Swimming Pool Heater User Manual

Warning:
D
o not ingest alcohol or drugs during use or prior
t
o using pool, spa, or hot tub. Ingestion of such intoxi-
cants can cause drowsiness which can lead to uncon-
sciousness, and subsequently result in drowning.
Do not heat pool, spa, or hot tub water in excess
of 104°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 the first
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 ther-
mometer; spa or hot tub thermostats may err in regu-
lating water temperatures by as much as four
degrees Fahrenheit (2.2°C).
Persons with a 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 drowsi-
ness, such as tranquilizers, antihistamines, or antico-
agulants, 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 control operation:
Temperature Controls
Figure 43
The heater is equipped with a Temperature Conrol
for controlling the Pool and Spa water temperatures.
Individual Pool and Spa setpoints can be entered using
the keypad. The control also displays the Pool or Spa
water temperature and diagnostic information.
Operation:
This new Hayward IDL2 heater has improved oper
-
ating software and routines that differ from previous
IDL2 and IDL models. The key identifier for the
improved IDL2 control is the label found at the top of
the ignition board in the control box. This label is printed
in blue ink and references “VER13” (the updated
Version 13 software).
To turn the heater on, press the MODE key to put
the heater in the POOL or SPA mode. The POOL LED
will illuminate to indicate that the control is in the POOL
mode and the water temperature is to be controlled to
the pool setpoint. The SPA LED will illuminate to indi-
cate that the control is in the SPA mode and the water
temperature is to be controlled to the spa setpoint. The
display will show the actual water temperature. The
HEAT LED will illuminate whenever the burners have
fired and the heater is actively heating the water.
Set Point adjustment:
The set point temperature is displayed by pressing
the UP or DOWN keys while in the POOL or SPA
mode. The set point will blink while being displayed.
Further pressing of the UP or DOWN keys will adjust
the set point temperature up or down. The set point
can be set between 65˚F and 104˚F.
Fahrenheit versus Celsius:
The temperature can be displayed in Fahrenheit or
Celsius. To change the display, first use the MODE key
to put the control in STANDBY. Then, press and hold
the UP and MODE keys until the display shows the
˚F/˚C selection. Press the DOWN key to toggle
between selections. The selection will be selected after
60 seconds, or when the MODE key is pressed.
Sequence of Operation:
This Hayward heater utilizes a microprocessor-
based ignition control board and display board to con-
trol the heater’s operation for your safety and comfort.
The ignition module monitors and evaluates inputs
from the blower prover switch, the temperature limit
switches, the vent pressure switch, the water pres-
sure switch, the water temperature sensors, the flame
sensor, and the keypad. The control uses these
inputs and internal logic to recognize, act upon, and
display the appropriate error codes when necessary.
HEATING MODE
The control continually compares the water temperature
with the set point and the high limit temperature. When
the water temperature is more than 1° below the set point
a call for heat is generated and a heating cycle is initiated.
1. The control checks for open contacts at the
blower prover switch.
2. The control energizes the blower at low speed
and the igniter
. The igniter heat-up time is
approximately 20 seconds. The blower is running
a pre-purge cycle during this time.
3. The control checks for closed contacts at the
blower prover switch.
4.
When the igniter reaches the proper temperature
a 4-second trial for ignition begins. The control
opens the gas valve and monitors flame current.
2524
Figure 42