Raypak 266A - Manual (Page 7)

7
AFTER START-UP
Feel the inlet and outlet pipes. Outlet pipe should be
only slightly warmer than the inlet. It should not be hot.
VISUAL INSPECTION - ATMOSPHERIC HEATERS
With the heater on, remove the door and make a visu-
al check of the pilot and burner. The flame should be
blue with a well-defined pattern.
4" MAX
Fig. # 8205.2
MAIN BURNER FLAME
Fig.# 8964.1
MILLIVOLT 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 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 serv-
ice person at the time of installation and periodically
checked thereafter. Refer to Pressure Switch
Adjustment on pg. 37 of this manual).
WARNING: Should overheating occur or the gas
supply fail to shut off, turn off the manual gas control
to the appliance.
SECTION 2 - 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 ther-
mometer; spa or hot tub thermostats may err in reg-
ulating water temperatures by as much as 4°F
(2.2°C).
5. Persons with a medical history of heart disease, cir-
culatory 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.
WARNING: Operation of the heater without water
circulation will cause rapid and severe damage to
the heater.
Fig. # 9438