Opus OP15 2022 User manual

TOUGHLUXURY
OP15 2022 USER MANUAL
A DETAILED GUIDE OF EVERYTHING YOU NEED TO KNOW ABOUT YOUR OPUS CAMPER
APPLICABLE TO ALL MODELS IN PRODUCTION AFTER APRIL 2022
OPus
off-road
TOUGHLUXURY

WELCOME TO THE OPUS FAMILY!WELCOME TO THE OPUS FAMILY!
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 find and to foster that love for the great outdoors, and with the help of
their Off-Road trailer as a base camp we hope to help our customers find their inner adventurer.
We are committed 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 entirety before
using your new Opus Camper. Your dealership should be able to answer any questions you have and we are very happy to assist
with any further questions that arise. Getting to know your new camper well and following the guidelines, instructions and warn-
ings 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
inspection process before delivery. Your dealership will also run their own inspection on the camper before it reaches you. We en-
courage you to take the time 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 appoint- ment. If you are trav-
eling & experience a problem, please first contact your dealership before any repairs are carried out by a local independent service
department to ensure that you will still be covered under warranty. Retain all invoices and documentation to allow for proper reim-
bursement through your dealer. For appliances, please refer to the appliance manual for support and warranty assistance.
The OP15 trailer is designed for recreational 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 find the OPUS warranty information in the back of this user manual. Please be sure to follow
up with your dealership to make sure they have com- pleted and returned the required warranty registration form to activate your
warranty.
Please note that there may be differences in the products or design shown or described in this manual from your camper. This
manual was correct at the time of publication however we promote an on-going improve- ment process within our builds and we
reserve the right to change the construction or design at any time without the obligation to make these changes on previous man-
ufactured trailers. If significant changes are made to the design or build of our models we will take the appropriate steps to update
this manual according- ly for the benefit 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 questions about your OP15 trailer, no matter how small we are here to help. You can reach us at info@opus-
camper.us or call us on 925.215.7215. We hope you enjoy your OPUS Camper and we wish you many happy memories
Sincerely,
OPUS CAMPER USAOPUS CAMPER USA

PAGE: 0 - TABLE OF CONTENS
PG 18 19: GAS SYSTEM
I G C
P V
C K
O G S
S T S
P (LP) / CO D
PG 20 21: PACKING UP YOUR OPUS
PG 22 24: ABOUT YOUR KITCHEN
K S
K S
F
PG 25: HEATER TRUMA COMBI
PG 26: AWNING SETUP
PG 26: AC DOMETIC PANGUIN II
PG 27: BATHROOM
T
S
S
PG 28: ENTERTAINMENT
T
R
S - I/O
PG 29: WINDOWS & SCREENS
PG 30: FRONT DOOR SKYLIGHT
PG 31 36: CARE & MAINTENANCE
W
P
C T
B
G
B S
F E
E E
PG 37 38 : WARRANTY
PG 39 40 : WHAT’S INSIDE MY OP15
PG 1 2: SPECIFICATIONS
A H
PG 3: DIMENSIONS
PG 4: HITCHING UP
A H
DO35 C
PG 5: QUICK SETUP
S Q S- S
S- T
PG 6: TOWING
T F
E B P
S C
B B M
S L
PG 7: CONTROL PANEL
P M
B I
Q T
V M
PG 8 - 10: FULL SET-UP GUIDE
E
I
K
B
F
PG 11 14: ELECTRICAL SYSTEM
12OV S P
3-PIN S
R A/C
G R
I
12V O L
B B/ U P
C B C/C W
CO/LP A
S P S
PG 15 17: WATER SYSTEM
P W S
G W S
B W S
INSIDE YOUR USER MANUAL:INSIDE YOUR USER MANUAL:
ONLINE USER GUIDE
WEBSITE

Color Grey
Body Work Baked Enamel Finish
Material Di-bond aluminum composite panel exterior with aluminum sub-structure; fully hot-dip
galvanized chassis draw-bar
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 Mattress Size (Main Bed) 72’’ (L) x 70’’ (W) x 8.5’’ (H)
Bed Mattress Size (Bunks) Bottom: 80’’ (L) x 42’’ (W) x 3’’ (H)
Top: 80’’ (L) x 33’’ (W*) x 2’’ (H)
Dry Weight 5,159 lbs
Tongue Weight 410 lbs
GVWR 6,393 lbs
Cargo Capacity 1640 lbs
BUILD
FEATURES
Coupling Cruisemaster DO35
Suspension Independent Trailing Arm Coil Spring Suspension with Dual Shock Absorbers
UPGRADED RE-ENGINEERED SUSPENSION with vertical spring positioning
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 Dometic CFX75
Stabilizers Drop Down Adjustable Heavy Duty Stabilizer legs
Tongue Jack Wheel ARK 750 Dual Tongue Jack
Steps Manual
Stone Guard Anti-chip protected
Wheels 265/75R/16 Mud Tires (including 2 x spares) and Alloy Wheels
Brake System 12v Electric Drum Brakes w/ E-brake to assist w/ un-hitching & trailer brake-away system.
Pop-Top Roof Aluminum frame with top aluminum sheet and Fiberglass interior wall
Sun Awning 8’ Girard Retractable Awning
PAGE: 1
SPECIFICATIONSSPECIFICATIONS
FEATURES
FEATURES
BUILD

INTERIOR
Seating/Dining Leatherette Seating with adjustable pivot position table
Furniture Premium Bamboo Interior Cabinetry and wardrobe
Bathroom Ensuite with premium shower, sink and chemical toilet
Heating Truma Combi Heater and Hot Water System (runs off propane & 12v)
A/C Dometic 13,500 BTU 120v A/C
Batteries 3 x 100ah 12v AGM Batteries
Solar 3 x 100 watt solar panels with Renergy 30 amp solar charge controller
TV 12v capable TV with exterior mounting bracket and Antenna
Lights Interior & Exterior 12v powered LED Lights
Shore Power 30 amp shore power connection & cable
Stereo 12v Stereo with interior & exterior speakers, Bluetooth & direct connection, CD and Radio
VIN #
Every OPUS® has a Vehicle Identfcaton Number (VIN). The VIN Plate can be found on the exterior of your OPUS® to the right of the
door. We recommend making a note of your VIN in the template as shown. This will be required by insurance companies.
SPECIFICATIONSSPECIFICATIONS
PAGE: 2
WATER
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 off propane & 12v) provides hot water to
the outdoor kitchen sink and the indoor bathroom sink and shower
ELECTRIC
WATER
INTERIOR
VIN NUMBERVIN NUMBER

DIMENSIONSDIMENSIONS
SET-UP MODE
83 INCHES
PAGE: 3
TRAVEL MODE
257 INCHES
106
INCHES
280 INCHES
270 INCHES
120
INCHES
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’’
Bed Mattress Size (Main Bed) 72’’ (L) x 70’’ (W) x 8.5’’ (H)
Bed Mattress Size (Bunks) Bottom: 80’’ (L) x 42’’ (W) x 3’’ (H)
Top: 80’’ (L) x 33’’ (W*) x 2’’ (H)

PAGE: 4
For coupling the DO35 to your vehicle, we recommend the following:
• Ensure Tow Pin Cover is removed from Tow Pin.
• Make sure Tow Pin and Universal mating surfaces free of sand, dirt
and foreign objects, and is lightly lubricated.
• Raise height of trailer coupling above vehicle Tow Pin by adjusting
Jockey Wheel or Stand.
• Push and hold Lock Button down (push the Lock Plate to full open
position until the Lock Button is able to spring back)
DEPRESS RED BUTTON FOR SPRING LOADED SLIDE TO LOCK COUPLING TO VEHICLE
ENSURE TOW PIN PROTRUDES THROUGH LOCKING MECHANISM BEFORE ATTEMPTING TO LOCK
• Assemble the Checklock cap by snapping in the back edge of the
cap first and then pushing down on the front. The cap will emit an
audible snap when assembled correctly.
• Align Coupling over Tow Pin by moving either vehicle or trailer, and lower coupling onto Tow Pin. Ensure that Universal is
fully seated on Tow Pin; Ensure Tow Pin protrudes through locking plate.
• Push the Lock Button to release the plate into the locked position.
COUPLING UNLOCKED
POSITION, TOW PIN
HOLE MUST BE CLEAR
ATTACH CAP FROM THE REAR FIRST FOR EASIER FITMENT
PRESS FRONT OF CAP FIRM AND ENSURE SNAP FIT.
DO35 CRUISEMASTER
HITCHING-UPHITCHING-UP
ABOUT YOUR HITCH
VEHICLE SIDE HITCH PROTECTIVE COVER DO35 CRUISEMASTER HITCH SARACEN DO35 HITCH LOCK

QUICK SET-UPQUICK SET-UP
PAGE: 5
OP15 QUICK SET-UP TIPS
We strongly recommend that you review the OPUS OP15 User Manual thoroughly before setting up your OP15 for the first time. This
quick set-up guide is intended as a supplementary refence guide with a summary overview of the steps involved in setting up your
OP15 Caravan
STEP 1
Apply e-brake, lower the tongue jack & lower the
corner steadies to level your trailer. Fold down
the spare tires. Disconnect the roof latches.
STEP 2
Open rear panel securing locks & lift the back
panel to the roof. Pull & rotate side panel secur-
ing spring bolt.
STEP 3
Unlock the rear bed fold-down section & fold
down the bed section. Lift the rear end wall pan-
el in place and secure with pins & latch clamps.
STEP 6
Pull out securing pins for BOTH the front & rear
hybrid roof, lift interior roof-lift bars front end
first then rear end. Slide securing pins in place.
STEP 5
Open & latch the door. Turn on trailer power
and lights. Fold down the steps. Inside, fold
down the main bed mattress
STEP 4
Slide out the kitchen and connect the water and
gas quick-connects.

TOWINGTOWING
PAGE: 6
ABOUT YOUR ELECTRICAL PLUG
7 PIN The OPUS® is fitted with a 7-pin flat plug that connects all the exterior trailer running/brake/turn lights and the electric brakes to the towing vehi-
cle. You will require a 7-pin connection on your tow-vehicle as well as an in-car electric brake controller installed in your tow vehicle to operate them.
INSTALLING YOUR SAFETY CHAINS
The OPUS® is fitted with 2 safety chains on the tongue. One end of the chain is fitted to the OPUS® chassis and the other end has an attachment clip
which should be attached securely to your tow vehicle bumper or receiver.
• Ensure the clips on the hooks are in place to fully secure the hooks.
• Do not attach 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 connecting to your vehicle to ensure the chains do not
drag on the ground.
ABOUT YOUR BRAKES
The OPUS® is fitted with electric trailer brakes. You need an electric brake controller fitted to your car in order to tow the OPUS® and operate the electric
breaks 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
connecting the 7-pin plug, starting the engine of the tow vehicle and then getting 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.
BRAKE MAINTENANCE
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, particularly 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
associations and should be studied before you embark. Trailer towing laws are different in each state. No matter where you are in the U.S., the following
features are recommended safety equipment for trailer towing:
* Lights: Your trailer lights must be maintained in working order for basic road safety.
* License plate light: Make sure to clearly display your license plate
* Reflectors: These are an invaluable precaution to keep your large trailer visible.
* Flares: Keep these at hand to clear off a section of the road after an accident.
* Tie-downs: If you are loading anything on a trailer that could possibly fall off, you’ll need tie-downs to secure it at multiple angles.
STABALIZER LEGS
The four stabilizer legs are not designed to hold the weight of the trailer and should not be used to level your OPUS. Do not release the stabilizer legs
until your unit is properly level, you can then lower the legs to provide stabilization on all for sides of the camper.
IMPORTANT! Support the stabilizer leg at all times as you lower it to prevent the bolts from slamming down & breaking the bolts
You might require the use of aYou might require the use of a
block or rock to level your trailer.block or rock to level your trailer.
Do not put the weigh of theDo not put the weigh of the
camper on the stabalizer legscamper on the stabalizer legs
without additional support.without additional support.
SAFETY CHAINSSAFETY CHAINS DC-DC CHARGEDC-DC CHARGE
CONNECTIONCONNECTION 7-PIN PLUG7-PIN PLUG LEVELLEVEL ELECTRIC BRAKESELECTRIC BRAKES DO35 HITCHDO35 HITCH
ABOUT YOUR DC-DC CHARGE CONNECTION
Your OP4 comes with a DC - DC charge connection prewired to the front of the chassis if you choose to install the DC-DC power option.

CONTROL PANELCONTROL PANEL
PAGE: 7
• The Volt Meter – Measures the current battery voltage output. Most appliances will require at least 12.2v from the batteries other-
wise they will not work.
• Amp Meter – This shows how many Amps you are currently using. The OPUS® has 2 x 100ah AGM batteries. This gives you 100
usable amps for off-site power.
• Battery Indicator – This shows the total capacity remaining in your batteries. If you are showing 50% on your battery meter then
your batteries will not put out the 12.2v required for most accessories to operate.
• Ensuring you keep a close eye on all 3 gauges will help to make sure you are fully informed on the current performance of your 12v
battery powered electrical system.
• The Upper Number shows what Voltage (power level) the batteries are currently reading. It is the strength of the current flowing from the batteries.
• 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 batteries 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 batteries are
under load (fridge is actively running).
• The lower number shows the quantity of energy you are currently utilizing from the batteries.
• 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 conditions your batteries will be fully drained.
• Remember your appliances all cycle at different rates so this number becomes very important for estimating battery life.
VOLTAGE METER
FUNCTIONS:
1. Power ON/OFF Button
2. Battery Level Indicator
3. Voltage 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 Button
10. 12 Volt Socket Power Button
11. Lights Power Button
12. Water Pump Power Button
CONTROL PANEL QUICK TIPS
FUNCTIONS:
1. Power ON/OFF Button
2. Battery Level Indicator
3. Voltage 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 Button
10. 12 Volt Socket Power Button
11. Lights Power Button
12. Water Pump Power Button
2
2
3
4
5678
910 11 12
U P

op15 SET-UPop15 SET-UP
PAGE: : 8
STEP 1
Once you have positioned your OPUS® in the desired location, engage the e-brake. Try to choose a site that is as level as possible and where the
ground is not too soft.
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 information 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 until the leg drops down to a 90 degree angle from the trailer. Using the includ-
ed corner steady winder (or cordless drill/driver with a 3/4’’ Hex socket attachment) wind down each corner steady leg until it touches the ground.
Depending on the terrain, you may need to adjust each corner to level the OPUS® width ways.
STEP 5
Disconnect the four roof securing latches; Use your thumb to push in the release pin (see 5b & 5c below) then lift the handle to release the latch
from the hook completely.
STEP 6
At the back of the OP15 un-screw the black spare tire securing bolts until they can be removed from the hole completely.
STEP 7
Disconnect the spare tire securing latches using the red lever handle. Fold the handles & triangle pin downwards so they’re out of the way of the
rear panel. Fold down the spare tire bracket; the arm is gas-strut assisted to help with the weight. Fold the bracket down as far as it will go.
STEP 8
Use the push-buttons to open the rear panel securing locks. Lift the back panel upwards to the roof position.
WARNING
Please note that this panel will not yet remain in this position without completing the next step.

Setting up your OP15Setting up your OP15
PAGE: 9
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 until it is in the vertical position.
This will allow the side panels to swing outwards.
STEP 10
Open the left side panel fully through 90 degrees, ensuring the panel meets the top left 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 shift 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 position.
STEP 13
Use the handle to lift the rear end wall panel in place. Slide the two locking pins in place and then secure with the latch clamps.
WARNING
Please ensure you or a helper are holding the fold down bed panel before releasing the latches as this panel can shift 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.

PAGE: 10
STEP 14
Open the two push-button latches and fold down the kitchen door. Unhook the two locking spring-bolts and slide your kitchen out. Quick-con-
nect your water and gas at the kitchen connection points and the quick connects on the side of the OP15. Please see the sections on Gas System,
Water system and the Kitchen for more information on setting up the kitchen.
STEP 17
Pull out the securing pins for the front and rear lifting mechanisms.
STEP 16
Open and latch your OP15 entry door. Turn on the power located in
the control panel on the right entry and switch on lights.
STEP 18
Use the interior roof lift bars at the front and rear of the OP15 to push
the roof up into place. Slide the securing pins for the roof lifting
mechanism into place to secure the roof.
STEP 15
Route your sink drainage hose out of the bottom of the kitchen and
into your designated grey water carrier.

PAGE: 11
ElectricalElectrical
BREAKER / PANEL
The OP15 comes fitted with a 120-volt power system. This 120 Volt power
system complies with NFPA and NEC regulations. 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. If
you’re experiencing issues with your power the first time you use your trail-
er check the breakers as they might be turned off in new units.
Always ensure you have clear access to the circuit breaker panel and that it
is not blocked at any time.
3-PIN SOCKETS
There are two internal dual 3-pin 120v outlets with USB sockets and one
exterior dual 120v outlet. There’s a third located in the fridge compartment
of your OP15.
SHORE POWER HOOK-UP
The exterior shore power hookup is located on the driver’s side at the front
of the OP15. Your OP15 comes supplied with a 30 Amp shore power cable
and pigtail connection for both campsite and home outlet connection.En-
sure proper maintenance of the power cord and pigtail accessory items. Al-
ways use a Listed and approved 30 Amp cable and adapter and a grounded
power source. Never use an extension cord. DANGER! Due to the potential
danger to ignore this warning, the recreational vehicle manufacturer can-
not be held responsible should damage, injury or death result from failure
to connect the power cord to a properly grounded power source.
RUNNING YOUR A/C
Ensure your A/C system is turned off if you are not connected to a 120v
power source. You cannot run the A/C system off your batteries as it WILL
DRAIN YOUR BATTERIES in a very short period of time. In addition, your
A/C system has a high wattage requirement to startup which your batter-
ies cannot supply which may lead to damage to both your batteries and
your A/C. For more information on using your A/C system please see the
A/C section of this manual. There are no other 120v appliances or systems
built into the OP15 as standard.
GENERATOR (recommendation): If you are using a generator, we recommend a minimum size of 3500KW.
120 VOLT SHORE POWER
WINTERIZING YOUR BATTERIES:
PLEASE SEE THE WINTERIZATION SECTION OF THIS MANUAL UNDER CARE MAINTANENCE

PAGE: 12
INVERTER 12v to 120v
SWITCH LOCATION
Your OP15 has a 12v to 120v changeover switch and inverter installed
located in a compartment under the master bed, accessed by lifting the
mattress and removable panel.
TURNING ON INVERTER
To turn on your inverter, make sure the power button on the side of the
inverter is turned on.
NO 120V POWER SOURCE
If you are not connected to a 120v power source (either a shore power connection or a generator) the inverter will AUTOMATICALLY begin converting 12v cur-
rent from your batteries to 120v to supply any connected appliances connected to the 120v outlets.
RESERVE YOUR 12V BATTERY
To reserve your 12v battery power we recommend unplugging all 120v appliances if you are not connected to the 30amp shore power hook-up (unless you
are using them). These power-hungry appliances will deplete your batteries very quickly (even with the solar-assisted charging) so we recommend using this
functionality sparingly.
MONITOR YOUR AMP METER
Please pay close attention to your amp meter if you are running a 120v ap-
pliance via the inverter; try plugging each appliance in separately to check
its amperage draw to help you better understand and manage your power
supply.
On the control panel you will find the main 12v ON/OFF switch. There are
separate switches for the following 12volt operated appliances and systems
in the OP15: Fridge, Sockets, Lights, Water Pump.
12V OUTLETS & LIGHTS
• 2
• 2
• 1
4
1
1
2
2
3
3
4
voltage METER
AMP METER
UPGRADED TO LITHIUM BATTERIES:
SEE THE MANUFACTURERS RECOMMENDED BATTERY MONITORING APP FOR THE MOST ACCURATE BATTERY
INFORMATION

PAGE: 13
12 VOLT
MONITORING YOUR BATTERIES
The OP15 has three 100ah deep cycle marine batteries installed as well
as a fully automatic battery charge controller system. The Charge Wizard
allows you to control your charge levels. You will need to charge your
batteries for at least 24hrs prior to each trip using a 120volt shore power
connection to ensure that they are fully charged. The main control panel
has a battery volt-meter that will provide an indication of the charge level
of your batteries. A fully charged battery bank will be indicated by a full
battery symbol and the voltmeter reading around 13.7volts .
CAMPING WITH 120V -:
If you are at a campsite with shore power then we recommend connecting for the duration of your stay to keep your batteries fully charged.
CAMPING OFF-GRID 120
If you are camping off-site without 120volt power then the length of time
that your batteries will last will depend on how much 12volt energy you
use, how much solar power you are generating to recharge the batter-
ies (see below “Solar Power” Section), the ’health’ or condition of your
batteries 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 batteries to help you manage your power consumption.
BATTERY TIPS
ABOUT YOUR AGM BATTERIES
You have a 300 amp battery system. AGM batteries can reliably put out over 12.0v of power for 50% of their capacity. Most 12v appliances will require a 12volt
output from the batteries to work. This means you have 150 usable amp hours from a fully charged set of batteries. The indicator on your control panel will
show you how much total energy you have in your entire battery bank. This means that when your indicator shows 50% you have used all the usable power
within your battery bank. If you continue to drain power from your batteries beyond this point it can (and will most likely) cause damage to your battery bank
and some appliances will not work anymore.
BATTERY BANK / USABLE POWER
The battery indicator on your control panel will show how much energy is left in your battery
bank. It is important to note that it does NOT explicitly show how much USABLE power is left
in your batteries.
CONVERTER BATTERY CHARGER & CHARGE WIZARD
AGM battery lifespans are longer when they remain at full charge. Frequently discharging your batteries
and leaving them empty will accelerate the degradation process of your batteries and reduce their lifespan.
The Converter Battery Charger & Charge wizard installed in your OP15 will control the amount of charge
delivered to your batteries so that they do not over charge, therefore we recommend leaving your OP15
always plugged in at home where possible.
WINTERIZING YOUR BATTERIES:
PLEASE SEE THE WINTERIZATION SECTION OF THIS MANUAL UNDER CARE MAINTANENCE

PAGE: : 14
CO/LP ALARM
The CO/LP alarm is wired directly to the batteries. This means that turning the power to the OP15 off on the control panel will
NOT shut power off to the CO Alarm. Please follow the winterization process for battery care to ensure you are fully
disconnecting the batteries during long periods of storage.
The LP / CO detectors might go off from lack of air reaching the sensor. To override the beeping, you must remove the fuse
shown DO NOT FORGET to return the fuse to the correct operating position before using your trailer.
BATTERY TIPS
STORING YOUR BATTERY
If you are not keeping your OP15 plugged in whilst at home, we recommend that you disconnect
your batteries to maintain good battery health. Please see the care and maintenance section for
more information on this topic.
PRESERVING YOUR BATTERY ON THE ROAD
Always set your fridge to ‘LO’ before heading out on your trip and bring your fridge down
to the ‘LO’ temperature using an outlet in your house. This will use less power from your battery
and allow you longer off-site camping.
SOLAR POWER
300 WATT SYSTEM ON ROOF
There are three 100-watt 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 automatically trickle charge your batteries.
We recommend reading the user manual for your solar panels & charge
controller in full to understand the capabilities and settings for the solar
panels and charge controller
MONITOR SOLAR POWER
It is important to understand that the amount of power generated by your
solar panels will vary greatly depending on the amount and direction of
sunlight, time of day and ambient temperature. We recommend monitor-
ing your solar generated power to understand how much you are generat-
ing while using your battery power on extended trips.
I KEEP HEARING BEEP! BEEP! BEEP!
U P

PAGE: 15
WATER SYSTEMWATER SYSTEM
POTABLE WATER TANKS
The OP15 is fitted with two 31 gallon fresh water tanks mounted under the OP15 towards the middle
and rear of the trailer. The water tanks have two fill points located on the driver-side of the OP15 and
identified by a blue water faucet icon.
4 TANKS
POTABLE
-
POTABLE
-
BLACK
GREY
DRAIN HOSE
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
sanitize, flush and drain the water tanks before using and a minimum of every 6 months thereafter or if you suspect there’s an issue with the quality of
your water. Do NOT use bleach to sanitize the tanks as they are stainless steel and it will cause corrosion. Please see the OPUS Care & Maintenance sec-
tion of this manual for more information on sanitizing your water system. Failure to maintain your tank can result in death or serious injury.
12v WATER PUMP
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 flushable toilet (see each section on the following page for more
information 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 flow. Once the tap is closed, the pump will turn off until the tap is turned back on.
WARNING
Please turn off your pump at the main control panel when the water system is not in use as they will continue to use battery 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.
POTABLE
WINTERIZING YOUR WATER TANKS:
PLEASE SEE THE WINTERIZATION SECTION OF THIS MANUAL UNDER CARE MAINTANENCE

PAGE: : 16
TROUBLESHOOTING - AIR TENT ISSUESTROUBLESHOOTING - AIR TENT ISSUES
POTABLE
WATER SYSTEM
MONITOR YOUR WATER GAUGES
You can use the water gauges on the main control panel to check the water levels in each tank.
The tanks are gravity filled and included with your OP15 is a potable water fill hose which should also
be sanitized regularly. It is important to monitor the water levels in your tanks. When your water
tanks or empty please turn off your water pump. Running your pumps without water in the tank will
cause your water pumps to burn out. Please see the Troubleshooting section for tips if you are not
able to draw from your potable water tanks.
SELECTING A WATER TANK
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 junction of three water pipes. To select the FRONT tank, move the lever through
90° towards the F marking in the direction of the rear of the trailer. To select the REAR tank, move the
lever towards the R marking in the direction 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.
WARNING
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.
DRAINING YOUR POTABLE WATER TANKS
Located on each potable water tank you will find a draining valve at the lowest point of the tank. When packing away the OP15 complete the following pro-
cess to drain the system of any excess water.
A S
B O
C C
D D
E E
P
GREY
GREY WATER TANK
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 section of this manual
for more information on the kitchen sink drain. You should continually monitor the fill 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 find the gray water drain outlet on the gray water tank.
Please remember to dispose of gray water safely at dumping stations or other permitted outlets.
STORING YOUR GREY TANK
Only liquid run off from the shower and sink should be drained into your gray water tank. No other liquid is permitted 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 function of the tank and cause odor. Please see
refer to the OP15 Care and Maintenance section 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.

PAGE: 17
BLACK
BLACK WATER TANK
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 identified by the black tank drain valve. The capacity of the tank is 10 gallons
and the fill level can also be monitored using the gauge on the main control panel.
EMPTYING THE TANK
We recommend emptying your black tank when it is at least 1/2 to 3/4 full and after every camping trip.
Emptying your tank sooner may result in solid waste being left 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 caution when emptying to avoid contact with waste which can carry harmful
bacteria. The black tank must ONLY be disposed of in designated dump stations. At the rear of the
trailer is a holding tube for the black tank drain hose.
Located on each potable water tank you will find 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 off 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 emptied 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 section of this user manual for more information on draining and preparing your tanks for storage.
A. Remove the black tank hose from the storage tube by twisting the cap off
B. Connect the drain hose to the drain valve by twisting 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 until you can no longer hear liquid waste draining then close the valve completely. Close the valve at this point
BLACK TANK TIPS
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 connecting to a campground sewer we recommend keeping the tanks drain valve closed until you need to drain to assisting in purging the tank
of solid waste. Please see the ‘Bathroom’ section of this manual for more infor-mation on using your toilet.
WARNING
Do NOT leave waste in your tank during storage. Always remember to close the drain valve after draining the black tank and before removing the drain
hose. Your drain hose should also be regularly cleaned and sanitized. Do NOT use bleach to clean your black water tank. Please see the care & mainte-
nance section for further details on properly cleaning & sanitizing your black tank.
WINTERIZING YOUR WATER TANKS:
PLEASE SEE THE WINTERIZATION SECTION OF THIS MANUAL UNDER CARE MAINTANENCE
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