5
MB Pool & spa heater
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 fl ame should be blue with a well-defi ned pattern.
MAIN BURNER FLAME
PILOT
BURNER
FLAME
A yellow or "fl oating" fl ame indicates restricted air
openings or incorrect injector 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 sup-
ply to the heater is interrupted. It is very important
to verify that the switch electrically opens and
shuts off the gas valve when water fl ow to the
heater is interrupted. Otherwise, rapid and severe
damage is likely to occur to the heater. (The water
pressure switch should be checked and adjusted
for proper operation by a qualifi ed service person
at the time of installation checked thereafter.
WARNING: Operation of the heater without water
circulation will cause rapid and severe damage to
the heater.
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 40°C (104°F). A temperature of 38°C
(100°F) is considered safe for a healthy adult. Spe-
cial caution is suggested for young children.
2. Drinking of alcoholic beverages before or dur-
ing 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 39°C (102°F) can cause fetal damage dur-
ing the fi rst three months of pregnancy resulting
in the birth of a brain-damaged or deformed child.
Pregnant women should stick to the 38°C (100°F)
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 be in
error in regulating water temperatures by as much
as 2°C (4°F).
5. Persons with a medical history of heart di
sease, circulatory problems, diabetes, or blood
pressure problems should obtain a physician's ad-
vice before using pools or hot tubs.
6. Persons taking medications which induce
drowsiness, such as tranquilizers, antihistamines, or
anticoagulant, should not use spas or hot tubs.
MAINTENANCE AND CARE
PROCEDURES
It is recommended that the Heater is serviced every
2000 hours of operation, for normal use this is about
12 months. The control will alert when you when it
reaches this period by its display, ‘SEr’ alternating
with the temperature.
It is a mandatory requirement that any gas work
carried out must be by a registered engineer with an
appropriate accreditation.
This heater casing is Polyester powder on top of
zinc coated steel to assist in resisting corrosion.
It is recommended that periodically the casing is
cleaned and sprayed with WD40 or similar liq-
uid especially when installed outdoors. Exposed
threads on manifolds will benefi t from a light coating
of grease. Outdoor tops are fi nished with a special
black high temperature coating and as this is part
of the fl ueing system, subject to high temperatures
and the elements, can discolour and corrode over a
period of time.
1. Inspect top of heater and drafthood for soot, (a
sticky black substance around fi nned tubes and "V"
baffl es), and open fl ue gas passage ways. If soot is
present, contact installer or service agent.
2. Inspect and operate all controls, gas valve and
pressure relief valve.
4" MAX
100MM