Suburban NAUTILUS IW60 Operating instructions

Part Number 205256
10-31-2017
INSTALLATION AND OPERATION MANUAL
NAUTILUS ON DEMAND WATER HEATER
(IW60) DIRECT VENT GAS
with DIRECT SPARK IGNITION
FOR INSTALLATION IN RECREATIONAL VEHICLES
AIRXCEL, INC. - SUBURBAN DIVISION
676 Broadway Street • Dayton, Tennessee 37321
423-775-2131 • www.Airxcel.com
FREEZE WARNING
Drain or ll with RV approved antifreeze
if subject to freezing temperatures when
storing for winter.
WARNING
Installation of this appliance must be made
in accordance with the written instructions
provided in this manual. No agent,
representative or employee of Suburban or
other person has the authority to change,
modify or waive any provision of the
instructions contained in this manual.
Improper adjustment, alteration, service,
maintenance or installation can cause
serious injury or death.
Read and follow all instructions and
precautions in this manual. Installation and
service must be performed by a qualied
service agency or the gas supplier.
AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER
HEATER.
INSTALLER: AFFIX THESE INSTRUCTIONS TO OR ADJACENT
TO WATER HEATER.
OWNER: RETAIN THESE INSTRUCTIONS AND WARRANTY FOR
FUTURE REFERENCE.
ALL TECHNICAL AND WARRANTY QUESTIONS SHOULD BE
DIRECTED TO THE COMPANY LISTED ON THE WARRANTY OR
RATING PLATE WHICH CAME WITH YOUR WATER HEATER.
WARNING
Failure to follow safety warning exactly
could result in serious injury, death or
property damage.
— Do not store or use gasoline or
other ammable vapors and
liquids in the vicinity of this or any
other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Evacuate all persons from the
vehicle.
• Shut o󰀨 the gas supply at the gas
container or source.
• Do not touch any electrical switch,
or use any phone or radio in the
vehicle.
• Do not start the vehicle’s engine
or electric generator.
• Contact the nearest gas supplier
or qualied service technician for
repairs.
• If you cannot reach a gas
supplier or qualied service
technician, contact the nearest
re department.
• Do not turn on the gas supply until
the gas leak(s) has been repaired.
— Installation and service must be
performed by a qualied installer,
service agency or the gas supplier.

WARNING
Be sure the power is “OFF” to the water heater
ignition system during any type of refueling and
while vehicle is in motion or being towed.
The thermostat on your water heater is
adjustable. It is a temperature sensing limit
designed to maintain a water temperature of
120°F (48°C) from the factory. (See Operating
Instructions) Water temperatures over 125°F
(52°C) can cause severe burns instantly or
death from scalds; therefore, be careful when
using hot water. Children, disabled and elderly
are at highest risk of being scalded. Always feel
water before bathing or showering.
INSTALLATION REQUIREMENTS
WARNING
Installation of this appliance must be made in
accordance with the written instructions provided
in this manual. No agent, representative or
employee of Suburban or other person has
the authority to change, modify or waive any
provision of the instructions contained in this
manual.
CAUTION
A Suburban vent cap must be installed on the unit and all
side inspection panels must be in place for proper water
heater operation.
If possible, do not install the water heater to where the
vent can be covered or obstructed when any door on the
trailer is opened. If this is not possible, then the travel
of the door must be restricted in order to provide a 6”
minimum clearance between the water heater vent and
any door whenever the door is opened.
Due to the di󰀨erences in vinyl siding, this appliance should
not be installed on vinyl siding without rst consulting with
the manufacturer of the siding or cutting the siding away
from the area around the appliance vent.
In any installation in which the vent of this appliance can
be covered due to the construction of the RV or some
special feature of the RV such as slide out, pop-up etc.,
always insure that the appliance cannot be operated by
setting the thermostat to the positive “OFF” position and
shutting o󰀨 all electrical and gas supply to the appliance.
Do not install this appliance to where the vent terminates
below a slide-out. This appliance is not to be installed
under any overhang. It must be free and clear of any type
overhang.
SAFETY WARNING
Should overheating occur, or the gas supply
fail to shut o󰀨, shut o󰀨 the manual gas valve to
the appliance before shutting o󰀨 the electrical
supply.
Do not use this appliance if any part has been
submerged under water. Immediately call
a qualied service technician to inspect the
appliance and to replace any part of the control
system and any gas control that has been
submerged under water.
Do not alter the operation of your water heater
nor change the design/construction of your
water heater. Accessories are being marketed
for RV products which we do not recommend.
For your safety, only factory authorized parts
are to be used on your water heater.
Periodically inspect the vent for obstructions
or presence of soot. Soot is formed whenever
combustion is incomplete. This is your visual
warning that the water heater is operating in an
unsafe manner. If soot is present, immediately
shut the water heater down and contact your
dealer or a qualied service person.
When considering add-on rooms, porch or patio,
attention must be given to the venting of your
water heater. For your safety, do not terminate
the vent on your water heater inside add-on
rooms, screen porch or onto patios. Doing so will
result in products of combustion being vented
into the rooms or occupied areas.
Never operate the appliance if you smell gas.
Do not assume that the smell of gas in your
RV is normal. Any time you detect the odor of
gas, it is to be considered life threatening and
corrected immediately. Extinguish any open
ames including cigarettes and evacuate all
persons from the vehicle. Shut o󰀨 gas supply at
LP gas bottle. (See Safety notice on front cover
of this manual.)
WARNING
Do not store or use combustible materials
or liquids near or adjacent to this heater. The
appliance shall not be installed in any location
where ammable liquids or vapors are likely to
be present.
2

This installation must conform with the requirements of the authority having jurisdiction
or in the absence of such requirements with the latest edition of the National Fuel
Gas Code ANSI Z223.1/NFPA 54; and the latest edition of the American National
Standard for Recreational Vehicles NFPA 1192.
In Canada, the installation should conform with the following standards:
A. For installation in Recreational Vehicle
1. Gas - CSA standard CSA Z240.4.2-08 Installation Requirements for Propane
Appliances and Equipment in Recreations Vehicles.
2. Electrical - CSA standard C22.2 No. 148/Z240.6.2-08/C22.2 No. 148-08
Electrical Requirements for Recreational Vehicles.
3. Plumbing - CSA standard CSA Z240.3.2 Plumbing Requirements for
Recreational Vehicles.
B. The appliance shall be disconnected from the gas supply piping system during
any pressure testing of the system.
C. The appliance and its gas connections shall be leak tested before placing the
appliance in operation.
D. All air for combustion must be supplied from outside the structure. Air for
combustion must not be supplied from occupied spaces.
E. Minimum clearance from combustible construction on sides and top - 1/4 inches.
Provide room for access to rear of heater and at left side for servicing.
F. Choose a location for installation out of the way of wires, pipes, etc. that might
interfere with the installation.
G. When an appliance is installed directly on carpeting, tile or other combustible
material, other than wood ooring, the appliance shall be installed on a metal
or wood panel the full depth of the appliance. If preferred the carpeting, tile or
combustibles materials, other than wood may be cut away the full length of the
appliance plus the appliance minimum clearances to combustibles.
H. Good grounding of the unit is recommended to mitigate static charge built up by
attaching a 12 gage ground wire to the unit case at the green grounding screw
shown in Figure 5 and securely fasten the ground wire to the RV metal frame.
I. Do not install the water heater with the vent facing toward the forward end of the
coach. See Figures 1, 2 and 3.
J. There must be access for removing unit for service.
INSTALLATION WITHOUT REPLACEMENT PANEL
1. Locate area for installation of the unit. The unit should be installed as close to wall
as possible. Mark wall as shown in Figure 4 and cut a 3.750" Diameter hole for vent
installation. On mesa or yoder type side walls, it may be required to atten area
where vent is to be installed to assure seal around vent assembly.
2. Place unit on oor (verify vent cap lines up with exhaust tube and combustion air
opening in unit).
a. Drain lines must be connected to the system and condensation drains on
the On Demand water heater and ran to the outside of the RV. Drain Lines
should be as short as possible and must maintain a drop of ¼” per foot from
unit. See Figure 5.
3. Install vent assembly. See Figure 6.
a. Vent cap must be ordered separately. See TABLE 1 for vent sizes and part
numbers. A minimum overlap of 1.25" is required on exhaust.
b. Apply a bead of silicone around the vent cap as shown in Figure 6.
c. Install vent cap as shown in Figure 6 with screws. Insure assembly is sealed
to outside wall to prevent leaks.
4. Screw the front of the unit to the oor using the two brackets as shown in Figure 5. If
necessary, the brackets can be moved to the rear of the unit as shown in Figure 7B.
5. Make gas, water and electrical connections following instructions contained in
this manual supplied with the Suburban NAUTILUS (IW60) On Demand Water
Heater.
INSTALLATION USING REPLACEMENT PANEL
A replacement panel is used when replacing Suburban 6, 10, 12, and 16 gallon tank
units and Atwood Style 6 and 10 gallon tank units.
1. On mesa or yoder type sidewalls, atten the wall area around the opening.
2. Apply a continuous line of suitable caulk on the RV wall around all four sides
of the opening and around back side of replacement panel frame as shown in
Figure 8. Required to create water tight seal of the frame to the RV wall.
3. Center and insert caulked replacement panel frame into opening. Push frame
rmly against RV wall over caulking previously applied in step 2. Secure frame
with the eight (8) supplied screws into RV wall as shown in Figure 8.
4. Locate the water heater cabinet approximately even with the inside RV wall.
See Figure 7B. If securing the unit to the oor using the FRONT mounting
brackets, proceed to STEP 5. To mount the water heater using the REAR
mounting method, remove the two mounting brackets from the front of the unit
and secure them to the threaded holes at the rear of the unit. Screw the rear of
the unit to the oor using the two brackets. See Figure 7B.
5. Using the gasket supplied with the kit, apply the gasket beginning at the center
bottom of the replacement panel frame. Adhere the adhesive side of the gasket
to the replacement panel frame and install the gasket all the way around the
frame. Insure the ends of the gasket meet at the center bottom of the access
panel frame.
6. Attach the replacement panel to the frame as shown in Figure 8 using the ve
(5) screws provided.
7. Vent cap must be ordered separately. See Table 1 for vent sizes and part numbers.
There must be a minimum of 1.25" (31.8mm) overlap of vent assembly tube over
exhaust tube on the On Demand Water Heater and the replacement panel must
compress the replacement panel gasket. See Figure 7A.
a. Apply a bead of silicone around the vent cap as shown in Figure 8.
b. Install vent cap as shown in Figure 8 with four (4) screws. Insure assembly
is sealed to outside wall to prevent leaks.
8. Screw the front of the unit to the oor using the two brackets as shown in Figure 5.
9. Apply silicone caulk around the beveled edges of the replacement panel as
shown in Figure 8. Do not caulk the bottom of the replacement panel.
10. Make gas, water and electrical connections following instructions contained in this
manual supplied with the Suburban Nautiluis IW60 On Demand Water Heater.
11. Drain lines must be connected to the system and condensation drains on the On
Demand Water Heater and ran to the outside of the RV. Drain Lines should be
as short as possible and must maintain a minimum drop of ¼” per foot. (6.4mm
per 305mm) from unit. See Figure 5.
ACCESS PANEL PART NUMBERS
BRAND CAPACITIES PART NUMBER
SUBURBAN 6 GALLON 6276APW (Polar White)
SUBURBAN 10, 12, 16 GALLONS 6277APW (Polar White)
ATWOOD 6 GALLON 521147 (Polar White)
ATWOOD 10 GALLON 521150 (Polar White)
VENT CAP PART
NUMBER
VENT CAP
LENGTH "X" MAX DIMENSION
260616 0 - 1 inches 1.171 inch
260617 1 - 2 inches 2.171 inch
260618 2 - 3 inches 3.171 inch
260638 5 - 6 inches 6.171 inch
TABLE 1
MAKING ELECTRICAL CONNECTIONS
12 VOLTS D.C.
A. The electrical connections must be made in accordance with local codes and
regulations. In the absence of local codes and regulations, refer to the latest
edition of the National Electrical Code NFPA 70.
In Canada, the electrical installation should conform with CSA standard Z240.6.2-
08/C22.2 No. 148-08 Electrical Requirements for Recreational Vehicles.
B. Make the 12 Volt D.C. electrical connections following the wiring diagram
illustrated in Figure 11.
If the power supply is to be from a convertor, we recommend that the converter
system be wired in parallel with the battery. This will serve two purposes:
1. Provide a constant voltage supply
2. Filter any A.C. spikes or volt surges
We recommend insulated terminals be used for all electrical connections.
INSTALLATION OF SWITCH AND LIGHT
ASSEMBLY (SEE FIGURE 12)
1. ON/OFF switch is wired as shown in wiring diagram. See Figure 11.
2. There is a connection for a lockout light. (If used, this light will come on if the unit
goes into lockout. Water must be turned o󰀨 and back on to re-cycle the unit.)
3. Connect ORANGE wire to LED lamp (+) and BLUE wire to LED lamp (-).
INSTALLATION OF OPTIONAL ON DEMAND
CONTROL CENTER (SEE FIGURE 13)
WARNING
Do not use on circuits exceeding specied voltage.
Higher voltage will damage control center and could
cause shock or re hazard. Do not short out terminals
on gas valve or primary control to test. Short or incorrect
wiring will damage thermostat and could cause personal
injury and/or property damage.
1. On Demand Control Center is wired as shown in wiring diagram. See Figure 11.
2. Locate the On Demand CONTROL CENTER on a wall surface adjacent to the
On Demand water heater.
3. Remove back cover from control center by depressing latch at bottom.
4. Remove center knockout from back cover. Drill hole for wiring from control
center. See Figure 14.
5. Mount back cover to the wall.
6. Route wiring through back cover and hole into wall.
7. Connect the two white wires from the On Demand Control Center to the two
white wires from the On Demand water heater. See Figure 11.
The optional On Demand CONTROL CENTER displays the water temperature and
also allows outlet water temperature to be adjusted (130°F maximum).
ON DEMAND CONTROL CENTER PART NUMBER
BLACK 161253
WHITE 161252
MAKING DRAIN CONNECTIONS
A. Drain connections are made at the front of the water heater. Refer to Figure 5.
Connect 5/8” ID hose to system drain tting provided on front of unit. Connect
½” ID hose to condensation drain tting provided on front of unit.
B. Drain lines must run to the outside of the RV. Drain lines should be as short as
possible and must maintain a minimum drop of ¼” per foot. (6.4mm per 305mm).
See Figure 5.
MAKING WATER CONNECTIONS
A. Water connections are made at the front of the water heater. Refer to Figure 5.
Connect the hot and cold water lines to the 1/2” NPT female pipe tting provided
on front of unit. These ttings are marked “HOT” and “COLD”.
3

IMPORTANT: Use a pipe thread compound suitable for potable water or pipe thread
tape on all connections to assure they will not leak.
B. For ease of removal, it is suggested that a pipe union be installed in each water line.
C. Fill system with water. Open both hot and cold water faucets to expel air from
system. When system is lled and water ows from faucets, close both faucets
and check all connections for leaks.
CAUTION
If you use air pressure to check for leaks, the
pressure must not exceed 30 PSI in accordance with
NFPA 1192.
NOTE: After leak testing, drain water from system. See Figure 10. Please refer to
the DRAINING AND STORAGE INSTRUCTIONS in this manual for draining water
from the system.
MAKING GAS CONNECTIONS
A. Connect a 3/8” gas supply line to the 3/8" are tting at gas valve. When
making the gas connection, hold the gas tting on the valve with a wrench when
tightening the are nut. Failure to hold tting securely could result in a gas leak
due to tting being damaged.
B. Turn on gas and check all ttings and connections for leaks using a soap and
water solution. Correct even the slightest leak immediately.
NOTE: When replacing your water heater with an NAUTILUS (IW60) On Demand
water heater, review your gas regulator to ensure it can maintain a proper gas
ow during the operation of the On Demand water heater and other gas burning
appliances.
NOTE: Regulator switch over pressure may be lower than main operating pressure.
Maximum Capacity of Pipe in Cubic Feet of Gas per Hour for Gas Pressures of
0.5 PSIG or Less and a Pressure Drop of 0.3 Inch Water Column
INTENDED USE:
Tubing sizing between single or second-stage (low pressure) regulator and appliance.
Nominal: K & L: 1/4 3/8 1/2 5/8
Nominal: ACR: 3/8 1/2 5/8 3/4
Outside Diameter: 0.375 0.500 0.625 0.750
Inside Diameter:* 0.305 0.402 0.527 0.652
Length (feet) Capacity in Thousands of BTU per Hour
10 45 93 188 329
20 31 64 129 226
30 25 51 104 182
40 21 44 89 155
50 19 39 79 138
*Table capacities are based on TYPE K copper tubing I.D.
WARNING
Do not use an open ame to check for leaks!
OPERATING SAFETY INFORMATION
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING
If the user of this appliance fails to maintain it in the
condition in which it was shipped from the factory or if
the appliance is not used solely for its intended purpose
or if appliance is not maintained in accordance with the
instructions in this manual, then the risk of a re and/
or the production of carbon monoxide exists which can
cause personal injury, property damage or loss of life.
If you do not follow these instructions exactly, a re or
explosion may result causing property damage, personal
injury or loss of life.
A. This appliance does not have a pilot. It is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by hand.
B. BEFORE OPERATING, smell all around the appliance area for gas. Be sure to
smell next to the oor because some gas is heavier than air and will settle on the
oor.
• Evacuate all persons from the vehicle.
• Shut o󰀨 the gas supply at the gas container or source.
• Do not touch any electrical switch, or use any phone or radio in the vehicle.
• Do not start the vehicle’s engine or electric generator.
• Contact the nearest gas supplier or qualied service technician for repairs. 4
• If you cannot reach a gas supplier or qualied service technician, contact the
nearest re department.
• Do not turn on the gas supply until the gas leak(s) has been repaired.
C. This unit has an automatic gas valve, no adjustments are necessary. Do not
attempt to repair the gas valve. This may result in a re or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a
qualied service technician to inspect the appliance and to replace any part of
the control system and any gas control which has been under water.
E. Before operating water heater, check the location of the vent to make sure it will
not be blocked by the opening of any door on the trailer. If it can be blocked, do
not operate the water heater with the door open.
OPERATING INSTRUCTIONS
WITH SWITCH AND LIGHT ASSEMBLY
1. STOP! Read the safety information above.
2. Turn o󰀨 all electric power to the appliance.
3. Turn “OFF” gas supply.
4. Wait ve minutes for gas to clear the area. If you smell gas then STOP! Follow
instructions in item B of the OPERATING SAFETY INFORMATION. If you do
not smell gas, go to next step.
5. Turn “ON” gas supply.
6. Turn on electrical power to the appliance.
7. Turn switch that operates the water heater to “ON” position. The switch is
illustrated in Figure 12. Your Switch may be di󰀨erent in appearance and is
located somewhere inside the RV. The water heater operates based o󰀨 of
"ow." There must be a hot water faucet OPEN to a minimum of 0.5 GPM for the
unit to operate. If the burner does not light, the system will automatically attempt
two more tries for ignition before lock-out. When light remains illuminated, the
system is in lockout.
8. If lockout occurs, unit must be re-cycled by turning the faucet OFF or turning
the switch OFF and then back ON. The rst start-up of the heater may require
several ignition cycles before all air is purged from the gas lines.
This On Demand Water Heater is factory set at 49°C/120°F. To change the water
temperature settings, you will need to access the front of the water heater.
1. Remove the SERVICE PANEL as shown in Figure 9.
2. Locate the set of four (4) dip switches located on the module board and refer to
Figure 12 for information on setting dip switches to desired temperature setting.
WARNING
Dip switches numbered 1 and 2 are not to be moved from
factory setting.
OPERATING INSTRUCTIONS WITH OPTIONAL
ON DEMAND CONTROL CENTER
1. STOP! Read the safety information above.
2. Turn o󰀨 all electric power to the appliance.
3. Turn “OFF” gas supply.
4. Wait ve minutes for gas to clear the area. If you smell gas then STOP! Follow
instructions in item B of the SAFETY INFORMATION. If you do not smell gas,
go to next step.
5. Turn “ON” gas supply.
6. Turn on electrical power to the appliance.
7. PRESS THE “ON” button. The On Demand CONTROL CENTER is illustrated in
Figure 13. Your On Demand CONTROL CENTER is located somewhere inside
the RV. The water heater operates based o󰀨 of "ow." There must be a hot water
faucet OPEN to a minimum of 0.5 GPM for the unit to operate. If the burner does not
light, the system will automatically attempt two more tries for ignition before lock-out.
8. If lockout occurs, and ERROR CODE will be displayed on the On Demand
CONTROL CENTER and the unit must be re-cycled by turning the faucet OFF
or by pressing the OFF button on the On Demand Control Center and then back
ON. The rst start-up of the heater may require several ignition cycles before all
air is purged from the gas lines.
This On Demand Water Heater is factory set at 49°C/120°F. To change the water
temperature settings:
1. Press the UP or DOWN arrows on the On Demand CONTROL CENTER to
increase or decrease the SET water temperature in single degree increments.
The water temperature set range is 35°C/95°F to 54°C/130°F. See Figure 13.
SEQUENCE OF OPERATION
The following Sequence of Operation will be the same when using either the
ON/OFF SWITCH or the optional On Demand CONTROL CENTER.
1. Turning on a hot water faucet activates the On Demand Water Heater.
2. The water heater senses the ow of water.
3. The water heater proves that the combustion air fan is working.
4. The combustion chamber is then purged of any remaining raw gas.
5. The burner will ignite and prove the ame.
a. The approximate time from turning on the faucet to ignition is 7 seconds. After
the initial lighting sequence and the water heater is maintaining temperature,
the ignition cycle is reduced to approximately 5 seconds.
b. Burners will stay ON until the water ow is shut o󰀨.
6. The ow of hot water at the SET point begins approximately 3 seconds after
ignition but will not reach the faucet until the hot water lines leading to the faucet
are cleared of any remaining water. This time is determined by the length of the
hot water line.
7. When the hot water faucet is turned OFF, the water heater shuts down and will
remain in a ready state until hot water is called for again.
NOTE: Blower motor will operate for approximately 20 seconds after the hot water
faucet is turned OFF.

5
8. If the ON/OFF SWITCH or On Demand CONTROL CENTER are left in the ON
position, no further action is required by the user.
9. If the water heater fails to light for any reason, a second Trial For Ignition(TFI)
will automatically begin. If the second Trial For Ignition(TFI) fails, the water
heater will automatically begin a third Trial For Ignition(TFI). If the third Trial For
Ignition(TFI) fails, the water heater will go into a lock out mode and will not try to
light the burner again. To reset:
a. Using ON/OFF SWITCH: Turn Switch OFF then back ON.
b. Using the On Demand CONTROL CENTER: Turn faucet OFF, then back on.
NOTE: The NAUTILUS (IW60) On Demand WATER HEATER has an energy mode
circuit that will shut down operation if operating continuously for three (3) hours. To
reset, follow the instruction in STEP 9 A or B above.
NOTE: Air in the gas line after changing propane tanks is the main reason for not
lighting the burner. A simple method to remove air from the gas line is to ignite a
burner on the installed cooking appliance inside your RV.
OPERATING FAUCETS AND SHOWER WITH THE
NAUTILUS (IW60) ON DEMAND WATER HEATER
A. All faucets must be operated the same as you would in your home.
B. Unit thermostat is set at 120°F at the factory. Cold water must be added to
achieve the desired hot water temperature.
1. If this is the rst use of the unit for the season, turn water supply on and open
each faucet and allow all air to be purged from the water lines.
2. Turn ON power supply.
3. Turn ON propane supply. Hot water faucet may have to be cycled several
times to purge gas supply.
C. The water heater only heats when there is a call for water (open hot water faucet).
D. A minimum of 0.5 gallons per minute is required for water heater to operate.
E. Faucet should be turned on and adjusted to desired temperature and ow before
entering shower.
F. Showerhead button should NOT be used. Using the showerhead button will
create a drop in temperature by reducing or stopping the ow of water through
the water heater causing the water heater to shut down.
G. Flow restrictors in faucets and shower heads should be removed for best
performance.
TO TURN OFF THE ON DEMAND WATER HEATER
1. Turn switch to “OFF” position for units using the Switch and Light Assembly.
2. For units using the optional On Demand CONTROL CENTER, press the power
button once.
3. Turn o󰀨 electrical power to the appliance.
4. Turn o󰀨 gas supply.
5. If vehicle is to be stored or heater is going to be turned o󰀨 while subject to freezing
temperature, drain water heater. (See “Draining and Storage Instructions.”)
OPERATIONAL TROUBLESHOOTING
CAUTION
For your safety, ALL repairs and/or maintenance of unit
should be performed by your dealer or a qualied service
technician.
NOTE: There must be a demand of at least 0.5 GPM for the burner to operate and
allow water ow. This will continue until the water ow is turned OFF and the system
goes dormant.
NO WATER FLOWS FROM FAUCET WHEN TURNED ON:
1. Be sure water supply is turned ON and there are no water restrictions.
BURNER TURNS ON, TEMPERATURE FLUCTUATES ERRATICALLY:
1. This issue can be caused by restriction in the shower heads, faucet aerators or
water strainers.
2. Clean as required and remove any ow restrictions.
ON DEMAND HEATER COMES ON AND RAPIDLY CYCLES ON AND OFF:
1. Water ow is too low. Increase ow at faucet.
2. Clean all shower heads, faucet aerators or water strainers as required and
remove any ow restrictions to assure the minimum 0.5 GPM of water ow.
3. Verify the water pump is functioning properly.
4. Bleed air out of plumbing lines by opening all water faucets.
5. If the On Demand water heater cycles as the pump cycles, an accumulator tank
is needed in the water system. If accumulator tank is already installed, check for
water inside the tank and drain tank until only air is present.
6. Water source pressure uctuates too low causing loss of ow. Check the
incoming water source for a minimum of 30 psi.
WATER TEMPERATURE IS TOO LOW WITH LOWER WATER FLOW:
1. Water ow is too low. Increase ow at faucet to assure the minimum 0.5 GPM
of water ow.
WATER TEMPERATURE IS TOO HIGH OR NO TEMPERATURE CONTROL:
1. For units with the Standard Switch and Light assembly, adjust the dip switches
to the desired temperature. Refer to OPERATING INSTRUCTIONS WITH
SWITCH AND LIGHT ASSEMBLY and see Figure 12 for information on setting
dip switches to desired temperature setting.
2. For units using the optional On Demand CONTROL CENTER, press the UP or
DOWN arrows on the On Demand CONTROL CENTER to increase the SET
water temperature in single increments. Refer to OPERATING INSTRUCTIONS
WITH OPTIONAL ON DEMAND CONTROL CENTER and see Figure 13.
LOW TEMPERATURE RISE AND EXCESSIVE WATER FLOW REQUIRED TO
TRIGGER THE ON DEMAND WATER HEATER:
NOTE: If you nd that your water heater requires excessive ow to activate it (over
0.5 GPM), it is possible that you have COLD water bleeding into the HOT water side
of your water system.
1. Verify that valves and faucets are closed when not in use. Check the shower
head for an ON/OFF button/lever and ensure it is in the OFF position to prevent
cold water from bleeding into the hot water system. This can keep the On
Demand water heater from functioning correctly.
2. If your RV is equipped with a bypass valve at the water plumbing connection,
make sure it is in the OFF position. An open valve can allow water to bypass
water heater causing a failure to ignite.
NO IGNITION:
If the burner will not come on, the following items should also be checked before
calling a service technician:
A. Switch turned o󰀨.
B. 12 VDC power is ON
C. Gas supply to heater is empty or turned o󰀨.
D. Water turned on and faucet open.
E. Check manual reset on ECO switch. Refer to DETAIL "A" in Figure 9.
If burner fails to light, call a Suburban service center or a local RV service agency.
MAINTENANCE
WARNING
If the user of this appliance fails to maintain it in the
condition in which it was shipped from the factory or if
the appliance is not used solely for its intended purpose
or if appliance is not maintained in accordance with the
instructions in this manual, then the risk of a re and/
or the production of carbon monoxide exists which can
cause personal injury, property damage or loss of life.
For your safety, all repairs should be performed by your
dealer or a qualied service person.
A. Periodically inspect unit for soot. If soot is present anywhere on water heater,
immediately shut unit down and contact your dealer or a qualied service person.
Soot is a sign of incomplete combustion and must be corrected before operating
water heater. Areas to check would include:
1. Check for an obstruction in vent cap.
2. Check vent to see that no foreign material has accumulated to prevent ow of
combustion and ventilating air.
3. Check to be sure there is no ame present at burner orice or burner
whenever main gas valve is closed. This can be checked by turning the ON/
OFF switch to the “OFF” position.
B. Periodically check wiring and wire connections to be sure wiring is not damaged/
frayed and that all terminals and connections are tight and in compliance with
codes (See “Making Electrical Connections”).
DRAINING AND STORAGE INSTRUCTIONS
If RV is to be stored during winter months, the water heater system must be drained
to prevent damage from freezing.
1. Turn o󰀨 electrical power to water heater either using the switch, the On Demand
control center or by removing the fuse.
2. Shut o󰀨 gas supply to water heater.
3. Turn o󰀨 pressure pump on water system.
4. Open both hot and cold water faucets.
5. Remove Service Panel to access system drain valve.
6. Turn drain valve knob clockwise to drain.
7. Follow RV manufacturer’s instructions for draining entire water system.
NOTE: System will have to be relled with water and all air removed from lines before
unit will re-light.
NOTE: All water must be drained to the outside of the RV - Drain lines must be
connected to the system and condensation drains on the water heater and ran to the
outside of the RV. Drain Lines should be as short as possible and must maintain a
drop of ¼” per foot from unit. See Figure 10.
WINTERIZING
1. Follow RV manufacturer's instructions for draining entire water system.
2. Once drained, RV NON-TOXIC antifreeze can be added if recommended by
your coach manufacturer.
FREEZE PROTECTION
The NAUTILUS (IW60) On Demand water heater has built-in FREEZE PROTECTION
and will intermittently cycle the burner when the water temperature has fallen below
40°F(4.4°C). This intermittent cycling will continue until the water temperature has
risen above 50°F(10.0°C). To provide this freeze protection, the gas supply must be
on, gas must be available and electrical power must be on.
If the On Demand Water Heater is dripping water into the drain line, in cold weather,
when the water supply temperature is below 38°F and does not stop when the water
temperature rises above 38°F, call your local service center. The valve may be
disabled by turning the needle valve located on the front of the On Demand Water
Heater 5 and 1/2 turns clockwise. Closing the valve will disable the mechanical
freeze protection feature. The water system must be drained when not in use to
avoid damage caused by ice expanding in water lines if valve is closed.

6
9.488
C
L
Ø3.750 HOLE FOR VENT ASSEMBLY
3.945
2.256
UNIT
Ø.125 (4 PLACES)
45ØTYP
4.370
Figure 4
DESCALING INFORMATION
Each year, drain the water from the system and ush the heat exchanger with an
approved descaling solution.
PRESSURE RELIEF VALVE
The temperature and pressure relief valve is designed to open if the temperature
of the water within the heater reaches 210°F, or if the water pressure in the heater
reaches 145 psi.
WARNING
Do not place a valve between the relief valve and the unit.
Do not plug the relief valve under any circumstances.
Suburban recommends that a check valve not be installed directly at the inlet to the
water heating unit.
WARNING
Do not remove or plug the relief valve.
REMOVING ON DEMAND WATER HEATER
1. Shut o󰀨 gas supply and disconnect gas supply line from water heater.
2. Disconnect 12 V.D.C. power supply to heater.
3. Shut o󰀨 water supply. Drain water from system.
4. Disconnect HOT and COLD water lines from water heater.
5. Remove screws at the back of the unit.
6. Remove vent cap assembly.
7. Remove water heater. To reinstall, follow installation instructions provided in this
manual beginning on page 3.
WARNING
For your safety, ALL repairs and/or maintenance of unit
should be performed by your dealer or a qualied service
technician.
PARTS AND SERVICE
Contact a conveniently located recommended Suburban Service Center. Describe
to them the nature of your problem, make an appointment, if necessary, and provide
for delivery of your RV with the appliance installed.
To obtain information on locating a local service agency, contact:
AIRXCEL, Inc. - Suburban Division
Customer Service Department
676 Broadway Street, Dayton, TN 37321
[phone] Ext. 7101 • www.Airxcel.com
INCORRECT
Enlarged for illustration purposes only
Figure 1
INCORRECT
Enlarged for illustration purposes only
Figure 2
CORRECT
Enlarged for illustration purposes only
Figure 3

7
ELECTRICAL CONNECTION
WATER SUPPLY INLET
WATER SUPPLY
OUTLET
SCREW UNIT TO FLOOR
AS SHOWN
GAS
CONNECTION
SYSTEM DRAIN LINE
5/8" I.D. TUBING
FREEZE PROTECTION NEEDLE VALVE
CONDENSATE DRAIN
1/2" I.D. TUBING
Figure 5
VENT CAP PART NO. 260617 SHOWN FOR INSTALLATION WITHOUT ACCESS PANEL. MAX "X" DIMENSION OF 2.00".
1.250 MIN. OVERLAP
REQUIRED ON EXHAUST
"X"
ON DEMAND WATER HEATER
EXHAUST
VENT TUBE
TRAILER SKIN
VENT CAP
MOUNTING SCREWS
FOR VENT
CAP ASSEMBLY
GASKET
Figure 7A
APPLY SILICONE COMPLETELY AROUND
BACK SIDE OF VENT FLANGE (MUST BE
SEALED TO OUTER WALL)
(BACK VIEW)
RV WALL
Figure 6

8
Figure 7B
"Y"
RV
WALL
RV
WALL
ALTERNATE MOUNTING
BRACKET LOCATION
ACCESS PANEL WITH FRAME
OVERHEAD VIEW
ACCESS PANEL
MOUNTING SCREWS
FRONT OF UNIT
REAR OF UNIT
GASKET
SUBURBAN ACCESS PANEL "Y" DIMENSION
6 GALLON 4.895"
10 GALLON 6.634"
Figure 8
SILICONE OR
CAULKING AROUND OPENING
(8) SCREWS
(4) SCREWS
MOUNTING TABS
IN FRAME
(2) SLOTS IN BOTTOM OF
PANEL HOOK IN TABS ON
FRAME BEFORE INSTALLING
(5) SCREWS TO SECURE
PANEL.
BOTTOM OF PANEL
SILICONE OR CAULKING AROUNG
OPENING FOR 10 GALLON ACCESS PANEL
(IF APPLICABLE)
GASKET
AFTER INSTALLATION, CAULK AROUND
BEVELED EDGE OF ACCESS PANEL
(5) SCREWS
APPLY SILICONE COMPLETELY AROUND
BACK SIDE OF VENT FLANGE (MUST BE
SEALED TO ACCESS PANEL)
DO NOT CAULK THE BOTTOM
EDGE OF THE REPLACEMENT PANEL

9
SYSTEM DRAIN
5/8" I.D. TUBING
SYSTEM DRAIN
CONTROL KNOB
FREEZE PROTECTION
NEEDLE VALVE
CONDENSATE DRAIN
1/2" I.D. TUBING
GREEN GROUND SCREW
Figure 10
Figure 9
SERVICE PANEL
MANUAL ECO SWITCH
LEFT SIDE
ACCESS PANEL
A
DETAIL A

10
WATER HEATER
ON RESET
D3 D4 TEMPERATURE
ON ON 108°F 42°(C)
OFF OFF 120°F 49°(C)
ON OFF 125°F 52°(C)
OFF ON 130°F 54°(C)
*
* ON DEMAND WATER HEATER IS FACTORY
SET AT 120°F (49°C).
DIP SWITCHES (D3 & D4)
SEE TEMPERATURE SETTING ON CHART
1 2 3 4
XX
ON ON
STANDARD SWITCH AND LIGHT ASSEMBLY
Figure 12
CODE
BK
BR
BL
R
Y
G
COLOR
BLACK
BROWN
BLUE
RED
YELLOW
GREEN
WH
Y/G
WHITE
YELLOW/GREEN
ORANGEO
WATER FLOW
SENSOR
BK WIRE HARNESS
XX
W1 W2
WH
WH
BL
O
Y/G
R +12 V.D.C.
BK -12 V.D.C.
XX
AUTO RESET
LIMIT SWITCH
MANUAL RESET
LIMIT SWITCH
AIR PRESSURE
SWITCH
1
12 22
11 14
58
14
36
ON ON
FLAME PROBE
8
5
141
4
3
2
BL
W
BK
Y
R
R
R
BL
BL
G
BK
BR
R
BL
BR
INLET WATER
TEMPERATURE PROBE
OUTLET WATER
TEMPERATURE PROBE
WH
WH
BR
BR
Y
R
GAS
VALVE
2 STAGE
GAS
VALVE
R
SPARK
ELECTRODE
ON DEMAND
CONTROL
CENTER
MOTOR
WH
O
BR
Y
GY
R
BL
WIRE HARNESS
SWITCH
R
LAMP*
BK
MODULE
BOARD
FAN
BOARD
GREY
GY
20 AWG 600V 105°C
18 AWG 600V 105°C
340587
WH
WH
WH
WH
BK
R
Y/G
+
-
*LIGHT IS ONLY TO BE
USED WITH BLUE AND
ORANGE WIRES FROM
IW60. TO AVOID DAMAGE
TO THE MODULE BOARD,
DO NOT CONNECT SUPPLY
VOLTAGE TO LAMP.
( FACTORY WIRING) ( - - - - - - - - - - FIELD WIRING)
ALL WIRES ARE 22 AWG UNLESS OTHERWISE SPECIFIED.
NOTE: IF ANY OF THE ORIGINAL WIRES AS SUPPLIED WITH
THE APPLIANCE MUST BE REPLACED, IT MUST BE
REPLACED WITH WIRING MATERIAL HAVING A
TEMPERATURE RATING OF AT LEAST 80° C.
CAUTION: DO NOT HI-POT
(DIELECTRIC HIGH VOLTAGE TEST)
THIS UNIT AFTER INSTALLATION.
TO DO SO MAY CAUSE COMPONENT
DAMAGE AND VOIDS WARRANTY OF
WATER HEATER.
UNIT 100% FIRE CHECKED.
Figure 11

°C/°F
11
OPTIONAL ON DEMAND CONTROL CENTER
Figure 13
Figure 14
MOUNTING HOLES
KNOCK OUT
DISPLAY DESCRIPTION
1BURNERS
2 BURNERS
5 BURNERS
2FLAME This icon is displayed when
FLAME is established.
3BLOWER This icon is displayed when the
BLOWER is running
4STATUS
INDICATOR
This icon is displayed when the
Water Heater is in standby mode,
ready to be used.
5
SETTING TEMP
INDICATOR;
OUTLET WATER
TEMP INDICATOR
A. When setting the water temperature,
the temperature display will ash.
After SET Temperature is reached,
the display stops ashing after a few
seconds.
B. When the demand for hot water has
been terminated, the display will return
to the SET Temperature.
C. When the water heater is turned o󰀨,
the letters "OF" will be display.
6FREEZE
PROTECTION
This icon is displayed when
the FREEZE PROTECTION
MECHANISIM is engaged.
BUTTON DESCRIPTION
7ON/OFF Power Button. Switch from turning
unit ON or turning unit OFF.
8
°C/°F
SWITCH
Hold for 5 seconds to switch
between degrees (°) Celcius or
degrees (°) Fahrenheit
9UP
INCREASE SET Temperature
by 1 degree increments. Setting
range is 35°C/95°F to 55°C/130°F
10 DOWN
DECREASE SET Temperature
by 1 degree increments. Setting
range is 35°C/95°F to 55°C/130°F
1 2
3 4
5
7 8 9 10
6

TWO YEAR LIMITED WARRANTY
SUBURBAN RECREATIONAL VEHICLE WATER HEATER
TWO YEAR LIMITED WARRANTY
This Suburban product is warranted to the original purchaser to be free from defects in material and workmanship under normal use and maintenance
for a period of two years from date of purchase whether or not actual use begins on that date. It is the responsibility of the consumer/owner to establish
the warranty period. Suburban does not use warranty registration cards for its standard warranty. You are required to furnish proof of purchase date
through a Bill of Sale or other payment records.
Suburban will replace any parts that are found defective within the rst two years and will pay a warranty service allowance directly to the recommended
Suburban Service Center at rates mutually agreed upon between Suburban and its recommended service centers. Replacement parts will be shipped
FOB the shipping point within the Continental United States, Alaska and Canada to the recommended service center performing such repairs. All freight,
shipping and delivery costs shall be the responsibility of the owner. The exchanged part or unit will be warranted for only the unexpired portion of the
original warranty. Before having warranty repairs made, conrm that the service agency is a recommended service center for Suburban. DO NOT PAY
THE SERVICE AGENCY FOR WARRANTY REPAIRS; SUCH PAYMENTS WILL NOT BE REIMBURSED.
Suburban reserves the right to examine the alleged defect in the water heater or component parts, and it is the owner’s obligation to return the water
heater and/or component parts to Suburban or its representative. When returning a water heater, it must include all component parts and the serial
number plate. Returned component parts must be individually tagged and identied with the water heater’s model number, serial number and date of
installation.
For warranty service, the owner/user should contact the nearest recommended Suburban Service Center, advising them of the model and serial numbers
(located on the water heater) and the nature of the defect. Transportation of the RV to and from the Service Center and/or travel expenses of the Service
Center to your location is the responsibility of the owner/user. A current listing of recommended service center may be obtained from Suburban’s website:
www.Airxcel.com. If you cannot locate a recommended service center locally, the service agency chosen to perform warranty repairs must contact our
Service Department at 423-775-2131 for authorization before making repairs. Unauthorized repairs made will not be paid by Suburban.
LIMITATION OF WARRANTIES
ALL IMPLIED WARRANTIES (INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY) ARE HEREBY LIMITED IN DURATION TO THE PERIOD
FOR WHICH EACH LIMITED WARRANTY IS GIVEN. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY
LASTS SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. THE EXPRESSED WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE
AND MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER OR OTHER PERSON WHOMSOEVER.
SUBURBAN WILL NOT BE RESPONSIBLE FOR:
1. Normal maintenance as outlined in the installation, operating and service instructions owner’s manual including cleaning of component parts and
cleaning or replacement of the burner orice. Any water damage arising, directly or indirectly, from any defect in the water heater or component parts
or from its use.
2. Initial checkouts and subsequent checkouts which indicate the water heater is operating properly, or diagnosis without repair.
3. Damage or repairs required as a consequence of faulty or incorrect installation or application not in conformance with Suburban instructions.
4. Failure to start and/or operate due to loose or disconnected wires; water or dirt in controls, fuel lines and gas units; improper gas pressure; low
voltage.
5. Cleaning or adjustment of components; electrode, burner tube, pilot and thermocouple.
6. Costs incurred in gaining access to the water heater.
7. Parts or accessories not supplied by Suburban.
8. Freight charges incurred from parts replacements.
9. Damage or repairs needed as a consequence of any misapplication, abuse, unreasonable use, unauthorized alteration, improper service, improper
operation or failure to provide reasonable and necessary maintenance.
10. Suburban products whose serial number has been altered, defaced or removed.
11. Suburban products installed or warranty claims originating outside the Continental U.S.A., Alaska, Hawaii and Canada.
12. Damage as a result of oods, winds, lightning, accidents, corrosive atmosphere or other conditions beyond the control of Suburban.
13. ANY SPECIAL, INDIRECT OR CONSEQUENTIAL PROPERTY, ECONOMIC OR COMMERCIAL DAMAGE OF ANY NATURE WHATSOEVER
Some states do not allow the exclusion of incidental or consequential damages, so the above limitation may not apply to you.
NO REPRESENTATIVE, DEALER, RECOMMENDED SERVICE CENTERS OR OTHER PERSON IS AUTHORIZED TO ASSUME FOR SUBURBAN
MANUFACTURING COMPANY ANY ADDITIONAL, DIFFERENT OR OTHER LIABILITY IN CONNECTION WITH THE SALE OF THIS SUBURBAN
PRODUCT.
This warranty gives you specic legal rights, and you may also have other rights which vary from state to state.
IF YOU HAVE A PRODUCT PROBLEM
FIRST: If your RV has its original water heater and is still under the RV manufacturer’s warranty, follow the steps suggested by your dealer or manufacturer
of the RV.
SECOND: Contact a conveniently located recommended Suburban Service Center. Describe to them the nature of your problem, make an appointment,
if necessary, and provide for delivery of your RV to the selected service center.
THIRD: For the location of the nearest Service Center, refer to the listing provided or contact:
AIRXCEL, INC. - SUBURBAN DIVISION
Customer Service Department
676 Broadway Street
Dayton, Tennessee 37321
[phone], Ext. 7101
www.Airxcel.com
FOR FUTURE REFERENCE, YOU SHOULD RECORD THE FOLLOWING INFORMATION:
MODEL NUMBER:
SERIAL NUMBER:
STOCK NUMBER:
DATE OF PURCHASE:

GARANTIE LIMITÉE DE DEUX ANS
CHAUFFE-EAU SUBURBAN POUR VÉHICULES RÉCRÉATIFS
GARANTIE LIMITÉE DE DEUX ANS
Suburban garantit à l’acheteur d’origine que ce produit est exempt de défaut de matériaux et de fabrication dans les conditions normales d’utilisation et d’entretien pour une
période de deux ans à compter de la date d’achat que l’utilisation réelle débute ou non à cette date. Il incombe au consommateur/propriétaire d’établir la période de garantie.
Suburban n’utilise pas les cartes d’enregistrement de la garantie pour sa garantie standard. La preuve de la date d’achat par un acte de vente ou autre dossier de paiement
doit être fournie.
Suburban remplacera toutes les pièces qui sont jugées défectueuses dans les deux premières années et versera une indemnité de service au titre de la garantie directement
au centre de service Suburban recommandé à la hauteur mutuellement convenue entre Suburban et ses centres de service recommandés. Les pièces de rechange seront
livrées FAB du point d’expédition dans les États-Unis continentaux, en Alaska et au Canada au centre de service recommandé e󰀨ectuant ces réparations. Tous les frais
de fret, d’expédition et de livraison sont à la charge du propriétaire. La pièce ou l’appareil échangés seront uniquement garantis pendant la période restante de la garantie
d’origine. Avant de faire e󰀨ectuer les réparations au titre de la garantie, conrmer que l’agence de service est un centre de service recommandé pour Suburban. NE PAS
PAYER L’AGENCE DE SERVICE POUR LES RÉPARATIONS AU TITRE DE LA GARANTIE; CES PAIEMENTS NE SERONT PAS REMBOURSÉS.
Suburban se réserve le droit d’examiner le défaut présumé dans le chau󰀨e-eau ou les composants, et c’est l’obligation du propriétaire de retourner le chau󰀨e-eau et/ou ses
composants à Suburban ou à son représentant. Au moment du retour d’un chau󰀨e-eau, il doit comporter tous les composants et la plaque de numéro de série. Les pièces de
composant retournées doivent être étiquetées et identiées individuellement avec le numéro de modèle, le numéro de série et la date d’installation du chau󰀨e-eau.
Pour le service au titre de la garantie, le propriétaire/l’utilisateur doit contacter le centre de service Suburban recommandé le plus proche, pour l’informer des numéros
de modèle et de série (situé sur le chau󰀨e-eau) et la nature du défaut. Le transport du VR vers et depuis le centre de service et/ou les frais de déplacement du centre de
service à votre emplacement sont de la responsabilité du propriétaire/de l’utilisateur. La liste actuelle des centres de service recommandés peut être obtenue sur le site de
Suburban www.Airxcel.com. En cas de l’impossibilité de localiser un centre de service recommandé local, l’agence de service choisi pour e󰀨ectuer les réparations au titre
de la garantie doit contacter notre service à la clientèle au [phone] pour autorisation avant de faire e󰀨ectuer les réparations. Les réparations e󰀨ectuées sans
autorisation ne seront pas payées par Suburban.
LIMITATION DE GARANTIES
TOUTE GARANTIE IMPLICITE (Y COMPRIS TOUTE GARANTIE IMPLICITE DE QUALITÉ MARCHANDE) EST LIMITÉE EN TERMES DE DURÉE À LA PERIODE
PENDANT LAQUELLE CHAQUE GARANTIE LIMITÉE EST ACCORDÉE. CERTAINS ÉTATS NE PERMETTENT PAS LA LIMITATION DE LA DURÉE D’UNE GARANTIE
IMPLICITE; AINSI, LES LIMITATIONS CI-DESSUS PEUVENT NE PAS S’APLIQUER DANS VOTRE CAS. LES GARANTIES EXPLICITES AU TITRE DE LA PRÉSENTE
GARANTIE SONT EXCLUSIVES ET NE PEUVENT PAS ÊTRE MODIFIÉES, ÉTENDUES, OU CHANGÉES PAR UN DISTRIBUTEUR, UN CONCESSIONNAIRE OU UNE
AUTRE PERSONNE QUELLE QU’ELLE SOIT.
SUBURBAN NE SERA PAS TENUE RESPONSABLE DE :
1. L’entretien normal décrit dans le manuel du propriétaire, les consignes d’installation, de fonctionnement et d’entretien, y compris le nettoyage des composants,
le nettoyage ou le remplacement de l’orice du brûleur. Tout dommage découlant de l’eau, directement ou indirectement, de tout défaut au chau󰀨e-eau ou aux
composants ou de son utilisation.
2. Des vérications initiales et celles ultérieures indiquant que le chau󰀨e-eau fonctionne de manière appropriée, ou qu’aucune réparation ne s’avère nécessaire après un
diagnostic;
3. Des dommages ou des réparations nécessaires à la suite d’une installation ou d’une application défectueuse ou incorrecte non conforme aux consignes de Suburban;
4. Du défaut de démarrer et/ou de fonctionner en raison de ls desserrés ou débranchés; de l’eau ou de la saleté dans les commandes, les conduites de carburant et les
appareils de gaz; d’une pression de gaz incorrecte; d’une basse tension;
5. Du nettoyage ou de l’ajustement des composants; d’une électrode, d’un tube de brûleur, d’une veilleuse et du thermocouple;
6. Des frais encourus pour l’accès au chau󰀨e-eau;
7. D’une pièce ou d’un accessoire non fourni(e) par Suburban;
8. Des frais de transport encourus pour le remplacement de pièce;
9. Des dommages ou des réparations nécessaires à la suite de quelque utilisation impropre, abusive ou déraisonnable, modication non autorisée, entretien inapproprié,
fonctionnement inapproprié ou incapacité à fournir un entretien raisonnable et nécessaire;
10. Des produits Suburban dont le numéro de série a été modié, e󰀨acé ou enlevé;
11. Des produits Suburban installés ou des réclamations au titre de la garantie provenant des États-Unis continentaux, de l’Alaska, d’Hawaï et du Canada;
12. Des dommages causés par une inondation, le vent, la foudre, les accidents, une atmosphère corrosive ou autre condition indépendante de la volonté de Suburban;
13. DE QUELQUE DOMMAGE SPÉCIAL, INDIRECT, ÉCONOMIQUE OU COMMERCIAL DE QUELQUE NATURE QUE CE SOIT.
Certains états ne permettent pas l’exclusion de dommages indirects ou consécutifs, de sorte que la limitation ci-dessus peut ne pas s’appliquer dans votre cas.
AUCUN REPRÉSENTANT, CONCESSIONNAIRE, CENTRE DE SERVICE RECOMMANDÉ OU UNE AUTRE PERSONNE N’EST AUTORISÉ(E) À ASSUMER POUR
L’ENTREPRISE DE FABRICATION SUBURBAN QUELQUE RESPONSABILITÉ ADDITIONNELLE, DIFFÉRENTE OU AUTRE EN RELATION AVEC LA VENTE DU
PRÉSENT PRODUIT SUBURBAN.
La présente garantie vous accorde des droits spéciques, en plus d’autres droits éventuels variant d’un État, d’une province ou d’un territoire à un autre.
POUR TOUT PROBLÈME CONCERNANT UN PRODUIT
PREMIÈREMENT : Si votre VR possède un chau󰀨e-eau d’origine et est encore protégé par la garantie du constructeur de véhicules récréatifs, suivre les étapes proposées
par le concessionnaire ou le constructeur du VR.
DEUXIÈMENT : Prendre contact avec un centre de service Suburban recommandé, idéalement situé. Lui décrire la nature du problème, prendre rendez-vous, le cas échéant,
et assurer la livraison du VR au centre de service choisi.
TROISIÈMEMENT : Pour l’emplacement du centre de service le plus proche, voir la liste fournie ou contacter :
AIRXCEL, INC. - DIVISION SUBURBAN
Service-clientèle
676 Broadway Street
Dayton, Tennessee 37321
[phone], poste 7101
www.Airxcel.com
POUR RÉFÉRENCE ULTÉRIEURE, VOUS DEVEZ ENREGISTRER LES INFORMATIONS
SUIVANTES :
NUMERO DE MODELE:
NUMERO DE SERIE:
NUMERO DE STOCK:
DATE D'ACHAT:

11
Figure 13
TROUS DE FIXATION
ENTREE DEFONCABLE
Figure 14
MODULE DE COMMANDE INSTANTANÉ EN OPTION
°C/°F
DISPLAY DESCRIPTION
1BRULEURS
2 BURNERS
5 BURNERS
2FLAMME Cette icône s’a󰀩che lorsque la
FLAMME est établie.
3VENTILATEUR
REFOULANT
Cette icône s’a󰀩che lorsque le
VENTILATEUR REFOULANT est
en marche.
4INDICATEUR DE
STATUT
Cette icône apparaît lorsque le
chau󰀨e-eau est en mode veille,
prêt à être utilisé.
5
RÉGLAGE DU POINT
DE CONSIGNE DE
L’INDICATEUR DE
TEMPÉRATURE;
INDICATEUR DE
TEMPÉRATURE DE
L’EAU DE SORTIE
A. Au moment du réglage de la
température de l’eau, l’a󰀩chage de la
température clignotera. Après l’atteinte
du point de consigne de la température,
l’a󰀩chage cesse de clignoter au bout de
quelques secondes.
B. Lorsque la demande en eau chaude
prend n, l’a󰀩chage retourne à la
température de consigne.
C. Lorsque le chau󰀨e-eau est éteint, les
lettres "OF" s'a󰀩chent.
6PROTECTION
ANTIGEL
Cette icône est a󰀩chée lorsque le
mécanisme de protection anti-gel
est engagé.
BUTTON DESCRIPTION
7SOUS TENSION/
HORS TENSION
Bouton d’alimentation.
Interrupteur pour la mise sous
tension de l’appareil ou la mise
hors tension de l’appareil.
8
°C/°F
INTERRUPTEUR Pendant 5 secondes pour passer
des degrés (°) Celsius aux degrés
(°) Fahrenheit
9FLECHE HAUT
AUGMENTER la température de
CONSIGNE par incréments de 1 degré.
La plage de réglage du point de
consigne est de 35 °C (95 °F) à 55 °C
(130 °F)
10 FLECHE BAS
DIMINUER la température de
CONSIGNE par incréments de
1 degré. La plage de réglage du
point de consigne est de 35 °C
(95 °F) à 55 °C (130 °F)
1 2
3 4
5
7 8 9 10
6

10
Figure 12
CODE
BK
BR
BL
R
Y
G
COULEUR
NOIR
BRUN
BLEU
ROUGE
JUANE
VERT
WH
Y/G
BLANC
JAUNE/VERT
ORANGEO
CAPTEUR DE DEBIT D'EAU FAISCEAU DE CABLES
XX
W1 W2
WH
WH
BL
O
Y/G
R +12 V.c.c.
BK -12 V.c.c.
XX
LIMITEUR DE FIN DE
COURSE DE REINITIALISATION
AUTOMATIQUE
LIMITEUR DE FIN DE
COUSE DE
REINITIALISATION MANUEL
PRESSOSTAT
1
12 22
11 14
58
14
36
ON ON
DETECTEUR DE FLAMME
8
5
141
4
3
2
BL
W
BK
Y
R
R
R
BL
BL
G
BK
BR
R
BL
BR
SONDE DE TEMPERATURE
DE L'ADIMISSION D'EAU
SONDE DE TEMPERATURE
DE LA SORTIE D'EAU
WH
WH
BR
BR
YROBINET
DE GAZ
ROBINET DE GAZ A
DEUX ETAGES
R
ELECTRODE
D'ALLUMAGE MODULE
DE COMMANDE
MOTOR
WH
O
BR
Y
GY
R
BL
FAISCEAU DE CABLES
INTERRUPTEUR
R
LAMPE*
BK
CARTE
DE
MODULE
CARTE DU
VENTILATEUR
GRIS
GY
TOUS LES FILS SONT DE CALIBRE 22 SAUF INDICATION
CONTRAIRE. REMARQUE : SI L'UN DES FILS D'ORIGINE
FOURNI AVEC L'APPAREIL DOIT ETRE REMPLACE, LE
REMPLACER PAR UN MATERIAU DE CABLAGE AYANT UNE
TEMPERATURE MINIMALE D'AU MOINS 80° C (176°F).
CAL. 20, 600 V, 105°C (221 °F)
CAL. 18, 600 V, 105°C (221 °F)
MISE EN GARDE : N'EFFECTUER AUCUN
ESSAI DIELECTRIQUE (ESSAI DIELECTRIQUE -
HASTE TENSION) CET APPAREIL APRES
INSTALLATION CELA PEUT PROVOQUER DES
DOMMAGES AUX COMPOSANTS ET ANNULER
LA GARANTIE DU CHAUFFE-EAU. L'APPAREIL A
PAIT L'OBJET D'UN ESSAI COMPLET DE TENUE
A L'INCENDIE; CONFORME A 100%.
FR340587
WH
WH
WH
WH
BK
R
Y/G
R
BK
+
-
*LA LUMIERE NE DOIT
ETRE UTILISE AVEC DES
FILS BLEU ET ORANGE DE
IW60. POUR EVITER
D'ENDOMMAGER LA CARTE
DU MODULE, NE PAS
CONNECTER LA TENSION
D'ALIMENTATION A LA
LAMPE.
( CÂBLAGE USINE)
( - - - - - - - - - - CÂBLAGE DE TERRAIN)
Figure 11
ON REINITIALISATION
CHAUFFE-EAU
D3 D4 TEMPERATURE
ON ON 108°F 42°(C)
OFF OFF 120°F 49°(C)
ON OFF 125°F 52°(C)
OFF ON 130°F 54°(C)
*
* LE HAUFFE-EAU INSTANTANE EST
REGLE EN USINE A 120°F (49°C).
1234
XX
COMMUTATEURS DIP (D3 & D4)
VOIR LE REGLAGE DE LA TEMPERATURE AU TABLEAU
ON ON
ENSEMBLE INTERRUPTEUR ET VOYANT STANDARD

9
VIDANGE DU CIRCUIT
5/8 PO DIMENSIONS INTERNES TUBE
BOUTON DE
COMMANDE DE LA
VIDANGE DU CIRCUIT
AIGUILLE DE SOUPAPE
FREEZE PROTECTION
VIDANGE DU CONDENSATS
1/2 PO DIMENSIONS INTERNES TUBE
VERT SOL VIS
Figure 10
Figure 9
PANNEAU D’ENTRETIEN
INTERRUPTEUR
ECO MANUEL
COTE GAUCHE DU
PANNEAU
D’ACCES
A
POINT A

8
Figure 7B
"Y"
RV
WALL
RV
WALL
ALTERNATE MOUNTING
BRACKET LOCATION
ACCESS PANEL WITH FRAME
OVERHEAD VIEW
ACCESS PANEL
MOUNTING SCREWS
FRONT OF UNIT
REAR OF UNIT
GASKET
PANNEAU D’ACCÈS SUBURBAN PANNEAU D’ACCÈS SUBURBAN
22,7 LITRES 12,433 cm
37,85 LITRES 16,850 CM
Figure 8
FOND DU PANNEAU
SILICONE OU CALFEUTRE AUTOUR
DE L'OUVERTURE
SILICONE OU CALFEUTRE AUTOUR
DE L'OUVERTURE POUR LE PANNEAU
D'ACCES 37.8 LITERS (10 GALLONS) (LE CAS ECHEANT)
(4) VIS
(5) VIS APPLIQUER DU SILICONE
AUTOUR DU COTE ARRIERE DU
TROU D’AERATION (DIOT ETRE
SCELLE AU PANNEAU D’ACCESS)
(8) VIS
JOINT D'ETANCHEITE
PATTES DE FIXATION
SUR LE CADRE
LES (2) FENTES AU FONDDES CROCHETS
DUPANNEAU DANS LES PATTESDU CADRE
AVANTL'INSTALLATION DES (5) VISDE
L'EVENT POUR FIXERSOLIDEMENT LE
PANNEAU
APRES L’INSTALLATION, CALFEUTRER
AUTOUR DU REBORD BISEAUTE DU PANNEAU D’ACCES
NE PAS CALFEUTRER LE BORD
INFERIEUR DU PANNEAU D’ACCES

7
RACCORDEMENT ELECTRIQUE
ADMISSION DE L'ALIMENTATION
EN EAU
RE-VISSER L'ARRIERE DE
L'APPAREIL SUR LE PLANCHER, TEL
QU'IL EST ILLUSTRE
CONDUITE DE VIDANGE DU SYSTEME
5/8 PO DIMENSIONS INTERNES TUBE
AIGUILLE DE SOUPAPE
FREEZE PROTECTION
SORTIE DE L'ALIMENTATION
EN EAU
RACCORDEMENT
DU GAZ
VIDANGE DU CONDENSATS
1/2 PO DIMENSIONS INTERNES TUBE
Figure 5
PIÈCE POUR BOUCHON D’ÉVENT NO. 260617 MONTRÉE POUR L’INSTALLATION SANS PANNEAU D’ACCÈS. DIMENSIONS MAX « X » DE 5,08 cm
"X"
ON DEMAND WATER HEATER
CLAPET ANTIRETOUR
D’ÉCHAPPEMENT
REVÊTEMENT
DE LA ROULOTTE
BOUCHON
DE L’ÉVENT
JOINT
1,250 MIN.
CHEVAUCHEMENT
NÉCESSAIRE À
L’ÉVACUATION
VIS DE
MONTAGE
POUR ÉVENT
BOUCHON
Figure 7A
(VUE ARRIERE)
MUR DU VR
APPLIQUER DU SILICONE TOUT
AUTOUR DU CÔTÉ ARRIÈRE DU TROU
D’AÉRATION (DOIT ÊTRE SCELLÉ AU
MUR EXTERNE)
Figure 6

6
9,488
C
L
DIAMETRE DE 3,750
TROU POUR EVENT DE
ENSELBE
3,945
2,256
APPREIL
DIAMETRE DE
0,125 (4 ENDROITS)
45ØTYP
4,370
Figure 4
la fonctionnalité du mécanisme de protection auxiliaire. Le circuit d’eau doit être vidangé
lorsqu’il n’est pas en cours d’utilisation pour éviter des dommages causés par de la glace qui
épaissit dans les conduites d’eau si le robinet est fermé.
RENSEIGNEMENTS SUR LE DÉTARTRAGE
Chaque année, évacuer l’eau du système et rincer l’échangeur de chaleur avec une
solution de détartrage approuvée.
SOUPAPE DE DÉCOMPRESSION
La soupape de température et de décompression est conçue pour ouvrir si la
temperature de l’eau dans le chau󰀨e-eau atteint 98 °C ou si la pression de l’eau
dans le chau󰀨e-eau atteint 999,7 kPa.
AVERTISSEMENT
Ne pas installer de soupape entre la soupape de sécurité et l’appareil.
Ne brancher la soupape de sécurité en aucune circonstance.
Suburban recommande qu’aucun clapet anti-retenue ne soit installé directement à
l’admission du chau󰀨e-eau.
AVERTISSEMENT
Ne pas retirer ou brancher la soupape de sécurité.
RETIRER LE ON DEMAND WATER HEATER
1. Fermer l’alimentation en gaz et débrancher le tuyau d’alimentation en gaz du
chau󰀨e-eau.
2. Débrancher l’alimentation 12 Vcc du chau󰀨e-eau.
3. Fermer l’alimentation en eau. Évacuer l’eau du système.
4. Débrancher les conduites d’eau chaude et d’eau froide du chau󰀨e-eau.
5. Retirer les vis à l’arrière de l’appareil.
6. Retirer l’assemblage du bouchon de l’évent.
7. Retirer le chau󰀨e-eau. Pour réinstaller, suivre les instructions fournies dans ce
manuel à partir de la page 3.
AVERTISSEMENT
Pour votre sécurité, TOUTES les réparations et/ou l’entretien de
l’appareil doivent être e󰀨ectués par votre dépositaire ou un technicien
d’entretien qualié.
PIÈCES ET ENTRETIEN
Contacter un centre d’entretien Suburban recommandé près de chez vous.
Décrivez-leur la nature du problème, prenez un rendez-vous (au besoin) et chargez-
vous de la livraison de votre VR avec l’appareil installé.
Pour obtenir de l’information pour contacter une agence de service locale,
communiquer avec :
AIRXCEL, Inc. - Suburban Division
Customer Service Department
676 Broadway Street, Dayton, TN 37321
[phone] Ext. 7101 • www.Airxcel.com
INCORRECT
Élargi aux fins d’illustration seulement
Figure 1
INCORRECT
Élargi aux fins d’illustration seulement
Figure 2
CORRECT
Élargi aux fins d’illustration seulement
Figure 3

5
REMARQUE : La présence d’air dans la conduite de gaz à la suite d’un remplacement
des réservoirs à propane est la raison principale pour laquelle le brûleur ne s’allume
pas. Une méthode simple pour purger l’air de la conduite de gaz est d’allumer un
brûleur sur l’appareil de cuisson installé dans votre VR.
FONCTIONNEMENT DES ROBINETS ET DE LA DOUCHE
AVEC LE ON DEMAND WATER HEATER NAUTILUS
(IW60)
A. Tous les robinets doivent fonctionner de la même façon que dans votre maison.
B. Le thermostat de l’appareil est réglé à 49° C en usine. Ajouter de l’eau froide
pour atteindre la température d’eau chaude souhaitée.
1. S’il s’agit de la première utilisation de l’appareil pour la saison, ouvrir le
robinet d’alimentation d’eau et ouvrir chaque robinet pour que l’air soit
évacué des conduites d’eau.
2. Mettre l’appareil sous tension (ON).
3. Ouvrir l’alimentation en gaz propane. Le robinet d’eau chaude pourrait devoir
e󰀨ectuer plusieurs cycles avant d’évacuer l’approvisionnement en gaz.
C. Le chau󰀨e-eau réchau󰀨e seulement lorsqu’il y a une demande d’eau (ouvrir le
robinet d’eau chaude).
D. Pour fonctionner, le chau󰀨e-eau doit contenir un minimum de 1,9 litres par
minute.
E. Le robinet doit être ouvert et ajusté à la température et au débit souhaité avant
d’entrer dans la douche.
F. Le bouton de la pomme de douche ne doit PAS être utilisé. Utiliser le bouton
de la pomme de douche entraînera une chute de température en diminuant ou
en interrompant l’écoulement d’eau par le chau󰀨e-eau, ce qui provoquera sa
fermeture.
G. Les limiteurs de débit sur les robinets et pommes de douche devraient être
enlevés pour une meilleure performance.
POUR ÉTEINDRE LE ON DEMAND WATER HEATER
1. Pour les appareils qui utilisent l’ensemble de commutateur et d’éclairage, mettre
l’interrupteur en position d’arrêt (OFF).
2. Pour les appareils qui utilisent le CENTRE DE COMMANDE instantané, appuyer
sur le bouton de mise sous tension une fois.
3. Couper l’alimentation électrique de l’appareil.
4. Couper l’alimentation en gaz.
5. Si le véhicule sera entreposé ou si le chau󰀨e-eau sera éteint lorsque soumis à
des températures basses, vider le chau󰀨e-eau. (Voir les « Instructions relatives
à l’entreposage et au vidage ».)
DÉPANNAGE RELATIF AU FONCTIONNEMENT
ATTENTION
Pour votre sécurité, TOUTES les réparations et/ou l’entretien de l’appareil doivent
être e󰀨ectués par votre dépositaire ou un technicien d’entretien qualié.
REMARQUE : Il doit y avoir une demande d’au moins 1,9 LPM pour que le brûleur
fonctionne et permette le passage de l’eau. Cela continuera jusqu’à ce que
l’écoulement d’eau soit coupé et que le système soit inactif.
AUCUNE EAU NE S’ÉCOULE DU ROBINET LORSQU’IL EST OUVERT :
1. S’assurer que l’alimentation en eau est OUVERTE et qu’il n’y a pas de
restrictions imposées à l’utilisation de l’eau.
LE BRÛLEUR S’ALLUME, MAIS LA TEMPÉRATURE FLUCTUE DE FAÇON
IRRÉGULIÈRE :
1. Ce problème peut être causé par une obstruction dans les pommes de douche,
aérateurs de robinet ou ltres d’eau.
2. Nettoyer au besoin et enlever toute obstruction.
LE ON DEMAND WATER HEATER S’ALLUME ET S’ÉTEINT ET SE RALLUME
RAPIDEMENT :
1. Le débit d’eau est trop bas. Augmenter le débit avec le robinet.
2. Nettoyer toutes les pommes de douche, tous les aérateurs de robinet ou ltres
d’eau (au besoin) et enlever toute obstruction pour assurer un débit minimum de
1,9 LPM.
3. Vérier que la pompe à eau fonctionne correctement.
4. Purger l’air des tuyaux en ouvrant tous les robinets d’eau.
5. Si le chau󰀨e-eau e󰀨ectue son cycle en même temps que la pompe fonctionne, un
réservoir d’accumulation doit être installé dans le système de distribution d’eau. Si le
réservoir d’accumulation est déjà installé, vérier s’il y a de l’eau dans le réservoir et
vider le réservoir jusqu’à ce qu’il contienne uniquement de l’air.
6. La pression de la source d’eau uctue trop faiblement, provoquant une perte de
débit. Vérier que la source d’eau entrante est de 206,84 kPa.
LA TEMPÉRATURE DE L’EAU EST TROP BASSE LORSQUE LE DÉBIT D’EAU
EST PLUS BAS :
1. Le débit d’eau est trop bas. Augmenter le débit du robinet pour assurer un
écoulement d’eau minimum de 1,9 LPM.
LA TEMPÉRATURE EST TROP HAUTE OU IL N’Y A PAS DE CONTRÔLE DE
TEMPÉRATURE :
1. Pour les appareils avec les ensembles interrupteur et voyant standard, ajuster les
commutateurs DIP à la température souhaitée. Se référer aux INSTRUCTIONS
DE FONCTIONNEMENT AVEC L’ENSEMBLE D’INTERRUPTEUR ET
DE LUMIÈRE et voir la Figure 12 pour plus d’informations pour régler les
commutateurs DIP à la température souhaitée.
2. Pour les appareils qui utilisent le CENTRE DE COMMANDE instantané, appuyer
sur les èches HAUT ou BAS sur le CENTRE DE COMMANDE instantané pour
augmenter le point de CONSIGNATION de la température par incréments simples.
Se référer aux INSTRUCTIONS DE FONCTIONNEMENT AVEC LE CENTRE DE
COMMANDE INSTANTANÉ EN OPTION et voir la Figure 13.
FAIBLE AUGMENTATION DE LA TEMPÉRATURE ET DÉBIT D’EAU EXCESSIF
NÉCESSAIRE POUR DÉCLENCHER LE ON DEMAND WATER HEATER :
REMARQUE : Si votre chau󰀨e-eau nécessite un débit excessif pour être activé (plus
de 1,9 LPM), il est possible que de l’eau FROIDE soit purgée dans le côté de l’eau
CHAUDE de votre système de distribution d’eau.
1. Vérier que les soupapes et les robinets sont fermés lorsqu’ils ne sont pas en
cours d’utilisation. Vérier si la pomme de douche a un bouton/levier ON/OFF
(MARCHE/ARRÊT) et s’assurer qu’il est en position d’arrêt pour empêcher l’eau
froide d’être purgée dans le système à eau chaude. Cela peut empêcher le On
Demand Water Heater de fonctionner correctement.
2. Si votre VR possède une soupape de dérivation sur le raccord de la plomberie d’eau,
s’assurer qu’elle est en position arrêt (OFF). Une soupape ouverte peut permettre à
l’eau de contourner le chau󰀨e-eau, provoquant ainsi l’échec de l’allumage.
3. Connectez le l ORANGE á la lampe LED (+) et au l BLUE á la lampe LED (-).
AUCUN ALLUMAGE :
Si le brûleur ne s’allume pas, les éléments suivants devraient être vériés avant
d’appeler un technicien d’entretien :
A. Interrupteur fermé.
B. L’alimentation de 12 Vcc est SOUS TENSION
C. L’alimentation en gaz du chau󰀨e-eau est vide ou coupée.
D. L’eau et le robinet sont ouverts.
E. Vérier la réinitialisation manuelle sur l’interrupteur ECO. Se référer au POINT
« A » de la Figure 9.
Si le brûleur n’allume pas, appeler un centre d’entretien Suburban ou une agence
d’entretien de VR locale.
ENTRETIE
AVERTISSEMENT
Si l’utilisateur de cet appareil ne le maintient pas dans l’état dans lequel il a été expédié
de l’usine ou si l’appareil n’est pas utilisé uniquement pour son usage prévu ou n’est
pas entretenu conformément aux instructions dans ce manuel, le risque d’incendie et/
ou de production de monoxyde de carbone présent peut causer des blessures, des
dommages matériels ou même la mort.
Pour votre sécurité, toutes les réparations devraient être e󰀨ectuées par votre
dépositaire ou un technicien d’entretien qualié.
A. Examiner l’appareil régulièrement pour déterminer la suie. S’il y a présence de
suie sur le chau󰀨e-eau, éteindre immédiatement l’appareil et contacter votre
dépositaire ou un technicien d’entretien qualié. La suie indique une combustion
incomplète et ce problème doit être corrigé avant de faire fonctionner le chau󰀨e-
eau. Les éléments à vérier incluent :
1. Vérier si le bouchon de l’évent est obstrué.
2. Vérier qu’aucun corps étranger ne s’est accumulé dans l’évent et
n’empêche la sortie des gaz ou l’entrée d’air.
3. S’assurer qu’il n’y a pas de amme au niveau de l’orice du brûleur ou
sur le brûleur lorsque le robinet de gaz principal est fermé. Ceci peut être
vérié en mettant l’interrupteur ON/OFF (MARCHE/ARRÊT) à la position
d’arrêt.
B. Vérier le câblage et les raccords de câble régulièrement pour s’assurer que la
câblage n’est pas endommagé/e󰀩loché et que toutes les bornes et raccords sont
serrés conformément aux codes (Voir « Raccordements électriques »).
INSTRUCTIONS D’ENTREPOSAGE ET DE
DRAINAGE
Si le VR est entreposé pendant l’hiver, le chau󰀨e-eau doit être vidangé pour prévenir
les dommages dus au gel.
1. Couper l’alimentation électrique du chau󰀨e-eau avec l’interrupteur, le centre de
commande instantané ou le retrait du fusible.
2. Fermer l’alimentation de gaz du chau󰀨e-eau.
3. Éteindre la pompe à pression sur le système d’eau.
4. Ouvrir les robinets d’eau chaude et d’eau froide.
5. Retirer le panneau d’entretien pour avoir accès à la vanne de décharge du système.
6. Tourner le bouton du robinet de vidange dans le sens horaire des aiguilles d’une
montre pour vider.
7. Suivre les instructions du fabricant de VR pour vider complètement le circuit d’eau.
REMARQUE : Le système devra être rempli d’eau et l’air devra être retiré des
conduites avant de rallumer l’appareil.
REMARQUE : L’eau doit être vidée à l’extérieur du VR - Les tuyaux de drainage
doivent être connectés aux systèmes d’évacuation et de condensation sur le
chau󰀨e-eau et reliés à l’extérieur du VR. Les tuyaux de drainage devraient être le
plus courts possible et maintenir une chute de 6,35 mm par mètre de l’appareil. Voir
la Figure 10.
PRÉPARATION POUR L’HIVER
1. Suivre les instructions du fabricant de VR pour vidanger complètement le circuit
d’eau.
2. Une fois vidangé, de l’antigel NON TOXIQUE pour VR peut être ajouté si
recommandé par votre manufacturier d’autocars.
PROTECTION ANTIGEL
Le chau󰀨e-eau NAUTILUS (IW60) à la demande a intégré la PROTECTION DE
CONGÉLATION et intermittente le cycle du brûleur lorsque la température de l'eau est
tombée en dessous de 4,4 ° C (40 ° F). Ce cycle intermittent se poursuivra jusqu'à ce que la
température de l'eau ait dépassé 50 ° F (10,0 ° C). Pour fournir cette protection contre le gel,
l'alimentation en gaz doit être allumée, le gaz doit être disponible et l'alimentation électrique
doit être activée.
Si le On Demand Water Heater égoutte de l’eau dans le tuyau de vidange par temps froid
lorsque la température de distribution de l’eau est sous 3,3 °C et ne s’arrête pas lorsque la
température est plus élevée que 3,3 °C, appeler votre service d’entretien local. Le robinet
peut être fermé en tournant le robinet à aiguille situé à l’avant du On Demand Water Heater
de 5 tours et demi dans le sens des aiguilles d’une montre. Fermer le robinet désactivera