10 SYSTEM INFORMATION
PRESSURE/FLOW: The burner is equipped with either
a pressure switch or flow switch to control the burner. When
the trigger on the spray gun is squeezed, water begins to
move through the coil and pressurize. The flow/pressure
switch turns the burner on and begins to heat the water.
Whenever the water spray stops or if the water is shut off,
the burner will shut off.
WARNING:
Burner should fire only when the
trigger is squeezed and spraying water, if it comes on at any
other time, shut off the machine and have it serviced.
NATURAL GAS/ PROPANE GAS BURNER: The gas
burner uses a vertical coil with a natural draft aspirating
type burner. It has electronic ignition for an auto lighting
burner pilot with a 90 second lockout for safety. If the
burner does not light within 90 seconds turn the burner
switch off and on again to start the ignition sequence over.
The vertical coil can be connected to an exhaust flue, and
must have a draft diverter mounted at a maximum 30"
above the unit. Exhaust flue must never run horizontal,
check your local code for exhaust flue size requirements.
Do not store any wood, pallets, hoses, or any other
flammable material under or near the burner area.
PRESSURE DELIVERY SYSTEM:
DISCHARGE HOSE: Use only a wire braid hose rated
for the output pressure and temperature of the machine.
Single wire braid hoses are generally
rated from 2500 to 3000 PSI and
double wire braid from 4000 to 4500
PSI. Additional hose lengths can be
added with quick couplers with a
minimal loss in pressure of about .5
PSI per foot. Inspect hoses for wear and replace if
necessary. Avoid kinking or running over the hose to
extend the hose life.
WARNING:
Hydro Tek hot water machines re-
quire special 250º Rated hose to operate in the steam
mode. If the hose is not replaced when worn or if it is not
replaced by a Hydro Tek original equipment hose, it may
burst and serious injury and burns could result.
QUICK COUPLERS: The quick couplers on the high
pressure hose and spray nozzle make
it easy to change nozzles or hoses.
When connecting hoses or nozzles,
be certain that the collar on the
quick coupler snaps back to the
locked position or the nozzle or
hose may come loose when pressure is applied to it. If the
quick connect begins to leak, replace the O-ring (specify
Viton or EDPM material) located in the female socket
coupler. Grease the coupler periodically to make it work
smoothly. Replace if it becomes worn. Twist couplers are
used on the wands so they can be interchanged.
TRIGGER GUNS: The trigger gun is merely a valve that
turns water spray on and off. If it begins to leak
or fails to shut off, replace or repair the valve
assembly. Never lock the gun in the on position
or point it at any person or any part of the body.
Machines that spray steam only are equipped
with an open gun that does not shut off the water
spray.
SPRAY WAND: Wands are available in 2 to 6 foot
lengths for various cleaning applications. If the unit is
equipped with a dual wand you can adjust the pressure by
turning the knob on the valve to divert part of the water
through the low pressure nozzle.
Length
Pipe Size
0-50 FT.
1 1/4"
51-150 FT.
1 1/2"
151-200 FT.
2"
NG Pipe Chart: For 450,000 BTU
IGNITION SENSOR / ROD: After extended ignition
arcing, insulating deposits may form on the ignition rod,
reducing the arc intensity. Also, because of the high heat
zone beneath the burner, premature failure of the rubber
insulation covering on the ignition wire may cause arcing to
a ground before reaching the pilot ignition rod.
