DEMA ATLAS 844P
™
SERIES
LAUNDRY CONTROL
I-907
Page 4 of 17
Rev. C-33371
5.
If using the EDSM, select a location to mount the EDSM where the laundry machine operator can
easily access the buttons on the front of the EDSM module. Again, it can be mounted with the
self-adhesive Velcro that is included in the hook up kit. The EDSM can be connected to the IQ-85
or the STU by use of the supplied communication cable. See the EDSM instruction manual for
more information.
6.
If using the DEMA 950 flush manifold or any other flush manifold , select a location that will
allow all the electrical (power for solenoid valve and pressure switch) and tubing connections. It
should be noted that the flush output on the IQ-85 is a 24VDC signal. The solenoid coil for the
flush valve will need to match this output signal.
Cleaning Instructions
Do not expose inside of unit to moisture! Do not expose unit to direct water/chemical spray! Clean
external shell with damp cloth.
844P Pump Configurations
The pumps are numbered 1 through 6 from left to right.
Electrical Installation
All installations must be in accordance with city, county, parish, state or provincial electrical codes and
should be performed by a certified electrician. A ½” nonmetallic conduit system must be used to install
the power cord. For questions, please contact local licensed electrical contractor.
Before the electrical installation, it is important to understand the various modes that the 844P Laundry
Master has to offer. The following describe the 3 main modes, however there are sub-options that can be
set up within these 3 modes. See the setup section for additional information.
Formula Select Mode:
This is where the unit can be programmed with up to 30 different formulas. Each formula is
driven to operate by individual trigger sources that are generated by the laundry machine.
Sequence Mode:
This is where the unit can be programmed to count a single event from the laundry machine. A
good example of this is using the drain valve on the laundry machine as a trigger source. The IQ-
85 will count the drain valve operations and will operate pumps based on these counts. Up to 30
formulas can be programmed in this mode as well.
Relay Mode:
There is only one programming variable to set on the IQ-85. A flush can be set to run with, and
for an additional time after, each pump operation. Otherwise the IQ-85 is not programmed, but
instead the laundry machine is programmed to provide various formulas. The IQ-85 acts like a
relay board and will only operate pumps for the length of time that the STU receives a trigger
signal from the laundry machine.
