Raypak 514-824 - Manual (Page 6)

AFTER START-UP
Feel the inlet and outlet pipes. Outlet pipe should be
only slightly warmer than the inlet. It should not be hot.
WARNING: Should overheating occur or the gas
supply fail to shut off, turn off the manual gas control to
the appliance.
VISUAL INSPECTION
With the heater on, remove the door and make a
visual check of the pilot and burner.
The flame should be blue with a well-defined pat-
tern.
Fig. # 8144.0
MAIN BURNER FLAME
PILOT BURNER FLAME
A yellow or “floating” flame indicates restricted air
openings or incorrect orifice size. Should this occur,
shut the heater off and contact your installer or gas
supplier.
WATER PRESSURE SWITCH
A water pressure switch is provided in the heater to
shut off the burners in the event that water supply to the
heater is interrupted. It is very important to verify that
the switch electrically opens and shuts off the gas valve
when water flow to the heater is interrupted. Otherwise,
rapid and severe damage will likely occur to the heater.
(The water pressure switch should be checked and
adjusted for proper operation by a qualified service
person at the time of installation and periodically checked
thereafter. Refer to pressure switch servicing instruc-
tion in Section 4 of this manual).
WARNING: Operation of the heater without water circu-
lation will cause rapid and severe damage to the heater.
6
SECTION 2/CAUTION
Elevated water temperature can be hazardous, and
the U.S. consumer Product Safety Commission recom-
mends the following guidelines:
1. Spa or hot tub 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 braindamaged or deformed child. Preg-
nant 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 heat 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 drowsi-
ness, such as tranquilizers, antihistamines, or anti-
coagulants, should not use spas or hot tubs.
SECTION 3/MAINTENANCE AND CARE
PROCEDURES
To be followed one month after start-up and then
semiannually.
1. Inspect top of heater and drafthood for soot, (a
sticky black substance around finned tubes and “V”
baffles), and open flue gas passageways.
CAUTION: Soot may be combustible. Wet sooted
surfaces completely prior to cleaning. Do not use steel
wire brush.
2. Clean main burners and pilot burner of dust and lint.
3. Inspect and operate all controls, gas valve and
pressure relief valve.
4. Make visual check of the burner and pilot flame.
Flame pattern on the main burner and pilot is
indicated in the previous illustration. Yellow flame
means restriction of the air openings. Lifting or
blowing flame indicates high gas pressure. Low
flame means low gas pressure. Should this occur,
shut the heater off and contact your gas supplier or
qualified service agency.
4" Max.