Alliance Laundry Systems PHM1397C - Manual (Page 46)

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Specifications and Dimensions
F8112101 44
Chemical Injection Supply System
Undiluted chemical dripping can damage the washer-
extractor. Therefore, all chemical supply dispenser
pumps should be mounted below the washer’s
injection point. All dispenser tubing should also run
below the injection point. Loops do not prevent drips
if these instructions are not followed. Failure to follow
these instructions could damage the machine and void
the warranty. Figure 19 shows a typical chemical
injection supply system.
Chemical Service Connections
Chemical service connections are located inside the
machine’s rear electrical enclosure. Provisions
include:
• Clearly marked chemical signal locations.
• Chemical signals are prewired for 85 VAC
signals (85 VAC on, 0 VAC off) and can be easily
changed to accommodate dry contact chemical
signal formats.
• Up to 12 chemical signals are available.
• A timer hold input is available for use with
dispensing systems feeding multiple machines.
• 7/8 in. (22 mm) hole is provided in rear electrical
panel cover for mounting a typical chemical
pump interface module or feeding chemical
pump control signal wires.
Connection of Chemical Supply Hoses
To connect a chemical supply hose to machine:
1. Remove one of the plastic plugs from an
injection port.
2. Screw one of the 6 3/8 in. (10 mm) nipples
supplied with machine into open injection port.
3. Connect feed hose to nipple and secure hose with
a hose clamp.
4. Ideally, pump system should be mounted so that
it is lower than chemical injection ports. Hose
connections at injection port should be highest
point in hose to prevent chemical drippage. Refer
to Figure 19. Making loops in chemical feed
hoses does not prevent dripping.
PHM689N
1 Chemical Signal Connections
2 Supply Hose
3 Chemical Injection Connections
4 Dispenser Pump
Figure 19
Wear eye and hand protection when
handling chemicals; always avoid direct
contact with raw chemicals. Read the
manufacturer’s directions for accidental
contact before handling chemicals.
Ensure an eye-rinse facility and an
emergency shower are within easy reach.
Check at regular intervals for chemical
leaks.
SW016
WARNING
Dispenser
Pump
1
3
2
4