Butler RO-16E User manual

USER MANUAL
Rotary Rack Ovens:
RO-16E, RO-16G, RO-16D

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CONTENTS
Ⅰ.Structure and functions------------------------------2
Ⅱ.Model ----------------------------------------------------2
Ⅲ.Main technical parameters--------------------------2
Ⅳ.Installation and debugging---------------------------2
Ⅴ.Operation and maintenance-------------------------3
Ⅵ.Attentions------------------------------------------------3
Ⅶ.Trouble treatment--------------------------------------5
Please read this Operation Manual carefully before operation and keep it properly.

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The merits of this product are listed below:
1. Convenient operation, less manual work and single person operation.
2. Suitable for many kinds of roasting, including bread, toast, biscuit, cookie, moon cake, snack and a variety
of meat etc.
3. Big roasting amount, 16 plates per roast.
4. Sound roast effect with consistent color, excellent taste.
5. Energy-saving, imported burner with low gas consumes and low exhaust.
6. Safe and reliable, with enclosed circuit design, and alarming is also equipped for releasing excess heat.
7. Low trouble happening rate, firm and durable and convenient maintenance.
8. Upper grade material, imported electronic components.
Ⅱ. Model
Ⅰ----stainless steel (304)
Ⅱ----Outer installed panel, inner electrolyse panel
Ⅲ----stainless steel 430
Ⅳ----front 430, inner electrolyse panel, painted outer installed panel
Number of roasting plates
Way of heating (C---Fuel D---Electric M---Gas)
Code mark of rotary convection oven
Ⅲ. Main parameters
Model
General electric
part
Electric heating
element
Fuelco
nsump
tion
L/h
Gas
Heat
load
MJ/h
Dimension
L×W×H(mm)
Weight
kg
Power
kw
Voltage
V
Power
kw
Voltage
V
Pressure pa
LPG
Pipeline
Natural gas
RO-16E
2.2
220/380
1.2
200
1280×2250×2400
1180
RO-16D
2.2
220/380
33
380
200
1280×2250×2400
1180
RO-16G
2.2
220/380
2800
1000
2000
200
1280×2250×2400
1180
Ⅳ. Installation and debugging
1. Position for installation
This equipment shall be installed to the place where there are no problems for the installation of auxiliary
devices, operation of working procedure and fire fighting. Considering cleaning, 100mm.space shall be
left for both sides of the machine.
2. Installation
This equipment is quite convenient to be installed. Adjust the device after it is well placed to make sure
that it is under horizontal condition, and then continue the connection of circuit, gas pipe (gas model)
and smoke venting system.
3. For safety considerations, grounding device shall be installed to equipment.
4. Debugging of the equipment

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After the completion of power supply configuration, the equipment shall be checked comprehensively,
like whether there is appearance abnormality, whether the control meters is under original condition,
whether there are buttons breakdown. And then clean the machine completely. After the completion of
this steps, adjust each device respectively.
①Air feeder: start the air feeder and then adjust the air exit to ensure even air outflow.
②Motor for rotary table: start the motor to check the tightness of the belt (adjust it if necessary) and
see whether the rotary table is under normal condition.
③Exhauster: press the exhauster button and see whether it is operating when the door is open and
stopping when the door is closed.
④After completing the three steps above, operate the machine integrally to make sure there are no
problems after putting into production.
Ⅴ. Operation and maintenance
1. Open the power to adjust roasting temperature according to roasted food varieties. Keep the set
temperature 10---15Min so that the temperature in the oven is under balanced condition after set
temperature is reached.
2. Open the oven door and push the cart full of roasting articles into the oven, and then close the door and
start the timer to roast.
3. Observe the roasting condition within the oven to see whether the set roasting time is appropriate.
4. The buzzer will alarm after the completion of this action. So it is time to open the oven and pull the cart
out. And then close the oven door for temperature reservation for the next roasting.
5. Clean the oven body daily after roasting is ended to keep the equipment tidy.
6. Clean the roasting chamber weekly (if necessary) to remove the dirt, residue etc to make sure there is no
smell within the oven.
7. Due to high temperature within the oven, add high temperature-resisting lubricating grease to each cart
wheel monthly to ensure flexible movement.
8. Remove the lifting bedplate and add lubricating grease to the slide way to ensure free up and down
movement.
9. Check the rotary plate tri-belt aperiodically and make adjustments to ensure proper tightness.
10. As to diesel oil type equipment, the sprayer and ignition shall be cleaned every three month to ensure
normal operation.
11. As to gas-firing type, the gas pressure shall be well monitored to make sure that the input pressure satisfy
relevant requirements.
Ⅵ. Attentions
1. The heating shall be avoided for injury in case of opening the door under high temperature conditions.
2. The cart shall be pushed to position so that the spring of the base plate lock the shaft, or else the cart
may deviate (or go to the wall) and influence the roasting quality. Non standard carts are prohibited for
use.
3. The measuring and control of temperature of this machine is single reaction type with no up and down
toasting temperature adjustment. So the temperature of the upper and lower area is adjusted through
multi-band air adjustment board. Temperature, time and air flow shall be applied for controlling toasted
food color, the air flow is better not to be changed. The rule shall be carefully researched for the output
of ideal roasting.

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4. Principle of air speed selection
①As to roasting with mould, low air speed and longer roasting time shall be selected.
②As to deeper color or thin and small product roasting, high speed shall be selected. The temperature
at the moment is high, so the roasting time shall be limited.
③As to large interval between cart shelf, lower speed air shall be used (the amount of roasting article
is large, so more time is needed) and vice-a-versa high air speed is needed.
Ⅶ. Trouble treatment
1. Table fir general trouble treatment (mechanical and electric part)
No.
Trouble characteristics
Reasons
Treatment
1
Opened power, but no
movement on the
equipment
1). Abnormal power
2). Malfunction of the travel switch
on the lower left of the oven
3). Burned fuse within the control
box, component trouble or
moment high voltage
4). Broken power switch
1). Check whether it is three
phase and four line
2). Adjust or replace travel switch
3). Replace fuse after checked to
be normal
4). Replace power switch
2
Rotated plate but
unmoved air blower
1). High and low air speed conversion
switch
2). Broken contactor or loosen coil
connection
3). Thermal relay jump, too low
voltage or too small set current
on the thermal relay
4). Damaged air blower
5). Power trouble
1). Replace switch or operate the
switch to see whether it is
normal
2). Overhaul or replacing
3). Reset or replace after checking
out the reasons
4). Repairing or replacing
5). Overhaul the outer power
supply
3
Moving air blower but
unmoved high and low
speed blower
1). Unclosed door
2). Travel switch failure
1). Well close the door
2). Adjust the position or replacing
4
Moving air blower but
unmoved rotary plate
1). Circuit trouble of the motor of the
rotary plate
2). Damaged rotary plate motor
3).Overloaded thermal relay
protection action
1). Overhaul the control circuit
2). Repair the motor
3). Reset or adjust the set value
larger
5
Opened oven door, but
non automatic rotary
plate positioning
1). Damaged close connection switch
on the top
2). Loosen close connection switch
on the top
3). Open circuit close connection
switch
1). Replace close connection
switch
2). Reset
3). Lock the connection joint

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6
Non working air exhauster
on the door top when the
door is opened or time
out
1). Damaged exhauster motor
2). Contactor trouble
3). Thermal relay jump
4). Motor be blocked due to rarity
5). Damaged timer
1). Overhaul motor
2). Check the coil connection of or
the contactor, replacing or
repairing
3). Reset or adjust to larger set
value
4). Clean, adjust and repair
5). Replace timer
7
Time out, but quiet
buzzer
1). Loosen connection
2). Damaged timer or buzzer
1). Check the circuit
2). Relevant repairing or
replacement
8
No steam or small
amount of steam after
pressing spraying switch
(reserved for special
ordering)
1). Damaged button switch
2). Blocked magnetic valve or burned
coil
3). Damaged spraying timer or
irrational adjustment
4). Too low water supply pressure
1). Replace button switch
2). Clean or replace coil
3). Replace or readjust spraying
time
4).Improve water supply
9
Non stopping spraying or
too much spraying
(reserved for special
ordering)
1). Too long spraying time
2). Too large pressure
3). Blocked magnetic valve or difficult
to close
1). Adjust the set value to 2-3
seconds
2). Adjust the water inlet valve to
let less water in
3). Clean magnetic valve
10
Uneven interval of oven
door
1). Aged door sealing
2). Loosen door adjustment structure
1). Replace sealing
2). Readjust
11
Uneven temperature
within the oven and
inconsistent toast
1). Irrational adjustment of the
heated air inlet
2). Uneven rotary plate or partial cart
center
1). Adjust air inlet bigger at the
point of higher temperature,
and vice-a-versa
2). Adjust the rotary plate or the
positioning spring of the cart
2. Table for general trouble treatment for the burner
No.
Trouble characteristics
Reasons
Treatment
1
Opened temperature
switch, but quiet burner
1). Damaged temperature switch or
error connection
2). Damaged burner controller (there
is power to the burner)
3). Abnormal procedure results from
abnormality
1). Overhaul switch or connection
2). Replace controller
3). Press the green button on the
burner for 1-2 seconds

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2
Running motor of the
burner, but difficult to
ignite
1). Lack of diesel or blocked oilway
2). Air in the oilway
3). Blocked spray nozzle
4). Damaged or blocked magnetic valve
5). Unmatched distance between spray nozzle
and fire rod
6). Broken ceramics of fire rod and result into
electric leakage
7). Problematic oil pump
1). Adding oil or clean oil line and
filter
2). Open exhaust valve, and start the
machine after completing
exhausting
3). Clean spray nozzle and replace
clean diesel
4). Repair magnetic valve or purging
5). Adjust and retrying
6). Replacing fire rod
7). Overhaul oil pump to see whether
it is blocked or there is trouble on
the oil line
3
The burner can be ignited,
but goes out quickly
1). Damaged or too dirty electric eye which
make it difficult to be detected
2). Troubled controller
1). Replace or clean the electric eye
2). Replace controller
4
Airing (namely blasting
after the combustion
chamber is ignited, but it
generally happens after
igniting for some times)
1). Loosen or broken spray nozzle, which
results into oil leakage and inefficient
burning
2). Too slow ignition (≥15 second) may be
due to:
(1) too dirty fire rod
(2) moved fire rod
(3) ruptured ceramics of the fire rod
(4) too dirty ceramics part of the ignition
transformer
3). Too dirty electric eye, which results into
unsmooth ignition and oil accumulation
4). Obstructed smoke venting pipe, which
results into obstruction
5). Low quality diesel, which results into
inefficient burning
6). Large amount of oil accumulation or
carbon deposit in the combustion chamber
7). Too dirty magnetic valve, which results
into oil leakage
1). Tighten the spray nozzle or
replace it
2). Selective methods;
(1) clean the fire rod
(2) adjust the position and fix it
(3) replace fire rod
(4) clean relevant positions
3). Clean electric eye
4). Clean smoke venting pipe
5). Replace diesel
6). Clean combustion chamber
7). Clean or over haul the magnetic
valve

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Marketed by:
TRUFROST COOLING PRIVATE LIMITED
1215, 12th Floor, Tower B, Emaar Digital Greens, Golf Course Extn. Road,
Sector 61, Gurugram –122102
T. [phone] [email protected]
www.trufrost.com