Hobart FT900S Dishwasher User Manual


 
– 4 –
TANK FILLING
Assure proper water hardness. Recommended water hardness is 3 grains or less per gallon. Higher
hardness may cause excessive formation of lime scale. Chlorides must not exceed 50 ppm.
All water (and steam, if equipped) supply valves must be opened and the electric supply turned on before
the machine will function.
Close all drains and doors. The drain handles are located near the oor at the front of each tank. Rotate
drain handles clockwise to the vertical position. The prewash tank, powerwash tank and power rinse tank
(when equipped) and their respective drain handles are located towards the load end of the machine from
the control box. The drain handle for the dual rinse tank (when equipped) is located towards the unload
end of the machine from the control box.
Press the Power key on the keypad located on the lid of the control box (Fig. 8). The display will light up.
Fig. 8
If door(s) are not closed Door(s) Open displays. If all doors are closed, Tanks Filling ... displays and tanks
begin to ll. All tanks will be full in approximately 10 to 15 minutes. NOTE: Opening a door during the
ll cycle shuts off the ll valves (Door(s) Open displays). Close the door to resume the ll cycle (Tanks
Filling ... displays).
When all tanks are full the ll valves will automatically shut off and the water temperatures display for
each tank. The full time Auto-Fill feature adds water to the tanks to maintain proper water levels during
operation.
After the water level raises the lower oat in each tank, the wash, rinse and dual rinse tanks, if equipped,
begin to heat. If the water level drops below the lower oat in any tank, the heat shuts off and lling resumes
on the affected tank(s). When the water level reaches the lower oat, heating resumes while the tank(s)
continue(s) lling until the proper water level is reached. If the water level drops below the lower oat in
the prewash tank, lling resumes until the water level reaches the upper oat.
NOTE: A red light is provided on machines with an electric Blower-
Dryer. The operator is alerted by the lighted red light (Fig. 9) that
the over-temperature thermostat has been activated. If light stays on
for more than 5 minutes, the operator should TURN THE MACHINE
OFF, DISCONNECT POWER TO THE MACHINE, AND HAVE IT
SERVICED BY A QUALIFIED SERVICE TECHNICIAN.
Fig. 9
Electric Blower-Dryer, does not
have an ON / OFF Switch, but does
have a Red Indicator Light
If red indicator lights:
• Disconnect from power supply
• Have unit serviced by qualified
technician
RED
Light Only
! WARNING