Cornelius Switch 569000689 User Manual

IMI CORNELIUS INC g One Cornelius Place g Anoka, MN 55303-6234  
Telephone (800) 238-3600 Facsimile (800) 535–4231  
INSTALLATION INSTRUCTIONS FOR  
PRESSURE SWITCH PCL KIT (569000689)  
Table 1. Loose-Shipped Parts  
Item  
No.  
Part No.  
Name  
Qty.  
2
1
2
3
4
5
6
7
8
9
560002361  
560004158  
560002360  
560006424  
560005312  
560002318  
560006985  
560002388  
560002389  
Board Circ Prod Delivery  
Chip Micro EPROM Main  
Board Circ Oper Interface  
Switch Press Syr 30-37 PSI  
Fitg T 7/16-20 x 1/8-FPT  
Fitg Push PI4512F4S .375 x .25  
Harn Adaptor Press Switch  
Tube Prod .250 I.D. x 22-1/2”  
Tube Prod .250 I.D. x 20-1/2”  
Clip Flow Bend .375 O.D. Tube  
Clip Lock .375 O.D. Push-in Fitg  
Tie Cable  
1
1
2
2
4
2
1
1
10 560002339  
11 4417  
2
4
12 690945000  
2
1. Obtain wakeup time, sleep time, defrost times, and viscosity settings from current setup.  
2. Disconnect power (unit may have to be pulled from wall to access electrical outlet).  
3. Shut off syrup supply by shutting down CO . Bleed CO from inlets to BIB pumps.  
2
2
4. Remove left side, front access and rear panel.  
5. Remove No. 1 cylinder syrup inlet line and No. 1 syrup flow sensor assembly (leftmost if facing unit).  
6. Install new syrup inlet line (2 flavor OC unit), or connect existing line with tubing elbow and cable tie (2 and  
4 flavor standing units) to pressure switch assembly (see Figure 1). Assemble locks onto pressure switch  
assembly and reconnect electrical harness paying close attention to maintaining wiring integrity. Switch is  
supplied with adapter harness to retrofit existing wiring (wires to be attached to “C” common and “NC” nor-  
mally closed. Note: some parts will be left over.  
7. Repeat steps 5 and 6 for No. 2, 3 and 4 syrup inlet lines and syrup flow sensor assemblies.  
8. Remove existing main control board EPROM chip using an EPROM extraction tool. Install EPROM taking  
great care not to misalign pins or cause damage to chip. Note: wearing ground strap is stronly recom-  
mended to protect board from electrostatic discharge. Take care to put each connector back in its  
proper location.  
9. Remove existing No. 1 cylinder product delivery board. Install new product delivery board (using ground  
strap). Take care to put each connector back in its proper location.  
10. Repeat step 9 for product delivery boards No. 2, 3 and 4.  
569000338  
Revised: October 9, 2003  
January 23, 2002  
Page 1 of 2  
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