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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