User Guide
– 5 –
Plumbing Connections
  Plumbing connections must comply with applicable sanitary, 
safety and plumbing codes.
P1 Water Drain  — 1" NPT female piped to an open drain. No solid connection.  
Output is 140°F maximum at 5 GPM.
P4 Hot Water Supply — 
3
/4" male hose bib tting.  0.5 GPM, 25 – 50 psi. For proper 
operation, use only HOT water, 120°F – 140°F.   For installations at the end of a long 
hot water line, a second pre-rinse may be required to prime the line.   Contact Hobart 
service to make any needed parameter changes to Cleaning cycle programming.
The sensors on the machine need to see a small amount of minerals in the water 
in order to work properly.  But, excessive minerals may cause lime scale build-up.  
Recommended  water  hardness,  4  –  6  grains.    Minimum  conductivity  required,  
30 MICROMHOS/CM. 
Fig. 2
E1 ELECTRICAL
P1 WATER DRAIN
P2 CHEMICAL SUPPLY
P3 GREASE DRAIN
P4 HOT WATER SUPPLY










