Specifications

Part Number STH12 9/10 131
Component Check Procedures
Test Procedures: MPC 64A Timer/
Selection Pad
MPC 64 A Timers can be placed in the test mode as
follows:
1. Flip power switch off.
2. While depressing “CAL” button on selection pad,
flip power switch back on.
3. Release “CAL” button when red LED comes on.
Faucets will energize for 2 seconds, each in
sequence, starting with faucet #1 (far left).
Timer is now in the Test Mode. To stop faucets use
one of two procedures:
A. Turn power switch off. This will save the
programmed times, Use this procedure for
testing or sanitizing.
B. Push “CAL” button. All programmed times for
all stations will go to factory default times.
Default times are:
Size #1 1 - 1.5 seconds
Size #2 4 - 4.5 seconds
Size #3 6 - 6.5 seconds
Size #4 8 - 8.5 seconds
PIN IDENTIFICATION
J-7 = Valve 1 J-10 = Valve 4
J-8 = Valve 2 J-11 = Valve 5
J-9 = Valve 3 J-12 = Valve 6
Check for 24 Volts at each solenoid cable connector,
J-7 through J-12, with cables removed.
With cables on, check for 24 VAC across solenoids at
dispensing valve while dispensing respective valve.
J-15 Power to Valves 1,2,3.
J-20 Power to Valves 4,5,6 and microprocessor.
Loss of power at J-15 results on loss of power to
valves 1,2,3.
Loss of power at J-20 results on loss of power to
microprocessor — no valves will work.