Alliance Laundry Systems CHM1772C manual External Supplies

External Supplies

For proper communication between the washer- extractor and an external chemical supply system, it is important for the low-voltage signal power to be connected properly. The included wiring diagram (F8133502) 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 washer- extractor is to use the 300mA power of the washer- extractor’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.

Basically, wash-cycle signals are provided to the external chemical supply equipment and a “wait for the next step” signal can be received from the supply equipment. 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.

1.Use the Internal 24VAC 300 Control Transformer (Recommended by Alliance Laundry Systems)

There are 3 terminals necessary for this connection option. Terminal “24VAC COM” is used to connect 1 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 washer-extractor output signals common through a red jumper wire between “24VAC” and “RELAY COM”. Do not use the transformer terminals if an external power supply is used.

		Installation
		1
		CONNECTIONS
		EXAMPLE FOR EXTERNAL
		DISPENSER CONNECTION
	2	RELAY COM
	ES 3	Supply 1
	ES 4	External
		Dispensing
	RELAY	System
		24VAC COM
	COM
	RED
	24VAC	Internal
		Supply
	24VAC COM	300mA Max
	JUMPER FOR INTERNAL
	24 VAC SUPPLY
	CONNECTED TO RELAY
	. (REMOVE IF NOT
		TO INTERNAL
		SUPPLY
	STEP 1: Insert screwdriver &	down
	to open cage clamp.
	STEP 2: Insert Wire		2
	Wire Size 28-
		0.08-1.5mm
	8.5mm
	Strip Length
	4		3
			CHM2336N
			CHM2336N
1	Relay Com
2	Red Jumper Wire
3	24 VAC
4	Transformer

2.Use an External AC Power Source (Not Provided by Alliance Laundry Systems)

NOTE: Power for external supplies must not be derived from the high-voltage main power connection point.

The external power must supply power of 240VAC or less and be protected at 3 Amps or less. Remove the red jumper wire installed by the factory between “24VAC” and “RELAY COM”. Connect 1 side of the external power to the “RELAY COM” and the other to the external dispenser input signals common.

F8208301 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 53