Blodgett DFG-50 User manual

BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone [phone] Fax: [phone]
PN 34133 Rev E (6/01)
E2000 --- G.S. Blodgett Corporation
DFG-50, DFG-100, AC-500
Zephaire, Mark V, CTB,
KCO-25E

Installation and Operation Manual for Export Series Gas and Electric Convection Ovens
Installation 3..........................................................................
Operation 11...........................................................................
Maintenance 20........................................................................
Installations-og Betjeningsvejledning til Gas-og El-konvektorovne Eksportmodeller
Installering 23..........................................................................
Betjening 31...........................................................................
Vedligeholdelse 40......................................................................
Installatie-en Gebruikshandleiding voor Gas en Elektrische Convectieovens Exportserie
Installatie 43...........................................................................
Bediening 51...........................................................................
Onderhoud 60..........................................................................
Manuel d’Installation et d’Utilisation pour la Serie Export des Fours a Convection a Gaz ou
Electriques
Installation 63..........................................................................
Utilisation 71...........................................................................
Entretien 80............................................................................
Handbuch für den Einbau und den Betrieb von Gasbetriebenen und Elektrischen Umluftöfen
der Exportserie
Einbau 83..............................................................................
Betrieb 91.............................................................................
Wartung 100............................................................................
Manuale d’Uso e di Installazione per Forni Termoventilati a Gas ed Elettrici Serie Export
Installazione 103.........................................................................
Funzionamento 111......................................................................
Manutenzione 120.......................................................................
Manual de Instalação e Operação para Fornos de Convecção Elétricos e a Gás da Série Export
Instalação 123...........................................................................
Operação 131...........................................................................
Manutenção 140.........................................................................
ManualdeOperacioneInstalacionparalaSeriedeExportaciondelosHornosdeConveccion
Electricos y a Gas
Instalacion 143..........................................................................
Funcionamiento 151......................................................................
Mantenimiento 160.......................................................................
Handledning för Installation och Drift Exportserien Gas och Elektriska Konvektionsugnar
Installation 163..........................................................................
Drift 171................................................................................
Underhåll 180...........................................................................
Bιβλιο Οδηγιων Εγκαταστασησ και Χειρισµου για τη Σειρα Εξαγοµενων Φουρνων
Ηλεκτρικου και Γκαζιου
Εγκατάσταση 183........................................................................
Χειρισµός 191...........................................................................
Συντήρηση 200..........................................................................

2
Installation and Operation Manual
for
Export Series
Gas and Electric Convection Ovens

Installation
3
Delivery and Location
DELIVERY AND INSPECTION
All Blodgett ovens are shipped in containers to
prevent damage. Upon delivery of your new oven:
D Inspect the shipping container for externaldam-
age. Any evidence of damage should be noted
on the delivery receipt which must be signed by
the driver.
D Uncrate the oven and check for internal dam-
age. Carriers will accept claims for concealed
damage if notified within fifteen days of delivery
and the shipping container is retained for in-
spection.
The Blodgett Oven Company cannot assume
responsibility for loss or damage suffered in
transit. The carrier assumed full responsibility
for delivery in good order when the shipment
was accepted. We are, however, prepared to
assist you if filing a claim is necessary.
OVEN LOCATION
The well planned and proper placement of your
oven will result in long term operator convenience
and satisfactory performance.
D Place the oven at least 15.2 cm from the rear
wall and 15.2 cm from the side wall.
D Place the oven in a properly ventilated area.
D Place the oven under an exhaust hood, accord-
ing to Local and National Installation Standards.
D Position the oven so the supply plug is accessi-
ble.
D Place the oven in an area that is free of drafts.
D Keep the oven area free and clear of allcombus-
tibles such as paper, cardboard, and flammable
liquids and solvents.
D Do not place the oven on a curb base or seal to
a wall. This will restrict the flow of air and prevent
proper ventilation.
D For gas models the location must provide ade-
quate clearance for the air opening into the
combustion chamber.
Before making any utility connections to this oven,
check the rating plate to be sure the oven specifi-
cations are compatible with the gas (if applicable)
and electrical services supplied for the oven.

Installation
4
Oven Assembly
NOTE: This appliance shall be installed in accor-
dance with current regulations and used
only in a well-ventilated space. Refer to the
instructions before installing and using
this appliance.
NOTE: Installation must be performed by a quali-
fied installer only.
LEG ATTACHMENT
10 cm legs
1. Lay the oven on its back.
2. Screw the legs into the holes in the oven cor-
ners. Tighten the hex nut at the top of each leg
3. Tip the oven up on the legs.
4. Turn the adjustable leg feet to level the oven.
Figure 1
15 cm, 18 cm and 64 cm legs
1. Lay the oven on its back.
2. Align the threaded stud in each leg with the
nut inside each bottom corner. Turn the legs
clockwise to tighten.
3. Align the holes in each leg plate with the holes
in the oven frame. Secure each leg with two
1/2” bolts.
NOTE: See Caster Installation if applicable.
4. Tip the oven up on the legs.
5. Turn the adjustable leg feet (or casters) tolevel
the oven.
15 cm Adjustable Legs
Figure 2

Installation
5
Oven Assembly
ATTACHMENT TO STAND
1. Set the oven on the stand. Center it to the
frame.
2. Remove the oven’s right side panel.
3. Align the holes in the oven bottom with the
holes in the stand.
4. Attach with bolts, washers and nuts as shown.
5. Replace the side panel
Figure 3
CASTER INSTALLATION
NOTE: Install casters with locking devices on the
front. Install non-locking casters on the
rear.
Casters for Single and Double Stacked Ovens
1. Attach the legs.
2. Loosen the lock nut on each adjustable leg
foot. Remove the foot assemblies.
3. Insert one caster into each leg as shown.
Tighten the lock nuts to secure the casters.
64 cm Legs Shown
Adjustable
Leg Foot
Caster Assembly
Figure 4
Low Profile Casters for Double Stacked Ovens
1. Align the three holes in each caster assembly
plate with those in the oven bottom. Attach
with three 1/2” bolts.
Figure 5

Installation
6
Oven Assembly
DOUBLE SECTION ASSEMBLY
NOTE: Be sure to remove the single oven flue
boxes prior to attaching the flue connector.
AC-500, DFG-100/200, CTB, Mark V, and
Zephaire E&G
1. Secure the short legs to the bottom sections.
2. Stack the ovens.
3. Place the clips over the edge of the oven
frames.
4. Bolt the clips together with 3/8” bolts and nuts
provided.
5. Attach the flue connector.
Stacking
Clips
Flue
Connector
Figure 6
DFG-50
1. Stack the ovens
2. Remove the combustion compartment cover
and side panel.
3. Align the holes in the front and rear corners of
the ovens.
4. Attach with bolts, washers and nuts as shown.
5. Replace the combustion compartment cover
and side panel.
Figure 7
KCO-25E
1. Secure the short legs to the bottom sections.
2. Stack the ovens.
3. Remove the bottom left and right screws from
the upper section. Remove the top left and
right screws from the lower section.
4. Attach the two stacking angles. Use the
screws removed.
5. Attach the flue connector.
Stacking
Angle
Figure 8

Installation
7
Oven Assembly
GAS HOSE RESTRAINT (gas models)
If the oven is mounted on casters, a commercial
flexible connector with a minimum of 1.9 cm inside
diameter must be used along with a quick connect
device.
1. Mount the supplied bracket to the leg bolt just
below the gas inlet.
2. Attach the clip on restraining cable to the
mounting bracket.
Restraint Cable
Bracket
Back of Oven
Double stacked unit shown.
Figure 9
VENTILATION (gas models)
A mechanically driven, canopy type exhaust hood
is required. The hood should completely cover the
oven with an overhang of at least 15 cm on all
sides not adjacent to a wall. The distance from the
floor to the lower edge of the hood should not ex-
ceed 2.1m.
WARNING:
Failure to properly vent the oven can be
hazardous to the health of the operator
and may result in operational problems,
unsatisfactory baking and possible dam-
age to the equipment.
Damage sustained as a direct result of im-
proper ventilation will not be covered by
the manufacturer’s warranty.
Ovens ordered for hood venting are supplied with
a draft diverter. Install the draft diverter as follows:
1. Place the diverter over the flue connector with
the open area facing the front of the oven.
2. Secure with the sheet metal screws provided.
Front of
Oven
Draft Diverter
Full Size Oven Shown
Figure 10

Installation
8
Utility Connection
GAS CONNECTION (if applicable)
Connect the oven to the gas line with the proper
type of gas according to Local and National Instal-
lation Standards.
Setting Equipment for Other Types of Gas
1. Shut off the gas valve and turn off the operat-
ing switch.
2. Dismantle the gas block by means of cou-
plings.
3. Dismantle the burner and replace the injec-
tors.
4. Install the burner and gas block.
5. Check for leakage and possible loose electri-
cal connections.
6. Adjust gas pressure if necessary, See figure.
INLET PRESSURE TAP
NOTE: Zephaire-G/DFG-50 units only. See figure
for pressure tap location.
1. Removethebluepipecapfromthegasinlet
pipe.
2. Apply thread sealer to the male pipe threads.
3. Thread the inlet pressure tap assembly onto
the gas pipe and tighten.
4. Check for leaks.
Pressure Tap
DFG-50
Gas Pressure
Adjustment
Pressure Tap
Back of Oven All Units
Gas
Connection
Pressure
Tap
DFG-100 and Zephaire-G
Manifold
Pressure
Tap
AC-500
Manifold
Figure 11

Installation
9
Utility Connection
Type of
Gas Inlet Pressure
mbars
Burner
Pressure
mbars
Injector
Diameter
mm
Air
Opening
mm
Pilot
Injector
mm
Standard
Delivery
Value kW (H
i
)
DFG-100-3
G25 25 12 2,60 18 2 x 0,38 16 Natural Gas
G20 20 8 2,60 18 2 x 0,38 16 Natural Gas
G20/G25 20/25 Totally Screwed in 2,10 18 2 x 0,38 16 Natural Gas
G
2
0
/
G
2
5
2
0
/
2
5
T
o
t
a
l
l
y
S
c
r
e
w
e
d
i
n
Pressure Regulator
2
,
1
0
1
8
2
x
0
,
3
8
1
6
N
a
t
u
r
a
l
G
a
s
G30 30/50 17 1,60 10 2 x 0,20 16 Butane
G31 30/37/50 24 1,60 10 2 x 0,20 16 Propane
DFG-50
G25 25 12 2,50 9 2 x 0.38 8 Natural Gas
G20 20 8 2,50 9 2 x 0.38 8 Natural Gas
G20/G25 20/25 Totally Screwed in 2,10 9 2 x 0.38 8 Natural Gas
G
2
0
/
G
2
5
2
0
/
2
5
T
o
t
a
l
l
y
S
c
r
e
w
e
d
i
n
Pressure Regulator
2
,
1
0
9
2
x
0
.
3
8
8
N
a
t
u
r
a
l
G
a
s
G30 30/50 17 1,60 9 2 x 0,20 8Butane
G31 30/37/50 24 1,60 9 2 x 0,20 8Propane
Zephaire-G-L
G25 25 12 2,70 18 2 x 0.38 17,6 Natural Gas
G20 20 8 2,70 18 2 x 0.38 17,6 Natural Gas
G20/G25 20/25 Totally Screwed in 2,10 18 2 x 0.38 17,6 Natural Gas
G
2
0
/
G
2
5
2
0
/
2
5
T
o
t
a
l
l
y
S
c
r
e
w
e
d
i
n
Pressure Regulator
2
,
1
0
1
8
2
x
0
.
3
8
1
7
,
6
N
a
t
u
r
a
l
G
a
s
G30 30/50 17 1,60 10 2 x 0,20 17,6 Butane
G31 30/37/50 24 1,60 10 2 x 0,20 17,6 Propane
AC-500
G25 25 12 2,10 16 N/A 20,5 Natural Gas
G20 20 8 2,10 16 N/A 20,5 Natural Gas
G20/G25 20/25 Totally Screwed in 1,75 16 N/A 20,5 Natural Gas
G
2
0
/
G
2
5
2
0
/
2
5
T
o
t
a
l
l
y
S
c
r
e
w
e
d
i
n
Pressure Regulator
1
,
7
5
1
6
N
/
A
2
0
,
5
N
a
t
u
r
a
l
G
a
s
G30 30/50 17 1,32 16 N/A 20,5 Butane
G31 30/37/50 24 1,32 16 N/A 20,5 Propane

Installation
10
Utility Connection
ELECTRICAL CONNECTION
NOTE: Electrical connection must be performed
by a qualified installer only.
NOTE: The electrical connection must comply
with National and Local codes.
A strain relief for the supply cord is required. The
installer must provide a supply cord bushing that
meets all Local and National Installation Stan-
dards.
For Gas Models:
NOTE: Gas models have a phase sensitiveburner
control unit. If the phase and neutral are
switched the control locks out.
Connect phase + neutral + ground.
For Electric Models:
Connect the oven to a separate group with rigid
connection and circuit breaker. The circuit breaker
should disconnect all poles, including neutral with
a contact separation of at least 3 mm.
For 1 Phase --- Connect phase + neutral +
ground.
For 3 Phase --- Connect L1 + L2 + L3 + neutral +
ground.
INITIAL STARTUP
1. Set the THERMOSTAT to 260_Candoperate
for 2 hours prior to loading product. This pro-
cedure produces smoke.
2. Clean the oven after the initial burn-in process.
See page 20 for proper cleaning instructions.
K
W
/
S
i
V
l
P
h
Frequency
(
H
)
Max Load
KW/Section
V
oltage Phase
q
y
(Hz) L1 L2 L3 N
CTB/CTBR
5,6 400 3N 50 9 8 8 1
8,0 400 3N 50 13 11 11 2
KCO-25E
3,0 230 1N 50 13 --- --- 13
Mark V-III
11,0 400 3N 50 18 15 15 3
Zephaire-E
11,0 400 3N 50 18 15 15 3
DFG-100-3
0,7 230 1N 50 3 --- --- 3
DFG-50
0,7 230 1N 50 3 --- --- 3
Zephaire-G-L
0,7 230 1N 50 3 --- --- 3
AC-500
1,3 230 1N 50 6 --- --- 6

Operation
11
Solid State Controls
1
5
4
8
3
2
6
7
Gas Models
Only
Figure 12
OPERATION
NOTE: Operation is restricted to qualified person-
nel.
1. Turn on the gas valve. (Gas models only.)
2. Close the oven door.
3. Turn the SELECTOR Switch (1) to the desired
cook position.
The fan will start to turn and the temperature
controlwillgoon.
4. Set THERMOSTAT (5) to the desired tempera-
ture.
The burner willignite or the elements will come
on. The OVEN READY light (4) on the control
panelwillilluminate.
For gas models if in starting, the burner does
not ignite within a few seconds, the RESET
alarm light (2) will go on. Press the RESET
switch (3) to restart the burner.
The LIGHT OFF OVEN READY light (4) will go
out when the oven has reached temperature.
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
For the HUMIDAIRE control option:
1. When steam is desired, set the STEAM
CYCLE TIMER (8) to the required injection
time.
2. Momentarily press and release the STEAM
CYCLE START button (7). The STEAM indica-
tor (6) will light as water is injected into the
baking compartment.
Cool Down
1. Open oven door.
2. Turn the SELECTOR Switch (1) to COOL
DOWN.
Shut Down
1. Turn the SELECTOR Switch (1) to OFF.
2. Shut off the gas valve. (Gas models only.)

Operation
12
AC-500 Solid State Controls
7
2
1
9
6
3
8
4
5
Figure 13
OPERATION
NOTE: Operation is restricted to qualified person-
nel.
1. Turn on the gas valve (9).
2. Close the oven door.
3. Turn the SELECTOR Switch (1) to the desired
cook position.
The fan will start to turn and the temperature
controlwillgoon.
4. Set THERMOSTAT (7) to the desired tempera-
ture.
Theelementswillcomeon.TheOVENREADY
light (6) on the control panel will illuminate.
If in starting, the burner does not ignite within
a few seconds, the RESET alarm light (3) will
go on. Press the RESET switch (2) to restart
the burner.
The LIGHT OFF OVEN READY light (6) will go
out when the oven has reached temperature.
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
For the HUMIDAIRE control option:
1. When steam is desired, set the STEAM
CYCLE TIMER (8) to the required injection
time.
2. Momentarily press and release the STEAM
CYCLE START button (4). The STEAM indica-
tor (5) will light as water is injected into the
baking compartment.
Shut Down
1. Turn the SELECTOR Switch (1) to OFF.
2. Shut off the gas valve (9).

Operation
13
Zephaire Controls
ON
OFF
MAN
AUTO
ON
OFF
3
1
5
4
2
7
6
Gas
Models
Only
8
Figure 14
OPERATION
NOTE: Operation is restricted to qualified person-
nel.
1. Turn on the gas valve. (Gas models only.)
2. Close the oven door.
3. Turn the BLOWER Switch (1)onthe frontpanel
to ON. Set the COOL DOWN Switch (8) to
AUTO.
The fan will start to turn and the temperature
controlwillgoon.
4. Set THERMOSTAT (3) to the desired tempera-
ture.
The burner willignite or the elements will come
on. The OVEN READY light (2) on the control
panelwillilluminate.
For gas models if in starting, the burner does
not ignite within a few seconds, the RESET
alarm light (4) will go on. Press the RESET
switch (5) to restart the burner.
The LIGHT OFF OVEN READY light (2) will go
out when the oven has reached temperature.
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
For the HUMIDAIRE control option:
1. Momentarily press and release the STEAM
CYCLE START button (7). The STEAM indica-
tor (6) will light as water is injected into the
baking compartment.
Cool Down
1. Open oven door
2. Set the BLOWER Switch to ON.
3. Set COOL DOWN Switch (8) to MANUAL.
Shut Down
1. Turn the BLOWER Switch (1) to OFF.
2. Turn the THERMOSTAT (3) to OFF.
3. Shut off the gas valve. (Gas models only.)

Operation
14
CH-Pro3 (Solid State Programmable Digital Control)
1
14
2
10
3
4
5
6
89
11
12
13
7
15
16
Gas Models
Only
Figure 15
NOTE: Operation is restricted to qualified person-
nel.
OPERATION
Oven Startup:
1. Turn the SELECTOR SWITCH (1) to the de-
sired cook position. The burners ignite or the
elements come on. The HEAT INDICATOR (7)
lights.
On gas models, if the burner does not ignite
within a few seconds, the RESET ALARM
LIGHT(15)comeson.PresstheRESET
SWITCH (16) to restart the burner.
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
Manual Operation:
NOTE: Press the arrow keys to change the cook
time and temperature at any point during
manual operation.
1. Press the MANUAL PRODUCT KEY (11). The
manual and fan key LEDs light.
2. Press the TIME ARROW KEYS (3) to enter the
cook time.
For Cook with Pulse --- P r e s s t h e FA N K E Y
(9). Use the TIME ARROW KEYS (3) to enter
the pulse time. The fan key LED flashes.
3. Press the TEMPERATURE ARROW KEYS (6)
to enter the cook temperature.
4. For Cook and Hold --- Press and hold the
HOLD KEY (8). At the same time, use the TEM-
PERATURE ARROW KEYS (6) to enter the
hold temperature. The hold key LED lights.
5. The READY INDICATOR (4) lights when the
oven has reached the cook temperature.
6. Press the START KEY (12). The TIME DISPLAY
(2) counts down. The manual key LED flashes.
7. When the cook time expires the LEDs and dis-
plays flash and an alarm sounds. Press the
STOP KEY (14) to silence the alarm.
NOTE: In Cook and Hold the alarm self can-
cels. The oven cools to the hold tem-
perature. The time display counts up.
Press the HOLD KEY (8) to turn off hold
mode.

Operation
15
CH-Pro3 (Solid State Programmable Digital Control)
Product Key Operation:
1. Press the desired PRODUCT KEY (10). The
applicable LEDs light.
2. The READY INDICATOR (4) lights when the
oven has reached the cook temperature.
3. Press the START KEY (12). The TIME DISPLAY
(2) counts down. The product key LED flashes.
NOTE: InCookwithPulsethefanLEDflashes.
4. When the cook or pulse time expires the appli-
cable LEDs and both displays flash and an au-
dible alarm sounds.
5. Press the STOP KEY (14) to silence the alarm.
NOTE: In Cook and Hold the alarm self can-
cels. The oven cools to the hold tem-
perature. The time display counts up.
Press the HOLD KEY (8) to turn off hold
mode.
Oven Shut Down:
1. Turn the SELECTOR SWITCH (1) to OVEN OFF.
PROGRAMMING THE PRODUCT KEYS
NOTE: This procedure is also used to program
the default settings for the manual key.
1. Turn the SELECTOR SWITCH (1) to the de-
sired cook position.
2. Press the desired PRODUCT KEY (10). The
product and fan key LEDs light.
3. Press and hold the PROGRAM KEY (13) for
approximately five seconds until the product
key LED flashes.
4. Press the TIME ARROW KEYS (3) to enter the
cook time.
For Cook with Pulse --- P r e s s t h e FA N K E Y
(9). Use the TIME ARROW KEYS (3) to enter
the pulse time.
5. Press the TEMPERATURE ARROW KEYS (6)
to enter the cook temperature.
6. For Cook and Hold --- Press and hold the
HOLD KEY (8). At the same time use the TEM-
PERATURE ARROW KEYS (6) to enter the
hold temperature.
7. Press the PROGRAM KEY (13) to save the pro-
gram settings.

Operation
16
Solid State Digital Control
1
4
7
8
3
2
Gas Models
Only
65
Figure 16
OPERATION
NOTE: Operation is restricted to qualified person-
nel.
1. Turn on the gas valve. (Gas models only.)
2. Close the oven door.
3. Turn the SELECTOR Switch (1) to the desired
cook position.
The fan will start to turn and the temperature
controlwillgoon.
4. Press the TEMP key (4) and rotate the dial to
enter the desired temperature.
The burner willignite or the elements will come
on. The HEAT light (2) on the control panel will
illuminate.
For gas models if in starting, the burner does
not ignite within a few seconds, the RESET
alarm light (7) will go on. Press the RESET
switch (8) to restart the burner.
TheHEATlight(2)willgooutwhentheoven
has reached temperature.
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
For Cook with Pulse:
NOTE: Set the pulse time before loading the prod-
uct.
1. Press the PULSE KEY (6).
2. Rotate the DIAL (3) to enter the pulse time.
Pulsetimeisaportionofthecooktime.
For Cook and Hold:
NOTE: Settheholdtimebeforeloadingtheprod-
uct.
1. Press the HOLD KEY (5).
2. Rotate the DIAL (3) to enter the hold time.
Cool Down
1. Open oven door.
2. Turn the SELECTOR Switch (1) to COOL
DOWN.
Shut Down
1. Turn the SELECTOR Switch (1) to OFF.
2. Shut off the gas valve. (Gas models only.)

Operation
17
Intelliplus
4
2
1
6
9
5
7
3
10
8
11
Figure 17
OPERATION
NOTE: Operation is restricted to qualified person-
nel.
NOTE: Electric models only.
1. Close the oven door.
2. Turn the SELECTOR Switch (1) to OVEN ON.
3. Rotate the TEMPERATURE DIAL (4) to the de-
sired cooking temperature.
The LIGHT OFF OVEN READY (2) will light.
4. Press the COOK HI/LO FAN key (6) to select
the fan speed.
5. Press the FAN CON/CYC key (9) to select the
fan mode.
6. To display the temperature within the oven,
press and hold the ACTUAL TEMP key (5).
The oven has reached temperature when the
LIGHT OFF OVEN READY (2) light goes out.
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
For Cook and Hold:
NOTE: Settheholdtimebeforeloadingtheprod-
uct.
1. Press the HOLD KEY (7).
2. Rotate the DIAL (3) to enter the hold time.
Chain Event Programming:
1. Press PGM MODE ON/OFF (10).
2. Press the desired PGM# (8) key to program.
3. Set the temperature, fan speed, fan mode and
cook time. See above.
4. Press the EVENT # (11) key to advance to the
next event.
5. When all events have been programmed
press PGM MODE ON/OFF (10).
To use programming:
1. Load the product.
2. Press desired PGM # (8) key.
Shut Down
1. Turn the SELECTOR SWITCH (1) to OVEN
OFF.