Welbilt Convotherm maxx pro C4 EB User manual

Combi Oven
Convotherm maxx pro
C4 table-top models
Installation Manual UL, USA - Original, ENG
Advancing Your Ambitions

FOR THE INSTALLER, OPERATOR, RESPONSIBLE OWNER
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors or liquids in the
vicinity of this or any other unit.
WARNING
Improper installation, adjustment, alteration, service or maintenance can
cause property damage, injury and death. Read the installation, operating
and maintenance instructions thoroughly before installing or servicing this
equipment.
WARNING
Disconnect power at the main external power switch before servicing or
repairing a combi oven.
WARNING
To reduce the risk of electric shock, do not remove or open cover.
No user serviceable parts inside. Refer servicing to qualified personnel.
Disconnect power supply before servicing.
AVERTISSEMENT
Afin de réduire le risque d'électrocution, ne pas retirer ou ouvrir le capot.
Aucune pièce réparable ne se trouve à l'intérieur. Confier le dépannage à du
personnel qualifié. Débrancher l'alimentation électrique avant réparation.
IMPORTANT
IT IS COMPULSORY TO POST INSTRUCTIONS WHICH ARE TO BE FOLLOWED IN THE EVENT
THE USER SMELLS GAS. THESE INSTRUCTIONS MUST BE LOCATED IN A PROMINENT LOCA‐
TION, AND BE FULLY UNDERSTOOD BY ALL USERS OF THIS EQUIPMENT. THIS INFORMA‐
TION NEED TO BE OBTAINED FROM YOUR LOCAL GAS SUPPLIER.
ALL SERVICE MUST BE PERFORMED BY A QUALIFIED CONVOTHERM-BRAND AUTHORIZED
TECHNICIAN.
KEEP AREA FREE AND CLEAR OF COMBUSTIBLES.
Installation
■Installation of this unit must be done by a licensed professional when installed in the Commonwealth
of Massachusetts.
■The wiring diagram is located on the inner part of the side panel.
Customer documentation
■The customer documentation is part of the combi oven.
■Keep the customer documentation manuals handy at all times so that you can look up any required
information.
■Keep the customer documentation manuals for the entire life of the unit.
■Carefully read the installation manual, the operating manual, and the operating instructions before
using, handling, and working on this unit.
■If you transfer the combi oven to a new owner, make sure to give the new owner the customer docu‐
mentation manuals as well.

Table of Contents
1 General 7
1.1 Environmental Protection 7
1.2 Identifying Your Combi Oven 8
1.3 Customer Documentation Structure 10
1.4 About This Installation Manual 10
1.5 Safety Information That Must Be Read without Exception 11
2 Configuration and Functions 12
2.1 The Combi Oven's Configuration and Functions 12
2.2 Operating Panel Layout and Functions 15
3 For Your Safety 16
3.1 Basic Safety Instructions 16
3.2 Your Combi Oven's Intended Use 18
3.3 Warning Labels on the Combi Oven 20
3.4 Hazards posed by the unit 22
3.5 Safety Devices 25
3.6 Staff and Work Area Requirements 27
3.7 Personal protective equipment 29
4 Transportation 30
4.1 Transporting the unit to the installation location 30
4.2 Preparing for Unpacking 30
4.3 Included equipment and parts 31
5 Setup 32
5.1 Adjacent Systems 32
5.2 Installation location requirements 33
5.3 Removing the unit from the pallet 38
5.4 Setting up the unit on a work table 39
5.5 Setting Up the Unit on a Stand 41
5.6 Setting Up Units in a Stacking Kit 42
6 Installation 43
6.1 Electrical installation 43
6.1.1 Planning the Electrical Installation 43
6.1.2 Performing the Electrical Installation 45
6.1.3 Connecting an Energy Optimization System (for Electrical Units Only) 46
6.1.4 Connecting the Signal Tower 48
6.1.5 Connecting the Water Treatment Filter Monitoring System 50
6.2 Gas Installation 52
6.2.1 Planning the Gas Installation 52
6.2.2 Forced Air Burner and Gas Main Valve Locations 54
6.2.3 Performing the Gas Installation 55
6.2.4 Measuring the Supply Flow Pressure 56
6.2.5 Measuring the Exhaust Gas Values 57
6.3 Network Connection 58
6.3.1 Planning the Network Connection 58
6.3.2 Making the Network Connection 59
6.4 Water connections 60
Table of Contents
Installation Manual 5

6.4.1 Water supply 60
6.4.2 Checking the water quality 63
6.4.3 Drain Connection 64
6.5 Installing the fully automatic oven cleaning system 65
6.5.1 Components of Fully Automatic Oven Cleaning System 65
6.5.2 Connecting the Fully Automatic Cleaning System 67
6.6 Installing the Grease Collection Canister 69
6.6.1 Connecting the Grease Collection Canister 69
7 Placing into operation 70
7.1 Working Safely When Putting the Unit Into Operation 70
7.2 Procedure for Placing the Unit into Operation 71
7.3 Measuring unit gaps 74
8 Removing from Service and Disposal 75
8.1 Removing from Service and Disposal 75
9 Technical data 76
9.1 Dimensions and weights 76
9.2 Maximum permissible loading weight 78
9.3 EB/ES Electrical Supply 79
9.4 GB/GS Electrical Supply 83
9.5 Gas Characteristic Values for Natural Gas (USA), Propane (USA) 84
9.6 Heat loss 85
9.7 Water connections 85
9.8 Water quality 86
9.9 Boiler 87
9.10 Water consumption during cooking 87
9.11 Water consumption during cooking and cleaning 88
10 Connection drawings 89
10.1 Convotherm 4 6.10 Electrical units 89
10.2 Convotherm 4 6.10 Gas Unit with Boiler 91
10.3 Convotherm 4 6.10 Gas Unit with Sprayer 93
10.4 Convotherm 4 6.20 Electrical units 95
10.5 Convotherm 4 6.20 Gas Unit with Boiler 97
10.6 Convotherm 4 6.20 Gas Unit with Sprayer 99
10.7 Convotherm 4 10.10 Electrical units 101
10.8 Convotherm 4 10.10 Gas Unit with Boiler 103
10.9 Convotherm 4 10.10 Gas Unit with Sprayer 105
10.10 Convotherm 4 10.20 Electrical units 107
10.11 Convotherm 4 10.20 Gas Unit with Boiler 109
10.12 Convotherm 4 10.20 Gas Unit with Sprayer 111
Table of Contents
Installation Manual 6

1 General
1.1 Environmental Protection
Policy statement
Our customers’ expectations, the legal regulations and standards we have to follow, and our compa‐
ny’s reputation are what drives the quality and service behind all our products.
Our environmental management policy is not only designed to ensure that we are always in full com‐
pliance with all environmental laws and regulations, but also reflects our commitment to the environ‐
ment and to continuously improving our performance in this field.
In order to ensure that we meet all of our environmental goals while maintaining the high quality of our
products, and that things stay this way, we have developed a quality and environmental management
system.
This system meets the requirements set forth in ISO 9001:2015 and ISO 14001:2015.
Environmental protection measures
The following measures apply to this product:
■Uses fully compostable packing products
■Uses RoHS-compliant products
■Complies with the REACH regulation
■Recommends and uses biodegradable cleaning agents
■E-waste recycling
■Environmentally friendly disposal of old units through the manufacturer
Join us in our commitment to protecting the environment!
1 General
Installation Manual 7

1.2 Identifying Your Combi Oven
Nameplate location
The nameplate is found on the left side of the combi oven.
Nameplate layout and structure for electrical units
No. Designation
1Unit name
Combi Steamer
2Trade name
Letters Meaning
C4 Convotherm maxx pro line of units
eT easyTouch controls
eD easyDial controls
xx.yy numbers Unit size
EB Electrical units with boiler
ES Electrical units with water injection
-N On units with NSF certification
3Electrical specifications
4Marks
5Serial number
Letters Meaning
Heating method Electrical unit (V)
Steam generation meth‐
od
■Sprayer (S)
■Boiler (B)
Unit size ■6.10 (1)
■6.20 (2)
■10.10 (3)
■10.20 (4)
Year of manufacture ■2021 (21)
■2022 (22)
■...
Month of manufacture ■January (01)
■February (02)
■March (03)
■...
Consecutive number 4-digit
6Item number
1 General
Installation Manual 8

Nameplate layout and structure for gas units
No. Designation
1Unit name
Combi Steamer
2Trade name
Letters Meaning
C4 Convotherm maxx pro line of units
eT easyTouch controls
eD easyDial controls
xx.yy numbers Unit size
GB Gas unit with boiler
GS Gas unit with water injection
-N On units with NSF certification
3Electrical specifications
4Marks
5Serial number
Letters Meaning
Heating method Gas unit (W)
Steam generation meth‐
od
■Sprayer (S)
■Boiler (B)
Unit size ■6.10 (1)
■6.20 (2)
■10.10 (3)
■10.20 (4)
Year of manufacture ■2021 (21)
■2022 (22)
■...
Month of manufacture ■January (01)
■February (02)
■March (03)
■...
Consecutive number 4-digit
6Item number
7Gas specifications
1 General
Installation Manual 9

1.3 Customer Documentation Structure
Unit documentation parts
Document type Contents
Installation manual ■Describes how to transport, set up, install, and put the unit into opera‐
tion
■Goes over all the hazards involved in the various installation activities
and how to prevent and/or counter them
■Contains technical specifications
Operating manual ■Describes the work sequences and operating steps when cooking and
cleaning
■Includes the maintenance schedule and troubleshooting information
■Goes over all the hazards involved when operating the unit and how to
prevent and/or counter them
Operating instructions ■Describes the unit’s user interface
■Includes the instructions for using the software
Documentation for accessories
For information on how to install accessories (e.g., recoil hand shower, hood, stand on casters, stack‐
ing kit), please refer to the corresponding instructions for accessories.
1.4 About This Installation Manual
Target groups
Name of target group Tasks
Person placing the unit
into operation
(service technician)
■Responsible overall for placing the combi oven into operation
■Briefing the user
Store manager
Person authorized to
give orders in the kitch‐
en area
■Briefed on all of the combi oven's safety-relevant functions, mecha‐
nisms, and devices by the person placing the unit into operation
■Shown how the unit is operated by the person placing the unit into oper‐
ation
■If necessary, helping out as directed with transportation within the facili‐
ties and with setting up the unit
Mover Transporting the unit within the facilities
Service technician ■Setting up the unit
■Installing the fully automatic oven cleaning system
■Placing the unit into operation and removing it from service
Electrician ■Connecting the unit to the electrical connection at the facilities
■Uninstalling electrical connections
Water and wastewater
installer
■Connecting the unit to the water connection at the facilities
■Uninstalling water connections
■Connecting the unit to the drain connection at the facilities
■Uninstalling the drain connection
Gas technician Installing and uninstalling gas connections
Decimal mark used
In order to ensure that all numbers can be properly understood internationally, a decimal point is al‐
ways used.
1 General
Installation Manual 10

1.5 Safety Information That Must Be Read without Exception
Safety information found in the documentation for the customer
Only the installation manual and operating manual provide safety information for the combi oven.
The installation manual provides safety information for the transportation, setup, installation, placing-
into-operation, and removal-from-service tasks it describes.
The operating manual provides safety information for the cooking, cleaning, and maintenance tasks it
describes.
When using the operating instructions, the operating manual or installation manual should always be
consulted in order to obtain the relevant safety information. When performing activities that go beyond
simply using the software, the safety information in the operating manual and installation manual must
always be observed.
Parts of this document that must be read without exception
Failure to take the information in this document into account may result in death, injury, or property
damage.
In order to ensure their safety and the safety of others, everyone working with/on the combi oven must
read and understand the following parts of this document before starting any work:
■The 'For Your Safety' on page 16 section
■The sections describing the work that will be carried out
Danger symbol
Danger symbol Meaning
Used to warn of potential injury. Observe all the precautionary state‐
ments following this symbol in order to avoid injury or death.
Precautionary statements
The precautionary statements in this manual are categorized using the following hazard levels:
Hazard level Consequences Likelihood
Death / severe injury (irreversible) Imminent
Death / severe injury (irreversible) Potential
Minor injury (reversible) Potential
NOTICE Property damage Potential
1 General
Installation Manual 11

2 Configuration and Functions
2.1 The Combi Oven's Configuration and Functions
Parts and functions (electrical units)
The figure below shows a size 6.10 combi oven used as an example representing all electrical mod‐
els:
No. Designation Function
1Ventilation port ■Draws in ambient air in order to remove moisture from the oven
cavity
■Compensates for pressure fluctuations inside the oven cavity
2Air vent Lets hot steam escape
3Door handle ■Used to open and close the unit door
■Cracked-open position for safely opening the unit ("safety lock")
■Closing-shut function
■Antibacterial material with silver ions ("HygieniCare")
4Unit door ■Seals the oven cavity
■When opened, it can be slid backwards along the unit's side in
order to save space ("disappearing door") (optional)
5Control panel ■Used to operate the unit
■Antibacterial ("HygieniCare")
6Suction panel ■Used to distribute heat uniformly within the oven cavity
■Separates the fan compartment from the oven cavity
7Rack Used to hold standard-size bakeware
8Camera (not shown) Recognizes the food to be cooked together with the ConvoSense
assistance system (optional)
9Core temperature probe,
sous vide probe (optional)
■Used to measure the food's internal temperature
■Available as an internal version that is permanently connected
inside the oven and/or as an external version that can be tem‐
porarily connected
10 Unit feet Are height-adjustable so as to make it possible to level the unit
11 Oven cavity Is where food is placed while it is being cooked
12 Recoil hand shower
(not included in certain
units)
■Meant exclusively for rinsing the oven cavity with water
■Is retracted automatically into its holder after being used
■Antibacterial ("HygieniCare")
13 Vents at the bottom of the
unit
■Used to ventilate the unit
■Must not be blocked
2 Configuration and Functions
Installation Manual 12

No. Designation Function
14 Side panel Covers the unit's wiring compartment
15 Nameplate Used to identify the unit
16 Network connection Used to connect to a network or the cloud.
Parts and functions (gas units)
The figure below shows a size 6.10 combi oven used as an example representing all gas models:
No. Designation Function
1Ventilation port ■Draws in ambient air in order to remove moisture from the oven
cavity
■Compensates for pressure fluctuations inside the oven cavity
2Exhaust outlet Discharges hot exhaust gases
3Air vent Lets hot steam escape
4Door handle ■Used to open and close the unit door
■Cracked-open position for safely opening the unit ("safety lock")
■Closing-shut function
■Antibacterial material with silver ions ("HygieniCare")
5Unit door ■Seals the oven cavity
■When opened, it can be slid backwards along the unit's side in
order to save space ("disappearing door") (optional)
6Control panel ■Used to operate the unit
■Antibacterial ("HygieniCare")
7Suction panel ■Used to distribute heat uniformly within the oven cavity
■Separates the fan compartment from the oven cavity
8Rack Used to hold standard-size bakeware
9Core temperature probe,
sous vide probe (optional)
■Used to measure the food's internal temperature
■Available as an internal version that is permanently connected
inside the oven and/or as an external version that can be tem‐
porarily connected
10 Oven cavity Is where food is placed while it is being cooked
11 Recoil hand shower
(not included in certain
units)
■Meant exclusively for rinsing the oven cavity with water
■Is retracted automatically into its holder after being used
■Antibacterial ("HygieniCare")
12 Unit feet Are height-adjustable so as to make it possible to level the unit
13 Vents at the bottom of the
unit
■Used to ventilate the unit
■Must not be blocked
2 Configuration and Functions
Installation Manual 13

No. Designation Function
14 Side panel Covers the unit's wiring compartment
15 Nameplate Used to identify the unit
16 Network connection Used to connect to a network or the cloud.
Parts and functions for special locking feature (security model only)
The figure below shows a special locking feature for enhanced security on a size 6.10 combi oven
used as an example representing all unit sizes:
No. Designation Function
1Lockable operating panel
cover
The cover can be swung in and secured onto the unit case so
that it covers the operating panel, preventing unauthorized users
from operating the combi oven.
2Padlock ■Used to secure the operating panel cover onto the unit case
■Not included
3Padlock ■Used to secure the unit door onto the unit case
■Not included
4Unit door hasp Features two different slots that can be used to lock the unit door
in order to prevent unauthorized users from opening and closing
it
Unit door action:
■If the unit door is locked using the upper slot, the door will al‐
ways be fully closed.
■If the unit door is locked using the lower slot, it will be possible
to open the door all the way to the cracked-open position
Material
The unit's inner and outer parts are made of stainless steel.
2 Configuration and Functions
Installation Manual 14

2.2 Operating Panel Layout and Functions
Control panel layout and parts in easyTouch
No. Designation Function
1Unit
ON/OFF switch
Used to turn the combi oven on and off
2USB port Used to plug in a USB stick
3Full-touch dis‐
play
The unit's central control interface
■Used by touching the icons on the full-
touch display
■Status indicators
Operating panel layout and parts in easyDial
No. Designation Function
1Unit
ON/OFF switch
Used to turn the combi oven on and off
2Control panel The unit's central control interface
■Buttons used to enter cooking programs
■Displays used to indicate configured
values
■Prompt indicators for the operator
3USB port Used to plug in a USB stick
4C-Dial Used to set cooking parameters by turn‐
ing and pressing the encoder.
2 Configuration and Functions
Installation Manual 15

3 For Your Safety
Purpose of this section
The purpose of this section is to provide you with all the information you will need in order to safely
work with/on the combi oven without putting yourself and others at risk.
Read this section very carefully!
3.1 Basic Safety Instructions
Purpose of these instructions
The purpose of these instructions is to ensure that everyone working with and on the combi oven will
be fully aware of all the risks, hazards, and safety requirements involved and will observe the warnings
in the operating manual and on the combi oven. Failure to follow these instructions may result in
death, injury, or property damage.
Customer documentation manuals
Follow the instructions below:
■Fully read the 'For Your Safety' section, as well as the section that applies to the way you will be
interacting with the combi oven.
■Keep the customer documentation manuals handy at all times so that you can look up any required
information.
■If you transfer the combi oven to a new owner, make sure to give the new owner the customer doc‐
umentation manuals as well.
Basic rules for installation
The unit must be installed in compliance with all national and state laws and regulations, with all appli‐
cable local requirements and regulations set forth by the relevant local utility companies and authori‐
ties, and with all other relevant regulations and standards.
These include, but are not limited to:
■The National Electrical Code, ANSI/NFPA 70 (current edition)
■The Canadian Electrical Code, CSA C22.2
■National Fuel Gas Code, ANSI Z223.1 /NFPA 54 (latest version)
■Natural Gas and Propane Installation Code, CSA B149.1
■The Food Code and Food Service Sanitation Manual published by the Food and Drug Administra‐
tion (FDA) (current editions)
■Latest edition of the International Plumbing Code published by the International Code Council (ICC)
or the Uniform Plumbing Code published by the International Association of Plumbing and Mechan‐
ical Officials (IAPMO)
■The standards published by the National Sanitation Foundation (NSF)
■All local fire protection and occupational health and safety regulations
Working with/on the combi oven
Follow the instructions below:
■Only people who meet all the requirements specified in this operating manual should be allowed to
use and otherwise work with/on the combi oven.
■Only use the combi oven for its intended use as described in this manual. Never, under any circum‐
stance, use the combi oven for other purposes, even if they seem obvious.
■Observe all the safety measures specified in this operating manual and on the combi oven. This
applies especially to wearing the required personal protective equipment.
■Make sure to always stay in the specified work areas when working with/on the combi oven.
■Do not make any alterations to the combi oven. This includes removing components and adding
components that have not been expressly approved. Above all, however, make sure not to disable
any safety devices or guards.
3 For Your Safety
Installation Manual 16

For more information...
Related subjects
Your Combi Oven's Intended Use 18
Warning Labels on the Combi Oven 20
Hazards posed by the unit 22
Safety Devices 25
Staff and Work Area Requirements 27
Personal protective equipment 29
3 For Your Safety
Installation Manual 17

3.2 Your Combi Oven's Intended Use
The combi oven's intended use
■The combi oven has been designed and built exclusively for cooking a variety of food in standard-
size bakeware (steam table pans, sheet pans, etc.). Steam, convection, and combi-steam (steam
superheated without pressure) are used for this purpose.
■The bakeware can be made of stainless steel, ceramic, plastic, aluminum, enameled steel, or
glass. Glass bakeware must not be damaged.
■The combi oven is intended exclusively for professional commercial use.
Limitations on use
The combi oven should not be used to heat up the following materials:
■Dry powders or granular products
■Readily flammable substances or objects with a flashpoint lower than 518 °F, such as readily flam‐
mable oils, fats, plastics, cleaning agents, and liquids containing alcohol.
■Food in sealed cans
Staff requirements
■The combi oven must be run and installed exclusively by staff meeting the specified requirements.
For the corresponding training and qualifications requirements, please refer to 'Staff and Work Area
Requirements' on page 27.
■All staff must be familiar with the risks, hazards, and rules involved in handling heavy loads.
Requirements concerning the combi oven's functional capability
■Do not operate the combi oven unless it has been properly transported, set up, installed, and
placed into operation as indicated in the installation manual and the person responsible for placing
it into operation has confirmed this.
■The combi oven should only be used if all safety devices and guards are present, working properly,
and correctly locked in place.
■All manufacturer specifications concerning how to run and service the combi oven must be ob‐
served.
■The load placed inside the combi oven must never exceed the maximum permissible loading
weight; please refer to 'Technical Data' on page 76.
Requirements concerning the combi oven's surroundings
Required combi oven surroundings
■Ambient temperature between 40°F and 95°F
■No toxic or potentially explosive atmospheres
■Do not use or store gasoline or other flammable vapors, gases, or liquids in the vicinity of a combi
oven
■Dry kitchen floor in order to reduce the risk of accidents occurring
Required installation location characteristics
■NO fire alarms or sprinkler system directly above the unit
■NO flammable materials, gases, or liquids above, on, under, or close to the unit
Limitations on use
■When used outdoors, the unit must be protected from rain and wind
■Do NOT shift or move the unit during operation
3 For Your Safety
Installation Manual 18

Prerequisites for cleaning
■Only use the cleaning agents approved by the manufacturer.
■Only use the cleaning tools specified by the manufacturer; please refer to 'Cleaning schedule' in
the operating manual.
■Do NOT use a pressure washer to clean the unit.
■Do NOT use a water jet to clean the outside of the unit. Do not use the recoil hand shower or an
external water jet for anything other than cleaning the oven cavity.
■Do NOT use bases or acids to clean the combi oven and make sure it is not exposed to acid
fumes. The only exception is when the oven cavity is descaled by an authorized service company
following the manufacturer's instructions.
3 For Your Safety
Installation Manual 19

3.3 Warning Labels on the Combi Oven
Warning label location
The figure below shows a size 6.10 electric combi oven used as an example representing all table-top
models:
Required warning labels
The following warning labels must always be clearly visible on the combi oven at the locations shown
in the previous figure.
Location Warning label Description
1 and 4 WARNING
To reduce the risk of electric shock, do not remove or open
cover. No user serviceable parts inside. Refer servicing to
qualified personnel. Disconnect power supply before servicing.
AVERTISSEMENT
Afin de réduire le risque d'électrocution, ne pas retirer ou ouvrir
le capot. Aucune pièce réparable ne se trouve à l'intérieur.
Confier le dépannage à du personnel qualifié. Débrancher l'ali‐
mentation électrique avant réparation.
2Hot steam warning
There is a risk of scalding posed by the hot steam coming out
when the unit door is opened.
2Standard model
Risk of scalding when liquid food is spilled. This hazard exists
when liquids, or food that becomes liquefied during cooking,
are placed on the upper shelf levels. Do not use shelf levels lo‐
cated above your field of view to hold liquids or food that will
become liquefied.
3 For Your Safety
Installation Manual 20