White Rodgers HDT2600 User Manual

MODEL HDT2600

WHOLEHOUSE CENTRAL HUMIDIFIER

OWNER’S

MANUAL

Includes Safety, Operating and Maintenance

Instructions

CAUTION: READ THESE INSTRUCTIONS THOROUGHLY

BEFORE SERVICING

FILL IN FOR HOME OWNER REFERENCE:

Model No.

HDT 2600

Installation Date

SAVE THIS MANUAL FOR FUTURE REFERENCE

CONTENTS

PAGE

Principle Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Checking For Proper Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Water Hardness & Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Maintenance For HDT2600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

WARNING: Setting your humidity control higher than the listed setting
could cause condensation that would damage your home. If excessive
moisture appears on windows or walls, reduce humidity setting at humidi­stat enough to eliminate condensation. If the situation continues, turn off
water valve and the humidistat until condensation is gone.

PRINCIPLE OF OPERATION

Your White-Rodgers Humidifier uses the same natural methods of evapora­tion that you see in mother natures, everyday, normal, environment. Natures
way is simple, a little water spread over a large area with a warm breeze will
evaporate the water and raise the relative humidity, just the same as it would
after a summer shower.

The humidifier accomplishes this with a polyurethane foam evaporator pad
that lifts water from the water pan and into the warm air stream. You will
notice that the evaporator pad has many holes and connecting strands,
these drastically increase the area that the water can evaporate from. This
combined with the warm air in your heating system is what makes the
humidifier work.

The system is controlled by a humidistat that monitors the relative humidity
within your home and activates or deactivates the humidifier accordingly.

Water evaporated from this humidifier leaves behind all the impurities (Cal­cium, Iron, Lime, Bacteria, etc.) that were contained in the water, thus the
vapor is in a pure form and these impurities are not distributed into your
home. This will keep our home clean and your family safe from these
contaminates.

OPERATING INSTRUCTIONS

Your new humidifier is controlled by a humidistat that is installed either on
the cold air return or in the living area on an interior wall. The recommended
settings on this control may seem a bit strange when you first read them. But
there is a reason for them and it can be explained fairly easily. You will notice
the recommended setting goes down with the outdoor temperature, this
seems illogical. If you remember last summer when you were outdoors with
a cold drink the outside of the container became wet and water began to run
down the sides. This is called condensation, caused by the surface of the
container reaching the dew point. This means the air surrounding the con­tainer contained humidity and the cold surface of the container cooled the air
around it, when cooled the air becomes smaller and is no longer capable of
holding as much moisture as it could hold when it was warm. This is what
caused the moisture to accumulate and run down the container. The same
thing can happen in your home in the winter when the outside temperature
drops and the inside is warm and humid. This is why the settings go down­ward when the temperature goes down to prevent accumulation on your
windows etc.

At Outside Recommended At Outside Recommended

Temperature Setting Temperature Setting

–20°F. –29°C. 15% +10°F. –12°C. 30%
–10°F. –23°C. 20% +20°F. – 7°C. 35%

0°F. –18°C. 25% Above 20° –7°C. 40%

1

Occasionally some indoor activity may cause the humidity to rise to excess
and begin to accumulate on windows. Such activities as cooking, showers,
and clothes drying, etc. If this condition persist for more than a few hours
the humidifier should be turned off and if this condition still continues, the
home should be ventilated to remove the moisture.

CHECKING THE HUMIDIFIER FOR PROPER OPERATION

To check the humidifier for proper operation, winter start up, and after ser­vicing follow this recommended procedure.

1. Turn the water on at the saddle valve to the humidifier.

2. Check the water level in the humidifier, water level setting should be
1-3/8”. Turn valve adjustment screw clockwise to lower water level
and counter clockwise to raise.

3. Turn the humidistat to its highest setting and observe the humidifier
evaporator pad for rotation. If the unit is not rotating turn the furnace
on by setting the thermostat higher until the furnace starts and the
blower is running.

NOTE: Wiring the unit to operate independent of or in conjunction with
the furnace blower is left to the discretion of the installer. On installa­tions where the unit might be closely sized, independent operation
allows the unit to operate thru-out the full blower cycle, thereby elimi­nating lag time involved in starting the humidifier.

4. Reset thermostat and humidistat to their correct positions for auto­matic operation.

WATER HARDNESS AND MAINTENANCE SCHEDULE

Your humidifier will accumulate minerals such as calcium and lime after
operating for a short period (accumulation of minerals is a sure sign the
humidifier is producing humidity). The amount of accumulation is
dependent on the hardness of the water supply in your area. Therefore
the time between cleaning is unpredictable. In areas with hard water
where cleaning becomes frequent we suggest installation of a White­Rodgers Automatic Flushing Timer to increase time between cleaning
intervals.

NOTE: Excessive buildup of these minerals is detrimental to internal
parts as well as evaporative efficiency.

2

MAINTENANCE INSTRUCTIONS

FOR

WHITE-RODGERS HUMIDIFIER MODEL HDT2600

MODEL HDT2600

REPLACEMENT PAD #
A04-1725-034

1. Turn the water off at the saddle valve by turning the T handle clockwise.

2. Remove the humidifier cover (1) by lifting the bottom upward on the bot­tom for the model HDT2600.

3. Remove the drum assembly (2) by lifting the drum shaft from the bearing
end (3) and slide it out of the motor coupling, then remove drum from unit.

4. Remove the rubber valve seat by grasping it between your thumb and
fore finger and lifting it upward and removing it from the valve. (see arrow
4 inside water valve opening.)

5. Now raise the float up to remove the water pan (5) for cleaning.

6. For drum disassembly and assembly see the drawing below.

7. Clean all parts in a 50% solution of vinegar or a humidifier cleaner and
water. Soaking over night to remove stubborn deposits, is sometimes
required.

NOTE: It is suggested that the evaporator pad be replaced yearly. Depen­ding on the hardness this interval could vary.

8. For reassembly reverse procedures 1 thru 5 and return to the section
labeled “CHECKING THE HUMIDIFIER FOR PROPER OPERATION”
follow these steps to assure proper humidity output.

3

HBP Part No. 000-0756-311 Rev. 2-02

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