Honeywell ACM 150 Manual To Installation, Operation, And Maintenance page 120

ACM 150
Figure 77. Relays manual control
Service inspections and procedures
Preparation for servicing
Expendable parts on hand
Expendable parts, which are inspected and possibly replaced during PM servicing,
should be stocked on-site and available when needed.
Recommended spare parts
To minimize the time for repair, it is recommended that spare parts be stocked
by the ACM 150 monitor user. You should review this with your local HA service
representative to determine which of these spares should be stocked at your facility
to support service. Refer to Sections 10.3 and 10.4 for lists of parts.
Qualified personnel
Services described in this chapter should only be performed by authorized or trained
personnel, as defined in
paragraphs.
Contaminated areas
During normal use, parts of the ACM may contain residual amounts of hazardous
materials and service operations may generate contaminated waste. This is
especially so for monitors that have been frequently exposed to hazardous material.
Examples of service items that may be contaminated are: cleaning materials, gas
cells, filters, valves, pump parts, tubing, and ZnSe windows.
Service people should insure that the ACM is safe before attempting repairs. The
minimum recommended personal protection includes gloves and safety glasses. It is
the user responsibility to dispose of contaminated waste safely and properly.
Servicing the filters
The rate of particulate accumulation varies with the local conditions. Follow the
recommended intervals for replacing filters unless your periodic inspections/tests
indicate that more frequent replacement is necessary.
Cabinet air filters and fans
Cooling fans are installed in the main cabinet and the lower pump cabinet.
Each cooling fan has a filter with a removable plastic cover. These filters should
accumulate dust at the same rate. Therefore, they should all be replaced at the same
time with the ACM 150 monitor off-line. When replacing filters, wipe dust off the
plastic cover. Also, inspect the fans to assure they operate correctly and do not have
accumulated dust. Wipe accumulated dust from the fans. Replace fans that do not
operate correctly, i.e. do not spin freely.
Levels of ACM 150 users, and as indicated in the following
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