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0901133 Rev: A (11/13) 

Page 11 of 20 

DRAIN MODE 

Drain mode counts the number of times the drain 
solenoid is energized during the machine’s operating 
cycle, and chemicals are injected by their programmed 
(assigned) drain number. 

Activation of the ―load count pump‖ ends the current 
formula and prepares the OP-Pro to run the next 
washcycle. Pump 7 is the default load count pump when 
using drain mode. For each formula, pump 7 should be 
assigned to the final drain number. This ensures the 
formula is properly ended, even on machines where the 
drain signal occurs again after the last chemical 
injection. 

 

Connect the machine’s drain signal to pump 1 input 
on the signal interface module (SIB). 

 

Program chemical formulas according to the 
instructions on pages 8 – 9. Pumps can have a 
second injection ―level‖ if required, however the 
second level must be assigned to a later drain 
number than the first. 

 

Program the flush time (if manifold is used). 

 

During operation, the upper display will show the 
current drain count. This is signified by the letter ―d‖ 
as the first character of the display. 

Enabling or disabling drain mode: 

(1)  Enter the access code if you do not already have 

access to the system. 

(2)  Select pump 5, and formula A. 

(3)  Use 

 to choose 000 (disable) or 001 (enable) on 

the 3-digit display, then ENTER. 
 
 
 
 
 
 
 
 
 

(4)  The display will flash briefly, indicating that the 

enable/disable status was accepted. 

 

Assigning drain numbers: 

(1)  Enter the access code if you do not already have 

access to the system. 

(2)  Press MODE until both the pump time and delay 

time LEDs are flashing. 

(3)  Select the formula and pump. 

(4)  Use 

/

 to input the drain number, or to change an 

existing drain number (max is 15). Multiple pumps 
can run on any drain occurrence, however you may 
wish to use delay times to ―stagger‖ the pumps 
operation. 

(5)  Press ENTER and the display will flash briefly, 

indicating that the drain number was accepted. 

(6)  Repeat steps 3 – 6 for all formulas and pumps that 

will be used. 

Inverting drain mode signal: 

The washer’s drain mechanism will typically energize 
the solenoid to close the drain and de-energize to open 
the drain. This type of drain activation is standard on 
almost every Wascomat, Milnor and Uni-Mac washer, 
however Drain Mode can be set to recognize an 
―inverted‖ signal (one that energizes to open the drain) if 
necessary. 

(1)  Enter the access code if you do not already have 

access to the system. 

(2)  Select pump 6, and formula A. 

(3)  Use 

 to choose 000 (normal) or 001 (inverted) on 

the 3-digit display, then ENTER. 
 
 
 
 
 
 
 
 
 

(4)  The display will flash briefly, indicating that the 

normal/inverted status was accepted. 

000 

DISABLE 

ENABLE 

001 

000 

NORMAL 

INVERTED 

001 

Summary of Contents for Knight On-Premise Pro

Page 1: ...0901133 Rev A 11 13 Page 1 of 20 On Premise Pro Instruction Manual...

Page 2: ...C 2 0 A 50 60 Hz 6 Indoor use only 7 Temperature 5 C to 40 C 8 Mains supply voltage fluctuations are not to exceed 10 percent of the nominal supply voltage Electrical Ratings Chemical dispensing pumps...

Page 3: ...ump F on all formulas to set flush time 5 Press formula SELECT until desired formula number appears 6 Use to input the pump time or flush time or delay time in seconds 7 Press ENTER the display will f...

Page 4: ...ected by voltage spikes or power outages Optional Drain Mode and Relay Mode Optional Auto Formula Select Formula and level enable disable capability Flush mode can be used with all modes of operation...

Page 5: ...voltage cables do not require conduit 5 Install and wire the Signal Interface Module SIB per notes to the right 6 For each pump cut the suction tube to length and insert one end into the appropriate...

Page 6: ...r contact at the flow switch terminals see wiring diagram to verify proper flush If a flow switch is not used jumper JP1 should be in place A flush error happens when no contact is detected switch or...

Page 7: ...tinue where you left off Entering the access code Do not access the system while pumps are being signaled from the washer Use whichever of the following two procedures that applies If the system is ne...

Page 8: ...ump time LED is flashing If the delay time LED is flashing press MODE to choose pump time 4 Choose the desired pump and formula using their respective SELECT buttons 5 Position your container below th...

Page 9: ...y advance the numbers 6 Press ENTER and the display will flash briefly indicating that the delay time was accepted NOTE During delay time countdown will display indicating a countdown in one minute in...

Page 10: ...this is normal 4 After a few seconds the pump time LED will return indicating the pump number was accepted 5 If the pump time LED returns before the desired pump has been chosen repeat steps 2 3 To vi...

Page 11: ...ula A 3 Use to choose 000 disable or 001 enable on the 3 digit display then ENTER 4 The display will flash briefly indicating that the enable disable status was accepted Assigning drain numbers 1 Ente...

Page 12: ...A new dispenser from the factory will already have these pumps disabled Also when clearing the memory pumps 7 8 are disabled by default 1 Enter the access code if you do not already have access to th...

Page 13: ...ontrol This makes the remote control more user friendly to the operators and eliminates the chance of missed chemical injections due to inadvertently choosing an unused formula By default for a new di...

Page 14: ...turned off disabled 4 The display will flash briefly indicating that the auto formula select time was accepted NOTE If AFS is enabled the system is limited to 5 chemical pumps as pump 6 is dedicated...

Page 15: ...se pump motor wires Check for voltage from circuit board to motor Check for mechanical binding of moving parts Flush errors keep occurring Check to see if a flush manifold is used if so is it operatin...

Page 16: ...Page 16 of 20 0901133 Rev A 11 13 SYSTEM WIRING DIAGRAM...

Page 17: ...0901133 Rev A 11 13 Page 17 of 20 SYSTEM PARTS DIAGRAM...

Page 18: ...Page 18 of 20 0901133 Rev A 11 13 SYSTEM PARTS DIAGRAM...

Page 19: ...0901133 Rev A 11 13 Page 19 of 20...

Page 20: ...tory authorized inspection Bearings and pump seals or rubber and synthetic rubber parts such as O rings diaphragms squeeze tubing and gaskets are considered expendable and are not covered under warran...

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