HOBART CH20 (01) PDF MANUAL

HOBART CH20 (01) PDF SUMMARY:

What are the features of the CH20 and CH22 hotplates?

The CH20 has two self-cleaning high-speed Calrod® heating elements which boil 4 quarts of room temperature water in less than 10 minutes. The CH22 has 2 solid French hotplates which boil 96 oz of water in 10½ minutes. The hotplate top surface is nickel and chrome-plated cold-rolled steel. Both models have infinite heat switches to control each heating unit, a slide-out drip tray for easy cleaning, 4-inch legs at each corner with leveling adjustments, and a stainless body.

How do I install the CH20 or CH22 hotplate?

The CH20 or CH22 hotplate may be permanently installed to the countertop by means of rigid or flexible conduit with the back flush against the wall. For a portable-type installation, a cord and plug set (Model CX321) is suitable and may be used for either the 208 or 240 volt supply. Check the voltage and phase at the power line to ensure it is the same as stamped on the equipment nameplate.

How do I attach the legs to the hotplate?

Place the hotplate on its side to make the bottom accessible for attaching the four legs. There are no flat surfaces on the leg stem for a wrench to clamp against, so the hands must be used to fasten the legs. To get more leverage or grip on the leg stem, wrap a damp cloth around it when tightening. Leg attachment is made by threading the exposed leg bolt into a threaded hole in the bottom near one of the corners. Continue turning the leg stem until the leg top is pressed very tightly against the body bottom surface. Fasten each one of the four legs the same way. Now set the hotplate upon its legs and proceed to level device by right or left wrench adjustment. Prevent the leg stem from turning with one hand while making the adjustment.

What are the electrical specifications for the CH20 and CH22 hotplates?

Both the CH20 and CH22 can connect to a single-phase power source or !-phase of a 3-phase system and are rated for 208 or 240 volts at 50/60 Hz AC.

What is the installation warning for the hotplates?

Combustible products of any kind must not be put in contact with the heating units.

How do I install a cord and plug set?

1. Remove the back cover plate to expose the built-in terminal box and device line leads.
2. Select a suitable knockout at the rear or bottom of the terminal box.
3. Attach the cord and plug and connect as shown on the wiring diagram. Connect the ground wire of the cord set to the grounding lug in the outlet box.
4. Push excess wire into the terminal box and replace the cover plate.

What are the warnings for rigid conduit installation?

Electrical and grounding connections must comply with the applicable portions of the National Electrical Code and/or other local electrical codes. Disconnect the electrical power supply and place a tag at the disconnect switch indicating that you are working on the circuit.

How do I perform a rigid conduit installation?

1. Lift the rear heating unit for access to the terminal box at the rear of the hotplate.
2. Remove the two fasteners holding the rear baffle in place and slide the baffle forward to expose the terminal box cover.
3. Remove the one fastener holding the terminal box cover in place.
4. Slide the cover upward to expose the knockouts and install the line connections. Use care not to disturb the device wiring.
5. For supply connections, use No. 8 AWG or larger wires suitable for at least 75C (167F).
6. Replace the cover, fastener, baffle, and two baffle fasteners.

What should I check regarding the power line?

Neither hotplate contains fuses or circuit breakers. Be sure the power line is capable of handling the additional load and protected by fuses of the proper rating.

How do I operate the hotplate?

Turn both infinite heat switches to any desired position. The heating units will energize immediately. In the OFF position of each switch, all power is removed from the heating units. When the infinite heat switch is set between LO and 6 on the dial, the heating unit operated by the switch will cycle on and off independently of what is set on the unit. For a low cooking temperature requirement, set the switch dial to LO or 2. If a higher cooking temperature is wanted turn the dial to a larger number. The larger the dial number setting except when on HI, the longer the time the unit remains energized at full wattage output before it cycles off. When the switch is set on HI, the heating unit remains energized continuously at full wattage output for as long as the power remains on.

How do I clean the hotplate?

1. Turn the power OFF.
2. Raise the heating units and remove the heat reflector pans and wash them with soap and water.
3. Remove and wash the drip tray located in the bottom of the hotplate.
4. Use a damp cloth soaked with a detergent and hot water.
5. Rinse with a damp cloth and dry with a soft cloth.
6. To clean the switch knobs, pull outward to remove them from the shafts.
7. Wash the knobs with mild soap and water, rinse, and dry with a soft cloth.
8. Do not use abrasive cleaners on the plastic surfaces.

What do I do if the unit does not heat?

If the unit does not heat when both infinite heat switches are turned from the OFF position, check for a poor plug connection at the power outlet (if used), a burned-out fuse in the supply circuit, or an open switch in the power line. When one hotplate only is inoperative, the trouble may be in the infinite heat switch or heating element – contact a service man.