Specifications
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Installation
F8429301 (EN)
58
External Supplies
For proper communication between the machine and
an external chemical supply system, it is important for
the low-voltage signal power to be connected properly.
The included wiring diagram shows several different
options for safe and correct wiring of this interface.
The preferred method for connecting the wiring from
the external chemical supply system to the machine is
to use the 300mA power of the machine’s 24VAC
control transformer, which is intended strictly for this
purpose. Other voltage and current options are
available, but require some wiring changes and must
be provided with an external power source. Under no
circumstances should the high-voltage machine supply
connections or source be used for the communication
wiring.
Communication wiring connections, which include a
single row of identified terminal blocks, can be found
under a service panel at the upper back of the machine.
Chemical Injection Using Internal 24VAC
Control Transformer
NOTE: Using the Internal 24VAC 300 Milliamp
Control Transformer is recommended by Alliance
Laundry Systems.
IMPORTANT: DO NOT remove the red jumper
wire from the terminal strip. Refer to Figure 46.
Figure 46
There are 3 terminals necessary for this
connection option.
Terminal “24VAC COM” is used to connect one
side of the internal control transformer to the
external dispenser input signals common.
The second terminal is used to connect the other
side of the control transformer to the machine
output signals common through a red jumper
wire between “24VAC” and “RELAY COM”.
Refer to Figure 47.
IMPORTANT: Do not use the transformer
terminals if an external power supply is used.
Do not attempt to increase fuse rating or
alter wiring of external chemical supply
terminal strip in such as way that may
conflict with the suggested methods
provided on the Optional External Supply
Wiring Diagram.
W699
CAUTION
CHM2336N
1 Relay Com
2 Red Jumper Wire
3 24 VAC
4 Transformer
EXTERNAL DISPENSER CONNECTIONS
RELAY COM
RELAY
COM
Supply 1
External
Dispensing
System
Internal
Supply
300mA Max
24VAC COM
24VAC COM
JUMPER FOR INTERNAL
24 VAC SUPPLY
CONNECTED TO RELAY
COM. (REMOVE IF NOT
WIRING TO INTERNAL
24 VAC SUPPLY
STEP 1: Insert screwdriver & press down
to open cage clamp.
STEP 2: Insert Wire
8.5mm
Strip Length
Wire Size 28-16AWG
0.08-1.5mm
24VAC
RED
ES 1
ES 2
ES 3
ES 4
EXAMPLE FOR EXTERNAL
DISPENSER CONNECTION
CHM2336N
2
4
1
3