Page 1
SECTION 2
INSTALLATION
SECTION 2
INSTALLATION
NOTE: For U.S. installations the installation must conform with local codes or in absence of local codes, with
ANSI Z223.1-latest edition and electrical code ANSI/NFPA No. 70-latest edition.
NOTE: For Canadian Installations - The installation should be done in accordance with the CAN 1-B149.1 or .2
installation code and/or local code and the Canadian electrical code, Part 1, CGA C22.1 for the electrical features.
I. UNLOADING
Your Middleby Marshall Series PS200-R68 Oven(s)
is shipped partially assembled and it will arrive in a
carton.
Carton size for all Series 200-R68 Ovens is:
84"(2134mm) Long x
58" (1473mm) Wide x
44" (1118mm) High.
A Pre-installation Procedures Manual (MM P/N
88910-0009) is attached to the exterior wall of the
carton. This manual contains detailed instructions on
unpacking and moving the oven(s) into your facility.
When your common carrier or truck line notifies you
of delivery, you must have a forklift at the facility to
unload the carton(s).
Instructions for stacking the ovens are contained in
a separate manual issued to Middleby Marshall
Certified Installers.
If you have a door wider than the carton simply move
the carton into your facility and set up an appointment
with your Certified Middleby Marshall Installer.
If your door is narrower than the carton, then the oven
will have to be uncrated. Follow directions shown in
the Pre-Installation Procedures Manual.
Each crate must be examined before signing the Bill
of Lading. Report any visible damage caused by the
trucker in transit, and check for the proper number of
crates. If apparent damage is found, arrangements
should be made to file a claim against the carrier.
Interstate Commerce Regulations require that the
claim must be initiated by the consignee within 10
days from the date it is received.
NOTE
There Must Be Adequate Clearance Between
Oven And Combustible Construction.
Clearance Must Also Be Provided For
Servicing And For Operation.
CAUTION: It is required that the oven be placed under a ventila-
tion hood for adequate air supply and ventilation.
CAUTION: A minimum clearance of 0" from non-drive end of
oven to wall, 18" from drive end of oven to wall and 6" from
rear wall to air openings at rear of unit must be maintained.
For servicing and cleaning a minimum of 18" clearance from
all walls and combustible materials is recommended.
CAUTION: Do not obstruct the flow of combustion and ventila-
tion air to and from your oven. Do not obstruct the ventilation
holes in the control panel, as these provide the combustion
air for the burner.
9
Page 2
SECTION 2
INSTALLATION
PS200-R68 OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT
KITS AND EQUIPMENT
PS200-R68 PS200-R68 PS200-R68 PS200-R68
TYPE
OF
INSTALLATION
PS200-R68 Single Gas Oven 1 1
PS200-R68 Single Electric Oven 1 1
PS200-R68 Double Gas Oven 2 1
PS200-R68 Double Electric Oven 2 1
PS220-R68 Single Gas Oven 1 1
PS220-R68 Single Electric Oven 1 1
PS220-R68 Double Gas Oven 2 1
PS220-R68 Double Electric Oven 2 1
Gas Oven Electric Oven Single Oven Double Oven
Installation Installation Option Kit P/N Option Kit P/N
Kit P/N Kit P/N 49025-0007 31361
31350 31514
PS220-R68 OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT
KITS AND EQUIPMENT
PS220-R68 PS220-R68 PS220-R68 PS220-R68
Gas Oven Electric Oven Single Oven Double Oven
Installation Installation Option Kit P/N Option Kit P/N
Kit P/N Kit P/N 30752 31363
31352 31517
PS224-R68 OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT
KITS AND EQUIPMENT
PS224-R68 PS224-R68 PS224-R68 PS224-R68
Gas Oven Electric Oven Single Oven Double Oven
Installation Installation Option Kit P/N Option Kit P/N
Kit P/N Kit P/N 49025-0016 31362
31351 31516
PS224-R68 Single Gas Oven 1 1
PS224-R68 Single Electric Oven 1 1
PS224-R68 Double Gas Oven 2 1
PS224-R68 Double Electric Oven 2 1
10
Page 3
SECTION 2
INSTALLATION
PARTS LIST FOR SERIES PS200-R68 GAS OVEN
INSTALLATION KIT
PS200-R68, P/N 31350
PS220-R68, P/N 31352
PS224-R68, P/N 31351
ITEM QTY PS200-R68 PS220-R68 PS224-R68 DESCRIPTION
NO. PART NO. PART NO. PART NO.
1 1 22361-0005 22361-0005 22361-0005 FLEXIBLE GAS HOSE, 72"
2 1 23115-0010 23115-0010 23115-0010 3/4" GAS SHUTOFF VALVE
3 1 31006 30849 30851 CONVEYOR END STOP
4 1 30830 30830 30830 CONVEYOR LEFT REAR STOP
5 1 30796 30796 30796 CONVEYOR RIGHT REAR STOP
6 1 88910-0008 88910-0008 88910-0008 SERIES PS200-R68 OWNER/OPERATOR MANUAL
7 1 1002040 1002040 1002040 SERVICE STATION DIRECTORY
8 1 33900-0032 33900-0081 33900-0035 CONVEYOR WIRE BELT
9 1 42400-0089 49400-0090 49400-0197 MASTER LINK KIT
10 1 23125-0002 23125-0002 23125-0002 ELBOW 90° BLK REDUCER 1/2" X 3/4"
11 1 23153-0005 23153-0005 23153-0005 NIPPLE BLK 3/4 CLOSE
12 1 31315 31315 31315 PIPE, 31", UPPER OVEN
13 1 31238 31238 31238 NIPPLE BLK 1/2" X 4"
PARTS LIST FOR SERIES PS200-R68 ELECTRIC OVEN
ITEM QTY PS200-R68 PS220-R68 PS224-R68 DESCRIPTION
NO. PART NO. PART NO. PART NO.
3 1 31006 30849 30851 CONVEYOR END STOP
4 1 30830 30830 30830 CONVEYOR LEFT REAR STOP
5 1 30796 30796 30796 CONVEYOR RIGHT REAR STOP
6 1 88910-0008 88910-0008 88910-0008 SERIES PS200-R68 OWNER/OPERATOR MANUAL
7 1 1002040 1002040 1002040 SERVICE STATION DIRECTORY
8 1 33900-0032 33900-0081 33900-0035 CONVEYOR WIRE BELT
9 1 42400-0089 49400-0090 49400-0197 MASTER LINK KIT
(Two required for double oven)
INSTALLATION KIT
PS200-R68, P/N 31514
PS220-R68, P/N 31517
PS224-R68, P/N 31516
(Two required for double oven)
1
9
2
11
13
10
12
3
8
4
5
Owners
Operating
Manu al
6
7
Figure 2-1.
Series PS200-R68 Gas & Electric Oven
Installation Kits
11
Page 4
SECTION 2
INSTALLATION
ITEM QTY PS200-R68 PS220-R68 PS224-R68 DESCRIPTION
NO. PART NO. PART NO. PART NO.
1 1 35900-0055 37900-0184 35900-0411 BASE PAD
2 4 37900-0102 37900-0102 37900-0102 LEGS
3 2 22290-0009 22290-0009 22290-0009 SWIVEL CASTER W/LOCKING BRAKE
4 2 22290-0010 22290-0010 22290-0010 SWIVEL CASTER
5 32 A11039 A11039 A11039 3/8" LOCKWASHER
6 32 21416-0001 21416-0001 21416-0001 3/8" FLAT WASHER
7 32 220373 220373 220373 3/8 - 16 SCREW HEX HD SS
8 4 21256-0008 21256-0008 21256-0008 SCREWS FOR TOP 10-32 X 3/8" RH
9 32 21296-0005 21296-0005 21296-0005 10-32 X 3/4" SCREW HEX WASHER HD SS
10 1 22450-0228 22450-0228 22450-0228 RESTRAINT CABLE ASSEMBLY
13 1 31319 31319 31319 LABEL, UPPER
14 1 31320 31320 31320 LABEL, LOWER
15 1 32116 32116 32116 WIREWAY ASSEMBLY
16 2 21516-0001 21516-0001 21516-0001 POP RIVETS
17 1 32227 32227 32227 INSTRUCTION, CONTROL BOX INSTALLATION
Not shown 1 32023 31261 30878 OVEN TOP
ITEM QTY PS200-R68 PS220-R68 PS224-R68 DESCRIPTION
NO. PART NO. PART NO. PART NO.
1 1 35900-0055 37900-0184 35900-0411 BASE PAD
2 4 37900-0102 37900-0102 37900-0102 LEGS
3 2 22290-0009 22290-0009 22290-0009 SWIVEL CASTER W/LOCKING BRAKE
4 2 22290-0010 22290-0010 22290-0010 SWIVEL CASTER
5 32 A11039 A11039 A11039 3/8" LOCKWASHER
6 32 21416-0001 21416-0001 21416-0001 3/8" FLAT WASHER
7 32 220373 220373 220373 3/8 - 16 SCREW HEX HD SS
8 4 21256-0008 21256-0008 21256-0008 SCREWS FOR TOP 10-32 X 3/8" RH
9 32 21296-0005 21296-0005 21296-0005 10-32 X 3/4" SCREW HEX WASHER HD SS
10 1 22450-0228 22450-0228 22450-0228 RESTRAINT CABLE ASSEMBLY
11 1 30042 30042 30042 VENT EXTENSION
12 1 30039 30039 30039 OFFSET CROSSOVER VENT
13 1 31319 31319 31319 LABEL, UPPER
14 1 31320 31320 31320 LABEL, LOWER
15 1 32116 32116 32116 WIREWAY ASSEMBLY
16 2 21516-0001 21516-0001 21516-0001 POP RIVETS
17 1 32227 32227 32227 INSTRUCTION, CONTROL BOX INSTALLATION
Not Shown 1 32023 31261 30878 OVEN TOP
PARTS LIST FOR SERIES PS200-R68 SINGLE OVEN OPTION KIT
PS200-R68, P/N 31360
PS220-R68, P/N 30752
PS224-R68, P/N 49025-0016
PARTS LIST FOR SERIES PS200-R68 DOUBLE OVEN OPTION KIT
PS200-R68, P/N 31361
PS220-R68, P/N 31363
PS224-R68, P/N 31362
5,6,7,8,9,13,
12
10
14,16,17
4
11
Middleby
Marshall
3
15
2
Figure 2-2. Series PS200-R68 Single and Double Oven Option Kits
12
1
Page 5
38-1/2"
978mm
50-1/2"
1283mm
NOTE: The Model PS200-R68 Series ovens are
manufactured with the conveyor drive at either the right or
left end of the oven.
3
20"
813mm
Cooking
Zone
3
32"
813mm
Cooking
Zone
1”
25mm
44-3/4”
1137mm
1”
25mm
56-3/4”
1441mm
3
36-1/2"
927mm
10"
254mm
48-1/2"
1232mm
3"
76mm
76mm
3
4
PS220-R68
Top View
3"
PS200-R68
Top View
Model
40-1/2"
1028mm
68"
1727mm
4
Model
3
3
17-1/2"
445mm
45-3/4”
1162mm
42-1/2"
1080mm
57-3/4”
1467mm
40-1/2"
1029mm
10"
254mm
3
3"
76mm
4
3
Model
PS224-R68
Top View
40-1/2"
1028mm
68"
1727mm
17-1/2"
445mm
INSTALLATION
GAS OVEN: Gas Inlet
1
ELECTRIC OVEN: Conduit for
GAS OVEN: Electrical Junction Box
2
RECOMMENDED MINIMUM
3
CLEARANCES:
Rear of Oven to Wall - 3" (76mm)
Non-Drive End of Oven to Wall - 0"
Drive End of Oven to Wall - 18" (457mm)
OVEN VENT - GAS OVEN ONLY
4
2" x 3" (50mm x 75mm)
25mm
48-3/4”
1238mm
3
24"
813mm
Cooking
Zone
Electrical Connection
1”
49-3/4”
1264mm
SECTION 2
69-1/2"
1765mm
11372mm
10"
254mm
54"
27-1/2"
699mm
7-1/4"
184mm
12-1/2"
318mm
40-1/2"
1028mm
68"
1727mm
Front
View
17-1/2"
445mm
End
6-1/2"
165mm
View
Figure 2-3. Series PS200-R68 Oven Dimensions
47"
1194mm
20"
508mm
178mm
127mm
19-3/4"
9-3/4"
248mm
2
1
2
14-1/2"
368mm
Rear
View
1
7”
5"
502mm
3-1/8"
79mm
13
Page 6
SECTION 2
INSTALLATION
II. CONTROL BOX AND CABLE INSTALLATION
CAUTION: When attaching cables turn the circuit breakers off.
A. Install the control boxes, wireway and cables as shown in Figure 2-5.
B. Install the "UPPER" and "LOWER" labels as shown.
"UPPER" label
Wireway
"LOWER" label
Figure 2-4. Control Box, Wireway and Cable
Installation
14
Page 7
SECTION 2
INSTALLATION
III. FLUE VENT INSTALLATION
A. Install the flue vent: (Gas oven only)
NOTE: On a single oven the flue is factory mounted.
Flue
Fan
Rear
View
Figure 2-5. Single Oven Flue Installation
IV. RESTRAINT CABLE INSTALLATION
Install the restraint cable assembly on the oven as
shown in Figure 2-7.
Flue
Fan
3/4"
(19mm)
Restraint
Cable
Assembly
Rear
View
To Eyebolt
On Wall
B. On a double oven install the flue extension and
flue offset by sliding it down over the lower flue. Then
attach both flues with the screws provided.
Flue
ExtensionUpper Oven
Flue
Flue
Fan
Rear View
Offset
Lower
Oven Flue
Figure 2-6. Double Oven Flue Installation
49-3/4"
(1264mm)
3-5/16"
(84mm)
Rear Surface
of Oven
3/4" (19mm) Eyebolt
in Base Pad
Restraint Cable
Assembly
3/4" (19mm) Eyebolt
Wall of Structure
Figure 2-7. Restraint Cable Assembly Installation
15
Page 8
SECTION 2
INSTALLATION
GAS OVEN ROUGH-IN
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS200-R68 SERIES OVENS
CAUTION
IT IS REQUIRED THAT THE OVEN BE
PLACED UNDER A VENTILATION
HOOD FOR ADEQUATE AIR SUPPLY
AND VENTILATION.
GAS SUPPLY &
ELECTRICAL SUPPLY
PROVIDED BY CUSTOMER
DO NOT USE CONDUIT
FOR GROUND
5
ON
6
OFF
To
Oven
24"
6
610mm
ON
CIRCUIT BREAKER
15 Amp circuit breaker with lockout/tagout
electrical shutoff for each cavity. Wire each
cavity separately.
ELECTRICAL SPECIFICATIONS
DOMESTIC: 208-240V main blower motors, 1
Ph, 4.1 Amp draw, 50/60 Hz, 120V control
circuit, 3 pole, 4 wire system per cavity (2 hot,
1 neut, 1 grd). Do not use conduit for ground.
or
EXPORT: 200-208V or 220-240V main blower
motors, 1 Ph, 4.1 Amp draw, 50/60 Hz, 120V
transformer control circuit, 2 pole, 3 wire
system per cavity (2 hot, 1 grd). Do not use
conduit for ground.
GAS RATING
Model PS200-R68 is 120,000 BTU/Hour (30,240 kcal),
35.1 kW/HR
Models PS224-R68 & 220-R68 are 100,000 BTU/Hour
(25,200 kcal), 29.3 kW/HR
MINIMUM GAS METER RATING
450 Cu.Ft./Hour (12.74m3h) for 1 or 2 oven cavities.
Add 180 Cu.Ft./Hour (5.1m3h) for each additional cavity.
Minimum rating may not take other gas appliances into
consideration. Gas consumption varies at each site. Total BTU/
HR (kcal/hr) must be calculated on high flame off of each
appliance to determine if meter needs to be larger.
MINIMUM GAS PIPE SIZE
Natural: 2" (51mm) ID for 1 or 2 oven cavities with runs
up to 200 ft.(61m).
or
2-1/2" (64mm) ID for 3 or 4 oven cavities with runs up to
200 ft.(61m)
Must be a dedicated line.
Runs over 200 ft. consult factory
Propane: 1-1/2" (38mm) ID for 1 or 2 oven cavities with
runs up to 200 ft.(61m).
or
2" (51mm) ID for 3 or 4 oven cavities with runs up to 200
ft.(61m).
Must be a dedicated line.
Runs over 200 ft. consult factory
To
Oven
1
2
To Oven (Flexible Hose)
2
3
7
6”
152mm
3”
76mm
4
Figure 2-8
Typical Installation
GAS SHUTOFF VALVES
3/4" (19mm) ID full flow gas shut-off valve.
A separate connection and valve must be provided for
each oven.
REQUIRED SUPPLY GAS PRESSURE
Natural: 6 " to 14 " (152 to 356mm) water column
Propane: 11.5" to 14" (290 to 356mm) water column
SUGGESTED
If space permits service should be located at the drive
end of the ovens to allow access to switches and
valves.
User Supplied Items:
ITEM QTY DESCRIPTION
1 1 2"(51mm) X 2"(51mm) X 3/4"(19mm) TEE
2 3 3/4"(19mm) X 3"(76mm) NIPPLE
3 2 3/4" (19mm) FULL FLOW GAS SHUT-OFF VALVE
4 1 2"(51mm) X 2"(51mm) 90° ELBOW
5 1 2"(51mm) ID GAS SUPPLY PIPE LINE
-NATURAL GAS
6 2 15 AMP TOGGLE SWITCH - 2 POLE for GAS
16
OFF
24"
610mm
Page 9
ELECTRIC OVEN ROUGH-IN
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS200-R68 SERIES OVENS
CAUTION
IT IS REQUIRED THAT THE OVEN BE
PLACED UNDER A VENTILATION
HOOD FOR ADEQUATE AIR SUPPLY
AND VENTILATION.
SECTION 2
INSTALLATION
ELECTRICAL SUPPLY
PROVIDED BY CUSTOMER
DO NOT USE CONDUIT
FOR GROUND
CIRCUIT BREAKER
Separate circuit breaker with lockout/
tagout electrical shutoff for each
cavity. Wire each cavity separately.
100 Amp circuit breaker for 200-240V,
or 50 Amp circuit breaker for 380-480V.
ELECTRICAL SPECIFICATIONS
DOMESTIC: 208-240V main blower
motors and elements, 3 Ph, 75 Amp
draw, 50/60 Hz, 120V control circuit, 4
pole, 5 wire system per cavity (3 hot, 1
neut, 1 grd).
or
DOMESTIC: 220-240V main blower
motors and elements, 3 Ph, 75 Amp
draw, 50/60 Hz, 120V control circuit, 3
pole, 4 wire system per cavity (3 hot, 1
grd).
or
EXPORT: 380V or 400-416V main
blower motors and elements, 3 Ph, 50
Amp, 50/60 Hz, 120V transformer
control circuit, 4 pole, 5 wire system per
cavity (3 hot, 1 neut, 1 grd).
ELECTRICAL RATING
26 kW/HR
SUGGESTED
If space permits service should be
located at the drive end of the ovens to
allow access to switches and valves.
Figure 2-9
Typical Installation
6
To
Oven
6
To
Oven
ON
OFF
24"
610mm
ON
OFF
24"
610mm
17
Page 10
SECTION 2
INSTALLATION
V. VENTILATION GUIDELINES
A mechanically driven ventilation system is required for
the PS200-R68 Series Middleby Marshall conveyorized
gas ovens. The minimum hood canopy dimensions are
outlined below.
Local codes and conditions vary greatly from one area to
another and must be complied with. These are the
“Authority having jurisdiction” as stated by the National
Fire Protection Association, Inc. in NFPA 96-latest edition. Following are the suggested requirements for good
ventilation. Please remember these are general recommendations or guidelines, you may have a special condition or problem that will require the services of a
ventilation engineer or specialist. Proper ventilation is the
oven owner’s responsibility. Improper ventilation can
inhibit oven performance. It is recommended that the
ventilation and duct work be checked every three months.
Grease filters in the intake of the hood may be required
by local codes.
VENTILATION HOOD
The rate of air flow exhausted through the ventilation
system is generally between 1400 and 2500 CFM, but
may vary depending on the oven configuration and hood
design. To avoid a negative pressure condition in the
kitchen area, return air must be brought back to replenish
the air that was exhausted. A negative pressure in the
kitchen can cause heat related problems to the oven
components as if there were no ventilation at all. The best
method of supplying return air is through the heating,
ventilation and air conditioning system (HVAC). Through
the HVAC system, the air can be temperature controlled
for summer and winter. Return air can be brought in
directly from outside the building, but detrimental affects
can result from either extreme seasonal hot and cold
temperature from the outdoors.
NOTE: Return air from fan driven system within the hood
must not blow at opening of bake chamber or poor oven
baking performance will result.
VENTILATION CAPTURE TEST
It is recommended that a 30 second smoke candle test be
performed on your ventilation hood system. Follow the
steps below to complete the ventilation smoke test.
All tests are to be done on single ovens or lower units of
a double oven. We recommend you wear protective
gloves when performing this test. At no time should food
be present when the smoke test is being conducted. Also
check that no fire suppression system will be activated by
the smoke.
1. Turn ventilation system on.
2. Turn oven(s) on and allow to heat up to customers
normal operating temperature, or a minimum of 480°F
(248°C).
3. Turn conveyor off. Place a 30 second smoke candle
in a pie or cake pan which is no higher than 3" (76mm).
4. Open the front oven window. Next, light the smoke
candle in the pan and then slide the pan into the center
of the bake chamber on the conveyor belt and close the
window.
5. The ventilation hood should capture 90% to 100% of
the smoke produced by the candle.
10”
254mm
2”
51mm
minimum to
allow stacking
of ovens
17-1/2”
445mm
Figure 2-10
Vent Hood
8”
203mm
18
3”
76mm
Page 11
SECTION 2
INSTALLATION
VI. ELECTRIC SUPPLY FOR GAS HEATED OVENS
Electric supply for all gas heated ovens is 208-240 volts
AC single phase. Each oven requires a separate 15 amp
service. Connection is made as shown in Figures 2-8 &
2-12. A separate ground wire must also be supplied.
CAUTION: Before connecting incoming power to oven,
a voltage reading of each leg to neutral must be made.
These readings should not normally exceed 120 volts
each.
If one of the incoming legs reads over 130 volts, this
indicates the supply voltage has a high leg.
Export ovens are supplied with a stepdown transformer
for the 110V control circuit.
Call your local electrician or electrical power supply
company and have them remove the high leg from the
electrical supply line for the oven.
Connecting a high leg to the black lead of the oven will
severely damage many of the electrical components in
the oven.
CONNECTING A HIGH LEG TO THE BLACK WIRE
VOIDS ALL OVEN WARRANTIES.
Connect one 208-240V supply leg to the black wire and
the other 208-240V supply leg to the red wire. The supply
neutral should connect to the white oven wire and supply
ground should connect to the oven ground screw located
in the main junction box.
VII. ELECTRICAL CONNECTION
INFORMATION FOR ALL OVENS.
Check the oven data plate before making any electrical
connections. Connections must agree with data on oven
data plate (Refer below to Figure 2-11).
NOTE: In Canada with C22.1,Part 1 and/or local code.
A fused disconnect switch or circuit breaker (not furnished) MUST be installed in the electrical supply line
FOR EACH OVEN. A lockout/tagout electrical shutoff
must be installed for each oven, refer to Figure 2-9. The
service connection must meet all national and local
electrical code requirements. All connections are made
at one common connection at the back of each control
box.
NOTE:
When the oven is installed it must be electrically
grounded in accordance with local codes, or in the
absence of local codes. ANSI/NFPA - Latest edition.
WARNING
CAUTION
IT IS REQUIRED THAT THE OVEN BE
OVEN MUST BE KEPT CLEAR
OF COMBUSTIBLES
AT ALL TIMES.
CAUTION:
The power burner will not operate and gas will not flow through the burner
without electric power. No attempt should be made to operate the oven during
power failure.This oven is to be operated only on the type of gas as shown on
the specification data plate.
SUITABLE FOR INSTALLATION ON COMBUSTIBLE FLOORS ADJACENT
TO COMBUSTIBLE AND NONCOMBUSTIBLE WALLS WITH THE FOLLOW-
Middleby
A MIDDLEBY COMPANY
MODEL NO.
ID NO.
INPUT BTU PER HOUR MAXIMUM
MAN. PRESS.
DATA PLATE FOR OVENS WITH THE MACHINERY/DRIVE COMPARTMENT LOCATED AT THE RIGHT END OF OVEN
Marshall
SERIAL NO.
TYPE OF GAS
VAC AMPS AMPS HZ
IN.W.C.
WIRE WITH GROUND
Middleby
A MIDDLEBY COMPANY
MODEL NO.
ID NO.
INPUT BTU PER HOUR MAXIMUM
MAN. PRESS.
DATA PLATE FOR OVENS WITH THE MACHINERY/DRIVE COMPARTMENT LOCATED AT THE LEFT END OF OVEN
Marshall
SERIAL NO.
TYPE OF GAS
VAC AMPS AMPS HZ
IN.W.C.
WIRE WITH GROUND
ING MINIMUM CLEARANCES: ZERO INCHES TO LEFT SIDE WALL,
EIGHTEEN INCHES TO RIGHT SIDE WALL, SIX INCHES TO BACK WALL.
FOR INSTALLATION UNDER VENTILATING HOOD ONLY
MANUFACTURED UNDER U.S. PATENT NUMBERS 3,844,213 AND 4,154,861
ELGIN, ILLINOIS, 60120, U.S.A. COMMERCIAL OVEN ANS Z 83.12
SUITABLE FOR INSTALLATION ON COMBUSTIBLE FLOORS ADJACENT
TO COMBUSTIBLE AND NONCOMBUSTIBLE WALLS WITH THE FOLLOWING MINIMUM CLEARANCES: ZERO INCHES TO RIGHT SIDE WALL,
EIGHTEEN INCHES TO LEFT SIDE WALL, SIX INCHES TO BACK WALL.
FOR INSTALLATION UNDER VENTILATING HOOD ONLY
MANUFACTURED UNDER U.S. PATENT NUMBERS 3,844,213 AND 4,154,861
ELGIN, ILLINOIS, 60120, U.S.A. COMMERCIAL OVEN ANS Z 83.12
PLACED UNDER A VENTILATION HOOD
FOR ADEQUATE AIR SUPPLY
AND VENTILATION
"INTENDED FOR OTHER THAN HOUSEHOLD USE"
I
G
S
E
N
D
I
ACCEPTED FOR USE
CITY OF NEW YORK
DEPARTMENT OF BUILDINGS
MEA 309-83-E
"INTENDED FOR OTHER THAN HOUSEHOLD USE"
ACCEPTED FOR USE
CITY OF NEW YORK
DEPARTMENT OF BUILDINGS
MEA 309-83-E
C
R
E
A
M
N
A
G
S
A
A
S
S
O
C
A
I
C
E
R
T
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Figure 2-11.
Oven Specifi-
cation Data
Plate Refer-
ence
APPROVED
R
Page 12
SECTION 2
INSTALLATION
VIII. ELECTRIC SUPPLY FOR ELECTRICALLY
HEATED OVENS
Electrically heated ovens are available in 208 or 240
volts, 5 wire, 3 phase only. They are pre-wired at the
factory and only one common connection is necessary.
A standard oven is a 5 wire system (3 hot, 1 neut, 1 grd),
it will not have a stepdown transformer. The neutral wire
is combined with one 208-240 VAC, 3 phase leg to
provide a 110V control circuit.
If the oven was special ordered for a 4 wire system, it will
use a stepdown transformer for the 110V control circuit.
A 1-1/4" cutout is supplied on the rear of oven control box
for the electrical connection. A 1-1/4" strain relief fitting
must be used if flexible cable is used to run electrical
supply.
Be sure wire size is adequate to handle amperage draw
listed on data tag. Use Copper Wire Only.
Minimum Supply Conductor
ampacity -- 95 Amps Per Unit.
Maximum Supply Circuit protective
device -- 100 Amps Per Unit
Normal electrical requirements are as follows:
PS200 Series Single - 208-240V, 3 phase, 5 wire, 27kw,
100 amp service.
PS200 Series Double Oven - 208-240, 3 phase, 5 wire,
54 kw, 2 separate 100 amp services, one for each oven.
FOR OTHER SERVICES CONSULT FACTORY.
Electrical
Junction
Cover Plate
3/4" pipe for gas oven gas connection
or
1-1/4" hole for electrically heated oven
connection
Figure 2-12
Junction Connection Box
20
Page 13
CAUTION
DO NOT CONNECT BLACK
LEAD TO HIGH LEG
BLACK AND WHITE MUST
BE 120 VAC
High Leg Warning tag located on cover of electrical
connection box of gas heated ovens.
IX. GAS SUPPLY FOR GAS HEATED OVENS
Check identification plate located on machinery compartment (see Figure 2-11) to determine type of gas (Propane or Natural) to be used with the oven.
NOTE: If identification plate (Figure 2-11) is missing,
natural or propane ovens can usually be determined by
checking the manifold pressure rating on the gas combination valve. The rating for natural gas is 3-1/2" w.c. The
rating for Propane gas is 10.5" w.c.
Install the manual shutoff valve(s) enclosed with the oven
on the 3/4" gas connection pipe extending through the
control compartment at rear of oven control box.
If the rear of the oven is installed close to the wall, install
the 3/4" elbow on the 3/4" gas connection pipe coming
out the rear of the oven and then install the manual
shutoff valve(s). This will prevent kinking the connection
hose.
The minimum and maximum incoming line flow pressures (when oven(s) and all other gas appliances are on
high flame cycle) should be the following:
Natural Gas: 6.0"w.c. Minimum, 14"w.c. Maximum
Propane Gas: 11.5"w.c. Minimum, 14"w.c. Maximum
This incoming pressure reading can be taken by installing a gas pressure gauge in the inlet pressure tap of the
main gas valve. See Figure 2-13. Outgoing pressure can
be measured at the outlet pressure tap of the main gas
valve.
Remember, the longer the pipe runs, the more pressure
drops. One 90° elbow equals a 4 foot length of pipe.
NOTE
The installation must conform with local codes or in
the absence of local codes, with the National Fuel
Gas Code, ANSI Z223, 1-latest edition
In Australia the installation must conform with AGA
Code AG601 and with any requirements of the
appropriate statutory authority.
CANADIAN:
CAN/CGA-B 149.1 Natural Gas
Installation Code
CAN/CGA-B 149.2 Propane
Installation Code
SECTION 2
INSTALLATION
On ovens equipped with casters, the installation shall be
made with a gas connector that complies with the standard for gas connectors for Moveable Gas Appliances,
ANSI Z21.69-1987/CANI 6.10-88(or latest edition), and
Addenda, Z21.69a-1989(or latest edition), and a quick
disconnect device that complies with the standard for
Quick-Disconnect Devices for Use With Gas Fuel, ANSI
Z21.41-1989/CANI 6.9M79(or latest edition), and cable
restraint assembly (refer to Figure 2-7) must be provided
to limit the movement of the oven without depending on
the connector and the quick-disconnect device or its
associated piping to limit oven movement.
When an oven is required to be removed from its installation for service, shut off the gas valve upstream of the
gas connector. Disconnect gas connector, disconnect
the restraining device, move oven for servicing.
When service is complete, place oven in original location,
connect restraining cable device, connect gas connector, turn gas valve on. Follow standard start up procedure.
Refer below to determine what size gas pipe to run to the
oven (NOTE: each oven requires maximum BTU usage
of 120,000 BTU per hour for a PS200-R68 or 100,000
BTU per hour for a PS220-R68 and PS224-R68.) The
maximum total for a Double Oven would be 240,000 BTU
per hour for a PS200-R68 or 200,000 BTU per hour for a
PS220-R68 and PS224-R68.
RECOMMENDED SUPPLY PIPE SIZE:
Natural-
2" (51mm) ID for 1 or 2 oven cavities with runs up to 200
ft.(61m).
or
2-1/2" (64mm) ID for 3 or 4 oven cavities with runs up to 200
ft.(61m)
Must be a dedicated line. Runs over 200 ft. consult
factory.
Propane-
1-1/2" (38mm) ID for 1 or 2 oven cavities with runs up to 200
ft.(61m).
or
2" (51mm) ID for 3 or 4 oven cavities with runs up to 200
ft.(61m).
Must be a dedicated line. Runs over 200 ft. consult
factory.
NOTE: The recommended pipe sizes are larger than
usually required to eliminate any operation problems. It is
much less expensive to make the initial installment large
enough to do the job rather than redoing the job later.
GAS METER SIZE:
Minimum Gas Meter Size:
450 cu.ft./hour (3.2 liters/sec.) for single or double
oven.
Add 180 cu.ft./hour (1.3 liters/sec.) for each
additional cavity.
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Page 14
SECTION 2
INSTALLATION
CAUTION
DURING PRESSURE TESTING NOTE
THE FOLLOWING:
1. The oven and its individual manual shutoff valve
(located at the left rear of the oven) must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressure in
excess of 1/2 psig (3.45 kPA). Turn OFF main gas
shutoff valve or main gas supply line.
2. The oven must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve located at the rear of the oven during
any pressure testing of the gas supply piping system
at test pressure equal to or less than 1/2 psig (3.45
kPA).
3. If incoming w.c. pressure is over 14" w.c. a
separate regulator must be installed before the
3/4"manual gas shutoff valve located at the rear
outside of the oven.
WARNING
TROL VALVE REGULATOR DURING INITIAL TURN
VERY IMPORTANT TO OPEN MANUAL SHUTOFF
After the initial gas turn on, the manual shutoff valve
must remain open except during pressure testing as
outlined in the above steps or when necessary during service maintenance.
:
TO PREVENT DAMAGE TO CON-
ON OF GAS, IT IS
VALVE VERY SLOWLY.
22
Page 15
It is possible to convert ovens from natural gas to propane
and back. Call your local authorized factory service agent
to perform the conversion.
NOTE: In Canada to conform with CAN/CGA-B149.2
Propane Installation Code the oven must be ordered
Propane, it may not be converted in the field.
SECTION 2
INSTALLATION
Outlet
Pressure
Tap
Burner Blower
Air Adjustment
Plate
Figure 2-13. Gas Train
X. CONVEYOR BACKSTOP AND END STOP INSTALLATION
Locate the conveyor backstop and end stop in the
installation kit. Install the backstop and end stop at the
exit end of the oven. Refer to Figure 2-14.
Pilot Line
Low
Flame
Bypass
Line
Conveyor
End Stop
High
Flame
Solenoid
Valve
Conveyor
Rear Stop
On/Off KnobAlways Leave
In On Position
Combination
Gas Control
Valve
Manual
Shutoff Valve
Gas Cock
located below
machinery
compartment
Incoming
Pressure Tap
(Where
incoming gas
pressure is
measured)
Figure 2-14.
Installing Backstop and End Stop
23
Middleby
Marshall
Page 16
SECTION 2
INSTALLATION
NOTES:
24
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