VII. SERVICE & MAINTENANCE INFORMATION (cont’d)
VII. e - FRONT WORK SURFACE REMOVAL :
To facilitate transport through narrow doorways all Jumbo Rail VPS models are supplied standard with a removable front work surface (see figure 10).
WARNING: Excess weight hazard. Use two or more people and to remove and reinstall. Failure to do so can result in damage to the unit and/or injury.
1)Remove the side cover (held in place by two screws) from each side.
2)Remove the screw from each side.
3)Remove the screws under the work surface, above the louver and hinged doors.
4)Support the work surface securely then remove the screws from the vertical lip at the rear of the work surface.
5)Lift the work surface up and away from the cabinet. Reinstall in reverse order and seal the perimeter with silicone.
VII. f - DEFROST TIMER:
In normal operation the defrost timer only needs to be set on startup and after each power loss. Rotate the small knob (near the outer edge of the large dial) clockwise until the correct time of day on the large dial is opposite the TIME pointer. Pins that initiate each defrost cycle are set at the factory at 2am, 6am, 10am, 2pm and 8pm. If your operation requires different defrost times simply relocate one or more of the pins (around the outer edge of the large dial) to the appropriate time. Leave four hours minimum time between pins. A minimum of five (5) defrost cycles are required per day. Defrost is terminated by a non- adjustable
Remove the stainless steel side brackets from each side.
Fig. 10
Removing the
Work Surface
Lift work surface up and away from unit when all screws are removed.
Fig. 11
Defrost Timer
VII. g - TEMPERATURE CONTROL:
The electronic temperature control is set at the factory and needs no adjustment in normal use. Reprogramming is not necessary even if the power is interrupted. If the control has to be replaced, verify that the settings match the original factory settings. See below for factory settings.
The control is equipped with a lockout switch to prevent unauthorized tampering. VPS units are shipped from the factory with this switch in the LOCK position, with the keypad disabled.
To check or change the settings:
Turn the power switch OFF then loosen the 4 screws that hold the control cover in place. The lockout switch is located on the inside cover about two inches above the bottom (see figure 12). To enable the keypad, slide the switch to the right (UNLOCK) position. Replace the control cover and turn the power switch ON. Always disable the keypad by moving the switch to left (LOCK) position after checking the settings.
