MINNESOTA RULES, CHAPTER 4714, SECTIONS 603.5.17 AND 301.2

1. DIRECT CONNECTION TO POTABLE 2. CONNECTION TO MOP SINK FAUCET 3. DIRECT CONNECTION TO POTABLE WATER SYSTEM WITH A SVB OR PVB WITH PRESSURE BLEEDING DEVICE WATER SYSTEM WITH ASSE 1055*

(WHERE PERMITTED BY THE AHJ) CHEMICAL DISPENSER (WHERE PERMITTED BY THE AHJ)

CHEMICAL DISPENSER, *ASSE 1055NO LISTING REQUIRED ASSE 1001 AVBLISTED CHEMICAL DISPENSER

PVB OR SVB MUST BE CODE COMPLIANT

MATERIAL UP TO CONNECTION SPILL TO CHEMICAL DISPENSER\

12-INCH•--L~INEI MINIMUM

~--++- --++-~-

*ASSE 1055 LISTED CHEMICAL

/ DISPENSER /

\_SHUTOFF I VALVE I * INTEGRAL MEANS OF

BACKFLOW PROTECTION • MUST NOT BE SUBJECTED LISTED TO ASSE 1055

TO BACK PRESSURE • IF SUBJECTED TO BACK

PRESSURE, AN RPZ IS REQUIRED

AHJ = AUTHORITY HAVING JURISDICTION RPZ = REDUCED-PRESSURE PRINCIPLE AVB = ATMOSPHERIC VACUUM BREAKER SVB = SPILL-PROOF VACUUM BREAKER PVB = PRESSURE VACUUM BREAKER

ii DEPARTMENT OFI LABOR AND INDUSTRY

12/17Typical Chemical Dispenser Installations Telephone: (651) 284-5063 www.dli.mn.gov/ccld/planplumbing.asp