Raypak P-R185B To P-R405B - Manual (Page 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
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.
4" MAX
Fig. # 8205.2
MAIN BURNER FLAME
Fig. # 8964.1
PILOT BURNER FLAME
A yellow or "floating" flame indicates restricted air open-
ings 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).
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 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
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 drowsi-
ness, such as tranquilizers, antihistamines, or anti-
coagulant, 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 drafthood for soot, a sticky
black substance around finned tubes and "V"
baffles), and open flue gas passage ways. Any visible
soot should be cleaned for proper operation.
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WARNING: Operation of the heater without water
circulation will cause rapid and severe damage to the
heater.
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.
WARNING: Should overheating occur or the gas
supply fail to shut off, turn off the manual gas control
to the appliance.