CAC / BDP FOR BYPASS AND FAN POWERED HUMIDIFIERS Owner's Manual - page 2
The humidifier operates in conjunction with the furnace blower motor. When
the humidistat calls for humidity and the blower motor is operating, water flows
to the distribution pan located at the top of the unit. The water is uniformly dis-
tributed across the width of the pan and through a scientifically designed system
of outlets. It flows by gravity over the humidifier pad. Dry, hot air is moved
through the moisture-laden humidifier pad where evaporation takes place. The
now-humidified air carries moisture in vapor form throughout the home.
The correct water flow is determined by an orifice in each unit. When the
unit is operating, there will be a small, steady stream of water to drain, which
flushes away most of the trouble-causing minerals.
Do not use the saddle valve
to regulate the water flow. It is designed to be completely opened or closed.
The minerals and solid residue not trapped by the replaceable humidifier pad
are flushed down the drain. The drain also eliminates the problems caused by
stagnant water. This is the most effective and least expensive method to dispose
of trouble-causing minerals.
Trouble-free performance and minimum maintenance are assured by the
design features of the humidifier. All unit housing parts that come in contact with
water are non-metal and will never rust or corrode. Neither heat nor water will
affect them under normal operating conditions.
The humidifier pad, designed especially for uniform, high evaporation, and
the Scale Control Insert also efficiently trap mineral deposits which are often the
cause of damage to working parts in ordinary humidifiers. No “white dust” can
be distributed throughout the living quarters. The humidifier pad must be in good
condition to assure high capacity trouble-free performance. It should be
changed annually.
Older design water distribution trays have a granular coating in the bottom of
the distribution tray to provide equal distribution of water to each of the openings
assuring an even flow over the humidifier pad.
Do not clean the mineral scale off
the bottom of the water distribution tray at the end of the humidification season.
If the granular coating is removed, it is not necessary to purchase a new distri-
bution tray. You can accomplish the same uniform performance by applying a
small amount of liquid dishwashing soap over the entire inside surface of the
water distribution tray. This will allow the water to flow evenly through each of
the openings, provided the unit is level, in order to achieve maximum capacity.
The current distribution tray which incorporates a synthetic fabric liner that
replaces the granular coating, is designed to deliver water uniformly over the
entire top surface of the humidifier pad, provided it is mounted level. It is normal
for some mineral deposits to form in the distribution tray as it dries out between
humidification cycles. These deposits can actually help distribute water in the
tray, but if they form enough to block the openings, they should be removed as
described in the “Periodic Preventative Maintenance” section of this manual.
3
Bypass and Fan Powered Humidifiers
Table of Contents
Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Effect of Water Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Annual Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Annual Summer Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Periodic Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance Instructions
Small and Large Bypass Humidifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Fan Powered Humidifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2
WARNING!
120 VOLTS may cause injury from electrical shock.
Disconnect power and shut off water supply before servicing.
CAUTION!
Sudden operation may cause personal injury or
property damage. Turn humidistat to “OFF” before servicing.
Introduction
Thank you for your recent humidifier purchase. We sincerely appreciate your
business and are pleased to add your name to our growing list of customers.
Now, please take a few minutes and read this booklet. This will familiarize you
with the benefits you will receive from the equipment you just purchased and
help you understand the routine maintenance that will be required.
I. Principle of Operation
You have purchased a humidifier that operates on the evaporative principle.
It will provide the proper relative humidity (see operating instructions) all during
the heating season. It is very possible that you have questions concerning what
your new humidifier can do for you, and what you should do to receive maximum
benefits from it. This booklet is intended to answer these questions.