exhaust en­tering the RV. Close the cable tie so that
the side gas pipe grommet tightens the
control panel cable passage.

35

Checking for gas leaks

Functional check

Risk of death and personal injury through
fire and/or explosion!

• DO NOT use matches, candles or other
sources of ignition when checking for gas
leaks.

• After the gas supply is connected, check
for gas leaks at all gas connections. Use a
gas leak detection liquid.

1. Turn OFF the electrical power supply

2. Damage to the appliance from
test pressure higher than 60 in. wc
(150mbar). Ensure that the test pres­sure is lower than 60 in. wc (150 mbar).

3. Turn on the gas.

4. Check the appliance and all gas connections
for gas leaks with leak detection liquid.

– Bubbles indicate a gas leak that must be

repaired.

1. Bring the appliance into operation (refer to
“Starting the appliance” on page9).

2. Check the appliance for proper functionality.

If faults occur during operation of the
appliance, refer to “Troubleshooting” on

page22.

3. Provide operating and installation instruc­tions to the vehicle owner.

The appliance is now ready for normal operation
and use.

5. Repair gas leaks as needed.

6. Repeat check for gas leaks at all gas connec­tions.

36

APPENDIX A – Error Codes

If the appliance malfunctions, LED 2 (refer to “Overview / Designation of parts” on page2) will blink to indicate the malfunction.
There are short and long intervals of blinking. The blinking will repeat every 3 seconds.

1. Write down the blinking intervals and check the list below.

2. Reset the appliance:
– Switch off the appliance. / – Wait 5 seconds / –Switch the appliance on again.

3. If an error code is still displayed, contact an authorized Truma service center.

Error

Blink code

code

s =short = 0
l = long = 1

1 s,s,s,s,s,s,s,l Flame not detected There is a flame-detection error at the burner because the flame was not de-

2 s,s,s,s,s,s,l,s Error at over temperature

3 s,s,s,s,s,s,l,l Error at exhaust pressure

4 s,s,s,s,s,l,s,s Error at water over tem-

5 s,s,s,s,s,l,s,l Flame detected at incor-

6 s,s,s,s,s,l,l,s Error in the safety circuit

7 s,s,s,s,s,l,l,l Error of burner MCU

9 s,s,s,s,l,s,s,l Malfunction of water

10 s,s,s,s,l,s,l,s Error in the safety circuit There is a heating request but gas is not released because a valve-actuation

11 s,s,s,s,l,s,l,l Error of MCU watchdog

12 s,s,s,s,l,l,s,s Internal error
13 s,s,s,s,l,l,s,l Short circuit shut-off valve Short circuit detection in the gas valve (shut-off part) detected a current

16 s,s,s,l,s,s,s,s Malfunction of the MCU Internal error of the control unit.
20 s,s,s,l,s,l,s,s Malfunction of water inlet

21 s,s,s,l,s,l,s,l Malfunction of circulation

22 s,s,s,l,s,l,l,s Malfunction of gas valve,

23 s,s,s,l,s,l,l,l Voltage is too high The main power supply’s voltage detector measured a voltage level of >16.4 V.
24 s,s,s,l,l,s,s,s Voltage is too low The main power supply’s voltage detector measured a voltage level of <10 V.
25 s,s,s,l,l,s,s,l Flue fan current con-

26 s,s,s,l,l,s,l,s Circulation pump current

27 s,s,s,l,l,s,l,l Water circulation pump is

28 s,s,s,l,l,l,s,s Too low gas pressure. Gas supply (in vehicle) to the appliance insufficient.
29 s,s,s,l,l,l,s,l Too high heat power

30 s,s,s,l,l,l,l,s Risk of freezing. Temperature in the appliance below 27 °F (3 °C).
31 s,s,s,l,l,l,l,l Decalcification finished. –
32 s,s,l,s,s,s,s Current too low. Current in the antifreeze kit too low (e.g. cable break).
33 s,s,l,s,s,s,s,l Current too high. Current in the antifreeze kit too high (e.g. short circuit).

Error Description

tected after release of gas and ignition.
Important: The system indicates this error only after three attempts at intervals
of approximately 30 seconds.

switches (EOS, BOS)

switch (EPS)

perature switch (WOS)

rect time

for gas valve

internal RAM

outlet temperature sensor
WOT

gas release

temperature sensor WIT

line temperature sensor
WCT

modulation section

sumption error

consumption error

running dry.

required.

The exhaust over temperature switch (EOS) or burner over temperature switch
(BOS) is open/unplugged.

The EPS did not close when the flue fan was actuated because the fan did not
push enough air through the exhaust channel. A cause could be, e.g., blocking
of the exhaust channel or a faulty switch.
OR
The EPS is closed even though the flue fan is not running. Cause is a defective
EPS or flue fan.

The WOS opened at a water temperature of over 185°F (85°C).

There is an error in flame detection of the burner because the flame was detected
– before ignition or
– before the release of gas or
– after the gas was switched off.

There is a heating request but gas cannot be released.
One of the switches WOS, EOS, BOS, EPS is open/unplugged.

Error detected in the burner MCU’s internal safety monitoring feature (safety
variables are no longer correct or RAM/STACK was overwritten by mistake).

Water outlet temperature sensor WOT
– has a short circuit or
– is open/unplugged.

signal was not activated.
There is a heating request but the MCU watchdog does not release the gas

path.

>1000 mA and shut off.

Water inlet temperature sensor WIT
– has a short circuit or
– is open/unplugged or
– the temperature of the sensor is colder than 14°F (-10°C).

Circulation line temperature sensor WCT
– has a short circuit or
– is open/unplugged or
– the temperature of the sensor is colder than 14°F (-10°C).

Error at gas valve, modulation level, because

- the modulator has a short circuit or

- is open/unplugged.

The current detector for the flue fan has measured a current outside the permit­ted limits.

The current detector at the circulation pump has measured a current outside the
permitted limits.

The circulation pump does not generate water flow. The water system may not
be filled or not sufficiently vented.
The circulation pump tries (20 times) to generate a water flow every 30 s (if
successful, the error is reset).

You are trying to use more hot water than the appliance can supply.

37

Casing

Ci

Line**

Combustion

APPENDIX B – Functional Diagram

Access

Door

Error

Power ON

Control Unit

LED 1

Power

Switch

Code LED 2

Exhaust

Outlet

Flue Duct

Control

Panel * /

Air Inlet

Filter

Gas Valve

Valve

Safety

Modulator

Valve

Safety

Diagnosis

Gas

Inlet

Exhaust

Relief

Pressure

Valve

Over Temp.

Switch

Flue

Flue

Fan

Fan

Wheel

Heat

Exchanger

MOT

Exhaust

Water

Over

Temp.

Water

Outlet

Temp.

Circulation

Line Temp.

Sensor *

Pressure

Switch

Sensor

Sensor

stabilizer

Temperature

Circulation

Pump *

*

Non-Return

Valve

Flame

FIE

Water

Flow

Rectification

Water

Sensor

Water

Electrode

Burner

Burner

Drain

Lever

Anti Freeze

Element *

Inlet Temp.

Sensor

Over

Temp.

Switch

(optional)

Water Drain

+12 V

Ground

Fig. 33

38

Hot

Water

rculation

Outlet

Cold

Water

Inlet

AquaGo® comfort plus

only

only AquaGo® comfort and

*

**

AquaGo® comfort plus

APPENDIX C – Spare Parts (all models)

1

25

26

27

23

22

28

24

30

19

29

28

20

3

2

4

5

6

38

7

8

9

10

35 (36, 37)

17

15

16

Fig. 34

Item

Ref.

10 77000-91300 Electrodes

11 NYA Flame rectification
12 NYA Access Door
13 NYA Venting Grid
14 NYA Slide latch

15 77000-90400 Burner Assembly

16 NYA Lever
17 NYA Spacer Set

18 77000-90800 Filter Assembly

19 NYA Temperature stabilizer Assembly
20 NYA Relief Valve

Part no. Component

1 NYA Flue Duct Assembly
2 NYA Flue Duct gasket
3 NYA Air Overheat Switch

4 77000-90100 Exhaust Pressure Switch
5 77000-90200 Flue Fan Assembly

6 NYA Heat Exchanger
7 NYA Lower housing Assembly
8 NYA Grommet

9 77000-00113 Control Unit Assembly

18

Item

Ref.

21 – –
22 NYA Upper housing Assembly
23 NYA Water temperature sensor

24 77000-90500 Flow Sensor Assembly

25 NYA Water connector
26 NYA Piping "Basic“
27 NYA Piping "Comfort“
28 NYA Piping "Comfort Plus“

29 77000-90600 Circulation Pump
30 77020-03500 Non-Return Valve Assembly

31 NYA Water overtemperature switch
32 NYA Cable harness 1 (not shown)
33 NYA Cable harness 2 (not shown)
34 NYA Small parts (not shown)

35 77001-01 Access Door Standard
36 77101-01 Access Door Adapter (not shown)
37 77201-01 Access Door XS (not shown)
38 77000-00089 Control panel
39 77000-00114 Sticker set (not shown)

Part no. Component

39

APPENDIX D – Electrical Connection Diagram

18 AWG or 1 mm2 MWG (** 16 AWG or 1.5 mm2 MWG)

Exhaust

(black)

(red)

(blue)

(orange)

Control

Panel * /

Diagnosis

Exhaust

(grey)

(white)

Pressure

Switch - EPS

Water

Over Temperature

Switch - WOS

(violet)

(10 A)
Internal Fuse

Burner

Over Temp.

(green)

(brown)

(yellow)

Error Code LED

Switch - BOS

Over Temp.

Switch - EOS

Circulation

MOT

Flue

Pump*

Fan

(red **)

(black **)

* only AquaGo™ Comfort and

12 VDC

AquaGo™ Comfort Plus

Ground

(orange)

-t°-t°

(green)

( white)

Power Switch

Power ON LED

(black)

(black)

(orange)

( blue)

( red)

Safety Valve Modulator

Gas Valve

(black)

(brown)

(blue)

(yellow)

(red)

(grey)

-t°

Circulation Line

Temperature

Sensor - WCT *

Flame Rectification

Flame Ignition

Electrode - FIE

Electrode - FRE

Water Outlet

Temperature

Fig. 35

40

Sensor - WOT

Water Inlet

Temperature

Sensor - WIT

Water Flow

Sensor - WFS

Anti Freeze

Element *

(optional)

If any of the original wire as supplied with the water heater

must be replaced, it must be replaced with wire 18 AWG (** 16 AWG) - 105 °C - UL1015, or its equivalent

APPENDIX E – Notes for painting the access door and cover plate

• Using a Torx T-15 remove the 4 screws

Important Information

Observe all safety notes/instructions for

painting the access door and cover plate.

The following parts (see Fig. 37) may be
painted:

securing the venting grid to the access
door.

• After removing the screws, depress the
four (4) clips on the side of the venting
grid and remove it as shown in Fig. 36.

• The white cover plate

• The white outer surfaces of the access door

Material of the parts:

• The parts are made from a polycarbonate
material.

• Check whether the paint to be used is suit­able for polycarbonate.

• For optimum adhesion of the paint it may be
necessary to apply a primer to the surfaces
that will be painted.

• Use of unsuitable paints may
damage the parts. Follow the recommenda­tions of the paint manufacturer.

The following parts (see Fig. 36) must not
be painted:

3. Remove the turn lock:
To remove the turn lock, depress the four (4)
clips and remove it as shown in Fig. 36.

4. Mask the venting grid opening from the back

side (side with waffle pattern).

5. Close the access door and fix it in the closed

position for painting.

• This can be done with help of tape that
joins the flue fan and the edge of the turn
lock opening (see Fig. 37 for this detail).

• Remove any tape that hangs over the
edge by more than 0.12 in. (3 mm).

• Finally mask the turn lock opening with
tape (hatched area). Take care not to ex­ceed 0.12 in. (3 mm) from the edge (this
is the area that will be covered by the
turn lock).

• The black venting grid

• The turn lock

• The webbings

Work before painting

In order to simplify painting and reduce the
work for masking, the turn lock and the

venting grid can be removed/disassembled.

Please follow the steps below to remove
the venting grid and the turn lock:

1. Open the access door.

2. Remove the venting grid:

6. Paint the access door and the cover plate.

Work after painting

7. Remove all masking.

8. Assemble the venting grid and the turn lock
in the reverse order. Make sure that they are
installed in the right direction.

9. Ensure turn lock operates correctly (if un­sure: see “Closing the access door“ on
page9).

41

Painting a detached access door

If necessary for masking or painting, the ac­cess door can be detached temporarily.

• Remove the four (4) screws that fix the web­bings.

• Fix the webbings again after painting.

Danger of personal injury or damage to
the recreational vehicle.

Unsecured webbings cause the access door
to become loose and it may fall off when you
are driving the RV.

• After painting, the webbings must be
fixed firmly to the access door with the
original screws.

42

Cover plate

Screws (4 x)

Clips

from the back side

Detail A Detail A

Webbing

Screws (4 x)

Venting grid

Access door

Clips

Fig. 36

Flue fan

Turn lock opening

u

o

r

a

l

al

Tape

Remove

.

n

i

2

1

.

0

d

n

)

m

m

3

(

A

Turn lock

Masked area

Fig. 37

Cover plate

Outer surface
of Access door

Masking of the venting grid opening

43

In case you encounter any problems,

please contact the Truma Service Center
at 855-558-7862 or one of our authorized
service partners. For details see
www.truma.net.

Please have the model number and serial
number (on water heater’s type plate)
handy when you call.

©

77000-00135 · 00 · 03/2016 ·

Manufacturing

Truma Gerätetechnik GmbH & Co. KG
Wernher-von-Braun-Straße 12
D - 85640 Putzbrunn
Germany
www.truma.com

Sales

Truma Corp
825 East Jackson Blvd.
Elkhart, IN 46516
USA
Toll Free 1-855-558-7862
Fax [phone]
[email protected]
www.truma.net