Dynablast BEF series User manual
O P E R ATO R ' S M A N UA L
HOT WATER PRESSURE WASHERS
SERIES
Dynablast Inc.
2625 Meadowpine Blvd.
Mississauga, Ontario L5N 7K5, Canada
1-877-52BLAST (25278) www.dynablast.com
MAN-BEF
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BEF
TABLE OF CONTENTS
PAGE
SAFETY INSTRUCTIONS 1
SETTING UP 2 - 3
OPERATION 3 - 4
SAFETY COMPONENTS 4
WASHING TECHNIQUES WITH FLOAT BOX AND SOAP INDUCTION UNIT 5
THINGS TO CHECK REGULARLY 5
WINTERIZING YOUR PRESSURE WASHER
SERVICE AND MAINTENANCE
ANNUAL BURNER SERVICE 7
INDOOR INSTALLATION 8
SPECIFICATIONS AND FEATURES 9
TROUBLESHOOTING 10 - 11
ELECTRICAL SCHEMATICS 12 - 13
WARRANTY POLICY 14
PUMP WARRANTY POLICY 15
BEF SERIES
SAFETY INSTRUCTIONS
1. Read all safety and operating instructions efore using the unit.
2. Read all electrical hook up instructions.
3. Read warnings on additive containers.
4. DO NOT CHANGE NOZZLE size. The incorrect nozzle could cause excessive pressure
resulting in pump damage and possi le personal injury. Refer to parts list for correct
nozzle size.
5. The water discharge from this pressure cleaner is under extremely high pressure. DO
NOT point it where damage or injury could result. E.g. Eyes, Skin, People, Animals.
6. DO NOT point gun toward an electrical outlet as you risk severe shock and personal
injury.
7. Look for loose couplings or damage to high-pressure hose. These areas may indicate
possi le rupture points.
8. Read WARNINGS on additive containers.
9. BE CAREFUL OF SLIPPERY FLOORS. Some additives make a normally safe area
extremely slippery and dangerous.
10. KEEP CHILDREN AWAY from the machine and wash area.
11. VENTILATE work area when using toxic or pungent additives to reduce your exposure to
the noxious fumes.
12. Use PROTECTIVE WEAR, especially for the eyes and skin.
13. Whenever you stop spraying, always engage the safety latch on the trigger gun.
14. Whenever changing nozzles, always turn the electric motor off and always relieve the
pressure y triggering the gun. Always engage the safety latch on the trigger gun.
Always change the nozzle with the gun and wand pointed away from you, and never
pointed at any person or animal.
15. DO NOT use gasoline, crankcase drainings or oil containing gasoline or solvents.
16. Exhaust fumes are poisonous. Never run the unit in an enclosed area or inside a uilding
UNLESS your machine has een properly vented in accordance with local regulating
authorities and/or CSA standard B139.
WARNING Risk of injection or severe injury. Keep clear of nozzle. Do not direct
discharge stream at persons. This equipment is to be used only by trained
operators.
1
BEF SERIES
SETTING UP
If you find any damage due to shipping when unpacking the machine, contact your dealer.
ELECTRICAL SUPPLY
rrange with an electrician to install a properly grounded, three-wire receptacle. To protect the receptacle from
splashes, the recommended height above the ground level is a minimum of four feet. For safest operation, a
ground fault interrupter (GFI) outlet should be installed.
-DO NOT CHANGE THE AC PLUG ON THE PRESSURE CLEANER TO A DIFFERENT TYPE.
-DO NOT CUT OFF THE GROUND PIN OR THE OPERATOR WILL BE EXPOSE EXPOSED TO
SEVERE SHOCK.
-KEEP ELECTRICAL CORDS AND CONNECTIONS DRY AT ALL TIMES.
Make sure the supply voltage is correct. The voltage is shown on the rating plate on the front of the machine.
WATER SUPPLY
Connect a garden hose to the water inlet. The water supply must be able to deliver a 5 to 8 gallon per minutes at
a minimum pressure of 5 psi, at the flow rates given in the previous chart. (see specifications)
PUMP - OIL
Check the oil level. The oil should be level with the dot on the sight gauge. Use #20 or #30W non-detergent
heavy-duty oil. You can also use the dipstick part of the cap to check the oil level. lso ensure that the vent hole
in the cap/dipstick is clear of dirt.
BURNER - FUEL
Fill the burner fuel tank with no. 1 or no. 2 fuel oil
BURNER START-UP
(in the event that the burner has been replaced)
1. Set the thermostat substantially above water temperature.
2. Close the line switch to start the burner. If the burner does not start immediately reset the manual overload
switch on the motor, if so equipped, and the safety switch of the burner primary control.
3. Bleed the fuel pump as soon as the burner motor starts rotating. To bleed the fuel pump, attach a clear
plastic hose over the vent plug. Loosen the plug and catch the oil in an empty container. Tighten the plug
when all the air appears to be purged.
4. If the burner stops during bleeding, wait three to five minutes for the control Safety Switch to cool, then reset
it manually.
5. If the burner stops after flame is established, additional venting is probably required. Repeat the bleeding
procedure.
CAUTION - Do not attempt to start the burner when excess oil has accumulated, when the furnace or boiler
is full of vapour, or when the combustion chamber is hot.
2
BEF SERIES
SETTING UP (CONTINUED)
ADJUSTING THE BURNER
Allow sufficient air to obtain a clean looking fla e by loosening the lock screws and oving the air shutter, and if
necessary, the bulk air band. Reduce the air supply until the fla e tips appear slightly s oky, then increase the
air just enough to cause the fla e tips to appear absolutely clean.
DRAFT CONTROL ADJUSTMENTS
The unit is set up in the factory to burn cleanly into at ospheric conditions. Therefore if a chi ney is fitted to the
achine, an "O" draft would be the opti u condition.
FINAL AIR-ADJUSTMENTS
Allow at least ten inutes for war -up, and longer if the unit is new, in order to burn off the oil deposits on the
heat exchanger and other surfaces. Check and adjust all controls. (See Manufacturer’s Instructions sheets.) Test
the pri ary control Safety Switch to insure a safety shutdown will occur in the event of equip ent alfunction
NOTE - These settings have already been co pleted for the achine and only apply if a new burner or coil is
installed.
OPERATION
STARTING THE MACHINE
1. Make sure all switches are in the "OFF" position.
2. Connect the electrical supply cable. (Plug the unit into the electrical receptacle.)
3. In "SETTING UP INSTRUCTIONS" you have already been asked to connect the unit to the water supply.
Turn on the water.
4. Pick up the spray gun and hold it fir ly, and pull the trigger to evacuate all air in the syste . Release gun
trigger.
5. Now turn Pu p Switch to "ON". The pu ping unit will start.
6. Hold the spray gun fir ly and squeeze the trigger on the gun, and when the spray is constant, turn the
Burner Switch to "ON". The oil burner will ignite. Then turn "THERMOSTAT" to the desired te perature.
CAUTION - The force of the water leaving the nozzle causes a kickback or recoil at the trigger gun.
3
BEF SERIES
OPERATION (CONTINUED)
CHANGING PRESSURE:
The variable unloader valve is already set to full pressure Do not adjust the unloader past the maximum
pressure, as this will not increase the performance and the excessive shut-off pressure will damage the machine
CLEANING CHEMICALS
Consult with your dealer for detergent recommendation
STOPPING THE MACHINE
1 Pump cold water through spray gun for two minutes
2 Shut off the pump and activate the spray gun to release pressure in the line
WARNING - DO NOT use gasoline, crankcase oil, any oil-containing gasoline, or any other volatile
substance for fuel
CAUTION - DO NOT run the fuel pump dry Always check the fuel level in the tank before running the
machine
SAFETY COMPONENTS
FLOW SWITCH
The flow switch prevents the burner from being turned on if there is insufficient water Proper water flow causes
the magnetic core to be pushed up, closing the reed contact This contact is interlocked with the fuel solenoid
valve in the oil pump
UNLOADER
The unloader allows all of the water delivered by the pump to return to the pump suction side If the trigger gun is
closed (shut) the valve goes into the bypass mode The pump runs without pressure The pump may be
SEVERELY DAMAGED, due to excessive overheating, if left running in the "Gun-Off" situation for more than 6
minutes
SAFETY RELIEF VALVE
The relief valve prevents the machine from being subjected to abnormally high pressures If this situation occurs,
the valve will blow off, relieving the pressure in the coil This valve may also operate if the unloader is adjusted
too high
THERMOSTAT
The built-in thermostat allows temperature adjustment up to 212°F
HIGH TEMPERATURE LIMIT SWITCH
The High Temperature Limit Switch is a thermostat which is set at 230°F This switch is not adjustable and will
only operate when the other controls fail to keep the water temperature within the normal operating range This
switch cuts power to the fuel solenoid
4
BEF SERIES
WASHING TECHNIQUES W/ FLOAT BOX
AND SOAP INDUCTION UNIT
1. Check that the Soap etering valve is adjusted to the ratio you want.
2. Turn the Soap Induction etering valve to "on".
3. Start the Pressure Cleaner.
4. When the work area is covered, allow enough "dwell" ti e to axi ize the effectiveness of the additive.
5. Turn the Soap etering valve to "off".
6. Rinse off soap.
7. Clean work area thoroughly with high pressure water, rinsing fro botto to top and then top to botto .
NOTE - Most detergents and any additives are corrosive in full strength. It is good practice to re ove
tubing fro additive jug after use and place it in clear water. Open the pu p additive valve and draw the
clear water into the line. Leave this tubing in clear water rather than the additive, if leaving for extended
periods.
NOTE - After any hours of operation, the hardened stainless steel nozzles supplied ay wear and give
reduced pressure. Be sure to replace with the sa e size, or order fro the dealer.
THINGS TO CHECK REGULARLY
1. Check for SYSTEM LEAKS. Leaks in the pressure side of the syste can cause pre ature wear (or even
failure) of the pu p. The WARNING signal for this kind of leak is "frequent" cycling of the unloader.
("FREQUENT" eans ore than once every 2 inutes in the "Gun-Off" position.) Check the gun and swivel
joints for leaks.
2. Check the OIL LEVEL at least once a week. Add ONLY the type and grade of oil specified for this pu p. (See
"Specifications and Features" sheet.)
3. CHANGE OIL as reco ended.
4. After you use che ical additives, thoroughly FLUSH the syste with clean water.
5. Inspect the POWER CORD regularly. Also check the POWER OUTLET SOCKET. For safety, replace worn or
da aged parts i ediately.
6. Never run the washer without water. TURN WATER ON FIRST.
7. PROTECT FROM FREEZING! When transporting your washer in te peratures below 32°F (0°C),
WINTERIZE the pu p, hoses and gun
5
BEF SERIES
WINTERIZING YOUR PRESSURE WASHER
(This is also good practice if the clea er is to remai u used for more tha 3-4 weeks.)
WITH A FLOAT BOX
1. Shut off the water supply, a d disco ect hose.
2. You eed a short (2’) le gth of hose with a male garde hose fitti g o o e e d.
3. Co ect the short hose to the i let of the machi e.
4. Put the other e d of the water hose i to a co tai er of wi dshield washer or a ti-freeze.
5. Tur o the Clea er a d ope gu u til liquid comes out of the ozzle "foamy" or "soapy".
6. Put gu i "OFF" positio for 5 seco ds to get a tifreeze i to bypass li e. Shut off motor, u it is ow
wi terized.
CAUTION - If your hose is lo ger tha 35 feet, the float box may empty before the liquid from the ozzle gets
foamy. If this happe s, refill the float box with a tifreeze a d co ti ue.
SERVICE AND MAINTENANCE
MAINTENANCE SCHEDULE
WEEKLY
Check the oil level of the high pressure pump. If the oil is milky or the oil level is below the mi imum mark,
cha ge or fill with SAE 20W or 30W oil.
MONTHLY
Clea the filter i the float valve. (A old toothbrush ca be used to scrub while the filter is held u der ru i g
water).
ANNUALLY
Clea the heati g coil, descale the heati g coil, clea the filter ahead of a d i the oil pump, a d check & reset
the combustio efficie cy of the bur er.
6
BEF SERIES
ANNUAL BURNER SERVICE
Clean Heating Coil - Remove burner from coil by removing the four flange mount nuts Inspect inside of
combustion chamber and if it is heavily sooted so that air passage could be a serious problem, clean the air
passage with a heavy duty vacuum Run machine at full pressure and check the inside coil for leaks
Check Oil Filter - Loosen nut cap of oil filter until cup and filter element can be removed Replace the filter
element At this time, check for water and sediment in the filter cup Finally, clean the cup with fuel oil
Check Oil Pump Screen - (ONLY if pump is not working properly): Remove the back of the oil pump taking care
not to lose any of the small pieces from inside the pump The screen is a steel mesh cylinder inside the pump
Check for water and sludge Clean with fuel oil and replace
Coil Maintenance - Liming of the coils is caused by mineral deposits from the water and occurs in hard water
areas The deliming procedure requires special caution and tools to perform We recommend that you call your
local service person if problems arise
CHECKING FOR SCALE OR LIMING IN HE COIL
1 Remove outlet orifice and check for any liming Clean the orifice if needed
2 Remove outlet gun and hose
3 Install a pressure gauge between the unloader and coil inlet
4 Turn on the pump without the water outlet gun or outlet orifice If the pressure reading is above 50 psi, have
your machine descaled Else, reassemble the machine
DESCALING
If pressure drop in the coil is over 50 psi - descaling is recommended Descaling requires the use of highly
corrosive chemicals It also requires the use of goggles and special protective clothing
1 This procedure requires a 20L pail of descaling chemical
2 Plumb the pump suction into the pail of descaling compound with a screen on the end of the suction line
3 Plumb a hose from the machine outlet back in the pail of descaling compound
4 Turn the pump on and circulate the compound through the machine for about 20 minutes
5 After that time the chemical being pumped out of the coil should be running thin and dirty rather than foaming
heavily
6 Remove the extra plumbing and reconnect machine together and run clean cold water through the machine
for five minutes
SE ING HE COMBUS ION EFFICIENCY OF HE BURNER
1 Remove the flame tube assembly from the burner
a Remove any heavy sooting on spinner head
b Change oil nozzle
c Change electrode insulators if cracked
d Check electrode points for excessive wear and replace
2 Check spark gap of transformer
3 Ensure that the fan moves freely
4 Fire the burner and check the exhaust gas with a smoke tester Using the suitable test instruments for smoke
and CO2 or O2 set the air settings to obtain a trace of smoke Measure the CO2 and the O2 at this point and
add sufficient air to reduce the CO2 or increase the O2 by one percent (1%) as an insurance margin, unless
otherwise specified by the appliance manufacturer’s instructions EXAMPLE: 13% CO2 & a trace of smoke
reduced to 12% CO2
5 Tighten all locking screws after the final adjustments are made
6 Start and stop the unit several times to ensure that there are no significant rumbles or pulsations
7
BEF SERIES
INDOOR INSTALLATION
NOTE: Machines to be used indoors MUST be in accordance with local regulations and CSA Standards B 39.
• Make sure chimney is of suitable size. (7" minimum).
• Make sure that there is enough air for combustion.
• Be sure to protect against a down draft in below freezing weather.
A DOWN DRAFT CAN CAUSE THE COIL TO FREEZE, RESULTING IN EXPENSIVE DAMAGE!
CHIMNEY SIZE
• All venting should be the same size as the stack opening (7" minimum).
• Never use vent pipe smaller than the stack opening.
• If total run is more than 25’, use larger size chimney.
• A 90 degree elbow is equivalent to a run of 20 feet.
• If a horizontal run is used, make sure the flow rises at least /4" per foot.
COMBUSTION AIR SUPPLY
• These hot water pressure cleaners burn No. or No. 2 Fuel Oil. This means that air is required for
combustion and for ventilation.
• The appliance installer will know how and where to place a supply air duct. Take care that this opening will
not promote drafts which could blow out the pilot light.
• Keep the area around the machine clear so this air can get to the burner. If the wheels are removed, the
machine should be bolted to a stand 8" off the floor.
APPLIANCE IN CONFINED SPACE
• The confined space should have two permanent openings: one near the top of the enclosure and one near
the bottom of the enclosure. Each opening shall have a free area of not less than one ( ) square inch per
000 BTU’s per hour of the total input rating of all appliances within the enclosure. The openings shall have
free access to the room interior which should have adequate infiltration from the outside.
8
BEF SERIES
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