Page 21
ENGLISH
Jandy
®
Pro Series, Hi-E2
®
and Hi-E2R Gas-Fired Heater
|
Installation & Operation Manual
Figure 27. Gas valve.
OFF
ON
ON
OF
F
GAS CONTROL TOGGLE
SWITCH SHOWN IN
“ON” POSITION
Figure 26. Temperature control panel.
Jandy
6. Replace the control compartment door.
7. Turn on electrical power to the heater.
8. Turn on the lter pump.
9. Turn the rotary switch to either SPA or POOL. Set
the temperature control to the desired setting. The
ignition control automatically lights the burner
when the thermostat calls for heat.
10. Set the time clock, if one is installed.
3.3.2 Shutdown
Complete shutdown instructions are as follows:
1. Set both temperature controls to the lowest
setting.
2. Turn the rotary switch on the control panel to
OFF.
3. Turn off all electrical power to the heater at the
main junction box.
4. Open the control compartment door and switch
the gas valve to OFF.
5. Turn external gas valve off.
3.4 Water Chemistry
3.4.1 Pools
The mineral content of swimming pool water increases
daily, due to natural evaporation and the addition of
sanitizing chemicals. If the mineral concentration in the
pool gets too high, the excess minerals will deposit on the
walls of the pool, in the lter system, and in the heater
tubes. It is important to keep the pH factor of the pool
water between 7.4 and 7.6. See Table 7 for guidelines on
other chemical measurements.
3.4.2 Spas
The proper chemical balance in spa water is more critical
than in a swimming pool heater operation. Due to the spa's
size, high water temperature, and heavy usage, chemical
values in a spa can vary greatly. This chemical imbalance
can result in unsanitary water conditions, and affect the
life of the heater.
3.4.2.1 Spa Water Chemistry
Maintaining safe water conditions in a spa can only be
done by regular water changes and the proper addition of
sanitizing chemicals. Kits are available from your local
pool supply dealer for making the various tests for mineral
content. One of these kits will detect copper in the system.
This is usually a warning that corrosion is taking place,
possibly due to a low pH value combined with other
chemistry problems. The condition can be corrected by
changing the spa water and closely monitoring the pH
factor and chemical properties of the water. See Table 7.
Table 7. Chemical Concentration Levels.
Test Recommended
Level*
Free Chlorine or 1.0 to 3.0 ppm (3.0 to 5.0 spa)
Bromine 2.0 to 4.0 ppm (3.0 to 5.0 spa)
pH 7.4 to 7.6
Total Alkalinity (TA) 80 to 120 ppm
Calcium Hardness (CH) 200 to 400 ppm
Cyanuric Acid 30 to 50 ppm
Total Dissolved Solids (TDS) Less than 2000 ppm
Copper 0 ppm
*Concentration levels taken from "Basic Pool and Spa Technology" published by APSP
(Association of Pool and Spa Professionals).
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