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SECTION 5. CONSUMER OPERATION & MAINTENANCE PROCEDURES
! Warning:
Do not ingest alcohol or drugs during use or prior to using
pool, spa or hot tub. Ingestion of such intoxicants can cause
drowsiness which can lead to unconsciousness, and subse-
quently result in drowning.
Do not heat pool, spa or hot tub water in excess of 102°F.
A temperature of 100°F is considered safe for a healthy adult.
Hotter water increases the risk of hyperthermia. Special caution
is suggested for younger children.
Pregnant women beware! Soaking in water above 102°F
(39°C) can cause fetal damage during rst three months of
pregnancy (resulting in the birth of a brain-damaged or deformed
child). Pregnant women should adhere to the 100°F (38°C)
maximum rule.
Before entering the spa or hot tub, users should check the
water temperature with an accurate thermometer; spa or hot
tub thermostats may err in regulating water temperatures by as
much as four degrees Fahrenheit (2.2°C).
Persons with medical history of heart disease, circulatory
problems, diabetes, or blood pressure problems should obtain
their physician’s advice before using spas or hot tubs.
Persons taking medications which induce drowsiness, such
as tranquilizers, antihistamines or anticoagulants, should not use
spas or hot tubs.
If the pool/spa is used for therapy, it should be done with the
advice of a physician. Always stir pool/spa water before entering
the pool/spa to mix in any hot surface layer of water that might
exceed healthful temperature limits and cause injury.
Do not tamper with controls, because scalding can result if
safety controls are not in proper order.
Temperature Controls:
Millivolt Heaters
Millivolt heaters are provided with a mechanical thermostat.
The thermostat and system switch are mounted on the control
panel. The thermostat controls the pool or spa temperature.
The system switch allows one to turn the heater on or off. See
Figure 41.
The memory stop provides
a manual means of locking the
desired maximum tempera-
ture setting of the pool or spa.
Once the desired temperature
setting of the knob has been
determined, the memory stop
is adjusted by loosening a set
screw, rotating the memory stop
to the knob setting, and retight-
ening the set screw. The water
temperature should be set
and checked with an accurate
thermometer immersed in the
pool or spa.
Electronic Heaters
Electronic heaters are provided with a digital temperature
control that can be set to heat either the pool or spa. The digital
temperature control is located on the control panel. The digital
thermostat contains a mode key, up and down temperature
adjustment keys, a LED display, and ve status LED’s.
To turn the heater on, toggle the “MODE” key to “POOL:’
or “SPA”. The water temperature will be displayed. To display
the “POOL” or “SPA” set point, press the UP or DOWN key.
The set point will ash while being displayed. To adjust the set
point, press the UP or DOWN key until the desired set point
is displayed. The display will revert back to showing the water
temperature after about 15 seconds. The temperature can be
displayed in either Fahrenheit or Celsius. To change to Celsius,
move the position of the #1 “Dip Switch” (located on the back of
the circuit board) to “C”.
In the POOL or SPA modes, the actual water temperature is
shown on the display. The Heating LED illuminates whenever
the heater res. If an abnormal condition is detected, the Service
LED illuminates and a diagnostic code is displayed. Lists of the
indicator LED’s and diagnostic codes are shown below:
Periodic inspection:
The H-Series heater is designed and built for long
performance life when installed and operated according
to the manufacturer’s directions. Regular inspection by
qualied service personnel is recommended to keep the
heater operating properly. The following inspection points
are suggested to help maximize heater life:
KNOB
SET
SCREW
MEMORY
STOP
M
I
N
I
M
U
M
MAXIMUM
Figure 41:
Temperature Controls
Status LED
LED Explanation
STANDBY Illuminates when the heater is “off”.
SPA Illuminates when the heater is in the SPA mode.
POOL Illuminates when the heater is in the POOL mode.
SERVICE Illuminates when an abnormal condition has been
detected. A diagnostic code will be shown on the
display.
HEATING Illuminates when the heating is in progress.
Diagnostic Codes
Code Explanation
SF Thermistore failure.
HS Maximum water temperature exceeded.
LO Limit string open.
IF Ignition Failure
HF Flame sense failure
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