Raypak 105B - 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 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.
SECTION 2 / CAUTION
Elevated water temperature can be hazardous,
and the U.S. Consumer Product Safety Commission
recommends 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 subse-
quently 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
four degrees Fahrenheit (2.2
°
C).
5. Persons with a medical history of heart disease,
circulatory problems, diabetes, or blood pres-
sure 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.
SECTION 3 / MAINTENANCE
AND CARE PROCEDURES
To be followed one month after start-up and then
semi-annually.
1. Inspect top of heater and draft hood for soot, (a
sticky black substance around finned tubes,
baffle 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.
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
instruction in Section 4 of this manual.)
WARNING: Operation of the heater without water circu-
lation will cause rapid and severe damage to the
heater.
PILOT BURNER FLAME
Fig. # 8144.1
4" MAX
MAIN BURNER FLAME
Fig. # 8958
5