Nova LM-700 Theory of Operation, Automatic Mode, Push Button Mode, Occurrence Mode, Relay Mode

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THEORY OF

OPERATION

MECHANICAL

INSTALLATION

ELECTRICAL

INSTALLATION

PROGRAMMING

USER MODE

OPERATION

TROUBLESHOOTING

SPARE PARTS

LISTING

MAINTENANCE & SPECIFICATIONS

INDEX

1.0 THEORY OF OPERATION

The Mercury offers four operating modes for maximum flexibility in small OPL and Top Load washer laundry applications. Automatic Formula Selection may be used in all modes whenever a spare washer supply signal output is available that may be programmed to the second. The following sections describe each mode’s unique operation specifications in detail.

1.1Automatic Mode

Automatic Mode is a basic mode of operation similar to Timer Mode in our Eclipse and Orion dispensers. Each trigger signal input number matches the corresponding pump number (i.e. trigger 1 = pump 1, trigger 2 = pump 2, etc.). Pumps can be delayed after trigger signals for occasions where pump delays are required to prevent dosing on dry linen, etc. Pump delay times are programmable in seconds.

Pumps 1 and 2 have two product levels, A and B. The A level dispenses on the first occurrence of the trigger signal in a formula. The B level dispenses on the second occurrence of the same trigger signal within the same formula. Pump 3 only has one product level.

The Pump Lockout feature, when turned on, prevents any unwanted pump activations due to false signals from washers that send noisy or multiple output supply signals.

Loads are counted each time the highest pump number with an amount programmed (unique to each formula) is run. The Pump Lockout timer and (pumps 1 and 2) A/B levels will be reset 5 minutes after the count pump runs or the Lockout period ends, whichever comes first. If the load needs to be restarted for any reason, the dispenser wash formula may be terminated early by pressing the Enter key for two seconds.

1.2Push Button Mode

Push Button Mode is intended for manual operation where the machine operator selects a formula and presses the Enter key to start and run the dispenser wash formula. A dispenser wash formula consists of up to 5 programmed pump amounts (1a, 1b, 2a, 2b, and 3 are the five programmable pump amounts from three physical pumps). Pump Delay times (pro- grammed in minutes) stagger the programmed pump doses throughout the wash load.

The Pump Lockout feature (programmed in minutes) prevents the machine operator from starting multiple doses in the same wash load. If the load needs to be restarted, the dispenser wash formula may be terminated early by pressing the Enter key for two

seconds. Loads are counted each time the highest pump number with a programmed amount is run.

1.3Occurrence Mode

Occurrence Mode paces the dosing of products off the washer fill valves by counting each time the machine fills to identify the occurrence-sequence of machine steps. This mode of operation is ideally suited for machines with no chemical supply signal outputs, such as domestic style top load washers.

While all three of the trigger signal inputs are active and may be used, typically only two will be used. Typical trigger signal wiring would be one of the available trigger signal inputs wired to one fill valve, and another trigger signal input to the other fill valve (typically the hot and cold fill valves). Since the dispenser responds to any of the trigger inputs, it does not matter which input goes to which fill valve.

The dispenser counts the machine fill occurrences and runs pumps based on an assignment of the pumps to the machine step sequence.

Note:

Careful attention must be paid when

 

programming the signal Filter

 

Duration time to account for any

 

spurious fills resulting from level

 

and/or temperature controls in the

 

washer. For more information, please

 

see section 4.8, Filter Duration.

A dispenser wash formula consists of up to 5 programmed pump amounts (1a, 1b, 2a, 2b, and 3 are the five programmable pump amounts from three physical pumps). Any of these available amounts may be programmed to any (up to 9) machine step.

The Lockout feature is available to be sure that each programmed pump amount only runs one time per dispenser wash formula. The dispenser wash formula is terminated 5 minutes after the last pump pro- grammed in a sequence runs, or the Lockout period (when on) ends, whichever comes first. If the load needs to be restarted for any reason, the dispenser wash formula may be terminated early by pressing the Enter key for two seconds.

1.4Relay Mode

Relay Mode runs pumps for the duration of washing machine supply signals. This mode is typically used on fully programmable microprocessor controlled washing machines where the installer opts to control the dispensing equipment from the washing machine control system instead of the dispenser’s control system. The load counter increments each time pump one is run in Relay Mode.

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P/N 20-07121-00 Rev. C

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Contents Mercury TL Laundry Occurrence Mode Automatic ModePush Button Mode Relay ModeMechanical Installation Trigger Signal Wiring Electrical InstallationMain Power Auto Formula Select WiringUser Mode Operation User Mode Display Key Descriptions ProgrammingIntroduction Password Edit Pin Delay Time D1AAssign Pump A1A Only in Occurrence Mode Prime Pump P-1Key Icons Exit Program Mode EndProgram Mode Screens Set Numerical DisplayTroubleshooting Dead Unit No Display TroubleshootingSpare Parts Listing NO. Part NO. DescriptionMaintenance & Specifications Index