User's Manual

Page 4 P/N 20-07121-00 Rev. C
THEORY OF
OPERATION
MECHANICAL
INSTALLATION
ELECTRICAL
INSTALLATION
PROGRAMMING
USER MODE
OPERATION
TROUBLESHOOTING
SPARE PARTS
LISTING
MAINTENANCE &
SPECIFICATIONS
INDEX
3.0 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.
CAUTION: The Mercury dispensing system is
intended to be installed by experi-
enced 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.
3.1 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 connec-
tions 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.
3.2 Trigger Signal Wiring
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
3.3 Auto Formula Select Wiring
Input specifications are the same as trigger inputs.
The Auto Formula Select signal must be program-
mable 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