Metro 8 Series, C5 8 Series Manual

IDENTIFYING YOUR CABINET

PART NUMBERING

INSTALLATION AND SET-UP

1. Check for Shipping Damage: Check the packaging and cabinet for shipping damage before and after unloading the unit, and after removing all the packaging.
2. The receiver of this product is responsible for filing freight damage claims. This equipment must be opened immediately for inspection. All visible damage must be reported to the freight company within 48 hours and must be noted on freight bill at the time of delivery.
3. Concealed damage is your responsibility — you must advise the carrier of any loss or damage within 15 days after receipt of the cabinet. If there is damage, retain the original packaging for inspectors.
4. After unpacking the cabinet, remove all tape and packing material from the inside as well as outside of the unit.
5. Any protective covers (plastic or paper sheet) on the sheet metal or clear door(s), if applicable, must also be removed before turning the cabinet on.
   
   Only factory approved service agents should attempt to service, repair or replace electrical components, wiring or the power cord.
6. The power cord can be installed to exit the back of the cabinet for wall outlets or out the top of the cabinet for ceiling power drops. To change the position of the power cord, first make sure the cabinet power switch is off and the power cord is unplugged from any electrical outlet. Remove the (7) screws holding the cabinet top in place.
   Lift the rear portion of the cabinet top and slide it away from under the front control bezel, removing it from the cabinet. Remove the (2) screws on the rear of the cabinet that hold the cord bracket in place. Rotate the power cord bracket 90° to the desired position and reattach it with the (2) screws to the back of the cabinet. Make sure the green ground wire connection and the wire nuts on the black and white wires have not loosened. Do not alter the wiring of the power cord to the cabinet. Replace the cabinet top and the (7) screws holding it in place.
   

7. Refer to the data plate located near the power cord for the electrical specifications of cabinet. With the POWER switch OFF, plug the cord into the appropriate rated, grounded receptacle. Cabinets rated at 120V 2000W must be plugged into 125VAC 20 amp receptacle and must be used on an individual branch circuit. Cabinets rated at 120V 1440W may be plugged into either a 15 amp or 20 amp receptacle. Cabinets rated at 220-240V 1681-2000W must be plugged into a 250VAC, 15 amp receptacle.
   

8. The factory setting for temperature is Fahrenheit. To change the temperature display from Fahrenheit to Celsius a jumper needs to be changed on the back of the controller circuit board. Turn the cabinet off, unplug the cabinet from the electrical supply and remove the top of the cabinet (refer to step #6). See the control wiring diagram below for the location of jumper JP5. For Fahrenheit control, the jumper is on the lower two pins. For Centigrade control, move the jumper from the lower two pins to the upper two pins. After changing the jumper, replace the top, plug the cabinet in, turn the cabinet on andadjust the temperature and low temperature alarm settings for the new units (°C or °F) of temperature selected.
9. Your C5 cabinet is designed to operate next to walls and other kitchen equipment. However, the greater the clearance around the sides and the top of the cabinet, the cooler the electrical components will operate. This may result in a longer life expectancy for the electrical components.
   

Do not allow combustible materials to be stored or accumulate on, under or next to the cabinet. Do not block any ventilation louvers or slots.

SLIDE POSITION to MAXIMIZE 3" PAN CAPACITY OF UNIVERSAL SLIDES

Slides sold in pairs. For additional pair of wire slides, order C5-USLIDEPR-C for Chrome or C5-USLIDEPR-S for Stainless Steel. To order individual universal uprights only, see item #'s 29A, 29B, 29C.

CORRECT ORIENTATION OF LIP LOADED SLIDE RACKS

REVERSING THE DOORS

Tip Hazard: On Pass-Thru cabinets that include any clear doors, when field reversing, the front and back doors must be hinged from opposite sides of the cabinet. See illustration below.

After reversing the door hinging direction, labels are now upside down. You may contact InterMetro for a new set of labels, part number RPC5-DRLBL, at no charge, to be placed in the proper orientation.

C5 doors are normally hinged on the right hand side at the factory. If the cabinet has been in operation, allow the door to cool before reversing the door hinging direction. Note: When finished, all holes will have screws in them and there will be no exposed holes left in the cabinet.

1. If the cabinet has Dutch Doors, note which is the top and which is the bottom door. Open the door, lift it off the cabinet hinges and set it aside noting which is the top and bottom of the door.
2. On the cabinet, remove the latch strike plate and hinges and install them on the other side of the cabinet. On the door, remove the hinge covers to access the mounting screws. Remove the hinges.
3. Rotate the door so the previous bottom is now the top and install the hinges. On Dutch Doors, do not remove the handles, the top door becomes the bottom and the bottom door the top. On single door units, rotate the handles 180° and reinstall.
4. On the cabinet mounted hinges, lift the white bushing and rotate it 180° and push it down to reseat it on the hinge pin.
5. Install the door onto the cabinet hinges and check to make sure the door latches properly and the gaskets are in compression.

PRODUCT FEATURES

OPERATING INSTRUCTIONS

Power-Up & Pre-Heat

• When the cabinet is switched on, the controller displays "Set Pnt" followed by the current temperature set point. The temperature display will begin to blink, indicating that the cabinet is pre-heating. The display will stop blinking after the temperature set point is reached.
• Factory preset is 160°F (71°C).
• Turn "Temperature" knob at any time to change the desired setting.
• Press the "Recall Set Points" button at any time to display the current temperature setting.
  
  1. Allow the cabinet to pre-heat without food for 30 minutes to an hour. The time required to reach the temperature set point is dependent on the set point, the size of the cabinet, the door type (solid or clear) and the temperature of the room the cabinet is in. Factory preset is 160°F (71°C).
     
     Follow all food safety guidelines. Pre-heat the cabinet to the desired temperature before putting cooked, hot food into the cabinet. This is not a re-thermalization cabinet. Food must be at the appropriate temperature before being placed into this cabinet.
     Low Temperature Alarm
     • The Cabinet is equipped with a low temperature alarm system that will alert you if the cabinet falls below the alarm set pointfor more than 5 minutes during operation (unless the low temperature alarm has been disabled — see below). The TEMPERATURE display will begin to blink "L0" alternating with the current temperature. An audible alarm will also sound 3 times every 10 seconds (See "Sound On and Off" below for more information on the audio alarm)
     • Factory preset for the low temperature alarm is 140°F (60°C).
     • To check the existing low temperature alarm set point, press and release the LOW TEMP ALARM button.
     • To change the low temperature alarm set point, press and hold the LOW TEMP ALARM button while turning the TEMPERATURE knob.
     • If the cabinet's temperature set point is set below the low temperature alarm set point, the alarm is disabled.
     • The low temperature alarm is also disabled during pre-heat.
       

2. Your C5 8 Series cabinet is capable of creating hot humid air. As you operate the cabinet and open and close the door(s), condensation may form on the inside surfaces of the cabinet. Some dripping of water may occur to the outside of the cabinet particularly at the door seals. Water may also drip off opened doors onto the floor.
   
   Water dripping onto the floor from open doors can be a slip hazard.
   
   Some surfaces, water and escaping vapor can be hot enough to burn. Use caution when opening doors and working in and around this cabinet.
3. The cabinet control will "remember" its setting when the cabinet is turned off. Therefore, when the unit is turned on the setting will be the same as it was during the previous use.
   
4. A red indicator light below the digital display indicates when the temperature heater element is energized. As the control setting is adjusted, it may take a few moments for the status of the indicator light to reflect the new control setting and cabinet condition depending on when in the control cycle the setting is changed.
   
5. If humidity is required, fill the water pan in the bottom of the cabinet. Potable (suitable for drinking) water should be used.
   
6. To remove the water from the water pan, allow the cabinet and water to cool and remove the water pan.
   Note: When turning the cabinet off at the end of the work day, it is recommended to leave the door(s) open to prevent heat and condensation build up within the cabinet.
   Note: If the cabinet is not going to be used for an extended period of time, all water should be removed from the water pan and the cabinet completely cleaned and dried out.

CARE & MAINTENANCE

Cleaning The Cabinet

Unplug the cabinet before cleaning or servicing. Do not wash the cabinet with a water jet or high pressure water.

Do not spray or pour water into the control enclosure. To clean the cabinet, wipe with a damp cloth and dry with a towel. Use only cleaning agents approved for stainless steel or aluminum (depending on your cabinet construction).

Do not use cleaners with chlorides or phosphates as they may cause damage to stainless steel. Do not use strong alkalis on aluminum as they may discolor it.

1. Use cleaners in the proper concentrations. Follow the manufacturer's directions for the cleaning product used. After using any cleaning products, thoroughly rinse all surfaces to remove all residue.
2. Use a damp cloth or sponge. Mild soap suitable for stainless steel and aluminum is acceptable. Dry with a clean towel. Wipe up spills as soon as possible and regularly clean the cabinet to avoid staining and difficult to clean conditions.
   If the control knob needs to be removed for cleaning, use a ⁵/₆₄" Allen key to loosen the set screw on the control knob. Remove the knob, clean the control face and/or knob and replace the knob and tighten the set screw.

BASIC TROUBLESHOOTING

Only factory approved service agents should attempt to service, repair or replace electrical components, wiring or power cord.

Controls do not work (no display or indicator light)

1. Check that the cabinet is plugged in.
2. Check that the outlet has power.
3. Check that the power switch is in the "On" position.
4. Check the cabinet wiring from the power cord to the power switch and to the controller.
5. Check that the fuse on the back of the controller is not blown.
6. Controller is faulty.

Controller temperature display does not change

(displays a constant value approximately equal to the minimum or maximum of the temperature control range, 70°F (21°C) or 200°F (93°C):

1. The temperature sensor and controller are not communicating:
   1. Temperature sensor wires are broken or disconnected from the controller.
   2. Controller needs to be replaced.
   3. Temperature sensor needs to be replaced.

Temperature too hot

1. Set point is too high. Turn temperature set point down to the desired temperature.
2. During initial pre-heat some over temperature may occur but will quickly return to the set point.
3. If displayed temperature exceeds 220°F (104°C):
   1. Blower wiring is faulty or disconnected.
   2. Blower needs replacing.
   3. The thermostat may have failed and the thermal overload device is controlling the temperature. Stop using the cabinet immediately and contact a factory approved service agent.

Temperature too low

1. The cabinet may still be in pre-heat or recovering from a door being opened.
2. Set point is too low. Turn temperature set point up to the desired temperature.
3. A door is not closed or sealing properly.
4. Blower is not circulating air:
   1. Blower wiring is faulty or disconnected.
   2. Blower needs replacing.

No heat generated

1. If the heat indicator light is on but the cabinet does not draw approximately 16 amps for 120V 2000W units; 12 amps for 120V 1440W units; or 8 or 9 amps for 220-240V units:
   1. Air heater element may be faulty.
   2. The wiring to the air heater element may be faulty or disconnected.
   3. The controller (air heater relay) may be faulty.
2. If the heat indicator light does not come on, the controller may be faulty.

Displays blink "LO" and Alarm beeps (if "Sound" is on):

1. If the temperature display alternately blinks the current cabinet temperature and then "LO", refer to steps 4 and 5.

Cabinet trips GFCI (ground fault circuit interrupter):

A GFCI receptacle protects against "ground faults" whenever an electrical product is plugged into the GFCI outlet by constantly monitoring the electricity for any loss of current. If the current flowing out of the receptacle differs by a small amount from that returning, the GFCI quickly switches off power to that circuit. The GFCI interrupts power extremely fast to minimize the possibility of an electric shock.

1. The heater element may absorb some moisture into its casing and insulation during shipment or during long periods of not being used (such as during the summer in a closed school kitchen). Plug the cabinet (without water in the water pan) into a non-GFCI outlet, set the temperature to 200°F (93°C) and let it run for 30-60 minutes to dry out any moisture the element may have absorbed. (If it trips the standard circuit breaker call factory approved service agent.) After drying the element, plug the cabinet into the GFCI outlet; the cabinet should run without tripping the GFCI.
2. If the cabinet still trips the GFCI, call a factory approved service agent.
   Note: The temperature control does not require field calibration.

SERVICE and REPLACEMENT PARTS

C5 8 SERIES REPLACEMENT PARTS — ELECTRICAL
Confirm the cabinet electrical rating before ordering components.

Only factory approved service agents should attempt to service, repair or replace electrical components, wiring or power cord.
To access the controller area, remove the (7) screws holding the cabinet top in place. Lift the rear portion of the cabinet top and slide it away from under the front control bezel, removing it from the cabinet. After servicing, replace the cabinet top and the (7) screws holding it in place.

C5 8 SERIES REPLACEMENT PARTS — CABINET BODY

Replacement Parts Diagram

C5 8 Series Wiring Diagram

Only factory approved service agents should attempt to service, repair or replace electrical components, wiring or power cord.