This instruction manual provides operating
instructions, installation and service information for
the MiniMax Plus high performance heater. The
information in this manual applies to the MiniMax
Plus 150, 195, 200, 250, 300, 350, and 400 natural
gas and propane (LP) models.
It is very important that the owner/installer read and
understand the section covering installation
instructions, and recognize the local and state codes
before installing the MiniMax Plus. History and
experience has shown that most heater damage is
caused by improper installation practices.
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
above 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.
Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the
appliance. Do not use this heater if any part has been under water. Immediately call a qualified service
technician to inspect the heater and to replace any part of control system and gas control which has been
The MiniMax Plus pool heater is sold with a limited
factory warranty. Specific details are described on
the back cover of this manual and a copy of the
warranty and warranty registration card are
included with the product. Return the warranty
registration card after filling in the serial number
from the rating plate inside the heater.
Pentair Pool Products' high standards of excellence
include a policy of continuous product improvement
resulting in your state-of-the-art heater. We reserve
the right to make improvements which change the
specifications of the heater without incurring an
obligation to update the current heater equipment.
4. Before entering the spa or hot tub, the user
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 their physician's advice
before using spas or hot tubs.
6. Persons taking medication which induce
drowsiness, such as tranquilizers, antihistamines
or anticoagulants should not use spas or hot
Rev. E 2-7-01