STARTING UP
LUBRICATION
The pump requires no lubrication. Refer to manufacturer’s recommendations.
CLEANING THE STRAINER BASKET
M22904937A
WWW.CARVINPOOL.COM
3
CAUTION!
Never run the pump without water in
the pump case because lack of water
can damage the shaft seal.
WARNING!
During periods when the pump is not in use,
and always during servicing, switch the
ON/OFF switch to OFF and pull the plug from the receptacle.
NOTE: THE PUMP SHALL BE SERVICED BY QUALIFIED PERSONNEL ONLY.
PIPING
The pump has m a l e / female sockets to receive 1-1/2"
(38 mm)
or 2
(51
mm)
‘’ threaded fittings. Keep the piping as simple as possible, and avoid
connecting an elbow directly to the pump inlet (use a length of straight
pipe to allow a proper entry of the water). Keep as much of the suction
pipe as possible below the water level of the pool. This will reduce the
priming time but arrange the pipe to rise continuously toward the pump to
prevent high, spots that could form air pockets. Support the pipes
independently so that they do not place strain on the pump. Install gate
valves in the pump suction and pool return lines close to the filter
system for convenient servicing of the equipment. These valves are
essential if the equipment is installed below water level. Keep the gate
valve in the suction line fully open during operation, and make sure that its
gland is kept tight to prevent the entrance of air around the valve stem.
Take care during installation to keep the pipes clean, and make sure that the
suction system is absolutely airtight.
INSTALLATION
Locate the pump as close to the pool as possible, but keep at a minimum
distance of at least five feet (1.5M) to prevent it being used as a means of
access to the pool by young children (See previous Warning). Locate the
pump preferably in a dry, shaded, and well-ventilated area. Should it be
impossible to put the pump at or below water level, choose the lowest
possible position. This simplifies priming, and adds to the pressure
developed by the pump. Prepare a hard, level surface that is large enough
to accommodate the associated equipment. Bear the following in mind:
Drainage of the filter room or pit; Ventilation of the motor; Access for
servicing and winterizing the equipment; Protection of the equipment.
Make sure the bearing surface is leveled and straight to reduce vibrations.
This is a self-priming pump, which means that it can raise water to itself
through a dry suction line without using valves, provided the pump case
and strainer body are full of water before the motor is started. We recom-
mend the use of a swing check valve in the suction pipe, at or below water
level, if the suction lift is more than 5 feet (1.5m) or if the dry suction line
would be more than 10 feet (3.0 m) long. This arrangement makes the initial
priming easy and keeps the suction pipe primed at all times. The pump is
built from glass-reinforced thermoplastic mouldings. These eliminate all
corrosion problems and insulate the water passages from the electric
motor. A closed impeller, which requires no field adjustment to
maintain efficiency, runs inside a multi-vane s e p e r a t e diffuser
.Ample running clearances between impeller and case promote long life
and prevent seizure should sand enter the pump. The impeller hub forms
an insulating sleeve over the motor shaft and carries the mechanical shaft
seal. This seal, which has a pure-carbon rotating face working against a
ceramic seat, requires no attention until leakage at the shaft shows that
replacement is necessary. For easy routine servicing, the built-in hair
and lint strainer has a transparent cover. For easy access to the working
parts, the removal of four screws allows the motor, bracket, seal, impeller
and diffuser to be withdrawn as a unit. ORKA assemblies were simplified
for ease of maintenance and repair.
GENERAL
ELECTRICAL CONNECTIONS
Check that the information on the pump nameplate corresponds to
the power supply. Employ a competent electrician to make the wiring
installation in accordance with the local electrical code. Every motor
requires a fused disconnect switch. ORKA models are only compati -
ble with 230 Volts.
For 2-speed pumps,
start and prime the pump at HIGH SPEED only. Do
not change to LOW SPEED before the pump is working properly. At HIGH
SPEED (3450 rpm approx.), the motor develops its full horsepower and the
pump generates high capacity and pressure. Use high speed for
maximum filtration at peak periods and whenever turbidity levels are
high. At other times switch to LOW SPEED (1725 rpm approx.). For
backwashing and vacuuming, HIGH SPEED is required. If the pump is
supplied as part of a complete filter system, follow the starting-up proce-
dure described in the separate instructions for the complete filter
system. In other cases, proceed as follows:
1).
Close the gate valves in the suction and return lines. Remove the cover
from the hair and lint strainer and fill the pump completely with water.
Replace the cover.
2).
Open the gate valves in the suction and return lines and start the pump.
If the pump fails to produce a full flow of water within four or five minutes,
switch off the power and repeat Step 1. If the pump still fails to work,
check for air leaks at the strainer cover, suction line connections, and valve
stem glands before repeating Step 1.
3).
After about ten minutes of operation check the pool return fittings for
air bubbles. A continuous flow of air indicates leaks in the suction
line. Locate and correct any leaks immediately.
CONTROLLING THE OUTPUT
Keep the gate valve in the suction line fully open during opera -
tion. Should it be necessary to control the output, use a valve in the
return line.
DRAINING
There are two drain plugs on the pump case. Note that the valves in the
suction and return lines must be open to allow complete draining of the
pump, but that other provisions may be necessary for draining the
filter, heater, and pipe lines.
MAINTENANCE
The pump can be serviced without breaking the pipe connections.
Close the gate valves,
SWITCH THE ON/OFF SWITCH TO OFF AND PULL
THE PLUG FROM THE RECEPTACLE
before starting work on the pump.
Switch off the power. Close the valves in the suction and return lines.
Remove the Strainer Nut and clear cover and lift out the strainer basket.
Clean and replace the basket. Take care to clean o-ring and make sure that it
is well seated underneath clear cover and place cover back on strainer body.
Align and insert Strainer Nut, hand-tightened only (fig.1). Re-open valves.
Put pump back into operation.
NOTE: Do not re-tighten Strainer Nut while pump is in operation.
MOTOR SPECIFICATIONS
For pump motor specifications. Please refer to the manufacturer specifi-
cation sticker on the motor.
