Chemical Pump, Chemical; Heat Bypass Valves; Nitrogen Accumulator; Pressure Regulator - Prochem BLAZER PLUS Operating Instructions Manual

Y–STRAINER (OUTLET)
Inspect the Y-strainer after the first week of running
the unit by unscrewing the screen and remove any
accumulated debris. Inspect the strainer again at 2
and 4 weeks.
The Y-strainer should then be inspected every
month. However, if the Y-strainer has a frequent
build-up of debris it should be inspected and cleaned
more often.
CHECK VALVE (OUTLET)
Inspect the check valve when rebuilding the
chemical pump or as needed. Remove and
disassemble the check valve. Check the Teflon seat
for debris or abnormal wear. Clean or replace seat if
needed.
NOTE: Improper seating of the check valve
poppet, damaged spring or o-rings will cause
poor operation of the chemical system.
For the procedure, see the "General Service
Adjustments" section in this manual for details.
CHEMICAL PUMP
Rebuild the chemical pump every 1000 hours. This
involves changing the diaphragm and check valves.
For the procedure, see the "General Service
Adjustments" section in this manual for details.
CHEMICAL AND

HEAT BYPASS VALVES

Examine the packing nut on the chemical selector
valve, heat bypass valve, and chemical metering
valve every 200 hours. Keeping these valve
packings properly adjusted will eliminate possible
leakage from the valve stems and add to overall
valve life.
For the procedure, see the "General Service
Adjustments" section in this manual for details.

NITROGEN ACCUMULATOR

Check the nitrogen pre-charge at least once a year.
Recharge the accumulator and replace the bladder,
when needed. This should be performed by an
Authorized Service Center.
Recharge accumulator with nitrogen ONLY. DO
NOT charge accumulator over 250 PSI.

PRESSURE REGULATOR

Lubricate the o-rings every 50 hours. Use o-ring
lubricant Part #05-008035.
For the procedure, see the "General Service
Adjustments" section in this manual for details.

VACUUM HOSES

To assure maximum hose life, we recommend that
the hoses be washed out with clean water at the end
of each working day.
BLAZER 980073 09/16/02
MAINTENANCE
4-6