CMP202G

Overview

The Rational CMP202G CombiMaster Plus is a floor-standing gas combi oven for commercial kitchens that need high-volume cooking across a large number of GN positions. The listed capacity is 20 x 2/1 GN, with a stated output of 300–500 meals per day. Steam cooking and dry-heat cooking support different preparation methods in the same appliance.

The available product information identifies stainless steel for the interior and exterior. A USB port provides HACCP data output and software updates. The listed dimensions are 1782 mm high, 1084 mm wide and 996 mm deep; confirm the site and service requirements against the exact unit configuration and its documentation.

Key Features

• High-volume capacity: Holds 20 x 2/1 GN containers or grids, with a stated daily meal output of 300–500.
• Combi cooking: Offers steam cooking and dry-heat cooking modes. The source lists steam cooking from 30°C to 130°C and an overall temperature range of 30°C to 300°C.
• HACCP data and updates: An integral USB port supports HACCP data output and software updates.
• Stainless-steel construction: The listed material for both the interior and exterior is stainless steel.
• Gas model: CMP202G is identified as a gas model. The supplied parts catalogue is for a CMP202G-UL configuration; check the gas type and connection details for the specific unit being considered.

Specifications

• Model: Rational CMP202G CombiMaster Plus
• Equipment type: Gas combi oven / steamer oven
• Capacity: 20 x 2/1 GN
• Meals per day: 300–500
• Temperature range: 30°C–300°C
• Steam cooking range: 30°C–130°C
• Dimensions: 1782(H) x 1084(W) x 996(D) mm
• Net weight: 354 kg
• Packed weight: 407 kg
• Material, inside and out: Stainless steel
• Mains connection listed: 230 V, 50/60 Hz, single phase
• Fuse connection listed: 1 x 16 A
• Gas supply connection listed: 3/4 in. NPT
• Water connection listed: 3/4 in. BSP male
• Water pressure listed: 1.5–6 bar
• Drain: 50 mm outside diameter
• Data connection: Integral USB port for HACCP data output and software updates
• Parts-catalogue electrical configuration: The supplied CMP202G-UL parts catalogue identifies a 2AC 208 V (240 V), 60 Hz configuration. Confirm the electrical specification on the unit’s rating information; the listed product connection and catalogue configuration are not identical.

Installation & Requirements

The listed product specifications give a 3/4 in. NPT gas supply connection, a 3/4 in. BSP male water connection, water pressure of 1.5–6 bar and a 50 mm outside-diameter drain. The listed mains connection is 230 V, 50/60 Hz, single phase, with a 1 x 16 A fuse connection. The supplied parts catalogue separately identifies a CMP202G-UL electrical configuration as 2AC 208 V (240 V), 60 Hz. These records describe different electrical details, so use the rating information and installation documentation for the exact appliance rather than assuming one configuration applies to every CMP202G.

The operating instructions say to shut off water, power and gas supplies during long stoppages, such as a non-work day. For mobile installations, the manual warns that movement must be restricted so power, water and drainage lines cannot be damaged. It also states that the appliance must be used in frost-free conditions. The sources do not provide clearance dimensions or a ventilation specification for this product.

Operation

The CombiMaster Plus instructions describe steam and dry-heat cooking. In steam mode, the manual advises that compatible foods can be cooked together when they are prepared by the same method; it gives fish, meat, vegetables, side dishes and fruit as examples. Perforated GN containers allow steam to circulate around foods such as potatoes. For rice and cereals, the manual specifies adding water at a ratio of one part grain to 1.5–2 parts water. It also recommends using two shallower GN containers rather than one deep container for collecting vegetable stock.

In dry-heat mode, the manual explains that heating elements heat the dry air in the cooking cabinet. The manual provides cooking guidance for different food groups, but the appropriate setting depends on the food and recipe. The listed 20 x 2/1 GN maximum load is 180 kg total, with a maximum of 30 kg per rack. The manual warns that exceeding the maximum load can damage the appliance.

The operating instructions say to leave the door slightly open if the appliance will be idle for a prolonged period, such as overnight. They also note that the floor-unit door is not closed tight unless its handle is vertical. If a mobile appliance is moved, take care that its power, water and drainage lines are not damaged.

Cleaning & Maintenance

The supplied CombiMaster Plus instructions call for daily cleaning, including when the appliance has been used only in steam mode. They warn that grease or food deposits can catch fire and that neglected cleaning can contribute to corrosion in the cooking cabinet. CleanJet is described as an automatic cleaning system with three programmes: a powerful clean for heavy roasting and grilling deposits, an economical programme for lighter soiling, and an interim programme intended for a shorter cleaning process. The manual advises selecting the programme to suit the level of soiling.

• Use only the appliance manufacturer’s specified cleaner and rinse-aid tabs in the CleanJet system. The manual warns that other cleaning chemicals can damage the appliance and that excessive chemical quantities can cause foaming.
• Do not put cleaning tabs into a hot cooking cabinet above 50°C.
• Clean the press-fit door gasket daily with a soft cloth and washing-up liquid or a non-abrasive rinsing agent. The manual notes that constant high cabinet temperatures of 260°C or more, high browning levels, and foods with high fat or gelatin content can accelerate gasket wear.
• Do not use scouring products, abrasive cleaners, acids or acid fumes. For exterior panels, the manual specifies mild household cleaning agents, such as dishwashing detergent, on a damp soft cloth.
• Do not use a high-pressure cleaner, steam cleaner or direct water jet on the appliance. The manual also says not to use a pressurized cleaner on the door glass; clean the panes with a soft cloth or sponge and a gentle cleaner.
• Allow hot surfaces and the door to cool before cleaning, and rinse cleaning agents away completely before heating the unit again.
• For 20 x 1/1 GN and 20 x 2/1 GN floor units, the manual says air-filter replacement must be carried out by an authorised service partner. It also states that the appliance is only protected against sprayed water when the filter and cover are assembled correctly.

For long periods out of use, leave the door slightly open and shut off the water, power and gas supplies as instructed. Inspection, maintenance and repair work must be performed by trained technicians; the manual requires the appliance to be disconnected from mains power for these tasks.

Troubleshooting

The supplied CombiMaster Plus operating instructions list several checks for common messages and operating symptoms. For a dirty-air-filter message, the instructions say to replace the filter and acknowledge the message using the cooking-time button. On floor units in the 20 x 2/1 GN size, air-filter replacement is assigned to an authorised service partner.

• Gas unit displays “CHnG PoL”: The manual identifies incorrect power-supply polarity as a possible cause. It instructs users to have permanent connection with the correct polarity carried out by an electrician.
• Gas unit continually displays “rES”: The manual lists interrupted gas supply or low gas pressure as possible causes. It says to check that the gas valve is open and have the gas supply checked if pressure is too low.
• Cooking-mode display flashes: The instructions identify an excessively hot cooking cabinet as a cause and refer to the Cool Down function to cool it.
• Drain is blocked: The manual says to remove and clean the outlet pipe at the back of the unit. It notes that blockages can occur when foods with a high fat content are cooked frequently or when the outlet-pipe drop is too shallow; it refers to the installation instructions for the correct pipe routing.
• Unit does not show a function after switch-on: The manual lists a switched-off main switch or a tripped fuse in the premises’ distribution board among the possible causes. It also says that after a prolonged period below 5°C, the cooking cabinet must be heated above 20°C and that the appliance must be used in frost-free conditions.

These checks are taken from the supplied CombiMaster Plus instructions. For repair or inspection, the manual directs users to trained technicians.

Applications

The 20 x 2/1 GN capacity and stated 300–500 meals-per-day output make the CMP202G relevant to high-volume foodservice operations such as institutional kitchens, hotels and large catering kitchens. Its steam mode supports batch cooking of compatible foods, while dry heat provides another cooking method in the same cabinet. The 180 kg maximum total load stated for a 20 x 2/1 GN appliance provides a reference for planning rack loads; the manual also sets a 30 kg maximum per rack.