Start-Up Inspection Instructions; Disabling Vsplc / Vsslc; Initial Start Up; Main Relief Valve (Mrv) Setting - Clarke C18H Instruction Manual

15.2.2 Start-Up Inspection Instructions

15.2.2.1 Disabling VSPLC / VSSLC

 To disable the VSPLC / VSSLC,
disconnect the wiring harness by
removing
instrument panel (See Figure #28,
Location 6)
 A diagnostic code will be displayed on
Powerview gauge and an alarm will be
sent to fire pump controller. This is
normal.
15.2.2.2 Bleeding the PLD Speed Control
System
 At initial start-up with the engine at
rest, open the drain cocks at the top of
the manifold connection block (See
Figure #4) to bleed out any air.

15.2.2.3 Initial Start Up

 Close the sprinkler system main
discharge valve and then start the
engine. (Note: Refer to Section 2.6 to
assist with
instructions for the engine.)
 Set engine rated speed with pump
should be operating at rated flow
(GPM).
 Record the discharge pressure and
engine speed at shutoff (0 GPM) for
future reference.
 Enable the VSPLC / VSSLC by
plugging wiring harness into engine
instrument panel. (See Figure #29,
Location 11). Diagnostic code and fire
pump controller alarm will go away.
 You may or may not observe a
reduction in speed. The greatest speed
reduction will occur with the pump
running at shut-off (0 GPM). Reduce
flow back to shut-off and record the
change in discharge pressure and
engine RPM from values recorded
above. In no case should the discharge
pressure be greater than the maximum
allowed system pressure.
connector from engine
start and stopping
 NOTE: The purpose of disabling the
VSPLC / VSSLC is to allow for testing
of the pump with the PLD Speed
Control System de-activated. This
only occurs during initial start-up and
during the annual pump test. Be sure
to test PLD operation twice, once with
each engine ECM active.
15.2.2.4 Main Relieve Valve (MRV) Setting
 To prevent the PLD control being
affected by the opening and closing of
the
recommended to set the cracking
pressure of the MRV 15-20 psi above
the PLD Set Point.

15.2.2.5 System Monitoring

 Via the Powerview gauge located on
the engine's instrument panel (Figure
#28,
configured VSPLC / VSSLC set points
and real-time discharge pressure and
suction pressure can be monitored.
 To view system set points follow these
steps (See Figures #26, 27, 28):
o From
o The Fire Pump Parameters
o This screen is a summary of
o Additionally,
 To view system real-time suction and
discharge pressures follow these steps
(See Figures #5, 7, 8)
o From
56
Main Relieve Valve;
Location 1), the
the default
screen, press the
ARROW button.
screen will be displayed.
engine operating speed, pump
discharge pressure, and pump
suction pressure.
the
suction and discharge set points
will be displayed. These values
are non-adjustable.
the default
screen, press MENU button
once.
it is
factory
"Home"
RIGHT
factory
"Home"