Chemical signal connections, Control function test, 2 chemical signal connections – B&C Technologies SP Series Commercial User Manual

Page 42: 12 control function test

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2. Install the supplied chemical nipple, using teflon tape.

3. Insert tubes onto the nipples, using small hose clamps or wire ties to prevent the hose from

slipping off.

The chemical flush water valve (relay 12) should be used with each chemical signal (see the EL6
programming manual for details).

For the poly supply box, you must drill the nipples prior to use (max 1/4 bit). A NPT connection
is also provided for flushing systems. The chemical flush valve is not necessary. See figure 4.18
on page 39.

4.11.2

Chemical Signal Connections

Connection terminals are located in the rear control box for output signals to the chemicals injec-
tion supply pump. Refer to figure 4.19 on page 40.

Terminals SUPPLY 1 through SUPPLY 8 provide signals for external chemical supply pumps. The
signal is a maximum of 1 amp at 24V 50/60Hz.

Do not attempt to increase circuit breaker rating as this will cause damage to the washer-extractor
circuitry and void the warranty.

Any injection system pump, which requires 24-220V AC must be powered by a separate external
power source.

4.12

Control Function Test

The machine should be cleaned after the installation is complete. A function test should then be
executed on the unloaded machine as follows:

1. Check the proper supply for such characteristics as correct voltage, phase, and cycles to be

certain they are correct for the machine.

2. Open manual shut-off water valves to the machine.

3. Press Emergency Stop button.

4. Apply power to the machine.

5. Release the Emergency button.

6. Check the door interlock before starting the machine.

38

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