Raypak VERSA 155C - Manual (Page 6)

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 drowsi-
ness 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, antihista-
mines, or anticoagulants, should not use
spas or hot tubs.
Pressure
Switch
Location
Fig. # 8110.1
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 valve 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 pattern.
MAIN BURNER FLAME
Fig. # 8964
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. Other-
wise, 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
instruction in Section 4 of this manual).
WARNING: Operation of the heater without water
circulation will cause rapid and severe damage to the
heater.