Opus Off-Road Camper OP15 User manual

OPUS CAMPER
OWNER’S MANUAL
Model OP15
OP15V22020

2
Hello and Welcome!
We’re so pleased that you have chosen an OPUS Camper Trailer and we welcome you to the adventure lifestyle. Our goal is to help
every customer push boundaries and explore further, to nd and to foster that love for the great outdoors, and with the help of
their O-Road trailer as a base camp we hope to help our customers nd their inner adventurer.
We are commied to providing the highest level of customer service and so we’ve put together this user manual to help guide you
through the process of learning about your new OPUS trailer. We strongly suggest that you review this manual in its enrety
before using your new Opus Camper. Your dealership should be able to answer any quesons you have and we are very happy to
assist with any further quesons that arise. Geng to know your new camper well and following the guidelines, instrucons and
warnings laid out in this manual will help to ensure that you get the most out of your camper and with considerate treatment and
care it will be your companion for your camping adventures for years to come. We recommend that you keep this Owner’s Manual
with your camper as a reference guide for when you are out on your adventures. If you need a digital copy of this manual please
contact us at OPUS Camper USA and we would be happy to provide you with one.
Here at OPUS we demand a high standard of build in our trailers; to ensure the highest quality our team follow a strict build and
inspecon process before delivery. Your dealership will also run their own inspecon on the camper before it reaches you. We
encourage you to take the me with your dealer when you collect your trailer to familiarize yourself with the camper and
understand the tests that they have run to ensure that everything is working as it should.
If you suspect your OPUS Camper is not working correctly, please contact your dealer to arrange an appointment. If you are
travelling and experience a problem, please rst contact your dealership before any repairs are carried out by a local independent
service department to ensure that you will sll be covered under warranty. Retain all invoices and documentaon to allow for
proper reimbursement through your dealer. For appliances, please refer to the appliance manual for support and warranty
assistance.
The OP15 trailer is designed for recreaonal use only. We would encourage you to familiarize yourself with the warranty for your
trailer to ensure that your use falls in line with the intended usage covered under warranty. Usage outside of these terms could
reduce or void your warranty. You will nd the OPUS warranty informaon in the back of this user manual. Please be sure to follow
up with your dealership to make sure they have completed and returned the required warranty registraon form to acvate your
warranty.
Please note that there may be dierences in the products or design shown or described in this manual from your camper. This
manual was correct at the me of publicaon however we promote an on-going improvement process within our builds and we
reserve the right to change the construcon or design at any me without the obligaon to make these changes on previous
manufactured trailers. If signicant changes are made to the design or build of our models we will take the appropriate steps to
update this manual accordingly for the benet of our customers. Please contact the OPUS Camper USA team for a digital copy for
our most up to date user manual.
Should you have any quesons about your OP15 trailer, no maer how small we are here to help. You can reach us at
[email protected] or call us on 925.215.7215.
We hope you enjoy your OPUS Camper and we wish you many happy memories
Sincerely,
The OPUS Camper Team
A MESSAGE FROM

3
CONTENTS
My OPUS 4
Vehicle Idencaon Number (VIN) 5
Specicaons 6
Dimensions 8
OPUS Quick Set up Guide 9
Hitching & Towing electrics 10
OPUS brake Set up 11
OPUS Control Panel 12
Seng up your OP15 13
120 Volt & 12 Volt Power 16
Water System 18
Propane System 20
Truma Water/ Heang System 22
Seng up your OP15 awning 23
Rooop A/C 23
OP15 Kitchen 24
Bathroom 26
TV & Stereo 27
Windows & Door 28
Packing Down your OPUS 30
Tips & Troubleshoong 31
Care & Maintenance 31
Warranty 38

4
MY OPUS CAMPER
OWNER
ADDRESS
MODEL
VIN
BUILD DATE
DRY WEIGHT
DRY WEIGHT
CARGO CAPACITY
TIRE SIZE
COLD TIRE PRESSURE
(This informaon can be found on the re scker on your OP4 door)
DEALER

5
VEHICLE IDENTIFICATION NUMBER (VIN)
About your Vehicle Idencaon Number
Every OPUS has a Vehicle Idencaon Number (VIN). The VIN Plate can be found on the exterior of your OP15, on the chassis
behind the tongue jack wheel. We recommend making a note of your VIN on the opposite page. This will be required by insurance
companies

6
SPECIFICATIONS
Bodywork Baked enamel nish
Material Di-bond Aluminum composite panel exterior with an Aluminum sub-structure
Dimensions (Travel Mode) 257” (L) x 106” (H) x 83” (W)
Dimensions (SetUp Mode) 280” (L) x 120” (H) x 154 (W with kitchen fully extended)
Ground Clearance 14’’
Chassis Fully galvanized & welded chassis
Drawbar Fully galvanized & welded drawbar
Bed Maress Size (Main Bed) 72’’ (L) x 70’’ (W) x 8.5’’ (H)
Bed Maress Size (Bunks) Boom: 80’’ (L) x 42’’ (W) x 3’’ (H) Top: 80’’ (L) x 33’’ (W*) x 2’’ (H)
Dry Weight 4960lbs
Tongue Weight 397lbs
GVWR 6600lbs
Cargo Capacity 1640lbs
Hitch Lock’n’roll arculang O-Road hitch
Suspension Independent Trailing Arm Coil Spring Suspension
Shock Absorbers Gas Shock Absorbers
Kitchen Exterior Slide out Stainless Steel Kitchen with 4 burner gas stove & sink with electric
tap, dish rack and cutlery drawer.
Kitchen Prep Deck Lockable Fold-down Kitchen prep deck
Refrigerator Domec CFX75
Stabilizers Drop Down Adjustable Heavy Duty Stabilizer legs
Tongue Jack Wheel ARK 750 Dual Tongue Jack
Steps Power step
Stone Guard An-chip protected
Wheels 265/75R/16 Mud Tires (including 2 x spares) and Alloy Wheels
Brake System 12v Electric Drum Brakes with addional E-brake to assist with un-hitching and trailer
brake-away system.
Pop-Top Roof Aluminum frame with top aluminum sheet and Fiberglass interior wall
Sun Awning 8’ Girard Retractable Awning
Features
Build

7
Baeries 3 x 100 ah 12 volt AGM baeries
Solar 3 x 100 wa solar panels with Renergy 30 amp solar charge controller
TV 12v capable TV with exterior mounng bracket and Antenna
Lights Interior & Exterior 12v powered LED Lights
Shore Power 30 amp shore power connecon & cable
Stereo 12v Stereo with interior & exterior speakers, Bluetooth & direct connecon, CD and Radio
Electrical
Water
Seang/Dining Leatheree Seang with adjustable pivot posion table
Furniture Premium Bamboo Interior Cabinetry and wardrobe
Bathroom Ensuite with premium shower, sink and chemical toilet
Heang Truma Combi Heater and Hot Water System (runs o propane & 12v)
A/C Domec 13,500 BTU 120v A/C
Interior
Potable Water Capacity 63 gallons (spread across 2 tanks)
Grey Water Capacity 17 gallons
Black Water Capacity 10 gallons
Water tank guard Checker plate
Water system 1 x 12v electric pump
Hot Water Truma Combi Heater and Hot Water System (runs o propane & 12v) provides hot water to the
outdoor kitchen sink and the indoor bathroom sink and shower

8
DIMENSIONS
Set-Up Mode
257’’
‘’ 106’’
83’
Travel Mode
270’’
280’’
120’’

9
OP15 QUICK SET-UP GUIDE
We strongly recommend that you review the OPUS OP15 User Manual thoroughly before seng up your OP15 for the rst me.
This quick set-up guide is intended as a supplementary refence guide with a summary overview of the steps involved in seng up
your OP15 Caravan
STEP ONE
Apply e-brake, lower the tongue jack &
lower the corner steadies to level your
trailer. Fold down the spare res.
Disconnect the roof latches.
STEP TWO
Open rear panel securing locks & li the
back panel to the roof posion. Pull &
rotate side panel securing spring bolt.
Open the le & Right Side panels fully to
meet the roof grooves.
STEP THREE
Unlock the rear bed fold-down secon
and carefully fold down the bed secon.
Li the rear end wall panel in place and
secure with pins & latch clamps.
STEP FOUR
Slide out the kitchen and connect the
water and gas quick-connects. Connect
your sink drain hose and set up your grey
water collecon
STEP FIVE
Open & latch the door. Turn on trailer
power and lights. Fold down the power
steps. Inside, fold down the main bed
maress
STEP SIX
Pull out all four securing pins for BOTH
the front & rear liing mechanisms
before liing. Li the interior roof-li bars
front end rst then rear end. Slide
securing pins in place.

10
HITCHING, TOWING & BREAKING
Correct Hitch Coupling posion for travel. Hook arms t over trailer-side pin arms. NOTE securing pin
through holes in hook arms and locking pin to hold it in place
Trailer-side hitch part
Vehicle-side part
Fits 2’’ hitch receiver
About your Hitch
The OP15 comes as standard with a Lock'n'Roll arculang hitch. The hitch allows for pivong on 3 axis and provides an overall
smoother towing experience. Ensure the locking pin is fully inserted and secured in place before towing. When hitching the OPUS®
to your towing vehicle you must ensure that someone is close to the handbrake in order to maintain control of the trailer,
parcularly when unhitching on uneven ground or a slope. The Lock’n’roll hitch is a two-part hitch with a vehicle-side and a driver-
side part. The vehicle side ts in a 2’’ hitch receiver and should be locked in place with an appropriate hitch receiver lock. The
trailer side is already installed on hour OP15. To connect the two parts, the trailer side pin arms should be placed in the receiving
secon on the vehicle side part. The hook arms then t over the trailer-side pin arms and a securing pin is ed through the holes
in the hook arms and the hole in the main receiving secon on the vehicle side part. This will hold the trailer side pin arms in place.
Use a locking pin on the securing pin to fully lock the coupling in place.
Securing Pin Hook arm
Locking pin
Trailer side pin arms

11
HITCHING, TOWING & BREAKING
About your Electrical Plug
7 PIN The OPUS® is ed with a 7-pin at plug that connects all the exterior trailer
ltrailer running/break/turn lights and the electric brakes to the towing vehicle. You will
require a 7-pin connecon on your tow-vehicle as well as an in-car electric break
controller installed in your tow vehicle to operate them.
Installing your Safety Chains
The OPUS® is ed with 2 safety chains on the tongue. One end of each chain is ed
to the OPUS® chassis and the other end has an aachment clip which should be
aached securely to your tow vehicle bumper or receiver. Ensure the clips on the
hooks are in place to fully secure the hooks. Do not aach the hooks to the hitch
itself. Ensure that you have enough slack in the chains to turn your vehicle
adequately. Should you require less slack, the chains can be twisted or crossed below
the tongue before connecng to your vehicle to ensure the chains do not drag on the
ground.
About your Brakes
The OPUS® is ed with electric trailer brakes. You need an electric brake controller
ed to your car in order to tow the OPUS® and operate the electric brakes safely.
Failure to tow with a brake controller in your vehicle is both dangerous and illegal.
You can tell if your brakes are working properly by connecng the 7-pin plug, starng
the engine of the tow vehicle and then geng someone to listen to the brake hub
whilst another person applies the brakes in the tow vehicle. If they are working
correctly you will here a low humming sound as the brakes are applied. As part of the
annual service check you should have completed by an accredited industry service
agent, the brakes will be checked and maintained.
Towing
The driver of the tow vehicle must ensure that their Driving License is valid for towing the OPUS® Camper. It is highly
recommended, parcularly if you are not experienced in towing that you adhere to any applicable laws for the state in which
you are driving. Many guides are available from leading associaons and should be studied before you embark.

12
OP15 CONTROL PANEL
1
765234
9
8
10 11 12
13
Switchboard Quick Tips
The Volt Meter: Measures the current baery voltage output. Most appliances will require at least 12.2v from the baeries
otherwise they will not work.
Amp Meter: This shows how many Amps you are currently using. The OPUS® has 3 x 100ah AGM baeries. This gives you 150
usable amps for o-site power.
Baery Indicator: This shows the total capacity remaining in your baeries. If you are showing 50% on your baery meter then
your baeries will not put out the 12.2v required for most accessories to operate. Ensuring you keep a close eye on all 3 gauges
will ensure you are fully informed on the current performance of your 12v baery powered electrical system.
*Each switch on the control panel (power, fridge, sockets, lights and pump) has its own breaker, located directly above the switch.
Understanding the Voltage Meter
The upper number shows what Voltage (power level) the baeries are currently reading. It is the strength of the current owing
from the baeries.
If this number were to drop beneath 12.0v with no load (i.e. no accessories running on the OPUS®) then it is highly likely all the
appliances inside your camper would stop working as the baeries are not able to put out enough voltage to keep these appliances
running.
Do not take a reading when an appliance, such as a fridge, is running. It will give a false reading. Voltage may appear below 12.0 if
the baeries are under load (fridge is acvely running).
The lower number shows the quanty of energy you are currently ulizing from the baeries. If you imagine a water tank holding
100gallons and you drain 4 gallons an hour (gallons would represent amps), then you can tell how quickly under current usage
condions your baeries will be fully drained. Remember your appliances all cycle at dierent rates so this number becomes very
important for esmang baery life.
Control Panel Features
1. Power ON/OFF buon
2. Baery level indicator
3. Volt Meter
4. Amp Meter
5. Front Water Tank Level Gauge
6. Rear Water Tank Level Gauge
7. Black Water Tank Level Gauge
8. Grey Water Tank Level Gauge
9. Fridge outlet power buon
10. 12 volt socket power buon
11. Lights power buon
12. Water Pump power buon

13
SETTING UP YOUR OP15
STEP 1 - Once you have posioned your OPUS® in the desired locaon, engage the e-brake. Try to
choose a site that is as level as possible and where the ground is not too so.
STEP 2 - You can now un-hitch from your tow vehicle if you choose. The lock’n’roll two part hitch can be
disconnected by removing the locking pin and unhooking the two hook plates (see page 10 for more
informaon on your hitch)
STEP 3 - Raise or lower the tongue jack wheel to level your OPUS® Horizontally.
STEP 4 - To drop down the corner steadies, pull the blue handle outwards unl the leg drops down to a
90 degree angle from the trailer. Using the included corner steady winder (or cordless drill/driver with a
3/4'' Hex socket aachment) wind down each corner steady leg unl it touches the ground. Depending
on the terrain, you may need to adjust each corner to level the OPUS® width ways. Tip!
It may help to li the weight of the leg when pulling out the blue handle. NEVER li the OPUS completely o the ground using just
the corner steadies.
STEP 5 - Disconnect the four roof securing latches; Use your thumb to push in the release pin (see 5b & 5c below) then li the
handle to release the latch from the hook completely.
STEP 6 - At the back of the OP15 un-screw the black spare re securing bolts unl they can be removed from the hole completely.
STEP 7 - Next, disconnect the spare re securing latches using the red lever handle. Fold the handles and triangle pin downwards
so they are out of the way of the rear panel. Carefully fold down the spare re bracket; the arm is gas-strut assisted to help with
the weight. Fold the bracket down as far as it will go.
5a 5b 5c 5d
6a 6b 6c
6d
6e
3

14
STEP 8 - Use the push-buons to open the rear panel securing locks. Li the back panel upwards to the roof posion.
WARNING! Please note that this panel will not yet remain in this posion without compleng the next step.
STEP 9 - Using one hand or a helper to hold the roof panel up, pull and rotate the spring bolt that secures the side panel unl it is
in the vercal posion. This will allow the side panels to swing outwards.
STEP 10 - Open the le side panel fully through 90 degrees, ensuring the panel meets the top le corner groove of the roof panel
to complete the set-up and achieve a full seal. Repeat with the right ride panel.
STEP 11 - Holding the bed panel securely, release the two rear bed panel securing latches and fold down the bed panel.
WARNING! Please ensure you or a helper are holding the fold down bed panel before releasing the latches as this panel
can shi if you are on any incline or the camper is not completely level. Failure to support the panel fully at this point
could result in serious injury or damage to the trailer.
STEP 12 - Carefully lower the rear bed panel into the horizontal posion.
WARNING! This panel is heavy especially considering the angle and reach required to hold it. We recommend two people
complete this stage of the set up together for the rst several uses unl you are familiar with its weight and movement
and condent that you can complete the set up individually.
STEP 13 - Use the handle to li the rear end wall panel in place. Slide the two locking pins in place and then secure with the latch
clamps.
SETTING UP YOUR OP15 cont.
9b9a
8b
8a
11b
11a
10b
10a

15
STEP 14 - Open the two push-buon latches and fold down the kitchen door. Unhook the two
locking spring-bolts and slide your kitchen out. Quick-connect your water and gas at the kitchen
connecon points and the quick connects on the side of the OP15. Please see the secons on the
Gas System, Water system and the Kitchen for more informaon on seng up the kitchen.
STEP 15 - Route your sink drainage hose out of the boom of the kitchen and into your
designated grey water carrier.
STEP 16 - Open and latch your OP15 entry door. Turn on the power and lights. Press the circular
buon on the le of the entry way to deploy electric step.
STEP 17 - Pull out the securing pins for the front and rear liing mechanisms.
STEP 18 - Use the interior roof li bars at the front and rear of the OP15 to push the roof up into
place. Slide the securing pins for the roof liing mechanism into place to secure the roof.
STEP 19 - Fold out the main bed maress. You will nd two addional white cushions covered with the same fabric as the maress
and two addional blue leatheree covered cushions. Place the white cushions on either side of the maress and the two blue
cushions between those cushions at the outer wall to help keep your maress in place.
13b
13a
12b
12
13c
18b
18a
17
15
14b
14a
SETTING UP YOUR OP15 cont.

16
120 VOLT & 12 VOLT POWER
120 Volt Shore Power Connecon
Safe operang procedures
The OP15 comes ed with a 120 volt power system. This 120 Volt power system complies
with NFPA and NEC regulaons. The hookup for the 120v is located outside on the driver-side
of the OP15. The main circuit breaker panel is located inside the OP15 in the footwell under
the master bed. Always ensure you have a clear access to the circuit breaker panel and that it
is not blocked at any me. There are 2 internal dual 3-pin 120v outlets with USB sockets and
one exterior dual 120v outlet.
The exterior shore power hookup is located on the driver's side at the front of the OP15 and
your OP15 comes supplied with a 30ah shore power cable and pigtail connecon for both
campsite and home outlet connecon. Take care to ensure proper maintenance of the power
cord and pigtail accessory items. Always use a Listed and approved 20ah cable and adapter and
a grounded power source. Never use an extension cord. DANGER! Due to potenal danger in
failing to heed this warning, the recreaonal vehicle manufacturer cannot be held responsible
should damage, injury or death result from failure to connect the power cord to a properly
grounded power source.
Invertor informaon
Your OP15 has a 12v to 120v changeover switch and invertor installed located in a
compartment under the master bed, accessed by liing the maress and removable panel. If
you are not connected to a 30amp shore power connecon the invertor will AUTOMATICALLY begin converng 12v current from
your baeries to 120v to supply any connected appliances connected to the 120v outlets. To reserve your 12v baery power we
recommend unplugging all 120v appliances if you are not connected to the 30amp shore power hook up. These power hungry
appliances will deplete your baeries very quickly (even with the solar-assisted charging) so we recommend using this
funconality sparingly. Please pay very close aenon to your amp meter if you are running a 120v appliance via the invertor;
try plugging each appliance in separately to check its amperage draw to help you beer understand and manage your power
supply. Please note that the A/C system requires 120v shore power to run. You cannot run the A/C system o of your baeries
as it WILL DRAIN YOUR BATTERIES in a very short period of me. For more informaon on using you’re A/C system please see
the A/C secon of this manual. There are no other 120v appliances or systems built into the OP15 as standard.
12 Volt Baery Power
The OP15 has three 100ah deep cycle marine baeries installed as well as a fully automac
baery charge controller. You will need to charge your baeries for at least 24hrs prior to each
trip using a 120volt shore power connecon to ensure that they are fully charged. The main
control panel has a baery volt-meter that will provide an indicaon of the charge level of your
baeries. A fully charged baery bank will be indicated by a full baery symbol and the voltmeter
reading around 13.7volts . If you are at a campsite with shore power then we recommend
connecng for the duraon of your stay to keep your baeries fully charged. If you are camping
o-site without 120volt power then the length of me that your baeries will last will depend on
how much 12volt energy you use, how much solar power you are generang to recharge the baeries (see below “Solar Power”
Secon), the ’health’ or condion of your baeries and in some cases the ambient temperature. Your control panel will show
you how much power you are using and how much remaining power is in your baeries to help you manage your power
consumpon.
120v Panel Board
120v Shore Power Hookup

17
Baery Tips!
• The baery indicator on your control panel will show how much energy is le in your baery bank. It is important to note that
it does NOT explicitly show how much useable power is le in your baeries.
• You have a 300 amp baery system. AGM baeries are able to reliably put out over 12.0v of power for 50% of their capacity.
Most 12v appliances will require a 12volt output from the baeries to work. This means you 150 usable amp hours from a
fully charge set of baeries. The indicator on your control panel will show you how much total energy you have in your enre
baery bank. This means that when your indicator shows 50% you have used all of the usable power within your baery
bank. If you connue to drain power from your baeries beyond this point can and will most likely cause damage to your
baery bank.
• AGM baery lifespans are longer when they remain at full charge. Frequently discharging your baeries and leaving them
empty will accelerate the degradaon process of your baeries and reduce their lifespan. The NOCO Genius charger
installed in your OP15 will control the amount of charge delivered to your baeries so that they do not over charge, therefore
you can leave your OP15 plugged in at all mes when at home.
• If you are not keeping your OP15 plugged in whilst at home we recommend that you disconnect your baeries to maintain
good baery health. Please see the *care and maintenance secon for more informaon on this topic.
• The CO/LP alarm is wired directly to the baeries. This means that turning the power to the OP15 o on the control panel will
NOT shut power o to the CO Alarm. Please follow the winterizaon process for baery care to ensure you are fully
disconnecng the baeries during long periods of storage.
• Always set your fridge to ‘LO’ before heading out on your trip. This will use less power from your baery and allow you
longer o-site camping.
Solar Power
There are three 100 wa solar panels mounted to the roof of the OP15 with a 30amp solar
charge controller installed. During the day with adequate sunlight, the solar panels will
automacally trickle charge your baeries. We recommend reading the user manual for your
solar panels & charge controller in full to understand the capabilies and sengs for the
solar panels and charge controller.
12 Volt Baery Power cont.
On the control panel you will nd the main 12v ON/OFF switch. There are sepa-
rate switches for the following 12volt operated appliances and systems in the
OP15: Fridge, Sockets, Lights, Water Pump.
The OP15 has two 12v outlets for the interior TV hookup, two for the exterior TV
hookup and one exterior 12v socket by the kitchen. The internal and external
lights for your OP15 are all 12v LED. They can all be switched on or o inde-
pendently either on the light itself or on via a switch in the OP15.
Exterior
Rear Light Motorized Step Main Interior Light
Exterior Door
Handle Light
Exterior
Prep-deck Light
120 VOLT & 12 VOLT POWER cont.

18
Gray Water Tank
Potable Water Tanks
Black Water Tank
Drain Hose Storage
WATER SYSTEM
Potable Water System
The OP15 is ed with two 31 gallon fresh water tanks mounted under the OP15 towards the middle and rear of the trailer. The
water tanks have two ll points located on the driver-side of the OP15 and idened by a blue water faucet icon.
WARNING: Only potable water from a reliable source should be used in these tanks. Do NOT
store water in the tanks for more than two weeks. Please ensure you sanize, ush and drain
the water tanks before using and a minimum of every 6 months thereaer or if you suspect
there’s an issue with the quality of your water. Do NOT use bleach to sanize the tanks as they are
stainless steel and it will cause corrosion. Please see the OPUS Care & Maintenance secon of this
manual for more informaon on sanizing your water system. Failure to maintain your tank can
result in death or serious injury.
Your water system is connected to the 12v water pump which can be switched on via the main control
panel. Your two potable water tanks may be used to supply water to the bathroom including the shower and sink as well as the
kitchen sink. The potable water tanks also supply water to the Truma hot water system AND the ushable toilet (see each secon
on the following page for more informaon on these systems). The water pumps are pressure operated, so once the main power
switch is turned on at the control panel the pump will prime the system and as soon as you turn the tap on the water will ow.
Once the tap is closed, the pump will turn o unl the tap is turned back on. Please turn o your pump at the main control panel
when the water system is not in use as they will connue to use baery power when they are turned on
but not in use. Do not run your water pump when the tanks are empty as this could cause the damage
to the water pump and circuit.
You can use the water gauges on the main control panel to check the water levels in each tank. The
tanks are gravity lled and included with your OP15 is a potable water ll hose which should also be
sanized regularly. It is important to monitor the water levels in your tanks. When your water tanks or
empty please turn o your water pump. Running your pumps without water in the tank will cause your
water pumps to burn out. Please see the Troubleshoong secon for ps if you are not able to draw
from your potable water tanks
You can set your water pump to draw from EITHER the front OR the rear tank OR from both tanks. To do this, locate the selector
lever located under your OP15, behind the driver-side wheel. You will see a blue lever at a juncon of three water pipes. To select
the FRONT tank, move the lever through 90° towards the F marking in the direcon of the rear of the trailer. To select the REAR
tank, move the lever towards the R marking in the direcon of the front of the trailer. To select BOTH tanks move the lever to the
center of the markings, so that the red arrows line up with the three water pipes. Please note if either of your water tanks is
EMPTY please move the selector to the other tank and do not leave it on BOTH tanks.
Black Water Tank
OP15 Water Tank Locaons

19
Gray Water System
The OP15 gray water tank has a capacity of 17 gallons and is the front most tank on the underside of
your trailer. It collects the gray water from your shower and bathroom sink. Please note that your
kitchen sink does not drain into the gray water tank. Please visit the Kitchen secon of this manual for
more informaon on the kitchen sink drain. You should connually monitor the ll level of your gray
tank using the gauge on the main control panel during use. We recommend emptying your gray tank
when it is around 3/4 full. You will nd the gray water drain outlet on the gray water tank. Please
remember to dispose of gray water safely at dumping staons or other permied outlets.
Only liquid run o from the shower and sink should be drained into your gray water tank. No other liquid is permied to be
drained into the gray tank. It is important to regularly clean your gray water tank as a build up of grease, dirt and soap scum can
impact the funcon of the tank and cause odor. Please see refer to the OP15 Care and Maintenance secon of this manual for
proper cleaning steps and for cleaning and draining prior to storage. Do NOT use bleach to clean your gray water tank.
Black Water System & Toilet
The OP15 black water tank is located towards the front of the trailer on the lower edge of the driver’s
side. It can be idened by the black tank drain valve. The capacity of the tank is 10 gallons and the ll
level can also be monitored using the gauge on the main control panel. We recommend emptying
your black tank when it is at least 1/2 to 3/4 full and aer every camping trip. Emptying your tank
sooner may result in solid waste being le behind in your tank; a fuller tank allows more opportunity
for breakdown of solid waste. All waste from the OP15 toilet is collected in the black tank so please
take cauon when emptying to avoid contact with waste which can carry harmful bacteria. The black
tank must ONLY be disposed of in designated dump staons. At the rear of the trailer is a holding
tube for the black tank drain hose. To empty your black tank:
WATER SYSTEM CONT.
Draining your potable water tanks
Located on each potable water tank you will nd a draining valve at the lowest point of the tank. When packing away the OP15
complete the following process to drain the system of any excess water.
A. Switch o the pump on the main control panel
B. Open the faucet & allow the excess water in the pipe
to drain
C. Close the faucet once all of the water has drained.
D. Disconnect either side of the quick connect
E. Ensure the sink is emped and that the waste water drain hose
is empty before folding it back into the kitchen. Please refer to
the steps in the care and maintenance secon of this user
manual for more informaon on draining and preparing your
tanks for storage.
A. Remove the black tank hose from the storage tube
by twisng the cap o
B. Connect the drain hose to the drain valve by
twisng on to receiver hooks
C. Ensure the other end of the drain hose is directed
into the appropriate dump point.
D. To empty, pull the valve to open.
E. Leave the valve open unl you can no longer hear
liquid waste draining then close the valve
completely. Close the valve at this point
You can also use Formaldehyde-free black tank treatments such as the Camco TST Drop-ins to help breakdown waste and prevent
odors. If you are on-site camping and connecng to a campground sewer we recommend keeping the tanks drain valve closed unl
you need to drain to assisng in purging the tank of solid waste. Please see the ‘Bathroom’ secon of this manual for more infor-
maon on using your toilet.
Warning: Do NOT leave waste in your tank during storage. Always remember to close the drain valve aer draining the
black tank and before removing the drain hose. Your drain hose should also be regularly cleaned and sanized. Do NOT
use bleach to clean your black water tank. Please see the care & maintenance secon for further details on properly cleaning &
sanizing your black tank.

20
PROPANE GAS SYSTEM
Safe operang procedures for your propane gas system
The OP15 is ed with a dual mount for two 20lb. PROPANE gas
boles and an automac changeover dual regulator. Both boles can
be connected to the regulator at the same and the regulator will
automacally switch between the gas boles as required. The OP15
gas system will also work with only one propane tank installed. Please
ensure the gas boles are turned o when the gas is not in use.
To install a gas cylinder, place the gas bole in the holder and use the
provided clamp to hold the cylinder in place. Adjust the t if necessary
by turning the threaded triangle bolt. Ensure that you have the correct
gas hose to connect the gas cylinder to the xed gas regulator; your
OP15 comes with a regulator-to-gas bole pigtail hose which should
be compable with most US standard propane boles. Once
connected to the propane bole, the gas tap/valve on the top of the
gas bole can now be opened.
To connect the gas system on the kitchen; stowed under the sink there is a gas hose ed to the stove that has a quick connect on
the other end. Thread the gas hose through the aperture under the kitchen and connect to the gas quick connect on the side of the
OP15. Turn on the blue gas tap on the gas quick connect on the side of the OP15 by turning 90° so that it is parallel with the xture.
To operate the gas stove; li up the stainless steel lid, turn on one of the burners (push in, turn and hold to ignite). Keep pressing
the buon unl the gas has had me to ll up the system and the
burner will ignite. You may need to hold the buon in for up to 10
seconds before ignion to overcome the accidental ignion safety
precauon in-built in the hob. Do NOT lean across the burners to
reach the stove controls.
When the stove is not in use, please ensure the gas is turned o at the
quick connect valve on the side of the OP15. If not using the Truma
combi system, please also turn the valve on the gas boles to the o/
closed posion.
Please note that your Truma Combi System uses the propane system. Your propane tanks must be connected and in the open/ on
posion to supply the Truma Combi system to produce heat or hot water. Please refer to the secon on the Truma Combi system
for further informaon on how to operate.
You have an Propane (LP) / Carbon Monoxide (CO) detector installed in your OP15, direct wired to the baery. Please read the
user manual supplied for the detector to fully understand correct usage. If the Propane or Carbon Dioxide warning alarm sounds,
evacuate the trailer immediately and, if safe to do so, close o and fully disconnect the propane tanks. Do not touch any
electrical switches.. Follow proper and safe steps to venlate the trailer and await for the alarm to stop before returning to the
trailer. If a propane leak is suspected fully disconnect the propane tanks and make an appointment to have your OP15 serviced
with your dealership.
Ensure that the gas bole valve is closed prior to packing up the OP15 for transit or storage, the quick connect valve on the side of
the OP15 has been closed and that the gas hose has been disconnected from the side of the OPUS and carefully stowed inside the
kitchen. Please make sure that the gas hose is fully inserted into the kitchen before sliding the kitchen into the storage
compartment. Failure to do so can lead to the gas hose geng caught in the runners which can lead to damage.
Do not use any other gas systems than those provided with the OP15. Always turn o the shut o valve IMMEDIATELY aer use.