Star Water Systems VPH SERIES - Manual (Page 5)

5
95 North Oak Street • Kendallville, IN 46755 • 260-347-1600 © Copyright 2013. All rights reserved.
F. The pressure switch is wired to the motor by connecting
the motor lead to the two inside terminals of the pressure
switch. Connect the power lines to pressure switch
terminals marked L-1 and L-2.
IL0199
Motor
Load Load
Load
Line 1 Line 1
Power
Supply
PRIMING & ADJUSTMENT
CAUTION: Before starting motor, the pump body
must be completely filled with water. Running the
pump dry will cause seal damage.
I. Pumps With Fully Automatic Control Valve
A.
Remove priming plug from pump. Fill pump body
completely with water until all air has been expelled.
Replace plug.
B. Start pump. If pump is properly primed, pressure will
build quickly and register on the pressure gauge. If
pressure does not build, repeat the priming operation.
ON DEEP WELL INSTALLATIONS, ALL AIR MUST BE
VENTED FROM THE DRIVE AND SUCTION PIPES AS
WELL AS THE PUMP BODY BEFORE THE PUMP WILL
PRIME. IT MAY BE NECESSARY TO FILL THE PUMP
BODY SEVERAL TIMES TO ACHIEVE PRIME.
C. Once prime is achieved, unit will adjust automatically to
the average operating pressure.
II. Pumps With Semi-Automatic Control Valve
A. Remove priming plug from pump. Fill pump body
completely with water until all air has been expelled.
Replace plug.
B. Screw adjusting stem on control valve all the way in, then
start the pump. If the pump is properly primed, pressure
will build quickly and register on the pressure gauge. If
pressure does not build, repeat the priming operation.
C. With the pump operating at high pressure and no
pressure in the tank (two or more faucets open) slowly
unscew the adjusting stem until maximum flow is
obtained. The case pressure at this point will be the
average operating pressure and should agree with the
chart shown below.
D. If the control valve is opened too far, a slight cavitation
noise will be noticeable and still further opening will
cause the pump to lose prime.
AVERAGE OPERATING PRESSURE
MODEL NO.
SETTING
HP PRESSURE
VS, VA207P 3/4 46 PSI
VS, VA210P 1 57 PSI
VS, VA215P 1-1/2 72 PSI
VPH10 1 47 PSI
NOTE: PUMP WILL NOT PRIME IF THERE IS ANY
LEAKAGE IN THE SUCTION PIPING.
III. Pumps Installed In A Horizontal Position
A. “VA” and “VS” pumps can be installed horizontally by
using the optional 135276 pump base.
B. If installed horizontally, prime through the priming port of
the pump body.
C. By following this procedure, the entire pump cavity can
be filled with water and air will be expelled more readily.
MAINTENANCE
A. LUBRICATION
The pumps and motors require no lubrication. The ball
bearings of the motor have been pre-lubricated and
under normal operating conditions should require no
further greasing.
B. FREEZING
Drain the entire system if there is danger of freezing. A
drain plug is provided at the bottom of the pump case for
this purpose.
ROTARY SEAL ASSEMBLY
REPLACEMENT
CAUTION: Make certain that the power supply is
disconnected before attempting to service the unit!
The rotary seal assembly must be handled carefully
to avoid damaging the precision lapped faces of
the sealing components.
A. Disengage pump body from motor and mounting ring.
B. Remove diffuser and unthread impeller from the pump
shaft.
NOTE: To prevent the shaft from rotating when removing
the impeller, use an 11/16” open end wrench on the hex
of the pump shaft.
C. The carbon seal face, friction ring, and stainless steel
shell & spring of the rotary seal will come loose at this
time. Use a screwdriver (or similar instrument) to pry the
ceramic seal and rubber gasket from the recess of the
mounting bracket.
CAUTION: Be careful not to damage the motor
shaft or recess surface.
D. Clean the recess and pump shaft thoroughly.