M21 Owner s Manual
TM
MONITOR 21
Heating System
Owner's Guide
M O N I T O R
P R O D U C T S
I N C
For Quick Reference
SECTION A: Specifications
Special Features
Safety Festures
SECTION B: Tools Needed for Heater Installation
Accessories You May Need
Window Installation
Flue Pipe Extensions
SECTION C: Heater Installation
Flue Pipe Clearances
SECTION D: Fueling
Refueling
Fueling Options Available
External Tank Installation
Empty Fuel Tank
SECTION E: Starting Instructions
SECTION F : Adjusting Room Temperature
SECTION G:Turning Off the Heater
SECTION H: Relighting the Heater
SECTION I : Programming the Heater
Setting the Clock
Programming for Automatic Heater Operation
Manual Operation
SECTION J : Protective Features
Loss of Power — Automatic Reset
Electrical Fuse
Overheat Prevention
SECTION K:Care of the Heater
SECTION L : Troubleshooting Guide
•
•
•
COPYRIGHT © MONITOR PRODUCTS, INC.,
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SECTION A
SPECIFICATIONS
Model
Fuel Type
Heater Efficiency
Heat Rating
Heater Output
Fuel Tank
Fuel Consumption
Power Source
Power Consumption
Heated Air Delivery
Vent Pipe Hole
Dimensions
Weight
Monitor 21
Crystal Clear Kerosene
93%
High: 22,000 BTU/hour
H.Medium: 17,400 BTU/hour
LMedium: 11,700 BTU/hour
Low: 9,600 BTU/hour
High: 20,400 BTU/hour
H.Medium16,200 BTU/hour
L Medium: 10,900 BTU/hour
Low: 8,900 BTU/hour
1.32 Gallons; Separate tank optional
High: 0.164 Gallon/hour
H.Medium: 0.13 Gallon/hour
L.Medium: 0.09 Gallon/hour
Low: 0.07 Gallon/hour
120 Volts AC; 60 Hz
Ignition: 250 Watts
Operation: 55 Watts (Average)
High: 176 Cubic feet/minute
H.Medium: 176 Cubic feet/minute
L.Medium: 113 Cubic feet/minute
Low: 113 Cubic feet/minute
2%-inches Diameter
Height: 25.6 inches
Width: 20.9 inches
Depth: 12.4 inches
55 Pounds, empty
* When considering heat of condensation is lost then net efficiency is 87%.
SPECIAL FEATURES
AUTOMATIC IGNITION
DUAL BLOWERS: Separate fans for combustion and
room air circulation.
THERMOSTATICALLY CONTROLLED: Adjusts to the
desired room temperature.
BUILT-IN TIMER: Heater will automatically operate as
programmed by the user.
INDICATOR LIGHT: 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.
AUTOMATIC RESET AFTER POWER FAILURE: Heater
will automatically resume operation (in manual
mode) after power is restored.
CHOICE OF FUEL SUPPLY: Built-in capsule tank or
connect to separate tank.
MULTIPLE HEAT EXCHANGER: Extracts 93% 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 untill 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-withina-pipe venting system. This process preheats
combustion air and regains heat from exhaust
gases.
MONITOR 21
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 21 Heating System.
STANDARD TOOLS
APPLICATION
Phillips Head Screwdriver
Steel Tape Measure
Pen or Pencil
Exterior Caulk
Yardstick or Long Straight Edge
Soapy Water
Taking Measurements
Marking Drilling Location
Caulking Between Packing and Wall
Checking Angle of Hole for Flue Pipe
Lubricating Sleeve Hardware
SPECIAL TOOLS
APPLICATION
Electric Drill
Accommodating Hole Saw and Drill Bit
Cutting Hole for Flue Pipe
Drilling Pilot Hole Through Wall
Installation of Heater Parts
2% inch Hole Saw Attachment
Long Kiinch Drill Bit
Level
Checking Angle of Hole for Flue Pipe and for checking
heater level
Fig. 1
V
ACCESSORIES YOU MAY NEED
Check the list below and see your MPI dealer for accessories you may need or want for installation of your
heating system.
APPLICATION
ACCESSORY
8206
8005
8201
1100
1101
Window Installation Kit
P/N 8208, 8209
(See Window Installation below)
Extra Short, Short, Medium or
Long Extension Kit or Elbow Adapter Kit
(See Flue Pipe Extensions, page 7)
Fitting and Tank
Medium Fleu Pipe
Long Flue Pipe
Wall Mounted Fuel Tank
Electric Suction Pump
P/N
P/N
P/N
P/N
For use where wall thickness is up to 14% inches
For use where wall thickness is up to 20 inches
For small capacity, gravity fed outside fuel supply.
For use with large capacity tank where gravity feed is
not practical
For use where "through-the-window" flue pipe installation is desired
For use where "standard" installation is not practical
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 4 (Extra short, 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 2) and refer to the chart
below.
Fig. 2
IF THE MEASURMENT IS:
YOU NEED:
20% to 25 inches
25 to 33% inches
33y5 to 51% inches
51% to 86% inches
Extra Short Extension Kit
Short Extension Kit
Medium Extension Kit
Long Extension Kit
Elbow Adapter Kit
P/N 8212
P/N 8204
P/N 8203
P/N 8202
P/N 8213
NOTE: Window kit installation is prohibited when the window is required to meet the local building code requirements for ventilation, emergency escape, or rescue.
One or more Elbow Adapter Kit may be needed if heater is installed on inside wall.
MPi
MONITOR 21
FLUE PIPE EXTENSIONS
Four standard extension kits are available from your
Monitor 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.
Exhaust Elbow
Air Supply Hose
90° Joint
Flue Pipe
Fig. 3
1
2. Neither the air intake pipe nor the exhaust pipe
may have more than 3 elbows, counting the elbows
at the heater. The air supply Hose, and the integral
bends in the flue pipe are not counted as elbows
(See Figure 3).
3. The correct air damper as shown on page 13 must
be used.
o Do not count
SECTION C
HEATER INSTALLATION
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 Nut
Spill Tray
Sensor (attached to the rear of the heater)
Cardboard Template
"S" Damper
Wall Clamps (2)
Rubber Packing
Joint Pipe
Cloth Insulation Cover
Outer Flange
Pipe Holder
Small Bag of Screws
Tapping, Type A-#8xK
Tapping, Type A-#8x%
Small Plastic Syringe
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 5.
Fig. 5
For securing
sleeve and
wall clamps
For securing
wall clamps
Tapping
Tapping
SIZE
Fig. 4
• 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 6 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.
NOTE: Use the cardboard template provided with your
heater for flue pipe location.
8
MPI
MONITOR 21
TM
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.
Frontal Clearance
u
Combustible IIIHIIIHIHII |i u i iiiiiiiiiiiiiiiiiiiiiii
+ — Wall
24" (60cm)
or more
Any construction
|
above Flue Pipe
\
must not come
within 24" (60cm) _» |
of front
obstacle
5i/»
5K" _
(13.5cm)
(14
cm)
«—
Jr ca 3ft
Body "
;gr
Clamp
5k
vSj
* or -If
more
24" (60cm)
or more
> |
1 Front Obstacle
-
or more
Heater
I
i
Ground or slab surface
Overhead Clearance
Non-combustible
Hnrrihi istihlfi -^ iilmiiiini iiiiiiiiiimiiiiimuiiiilli
•4-
24" (60cm)
or more
— Wall
Combustible
111 [I II 111 II [1111 III 11 IN llllll Mil l!ll|NI!lllll!llll!lll!ll((|lll
/
5%" —>
(laScm)
Body-—" ( is) 3k
Clamp
gjf
sfl
j
Heater
Jr
24" (60cm)
» .iilr
or more
iiiiiiiiiiiiiiiiiiiiiii
/
t
45° /
12
—V/
" (30cm)
//
or more
X
i
=:H
~ Flue Pipe
Ground or slab surface
Side Clearance
Side obstacle
Body
Clamp
Ililllllllllllllllllllll I Mlllllllllllllllllllllll
T
\
18" (45cm)
or more
•SE
^]
|=
Heater --
-
1
Flue Pipe
4-
Wall
Fig. 6
9
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 7). Be sure the hole
extends through the outside wall.
Step 4: Drill a Pilot Hole
NOTE: The following directions apply to "standard"
installation. For other methods, follow instruction
included with accessory kits.
For walls up to 8/i inches thick, use a short
flue pipe; for walls up to 14% inches thick, use
a medium flue pipe; and for walls up to 20 inches
thick, use a long flue pipe.
Position of hole-
-Template
Fig. 7
CAUTION: The opening on the inside wall should be approximately Yz 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% inch diameter hole through the inner and outer
walls (Figue 8).
Wall
Fig. 8
After the hole is cut, use a straight edge and a level
to be sure the inside opening is approximately ><?inch
higher than the outside opening.
10
MONITOR 21
Step 6: Install the Flue Pipe
From INSIDE the building, insert the flue pipe (with
arrow pointing "up") into the hole. Fasten the flue pipe
with the 3 #8xMapping screws(Figure 9). (See Figure
4 for screw size and application.)
tapping screw
Fig. 9
Step 7: Install the Outer Flange
Apply caulking material to the inside ridge of the
rubber packing (Figure 10).
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.
Once the rubber packing is in place, slide the outer
flange onto the sleeve with the conical side pointing
outward (Figure 11).
Screw the flue pipe nut onto the flue pipe grooves,
and tighten it firmly (Figure 11).
Rubber Packing
Fig. 10
Flue Pipe Nut.
Outer Flange
Fig. 11
11
12).
Position the heater on the spill tray so the legs of the
cabinet fit into the circular indentations in the spill
tray (Figure 12).
Step 8: Install the Spill Tray
Place the spill tray on the floor where you plan to
locate your heater.
Remove the 2 sets of screws from the cabinet (Figure
Retainers
Legs
Spill Tray
Fig. 12
Attach and tighten both sets of retainers and screws.
Step 9: Level the cabinet
In order for heater to operate properly, it must be
positioned on a level surface. Ensure proper leveling
by using a carpenters level to check both side to side,
and front to back level condition.
Step 10: Install the Joint Pipe
At the rear of the heater, slide the large end opening
of the joint pipe into the exhaust port outlet of the
heater. Be sure the joint pipe is fully seated. Slide the
fabric cover over the joint pipe (Figure 13).
Fabric Cover
Joint Pipe
Fig. 13
12
Step 11: 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 (Figure 14).
Be sure the joint pipe is completely inserted into the
flue pipe.
MPI
MONITOR 21
Step 12: Install the Air Damper
If installation is standard (that is, no extension kits
are required), place the air damper marked with an "S"
over the air intake flange on the flue pipe (Figure 15).
Place the hose band around the end of the air supply
Hose. Push the air supply Hose onto the air intake
flange and secure the Hose with the hose band.
Step 13: 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 16).
Flue Pipe Holder
Air Supply Hose
Fig. 16
Fig. 15
NOTE: If an extension kit is required for the installation,
use the correct damper as follows:
Up to 3 elbows with Extra Short Extension Kit
"S" Damper
Up to 3 elbows with Short Extension Kit
"S" Damper
Up to 3 elbows with Medium Extension Kit
Unused
Up to 3 elbows with Long Extension Kit
Unused
Step 14: Secure the Heater
Insert the narrow ends of the 2 wall clamps into sockets
on the rear of the heater.
Loosen the adjustment screws and extend the clamps
until they touch the wall. Fasten the clamps to the
wall with 2 #8x%tapping screws.
Step 15: Recheck the Heater
Before proceeding, check again to be sure there are
no flammable materials close to the heater. Check to
be sure the heater is level.
Examine the flue pipe to be sure connections are tight.
13
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 SERVERE INJURY.
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 17). Turn the tank
up-side down, and remove the fuel cap. If the fuel cap
is difficult to unscrew, press the valve in the center,
and remove.
"FULL" Fuel Level
Fig. 18
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 19).
Fig. 17
Step 2: Using a Siphon
A siphon is not included with your Monitor 21. You
may obtain one from your Monitor dealer.
To operate a siphon, insert the straight tube into the
kerosene container. Insert the siphon's flexible hose
into the capsule fuel tank (see Figure 18).
Watch the fuel gauge on the capsule tank closely.
As the fuel begins to near the full level (see Figure 18),
stop the flow by turning the vent knob on top of the
siphon counter-clockwise. Remove the siphon slowly
to allow excess kerosene to drain back into the
container.
Fig. 19
14
44PI
MONITOR 21
REFUELING
EXTERNAL TANK INSTALLATION-Gravity Fed
NOTE: When the red light marked "Empty" illuminates
and flashes, a buzzer will sound for twenty
seconds. The burner mode is changed to "Low"
automatically, and then, the heater will shut off
after 30 minutes.
The remaining burning time is indicated at the
display window.
When using external tank, changes in heater installation
and pipe connections are required.
PREPARATION AT HEATER
Stepl:
Remove the capsule fuel tank, and the fuel filter from
the fuel sump tank (see Figure 20).
30 min
20 sec
•Burner shuts off.
Fuel Filter
Buzzer sounds
Red light flashes.
•Burner mode change to "Low"
Fuel Sump Tank
Stepl:
When the red light marked "Empty" illuminates and
flashes, buzzer sounds, press the Operation Switch
to put :'-. 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
Fig. 20
In addition to the standard capsule tank, the following
fueling options are available for use with your Monitor
21.
1. Wall Mounted Fuel Tank: For small fueling needs.
This system, available from your MPI 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.
When using a gravity fed tank or pumping system to
supply fuel, the inlet pressure to the heater must not
exceed 2.5 psi.
NOTE: When using a separate fuel tank with your
Monitor 21, the "Empty" light will NOT signal an
empty tank. Watch the gauge on the tank to
avoid running out of fuel.
15
Remove fuel with the siphon, remaining fuel must be sucked up with the plastic syringe (see Figure 21).
Fuel Sump Tank
Plastic Syringe
Fig. 21
Step 3:
Wipe off the fuel sump tank with a towel or rag (see
Figure 22).
Step 4:
Remove the nut at the rear lower side of the heater.
Collect fuel draining from the heater into a container.
Hold the nipple with a wrench and loosen the nut with
the other wrench (see Figure 23).
Wrench
Fig. 22
Nut
Fig. 23
16
Container
MPI
MONITOR 21
Step 5:
Insert the rubber plug into the disconnected pipe (see
Figure 24).
Wipe off spilled fuel.
Rubber Plug
Bend the pipe aside
Fig. 24
Step 6:
Remove the screws at the louver, and carefully remove
the louver and front panel (see Figure 25).
Louver
Front Panel
Fig. 25
Step 7: Connect the plugs of red and brown wires marking "U" coming out from the printed wiring board for
turning off the function of the fuel empty float switch (see Figure 26).
Printed Wiring Board
Lead Wires
Color : Red/Brown
Marking : "U"
Fig. 26
17
Step 8: Replace the front panel and the louver.
Step 9: Connect the fuel line from External Tank as follows.
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 27
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
8 Meet 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.
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.
When using a gravity fed tank to supply fuel, the inlet
pressure to the heater must not exceed 2.5 psi.
Outdoor Fuel Tank
Shut-off Valve
Fusible Link
Valve Connection
Fig. 27
EMPTY FUEL TANK
If at any time during the operation of your heater you
find.
• Burner Status indicators are blinking.
• No heat
• No flame
You can assume you. are out of fuel.
Should this situation occur, take the following steps.
18
Step 1: Turn the Heater Off
Press the Operation Button to put it in the "Off" position.
Step 2: Refuel
Refill your fuel tank with kerosene.
Step 3: Turn the Heater On
Press the Operation Button to put it in the "On" position.
,_.
4/IPI
MONITOR 21
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, press the fuel
set lever at the lower right hand side of the cabinet
and release it slowly 4 or 5 times (Figure 28).
Step 3: Set "ON" Button
Depress the operation button to put it in the "ON"
position.
The "Operation lamp" lights indicating "Set room
temperature" and "Present room temperature". Burner
status lamps will light and ignition will start after
approximately three minutes. In 5 to 10 minutes the
circulation fan will start to operate, and warm air will
be felt coming through the cabinet grill.
Fuel Set Lever
Fig. 28
RUN
AUTO
EMPTY
BURNER STATUS
LOW
OPERATION
ON/OFF
AUTO
HIGH
TIMER SELECTOR
CLOCK CLOCK
/TEMP SET 1st 2nd 3rd 4th
ROOM
SET
TEMP
AM
PM
11! - h fl
TIME/TEMP SET
HOUR MINUTE SET CLEAR
UP
DOWN
Fig. 29
19
SECTION F
ADJUSTING ROOM TEMPERATURE
Press either the "UP" or "DOWN" button to set the
digital set room temperature indicator to the desired
temperature, and then press the "SET" button. After
the room temperture 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.
Depending on the output required to maintain the
desired room temperature, the indicator lights will
illuminate in the following pattern:
BURNER MODE
LIGHT PATTERN
High
H.Medium
L Medium
Low
8 indicators — On
6 indicators — On
4 indicators — On
2 indicators — On
No lights on
Off
* The heater will shut itself off temporarily when the desired room temperature has been reached and restart automatically when
necessary to maintain room temperature.
SECTION G
SECTION H
TURNING OFF THE HEATER
RELIGHTING THE HEATER
To turn off the heater, press the Operation Button to
put it in the "Off" position (Figure 29). The operationlight will go out, and the fuel flow will stop.
Automatic controls prevent your heater from relighting
after the Operation Button has been set to "Off" until
the heater has cooled.
If the Operation Button is put in the "On" position
during the cooling period, the heater will automatically
relight at the end of the period.
20
TM
MONITOR 21
SECTION I
PROGRAMMING THE HEATER
SETTING THE CLOCK
Step 1: Set the Timer Selector
Move the Timer Selector Knob to the "Clock Set" position.
88 : 88 at this point.
The LED indicator in the Display Window will show
DISPLAY WINDOW
RUN
AUTO
EMPTY
LOW
ROOM
SET
BURNER STATUS
TEMP
AM
PM
HIGH
n /" • Q O
D O • O '_'
TIMER SERECTOR
OPERATION
ON/OFF
\TIMER SELECTOR
CLOCK\ CLOCK
AUTO /TEMP \ S E T 1 s t 2nd 3rd 4th
TIME/TEMP SET
TIME
jj
TEMP |l
l|
HOUR MINUTE SET CLEAR
UP
DOWN
OPERATION BUTTON
Fig. 30
Step 2: Set the Hour
Press the "Hour" Button until the correct hour (either
A.M. or P.M.) appears in the window.
Step 3: Set the Minute
Press the "Minute" Button until the correct
appears in the window.
Immediately press the "Set" Button.
Step 4: Display the Current Time
To display the current time, move the Timer Selector
Knob to the "CLOCK/TEMP" position.
time
NOTE: If the "Set" Button is not pressed within 1 minute
after the time is set, the programming will be
cancelled.
I
21
PROGRAMMING FOR AUTOMATIC HEATER OPERATION
The monitor 21 Heating System is designed to provide
up to 4 times Time/Temperature programming a day.
To program the heater for automatic operation, refer
to Figure 30 and follow the steps below.
Step 1: Set the 1 st Time/Temperature
Move the Timer Selector Knob to the "1st" position.
Press the TIME Button. Set the 1st desired time by
pressing the HOUR and MINUTE Buttons as described
under "Setting the Clock".
NOTE: Be sure to set the time correctly for either A.M.
or P.M.
Press the "SET" Button.
Press the "TEMP" Button.
Set the 1st desired temperature by pressing
the UP and DOWN Buttons.
Press the "SET" Button.
Step 2: Program the Remaining Times
With the Timer Selector Knob in the appropriate
positions, program the 2nd, 3rd, 4th times as described
above. Be sure to press the Set Button after each
time is programmed.
Step 3: Activate Automatic Operation
To operate your heater automatically, press the "Auto"
Button on the control panel. When you have done this,
the "Auto" light will illuminate, confirming that the
heater is in the automatic operation mode.
Step 4: Clearing an Automatic Setting
Should it become necessary to clear an automatic
setting, slide the Timer Selector Knob to the appropriate position and press the "Clear" Button.
MANUAL OPERATION
When there is no further need for automatic operation,
or when you wish to override it, press the "AUTO"
Button again. 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.
t
22
MONITOR 21
SECTION J
PROTECTIVE FEATURES
LOSS OF POWER-AUTOMATIC RESET
NOTE: If power to the heater is interrupted, 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 resume
operation in the MANUAL mode and maintain
room temperature according to the initial setting
temperature (72°F). The Display Window will
show 88 '. 88 indicating the need to reset the
clock and re-program the heater for automatic
operation.
Step 5: Remove the Louver
Remove the screws at the louver, and carefully remove
the louver (Figure 31).
Louver
ELECTRICAL FUSE
In the unlikely event of a failure in the heater's electrical system, a fuse will "blow" and interrupt the power.
Do not attempt to change the fuse.
Contact your MPI dealer for the name of a trained and
certified service representative in your area.
Fig. 31
OVERHEAT PREVENTION
If your heater overheats, a thermostatic switch will
automatically stop the flow of kerosene and extinguish
the flame. The burner status indicators are blinking.
Restore heater operation by following the steps below.
Step 1: Turn the Heater Off
Press the Operation Button to put it in the "Off" position.
Step 2: Allow the Heater to Cool
Wait bpproximately 30 to 45 minutes for the heater to
cool completely.
Remove any accumulation of dust or other matter that
may be covering the burn chamber and the heat
exchangers inside the heater.
Step 6: Replace the Louver.
Step 7: Plug in the Heater
Step 8: Re-program the Heater
Step 9: Turn Heater On
CAUTION: If the unit overheats a second time, turn
it off and contact your MPI dealer for service.
Step 3: Uuplug the Heater from the Wall Outlet.
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 (outside)
i
23
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.
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, 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 MPI dealer for
any necessary repairs.
Step 5: Cleaning the Blower Guard
Heating efficiency will be reduced if the blower guard
at rear of the cabinet 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.
24
Step 6: Cleaning the Fuel Strainer
The strainer of the fuel constant level valve should be
cleaned once a year and before storing heater at the
end of each season.
Step 6-A:
Turn knob of the shut-off valve installed at the fuel
inlet connection to close the fuel line. (See Figure 27).
Step 6-8:
To catch the fuel which will drain out, set the drain
guide made by cardboard below the strainer cover,
with a small container under it. (See Figure 32).
Step 6 C:
Loosen the two screws from the strainer cover and
remove.
Step 6-D:
Remove the strainer and wash with pure kerosene.
Step 6-E:
Return the strainer to its original position. Replace
strainer cover and screw to secure.
Step 6-F:
Wipe away any spilled kerosene.
Step 6-G:
Turn the knob of the shut-off valve to open. Check for
kerosene leakage.
MPI
MONITOR 21
Drain Guide
Container
Fig. 32
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.
25
SECTION L
_
TROUBLESHOOTING GUIDE
Should symptoms appear during the operation of your heater, refer to the chart below,
restore normal operation, contact your MPI dealer for service.
If you are unable to
SYMPTOM
CAUSE
REMEDY
Heater does not go on with
operation switch.
Timer is in Auto
Press Auto Button again.
AC cord is disconnected from
wall outlet. Power failure.
Check plug and power source.
Out of fuel.
Press the fuel set lever at the
lower right hand side of the
cabinet. Check "Empty" light.
If illuminated, refuel heater.
If separate tank is used "Empty"
light does not operate.
Water in fuel
Clogged fuel strainer
Refill with fresh kerosene.
Clean fuel strainer.
See "Care of the heater" Section K
Capsule tank incorrectly installed.
Check tank, turn around, if
necessary.
Air pocket in fuel line.
Press fuel set lever on lower right
band side of the cabinet and
release slowly 4 or 5 times
Out of fuel.
Check "Empty" light. If illuminated
refuel heater
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.
Press Auto Button.
Timer improperly programmed.
See "Programming for Automatic
Operation, "Section I".
Power interruption.
See "Loss of Power", section J
Air bubbles in fuel controller.
Slowly move temperature selector
several times between the lowest
and the highest positions.
Heater is not level.
Check level.
Poor flame, sounds of combustion,
soot at the rear of the heater.
Loose flue pipe.
Allow heater to cool completely;
tighten all connections.
Soot on inside of burner
window or exhaust ports of
flue pipe.
Obstruction of combustion air
intake system or combustion
fan failure.
Inspect air intake system and air
supply elbow for blockage. Clean
with a brush, if necessary, and
carefully reconnect.
Heater switches from automatic to manual operation;
display window shows 88 : 88
Power interruption;automatic
reset
See "Loss of Power",
Section J.
Heater extiguishes after lighting
Flame does not reach normal size.
MEMO
27
^Monitor 21™ Vented Heating Systems Limited Warranty-^
MONITOR PRODUCTS, INC., warrants each
MONITOR 21 vented heating system 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
term and conditions stated below.
1. WARRANTOR :This warranty is granted by
MONITOR PRODUCTS, INC., P.O. Box 3408,
Princeton, New Jersey 08543.
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 MONITOR PRODUCTS,
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, fuses.
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 MONITOR PRODUCTS, 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 customer, but must be
performed by a MONITOR PRODUCTS, INC.,
dealer authorized to sell and service the
MONITOR 21 vented heating system.
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 CHANGE: MONITOR PRODUCTS, 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, OPERATION 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 THE USE OF ANY FUEL
OTHER THAN GOOD QUALITY KEROSENE
SUCH AS 1K GRADE. ALL IMPLIED WARRANTIES, IF ANY, ARISING UNDER STATE LAW IN
CONNECTION WITH THE SALES BY MONITOR
PRODUCTS, 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 FOR A PARTICULAR PURPOSE OR OTHERWISE WHICH
EXTEND BEYOND THIS WARRANTY MONITOR
PRODUCTS, 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.
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 MONITOR
PRODUCTS, INC., dealer authorized to sell and
service the MONITOR 21 vented heating system.
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 MONITOR
PRODUCTS, INC., dealer authorized to sell and
service the MONITOR 21. vented heating system,
call or write to: SERVICE DEPARTMENT,
MONITOR PRODUCTS, INC., P.O. BOX 3408,
PRINCETION, NEW JERSEY 08543, 201-3290900.
11. LEGAL RIGHTS: This warranty gives you specific
legal rights and you may also have other rights
which vary from state to state.
Any claim made under this warranty must be
accompanied by proof of original purchase date
sales invoice or cancelled check showing
serial number is satisfactory evidence.
MONITOR PRODUCTS, INC.
P.O. BOX 3408
PRINCETON, N.J. 08543
PART NO.1143 PRINTED IN JAPAN
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.
COPYRIGHT © 1987 MONITOR PRODUCTS, INC.,
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