Winterizing, Water chemistry – Jacuzzi MAGNUM User Manual

Page 7

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Winterizing

Consult your dealer for advice on winterizing your

equipment if freezing temperatures occur in your locality.
His knowledge of your equipment makes him the best
qualified source of information. Follow his
recommendations, and if these include draining the filter
system, proceed as follows:
1. If your system does not contain a filter, proceed to

step2.
A. For sand filters: BACKWASH for 3 to 5

minutes and set dial valve to WINTERIZE.

B. For cartridge filters: Clean the filter element and

store in a dry place.

2. Drain system by loosening drain plugs (drain plugs

will drain without completely removing the plug
from unit) and/or removing pipe caps.

Water Chemistry

A proper and consistent use of chemicals is

necessary to maintain clean, sanitary water, prevent a
spread of germ infection and control the growth of algae
which can spoil the appearance and enjoyment of your
pool or spa.

Chlorine is the most commonly used chemical to

provide clean, sanitary water. Either dry or liquid chlorine
(calcium or sodium hypochlorite) can be used which
should be added daily as it is dissipated by dirt and germs
as well as be the sun and wind.

It is also important that the correct level of acidity or

alkalinity of the pool water be maintained. This is the pH
of your pool with pH 7.0 being neutral. Readings above
7.0 are alkaline and below are acid. A desirable range is
7.2 – 7.4.

Pump Maintenance

1. Motors are self-lubricating – no lubrication required.
2. Clean hair & lint strainer if you have a strainer body

pump.

3. Visually inspect motor for blockage of air vents on

motor shell. Remove any debris after breaker off.

4. Shaft seals may become worn and must be replaced if

leakage is observed.

Cleaning

Switch power off. Close valves in suction and return

line. Unscrew strainer Ring-Lok counterclockwise and
remove the strainer cover from hair and lint strainer and lift
out strainer basket. Clean and replace the basket. Take care
to seat basket properly. Clean O-Ring and re-lubricate with
petroleum jelly if necessary. Clean O-Ring seats on cover
and strainer. Refit cover and strainer – hand tighten only –
and open valves. Put pump back into operation.
Caution: Do not retighten strainer during operation.

Service & Repair Parts

Refer all service to your local dealer as his knowledge

of your equipment makes him the best qualified source of
information. Order all repair parts through your dealer. Give
the following information when ordering repair parts:
1. Unit nameplate data.
2. Description of part.

Trouble Shooting

MOTOR DOES NOT START
1. Disconnect switch or circuit breaker in OFF position.
2. Fuses blown or thermal overload open.

Locked motor shaft.

3. Motor windings burned out.
4. Defective starting switch inside single-phase motor
5. Disconnected or defective wiring
6. Low

voltage

MOTOR DOES NOT REACH FULL SPEED

1. Low

voltage

2. 2 speed model set on low speed
3. Motor windings connected for wrong voltage on

dual voltage model.


MOTOR OVERHEATS (Protect trips)

1. Low

voltage

2. Motor windings connected for wrong voltage on

dual voltage model.

3. Inadequate

ventilation


PUMP DELIVERS NO WATER

1. Pump is not primed
2. Closed valve in suction or discharge line
3. Leakage or air into suction system
4. Impeller

clogged


LOW PUMP CAPACITY

1. Valve in suction or discharge line partly closed
2. Suction or discharge line partly plugged
3. Suction or discharge line too small
4. Pump running at reduced speed (see above)
5. Plugged basket in skimmer or hair and lint strainer
6. Dirty

filter

7. Impeller

clogged

8. Wrong rotation (3 phase only)


LOW PUMP PRESSURE

1. Pump running at reduced speed (see above)
2. Wrong rotation (3 phase only)
3. Discharge valve or inlet fittings closed too much


HIGH PUMP PRESSURE

1. Discharge valve or inlet fittings closed too much
2. Return lines too small
3. Dirty

filters


NOISY PUMP AND MOTOR

1. Plugged basket in skimmer or hair in lint strainer
2. Worn motor bearings
3. Valve in suction line partly closed
4. Suction line partly plugged
5. Vacuum hose plugged or too small
6. Pump not supported properly


LEAKAGE OF WATER AT SHAFT

1. Shaft seal requires replacement


AIR BUBBLES AT INLEY FITTINGS

1. Leakage air into suction line at connections or valve

stem

2. Cover gasket of hair and lint strainer needs cleaning
3. Restriction in suction line
4. Low water level in pool


NOTE: If the recommendations in the Trouble
Shooting portion of this manual do not solve your
particular problem(s), please contact your local dealer
for service.

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