Heating System - Monitor Products

KERO5UN
Owner's Guide
MONITOR 201
Heating System
Series A
MONITOR 20
Congratulations...
. . . on your purchase of a Monitor 20® Heating System—the optimum in heating comfort, convenience
and efficiency.
You have made your choice, so you already know about the Monitor 20's large heating capacity,
ease of operation and high level of efficiency. What you may not know about are the extra heating advantages the Monitor 20 offers.
Most heating systems, including conventional oil and gas furnaces, use inside air to support combustion. When the heat is off, this inside air is allowed to escape through an open flue.
The Monitor System, with its sealed combustion chamber, works in a different way. OUTSIDE air
enters the heater by means of a special combustion fan through a unique pipe-with;n-a-pipe flue system.
As the outside air enters the Monitor 20, it extracts heat from the hot exhaust air on its way out. Room air
is not allowed to escape, even when the unit is off.
OUTDOORS
OUTDOOR
AIR
EXHAUST
But this is just part of the Monitor efficiency story. In conventional heating systems—central furnaces,
fireplaces, woodstoves—which induce air infiltration, energy is wasted, and comfort is affected by cold
drafts around the perimeter of the building. The Monitor 20, with its closed system, does not cause air
infiltration and, therefore, does not increase room draftiness.
There are other advantages to the Monitor 20. Compact size, and attractive design allow its use in
almost any decor. Because it's located where you live, not in a basement or other remote area of the
building, transmission losses typical of conventional heating systems are avoided.
The total design of the Monitor combustion system, combined with the superior performance of kerosene, saves heat in other ways, too. The quiet warm air circulation fan helps distribute heat evenly and
quickly.
The temperature selector and remote sensor allow you to set and maintain the comfort level you
desire, and the automatic system takes over from there. Combustion is controlled automatically through
the heater's high, medium, low and off modes—never too much or too little—no more ON/OFF,
HOT/COLD of other heating systems.
For further economy without the loss of comfort, the built-in automatic clock can be programmed to
turn the Monitor 20 off when it's not rieeded and on just before you wake up or come home from work.
All of these things—pipe-within-a-pipe closed system, automatic controls, temperature selection,
multiple heat levels, circulation and combustion fans and kerosene fueling—are designed, engineered
and built to work together as a highly efficient system—The Monitor Heating System. We at Kero-Sun,
Inc. are justifiably proud to provide you with this product.
On the following pages you will learn how easy it is to install, operate and maintain your Monitor 20.
Please read and follow the instructions carefully to assure yourself the utmost in heating satisfaction.
KERO5UN
MONITOR 20
FOR QUICK REFERENCE
SECTION A: Specifications
Monitor 20 Heating Guide
Special Features
Safety Features
SECTION B: Tools Needed for Installation
Accessories You May Need
•
-
PAGE
. ,6
6
" 7
7
8
9
SECTION C: Heater Installation
SECTION D: Fueling
Refueling
Fueling Options Available
External Tank Installation
10
22
25
25
25
SECTION E:
SECTION F:
SECTION G:
SECTION H:
Starting Instructions
Adjusting Room Temperature
Turning Off the Heater
Relighting the Heater
26
28
30
30
SECTION I:
Programming the Heater
Setting the Clock
Programming for Automatic Operation
Manual Operation
30
30
31
31
Protective Features
Lossof Power—Automatic Reset
Electrical Fuse
Overheat Prevention - Manual Reset
SECTION K: Care of the Heater
SECTION L: Troubleshooting Guide
31
31
32
32
33
39
SECTION J:
Parts List
40
Limited Warranty
43
SECTION A
SPECIFICATIONS
Model
Fuel Type
Heater Efficiency
Heater Rating
Heater Output
Fuel Tank
Fuel Consumption
Monitor 20® (Series A)
Crystal Clear Kerosene
92%*
High: 19,600 BTU/hour
Medium: 13,750 BTU/hour
Low: 7,900 BTU/hour
High: 18,000 BTU/hour
Medium: 12,500 BTU/hour
Low: 7,100 BTU/hour
1.53 Gallons
High: .155 Gallon/hour
Medium: .11 Gallon/hour
Low: .06 Gallon/hour
120 Volts AC; 60 Hz.
Power Source
Power Consumption
Ignition: 152.5 Watts
Operation: 82.5 Watts (Average)
Heated Air Delivery
High: 210 Cubic feet/minute
Medium: 210 Cublic feet/minute
Low: 160 Cubic feet/minute
Vent Pipe Hole
21/2-inches Diameter
Dimensions
Height: 25!/4 inches
Width: 30% inches
Depth: 18^ inches
Weight
93 Pounds, empty
* The energy from the combustion process is released in the form of heat and vaporized water. Normally,
heating systems discharge water from combustion to the atmosphere without condensing it. This 92%
efficiency rating means that, assuming the water cannot be condensed, 92% of the heat produced by
the combustion process is recovered. Assuming the water can be condensed, then the efficiency is
86%.
MONITOR 20 HEATING GUIDE
The amount of heat you need depends on several factors—where you live, the number and intensity of
cold days in your area and how well insulated your home or business is.
To help you calculate the Monitor 20's heating capacity for your situation, the U.S. map in Figure 1
divides the country by weather conditions. Locate the zone that applies to you and note the estimated
area the Monitor 20 will heat. Estimates are based on an average, well-insulated house.
ZONE1 1300-1900 sq.ft.
ZONE 2 1000-1300 sq. ft.
ZONES 800-1000 sq.ft.
ZONE 4 600- 800 sq. ft.
ZONES 500- 600 sq.ft.
FIG. 1
MONITOR 20
SPECIAL FEATURES
AUTOMATIC IGNITION
DUAL BLOWERS: Separate fans for combustion and room air circulation.
SPILL TRAY: Protects floors and carpets.
THERMOSTATICALLY CONTROLLED: Adjusts to the desired room temperature.
BUILT-IN TIMER: Heater will automatically start or stop at the time programmed by the user.'
INDICATOR LIGHTS: Easy-to-see signals show—when heater is in operation, when timer is activated,
and when the burner is operating in low, medium or high modes. Indicator lights also warn against low
fuel level and water contamination of fuel.
CHOICE OF FUEL SUPPLY: Built-in capsule tank or connect to separate tank.
MULTIPLE HEAT EXCHANGER: Extracts 92%* of heat from burner.
CLEAN OPERATION: Products of combustion are vented outside.
CONSUMES NO ROOM AIR: Air for combustion is drawn from outside.
EASY INSTALLATION: Includes all parts required for standard installation.
SAFETY FEATURES
SAFE RE-LIGHTING: Heater will not restart until its combustion chamber has cooled.
ELECTRICAL PROTECTION: Heater automatically shuts off in the unlikely event of a malfunction in the
electrical circuitry or disruption of the power supply.
NO EXHAUST IN ROOM: Products of combustion are discharged outdoors.
FLUE PIPE: Outside air is drawn through a pipe-within-a-pipe venting system. This process preheats
combustion air and regains heat from exhaust gases.
* The energy from the combustion process is released in the form of heat and vaporized water. Normally,
heating systems discharge water from combustion to the atmosphere without condensing it. This 92 %
efficiency rating means that, assuming the water cannot be condensed, 92% of the heat produced by
the combustion process is recovered. Assuming the water can be condensed, then the efficiency is
86%.
KEROSUN
SECTION B
BEFORE INSTALLING YOUR HEATER, BE SURE TO CHECK AND COMPLY WITH LOCAL AND
STATE BUILDING AND ELECTRICAL CODES THAT MAY APPLY TO VENTED HEATERS IN
YOUR AREA. PERMANENT WIRING MUST BE INSTALLED BY A LICENSED ELECTRICIAN.
TOOLS NEEDED FOR HEATER INSTALLATION
Check the following charts to be sure you have all the tools required to install your Monitor 20® Heating
System.
STANDARD TOOLS
Phillips Head Screwdriver
Steel Tape Measure
Pen or Pencil
Exterior Caulk
Yardstick or Long Straight Edge
Soapy Water
APPLICATION
Installation of Heater Parts
Taking Measurements
Marking Drilling Location
Caulking Between Packing and Wall
Checking Angle of Hole for Flue Pipe
Lubricating Sleeve Hardware
SPECIAL TOOLS
APPLICATION
Accommodating Hole Saw and Drill Bit
Cutting Hole for Flue Pipe
Drilling Pilot Hole Through Wall
Checking Angle of Hole for Flue Pipe
Electric Drill
21/2-inch Hole Saw Attachment
Long '/4-inch Drill Bit
Level
8
MONITOR 20
ACCESSORIES YOU MAY NEED
Check the list below and see your Kero-Sun, Inc. dealer for accessories you may need or want for installation of your heating system.
ACCESSORY
APPLICATION
Wall Mounted Fuel Tank
Electric Suction Pump
For small capacity, gravity fed outside fuel supply
For use with large capacity tank where gravity feed is
not practical
For use where wall thickness is greater than 8 yt inches
For use where "through-the-window" flue pipe installation is desired
For use where "standard" installation is not practical
Long Flue Pipe
Window Installation Kit
(See Window Installation below)
Small, Medium or Long Extension Kit
(See Flue Pipe Extensions, page 10)
Cold Weather Exhaust Protector
Fittings and Tank
For protection of exhaust system in cold climates
(below 0°F)
For large capacity fueling: To be dealer installed
WINDOW INSTALLATION
The use of "through-the-window" installation for
your flue pipe will require a window installation kit
and one of the 3 (short, medium or long) extension kits.
In order to determine which extension kit is required, measure the distance from the floor to
the TOP of your window sill (see Figure 3) and
refer to the chart below.
FIG. 3
IF THE MEASUREMENT IS:
22 to 30% inches
30%, to 48 !4 inches
48y 3 to 83!4 inches
YOU NEED:
Short Extension Kit
Medium Extension Kit
Long Extension Kit
NOTE: Window kit installation is prohibited when the window is required to meet the local building code
requirements for ventilation, emergency escape, or rescue.
9
KEROSUN
FLUE PIPE EXTENSIONS
Three standard extension kits are available from your Kero-Sun, Inc. dealer. Most installations can be
made with one of these kits. In special cases, custom installations may be required. These may be made
with components purchased from your dealer.
In any installation the following limitations MUST NOT BE EXCEEDED:
1. The total length of extension pipe between the heater and the outside tip of the flue pipe must not
exceed 10 feet each for the air intake pipe and the exhaust pipe.
2. Neither the air intake pipe nor the exhaust pipe may have more than 3 elbows, counting the
elbows at the heater. The air intake elbow, and the integral bends in the flue pipe are not counted as
elbows (See Figure 4).
3. The correct air damper as shown on page 41 must be used.
Exhaust Elbow
90° Joint
FIG. 4
Air Intake Elbow
Flue Pipe
•Do not count
SECTION C
HEATER INSTALLATION
10
Step 1: Fill Out Owner Registration Card
Remove your owner registration card from the plastic packet on the outside of the shipping carton. It
should be filled out and mailed as soon as possible.
Step 2: Check for Parts
Before discarding packing materials, be sure you have located the following: (See parts list for illustration)
Flue Pipe
Sleeve
Sleeve Nut
Spill Tray
Sensor (attached to fan cage on back of heater)
Cardboard Template (in bottom of box)
"S" Damper
"E" Damper
Wall Clamps (2)
Rubber Packing
Joint Pipe
Cloth Insulation Cover
MONITOR 20
Outer Flange
Pipe Holder
Hose Band
Exhaust Guard
Small Bag of Screws
Tapping, Type A — #8x%
Machine — #8-36x7t8
Machine — #8x5/16
Small Plastic Syringe
Manual Siphon
For securing
sleeve and
wall clamps
For securing
flue pipe to
sleeve
For securing
exhaust guard to
flue pipe
SIZE
#8x%
Tapping
#8-36x'/,6
Machine
#8x?,e
Machine
FIG. 5
Step 3: Choose a Location for Your Heater
In choosing a location for your heater, the following guidelines must be considered:
• The heater MAY be installed on combustible floors.
• The area around the heater should be free of obstacles that might interfere with the free flow of air.
Allow the clearances shown in Figure 6.
FIG. 6
• An AC wall outlet must be within reach of the heater's power cord. Extension cords must NOT be
used.
• The area outside where the flue pipe will emerge should be free of foliage, fuel storage tanks
and flammable objects. Air should circulate freely in the area. Allow the clearances shown in Figure
7 on the next page.
• The wall where flue pipe hole will be cut should be free of plumbing pipes, electrical wires,
studs, air ducts and other obstacles.
IQIPUIE F8R ORIUJHG VEHT PIPE HOLE FOR KEM-SRf
*u« HIPUTEWtlin flu aa-:
.
- . ' , - . KIKtt.
NOTE: Use the cardboard template provided with
your heater for flue pipe location (Figure 8).
11
KEROSUN
FLUE PIPE CLEARANCES
Flue pipe installations should provide for venting to an unconfined space through which there is a free
flow of outdoor air. Clearances to adjacent walls or obstacles must comply with the requirements
shown below.
=
|
Combustible u.
t
24" (60 cm)
or more
4
5]/z"
(14
cm)
«-or^
more
51/2" ,[
(13.5cm)
I
Body
Clamp ~
— Wall
E3
&
Any construction
above Flue Pipe
must not come
within 24" (60 cm) -*
of front obstacle
24" (60 cm)
or more
>
Front Obstacle
~
"K
' llfl ifTs
nj pliia
nue Pinp
rifje
E
—
1
8" (20 cm)
or more
Heater
i
Ground or slab surface
Frontal Clearance
Non-combustible
Combustible -» iMiumiimiwumi i iiiiiiiiiiiiMiii
*-
— Wall
24" (60 cm)
or more
/JT
/ ,iir
IIIIIIIIIIIIIIIIMIllLr
5V 2 " J
(13.5cin)
/
Body
Clamp
Heater —
Combustible
imiiimimiiiiiiiini IIIIIIIIIIIII|||IMM!IIIIIIII|IIIIIIIIIII
IE)
/
1
?
x&
sf|
=
or more
t
.,0 /
^/
/
Vtn
3^
7 24"
t (60 cm)
12" (30 cm)
or more
^
~ Flue Pipe
Ground or slab surface
Overhead Clearance
Side obstacle
Body
Clamp
\
iimiiiiiiiiiiiiiiiiiimiiimiiiiMiiiiilllllllll
$
^oj
T
18" (45 cm)
or more
TT-T- r\
1
P=0- -|
Flue Pipe
Heater *J— Wall
Side Clearance
FIG. 7
12
MONITOR 20
Step 4: Drill a Pilot Hole
NOTE: The following directions apply to "standard" installation. For other methods, follow instructions included with accessory kits.
For walls more than QY2 inches thick, use a Long Flue Pipe Kit (See accessories).
Use the template to position the hole to be drilled. The "red dot" indicates the exact center of the hole.
Using an electric drill and a long drill bit, make a pilot hole through the wall (Figure 9). Be sure the hole
extends through the outside wall.
' ;p,' - . • • I
," .'"^l***!.-.-,„,,.-„_.;
CAUTION: THE OPENING ON THE INSIDE WALL SHOULD BE APPROXIMATELY 1/2 INCH HIGHER
THAN ON THE OUTSIDE WALL SO THE FLUE PIPE WILL SLOPE DOWNWARD WHEN INSTALLED. THIS WILL ALLOW CONDENSATION TO DRAIN OUTDOORS.
Step 5: Cut the Hole for the Flue Pipe
Using a hole saw attachment and an electric drill, cut a 2'/2-inch diameter hole through the inner and
outer walls (Figure 10).
13
KEROOJN
After the hole is cut, use a straight edge and a level to be sure the inside opening is approximately
/2-inch higher than the outside opening.
Step 6: Install the Sleeve
From inside the room, insert the sleeve through the wall hole. Place the indicator mark "Up" at the top
and fasten the sleeve to the wall with 3 of the #8x% tapping screws enclosed with the,heater (Figure
11). (See Figure 5 for screw sizes and application.)
1
SLEEVE
FIG. 11
Step 7: Install the Outer Flange
Apply caulking material to the inside ridge of the rubber packing (Figure 12).
RED LINE
RUBBER PACKING
FIG. 12
14
Check to see that the red line on the sleeve is on the TOP of the sleeve.
Holding the "Up" mark to the top, slide the rubber packing onto the sleeve (caulk side to the wall).
NOTE: If it is difficult to slide the packing onto the sleeve, apply soapy water to the inside of the packing.
MONITOR 20
Once the rubber packing is in place, slide the outer flange onto the sleeve with the conical side pointing outward (Figure 13).
Screw the sleeve nut onto the sleeve grooves, and tighten it firmly (Figure 14).
OUTER FLANGE
SLEEVE NUT
SLEEVE
SLEEVE
FIG. 13
FIG. 14
Step 8: Install the Flue Pipe
From INSIDE the building, insert the flue pipe (with arrow pointing "up," into the sleeve. Fasten the flue
pipe with the 3-#8-36x7,6 machine screws (Figure 15). (See Figure 5 for screw size and application.)
FLUE PIPE
15
Step 9: Install the Air Damper
Note the two air dampers (see Figure 16). One is marked with an "S" and one is marked with an "E". If
installation is standard (that is, no extension kits are required), insert the air damper marked with an "S"
(see Figure 17) into the air intake flange. Store the remaining air damper marked with an "E" in the air
damper case on the rear of the heater (see Figure 18).
NOTE: If an extension kit is required for the installation, use the correct damper as'follows:
Short Extension Kit
"S" Damper
Medium Extension Kit
"S" Damper
Long Extension Kit
"E" Damper
AIR DAMPER
(1C**
AIR DAMPER
"S"
FIG. 16
AIR INTAKE FLANGE
AIR DAMPER
16
MONITOR 20
CABINET REAR-
Step 10: Install the Exhaust Guard
From the OUTSIDE of the building, attach the exhaust guard to the tip of the flue pipe with the #8xy,6
machine screw (Figure 19). (See Figure 5 for screw size and application.)
NOTE: In cold climates, see that ice does not block the exhaust guard and impede the air flow.
Check with your Kero-Sun, Inc. dealer about an Exhaust Protector. (See accessories listed in Section B.)
FLUE PIPE
EXHAUST GUARD
FIG. 19
17
KERO5UN
Step 11: Install the Spill Tray
Place the spill tray on the floor where you plan to locate your heater.
Remove the 2 sets of screws and the 2 retainers from the spill tray (Figure 20).
Position the heater on the spill tray so the adjustable legs of the cabinet fit into the circular indentations in the spill tray (Figure 21).
RETAINERS
ADJUSTABLE
LEG
SPILL TRAY
ADJUSTABLE LEG
FIG. 20
FIG. 21
Step 12: Level the Cabinet
At the rear of the heater, near the junction box, locate the small chain that serves as a levelling guide
(Figure 22).
By turning each leg of the cabinet clockwise or counter-clockwise, raise or lower the cabinet until the
chain is centered above the small circle below it (Figure 23).
NOTE: Levelling is important for proper operation of the heater.
FIG. 22
18
Step 13: Reattach the Spill Tray Retainers
Reattach and tighten both sets of retainers and screws (Figure 24).
MONITOR 20
RETAINER
FIG. 24
Step 14: Install the Joint Pipe
At the rear of the heater, slide the end of the joint pipe with the larger opening onto the exhaust port
opening on the heater. Slide the fabric cover over the joint pipe (see Figure 25).
FIG. 25
19
KEROSUN
Step 15: Connect the Heater to the Flue Pipe
Move the heater toward the wall, guiding the joint pipe into the center port of the flue pipe. Be sure the
joint pipe is completely inserted into the flue pipe (see Figure 26).
FIG. 26
Step 16: Connect the Air Supply Elbow
Place the hose band around the end of the air supply elbow. Push the air supply elbow onto the air intake
flange and secure the elbow with the hose band (see Figure 27).
FIG. 27
20
Step 17: Install the Flue Pipe Holder
Place the ring of the flue pipe holder around the flue pipe. The other side of the holder hooks in a slot
directly above the joint pipe at the rear of the heater (see Figure 28).
MONITOR 20
Step 18: Fasten the Wall Clamps
Insert the narrow ends of the 2 wall clamps into the sockets on the rear of the heater (see Figure 29). If a
window or other object obstructs the clamps, relocate them to lower sockets.
Loosen the adjustment screws and extend the clamps until they touch the wall. Fasten the clamps to
the wall with 2 #8x% tapping screws (see Figure 30).
21
KERO5UN
SECTION D
FUELING
WARNING: USE ONLY CRYSTAL CLEAR KEROSENE. NEVER USE GASOLINE, WHITE GAS,
CAMP FUEL OR OTHER FLAMMABLE LIQUIDS. USE OF SUCH FUELS CAN RESULT IN AN
EXPLOSIVE FIRE AND CAUSE SEVERE INJURY.
CAUTIONrSIDE OF THE FUSIBLE LINK VALVE THERE IS A RUBBER PLUG SEALING THE CONNECTOR
FOR A SEPARATE TANK INSTALLATION (SEE FIGURE 31). NEVER REMOVE THE PLUG
WHILE USING THE BUILT-IN CAPSULE FUEL TANK. (THE RUBBER PLUG IS REMOVED
ONLY IF YOU USE A SEPARATE FUEL TANK.)
FUSIBLE LINK VALVE
FIG. 31
22
Step 1: Lift Out the Capsule Fuel Tank
To fill with fuel, open the tank cover and lift out the capsule fuel tank (see Figure 32). Turn the tank upside down, and remove the fuel cap. If the fuel cap is difficult to unscrew, press the valve in the center,
and remove.
MONITOR 20
FIG. 32
Step 2: Using the Siphon
To operate the siphon provided with your heater, insert the straight tube into the kerosene container. Insert the siphon's flexible hose into the capsule fuel tank (see Figure 33). For added convenience, a fivegallon Kero-Sun® fuel container is available from your dealer. The siphon provided with your heater fits
snugly over the opening of this container for easier siphoning.
23
KERO5UN
For good siphoning, raise the kerosene container slightly higher than the level of the capsule tank.
Note the vent knob at the top of the siphon; it controls an air vent. Before siphoning, close the vent by
turning the knob clockwise. Squeeze the bulb of the siphon vigorously 6 or 7 times, pausing to allow it to
expand after each squeeze. (Once the kerosene flows it is not necessary to squeeze the bulb.) Watch
the fuel gauge on the capsule tank closely. As the fuel begins to near the full level (see Figure 34), stop
the flow by turning the vent knob on top of the siphon counterclockwise. Remove the siphon slowly to
allow excess kerosene to drain back into the container.
FIG. 34
Step 3: Reinstall the Capsule Fuel Tank
Replace and tighten the fuel cap. To insure proper fuel flow, be sure the cap is secured correctly.
Install the tank with the arrow pointing forward, and close the tank cover (see Figure 35).
Whun using this fuel
tank, this side faces
front.
24
FIG. 35
ARROW
MONITOR 20
REFUELING
Stepl:
When the red light marked "Empty" illuminates and flashes, press the Operation Swich to put it in the
"Off" position and wait 15 minutes for the heater to cool.
/
Step 2:
If kerosene has accumulated in the spill tray or in the chamber which holds the capsule fuel tank, clean
with a towel or rag. Remove any flammable items situated near the heater or flue pipe.
Step 3:
Follow directions under "Fueling."
Fueling Options Available
In addition to the standard capsule tank, the following fueling options are available for use with your
Monitor 20.
1. Wall Mounted Fuel Tank: For small fueling needs. This system, available from your Kero-Sun,
Inc. dealer, is gravity fed and easily installed by anyone handy in making home improvements.
2. Gravity Fed Large Capacity External Tank: Practical for large heating needs where bulk delivery
of kerosene is available. This system should be installed by a qualified plumber or fuel supply
technician.
* 3. Large Capacity External Tank with Pump: For large heating needs where a gravity fed system is
not practical. An electric suction pump, especially designed for use with your Monitor Heating
System, is available from your dealer.
* If a pumping system is used to supply fuel, the inlet pressure to the heater must not exceed 2.5 psi.
NOTE: When using a separate fuel tank with your Minotor 20, the "Empty" light will NOT signal an empty
tank. Watch the gauge on the tank to avoid running out of fuel.
External Tank Installation - Gravity Fed
NOTE: External tank installations must comply with the National Fire Protection Association code NFPA
31 or locally applicable codes, such as the 1979 Uniform Mechanical Code No. 5-1 ,-that are
consistent with NFPA 31. Check with your local building official.
To install a large capacity, gravity fed external tank, follow the instructions below, and refer to Figure 36
for one possible installation. Use of a qualified installer is recommended.
« Installation height of the bottom of the fuel tank should be 16 inches or more above the floor surface on which the heater stands. This insures that inlet fuel pressure will be sufficient.
• The top of the fuel tank should be no higher than 81/z feet above the floor under the heater. This insures that inlet fuel pressure will not be excessive.
• The horizontal length of piping should not exceed 100 feet and should be free of sharp bends or
obstructions.
• Piping should include no inverse U-type bends (to avoid air locks, which could block the fuel supply).
• Only %-inch OD copper tubing should be used. The tubing should be bent carefully to avoid crimping.
• A fuel filter is recommended for use on the fuel line near the tank, and a shut-off valve should be installed at the tank.
25
KERQJUW
• Flare connections should be used at the fusible link valve connection on the heater and at the fuel
filter to be installed at the tank.
• The fuel tank should be located no closer than 6 feet to a source of heat.
• The fuel tank should have an opening for filling on the top and a vent with a weather-proof cap on
the side. On some tanks the vent and fill spout use the same opening.
Outdoor Fuel Tank
Body
Clamp
Shut-off Valve
%" Flare Connection
8V2 feet
maximum
(2.6m)
Fuel Filter
16 inch
%" Flare Connection
N
Fusible Link
Valve Connection
i
%-inch OD Copper Tubing
I
.
FIG. 36
SECTION E
STARTING INSTRUCTIONS
Step 1: Plug in the Heater
Plug in the AC cord, and route it away from the area of the flue pipe. It is recommended that no other
appliance share the same outlet.
Step 2: Prime the Heater
If using the heater for the first time, or if the heater has not been in operation for some time, lift the fuel
set lever at the lower right hand side of the front panel and release it slowly 4 or 5 times (Figure 37).
26
FIG. 37
MONITOR 20
Step 3: Set the Tank Selector
Be sure the arrow on the tank selector at the lower right hand side of the cabinet points toward the capsule tank position (see Figure 38).
CAPSULE
TANK
POSITION
FIG. 38
STOP
ARROW
Step 4: Set the "Auto-Manual" Switch
Set the "Auto-Manual Switch" on the timer panel to "Manual" (see Figure 39).
FIG. 39
Step 5: Set Temperature Selector and Operation Switch
Set the temperature adjustment lever to a mid-range setting of 55° to 75° (see Figure 40). Set the
operation switch on the control panel to "On" (see Figure 40). In approximately 20 seconds the medium
and low lamps will light, indicating that ignition has started. In 5-10 minutes the circulation blower will
start to operate and warm air will be felt coming through the cabinet grill.
27
KEROSUN
SECTION F
ADJUSTING ROOM TEMPERATURE
Step 1: Set the Temperature Selector
Place the temperature selector lever at a trial setting of 70 ° (Figure 40). After the room temperature has
stabilized in 1 to 2 hours, adjust the temperature to the desired level.
The lights on the control panel will indicate the level of heater operation—low, medium or high. The
heater will automatically change its heat output until the desired room temperature is reached. While it
cycles, you may hear the circulation fan change speed.
NOTE: When the heater is first started, the fan will run at high speed. When the desired temperature is
reached, the fan will automatically go to a lower speed.
Depending on the output required to maintain the desired room temperature, the indicator lights will
illuminate in the following pattern:
BURNER MODE
High
Medium
Low
Off
LIGHT PATTERN
High, Medium and Low - On
Medium and Low - On
Low - On
No lights on
* The heater will shut itself off temporarily when the desired room temperature has been reached and
restart automatically when necessary to maintain room temperature.
Step 2: Mount the Heat Sensor
Located on the fan cage at the rear of the heater is a heat sensor that responds to room temperature and
regulates the heater output. Pull the sensor from the mounting clip (Figure 41).
28
MONITOR 20
FIG. 41
Choose a location for the sensor that is not in the path of direct sunlight, drafts or the flow of warm air
from the heater.
Remove the paper tape on the back of the sensor, and fasten the sensor to a trial location on a nearby
wall. When you have found a position that is acceptable, fasten the sensor with the screw provided
(Figure 42).
NOTE: Standard speaker wire may be used to extend the heat sensor wire to a total length of 30 feet. If
the speaker wire is extended, check to see that operation is normal before leaving the heater for
an extended period of time.
29
SECTION G
TURNING OFF THE HEATER
To turn off the heater, press the Operation Switch to put it in the "Off" position (Figure 40). The operation light will go out, and the fuel flow will stop. The burner will go out in approximately 5 minutes.
After approximately 15 minutes, the circulation fan and combustion fan will also turn off automatically.
SECTION H
RELIGHTING THE HEATER
Automatic controls prevent your heater from relighting after the Operation Button has been set to "Off"
until the heater has cooled—approximately 15 minutes.
If the Operation Switch is in the "On" position during the cooling period, the heater will automatically
relight at the end of the period as long as the room temperature is lower than the temperature setting on
the heater.
SECTION I
PROGRAMMING THE HEATER
SETTING THE CLOCK
Step 1: Activate Operation
Set the operation switch to the "On" position (see Figure 40). Although the clock will run, the timer will
not function unless the operation switch is in the "On" position.
CAUTION: SHOULD THIN WHITE STRIPES APPEAR ON THE "POWER ON" DISPLAY (SEE FIGURE
43), WAIT 10-15 SECONDS FOR BROAD WHITE STRIPES TO APPEAR BEFORE
ATTEMPTING TO SET THE TIME OR PROGRAM THE HEATER. FAILURE TO WAIT FOR
THE BROAD STRIPES MAY DAMAGE THE CLOCK.
FIG. 43
30
Step 2: Set the Time
To set the correct time push in the set knob above "Time" and turn clockwise to the proper hour and
minute, either A.M. or P.M.
MONITOR 20
PROGRAMMING FOR AUTOMATIC HEATER OPERATION
The Monitor 20 is designed to start and stop automatically at desired times during the day. To program
the heater for automatic operation, refer to Figure 43, and follow the steps below.
Step 1: Set the On Time
Push in the "Auto Cycle" Knob, and turn it counterclockwise until the desired "On" time appears in the
"Start" Display Window.
Step 2: Set the Off Time
Push in the "Auto Cycle" Knob, and turn it clockwise until the desired "Off" time appears in the "Stop"
Display Window.
NOTE: The minimum time the heater can be programmed to operate automatically is a period of 2 hours.
Step 3: Set the "Auto-Manual" Switch
Put the "Auto-Manual" Switch in the "Auto" position. When you have done this, the "Auto" light will illuminate, confirming that the heater is in the automatic operation mode.
MANUAL OPERATION
When there is no further need for automatic operation, or when you wish to override it, press the
"Manual" Button. Your heater will operate thermostatically at the setting you choose, and the clock will
continue to operate.
It is important to note that activating manual operation does NOT clear the automatic programming. To
return to automatic operation, simply press the "Auto" Button.
SECTION J
PROTECTIVE FEATURES
LOSS OF POWER - AUTOMATIC RESET
If power to the heater is interrupted, the heater will automatically shut down, and a thud-like noise may
be heard in the combustion chamber. This is normal, and should not cause alarm.
Once power is restored, your heater will automatically resume operation, but the clock must be reset
to the correct time.
NOTE: Operation will not resume after power is restored until the heater has cooled—15 to 20
minutes. During that time the Reset Light will be illuminated (see Figure 44).
Once the proper cooling has occurred, the heater will re-start automatically, and the Reset Light
will go out.
WATER IN FUEL INDICATOR
31
KEROiUN
If power has been restored and the Reset Light remains illuminated for longer than 20 minutes, refer
to "Overheat Prevention" below.
ELECTRICAL FUSE
In the unlikely event of a failure in the heater's electrical system, a fuse will "blow" and interrupt the
power.
Contact your Kero-Sun dealer for the name of a trained and certified service representative in your
area.
FUEL CONTAMINATION INDICATOR
If there is water in the fuel, a red light will illuminate and warn the user of fuel contamination (see Figure
44). If this light illuminates, follow the directions in Step 6 of Section K of the Manual.
NOTE: If separate tank is used for fueling, the "Water in Fuel" light will not illuminate.
OVERHEAT PREVENTION - MANUAL RESET
If your heater overheats, thermostatic switches will automatically stop the flow of kerosene and extinguish the flame. The Reset Light on the control panel will illuminate.
Restore heater operation by following the steps below.
Step 1: Turn the Heater Off
Put the Operation Switch in the "Off" position (see Figure 44).
Step 2: Allow the Heater to Cool
Wait approximately 30 to 45 minutes for the heater to cool completely.
Step 3: Unplug the Heater from the Wall Outlet.
32
FIG. 45
SCREWS
MONITOR 20
Step 4: Remove Obstructions
The overheated condition may be caused by obstructions blocking the air flow to the heater. Check:
• The front of the heater
• The circulation fan (on the back of the heater)
• The flue pipe and exhaust guard (outside)
Step 5: Remove the Front Cover Panel
Remove the screws at the bottom corners of the heater, and carefully lift off the front cover (Figure 45).
Remove any accumulation of dust or other matter that may be covering the burn chamber and the
heat exchangers inside the heater.
Step 6: Reset the Heater
Using a pen or pencil, press both Overheat Protector Buttons (Figure 45A)
OVERHEAT PROTECTOR B
FIG. 45A
Step
Step
Step
Step
7: Replace the Front Cover
8: Plug in the Heater
9: Re-set the Clock
10: Turn the Heater On
Put the Operation Switch in the "On" position. If the Reset Light is still on, let the heater cool for another
15 minutes and repeat Step 1 and Steps 3 through 10.
CAUTION: IF THE RESET LIGHT ILLUMINATES A THIRD TIME, TURN THE HEATER OFF, AND
CONTACT YOUR KERO-SUN DEALER FOR SERVICE.
SECTION K
CARE OF THE HEATER
PUSH OPERATION SWITCH TO "OFF." REMOVE THE AC PLUG FROM THE WALL OUTLET
AND WAIT APPROXIMATELY 30 MINUTES FOR THE HEATER TO COOL BEFORE PERFORMING ANY OF THE FOLLOWING STEPS.
33
5UW
Step 1: Retrieving Objects from Inside the Heater
Should an object fall inside the heater, through the grill openings, it must be removed to avoid affecting
the operation of the heater.
After allowing the heater to cool and unplugging the unit, remove the front cover panel. (See Step 5 of
the previous section.) After the object has been removed, replace the front cover before attempting to
re-start the heater.
*
Step 2: Cleaning the Cabinet
When the cabinet is soiled, wipe it with a damp cloth. Restore the shine with a dry cloth.
The use of abrasive household cleaners may dull the finish.
Step 3: Checking the Flue Pipe
At the beginning of each heating season, check the inside of the flue pipe. Foreign matter, spider webs,
etc. must be removed.
Be sure all fittings and joints are tight.
Step 4: Cleaning the Interior
Remove the Front Cover Panel (as described in Step 5 of the previous section), and wipe away dust or
other accumulation.
Look for signs of fuel leakage around the joint pipe and the bottom of the cabinet. If fuel is detected,
wipe it away and, if necessary, contact your Kero-Sun dealer for any necessary repairs.
Step 5: Cleaning the Blower Guard
Heating efficiency will be reduced if the blower guard is blocked with dirt or dust. Blockage also produces a rise in heat that could cause the heater to shut off.
Wipe the guard clean at least once a week (Figure 46).
A
CABINET REAR
BLOWER
GUARD
FIG. 46
34
Step 6: Siphoning Water from the Fuel Sump Tank
If the red light marked "water in fuel" illuminates, it means that water must be removed from the Fuel
Sump Tank or it will seriously affect the operation of the heater and shorten its life.
To correct the problem:
Step 6-A:
Shut off the heater.
Step 6-8:
Wait 15 minutes for the heater to cool, then unplug it.
Step 6-C:
Remove the capsule fuel tank (see Figure 47).
MONITOR 20
FIG. 47,
Step 6-D:
Remove Fuel Sump Cap A from its position on the surface of the Fuel Sump Tank (see Figure 48). Place
the straight tube of the manual siphon into the Fuel Sump Tank and place the flexible hose into a 1 quart
container (see Figure 49).
^Bfet.
N^
Step 6-E:
Squeeze the bulb vigorously 6 or 7 times, pausing to allow the bulb to expand after each squeeze.
(Once the kerosene flows, it is not necessary to squeeze the bulb.) Continue to operate the siphon until
you have succeeded in removing most of the fuel. Use a paper towel to remove any water left in the Fuel
Sump Tank.
35
KER05UN
Step 6-F:
Replace Fuel Sump Cap A into its original position. Empty the capsule tank and refill with clean
kerosene. Replace the capsule tank in the heater and follow starting instructions.
Step 7: Storing the Heater
During summer months or long periods when your heater will not be in operation, take the following
steps:
• Clean off the exterior cabinet with a damp cloth, and brush or vacuum dust from the grills.
• Remove the AC cord from the wall outlet.
• Cover the heater to protect it from dust.
• DO NOT DISASSEMBLE the heater or extension kits. Replacement of lost parts is an unnecessary
expense.
• Empty the capsule fuel tank and wash the interior with clean kerosene. Drain completely and allow
the tank to dry.
• Siphon any remaining fuel from the Fuel Sump Tank, use the same procedure as described in Step 6.
Step 8: Storing the Capsule Fuel Tank
• Remove the capsule fuel tank from the heater.
• Remove the fuel filter from the Fuel Sump Tank (see Figure 50).
Note the Fuel Sump Cap and its plug (see Figure 50). Remove them from their position on the inside of the cabinet. Press the plug into the small round fuel inlet opening at the bottom of the Fuel
Sump Tank (see Figure 51).
36
N.
MONITOR 20
• Replace the fuel filter and press the Fuel Sump Cap into the Fuel Sump Tank opening (see Figure
52). Check to see that the cap is secure.
Remove Fuel Sump Cap A from its position on the surface of the Fuel Sump Tank (see Figure 53).
Place Fuel Sump Cap A towards the rear of the cabinet, on the surface of the Fuel Sump Tank (see
Figure 54).
37
KEROSUN
• Turn the capsule fuel tank around 180 degrees. Place the capsule fuel tank in the heater with the
arrow pointing towards the back of the heater (see Figure 55) so that the fuel cap fits into the opening created by removing Fuel Sump Cap A.
• Close the fuel tank cover.
Step 9: Disengaging the Fuel Selector
During normal use with the capsule fuel tank, the arrow on the tank selector at the lower right hand side
of the cabinet points to the left towards the "capsule" position (see Figure 56). When storing the heater,
be sure that the arrow on the tank selector points straight up, towards the "STOP" position.
Step 10: Cover the Heater to Protect it from Dust
CAPSULE
TANK
POSITION
38
FIG. 56
ARROW
MONITOR 20(
SECTION L
TROUBLESHOOTING GUIDE
Should symptoms appear during the operation of your heater, refer to the chart below. If you are unable
to restore normal operation, contact your Kero-Sun dealer for service.
SYMPTOM
CAUSE
REMEDY
Heater does not go on with
operation switch.
Timer is in Auto
Switch to manual.
AC cord is disconnected from
wall outlet. Power failure.
Out of fuel.
Check plug and power source.
Water in fuel.
Fuel Selector on wrong tank.
Capsule tank incorrectly installed.
Heater extinguishes after
lighting.
Air pocket in fuel line.
Out of fuel.
Reset light is on.
Lift the fuel set lever at the lower
right hand side of the front panel.
Check "Empty" light. If illuminated, refuel heater.
If separate tank is used, "Empty"
light does not operate.
Check "Water in Fuel" light. If illuminated, drain tank. Refill with
fresh kerosene.
Set to correct position.
Check tank, turn around, if
necessary.
Lift fuel set lever on lower right
front of heater and release slowly
4 or 5 times.
Check "Empty" light. If illuminated, refuel heater.
See "Loss of Power" and "Overheat Prevention," Section J.
Operation lights will not extinguish
and blower will not stop when
operation button is put in "Off"
position.
Heater has run out of fuel during
operation.
Press button marked "Push When
Empty." Refuel according to directions under "Refueling," Section D.
Changes in room temperature.
(Slight differences in room
temperature are normal.)
Poor location of heat sensor.
Relocate sensor if changes are
uncomfortable.
Automatic timer does not start
heater.
Timer is in "Manual."
Timer improperly programmed.
Switch to "Auto."
See "Programming for Automatic
Operation," Section I.
See "Loss of Power," Section J.
See "Loss of Power" and
"Overheat Prevention," Section J.
Power interruption.
Reset light is on.
Flame does not reach normal size
Air bubbles in fuel controller.
Heater is not level.
Poor flame, sounds of combustion, soot at rear of the heater.
Loose flue pipe.
Heater not level.
Soot on inside of burner window
or exhaust ports of flue pipe.
Obstruction of combustion air
intake system or combustion fan
failure.
Slowly move temperature selector
several times between the lowest
and the highest positions.
Check level guide; adjust legs, if
necessary.
Allow heater to cool completely;
tighten all connections.
Adjust legs.
Inspect air intake system and air
supply elbow for blockage. Clean
with a brush, if necessary, and
carefully reconnect.
39
0)
•
MONITOR 20
1. FLUE PIPE-057012
2. SLEEVE - 057009
3. PLASTIC SYRINGE
4. RUBBER PACKING - 057011
5. OUTER FLANGE - 057010
6. SLEEVE NUT - 057212
7. EXHAUST GUARD-057017
8. JOINT PIPE WITH
CLOTH INSULATED
COVER - 057004
9. PIPE HOLDER - 057006
10. HOSE BAND-057008
11. AIR DAMPERS-057003
13. SCREWS
14. SENSOR-057103
12. WALL CLAMPS - 057005
15. TEMPLATE-059002
16. SPILL TRAY-059001
17. MANUAL SIPHON - 000909
41
KERO5UM*
42
MONITOR 20®
MONITOR 20® KEROSENE HEATER LIMITED WARRANTY
KERO-SUN, INC. warrants each MONITOR 20® kerosene heater sold by it to be free from defects in
material and workmanship, under normal use and service, for one year after the date of original retail purchase, subject to the terms and conditions stated below:
1. WARRANTOR: This Warranty is granted by KERO-SUN, INC., Kent, Connecticut 06757.
2. PARTIES TO WHOM WARRANTY IS EXTENDED: This Warranty shall be extended only to the original retail purchaser.
3. PARTS COVERED: All products and parts manufactured by or for KERO-SUN, INC., except as provided for herein. Replacement parts are warranted only for the balance of the original warranty period.
4. PARTS NOT COVERED: The following parts are not covered by this Warranty: fuel filters, venting kits,
extension kits.
5. REMEDY: If, within the applicable warranty period, any product or part included in this Warranty
proves to be defective in material and/or workmanship, then KERO-SUN, INC. shall repair or replace, at
its option, the defective product or part. Service at the point of installation (not including dealer travel
time) will be provided at no charge to the consumer, but must be performed by a KERO-SUN, INC.
dealer authorized to sell and service the MONITOR 20® kerosene heater.
6. PROCEDURE FOR OBTAINING PERFORMANCE UNDER THIS WARRANTY: In order to obtain performance of the obligations under this Warranty, the original purchaser must promptly (in no event later
than thirty (30) days after discovery of the defect) notify the local Kero-Sun dealer authorized to sell and
service the MONITOR 20® kerosene heater. Service will be provided during normal business hours
within a reasonable time after the dealer has been notified of the need for service. If you are unable to
locate a local KERO-SUN dealer authorized to sell and service the MONITOR 20®. kerosene heater, call
or write to: Service Department, Kero-Sun, Inc., Kent, Connecticut 06757, (203) 927-4611.
ANY CLAIM MADE UNDER THIS WARRANTY MUST BE ACCOMPANIED BY PROOF OF ORIGINAL
PURCHASE DATE—SALES INVOICE OR CANCELLED CHECK IS SATISFACTORY EVIDENCE.
7. SOLE REMEDY: The remedy and liability for any breach of warranty, express or implied, set forth
above is the sole and exclusive remedy and the limit of liability for any such breach.
8. DESIGN CHANGES: KERO-SUN, INC. reserves the right to make changes in the design or material of
the heater without incurring any obligations to incorporate such changes in any product previously manufactured or advertised.
9. EXCLUSIONS AND IMPLIED WARRANTIES: This Warranty does not extend to any defect due to the
negligence of others, failure to install, operate or maintain the heater in accordance with the installation,
operating and maintenance instructions furnished with each new heater, unreasonable use, accidents,
alterations, ordinary wear and tear, the use of unauthorized or non-standardized parts or accessories or
tiie use of any fuel other than good quality kerosene. ALL IMPLIED WARRANTIES, IF ANY, ARISING
UNDER STATE LAW IN CONNECTION WITH THE SALE BY KERO-SUN, INC. OF ANY NEW HEATER
ARE LIMITED IN DURATION TO THE DURATION OF THIS WRITTEN WARRANTY. THERE ARE NO
WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY, FITNESS OR OTHERWISE WHICH
EXTEND BEYOND THIS WARRANTY. KERO-SUN, INC. SHALL NOT BE RESPONSIBLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER AS A RESULT OF BREACH OF WARRANTY, NEGLIGENCE, STRICT LIABILITY IN TORT, OR OTHERWISE.
NOTE: SOME STATES DO NOT ALLOW: (a) LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY
LASTS; OR (b) THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,
SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.
10. NO VARIATION OF TERMS: No person has the authority to orally, in writing, or in any other way vary
the terms, conditions or exclusions, of this Warranty or to make any express warranties other than those
contained herein.
11. LEGAL RIGHTS: This Warranty gives you specific legal rights and you may also have other rights
which vary from state to state.
43