Lang RCOH-PT Operation Manual
ELECTRIC HALF SIZE
IL1453
COMPUTERIZED
CONVECTION OVEN
ECOH-PT, RCOH-PT
Installation and
Operation
Instructions
2M-W495 Rev. C 2/11/10
ECOH-PT
1
These symbols are intended to alert the user to the presence of
important operating and maintenance instructions in the manual
accompanying the appliance.
FOR YOUR SAFTEY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN
THE VICINTIY OF THIS OR ANY OTHER APPLIANCE.
POST IN PROMINEN T LOCATI ON
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT USER SMELLS GAS. THIS
INFORMATION SHALL BE OBTAINED BY CONSULTING YOUR LOCAL GAS SUPPLIER.
AS A MINIMUM, TURN OFF THE GAS AND CALL YOUR GAS COMPANY AND YOUR
AUTHORIZED SERVICE AGENT. EVACUATE ALL PERSONNEL FROM THE AREA.
WARNIN G
IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE INSTALLATION,
OPERATION & MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT.
WARN I N G
RISK OF FIRE OR ELECTRIC SHOCK
DO NOT OPEN
WARNIN G, TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE
CONTROL PANEL. NO USER-SERVICABLE PARTS INSIDE.
REPAIRS SHOULD BE DONE BY AUTHORIZED SERVICE PERSONNEL ONLY.
NOTICE
Using any part other than genuine Lang factory supplied parts relieves the manufacturer of all
liability.
Star reserves the right to change speci cations and product design without notice. Such
revisions do not entitle the buyer to corresponding changes, improvements, additions or
replacements for previously purchased equipment.
Due to periodic changes in designs, methods, procedures, policies and regulations, the
speci cations contained in this sheet are subject to change without notice. While Star
Manufacturing exercises good faith efforts to provide information that is accurate, we are
not responsible for errors or omissions in information provided or conclusions reached as a
result of using the speci cations. By using the information provided, the user assumes all risks
in connection with such use.
MAINTENANCE AND REPAIRS
Contact your local dealer for service or required maintenance. Please record the model number, serial
number, voltage and purchase & Installation Information in the area below and have it ready when you
call to ensure a faster service.
SAFETY SYMBOL
Model No.:
Serial No.:
Voltage:
1-Phase or 3 Phase:
Purchased From:
Location:
Purchase Date:
Installed Date:
2
PROBLEMS, QUESTIONS or CONCERNS
Before you proceed consult you authorized Lang service agent directory
or
Call the Lang Technical Service & Parts Department at 1-800-807-9054.
TABLE OF CONTENTS
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation
Leg Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Stacking the Oven. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Vent Cap Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Ventilation & Clearance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Oven Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Reversing the door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Initial Start-Up
Pre-Power On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
General Operation & Programming
Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Status Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Control Panel Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pace Timers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Program Enable Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Shelf Position Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting
Symptoms & Possible Causes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 - 21
Exploded View & Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 27
NOTICE ServiceonthisoranyotherLangappliancemustbeperformedbyqualied
personnel only. Consult your Lang Authorized Service Agent Directory. You
can call our toll free number 1-800-807-9054 or visit our website
WWW.STAR-MFG.COM for the service agent nearest you.
3
SPECIFICATIONS
30.2”
766mm
25.3”
643mm
53.3”
1353mm
25.3”
642mm
25.3”
642mm
20.8”
529mm
28.0”
711mm
25.3”
642mm
3.0”
76mm
Electrical
Connection
28.0”
711mm
30.2”
766mm
STAND OPTIONAL
Front Side View Top ViewRight Side View
IL1454
Model Height x Width x Depth Clearance from Weight
(without optional stand) combustible surface Installed Shipping Freight Class
ECOH 25.3” x 30.2” x 25.3” Side:6”, Back: 6”, Floor: 6” 185 lbs. 225lbs 85
642mm x 766mm x 643mm (84 kg) (102 kg)
SPECIFICATIONS
Star Number Previous Model
ECOHPT208CF EHS-PT-ACFAO 208 60 3.3 3 5.3 25.5 10 25.5 25.5 - 10
ECOH-PT208CF EHS-PT-ACFA 208 60 3.3 3 5.3 25.5 10 25.5 25.5 - 10
ECOHPT208CFC EHS-PT-ACFA 208 60 3.3 3 5.3 25.5 10 25.5 25.5 - 10
ECOHPT208CFR EHS-PT-ACF 208 60 3.3 3 5.3 25.5 10 25.5 25.5 - 10
ECOH-PT208MF EHS-PT-AF 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208NT EHS-PT-ANE 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208PC EHS-PT-A 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208PR 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208RF EHS-PT-ARF 208 60 3.3 1/3 7.8 38 8 23
ECOH-PT208SZ EHS-PT-ASHTZ 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT-208V EHS-PT-A 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208V7 EHS-PT-A 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208WA EHS-PT-AWA 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT208WD EHS-PT-AWD 208 60 3.3 1/3 7.8 38 8 23 21 23 10
ECOH-PT240SZ EHS-PT-ISHTZ 240 60 2.6 1/3 7.8 33 8 20 18 20 12
ECOH-PT-240V N/A 240 60 2.6 1/3 7.8 33 8 20 18 20 12
ECOH-PT240WA EHS-PT-IWA 240 60 2.6 1/3 7.8 33 8 20 18 20 12
ECOH-PT480CF EHS-PT-UCF 480 60 3.3 3 5.3 11 11 - 12
ECOH-PT480MF N/A 480 60 1 3 7.8 10 9 10 12
ECOH-PT480NT EHS-PT-U 480 60 1 3 7.8 10 9 10 12
ECOH-PT-480V EHS-PT-U 480 60 1 3 7.8 10 9 10 12
RCOHPT-208CF EHS-PT-ACF 208 60 3.3 3 5.3 25.5 10 25.5 25.5 - 10
RCOHPT-208V N/A 208 60 3 1/3 7.8 37.5 8 22 20.7 22 12
RCOHPT-240CF N/A 240 60 2.6 1/3 5.3 22.1 10 22.1 22.1 - 10
RCOHPT-440VM N/A 440 60 1.4 3 6.6 8.8 8.3 8.8 12
RCOHPT-480CF EHS-PT-UCF 480 60 3.3 3 5.3 11 11 - 12
RCOHPT-480V EHS-PT-A 480 60 1.4 3 7.8 9.5 9 9.5 12
VOLTS
AC Hz.
MOTOR
AMPS PHASE KW TOT.
4
AMPS
1 PH
WIRE
1 PH L1 L2 L3
21 23 10
WIRE
3 PH
EQUIPMENT DESCRIPTION
Depth
Width
Height
Motor Cover
Back-Up Controls
Controls
Door Handle
IL1455
Exterior Construction
The Top, Front, Back, and Sides are constructed of stainless steel with an aluminized bottom.
The oven exterior dimensions are:
30” (76.2 cm) Wide,
25.25” (74.3 cm) High,
26.5” (67.31 cm) Deep.
The oven door comes standard
with a high temperature
insulated window equipped with
a polycarbonate handle.
The oven cavity is insulated
with high temperature insulation
for efciency and reduced heat
loss.
Interior Construction
The oven is designed for ve
shelves and comes with ve
Chrome Plated Racks.
The interior cooking chamber
is constructed of stainless steel
with dimensions of:
15” (38.1 cm) Wide,
20” (50.84 cm) High,
21” (53.38 cm) Deep.
NOTICE
Operation
The ECOH oven is a forced air convection oven with a vented oven cavity.
The air is driven by a 1/3 HP fan motor.
Controls
Pre-Programmable Product Selections
Independent Shelf Timers for each Shelf.
Shelf Compensation Timing for uniform baking.
Technical
Oven operates as shipped 208V or 240V (single or three phase), or 480V (three phase).
The oven can be shipped with a Power Cord and Plug attached, but must be specied upon ordering
(part number is listed in the Parts portion of this manual).
Floor space required is 42” (106.68cm) Wide, 32.5” (82.55cm) Deep.
The oven weighs approximately 225 lb. (102.5 Kilograms).
The ovens are stackable, stacking kit available upon request.
The data plate is on the back side of the oven above the power cord.
The oven voltage, wattage, serial number, wire size, and clearance
specicationsareonthedataplate.Thisinformationshouldbecarefullyread
and understood before proceeding with the installation.
5
CAUTION
UNPACKING
Receiving the Oven
Upon receipt, check for freight damage, both visible and concealed.
Visible damage should be noted on the freight bill at the time of delivery and
signed by the carrier’s agent. Concealed loss or damage means it does not
become apparent until the merchandise has been unpacked. If concealed
loss or damage is discovered upon unpacking, make a written request for
inspection by the carrier’s agent within 15 days of delivery. All packing material should be kept for inspection. Do not return damaged merchandise to
Star Manufacturing Company. File your claim with the carrier.
Location
Prior to un-crating, move the oven as near to its intended location as practical. The crating will help
protect the unit from the physical damage normally associated with moving it through hallways and
doorways.
Un-crating
The oven will arrive completely assembled inside a wood frame and strapped to a skid. Cut the
straps and remove the wood frame.
The oven can now be removed from the skid.
THE UNIT IS EXTREMELY HEAVY. FOR SAFE HANDLING, INSTALLER SHOULD
OBTAIN HELP AS NEEDED, OR EMPLOY APPROPRIATE MATERIALS
HANDLING EQUIPMENT (SUCH AS A FORKLIFT, DOLLY, OR PALLET JACK) TO
REMOVE THE UNIT FROM THE SKID AND MOVE IT TO THE PLACE OF
INSTALLATION.
ANY STAND, COUNTER OR OTHER DEVICE ON WHICH OVEN WILL BE
LOCATED MUST BE DESIGNED TO SUPPORT THE WEIGHT OF THE OVEN.
SHIPPING STRAPS ARE UNDER TENSION AND CAN SNAP BACK WHEN CUT.
6
INSTALLATION
IL1430
16” or 28”
Stand
4” Leg
Cardboard
Leg
Mounting Hole
IL1431
Alignment Pins
pn: 2C-20108-11
Alignment Hole
Leg Installation
4” legs are available for single
countertop installations. Single and
double deck installations require
16” or 28” stand installation, casters
may also be used in certain
situations.
To install the 4” legs, place some
cardboard on the oor and gently tip
the unit onto its back. Fasten the
four, 4” legs into the threaded holes
located on the bottom of the unit.
Gently lift the oven into its operating
position.
16” & 28” stand installation, after
following the assembly
instructions that were provided with
the stand, gently lower unit on to
some cardboard as shown here.
Align the stand with the bottom of
the unit and secure with the
hardware provided. With the
assistance of carefully raise the unit
to its vertical position.
Stacking the Ovens
Two alignment pins (pn:2C-20108-11) are
needed if you intend on stacking two ECOH-C
on each other as shown. These pins must be
requested at the time of purchase, or call your
Lang authorized service agent, or Lang parts
department at 1-800-807-9054.
Having completed the previous step remove
any and all button plugs from the lower unit, so
the upper unit will lay properly.
Lay the upper unit on its back and screw the
alignment pins into the two rear holes.
With assistance lift the upper unit onto the lower
unit, being certain that the alignment pins go
into the alignment holes, as shown here.
NOTE: Each unit must have separate
electrical connections
7
INSTALLATION continued
Ventilation and Clearances
Standard minimum clearance from combustible construction is as follows.
4” from side
4” from back
6” from oor
• These ovens may be set directly, without legs, on a curbed base or non-combustible oor.
• If the oven is set without legs on a non-combustible oor or a curbed base, maintain a 4-inch back
clearance.
• If the oven is set directly against a non-combustible back wall, maintain a 6-inch clearance to the
oor.
• Do not install the oven closer than 4 inches from another oven on the right hand side (control panel
side).
• Do not install the oven closer than 12 inches from an uncontrolled heat source (char broiler etc.) on
the right side.
• Keep the area free & clear of combustible material, and do not obstruct the ow of combustion or
ventilation air.
• The installation of any components such as a vent hood, grease extractors, and/or re extinguisher
systems, must conform to the applicable nationally recognized installation standards.
NOTICE The installation of any components such as a vent hood, grease
extractors,reextinguishersystems,mustconformtotheir
applicable National, State and locally recognized installation
standards.
WARNING
WARNING
Electrical Connection
The electrical connection must be made in accordance with local codes or in the absence of local codes
with NFPA No. 70 latest edition (in Canada use: CSA STD. C22.1).
The electrical service entrance is provided by a 1 1/4-inch knockout at the oven back directly behind the
control compartment. A grounding lug is provided at the rear service entrance.
Certain units are provided with or can be purchased with a Cord & Plug kit
(Part number 9Q-ECOH-CK). This kit includes a 48” cord with a NEMA L15-30P plug and is for 3 Phase
units ONLY. In stacked situations each units needs to have separate cord & plug assemblies.
Oven Voltage
The Lang Model ECOH ovens can be operated on 208, 240-volt (single or three phase), or 480-volt
(three phase only) source. The Amp draw, KW rating, and phasing can be found in specication section
of this manual.
THIS APPLIANCE MUST BE GROUNDED AT THE TERMINAL PROVIDED. FAILURE
TO GROUND THE APPLIANCE COULD RESULT IN ELECTROCUTION AND DEATH.
INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL QUALIFIED TO
WORK WITH ELECTRICITY AND PLUMBING. IMPROPER INSTALLATION CAN
CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT. UNIT MUST
BE INSTALLED IN ACCORDANCE WITH ALL APPLICABLE CODES.
8
8
4
1
5
6
8
8
10
11
1
12
5
4
7
7
6
8
8
8
8
9
INSERT BEARINGS (ITEMS "5") INTO THE HINGES
(ITEMS "1" & "2") AS SHOWN THEN REAM WITH A
.508 REAMER.
ECOH HINGE RELPACEMENT KIT
pn: Q9-50313-030
ITEM NO. QTY. PART NO. DESCRIPTION
50313-031
HINGE PIN WELDMENT
EH-267
EH HINGE COVER
70201-19
70201-01
20109-43
20109-15
eh-198-1
BOTTOM HINGE PLATE ASSY
CR30-148
UPPER HINGE COVER FOR EH
EH-265-1
EH HINGE - TOP - FOR SVC KIT
3
4
5
6
7
8
9
10
11
12
2
2
2
2
2
8
1
1
1
1 EH-266-1
EH HINGE - BOTTOM - FOR SVC KIT
IL1426
Reversing the door
1. Disconnect oven from power.
2. Remove the top and bottom door hinge covers (4) by removing the two 10-32 Phillip head
screws (8).
3. Remove the top door hinge bracket (1) from the oven by removing the two ¼-20 Phillip head
screws (7). The hinge should now slide off of the door pin (this will now be your right hand
lower hinge)
4. Lift the door off the bottom pin and set aside.
5. Remove the bottom door hinge bracket (2) by removing the two ¼-20 Phillip head screws (7)
(this will now be your upper right hand hinge).
6. Remove the lower hinge mounting plate (9) by pulling it from behind the leg pad adapter on the
bottom of the oven.
7. Remove the two Phillips head screws in the bottom right corner of the oven, where the new
hinge will be placed.
8. Slide the hinge mounting plate (9) into place and mount the hinge bracket (this should be your
old upper hinge) using two ¼-20 (7) Phillips head screws.
9. Remove the two Phillips head screws in the upper right corner of the oven where the new hinge
will be placed.
10. Rotate the door 180° and slide the door pin into the bottom hinge bracket.
11. Slide the upper door hinge (1) onto the upper door pin and then screw into place using
two ¼-20 Phillip head screws.
12. Place the top and bottom door hinge covers (4) back on the oven using two 10-32 Phillip head
screws (8).
9
INITIAL START UP
IL1456
Back-Up Controls
Blower Wheel
Pre-Power On
After the oven is installed and connected to power, prior to turning on, verify the following
• The door opens and closes freely
• All racks are in the oven correctly
• All packing materials have been removed from the inside of the oven
Power On
Once the oven has been turned
on verify that the blower wheel
is spinning freely in a clockwise
position and that the elements
are heating properly.
Switch the back-up controls on
and make certain it can run the
unit,
Conrm that the thermostat
knob in the back-up controls is
move freely.
NOTICE
Duringtherstfew
hours of operation you
may notice a small
amount of smoke coming from the oven, and a faint odor from the smoke.
Thisisnormalforanewunitandwilldisappearaftertherstfewhoursofuse.
10
General Operation & Programming
Power Switch
AlphaNumeric
Display
Function Keys
Up & Down Button
Cancel Button
IL1476
Convection ovens constantly circulate air over and around the product. This strips away the thin layer of moisture
and cool air from around the product allowing heat to penetrate more quickly.
Always weigh your product. This will give you a more consistent size, color and quality.
To convert standard deck oven recipes, reduce the temperature 50 degrees and the time by 25%. Make minor
adjustments as necessary.
The lower the oven temperature the more even the bake.
Check the product near the end of the initial cooking.
Do not open the oven door during baking, as this will change the baking characteristics of the oven and make it
difcult to determine a nal program.
If the product is overdone on the outside and underdone on the inside, reduce the baking temperature.
If the product is pulling away from the edge of the pan, the temperature is too high or the cooking time too long.
A convection oven is a mechanical piece of equipment. The same control settings will always give the same results.
If the results vary, problems may be because of changes in the product preparation.
ECOH-PT Control Panel
The control panel consists of the following items.
Detailed operational descriptions are given later this
section.
Power Switch: Turns the oven on and off
Function Keys: Keys are active when a program
option is displayed on the display adjacent to that
key.
Up & Down Buttons: Allows you to scroll through
the programming selections.
Cancel: When scrolling through menus this will allow
you to back up to the previous menu. In program
mode this will allow you to back up to the previous
step.
Alpha Numeric Display: Visual interface.
Typical Operation Sequence
ACTION RESULT
Press the on switch.
Select “Run Oven”.
Select Product button next to
Icon desired.
Beeper sounds briey. Display says "Ready"
Select Product to start.
Select Product to start.. Display says, “Select shelf”
Press Product button next to
desired shelf.
Beeper sounds continuously.
Oven is ready for another
product.
Control panel comes on; display says
“LANG, Run Oven, Time Date
Program".
Display will show a list of product to
choose.
Display says “Preheating to
XXXF”.
Display shows possible product
selection for that temperature.
Display will show icon chosen and
begin to count down.
Display shows “DONE”, press button
and remove product from that shelf.
11
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