Hoshizaki F-2000MLH, Service Manual

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3. ADJUSTMENT OF EVAPORATOR PRESSURE REGULATOR (E.P.R) -
F-2000MLH/-C ONLY
The Evaporator Pressure Regulator (E.P.R) prevents the evaporator pressure from
dropping below the pressure setting of 22 PSIG (R-404A model (-F type). Adjust the setting,
if necessary, according to the following instructions:
1) Remove the Cap from the E.P.R. Access Valve, and connect a pressure gauge (The
E.P.R. needs no adjustment if the pressure gauge shows 22 PSIG for F-2000MLH/-C.)
2) Remove the Cover from the E.P.R., and rotate the Adjustment Screw by a hexagon
wrench until the pressure gauge shows 22 PSIG (F-2000MLH/-C). Rotate clockwise to
increase the pressure setting, and rotate counterclockwise to decrease the pressure
setting.