4
Water Chemistry
Allowable Levels
Water Temperature
68-104°F (20-40°C)
pH
7.6-7.8
Total Alkalinity (ppm)
80-120
Calcium Hardness (ppm)
200-400
Salt (ppm)
4500 Maximum
Free Chlorine (ppm)*
2-3
Total Dissolved Solids (ppm)
3000 Maximum**
*Free Chlorine MUST NOT EXCEED 5 ppm!
**In saltwater chlorinated pools, the total TDS can be as high
as 6000 ppm.
Table A. Spa and Pool Water Chemistry
2. WATER CHEMISTRY
CAUTION:
Corrosive water voids all warranties
For your health and the protection of your pool equipment,
it is essential that your water be chemically balanced.
The levels shown in Table A must be used as a guide for
balanced water.
Pool/Spa Water Chemistry
Occasional chemical shock dosing of the pool or spa
should not damage the heat exchanger providing the
water is balanced. Automatic chemical dosing devices
and salt chlorinators are usually more efficient in heated
water. If not controlled, they can lead to high chemical
levels which can damage the heat exchanger.
Further advice should be obtained from your pool or spa
builder, accredited pool shop, or chemical supplier for the
correct levels for your water.
Automatic Chlorinators and Chemical
Feeders
All chemicals must be introduced downstream of the
heater and completely diluted into the water before being
circulated through the heater.
Chlorinators must feed downstream of the heat exchanger
and have an anti-siphoning device or check valve to
prevent chemical back-up into the heat exchanger when
the pool filtration pump is shut off.
CAUTION:
High chemical concentrations from feeders
that are out of adjustment will cause rapid corrosion of
the heat exchanger. Such damage is not covered under
the warranty.
CAUTI
ON: Failure of a heat exchanger due to lime scale
build-up on the heating surface, low pH, or other chemical
imbalance is
not c
overed under the warranty
.
3. SAFETY INFORMATION
Pool water temperatures typically range from 78°F (26°C)
to 82°F (28°C). The American Red Cross recommends a
temperature of 78°F (26°C) for competitive swimming.
However , this may be too cool for young children and the
elderly, who may require a te mperature of 80°F (27°C) or
higher.
4. OVERVIEW
Congratulations on the purchase of the most advanced
spa/pool heater in the market. To get the best performance
and savings from your new heater, it is important to install
the heater in accordance with our instructions and the
electrical, plumbing codes applicable to your area.
If you have any questions, please contact your Authorized
Dealer, or visit our website at www.raypak.com.
READ AND FOLLOW ALL INSTRUCTIONS GIVEN
IN THIS MANUAL.
The water in a spa or pool should never exceed 104°F
(40°C). A water temperature in excess of 104°F (40°C)
is considered unsafe for all persons. Lower water
temperatures are recommended for extended use
(exceeding 10-15 minutes) and for young children.
Excessive water temperatures have a high potential
for causing fetal damage during the early months of
pregnancy. Pregnant or possibly pregnant women
should limit spa or pool water temperatures to 100°F
(38°C).
Before entering a spa or pool, the user should measure
the water temperature at several locations using an
accurate thermometer since the tolerance of water
temperature - regulating devices may vary as much as
much as +/- 5°F (3°C)
Alcohol, drugs or medication should not be used before
or during spa or pool use since their use may lead to
unconsciousness with the possibility of drowning.
Persons suffering from obesity or with a medical history
of heart disease, low or high blood pressure, circulatory
system problems, or diabetes should consult a physician
before using a spa or pool.
Persons using medication should consult a physician
before using a spa or pool since some medication may
induce drowsiness while other medication may affect
heart rate, blood pressure and circulation.
Prolonged immersion in hot water may induce
hyperthermia. Hyperthermia occurs when the internal
temperature of the body reaches a level several degrees
above normal body temperature of 98.6°F (37°C).
The symptoms include dizziness, fainting, drowsiness,
lethargy and an increase in the internal temperature
of the body. The effects of hyperthermia include:
Unawareness of impending hazard, failure to perceive
heat, failure to recognize the need to exit spa or pool,
physical inability to exit spa or pool, fetal damage in
pregnant women and unconsciousness resulting in a
danger of drowning.
