CMP61G

Overview

The Rational CMP61G is a gas combi oven in the CombiMaster Plus line, with capacity for six 1/1 GN pans. It can cook using steam, hot air or a combination of the two, giving kitchens one appliance for steaming, roasting, baking and other batch-cooking tasks. The available product listing identifies the CMP61G/P version as discontinued; confirm the status and configuration of the particular unit being considered.

The supplied parts catalogue identifies the CMP61G as a Combi Master 61, 6 x 1/1 Gastronorm gas model. The CombiMaster Plus operating instructions cover several cabinet sizes, including 6 x 1/1 GN. The operating and care details below are drawn from those instructions, while the dimensions and connection figures are from the CMP61G product specifications.

Key Features

• Three manual cooking modes: steam, hot air and combination cooking.
• Six-pan capacity: accommodates 6 x 1/1 GN.
• HACCP data and software support: the listed USB port supports HACCP data output and software updates.
• Stainless-steel construction: the product listing specifies stainless steel inside and out.
• Gas-fired cooking: the CMP61G parts catalogue includes gas-burner, gas-blower and gas-valve components.

Specifications

• Model: Rational CMP61G.
• Product type: gas combi oven / combi steamer.
• Capacity: 6 x 1/1 GN.
• Listed meals per day: 30–80.
• Dimensions: 782(H) x 847(W) x 776(D) mm.
• Interior and exterior material: stainless steel.
• Net weight: 114 kg.
• Packed weight: 139 kg.
• Electrical supply shown in one product listing: 230 V, 50/60 Hz, single phase; fuse connection 1 x 16 A.
• Electrical version shown in the parts catalogue: CMP61G-UL, 1NAC 120 V, 60 Hz. Confirm the unit’s actual electrical specification from its identification plate.
• Gas supply connection: 3/4 in. NPT in the listed product specifications.
• Water connection: 3/4 in. BSP male.
• Water pressure: 1.5–6 bar.
• Drain: 50 mm OD.
• USB port: HACCP data output and software updates.

Installation & Requirements

Confirm the appliance’s electrical version before connecting it: the available CMP61G sources show both a 230 V, 50/60 Hz single-phase listing with a 1 x 16 A fuse connection and a CMP61G-UL parts-catalogue version specified as 1NAC 120 V, 60 Hz. The listed gas connection is 3/4 in. NPT. The water connection is 3/4 in. BSP male, with listed water pressure of 1.5–6 bar; the listed drain is 50 mm OD. Verify connection details against the identification plate and documentation for the specific unit.

The operating instructions state that the appliance must be used in frost-free conditions. They also note that a gas appliance displaying “CHnG PoL” may have an incorrectly polarized power supply, and that a qualified electrician should make a permanent connection with the correct polarity. The manual’s troubleshooting guidance also identifies an interrupted gas supply or low gas pressure as causes of a gas appliance displaying “rES.” The sources provided do not specify installation clearances or ventilation requirements.

Operation

Manual cooking modes are steam, hot air and combination. In steam mode, the instructions recommend using perforated GN containers for potatoes so steam can circulate. They advise that fish, meat, vegetables, side dishes and fruit can be cooked together when they are being prepared by the same method. For rice and cereals, add water at a ratio of one part grain to 1.5–2 parts water. The instructions suggest using two shallower GN containers rather than one deep container for vegetable stock, to reduce bulk and avoid heavy food layers. Dumplings should be arranged with space between them in a shallow solid GN container.

The manual gives approximate cabinet temperatures for steam cooking: soup garnishes, 75–90°C; fish, shellfish and crustaceans, 65–90°C; meat and sausages, 72–75°C; light meat, 75–85°C; dark meat, 80–90°C; poultry, 80°C; and desserts, 65–90°C. These are stated as approximate temperatures, not a substitute for recipe-specific cooking controls. For preserving fruit and vegetables, the instructions give an approximate range of 74–99°C, depending on the product and preparation; jars must not be closed.

The manual specifies a maximum load of 30 kg for the 6 x 1/1 GN appliance, with a maximum of 15 kg on each rack. Exceeding the maximum load can damage the appliance. Use heat-resistant original accessories, clean accessories before use, and leave the door slightly open when the appliance will be idle for a prolonged period. For a long stoppage, such as a non-work day, the instructions say to shut off the water, power and gas supplies.

Cleaning & Maintenance

The operating instructions require daily cleaning, including when the appliance has only been used in steam mode. Grease or food residue left in the cooking cabinet can present a fire risk. If deposits ignite, the instructions say to shut down the appliance and keep the door closed; if further extinguishing is required, disconnect power and use a fire extinguisher, never water on a fat fire.

For models equipped with CleanJet, the manual describes three cleaning programmes: CLE1 for heavy roasting and grilling deposits, with a stated duration of approximately 3 hours 30 minutes in the 6 x 1/1 GN cleaning table; CLE2 for lighter soiling, approximately 2 hours 30 minutes; and CLE3 for an interim clean without drying and rinsing, approximately 40 minutes. The manual specifies use of the manufacturer’s cleaner and rinse-aid tabs where required by the selected programme. Do not put tabs into a hot cooking cabinet above 50°C, and do not use cleaning chemicals other than those specified by the appliance manufacturer.

Clean the press-fit door gasket daily with a soft cloth and washing-up liquid; the instructions say this helps extend its service life. They warn that continuous high cabinet temperatures of 260°C or above, high browning settings and food with high fat or gelatin content can cause faster gasket wear. Do not use scouring products, abrasive cleaners, a high-pressure cleaner, a steam cleaner or a direct water jet on the appliance. Clean exterior panels with a mild household cleaning agent on a damp, soft cloth. Leave the door slightly open if the oven will be idle for a prolonged period.

Troubleshooting

• “CHnG FILt” message: the manual identifies a soiled air filter. Clean or replace it as directed and acknowledge the message using the cooking-time button.
• “CHnG PoL” on a gas appliance: the manual identifies incorrect power-supply polarity. It directs the operator to have a qualified electrician establish the correct polarity for a permanent connection.
• “rES” displayed continuously on a gas appliance: check the gas supply and gas valve. The manual also lists low gas pressure and a ventilation hood that is switched off among possible causes; it says to have the gas supply checked.
• No function after switching on: the manual lists a switched-off external main switch, a tripped premises fuse, or prolonged exposure to an ambient temperature below 5°C as possible causes. It says the appliance must be used in frost-free conditions.
• Blocked drain: the manual recommends removing and cleaning the outlet pipe at the back of the unit. It notes that blockages may follow frequent cooking of high-fat products or an outlet pipe with too little fall.
• Flashing cooking-mode display: the manual identifies an excessively hot cooking cabinet and directs the operator to use Cool Down.

For electrical, gas or other technical faults that require inspection or repair, the manual limits this work to trained technicians.

Applications

With six 1/1 GN positions and steam, hot-air and combination modes, the CMP61G can suit restaurant, hotel, institutional and catering kitchens preparing multiple portions. The manual’s examples include steaming vegetables and potatoes, cooking fish and meat, preparing poultry and desserts, and cooking compatible foods together by the same method. Its stated maximum load is 30 kg overall, subject to the 15 kg maximum per rack.