Aprilaire 800 series User manual

READ AND SAVE THESE INSTRUCTIONS

Series 800 Steam Humidifier

Owner’s Manual

Includes Safety & Operating Instructions

and Warranty Information

Steam Humidifier

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Safety Cautions .............................................. 3

Introduction .................................................4

Principles of Operation ........................................ 4

Sequence of Operation ........................................5

Installation Options and Effect of Water Characteristics..............6

Operating Modes .............................................7

Display Panel ................................................8

Operating Instructions –

Model 62 Automatic Digital Humidifier Control ..................... 9

Operating Instructions –

Model 65 Manual Digital Humidistat ............................14

Operating Instructions –

Model 63 Automatic Digital Modulating Control . . . . . . . . . . . . . . . . . . . 17

Additional Information........................................20

Maintenance ...............................................20

Limited Warranty............................................22

TABLE OF CONTENTS

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CAUTION

HOT SURFACES AND HOT WATER

This steam humidiﬁcation system has extremely hot surfaces.

Water in steam canister, steam pipes, and dispersion tube can be

as hot as 212°F (100°C). Discharged steam is not visible. Contact

with hot surfaces, discharged hot water, or air into which steam

has been discharged can cause severe personal injury. To avoid

severe burns, follow procedures in this manual when performing

service or maintenance procedures on any part of the system.

ELECTRICAL SHOCK HAZARD

Follow the shutdown procedure in this manual before performing

service or maintenance procedures on any part of the system.

If the humidiﬁer starts up responding to a call for humidity during

maintenance, severe bodily injury or death from electrical

shock could occur. Follow the procedures in this manual before

performing service or maintenance procedures on this humidiﬁer.

EXCESS HUMIDITY

Do not set humidity higher than recommended. Condensation

may cause damage.

CAUTION

Read all cautions and instructions.

Read this manual before performing service or maintenance

procedures on any part of the system. Failure to follow all

cautions and instructions could produce the hazardous

situations described, resulting in property damage, personal

injury, or death.

Failure to follow the instructions in this manual can cause

moisture to accumulate, which can cause damage to structure

and furnishings.

SAFETY CAUTIONS

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The Aprilaire®Steam Humidifier delivers humidity in the form of steam to

the conditioned space via the HVAC system duct or Aprilaire Fan Pack. The

humidifier generates steam by energizing two electrodes that extend into a

canister of water. Current flowing between the electrodes causes the water

to boil, creating steam. Water is introduced to the humidifier through a fill

valve to a fill cup located in the top of the cabinet. The fill cup serves as

an overflow reservoir and provides an air gap between the humidifier and

water source. The steam canister is filled from the bottom. The canister is

seated in a drain cup assembly which includes a drain valve. The drain and

fill valves work together to maintain water level in the canister to deliver

the rated steam capacity based on the electrical conductivity of the water

and to temper drain water. See Figure 1 for representation of fill and

drain system and canister.

Steam is delivered into the airstream through a dispersion tube mounted

in the HVAC system ductwork. Openings in the dispersion tube are fitted

with “tubelets™” which extend into the center of the tube. The design of

the dispersion tube and tubelets distribute steam over a wide area in the

duct and direct any condensed moisture back into the steam hose.

PRINCIPLES OF OPERATION

FIGURE 1 – Fill and Drain System and Canister

90-1522

Steam

Outlet

Drain

Supply

Water

Drain Cup

Drain Valve

Canister

Electrodes

High Water

Level Sensor

Flow Control

Orifice

Inlet

Fill V

alve

Overflow

Fill

Fill Cup

Thank you for your recent Aprilaire®humidifier purchase. We appreciate

your business and are pleased to add your name to our growing list of

customers. You have invested in the highest quality equipment available.

Aprilaire manufactures whole-house indoor air quality products and is a

recognized leader in the heating and air conditioning industry.

Your humidifier will require periodic maintenance to assure continued

consistent performance. See page 20.

Please take a few minutes and read this booklet. This will familiarize

you with the benefits you will receive from the humidifier and help you

understand the routine maintenance that will be required.

Be sure to register your humidifier warranty online at:

www.aprilaire.com/warranty.

INTRODUCTION

Genuine Aprilaire Replacement Model 80 Steam Canisters are

available from your installing contractor or from most other heating

and air conditioning contractors in your area. Use the dealer locator on

our web site (www.aprilaire.com) or look in the Yellow Pages under

Humidifying Apparatus or Heating & Air Conditioning Contractors.

SEQUENCE OF OPERATION

When the Humidifier Control detects the need for humidity, and provided

the humidifier is turned on and the HVAC system blower is operating,

the internal controller in the humidifier energizes the electrodes and

measures the current flowing through the water between them. The

controller adjusts water level in the canister via a fill valve and a drain

valve to maintain a constant current. The operating water level in the

canister depends on the mineral content of the water which determines

conductivity.

- 7 -- 6 -

END OF SEASON/PERIOD OF INACTIVITY SHUT-DOWN

If the humidifier does not receive a call to operate in 72 hours, the

humidifier controller drains the canister, the drain valve will remain open

for 30 minutes. The drain light will remain on until there is a humidity call

or 24 hours has elapsed. The humidifier will resume normal operation when

a call for humidity is made.

OPERATING MODES

Your Steam Humidifier can be powered with a 120, 208 or 240 volt circuit

and operated at either 11.5 or 16.0 amps. The higher the voltage and

amperage the higher the potential output. The operating voltage and

amperage are set by your installing contractor to meet the humidification

needs of your home.

Amperage Voltage Maximum steam capacity (gal/day)

11.5

120V 11.5

208V 20.5

240V 23.3

16.0

120V 16.0

208V 30.0

240V 34.6

It may take several days for the humidifier to reach rated capacity

depending on the input voltage and the electrical conductivity of

the water. 120 volt systems take longer to reach rated capacity than 240

volt systems. The humidifier should always be plumbed to cold water but

the water can be softened or unsoftened. “Hard” water, which has a high

mineral content, and softened water generally have higher conductivity

than naturally soft water. Systems plumbed to higher conductivity water

will reach capacity sooner than systems plumbed to low conductivity

water. As the humidifier operates, minerals build up in the canister, which

increases the conductivity of the water. With a new canister, allowing the

humidifier to operate continuously (along with the HVAC system blower)

will allow it to reach rated capacity in the shortest amount of time.

Canister life is highly dependent on water quality. Canisters in systems

plumbed to water with high concentrations of suspended and dissolved

solids will not last as long as canisters operating on water with less

minerals.

NOTE: Amperage, Voltage and plumbing changes should be made by a

heating and air conditioning contractor.

INSTALLATION OPTIONS AND EFFECT OF

WATER CHARACTERISTICS When the humidifier is powered and turned on, the “On/Off” light is

illuminated green.

When the canister is being filled or replenished with water, the “Fill” light

illuminates green.

When the canister is being drained, the “Drain” light illuminates green.

During initial start up with a new canister, the humidifier may run through

a series of fill/drain cycles until the conductivity of the water is in a range

that allows normal operation. During this time, the “Steam” light illuminates

green. If the humidifier cannot produce steam at the rated level after 168

hours of operation, the “Steam” light illuminates yellow. The humidifier

continues to operate in this state until the rated output is reached.

The conductivity of naturally soft water, hard water, and softened water

changes as the water heats up, the internal controller adjusts the water

level to maintain a nominal current between the electrodes. Over the

life of the canister, minerals that build up on the electrodes will reduce

their effective surface area and affect the resistance between them. The

operating water level will increase with use until it reaches the high water

level probe. At that point, the “Service” light will flash red indicating that

the canister should be replaced. The humidifier will continue to operate

but with reduced output.

When the humidifier begins a drain cycle, the fill valve opens to introduce

cold water into the canister. This is done to prevent hot water from

entering the drain. The drain valve remains open for four minutes to allow

all water to drain from the canister.

Any time power is disconnected or humidifier is turned off, the internal

timer for start-up and drain cycles is reset.

If the humidifier has operated 168 hours without a drain cycle, the drain

valve will open and drain the canister. Normal operation will continue.

If the humidifier is operating and a power failure occurs, once power

is restored, the “On/Off” light will flash green for one minute, then the

humidifier will turn on.

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The Model 62 Automatic Digital Humidifier Control (ADHC) offers two

modes of operation, Automatic or Manual. An explanation of both modes

follows. (See Figure 2 on page 10 for Automatic Mode. See Figure 3 on

page 12 for Manual Mode.)

When in the Automatic Mode, this system offers the following benefits:

• You will receive the optimum amount of humidity so that your

home and its furnishings are protected from the damaging effects

of excess condensation or low humidity during the heating season.

The ADHC automatically adjusts your home’s humidity based on the

outdoor temperature, increasing the time maximum comfort is maintained.

• Simple operation with few adjustments. In the Automatic Mode, the

ADHC eliminates the need to manually adjust the control when outdoor

temperature changes. It also eliminates the need to turn the dial setting

to “OFF” during the summer season.

OPERATING INSTRUCTIONS – MODEL 62 AUTOMATIC

DIGITAL HUMIDIFIER CONTROL

MODEL 62 AUTOMATIC DIGITAL HUMIDIFIER CONTROL

INDICATOR LIGHTS

Call Dealer for Service: The red light indicates that the control is not

operating normally and that service is required.

Humidifier On: The green light indicates that the control is operating

normally and sending a call for humidity to the humidifier.

BLOWER ACTIVATION

Set the “Blower Activation Switch” to “ON” to allow the humidifier control

to activate the HVAC fan for maximum humidification.

If the HVAC system has been idle for one hour, the humidifier control will

activate the HVAC system fan to sample the air for 3 minutes. If the RH is

lower than the set point, the humidifier control will activate the humidifier

and keep the fan running. The humidifier will continue to operate for 2

hours or until the humidification set point is reached.

If the RH set point has not been reached by the end of a call for heat, the

control will continue to operate the humidifier and the HVAC fan until the

humidification set point is reached or 2 hours have elapsed.

When the “Blower Activation Switch” is in the “OFF“ position, the humidifier

control will only operate the humidifier if humidity is required and the HVAC

system fan is operating or the HVAC system is producing heat.

NOTE: If used in conjunction with an Aprilaire 8570 Communicating

Thermostat, and the blower activation feature is desired, DO NOT wire the

A B communication terminals.

TABLE 1 – Display Panel

Indicator Light Function

Off Humidifier is turned off or not receiving power.

Solid

Green Humidifier is turned on.

Flashing

Green

Humidifier is preparing to turn on. Occurs if power is

disconnected, then restored with switch ON. Flashes for one

minute.

Solid

Green

Normal Operation. Fill valve is energized allowing water

to flow into canister via fill cup. (Does not illuminate when

tempering water during drain cycle.)

Flashing

Green

Fill and Drain Valves are pulsing to dislodge mineral build-up in

canister. Flashes 10 times in four seconds.

Solid Red

Fault Mode. Indicates canister needs water but cannot fill.

Humidifier shuts down. (Occurs if high water probe does not

detect water after fill valve is energized for 40 minutes.) Call

your heating and air conditioning dealer for service.

Solid

Green

Normal Operation. Humidistat is calling for steam and

humidifier is operating.

Solid

Yellow

Normal Operation. Humidifier is operating but is not delivering

steam at rated capacity. Occurs if humidifier has operated

for 168 hours at less than rated capacity due to low water

conductivity. Light will turn green once water conductivity

increases and humidifier is delivering rated capacity.

Flashing

Green

Humidifier is preparing to drain. (Fill valve is open tempering

water in canister.) Occurs when humidifier is turned off, at

end of season drain (72 hours with no operation) and during

forced drain down (168 hours of operation with no drain

activity.)

Fill and Drain Valves are pulsing to dislodge mineral build-up in

canister. Flashes 10 times in four seconds.

Solid

Green

Drain valve is energized and open, draining canister. Valve

remains energized for four minutes.

Indicates end of season shut-down. Occurs if humidifier does

not receive call for humidity in 72 hours. Light remains on

for 24 hours. Humidifier will turn on with the next call for

humidity.

Flashing

Red

Canister has reached the end of its life and needs to be

replaced. Occurs after humidifier has operated for at least 168

hours and for an additional 24 hours at a current level below

75% of the maximum operating current. Humidifier continues

to operate, but at reduced capacity.

Solid Red

Operational problem with humidifier. Humidifier shuts down.

Occurs when unit detects over-current which can be caused

by failure to drain or other system failures. Call your heating

and air conditioning dealer for service.

DISPLAY PANEL

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Your Aprilaire ADHC must be installed in the cold air return duct. During

the first heating season, your Humidifier Control needs to be set initially

to match your home’s condition. Please follow these steps when adjusting

your control (refer to Figure 2).

1. Turn the dial setting knob to “5”, which is within the normal range.

During the next 24-48 hours it may be necessary to adjust the dial for

more or less humidity, depending on your personal comfort and home’s

requirements. Refer to TABLE 2 – ADHC Operation Guide.

2. During the coldest portion of the first heating season, minor adjustments

may be necessary. This is dependent upon your home’s construction.

Refer to TABLE 2 – ADHC Operation Guide.

The humidity in your home will now be accurately controlled to meet

your needs and should not need further adjustment during future heating

seasons. Make note of the dial setting in the event you temporarily move

the knob to “OFF” when performing annual maintenance of your Aprilaire

humidifier.

Your humidifier is a precision system that will accurately maintain the

humidity in your home. For every 2°F change in outdoor temperature, the

Model 62 Automatic Digital Humidifier Control will automatically adjust the

indoor humidity by 1%.

The Model 62 Automatic Digital Humidifier Control will accurately control

the humidity in your home to a maximum of 45%.

The humidity values in Table 3 are targets based on outdoor temperature

and the Digital Humidifier Control setting. The actual humidity may vary

due to conditions in the home (cooking, showering, etc.).

AUTOMATIC MODE

FIGURE 2 – Automatic Mode

90-1235B

TABLE 3 – % Relative Humidity Guide

Outdoor Temperature (°F)

-10°F 0°F 10°F 20°F 30°F 40°F

110% 10% 10% 15% 20% 25%

210% 10% 15% 20% 25% 30%

310% 15% 20% 25% 30% 35%

415% 20% 25% 30% 35% 40%

520% 25% 30% 35% 40% 45%

625% 30% 35% 40% 45% 45%

730% 35% 40% 45% 45% 45%

Dial Setting

Relative Humidity (%)

TABLE 2 – ADHC Operation Guide

Condition Solution

Condensation on windows. Reduce the setting on the control dial by 1

increment.

Lack of humidity. Increase the setting on the control dial by 1

increment.

Humidifier does not turn on. Make certain HVAC blower is operating. Turn

dial to “Test/Reset”. If unit still does not

operate, consult a heating contractor. Display

will flash software revision level e.g. r1, if the

control knob is left in test/reset for longer than

1 minute.

Humidifier won’t shut off. Turn control dial to “Off”. If unit continues to

produce steam (steam light on), disconnect

main power to turn off the humidifier and

consult a heating contractor.

Test mode. Make certain HVAC blower is operating.

System operation is checked by setting the

knob to “Test/Reset”. Humidifier will operate

for one minute.

Red “Call Dealer for Service” light

flashes (Figure 2).

Note the error code on the display (E1,

E2, E3 or E4) and call your heating and air

conditioning dealer for service.

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TABLE 4 – Outdoor Temperature and Recommended Indoor RH Setting

Outdoor Temperature Recommended Indoor RH Setting

+40°F 45%

+30°F 40%

+20°F 35%

+10°F 30%

0°F 25%

-10°F 20%

-20°F 15%

TEST/RESET

The Test/Reset feature allows the humidifier operation to be checked even

if there is no call for humidity. See “Check the Humidifier Operation”.

DIGITAL HUMIDIFIER CONTROL

Set the knob to “Test/Reset”, make sure that the water saddle valve is

open and that the humidifier is on. The HVAC fan must be running for the

humidifier to function. The humidifier will only operate for 1 minute in test

mode. Reduce the Humidifier Control setting to the recommended inside

humidity, depending on the outside temperature. DO NOT LEAVE IN

TEST MODE AS HUMIDIFIER WILL NOT OPERATE.

CHECK THE HUMIDIFIER OPERATION

MANUAL MODE

When installed in the Manual Mode (see Figure 3 – internal switch in “MAN”

position and “M” in the display), it is important to anticipate a drop in outdoor

temperature and reduce the setting accordingly to avoid excessive condensation.

For example, with an outdoor temperature of 20°F the recommended setting will

be 35%. If the temperature is expected to fall to 0°F that evening, then merely

reduce the setting to 25% several hours prior to the temperature change.

See Table 4 for the recommended settings. These settings, which are based

on years of research, represent a compromise between humidity levels that

would be most desirable for comfort and humidity levels that are suitable

for protection of your home and to avoid condensation on your windows. For

example, a wintertime indoor humidity of 50% may be considered ideal for

comfort, but unfortunately, it probably would result in condensation, which

can cause damage to your home. Observing the recommended humidity

levels on your Humidifier Control is an important safeguard. Condensation

of water on the inside surface of windows in the form of fogging or frost

is usually an indication of too much humidity. This same condensation can

occur in other areas in your home, possibly resulting in damage.

FIGURE 3 – Manual Mode

90-1236B

- 14 - - 15 -

Apply the RH setting label to the front cover if you want a guideline for

setting the control according to outdoor temperature. Since all houses are

different, you will need to determine exactly where to set the control so

that you have enough humidity to meet your needs, but not so much as to

cause excess condensation on windows or other cold surfaces.

CAUTION

Do not adjust humidity set-point above recommended level or to

recommended level if condensation occurs on inside surface of

windows or on other surfaces. Excess condensation can cause

damage to structure or furnishings. Excess moisture can also

allow the possibility for mold growth to occur.

When the control is first powered up, it will display “30%”, which is the

default setting.

OPERATING INSTRUCTIONS –

MODEL 65 MANUAL DIGITAL HUMIDISTAT

FIGURE 4 – Control Display and User Buttons

LCD Display

Mode Buttons – Use

to turn control On/Off.

Buttons –

Use to view and

adjust relative

humidity setting.

RH Setting Label

FIGURE 5 – LCD Display

90-1670

Blinking ON +*: Temp Limits Exceeded.

See Operating Limits, page 16.

Solid ON:

Control On

Blinking ON:

Humidifying

Numbers show

current room humidity

OR humidity setting

SET is displayed

when or is

pressed. The value

displayed is the

relative humidity

setting.

OFF: Control Off

TURNING CONTROL ON & OFF

Begin by pressing the ON button. “ON” will appear on the display. This

means the control is on, but it does not necessarily mean the humidifier

is running. In order for the control to turn on your humidifier, several

conditions must be met:

1) The control and humidifier must be powered,

2) the RH level in the conditioned space must be below the set point, and

3) your furnace or furnace blower must be running.

When these conditions are met and the humidifier is operating, “ON” will

blink in the control display.

NOTE: If you have an Aprilaire Model 800 Steam Humidifier and a Model

850 Fan Pack, they will operate independently of any HVAC (Heating,

Ventilating and Air Conditioning) equipment.

To disable the humidifier, press the OFF button. The control will remain on

and display “OFF” plus the actual RH but will not allow the humidifier to

operate. The control must be ON in order to adjust the RH setting.

SETTING THE DESIRED RH LEVEL

Use the and buttons to display and raise or lower the RH setting.

When pressing the and buttons, “SET” and the RH setting will be

displayed. Each press of the buttons will change the setting by 1% RH.

If a button is pressed and held, the setting will change 1% RH every 1/2

second. “SET” will disappear and the display will once again show the

actual RH 5 seconds after the buttons are pressed.

- 16 - - 17 -

TABLE 5 – Outdoor Temperature and Recommended Indoor RH Setting

Outdoor Temperature Recommended Indoor RH Setting

+40°F 45%

+30°F 40%

+20°F 35%

+10°F 30%

0°F 25%

-10°F 20%

-20°F 15%

OPERATING LIMITS

If the temperature in the space to be conditioned drops below 40°F or

rises above 99°F, the control will not allow the humidifier to operate.

Under these conditions, the display will blink “ON” and “*”. Once the

temperature is in the normal operating range, the control will once again

allow the humidifier to operate and the blinking “ON” and “*” will no

longer be displayed.

ADJUSTING THE RH DISPLAY OFFSET

AUTOMATIC DIGITAL MODULATING CONTROL INTERFACE

If you have another device that displays RH in your home, it may not

match the Model 65 Control display due to placement or a difference in

calibration. If you want the devices to match, the RH displayed by the

Model 65 control can be adjusted higher or lower by up to five percentage

points. Allow the control to acclimate to the space for 48 hours before

adjusting the offset.

The control must be on in order to adjust the offset. Press and hold the

OFF button for 5 seconds or until the display shows a value between -5%

and +5%. Use the and buttons to adjust the offset. The control will

revert back to the normal display mode after 5 seconds.

OPERATING INSTRUCTIONS – MODEL 63 AUTOMATIC

DIGITAL MODULATING CONTROL

Symbols on Display

Humidification ON

Low, Medium, High demand.

Percentage of humidity

or °C: Celsius scale

°F: Fahrenheit scale

Menu set-up Lock

Programming mode

(Technician setting)

Alarm status

The Aprilaire®Model 63 Automatic Digital

Modulating Control (ADMC) offers precise control

of the humidity in your home by providing a variable

output based on the difference between the set

point and the sensed humidity.

The Automatic Digital Modulating Control offers

two modes of operation, Automatic or Manual.

An explanation of both modes follows. When in

Automatic Mode, this system offers the following

benefits:

• You will receive the optimum amount of humidity so that your

home and its furnishings are protected from the damaging effects

of excess condensation or low humidity during the heating

season. The ADMC automatically adjusts your home’s humidity based

on the outdoor temperature, increasing the time maximum comfort is

maintained.

• Simple operation with few adjustments. In the Automatic Mode, the

ADMC eliminates the need to manually adjust the control when outdoor

temperature changes.

- 18 - - 19 -

TABLE 6 – ADMC Operation Guide

Condensation on

windows.

Reduce the setting on the control by 5%.

Lack of humidity. Increase the setting on the control by 5%.

Humidifier does

not turn on.

Check that set point is higher than sensed humidity.

Make certain HVAC blower is operating and humidifier is

On. If humidifier still does not operate consult a heating

contractor.

Humidifier won’t

shut off.

Turn ADMC Off. If humidifier continues to produce steam

(humidifier steam light On), disconnect main power to

turn off the humidifier and consult a heating contractor.

“OFF”, “– – –“

and alarm symbol

are displayed.

The humidity sensor is not connected or is short circuited.

Consult a heating contractor.

“– – –“ is

displayed.

The temperature sensor is not connected or is short

circuited. Consult a heating contractor.

TABLE 7 – ADMC Maximum Set Point

for Outdoor Temperature

Outdoor

Temperature

°F (°C)

Maximum

Setpoint

(%RH)

20 (-7) 35%

10 (-12) 30%

0 (-18) 25%

-10 (-23) 20%

-20 (-29) 15%

The humidity in your home will

now be accurately controlled

to meet your needs and should

not need further adjustment

during future heating seasons.

The Aprilaire ADMC measures

outdoor temperature and

automatically adjusts the set

point to prevent condensation

and damage. Table 7 shows the

maximum Humidistat set point

the ADMC will allow for various

outdoor temperatures.

If an outdoor temperature

sensor cannot be installed or the

application requires a specific

RH set point, the ADMC can be

configured to Manual Mode. In

Manual Mode, the humidifier

and control will maintain a

constant RH, regardless of

outdoor temperature.

It is important to anticipate a

drop in outdoor temperature

and reduce the setting

accordingly to avoid excessive

condensation. See Table 8 for

the recommended settings. These settings are based on years of research,

represent a compromise between humidity levels that would be most

desirable for comfort and humidity levels that are suitable for protection

of your home and to avoid condensation on your windows. For example, a

wintertime indoor humidity of 50% may be considered ideal for comfort, but

unfortunately, it probably would result in condensation, which can cause

damage to your home. Observing the recommended humidity levels on your

ADMC is an important safeguard. Condensation of water on the inside

surface of windows in the form of fogging or frost is usually an indication

of too much humidity. This same condensation can occur in other areas in

your home, possibly resulting in damage.

TABLE 8 – Outdoor Temperature and

Recommended Indoor RH Setting

Outdoor

Temperature

Recommended

Indoor RH Setting

+40°F 45%

+30°F 40%

+20°F 35%

+10°F 30%

0°F 25%

-10°F 20%

-20°F 15%

MANUAL MODE

BLOWER ACTIVATION

AUTOMATIC MODE

The blower Activation feature provided with the Model 63 ADMC turns the

HVAC system fan on when there is a call for humidity.

During the first heating season, your ADMC needs to be set to match

your home’s condition. The ADMC default set point is 40% RH. Follow

these steps when adjusting your control.

1. For the first 24-48 hours of operation, it may be necessary to adjust the

set point for more or less humidity, depending on your personal comfort

and home’s requirements. Refer to Table 6 – ADMC Operation Guide.

2. During the coldest portion of the first heating season, minor adjustments

may be necessary. This is dependent on your home’s construction. Refer

to Table 6 – ADMC Operation Guide.

- 20 - - 21 -

Be sure to keep fireplace dampers closed when not in use. They provide

an excellent escape route for heat, as well as humidity.

On occasion, indoor moisture producing activities such as clothes drying,

cooking, showers, etc., may raise the humidity level higher than it

should be, even though the Aprilaire humidifier is not operating. Telltale

indications are condensation or frost on cold surfaces such as windows,

doors, walls, etc. If such condensation persists for several hours, your home

should be ventilated to dissipate the potentially damaging excess moisture.

ADDITIONAL INFORMATION

MAINTENANCE

Turn humidifier off and allow humidifier to drain. Disconnect

power before servicing.

Inspect Humidifier at approximately 500 hour intervals or several times

during the humidification season.

• Check system operation and inspect all plumbing connections and piping

for signs of cracks or leaks.

• Inspect drain line to make sure it is not blocked and has constant

downward slope. Clean or replace if necessary.

• Inspect steam hose to make sure it has no low spots and has constant

upward slope from humidifier to dispersion tube in duct. If dispersion

tube is mounted below humidifier, inspect drip tee drain.

Replace the canister annually and when prompted by the “Service” light.

Use Only Genuine Aprilaire Model 80 Canister.

1. Press On/Off switch to turn humidifier off. Humidifier will drain for four

minutes.

2. Allow humidifier to drain. When the green “drain” LED stops flashing,

disconnect main electrical power to humidifier.

3. Remove front panel.

4. Pull three wires off posts on top of canister. (Two large electrode

conductors and one water level probe conductor.)

5. Loosen hose clamp at top of canister.

6. Slide hose off top of canister.

7. Slide canister up and out of drain assembly. Discard canister.

8. Remove o-ring from drain assembly using small screw driver.

9. Inspect drain assembly and remove any debris. See drain valve cleaning

procedure in Installation & Maintenance manual.

10. Insert new o-ring into slot in drain assembly. (O-ring is provided with

Model 80 canister.) Dampen o-ring with water before inserting canister.

Do not use oil, grease, or any lubricant besides water.

11. Make sure strainer is inserted into bottom of new canister.

12. Insert canister into drain assembly. Position canister with label facing

outward.

13. Slip steam hose over top of canister and tighten hose clamp.

14. Reattach and fully seat three wires to posts on top of canister. (Larger

electrode conductors are interchangeable.)

15. Replace front panel.

16. Inspect drain line to make sure it is not blocked and has constant

downward slope. Clean or replace if necessary.

17. Inspect steam hose to make sure it has no low spots and has constant

upward slope from humidifier to dispersion tube in duct. If dispersion

tube is mounted below humidifier, inspect drip tee drain.

18. Restore electrical power to humidifier.

19. Turn humidifier on and verify green On/Off light is illuminated.

20. See Start-up procedure in Installation, Operation & Maintenance manual.

TO REPLACE THE CANISTER

TO SERVICE FILL VALVE

If water flow from fill valve is restricted, disconnect inlet fitting and remove

in-line strainer using small screw from inlet port. Clean or replace strainer.

- 22 -

Visit us on-line at www.aprilaire.com to register your Aprilaire product.

If you do not have on-line access, please mail a postcard with your name, address,

phone number, model number of product purchased and date of installation to:

Research Products Corporation, P.O. BOX 1467, Madison, WI 53701

Your Warranty Registration information

will not be sold or shared outside of this company.

WARRANTY REGISTRATION

Your Research Products Corporation Aprilaire®humidifier unit is expressly warranted for five

(5) years from date of installation to be free from defects in materials or workmanship except,

however, for the disposable steam canister which will have to be replaced from time to time

depending upon the amount of use.

Research Products Corporation’s exclusive obligation under this warranty shall be to supply,

without charge, a replacement for any part of the humidifier which is found to be defective within

such five (5) year period and which is returned not later than thirty (30) days after said five (5)

year period by you to either your original supplier or to Research Products Corporation, Madison,

Wisconsin 53701, together with the model number and installation date of the humidifier.

THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR

COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY

YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE HUMIDIFIER ITSELF.

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

SHALL BE LIMITED IN DURATION TO THE AFORESAID FIVE YEAR PERIOD. RESEARCH PRODUCTS

CORPORATION’S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, OTHER THAN

DAMAGES FOR PERSONAL INJURIES, RESULTING FROM ANY BREACH OF THE AFORESAID

IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED.

THIS LIMITED WARRANTY IS VOID IF DEFECT(S) RESULT FROM FAILURE TO HAVE THIS UNIT

INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR. IF THE LIMITED

WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR, ALL DISCLAIMERS

OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or

limitation of incidental or consequential damages so the above exclusion or limitations may not

apply to you.

This warranty gives you specific legal rights and you may also have other rights which vary from

state to state.

LIMITED WARRANTY

P.O. Box 1467 • Madison, WI 53701-1467 • Phone: 800/334-6011 • Fax: 608/257-4357

www.aprilaire.com

10010990 8.14

B2206542A

Printed in U.S.A.

Rendez-vous en ligne sur www.aprilaire.com pour enregistrer votre produit Aprilaire.

Si vous n’avez pas accès à Internet, veuillez envoyer une carte postale en indiquant

votre nom, adresse, numéro de téléphone, le numéro de modèle du produit acheté

et la date de l’installation à :

Research Products Corporation, P.O. BOX 1467, Madison, WI 53701 É.-U.

Les renseignements de l’enregistrement de votre garantie ne seront ni vendus,

ni partagés à l’extérieur de notre entreprise.

ENREGISTREMENT DE LA GARANTIE

Votre humidificateur Aprilaire®de Research Products Corporation est expressément garanti pendant cinq (5)

ans à compter de la date d’installation d’être libre de défauts de matériaux ou de fabrication, à l’exception,

cependant, de la cartouche à vapeur qui doit être remplacée de temps à autre selon le niveau d’utilisation.

L’obligation exclusive de Research Products Corporation en vertu de cette garantie sera de fournir gratuitement

toute pièce de rechange pour l’humidificateur qui serait défectueuse durant une telle période de cinq (5) ans

et renvoyée au plus tard dans un délai de trente (30) jours après ladite période de cinq (5) ans par vous, soit au

fournisseur original, soit à Research Products Corporation, Madison, Wisconsin 53701 É.-U. avec le numéro de

modèle et la date d’installation de l’humidificateur.

CETTE GARANTIE N’OBLIGE PAS RESEARCH PRODUCTS CORPORATION À COUVRIR LES FRAIS DE MAIN

D’OEUVRE ET NE S’APPLIQUE PAS AUX DÉFAUTS DE FABRICATION OU DE MATÉRIAUX FOURNIS PAR VOTRE

INSTALLATEUR, CONTRAIREMENT AUX DÉFAUTS DE L’HUMIDIFICATEUR LUI-MÊME.

LES GARANTIES IMPLICITES DE VALEUR MARCHANDE OU D’ADAPTATION À UN USAGE PARTICULIER SE

LIMITENT EN DURÉE À LA PÉRIODE DE CINQ ANS CI-MENTIONNÉE. LA RESPONSABILITÉ DE RESEARCH

PRODUCTS CORPORATION EN CAS DE DOMMAGES INDIRECTS OU CONSÉCUTIFS, AUTRES QUE LES

DOMMAGES POUR DES BLESSURES, RÉSULTANT D’UNE INFRACTION AUX GARANTIES IMPLICITES

SUSMENTIONNÉES OU À LA GARANTIE LIMITÉE CI-MENTIONNÉE EST EXPRESSÉMENT EXCLUE. CETTE

GARANTIE LIMITÉE EST NULLE ET SANS EFFET SI LE(S) DÉFAUT(S) RÉSULTE(NT) DU FAIT QUE VOUS N’AVEZ PAS

FAIT INSTALLER CETTE UNITÉ PAR UN PROFESSIONNEL DU CHAUFFAGE ET DE LA CLIMATISATION QUALIFIÉ.

SI LA GARANTIE LIMITÉE DEVIENT NULLE ET SANS EFFET PARCE QUE VOUS N’AVEZ PAS FAIT APPEL À UN

PROFESSIONNEL QUALIFIÉ, TOUTES LES CLAUSES DE NON-RESPONSABILITÉ DES GARANTIES IMPLICITES

ENTRENT EN VIGUEUR AU MOMENT DE L’INSTALLATION.

Certaines provinces n’autorisent pas les limites sur la durée d’une garantie implicite ou l’exclusion ou la

limitation des dommages consécutifs ou indirects. Le cas échéant, les limitations ou l’exclusion susmentionnées

peuvent ne pas s’appliquer à vous.

Cette garantie vous confère des droits juridiques précis et pouvez aussi avoir d’autres droits qui varient d’une

province à l’autre.

GARANTIE LIMITÉE

P.O. Box 1467 • Madison, WI 53701-1467 É.-U. • Téléphone : 800/334-6011

Fax : 608/257-4357 • www.aprilaire.com

10010990 8.14

B2206542A

Imprimé aux É.-U.

- 20 - - 21 -

Assurez-vous de garder les registres de foyer fermés lorsqu’ils ne sont pas utilisés.

Ils fournissent une excellente voie de sortie pour la chaleur, ainsi que l’humidité.

Parfois, les activités produisant de l’humidité à l’intérieur, comme le séchage des

vêtements, la cuisson, les douches, etc., peuvent augmenter l’humidité au-delà de ce

qu’elle devrait être, même si l’humidificateur Aprilaire ne fonctionne pas. Des indices

sont la condensation ou le givre sur les surfaces froides comme les fenêtres, les portes,

les murs, etc. Si une telle condensation persiste pendant plusieurs heures, votre maison

doit être aérée pour dissiper l’humidité excédentaire possiblement dommageable.

RENSEIGNEMENTS SUPPLÉMENTAIRES

ENTRETIEN

Arrêtez l’humidificateur et laissez-le se vider. Couper l’alimentation

électrique avant d’effectuer l’entretien.

Examinez l’humidificateur à des intervalles d’environ 500 heures ou plusieurs fois

durant la saison d’humidification.

• Vérifiez le fonctionnement du système et inspectez toutes les connexions de

plomberie et de tuyauterie pour vous assurer qu’il n’y ait pas de fissures ou de fuites.

• Inspectez la conduite d’évacuation pour vous assurer qu’elle n’est pas bloquée et

qu’elle ait une inclinaison négative constante. Nettoyez-la ou remplacez-la au besoin.

• Inspectez le boyau à vapeur pour vous assurer qu’il n’ait pas de zones

creuses et qu’il ait une inclinaison positive constante de l’humidificateur au

tube de dispersion dans le conduit. Si le tube de dispersion est monté sous

l’humidificateur, examinez le té d’écoulement et le siphon.

Remplacez la cartouche annuellement et lorsque le voyant « Service » vous l’indique.

Utilisez seulement des cartouches originales Aprilaire modèle 80.

1. Appuyez sur l’interrupteur de marche/arrêt pour éteindre l’humidificateur.

L’humidificateur se videra pendant quatre minutes.

2. Laissez l’humidificateur se vider. Lorsque la DEL verte « Drain » cesse de

clignoter, débranchez l’alimentation électrique principale de l’humidificateur.

3. Retirez le panneau avant.

4. Tirez les trois fils des poteaux sur la partie supérieure de la cartouche. (Deux

gros conducteurs d’électrode et un conducteur de capteur de niveau d’eau.)

5. Desserrez la bride de serrage située sur le dessus de la cartouche.

6. Glissez le boyau du dessus de la cartouche.

7. Glissez la cartouche vers le haut et hors de l’assemblage d’évacuation. Jetez la

cartouche.

8. Retirez le joint torique de l’assemblage d’évacuation au moyen d’un petit tournevis.

9. Examinez l’assemblage du drain et retirez tout débris. Reportez-vous à la procédure

de nettoyage du robinet de purge dans le manuel d’installation et d’entretien.

10. Insérez un nouveau joint torique dans la fente de l’assemblage d’évacuation.

(Le joint torique est fourni avec la cartouche modèle 80.) Humectez le joint

torique avec de l’eau avant de réinsérer la cartouche. N’utilisez pas de l’huile,

de la graisse ou tout autre lubrifiant sauf de l’eau.

11. Assurez-vous que la crépine est insérée dans le fond de la nouvelle cartouche.

12. Insérez la cartouche dans l’assemblage d’évacuation. Placez la cartouche de

manière à ce que l’étiquette soit visible.

13. Glissez le boyau à vapeur sur le dessus de la cartouche et serrez la bride de serrage.

14. Rattachez et appuyez complètement trois fils sur les poteaux situés sur la

partie supérieure de la cartouche. (Les conducteurs d’électrodes plus gros sont

interchangeables.)

15. Replacez le panneau avant.

16. Inspectez la conduite d’évacuation pour vous assurer qu’elle n’est pas bloquée

et qu’elle ait une inclinaison négative constante. Nettoyez-la ou remplacez-la

au besoin.

17. Inspectez le boyau à vapeur pour vous assurer qu’il n’ait pas de zones creuses et

qu’il ait une inclinaison positive constante de l’humidificateur au tube de dispersion

dans le conduit. Si le tube de dispersion est monté sous l’humidificateur, examinez

le té d’écoulement et le siphon.

18. Rétablissez l’alimentation électrique de l’humidificateur.

19. Mettez l’humidificateur en marche et vérifiez que le voyant « On/Off » est allumé.

20. Reportez-vous à la procédure de démarrage dans le manuel d’installation, de

fonctionnement et d’entretien.

POUR REMPLACER LA CARTOUCHE

POUR RÉPARER LE ROBINET DE REMPLISSAGE

Si le débit d’eau du robinet de remplissage est restreint, débranchez le raccord

d’admission et retirez la crépine en ligne du port d’admission au moyen d’un petit

tournevis. Nettoyez ou remplacez la crépine.

- 18 - - 19 -

TABLE 6 – ADMC Operation Guide

Condensation on

windows.

Reduce the setting on the control by 5%.

Lack of humidity. Increase the setting on the control by 5%.

Humidifier does

not turn on.

Check that set point is higher than sensed humidity.

Make certain HVAC blower is operating and humidifier is

On. If humidifier still does not operate consult a heating

contractor.

Humidifier won’t

shut off.

Turn ADMC Off. If humidifier continues to produce steam

(humidifier steam light On), disconnect main power to

turn off the humidifier and consult a heating contractor.

“OFF”, “– – –“

and alarm symbol

are displayed.

The humidity sensor is not connected or is short circuited.

Consult a heating contractor.

“– – –“ is

displayed.

The temperature sensor is not connected or is short

circuited. Consult a heating contractor.

TABLE 7 – ADMC Maximum Set Point

for Outdoor Temperature

Outdoor

Temperature

°F (°C)

Maximum

Setpoint

(%RH)

20 (-7) 35%

10 (-12) 30%

0 (-18) 25%

-10 (-23) 20%

-20 (-29) 15%

The humidity in your home will

now be accurately controlled

to meet your needs and should

not need further adjustment

during future heating seasons.

The Aprilaire ADMC measures

outdoor temperature and

automatically adjusts the set

point to prevent condensation

and damage. Table 7 shows the

maximum Humidistat set point

the ADMC will allow for various

outdoor temperatures.

If an outdoor temperature

sensor cannot be installed or the

application requires a specific

RH set point, the ADMC can be

configured to Manual Mode. In

Manual Mode, the humidifier and

control will maintain a constant

RH, regardless of outdoor

temperature.