Raypak 408 - Operating Instructions and Procedures; Start-Up Procedures; Before Start-Up Checks; Visual Inspection of Flames

6
3. OPERATING INSTRUCTIONS
3.1. Start-Up Procedures
Your pool/spa heater has been designed for years of safe
and reliable pool/spa water heating. It is available with
electronic ignition. This manual provides installation,
operation, maintenance, and service information for these
heaters.
TEMP
MODE
ON
OFF
LCD Display
Temp Adjust Buttons
Mode Button
Figure 1. Heater Control Toggle Switch
If your heater has been installed correctly, operating the
heater is an easy task. The upper front panel of the heater
contains the control center that allows you to turn the
heater On or O and adjust the temperature settings for
the pool or spa. The temperature range is factory set from
65°F (18°C) to 104°F (40°C). See Figure 1 for location of
toggle switch to turn the heater On and O.
See Section 8 for additional details about the use of the
controls in the Control Adjustments subsection.
3.2. Before Start-Up
3.2.1. Burners
Clean main burners and air louvers of dust, lint and debris.
Keep heater area clear and free from combustibles,
ammable liquids and chemicals. Do not obstruct the
ow of combustion and ventilation air.
3.2.2. Water
Water must be owing through the heater during
operation. Ensure that the system is lled with water and
that the pump is operating.
3.2.3. After Start-Up
Feel the inlet and outlet pipes. Outlet pipe should be only
slightly warmer than the inlet. It should not be hot.
AA
WARNING: Should overheating occur or the gas
supply fail to shut o, turn o the manual gas control to
the appliance.
3.3. Visual inspection
3.3.1. Atmospheric Heaters
With the heater on, remove the door and make a visual
check of the pilot and burner. The ame should be blue
with a well-dened pattern.
A yellow or “oating” ame indicates restricted air
openings or incorrect orice size. Should this occur, shut
the heater o and contact your installer or gas supplier.
AA
WARNING: Operation of the heater without water
circulation will cause rapid and severe damage to the
heater, and will void the warranty.
3.4. Caution
Elevated water temperature can be hazardous. The
U.S. Consumer Product Safety Commission has these
guidelines:
1. Spa water temperatures should never exceed 104°F
(40°C). A temperature of 100°F (38°C) is considered
safe for a healthy adult. Special caution is suggested
for young children.
2. Drinking of alcoholic beverages before or during spa
or hot tub use can cause drowsiness which could
lead to unconsciousness and subsequently result in
drowning.
3. Pregnant Women Beware! Soaking in water over
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 stick to the 100°F (38°C) maximum rule.
4. 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 4°F
(2.2°C).
5. Persons with a medical history of heart disease,
circulatory problems, diabetes, or blood pressure
problems should obtain a physician’s advice before
using pools or hot tubs.
6. Persons taking medications which induce
drowsiness, such as tranquilizers, antihistamines, or
anticoagulants, should not use spas or hot tubs.