Grand Design IMAGINE XLS 2023 User manual

Table of Contents
Component Supplier Contact Information . . . . . . . . . . . . . . . . . . . . . . . 1
Component Manufacturer Warranty Information . . . . . . . . . . . . . . . . . . . 2
30 Amp PWM Solar Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Inverter - 2000 Watts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Furrion Tankless Water Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• Controller Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• Winterizing the Furrion Tankless Water Heater & Plumbing System: . . . . . . 9
• Antifreeze Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Water Heater, 6-Gallon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• Winterizing the 6-Gallon Water Heater & Plumbing System . . . . . . . . . . 17
Draining the Fresh Water System . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Sanitizing the Fresh Water System . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Universal Docking Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Water Heater Bypass Valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Winterization Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Travel Trailer Owner's Manual
UPDATE: 2023 ModelsUPDATE: 2023 Models
This UPDATE serves as a supplement to your Imagine Owner’s Manual,
Rev. 01/2022. It includes instructions for newly added components and
revised winterizing instructions.
This Owner’s Manual Update should be considered a permanent part
of the RV. If the RV is sold, the full Owner’s Manual, this Update, and the
Owner Information Package should remain with the RV for the next owner.

1
Component Supplier Contact Information
All component suppliers listed are correct at the time of printing. Grand Design RV may
change components at their discretion. Please contact GDRV Customer Support with
any questions.
Component Brand Supplier Website Phone Number
Air Conditioner Dometic dometic.com [phone]
Air Conditioner Furrion furrion.com [phone]
Awning(s) Lippert lci1.com [phone]
Axle Lippert lci1.com [phone]
Converter / Inverter WFCO wfcoelectronics.com [phone]
Cooktop /Griddle (Outside) Capitol customerservice.ddr.gmail.com [phone]
Entry Door / Entry Steps Lippert lci1.com [phone]
Entry Steps MORryde morryde.com (574) 29 3 -1581
Fireplace Innoflame davecarter.com [phone]
Frame / Chassis Lippert lci1.com [phone]
Frame / Chassis BAL RV Products Group norcoind.com [phone]
Furnace Dometic dometic.com [phone]
Graphics Vomella vomella.com [phone]
Load Center WFCO wfcoelectronics.com [phone]
Microwave High Pointe collins-n-co.com (5 74) 8 4 8 -1118
Power Tongue Jack Lippert lci1.com [phone]
Range Hood Furrion furrion.com [phone]
Range Top / Oven Combo Furrion furrion.com [phone]
Range Top / Range Hood Greystone wayinterglobal.com [phone]
Refrigerator - 12V Furrion furrion.com [phone]
Refrigerator - Compact Hotpoint mwss-inc.com [phone]
Refrigerator - AIM Norcold thetford.com [phone]
Roof Membrane Alpha Systems alphasystemsinc.com [phone]
Slide Floor Huber huberwood.com [phone]
Slideout(s) Lippert lci1.com [phone]
Solar Charging System Furrion furrion.com [phone]
Solar Charging System GoPower! dometic.com [phone]
Stereo Furrion furrion.com [phone]
Television TCL tclusa.com [phone]
Television Logix butlersales.biz (574) 252- 4274
Thermostat Dometic dometic.com [phone]
Thermostat Furrion furrion.com [phone]
Tires Goodyear lionsheadtireandwheel.com [phone]
Toilet Dometic dometic.com [phone]
TV Antenna Winegard Company winegard.com [phone]
Water Heater Furrion furrion.com [phone]
Water Pump Shurflo shurflo.com [phone]
Windows Cleer Vision Windows cleervision.com [phone]
Windows Lippert lci1.com [phone]
Service & Warranty

2
Service & Warranty
Component Manufacturer Warranty Information
Each manufacturer provides their own warranty for the components on your Imagine TT.
This warranty information is current at the time printing, but is subject to change at any time
per the manufacturer. Details can be found on the company websites listed or by contacting
them directly. See previous page, Component Supplier Contact Information.
Component Brand Manufacturer Warranty
Air Conditioner Dometic Two year limited warranty from date of purchase.
Air Conditioner Furrion Two year limited warranty from date of purchase.
Awning(s) Lippert One year limited warranty from date of purchase.
Axle Lippert Six year limited warranty from date of purchase.
Converter / Inverter WFCO Two year limited warranty.
Cooktop /Griddle (Outside) Capitol One year limited warranty.
Entry Door / Entry Steps Lippert One year limited warranty from date of purchase.
Entry Steps MORryde One year limited warranty from date of purchase.
Fireplace Innoflame One year limited warranty.
Frame / Chassis Lippert One year limited warranty from date of purchase.
Frame / Chassis BAL RV Poducts Group Three year limited warranty from date of purchase.
Furnace Dometic Two year limited warranty.
Graphics Vomella Five year limited warranty.
Load Center WFCO Two year limited warranty.
Microwave High Pointe One year limited warranty.
Range Hood Furrion One year limited warranty from date of purchase.
Power Tongue Jack Lippert One year limited warranty from date of purchase.
Range Top / Oven Combo Furrion One year limited warranty from date of purchase.
Range Top / Range Hood Greystone One year limited warranty.
Refrigerator - 12V Furrion Two year limited warranty from date of purchase.
Refrigerator - compact Hotpoint One year limited warranty.
Refrigerator Norcold One year limited warranty.
Roof Membrane Alpha Systems Eighteen year limited warranty.
Slide Floor Huber 25 year limited warranty, not to exceed the
OEM Warranty on the finished product.
Slideout(s) Lippert One year limited warranty from date of purchase.
Solar Charging System Furrion Two year limited warranty from date of purchase.
Solar Charging System GoPower! Five year limited warranty from date of purchase.
Stereo Furrion One year limited warranty from date of purchase.
Television TCL One year limited warranty.
Television Logix One year limited warranty.
Thermostat Dometic Two year limited warranty from date of purchase.
Thermostat Furrion One year limited warranty from date of purchase.
Tires Goodyear
No fault 12-month limited warranty from the
date of purchase. Five year limited warranty
from the tire manufacture date.
Toilet Dometic Two year limited warranty from date of purchase.
TV Antenna Winegard Company Two year limited warranty, Parts.
One year limited warranty, Labor.
Water Heater Furrion One year limited warranty from date of purchase.
Water Pump Shurflo One year limited warranty.
Windows Cleer Vision Windows One year limited warranty from date of purchase.
Windows Lippert One year limited warranty from date of purchase.

3
This page is intentionally blank.

4
Electrical Systems
30 Amp PWM Solar Controller (If So Equipped)
Reverse polarity of the battery terminals will cause the
controller to give a warning tone. Reverse connection of the
array will not cause an alarm but the controller will not function.
Failure to correct this fault could damage the controllerFailure to correct this fault could damage the controller.
OPERATING INSTRUCTIONS
YouYou must SET the battery type on the GP-PWM-30-SQSET the battery type on the GP-PWM-30-SQ
before you begin to use the controller.before you begin to use the controller. Please check your
battery manufacturer's specifications to select correct battery
type. The unit provides 6 battery types for selections: LTO, Gel,
AGM, LiFePO4, WET (conventional lead acid), and Calcium.
Setting The Battery Charging Profile
PRESS BATTERY TYPE button and HOLD for 3 seconds to
go into the battery type selection mode, the battery types you
select will be shown on the LCD meter. The controller will auto-
matically memorize your battery type setting. Incorrect batteryIncorrect battery
type setting may damage your batterytype setting may damage your battery.
When the controller powers on the unit will run self-test mode
and automatically show below items on LCD before going into
charging process. Refer to the Battery Charge Profile Chart
for details on each profile.
Please read and understand the manufacturer’s manuals
for the 30 Amp PWM Solar Controller and the Solar Panel
BEFORE using the Solar Power Charging System.
• Follow all safety alerts, warnings, and instructions
when using the Solar Power Charging System.
• Observe correct polarity at all times.
After going into charging process, the LCD displays the charging
states as below. Press VOLT / AMP button in sequence, the LCD
will display in turn with Battery Voltage, Charging Current, Charged
capacity (Amp-hour) and Battery Temperature (if an external
temperature sensor is connected).
•• Also see the manufacturer manual forAlso see the manufacturer manual for
BATTERY CHARGING PROFILE CHART,BATTERY CHARGING PROFILE CHART,
FAULT CODES, TROUBLESHOOTING, ETC.FAULT CODES, TROUBLESHOOTING, ETC.
Self-test starts, digital
meter segments test Software version test
Rated voltage Current test
DO NOT exceed
the GP-PWM30-SQ
Amp Current and
Max Voltage ratings.
The current rating of the
solar system is the sum
of the Maximum Power
Current (Imp) of the solar
PV strings in parallel. The
resulting system Imp
current is not to exceed
30A. The voltage of the
array is the rated open
circuit voltage (Voc) of
the PV array and is not
to exceed 25V.
If your solar system
exceeds these ratings,
contact your dealer for
a suitable controller
alternative.
NOTICE

5
Electrical Systems
Inverter - 2000 Watts (If So Equipped)
Your Imagine Travel Trailer, if so equipped, has a 2000 watt
inverter mounted next to the Universal Docking Station,
See photo, left.
• Please download and read the entire manufacturer’s
owner’s manual for detailed operating instructions and
safety warnings BEFORE using the inverter.
• The WF-5220 manual is found on the WFCO website:
https://wfcoelectronics.com/product-downloads/
Front Panel Back Panel
1AC Output 5DC Input +/-
2AC Input 6RVC
3Cassis Ground 7Remote Port
4Status LED 8Terminal Resistor
Power ON / OFF / Remote (Main) Switch
• The LCD remote control panel is found inside the forward
door-side pass-thru storage compartment.
• The input that comes from the (AC) Breaker Panel can’t be
controlled by the switch. Please disconnect Shore Power
before you operate the main inverter unit in order to avoid
an electric shock.
2000 Watt Inverter &
2nd Battery Disconnect When properly connected to the RV battery (or batteries) and
turned ON, the inverter transforms the direct current (DC) from
the batteries into a pure sine wave alternating current (AC).
This AC is similar to the voltage provided by your utility and is
used to power any electrical appliances (i.e., AC loads) connected
to the inverter’s output.
Switch the 2nd Battery Disconnect to the OFF position
when the inverter is NOT needed. See photo, upper left.

6
Electrical Systems
• Remember that the 2000 watt inverter can ONLY run
a maximum of approximately 16.4 amps.
• See page 87 in your Owners Manual,
Approximate Electrical Load Ratings.
1LED indicators - There is an LED indicator on the front panel
that lights solid to indicate the inverter is ON/OFF
2LED Display - The display is used for setting up the system
operation, as well as viewing current operating status and
fault conditions
3Unit ON/OFF Button - To Turn ON, PRESS for 0.5 seconds,
To Turn OFF, PRESS for 3 seconds.
4UP Button - Moves up in the menu tree.
5Down Button - Moves down in the menu tree.
6Enter Button - Go to the next page.
7Back Button - Go to the previous page.
8Unit Readings - LCD screen displays • Temperature• Temperature
• DC Voltage • Grid Input • Inverter Out • Fault Condition• DC Voltage • Grid Input • Inverter Out • Fault Condition
9Unit Setup - Sets inverter parameters
For battery recommendations and any further questions,
please contact your dealer or Grand Design RV Customer
Service.

7
Plumbing Systems Furrion Tankless Water Heater
Please read all safety and operating information provided
both here and in the manufacturer’s manual before using
the water heater. Based on the hot water demand, the tankless
water heater will heat incoming cold water to a desired output
temperature by monitoring key sensors to regulate the thermal
energy released over a large heat exchanger. This creates a more
useful and energy ecient heating system versus the conventional
tank water heater that wastes fuel during re-heat cycles and is
limited on volume output.
Controller Operation
Before normal operation of the appliance, perform a basic func-
tional test check out each time the RV and water system is setup
for use. Refer to “Functional Test” of this manual for instruction.
After the Functional test is completed, the appliance can be op-
erated from the wall controller which includes the Power switch.
The control switch can be used for in living “ON/OFF” function.
1. Touch power button to turn the power ON/OFF.
The Furrion logo on the panel will be illuminated and
display the current temperature setting.
NOTE: The micro processor is always on. It draws approximately
0.25 AMPs, but is advisable to turn o when not in use.
2. Touch button marked “°F/°C” to transform the temperature
display in °F or °C, the related LED would be lighted on the
controller.
3. Touch the or button to adjust the temperature
to your desired settings. The wall controller settings are
from 95°F (35°C) to 124°F (51°C).
On/Off Switch
Inside the Exterior Door Furrion Tankless Water Heater
Water Heater
Wall Controller
Suffocation
or Fire Hazard
Exhaust gases are hot
and contain carbon
monoxide, do not breathe
or obstruct the exhaust
gases.
Failure to follow this
instruction will lead to
serious injury, property
damage or death.
DANGER

8
Inside the Exterior Door Furrion Tankless Water Heater
Plumbing Systems
The temperature can be selected to operate
in two different methods:
Method 1:
Point of use mixing: Set the controller temperature to a desired
output temperature, typically elevated above comfortable bathing
temperatures. i.e. 115°F (46°C). Turn ON the hot water, once hot,
add cold water to achieve desired temperature.
Method 2:
Single point use: Set the controller temperature to a desired
output temperature for the faucet you want to use, typically
set to the desired bathing temperature. i.e. 100°F. The unit will
maintain the set temperature by use of the hot water faucet
only, no need to mix cold water.
4. Turn on the water faucet(s) and use as desired. The water
temperature exiting the appliance (not faucet) will display.
Safe Operation
Consider the following points for safe use of the appliance:
• Install an RV water regulator to the inlet of the coach,
and operate between (35-70PSI).
• The factory default water temperature setting is 115°F (46°C).d
• There may be a variation between the temperature delivered
from the appliance and the temperature at the faucet due to
water conditions between seasons like hot summer or the
length of pipe from the appliance.
• Always check the water temperature, in reference to the
chart below, by the display (step 3/4) and hand touch before
bathing or with other hot water uses.
Temperature °F (°C) Time before skin becomes scalded
155°F (68°C)1 Second
148°F (64°C)2 Seconds
140°F (60°C)5 Seconds
133°F (56°C)15 Seconds
127°F (52°C)1 Minute
124°F (51°C)3 Minutes
120°F (48°C)5 Minutes
100°F (37°C)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.
If the information in the
manufacturer 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
flammable vapors and
liquids in the vicinity of
this or any other
appliance.
WHAT TO DO IF YOU
SMELL GAS:
• Evacuate all persons
from vehicle.
• Shut o gas supply at
gas container or source.
• DO NOT touch any
electrical switch, or use
any phone or radio in
vehicle.
• DO NOT start vehicle’s
engine or electric
generator.
• Contact nearest gas
supplier or qualified
service technician for
repairs.
• If you cannot reach a
gas supplier or qualified
service technician,
contact the nearest fire
department.
• DO NOT turn on gas
supply until gas leak(s)
has been repaired.
• Installation and service
must be performed by
a qualified installer,
service agency or the
gas supplier.
WARNING

9
Plumbing Systems Furrion Tankless Water Heater, Continued
Winterizing the Furrion Tankless Water Heater
& Plumbing System:
The Water Heater Bypass Vales (located on the back
of the water heater) MUST be kept in the "Normal Position"
NOT the "Bypass Position." Also see page 22.
Supplement the following important water heater instructions
when completing any winterizing steps:
FOR WINTERIZING: Drain & Blow Out Water Heater
1. CLOSE all faucets & low point drains.
2. REMOVE the Water Heater Drain Plug and
the Filter Cover. See the Diagram, left.
3. APPLY no more than 30 PSI of air to the City Water
Connection at the Universal Docking Station.
• After water stops draining from
the Water Heater, SHUT OFF air.
Adding RV Antifreeze to the Furrion Tankless Water Heater:
4. REINSTALL the drain plug and filter cover.
5. ACCESS your Water Pump. (Location varies by floorplan)
• The Winterize Valve & Suction Hose
are found on the intake side of pump.
a. If pump is located under the Dinette Bench:
REMOVE cushions and LIFT seat panel.
b. If pump is located behind the Universal
Docking Station: UNSCREW & REMOVE the access
panel located in your pass-through compartment.
c. If pump is located behind the Kitchen Drawers:
REMOVE the three drawers from the base cabinet:
i. PULL OUT the drawer until it stops.
ii. LOCATE the plastic drawer release clips
on the right and left sides of the drawer, then
iii. At the same time, gently PUSH and HOLD down
both plastic drawer release clips.
iv. Continue to PULL the drawer towards you
and remove it from the drawer guides.
v. REPE AT steps (i - iv) to remove
the remaining kitchen drawers.
6. REMOVE the re-usable cap from the Suction Line.
(SAVE the cap for step 14.)
Both automotive antifreeze
(ethylene glycol) and
windshield washer anti-
freeze (methanol) are
poisonous.
NEVER use these products
in your fresh water system.
They are harmful and may
be fatal if swallowed.
WARNING
Drawer Release Clips
Air Compressor Hose
with Pressure Gauge

10
Plumbing Systems
7. PLACE the end of the Suction Line into a container
of RV antifreeze.
8. TURN the Winterize Valve to the OPEN position.
◦As shown on page 23.
9. Turn ON the 12-volt Water Pump.
10. OPEN the * hot water line at each faucet.
(Kitchen, Lavatory, Shower, &Outside Faucet/Spray Port)
◦CLOSE each * hot water line faucet when
RV antifreeze begins to flow continuously.
11. REPE AT Step 10 with the * cold water lines on
all faucets. It is also important to run RV antifreeze
through the Toilet and the Sink/Shower Drains.
12. Turn OFF the 12-volt Water Pump.
When you are done adding RV antifreeze
13. REMOVE the Suction Line from the container
of RV antifreeze.
14. REPLACE the cap on the end of Suction Line.
15. BLOW OUT the black tank flush line at the outside
connection with compressed air (max 70 PSI).
16. To prevent staining, CLEAN any RV antifreeze from the
sinks, shower (or tub), and toilet using a soft, dry cloth.
17. OPEN then CLOSE kitchen hot water faucet
to release pressure in water line.
18. REMOVE the water heater drain plug and allow
RV antifreeze to drain.
19. DO NOT replace drain plug / SAVE drain plug for re-use.
DO NOT USE YOUR WATER HEATER WHILE THE SYSTEM
IS WINTERIZED. Heating when filled with antifreeze (or while
drained) may cause unwarrantable damage to the water heater
and/or other components of the plumbing system.
Next Season:
• Thoroughly FLUSH the water heater and system with clean
drinking water through the hot and cold side before using.
• FILL water heater at City Water Connection & DRAIN
several times. See draining steps 17-19 (above).
• SANITIZE the water system per the recommendations
of your coach manufacturer. See page 20.
It is important
to read all
instructions &
understand each
step before you begin the
winterization process. It
may be easier to winterize
the RV with a second
person to assist you.
If you still have questions
or concerns, contact your
dealer for assistance.
Before you begin
Winterizing:
If you have installed
an aftermarket Water Filter,
make sure that it is set to
the bypassbypass position.
KEEP the Tankless
Water Heater
Bypass Valves in
the Normal Position
(Bypass Valve Handles
Turned Towards
The Water Heater)

11
Plumbing Systems Furrion Tankless Water Heater, Continued
Water Control Valve
The Water Heater is equipped with a water flow
control valve, set from the factory at MAX flow.
The valve will reduce the water flow and capacity
through the water heater to improve water heating
performance. Under extreme conditions, it may be
necessary to adjust the valve accordingly:
• Cold water inlet conditions approximately
less than 45°F (7°C)
• Higher water inlet pressures >65 PSI.
To operate (Fig. 30):
• REDUCE water flow: Rotate knob
clockwise until a solid stop.
• INCREASE water flow: Rotate knob
counter clockwise until a solid stop.
High Altitude Use
This appliance can be used at high altitude and has been tested
up to 4500ft. For prolonged use at higher altitudes please contact
[e-mail]
Antifreeze Function
(for FWH09AFA and FWH09AFA-AM models onlyfor FWH09AFA and FWH09AFA-AM models only)
• The water heater can be used in freezing conditions, by
operating a burner sequence program to keep the water
liquid. This function turns ON automatically when water
in the appliance falls below 43°F (6°C), then automatically
shuts OFF when it is warmed.
• It will likely be necessary to manually adjust the water con-
trol valve to the "min" setting when using the water heater
in freezing conditions.
• If the RV is to be stored, with no use, the water heater
must be winterized appropriately per the instructions
on page 9.
• The freeze protection system only protects the water heater
appliance from freezing and will NOT prevent freezing of the
water system in the coach. Ensure the coach is properly
insulated and protected from freezing conditions.
• It is normal for the water heater to operate the burner
system at dierent frequencies and duration for this mode.
NOTE: The antifreeze function is inoperable if any
of the following are turned OFF:
• Water Heater Appliance
• 12V+ house electric
• Gas Supply
NOTICE
PRODUCT DAMAGE
DUE TO FROST
CONDITION
In frost conditions,
ambient temperatures
below 39°F (4°C), there
is a risk that water in
pipes, faucets and
appliance could
freeze.
This can cause
considerable damage.

12
Plumbing Systems
Storage and Transit
Anytime the RV is not intended to be used, it is considered to
be in storage or transit. To prepare the water heater, follow the
below steps:
1. Turn o gas supply.
2. Turn o water heater main switch.
3. Drain water out of the system and
water heater by removing the filter
cover and drain plug (Fig. 31)
4. If freezing conditions could occur,
then then the water heater must be
winterized appropriately per the
instructions on page 9.
Routine Inspection
Routine inspection is critical for maintaining proper operation
of your appliance. Unless specified, review the following items
yearly or before each season:
1. Inspect the gas system and installation every two years,
or otherwise specified by your RV coach manufacturer,
by a qualified personnel.
2. Inspect for cracks, separation, peeling of seals to the RV
wall. Remove and re-seal as necessary (caulking or tape)
between the side wall and the door of the water heater
and ensure that the unit is solidly mounted to the vehicle.
3. Verify that the air inlet openings (louvers) are completely
open and clear of any debris including mud, leaves, twigs,
insects, etc. Remove all obstructions to allow full air flow.
4. Insects, including wasps and spiders, can build nests in
the exhaust tube outlet which will aect the performance
of the unit. Inspect the flue outlet tube to make sure that
it is unobstructed and that the screen is clean. If debris
or insects are present, clean and vacuum to remove any
remaining debris. The use of any type of after-market
screen to cover the vent is not permitted and will void the
warranty.
5. Open the door and verify that no debris or extraneous
combustible materials are present anywhere (especially in
the area of the burner and the gas controls). Remove any
item present and wipe clean the bottom of the housing.
6. Inspect the interior surface of the housing for any cracks
or corroded areas that could allow penetration of gases
into or out of the interior of the vehicle.
• Check especially around the hot water, cold water,
gas and electrical connections.
• NOTE: If damage is found, please contact a technician
to repair or contact Furrion customer service.
Burn or Scald Hazard
• NEVER perform work
while the water heater
is operating.
• NEVER perform work
without turning the
Electrical and LP
gas supply o.
• NEVER perform work
when the appliance
is hot.
• NEVER actuate the
pressure relief valve as
long as the appliance
is still hot.
• NEVER actuate the
Drain Plug as long as
the appliance is under
water pressure and/or
is still hot.
WARNING
Always wear protective
gear such as gloves,
eyewear and clothing
to avoid injuries during
installation and servicing
of the product.
CAUTION

13
Plumbing Systems Furrion Tankless Water Heater, Continued
7. Check that all wire connections are firmly in place and there are
no signs of chafing or cracks on the insulation. Verify that the
spark ignition cable between the Control Board and the igniter
is securely in place and not shorted to any metal component.
11. A sealing ring is assembled on the chimney. (Fig. 34)
Inspect to make sure the seal does not have any
cracks or breaks, and that it is in good condition.
Contact Furrion for replacement.
NOTE: When installing the seal, make sure the words
“INSIDE” are facing inward.
Filter Cleaning
There is a filter screen on the Water Heater inlet water line
connection. The filter screen needs to be cleaned periodically
to prevent blockages from forming. Follow below steps below
to clean the filter (Fig. 35) :
1. Step 1: Open the door of the
Water Heater, remove the bae.
2. Step 2 : Unscrew the filter cover by hand
or a proper tool counter clockwise.
3. Clean the screen filter by flushing any
debris accumulated.
Burn or Scald Hazard
• Never actuate the pres-
sure relief valve while the
appliance is in operation.
• Never tamper with the
pressure relief valve.
WARNING
8. Inspect the pressure safety valve to ensure
it has not been leaking (no water residue).
See “Pressure Safety Valve Maintenance”
for further inspection. (Fig. 32)
9. Inspect/clean/replace water inlet filter as
necessary, see “Filter Cleaning” section.
10. Turn on the power to the water heater and open a hot water
faucet to inspect the flame of the burner. The flame should
be of the normal bluish appearance that indicates proper
combustion. This can be accomplished by removing the water
heater door and bae to observe the flames by looking at
the burner under the edge of the heat exchanger. (Fig. 33)

14
Plumbing Systems
Pressure Safety Valve Maintenance
1. The unit is equipped with a water pressure safety valve.
The pressure safety valve needs to operate once each
year to ensure this safety device is eective.
2. The pressure relief valve is a safety component and must
not be removed for any reason other than replacement.
NOTE: The pressure relief valve must be replaced by
a certified service technician if defective.
3. Tampering with the pressure relief valve
will void the warranty.
4. On the back of the water heater:
ROTATE the pressure safety valve handle (Red)
about 3~5 times counterclockwise. (Fig. 36)
Check the drain hose for water. (Fig. 37)
Water in the drain hose indicates the pressure
safety valve is working properly.
NOTE: Never actuate the drain plug as long as the
appliance is still hot.
Hard Water and Decalcification
For prolong usage, when exposed to higher water hardness
concentrations, it is advised to provide a proper water treatment
device for the incoming water to the coach.
• Hard water may lead to performance reduction
of your appliance overtime.
• Contact Furrion for decalcification instructions.

15
Plumbing Systems Water Heater, 6-Gallon (If So Equipped)
It is important to know which type of Water Heater is installed
in your RV. Read all safety and operating information provided
both here and in the manufacturer’s manual before using the
water heater. The water heater is designed to heat water quickly
and eciently. It’s temperature is preset by the manufacturer. Your
RV’s water heater is turned ON & OFF on the Monitor Panel.
DO NOT operate the Water Heater while empty.
This can result in damage to the tank and/or controls
that is NOT covered under the warranty.
• CHECK that the Water Heater is filled with water before use;
• ALWAYS open both the hot and cold water faucets when
filling the fresh water tank to allow air pockets to be forced
out of the water heater.
Draining and winterization
• If the RV will be stored over the winter, the Water Heater
must be drained to prevent damage from FREEZING.
• When WINTERIZING, it is recommended to bypass the
Water Heater and remove the Anode Rod (if equipped),
particularly if introducing RV antifreeze into the plumbing
system.
Odor from the hot water system
The running water from some fresh water sources may have a
rotten egg smell. This is known as sulfur water. The oder is caused
by Hydrogen Sulfide gas (H2S) in the water, usually the result of
bacteria or chemical action. Generally, sulfur water is not harmful,
only unpleasant to smell. Hydrogen Sulfide (rotten egg) odor
is not a service problem.
See page 162 in your Owners Manual, Basic Troubleshooting,
Water Heater. Also refer to the water heater manufacturer's
owner manual for details on flushing to remove unpleasant odor.
High altitude deration
Your water heater is designed to work at elevations up to 4500 ft.
above sea level. At higher altitudes there is less oxygen in the air.
An inadequate supply of oxygen causes the air-fuel mixture to be
out of sync, which compromises combustion and can produce
Carbon Monoxide. At higher elevations, the water heater may
require derating (a modification to compensate for the lack of
oxygen in the air).
If you smell propane gas,
STOP immediately!
Follow the procedures listed
in the Propane System
section of this manual
before attempting to
operate the water heater.
Hydrogen gas may result
if you have NOT used
the water heater for
two weeks or more.
HYDROGEN GAS IS
EXTREMELY FLAMMABLE.
To reduce the risk of injury
under these conditions,
open the hot water faucet
for several minutes at the
kitchen sink before you use
any electrical appliance
connected to the hot water
system.
If hydrogen is present, you
may hear what sounds like
air escaping through the pipe
as the water begins to flow.
Hydrogen gas may be
present even after water has
been drained from the water
heater tank.
Open the faucet at the sink
and allow the system to vent
for five to ten minutes.
DO NOT smoke or have any
open flame near the open
faucet while venting.
On DSI water heater models,
make sure the switch is OFF.
WARNING
WARNING

16
Plumbing Systems
If the water heater is not properly derated, poor eciency in
heating the water may occur due to incomplete combustion.
You may also notice pilot outage caused by burner lift-o or
sooting from a yellow burner, indicating the possibility of
carbon monoxide.
For proper change out of the orifice (derating)consult with
a local propane company, your dealer, or the water heater
manufacturer.
IMPORTANT NOTE: Once the RV is returned to lower elevation
(below 4500 feet) any high altitude deration or other the water
heater adjustments must be reversed for proper operation.
Pressure & Temperature Relief Valve
The Pressure and Temperature Relief Valve (P & T Valve) is a
safety requirement for all water heaters. As cold water is heated,
pressure in the water heater tank increases. The P & T Valve will
release any unsafe pressure from the water heater tank.
It is normal for a small quantity of water to also be released from
the P& T valve during the heating cycle. To reduce water dripping
from the P & T relief valve:
• Maintain an air pocket at the top of the water heater.
(refer to the manufacturer’s manual).
◦This air pocket forms in the tank by design.
◦Everyday use of your water heater will reduce
this air pocket over time.
If the weeping persists, consult your dealer or a service
agency authorized by the water heater manufacturer.
Pressure and Temperature
Relief Valve
DO NOT replace any
component part with
an accessory part that
is not authorized by the
water heater manufacturer,
such as an add-on electric
heating element.
Such items are not approved
to be installed and could
create an unsafe condition
and will void all warranties.
WARNING
Water temperatures over
125°F (49°C) can cause
severe burns instantly or
even death from scalds.
BE CAREFUL WHEN
USING HOT WATER.
ALWAYS test the water
temperature BEFORE
showering or washing.
WARNING
Exterior Water
Heater Door
(see photo below)
If the water heater does not
work, make sure the power
switch is in the ON position.

17
Plumbing Systems Water Heater- 6 gallon (If So Equipped), Continued
Water heater bypass valves
The water heater bypass uses two (2) valves, located on the
back side of the water heater.
Also see page 22, Water Heater Bypass Valves.
• When camping, use the Normal Use position.
TURN BOTH bypass valve handles towards
the water heater as shown:
• When Winterizing or Sanitizing the 6 Gallon Water Heater,
use the Bypass position. TURN BOTH bypass valve handles
towards the hot & cold water lines as shown:
Winterizing the 6-Gallon Water Heater
& Plumbing System
Important: Winterizing method varies depending on theWinterizing method varies depending on the
type of Water Heater installed in your RV.type of Water Heater installed in your RV. Also see:
• Page 9, Winterizing the Furrion Tankless Water Heater
& Plumbing System
• Page 23 , Winterization Valve.
Preparing your RV for storage is very important in climates that
experience cold weather. Follow the steps listed below at the end
of the camping season:
• ALWAYS winterize the fresh water system of your RV
BEFORE exposure to temperatures at or below 32°F (0°C).
◦Damage to the water supply lines or water heater
due to freezing is not covered under warranty.
• Winterize with RV Antifreeze ONLY, no other products
should ever be added to your fresh water system.
◦Make sure to have enough RV antifreeze to winterize
all fresh water lines. Several gallons may be required.
Bypass Positions
6 Gallon Water Heater6 Gallon Water Heater
Bypass ValvesBypass Valves
(Bypass Position Shown)
Hot Out
Hot Out
Cold In
Cold In
Normal Use Positions