Sig Marine 100, 170, 180, 200, 250 Instruction Manual

Sig Marine Products

#407-204 Cayer St. Coquitlam

B.C. Canada V3K 5B1

www.sigmarine.com

[e-mail]

T: 800 659 9768

Stoves / Heaters

Instruction Manual

MODELS

100, 120, 170, 180 HEATERS & 200 , 250 STOVES

This manual must be read and the requirements carried out

to ensure satisfactory performance.

SIG MARINE RESERVES THE RIGHT TO MAKE CHANGES TO PRODUCTS

OR DOCUMENTS AT ANY TIME

QUALITY INSPECTED BY- Doug & Don DATE- Nov 5/2008

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CONTENTS

Warnings and Disclosures pg-2 Burner Assembly pg-20
Installation Diagrams pg-3 Burner Diagram pg-21

Clearance Diagram pg-4 Air & Balanced Draft pg-21

Location pg-4 Draft Assist Fan pg-22
Mounting and Securing pg-5 Checklist pg-23
Flue Stack (chimney) pg-6 Lighting Instructions pg-24

Barometric Install pg-6 Operating tips pg-26

Deck Fittings pg-7 Flooding Burner pg-27
Fuel Supply pg-8 Water Exchanger pg-27

Fuel Pump Install pg-8 Exchanger Install pg-28
Pump Diagrams pg-10 Burner Cleaning pg-29
Fuel Overflow pg-12 Casting Maintenance pg-31

Fuel Diagram pg-13 Trouble Shooting pg-32

Fuel Variations pg-13 FAQ pg-33

Fuel Measurement &Adjustment pg-14 Limited Warranty pg-34

Valve Info pg-15 Warranty Form pg-35

Valve Rebuild pg-16

Fuel Consumption pg-17

Valve Diagram pg-19

Valve Safety Features pg-20

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Warnings and Disclosures

- Follow all installation and operating procedures.

- The oil heater/stove requires an installed flue for correct operation.
Do not attempt to operate the heater/stove without the flue chimney installed
correctly as required in this manual.

- A permanently open fresh air inlet vent must be installed near the heater/
stove to provide air for the combustion or balance draft system installed.

- The fuel supply must have a manual shut-off at the fuel tank as well as a
manual shut-off near the heater/stove.

- The fuel must be filtered to at least 10 microns and not exceed 4 PSI of
pressure.

- The fuel type stamped on the side of the oil metering valve is the same as
the fuel in the tank. D-diesel, SO- stove oil or #1 diesel , K-kerosene

- A barometric damper installed and adjusted is a must for good draft and
complete combustion.

- Do not use substitute valves, burners, or fan motors

- Keep the flames burning completely above the top burner ring after heater
is warmed up.

- Turn off the heater/stove when refueling.

- DO NOT OPERATE THIS HEATER/STOVE UNATTENDED !

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Installation Diagram

NOTE: Not all installations will require balanced draft, a pump, gravity tank, or elbows.

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Clearance Diagram

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Installation Guidelines

Location

The location of the heater/stove must be large enough to provide safety clearances.
Objects and materials closer to the heater than 6” must be lined with high density, heat
retardant insulation and covered with metal (stainless steel, aluminum, etc.). Another
alternative is using ceramic tiles. Particular care must be taken to protect the surfaces
close to the first section of flue pipe.
The install location should also take into account the length and configuration of the flue
stack. It is generally preferable that the flue stack be a long straight run. If you have the
option, avoid having to use elbows. Consider installing a balanced draft see pg-21.

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Ideally, the heater/stove should face the bow or stern of the vessel, particularly on a
sailboat. Fuel gravity feeds from the oil-metering valve into the burner. Should this valve
drop below the level of the burner, fuel will not flow uphill into the burner and the fire
will go out. In a beam-facing sailboat installation, the oil metering valve may have to be
relocated to the side of the heater. There are holes on the side to hold the repositioned
valve bracket. If you have any doubt regarding the need for a valve bracket, please ask
your dealer or email [e-mail]

Mounting and Securing

Model 180 heater holes have been provided in the feet to allow appropriate fasteners to
secure. The drip tray will then slide under the bottom of the heater.
Model 200 & 250 unscrew the acorn nuts on the front bottom panel. Unclip the speed
control wires. Secure the tie-down bar (supplied) to the floor 2 ins from the back of the
area where the stove will sit. The raised ends of the bar must be up, to allow the side
flanges (“feet”) of your stove to slide underneath. This will allow the stove to be slid
forward for service and cleaning while also securing it firmly to the boat.
The stove must be leveled and secured at the front through the bolt holes at the base of
the side panels. Use the fastener appropriate for the material of the floor where the stove
is to be secured. The finishing tray (supplied) will slide under the stove.
Model 100 to 170 use appropriate hardware to secure the heater to insulated area.

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Flue Stack

The length and straightness of the flue stack are important to the efficient operation of the
heater/stove. The Flue stack must be the correct diameter. If elbows must be used, the
elbows shall not be greater than a 45 degree angle. The first elbow should not be closer
than 12” (28cm) to the heater/stove. Allow for as much straight pipe as possible before
the first elbow. The stove pipe will attach to the stove by squeezing the round pipe

over the oval flue collar when installing.

A Barometric Damper is a MUST FOR BEST COMBUSTION.
The barometric damper should be installed in oil and solid fuel heaters and stoves. The

purpose is to maintain a strong draft without causing too much air to the fuel mixture.

When the damper is adjusted the draft is altered by allowing air to be pulled into the
chimney by the air inlet on the damper and not pulled into the primary mixing holes in
the burner.
Install the barometric tee pipe with the front flap facing fore and aft.
In order for the barometric to work efficiently it must be installed between 12” and 24”
from the heater/stove exhaust collar. If using a pipe guard turn the barometric tee to the
back as it does not have to be seen to work.

To adjust the flap on the barometric back off the jam nut and turn the counterweight so
the flap is standing closed. The valve must be set to flow 1 teaspoon per the amount of
seconds as per the list of fuel flow measurements on page 12, and on the #1 lowest
setting. Once the heater/stove has been burning for some time and the room temperature
is starting to rise is a good time to do the adjustment.

Adjust the counterweight so the flap starts to open (aprox 6mm or ¼”). This will allow air
to enter the barometric tee and reduce the air entering the burner. This will cause the
flame to burn above the top burner ring. If the flame is still burning below the ring adjust
the flap open another 3mm or 1/8”. At this time if there is flame burning below the top
burner ring and the barometric flap is open aprox 9mm or 3/8” do not adjust the flap open
any further and re-adjust the valve fuel flow rate until the flame is above the ring.

This adjustment need only done once after the install and the jam nut can be re-tightened.
The draft above the top of the fire will be aprox -.05 inches of water column, should you
have a draft meter, however adjusting the damper as above should get you close enough.

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4” Standard (10.16cm)

4” Standard (10.16cm)

Sig Marine can supply you with a stainless steel thru-deck fitting for your pipe
installation. The thru-deck fitting includes a stainless steel dress ring for the interior of
the cabin and a rubber (neoprene) gasket easy mounting. Depending on the contour or the
angle of the cabin top, you may need to make a hardwood spacer block. One surface of
the block would be a level plane to mate to the deck cap. The other would match the
angle or contour of the cabin top. A hole through the center of the block would be 2
inches greater in diameter than the flue pipe.

Flue Diameter Recommended

Length

Sig 100 3” (7.62cm) 6 ft (1.83m) 3 ft (0.92M) 5” (12.7cm)

Sig 120 3” (7.62cm) 6 ft (1.83m) 3 ft (0.92M) 5” (12.7cm)

Sig 170 3” (7.62cm) 6 ft (1.83m) 4 ft (1.23m) 5” (12.7cm)

Sig 180 3” (7.62cm) 6 ft (1.83m) 4 ft (1.23m) 5” (12.7cm)

Sig 200

5” Optional (12.7cm)

Sig 250

5” Optional (12.7cm)

6 ft (1.83m) 4 ft (1.23m) 6” (10.16cm) Standard

6 ft (1.83m) 4 ft (1.23m) 6” (10.16cm) Standard

Minimum Length Hole Diameter

7” (17.78cm) Optional

7” (17.78cm) Optional

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The H style flue caps are recommended, especially if the balanced draft system is not
used. The location of the flue cap above deck must be clear of any immediate obstruction
that may cause unusual air movement or turbulence. CAUTION : The Flue Cap gets hot
when the stove is operating.

Note: The caps, pipe, and deck fitting may appear to have a rusting look. This is caused
by operating the heater too rich. This will produce soot that will leave carbon deposits on
the stainless steel giving the appearance of rust, much like cleaning stainless steel with a
steel SOS pad. The stainless can be cleaned with a scotchbrite pad to remove the rusty
looking surface.

Fuel Supply

Fuel is supplied to the oil-metering valve of the heater/stove from a gravity feed tank or by a
low-pressure pump direct from the main fuel tank. The fuel metering valve is rated to an
incoming fuel pressure of 3 psi. If fuel supply exceeds 4 psi a pressure regulator will be
needed in the supply line.

 Install a gravity tank no higher than 8 feet above the valve of the heater without a

pressure regulator.

 Install a low pressure fuel pump with a pressure no greater than 4 psi (2.5-3 psi is

ideal)

Install a low pressure fuel regulator set to within a range of 2.5-4 psi. When a gravity
tank is used a minimum head of fuel 12" (30.48 cm) above the fuel level marked on the
side of the oil-metering valve is required to operate the oil-metering valve. The gravity
feed tank must be vented and all fuel lines must be as straight as possible to avoid air
locks. The fuel inlet is a 1/8 npt female thread .

#15078 FRD-2 3 PSI FUEL PUMP

&

#15079 FRD-HD c/w REGULATOR FUEL PUMP

• These are 12 volt DC pumps. The factory spring pressure for the #15078 FRD-2

pump is set at 3 PSI (max 6 ft. lift).

• The #15079 FRD-HD pump has a stronger pressure spring that will draw the fuel

higher (max 15 ft. lift) but will need the regulator to adjust the pressure down to 3
PSI before the fuel goes to the oil metering valve.

• You must use a fuel oil filter in your installation before the pump to keep debri

from plugging up the 3 check valves inside the pump.

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• When the oil metering valve (carburetor) is full and the line is up to pressure, the

pump will still “tick” but less frequent depending on the demand from the oil
metering valve. NOTE: Include the pump in a control circuit with a 3 amp fuse )
(16 awg wire) so you can turn it off when the heater/stove is not in use.

• NOTE: If the power to the pump is shut off, the fuel could still flow through to

the pump by way of siphon. The flow of fuel should be turned off using the

shut-off valve near the heater/stove as well as the oil metering valve.

• IMPORTANT! This pump must be installed as high as the oil metering valve (or

higher). This pump is a “pull” pump rather than a push pump, and must be
installed so that the fuel oil is pulled as high as the oil metering valve and gravity
feeds back down to the valve. Use a rubber backing as a washer to soften the
sound of the pump and use appropriate screws to mount the pump.. If there is no
fuel getting to the oil metering valve, you may need the heavy duty pump #
15079, or call / email Sig Marine for retrofitting a stronger pressure spring in your
pump and installing a pressure regulator # 15074 between the pump and the
valve(converting a #20-000 FRD-2 pump to a #20-002 FRD-HD pump).

• The pumps can be installed with fuel inlets and outlets up or down (1/8 npt

thread), however mounting the pump with the fuel inlet on top (Note the fuel
OUTLET is on the end of the pump that has the wire connections and the 3
assembly screws), will give the pump extra pressure and is easier to clean but will
need to be primed the first time only to remove air in the fuel line). There are 3
check valves in the pump to prevent the back flow of fuel, so the pump should
stay primed. If the pump does not stay primed then 1 of the check valves in the
pump needs cleaning.

• To prime the pump disconnect the fuel line at the valve fuel inlet and pump fuel

into a container to remove all the air in the fuel lines. After a cup of fuel has been
pumped, reconnect fuel line to the valve.

• The pump should be installed in a ventilated area and not near a hot exhaust.

• Ground to negative battery (not recommended for gasoline).

• To retrofit the pump to a higher pressure unscrew the 3 torx screws (t-20) and

with twisting the lid back and forth, pull it straight back off. Note the pump
plunger, spring, check valve , and a very small amount of fuel will drop out if
installed as per diagram. Place the check valve as shown in the diagram on top of
the heavier replacement spring, and the spring on top of the pump plunger and
push it back into the pump body holding it in with a finger. Note the magnetic
part of the plunger is on the opposite end of the spring. Replace the lid with the
gasket on by lowering your finger on to the red O ring sleeve without the
plunger falling out ( the plunger is about 2” long so you have room to lower your
finger out of the way). The red O ring sleeve will fit inside the pump tube and the
black O ring will fit over the outside of the pump tube and will require twisting
and pushing the lid straight back in. This is a little tight but that is what makes
the seal. Rotate the gasket and replace the screws.

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