Alto Shaam 20-20ML Service Manual

20•20 COMBINATION

OVEN/STEAMER

COMBITHERM®

EELLEECCTTRRIICC

MMLL SSEERRIIEESS

INSTALLATION

AND

MAINTENANCE

®

W164 N9221 Water Street ●P.O. Box 450 ●Menomonee Falls, Wisconsin 53052-0450 ●U.S.A.

PHONE: [phone] [phone]

U.S.A./CANADA FAX: [phone] [phone] U.S.A. [phone] INTERNATIONAL

www.alto-shaam.com

PRINTED IN USA

20•20ML ELECTRIC MARINE 05/03

COMBITHERM®INSTALLATION

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 1

RECEIVING & TRANSPORTATION

Upon receipt of the Combitherm combination
oven/steamer, check the exterior of the shipping
carton for any physical damage that could result in
damage to the contents. If the oven was not
received from the carrier in an upright position,
there is a stronger possibility of concealed damage.
Remove the carton or uncrate the unit carefully
and inspect for any transit damage. Immediately
report any damage to the delivering freight carrier.

The oven must remain on the pallet

while being moved to the installation site

by fork lift or pallet lift truck.

Note the dimensions required for doorways and
aisles for access of the oven and pallet to the
installation site. Transport the oven in an upright
and level position only. Do not tilt the oven.

With the oven on the original pallet, remove the
carton and all packaging materials. Open the oven
door and remove all documents and other
materials from the oven interior. Remove the
roll-in cart if so equipped.

®

MODEL

20•20

WIDTH

48-1/4" (1226mm)

DEPTH

50-1/2" (1283mm)

HEIGHT W/PALLET

82-3/8" (2092mm)

PALLETIZED DIMENSIONS

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 2

BASIC INSTALLATION SITE REQUIREMENTS

HOOD INSTALLATION IS REQUIRED

• Installation surface must be level.

• Do not install adjacent to flammable surfaces.

• Deep fat fryers or similar heat producing equipment must not be installed in

the immediate vicinity of the hand shower.

The oven must remain on the pallet while being moved

to the installation site with fork lift or pallet lift truck.

Do not tilt the oven.

VENTILATION

A steam ventilation hood is mandatory for the operation of the oven. The ventilation hood must be installed

in accordance with local building codes for steam exhaust and must protrude 12-inches to 20-inches

(300mm to 500mm) over the front side of the oven. A grease filter must be located in the protruding area of

the hood. Grease filters should be thoroughly cleaned on a regular basis following manufacturer's

instructions. Ventilation hoods must ensure an adequate amount of incoming air during operation and must

be operated whenever the combination oven/steamer is used in order to avoid the accumulation of

condensation in the hood area.

COMBITHERM®INSTALLATION

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 3

POSITIONING ON SITE

Lift the oven from the pallet with a fork lift or pallet lift truck positioned at the front of the oven.

To avoid damage, position the lift forks to the left of the condenser as indicated in one of the two

diagrams shown below. For additional damage protection, the use of two wooden boards, placed

between the bottom of the oven and the lifting forks, is strongly recommended.

MODEL

20•20

NET WEIGHT

958 lb (435 kg)

10"

(254mm)

3"

(76mm)

8"

(203mm)

CONDENSER

MODEL

20•20

COMBITHERM®INSTALLATION

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 4

INSTALLATION REQUIREMENTS

■■

■■

Do not install oven adjacent to flammable

surfaces. Strictly observe all local fire

safety regulations.

■■

■■

In order to ensure proper ventilation, a

minimum distance of at least 6-inches

(152mm) must be kept from the control

panel side [LEFT] of the oven and any

adjoining surfaces.

NOTE: In addition to ventilation

requirements, additional clearance

is needed for service access. A

minimum distance of 18-inches

(457mm) is strongly recommended.

■■

■■

Allow a minimum of 4-inches (102mm) from

the right side of the oven to allow the door

to open to at least a 90° angle. Fully opened,

the door will extend up to a 225° angle. If

the oven is furnished with the retractable

door option, allow a minimum clearance of

6-1/2-inches (16cm).

■■

■■

Allow a minimum clearance of 4-inches

(102mm) from the back of the oven for

plumbing connections.

■■

■■

Allow a 20-inch (50cm) clearance at the top of

the oven for free air movement and for the

steam vent(s) located at the top [RIGHT-REAR].

■■

■■

Do not install the oven adjacent to heat

producing equipment such as fryers,

broilers, etc. Minimum clearance

recommended: 20-inches (50cm).

Place the Combitherm oven on a stable, LEVEL

horizontal surface. For counter-top models, the

oven stand must be level. In addition, the overall

height of the oven should be positioned so the

operating controls and shelves may be

conveniently reached from the front.

ALL INSTALLATION INSTRUCTIONS

AND REQUIREMENTS MUST BE

STRICTLY OBSERVED.

IMPROPER CONNECTION

OF THIS APPLIANCE

NULLIFIES ALL WARRANTIES.

18"

(46cm)

4"

(102mm)

4" (102mm)

RETRACTABLE
DOOR OPTION:

6-1/2" (165mm)

20"
(50cm)

MINIMUM

20"

(50cm)

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 5

WATER SUPPLY

CONNECT TO POTABLE (DRINKABLE) COLD WATER ONLY

WATER PRESSURE REQUIREMENTS: MINIMUM 30 PSI (2 BAR)

MAXIMUM 90 PSI (6 BAR)

Flush the water line at the installation site before connecting the oven to the water supply. A shut-off valve

and approved back-flow preventer must be installed when connecting the oven to the cold water intake.

The water supply line must be a minimum of 3/4-inch (19mm). A water filtration system is recommended if

the water supply is between 7 and 9 grains of hardness. If water tests over 14 grains of hardness, the

installation of a water softener is strongly recommended. Install the line filter at the cold water intake

connection point.

PIPE SEALING TAPE (TEFLON®) MUST BE USED

AT ALL CONNECTION POINTS.

The use of a pipe sealing compound is not recommended.

THE SHUT-OFF VALVE MUST BE IN THE OPEN

POSITION WHEN THE OVEN IS BEING USED.

The hand shower spray hose is installed adjacent to the cold
water intake connection. A ball valve is installed on the
oven for hose connection to the COLD water source.
Assemble the washer and the flexible hose on the ball valve
and hang the spray handle on the holder previously
installed on the oven.

COMBITHERM®INSTALLATION

ASSEMBLY REQUIREMENTS

HAND SHOWER HOLDER

Fasten the hand shower holder in the holes
provided on the oven using the three (3)
screws packaged with the holder.

COMBITHERM®INSTALLATION

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 6

WATER DRAINAGE

The oven must discharge through an indirect
waste pipe by means of an air gap. The drain
thread is 1-1/4-inch (32mm) NPT.

A union is required. Install a 1-1/4-inch
(32mm) diameter drain line. The drain line
must always be a positive gradient away from
the Combitherm oven and not more than 12­inches (305mm) before an air gap.

NOTE: In the U.S.A., this equipment is to be

installed to comply with the Basic

Plumbing Code of the Building

Officials and Code Administrators

International, Inc. [BOCA], and the

Food Service Sanitation Manual of the

Food & Drug Administration [FDA].

If several units are to be connected to one
drain pipe, the dimensions of the pipe must
be sufficient to allow an unobstructed water
drain system.

AVERAGE DRAIN WATER TEMPERATURE

149°F (65°C)

1-1/4" (32mm) diameter NPT

WASTE PIPE

1-1/2" to 2" minimum diameter

(c. 38mm to 51mm)

2" (51mm)

Air Gap

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 7

ELECTRICAL INSTALLATION

ELECTRICAL CONNECTIONS MUST BE

MADE BY A QUALIFIED ELECTRICIAN IN

ACCORDANCE WITH APPLICABLE

ELECTRICAL CODES.

An electrical wiring diagram is located behind
the control panel on the left side of the oven.
The oven must be installed by a qualified
electrician. This appliance must be branch
circuit protected with proper ampacities, in
accordance with the wiring diagram located in
the electrical compartment of the oven. The
oven must be properly grounded in accordance
with the National Electrical Code and applicable
local codes.

CAUTION

ENSURE THE AVAILABLE POWER

SOURCE MATCHES THE

VOLTAGE STAMPED ON THE

NAMEPLATE OF THE OVEN.

Wire size for the main incoming power to the
unit must match the minimum size listed in the
specifications applicable to the specific oven
model. For supply connections, locate the wire
size posted on the label located on the electrical
control box cover, behind the service panel or
elsewhere listed in this manual.

When connecting to a Delta-B (wild leg) on a 3-phase system, the wild leg must be connected to line 3.

Before operating the oven, check all cable
connections in the electrical connection area
for tightness since connections can loosen
during transport.

NOTE: After both water and electrical

connections have been completed,
operate the oven in any cooking
mode for a period of 15 minutes and
recheck the main power connections
at the terminal block to make
certain they remain tight.

FOLLOWING ELECTRICAL

CONNECTION, THE FAN

MUST ROTATE IN THE

SAME DIRECTION AS

THE ARROW

LOCATED ON THE

OVEN FAN MOTOR.

THIS APPLIANCE WILL NO

T

FUNCTION PROPERLY AND DAMAGE

CAN OCCUR IF THE MOTOR

ROTATION IS NOT CORRECT.

Electrical

Panel

Terminal

Block

Electrical

Connection

MOTOR

with

Rotation Direction

Ground

TO CHANGE MOTOR DIRECTION,

EXCHANGE TWO OF THE

INCOMING PHASES.

ANSI/NSF4

COMBITHERM®INSTALLATION

20•20ML COMBITHERM ELECTRIC INSTALLATION AND MAINTENANCE MANUAL

PG. 8

Type of Oven floor

w/roll-in cart

Pan INCHES 40: 12" x 20"

Capacity 20: 18" x 26"

GASTRONORM 40: GN 1/1

20: GN 2/1

Side Rack INCHES 2-5/8

Spacing (MILLIMETERS) (65mm)

Interior INCHES 26-1/4

Width (MILLIMETERS) (667)

Interior INCHES 32-11/16

Depth (MILLIMETERS) (830)

Interior INCHES 60-1/4

Height (MILLIMETERS) (1530)

Noise

Level

Spray Hose 102-inches

Length (2600mm)

Water Consumption 21-26.5 gal/hr

(

APPROX.) (80-100 l/hr)

Steam Generator

Water Consumption

0.21 gal/min

(

APPROX.) (0.8 l/min)

Steam Generator 111.1 lb/hr

Rating (APPROX.) (50.4 kg/hr)

Steam

Generator

GALLONS 5.3

Volume (LITERS) (20)

Radiated

Heat

BTU/HR 15729

Loss (K J/H) (16608)

Latent

Heat

BTU/HR 11783

Loss (kJ/h) (12442)

Total

Heat

BTU/HR 27513

Loss (kJ/h) (29050)

Air Circulation

(WITH/WITHOUT HOOD)

cubic feet/hr 67804/54031

▲▲T=8K (m

3

/h) (1920/1530)

Air Circulation

(WITH/WITHOUT HOOD)

cubic feet/hr 25426/18363

▲▲x=5g/kg (m

3

/h) (720/520)

ADDITIONAL TECHNICAL DATA

20•20ML

MODEL ➜➜

The noise emission level related to the workplace is lower than: 70 dBA