Hydro systems Dover LM-700, Dover MERCURY TL Reference Manual

MERCURY TL Laundry Dispensing System

!

Reference Manual LM-700 Series

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WARNING:

The LM-700 dispensing system
is intended to be installed
by experienced installers, in
accordance with all applicable
electrical and plumbing codes.

NOTE: Always use proper
lockout tagout procedures
when installing and servicing
dispensing systems. Please
disconnect all washer and
dispenser power sources any
time the dispenser cabinet
is open.

Preface

This manual has been written and illustrated to present the basic
installation, operation, and servicing instructions of the LM-700 Laundry
Dispensing System. Guidelines will be suggested in reference to the
preferred method of installation, however, the variety of equipment and
the surrounding environment will dictate the actual installation of
the LM-700.

All machine and dispenser power
must be disconnected during
installation and/or any time the
dispenser cabinet is opened.

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Table of Contents

1 Theory of Operation

Overview .......................................................................................................................................... 3

Automatic Mode...............................................................................................................................3

Push Button Mode ........................................................................................................................... 3

Relay Mode ...................................................................................................................................... 4

2 Mechanical Installation

3 Electrical Installation

4 User Mode Operation

5 Programming

6 Troubleshooting

7 Maintenance and Repair

8 Maintenance and Specifications

Index

Wall Mounting Unit ...........................................................................................................................4

Supply and Discharge Hoses ........................................................................................................... 4

Main Power ...................................................................................................................................... 5

Trigger Signal Wiring ........................................................................................................................ 5

Auto Formula Select Wiring .............................................................................................................5

User Mode Screens .........................................................................................................................6

Formula Selection ............................................................................................................................ 6

Start Formula (Push Button Mode Only) .......................................................................................... 6

View Load Counter...........................................................................................................................6

ID/Mode ........................................................................................................................................... 6

Prime Pumps (when enabled) .......................................................................................................... 7

Password Access to Program Mode ...............................................................................................7

Introduction ...................................................................................................................................... 8

Key Descriptions .............................................................................................................................. 8

Password Access to Program Mode ...............................................................................................8

Prime Pump “P-1”............................................................................................................................9

Clear Load Counter “CLr” ................................................................................................................ 9

Operating Parameters “oP’ .............................................................................................................. 9

Lockout Period “LP” ........................................................................................................................ 9

Formula Program “F-1” .................................................................................................................... 9

Pump Amount “P1A” .......................................................................................................................9

Delay Time “D1A” ............................................................................................................................9

Assign Pump “A1A” (only in Occurrence Mode) .............................................................................. 9

Finish Program “Fin” ........................................................................................................................ 9

Filter Duration “Fd” ........................................................................................................................10

User Prime “uPr” ............................................................................................................................ 10

Password Edit “Pin” ....................................................................................................................... 10

Exit Program Mode “End” .............................................................................................................. 10

Dead Unit (No Display) Troubleshooting ........................................................................................ 11

Spare Parts Listing ......................................................................................................................... 12

Dimensions ....................................................................................................................................13

Power Requirements ...................................................................................................................... 13

General Specifications ................................................................................................................... 13

Limited Warranty ............................................................................................................................13

Limitation of Liability ...................................................................................................................... 13

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Theory of Operation

Overview

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.

Automatic 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.

Push 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 (programmed 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.

Occurrence 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 programmed 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.

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Theory of Operation

Relay 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.

Mechanical Installation

Wall Mounting Unit

To determine a suitable location to install the dispenser, keep the
following in mind: Install close to product containers at a reasonable
height for easy service access. When intended for Push Button Mode
operation, be sure to allow easy front panel access for the machine
operator.

• Drill one hole in wall for upper mounting bracket screw wall anchor.

• Install wall anchor and temporarily attach bracket to the wall
(do not tighten screw all the way).

• Level bracket using built-in level and mark drill locations for lower
mounting screw holes.

• Swing bracket out of the way, drill lower holes, and install lower
wall anchors.

• Screw bracket into place.

• Lower unit onto wall mount bracket and press down until unit locks
into place. To remove unit from bracket, depress lock button on the
top of the bracket as you lift the unit from the mounting bracket.

Supply and Discharge Hoses

We recommend use of 3/8” ID hose for supply and discharge hoses.
Use of smaller size ID hose/tube may results in reduced flow rates,
premature pump tube failure, or both.

The maximum combined distance for supply and discharge hoses must
not exceed 50 feet. The maximum supply side hose distance must
not exceed 15 feet. The maximum vertical height from product
container to pump must not exceed 10 feet.

CAUTION:

The Mercury dispensing system is
intended to be installed by
experienced installers in
accordance with all applicable
electrical and plumbing codes.

Disconnect power to laundry
machine and dispensers during
installation and/or any time the
dispenser cabinet is opened.

Figure 1 Mounting Bracket

Use hose clamps to secure supply and discharge hoses to pump tube
hose barbs. Route supply hose to product pails and discharge hose to
washer per industry standard practices.

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Figure 2 Unit Rear Bracket Slot

Electrical Installation

The Mercury is available in two different wiring versions: terminal block,
or wiring cable. The following instructions apply to cable versions.
Terminal Block versions include an additional wiring information label
adjacent to the terminal blocks inside the unit enclosure.

The Mercury includes two separate wiring cables for Main Power and
Input Trigger Signal connections. These cables may route through either
one or two conduit fittings, as required.

Main Power

Main Power is a universal power input that accepts any AC voltage
from 90-249 VAC, 50/60 Hz. Typical sources include a wall outlet, or
washing machine incoming power terminals. For wall outlet connections
use a wall plug, sourced locally, that fits outlets in your region. Main
Power Cable color coding is as follows: Blue + Brown 90-249 VAC,
50/60 Hz.

NOTE: In cases where a Neutral wire exists, connect Neutral to

the Blue wire.

Green with yellow stripe is Earth Ground.

Trigger Signal Wiring

CAUTION:

The Mercury dispensing system
is intended to be installed
by experienced installers in
accordance with all applicable
electrical and plumbing codes.
All laundry machine and dispenser
power is to be disconnected
during installation and/or any time
the dispenser cabinet is opened.

CAUTION:

Always verify all voltage sources
with a meter.

NOTE:

Failure to use watertight conduit
for electrical cables will impair
water resistance of the
unit enclosure.

All trigger signal inputs are optically isolated high impedance input circuits. Washer supply signal voltages
may range from 24-249 VAC, 50/60 Hz (20 mA maximum draw) or 12-24 VDC (5 mA maximum draw) that
accommodate the range typically found in most washing machines. Each signal input connects to a pair of signal
input wires (solid color and white with colored stripe). In cases where the washing machine has a single
common for supply signals, connect all the signal input common wires (white with colored stripes) to the machine’s
signal common wiring location. In Automatic or Relay Mode trigger inputs match pump numbers (i.e. trigger 1 =
pump 1, etc.). In Occurrence Mode connect wire pairs from each machine fill valve to two trigger inputs (it does not
matter which two of the three available trigger inputs are used for Occurrence Mode).
Signal Input wire colors are as follows:
Trigger Signal 1 = Black
Signal Common 1 = White w/Black Stripe
Trigger Signal 2 = Brown
Signal Common 2 = White w/Brown Stripe
Trigger Signal 3 = Red
Signal Common 3 = White w/Red Stripe

Auto Formula Select Wiring

Input specifications are the same as trigger inputs. The Auto Formula Select signal must be programmable to the
second on the washing machine control system. Program the washer to send this signal at the start of the wash
load (prior to any chemical supply signals) for a duration of 2 seconds times the desired formula number (i.e. for
formula 2 program for 2s * F2 = 4 seconds signal time).
Auto Formula Select input wire colors are as follows:
Auto Formula Select Signal = Orange
Auto Formula Select Signal Common = White w/Orange

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