Jackson AJ-90 User Manual
Performance/Capacities
Conveyors
AJ-90 Vision Series
• 270 racks per hour hi-temp sanitizing
rinse.
• 1.03 gallons per rack hi-temp sanitizing
rinse.
• Incoming water pressure regulator
• Recirculating prewash feature virtually
eliminates manual prerinsing and
saves on labor.
• Exclusive Adjust-A-Peak feature
(patented) allows the owner operator
to manually adjust the speed of the
conveyor system from 135 racks per
hour all the way to maximum capacity
of 270 racks per hour.
• Standard 25” clearance allows owner
operators the ability to wash large
utensils, trays, and bun pans.
• Prewash section has three upper arms
and two lower arms.
• Totally electro-mechanical; no solid
state controls utilized.
• Fully automatic including auto-fill.
• Prewash auto fill requires 110-140°F
separate connection and does not fill
through the booster heater.
• Self-draining stainless steel pumps
and impellers.
• Exclusive “Energy Guard” controls system operates wash and rinse
sections only when a rack is being
washed or rinsed.
• A long 23” wash section as well as
23” separation between wash and
rinse produces superior results.
• Convenient, externally operated
lever drains.
• Deep well scrap basket conveniently
located on front of machine facilitates
removal of heavy food soil.
• Stainless steel frame, legs, adjustable
bullet feet, and front appearance panel
are all standard.
• Standard 8” vent cowls/splash shields
on both wash and rinse ends of the
machine.
• Heavy gauge construction for extra
ruggedness and durability.
Standard Features
Operating Capacity
Racks per hour (NSF Rated) 270
Dishes per hour 6750
Glasses per hour 6750
Steam Coil Tank Heat
Coil Size IPS (Inches) 3/4
Steam Flow Pressure (PSIG) 10-20
Consumption @ 15 PSIG (Lbs/hr) 60
Prewash Pump Motor Horsepower 2
Prewash Pump Capacity (GPM) 270
Wash Pump Motor HP 2
Wash Pump Capacity (GPM) 270
Wash Tank KW 20
Conveyor Motor Horsepower 1/4
Conveyor Speed (Feet/minute) 8.0
Operating Temperatures
Prewash Tank–°F 110-140
Wash Tank–°F (Minimum) 160
Rinse–°F (Minimum) 180
Dimensions (Inches)
Length between dishtables 90
Machine width 25
Wall Clearance (Minimum) 4.5
Cavity/dish clearance (Maximum) 25
Shipping Information
Weight (Lbs) 1054
Dimensions (Inches)
Length 120
Depth 40
Height 78
Volume (Cubic feet) 217
Approximate Total Load AMPS
208V / 60HZ / 3PH 67.9
208V / 60HZ / 1PH 114.8
230V / 60HZ / 3PH 62.6
230V / 60HZ / 1PH 105.8
460V / 60HZ / 3PH 31.3
Booster Heater Options
External 40°F Min. Rise KW AMPS
208V / 60HZ / 3PH 36 100.0
230V / 60HZ / 3PH 36 90.5
460V / 60HZ / 3PH 36 45.2
External 70°F Min. Rise KW AMPS
208V / 60HZ / 3PH 54 150.0
230V / 60HZ / 3PH 54 135.7
460V / 60HZ / 3PH 54 67.8
Venting Requirements (CFM)
Input end 200
Output end 400
To tal CFM 600
Water Requirements
Incoming Prewash Tank Temperature (°F) 140
Incoming Wash Tank Temperature (°F) 180
With 36 KW booster heater option (°F) 140
With 45 KW booster heater option (°F) 110
Gallons per hour 279
Gallons per rack 1.03
Prewash Tank Capacity (Gallons) 16.0
Wash Tank Capacity (Gallons) 20.4
Incoming Waterline Size (IPS) (Minimum)
Prewash Tank Fill 3/4
Wash Tank Fill/Rinse 3/4
Optimum Flow Pressure (PSI) 15-25
Flow Rate Minimum (GPM) 4.7
Drainline Size IPS (Minimum) (Inches) 1 1/2
Power/Connections
Conveyors
AJ-90 Vision Series
Specifications
NOTE:
The AJ-90 series conveyor dishmachines are
listed by the National Sanitation Foundation (NSF),
Underwriters Laboratories Inc. (UL), and by the Canadian
Standards Association (CSA). They also meet the requirements of A.S.S.E. Standard No. 1004.
PERFORMANCE:
Fully automatic, single tank, rack
conveyor dishwasher with a recirculating prewash
designed to wash, rinse, and sanitize tableware and utensils commonly associated with the preparation and consumption of food items in a commercial foodservice
operation. Sanitization is accomplished through hi-temp
sanitization utilizing 180-195°F fresh water rinse. The
unit conveys standard 20” x 20” dishracks through a
recirculating prewash section where 120 gallons per
minute (GPM) of 110-140°F water is pumped over the
rack to mechanically prepare the tableware for washing.
Next, the rack is conveyor driven into a detergent laden
wash section where 270 (GPM) of 160°F (140°F in a
low-temp chemical sanitizing machine) wash water is
pumped over the dishrack to remove the food soil.
Finally, the rack is conveyor driven into a final rinse
section where a fresh water final rinse spray system
removes residual detergent and sanitizes. For hi-temp
sanitizing, the unit must be installed to a potable water
line capable of supplying 279 gallons per hour between
180-195°F at 15-25 PSI flow pressure for maximum
hourly rack capacity of 270 racks per hour.
CONSTRUCTION:
All stainless steel components
are 304 series stainless steel. No 400 series stainless
steel and/or plastics are utilized. Frame is constructed of
2” diameter stainless steel tubing formed and completely
saddle welded for superior strength. The prewash tank,
wash tank, and rinse chamber are formed and heliarc
welded 16 gauge #2B finish. Hood is 16 gauge #3 finish.
Stainless steel feet are adjustable ±1/2”.
PREWASH PUMP:
Internal prewash pump located
inside the prewash tub is totally stainless steel as is the
impeller. The prewash pump itself is totally integral with
the motor. Prewash water is recirculated from the prewash tank through the manifolds and wash arm system
at the rate of 120 GPM.
WAS H PUMP:
Internal wash pump located inside the
wash tub is totally stainless steel as is the impeller. The
wash pump itself is totally integral with the motor. Wash
water is recirculated from the wash tank through the
manifolds and wash arm system at the rate of 270 GPM.
PREWASH PUMP MOTOR:
A 2 HP totally
enclosed, fan cooled type motor drives the prewash
pump and arms. Single-phase motors are capacitor start,
induction run with internal thermal overload protection.
Three-phase motors are induction run with external overload protection. Motor shaft is supported by permanently
lubricated grease packed ball bearings.
WAS H PUMP MOTOR:
A 2 HP totally enclosed,
fan cooled type motor drives the wash pump and arms.
Single-phase motors are capacitor start, induction run
with internal thermal overload protection. Three-phase
motors are induction run with external overload protection. Motor shaft is supported by permanently lubricated
grease packed ball bearings.
CONVEYOR SYSTEM:
Racks are conveyed
through the machine by a center-mounted, heavy-duty
stainless steel pawl bar with stainless steel cast, counterweighted, wide surface pawls. The pawl bar is designed
to not interfere with spray patterns in the prewash, wash,
and rinse section. The pawl bar is driven by a 1/4 HP
motor and worm drive gear reduction unit. The conveyor
motor itself is totally enclosed, non-ventilated. Singlephase motors are capacitor start, induction run with
internal thermal overload protection. Three-phase motors
are induction run with external overload protection. Pawl
bar conveyor drive unit is mounted on the left hand side
of the machine and is enclosed with a removable stainless steel cover. Maximum conveyor speed is 7.5 feet per
minute.
ADJUST-A-PEAK:
The Adjust-A-Peak feature is a
mechanical feature located on the pawl bar drive unit itself
and allows the end-user to slow down the speed of the
conveyor drive unit when enhanced results are required
(i.e. baked-on food soil) or increase the speed of the
conveyor drive unit when maximum capacity is required.
By slowing down the conveyor, a rack of tableware
remains in the prewash, wash, and rinse sections for
longer periods of time. When soil loads are heavy (i.e. pots
and pans, trays, and bun pans), adjusting the conveyor to
slower speeds means outstanding results.
CHAMBER:
The chamber has a standard clearance
of 25” which is the highest clearance in the industry--even higher than competitive higher hood options. This
adds to the versatility of the machine since you can easily
accommodate larger utensils such as sheet pans and 60
quart mixing bowls. The combination of a higher hood in
conjunction with manually slowing down the conveyor utilizing the Adjust-A-Peak feature produces superior results
as well as adding to the versatility of the machine.
CONTROLS:
Controls are located in a stainless steel
control box mounted on top of the machine for ease of
access and increased reliability. Power “ON/OFF” switch
is the only manual switch required. “Energy Guard” fully
automates the machine and utilizes switching logic to
operate prewash, wash, and rinse sections only when a
rack is in place as well as turning the conveyor off when
a rack exits the machine and there are no other racks in
the machine. Regardless of machine voltage, all control
circuitry will be operated from a 110 volt control circuit
transformer. Again, the Adjust-A-Peak feature eliminates
the need for manual controls since you have the ability to
slow down the conveyor for extended prewash, wash,
and rinse contact time. The unit is completely wired with
105°C, 600V thermoplastic insulated wire and routed
through UL approved conduit. The control circuit itself is
protected by a manual reset 1 AMP overload protector
located on the front of the control box.
FILL:
Initial fill of the prewash tank and the wash tank
is automatic when machine is initially energized. There
are separate fills to each tank and each is controlled by
its own standard solenoid valve and vacuum breaker
assembly. The prewash tank needs to be hooked up to a
water line capable of filling with 110-140°F incoming
potable water rather than filling with 180°F from the
booster heater through the wash tank as does the competition. If the cold water thermostat option is utilized in
the prewash, an additional cold water line needs to be
hooked up to the machine. The wash tank fill line needs to
be hooked up to a 180°F minimum incoming potable
water line which normally would be supplied by an external booster heater or our own optional Hatco booster
heater packages. The fill solenoids for both tanks are activated by stainless steel float systems located in the individual tanks for required maintenance of tank water levels.
RECIRCULATING PREWASH:
The prewash
tank itself has a 16.0 gallon capacity and maintains that
level with a skimming type overflow. Prewashing action
is accomplished by recirculating 110-140°F water
through 20 separate stripping nozzles through three
upper arms and two lower arms. This superior action
removes heavy soil and deposits it in a large outside
deep well scrap basket located on the front of the
machine for easy access. A secondary removable pump
intake strainer protects the pump itself. Make-up water
comes from the wash at the rate of approximately 2
GPM. All five wash arms are easily removable and along
with removable prewash arm end caps, are easily cleanable without the use of tools.
RECIRCULATING WASH:
The wash tank has a
20.4 gallon capacity and maintains that level with a
skimming type overflow that flows excess wash water
into the prewash tank. Washing action is accomplished
by recirculating detergent laden wash water in the wash
tank through upper and lower wash arms. Make-up
water comes from the final rinse section and is controlled at approximately 2 GPM. The arms themselves are
extended and create a longer wash section than competitive models. Wash section is automatically activated by
racks as they pass through. Wash arms, upper and lower,
contain 43 separate stripping nozzles for superior performance. Both wash arms are easily removable and along
with removable wash arm end caps, are easily cleanable
without the use of tools. Large stainless steel strainer
pans as well as a pump intake strainer for secondary
protection are readily accessible and removable for
cleaning purposes. Knockouts and connections are provided to allow easy installation of detergent concentration sensor and dispenser tubing by others.
FINAL RINSE:
Fresh pressurized rinse water enters
the machine through a standard “Y” strainer, solenoid
valve, and approved vacuum breaker assembly and is
plumbed to upper and lower final rinse arms located at
the output end of the machine. Single rows of fan jet
nozzles are located on both rinse arms. Connection points
are provided for both rinse agent injection and sodium
hypochlorite (low-temp chemical sanitizing machines
only) into the final rinse line by others. Total final rinse
flow rate is 4.7 GPM.
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