3-9
Component Identification
Operator Manual
122997-341
3.9 Heat Exchanger
Washer is equipped with a steam heat exchanger and valving sys-
tem to preheat incoming fill water, reducing normal water/solution
heat-up time (see Figure 3-10).
System is fully automatic and works during filling function of Pre-
wash, optional Acid Wash (if acid tank is not available), and Rinse
phases. Heat exchanger steam valve is energized only if tempera-
ture is below 165°F (73.8°C).
3.10 Automatic
Detergent Injection
System
Automatic Detergent Injection System includes a peristaltic pump
mounted to washer exterior. System also includes a conductivity
probe located in chamber sump.
If using alkaline detergent with injection system, alkaline detergent is
automatically injected into chamber sump during Wash phase of a
cycle.
•
Hot detergent solution from alkaline detergent tank fills sump
until required solution level is attained. Once sump is full, control
checks detergent concentration of solution in sump. Alkaline
detergent is then injected into sump until solution reaches set
concentration level. Alkaline detergent solution is monitored and
maintained at set concentration level while recirculating and
spraying over load.
If using acid detergent with injection system, acid detergent is auto-
matically injected into chamber sump during Acid Wash phase of a
cycle.
•
Hot detergent solution from acid detergent tank fills sump until
required solution level is attained. Once sump is full, control
checks detergent concentration of solution in sump. Acid
detergent is then injected into sump until solution reaches set
concentration level. Acid detergent solution is monitored and
maintained at set concentration level while recirculating and
spraying over load.
Figure 3-10. Heat Exchanger
Heat
Exchanger
Heat
Exchanger
Steam
Throtling
Valve
