Aprilaire Dehumidifier 60 62 User Manual

INSTALLATION

Figure B

Use the “OFF” setting for Model 800

Series humidifiers.

STEP 1: Unpack the Humidifier Control Carton

Make sure all components are present (see Figure A):

Use Setting “A”

A. Humidifier Control

B. Outdoor Temperature Sensor

C. Manual Mode Label

for Model 400 Series

humidifiers in areas

with very hard water.

The indicator will light

after 150 hours of

Water Panel

Indicator

Settings

humidifier operation.

A

C

Use Setting “B”

for Model 400 Series,

and for 500 Series, 600

Series and 700 Series

humidifiers in areas

with very hard water.

The indicator will light

after 300 hours of

B

Figure A

90-1201B

humidifier operation.

STEP 2: Disassemble the Humidifier Control

Use Setting “C” for Model 500 Series,

600 Series and 700 Series humidifiers.

The indicator will light after 600 hours of

humidifier operation.

Remove the knob. Remove the cover by pulling at the bottom and

swinging it out and upward.

90-1202B

STEP 3: Check the Change Water Panel Indicator Setting

This setting will control when the indicator light turns on,

reminding you to change your water panel. If your Control came

with a humidifier, the Control is pre-set for the humidifier. If the

installation site has a 3-month or shorter heating season or very

hard water, you may want to adjust the setting (see Figure B).

The Model 62 shipped with the Model 800 Steam Humidifier is

factory set to “OFF”. The Model 62 does not have the “Change

Water Panel” light on the Control. The Canister Change indicator

for the Model 800 is on the humidifier.

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DUCT (SHEET METAL) MOUNT:

STEP 4: Determine Location for Humidifier Control

and Mount Control

After location for Control is selected, drill a 3/4 inch hole for the

RH sensor (the RH sensor extends from the back of the

Humidifier Control).

Humidifier Control must be mounted on the Return Duct, at least

6 inches upstream of the following (see Figure C):

Use 2 sheet metal screws, 3/4 inch long (not provided), to mount

the Humidifier Control. Use the mounting slot to level the Control,

then secure the Control with the second sheet metal screw.

• Humidifier

• Humidifier Bypass Ductwork (if applicable)

• Fresh Air Intake Ductwork (if applicable)

Make sure the Humidifier Control sensor gasket is seated tightly

around the drilled hole. Do not install Control without gasket.

Ambient operating temperature of the Humidifier Control is to be

from 20°F to 120°F to prevent damage to the control display.

DUCT (FIBER BOARD) MOUNT:

After location for Control is selected, cut a rectangular hole in

the duct board, no smaller than 6-9/16 inches long by 4-3/8

inches wide.

RETURN

DUCT

6" MIN.

HUMIDIFIER

CONTROL

Cut a rectangular piece of sheet metal to fit behind the hole in

duct board for mounting the Humidifier Control.

HUMIDIFIER

Drill a 3/4 inch hole for the RH sensor (the RH sensor extends from

the back of the Humidifier Control) into the sheet metal plate.

COIL

FRESH AIR

INTAKE

Use 2 sheet metal screws, 3/4 inch long (not provided), to mount

the Humidifier Control.

BYPASS

CONNECTION

Make sure the Humidifier Control sensor gasket is seated tightly

around the drilled hole. Do Not Install Control Without Gasket.

Figure C

Secure the sheet metal plate, with the Humidifier Control

mounted, inside the duct (see Figure D).

90-1137

CONTROL REPLACEMENT:

When replacing an existing control, the duct opening left by the

removed control must be covered completely. Locate and install

the new control as instructed previously in Step 4.

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Figure D – Fiber Board Duct Mount

Figure E – Digital Humidifier Control 24V Terminals

CONTROL BOARD

COVER

GASKET

SCREW (x2)

R

C

A

B

ODT

W

G

H

Gf

KNOB

INSIDE OF

RETURN

DUCT

OUTDOOR

TEMPERATURE

SENSOR

FAN SIGNAL

TO HVAC

EQUIPMENT

BASE PLATE

SHEET METAL PLATE

COMMUNICATION

WITH APRILAIRE

8570 THERMOSTAT

HEAT SIGNAL

FROM HVAC

EQUIPMENT

SOLENOID

CONTROL

OUTPUT

RETURN DUCT

RETURN

DUCT

SHEET METAL

PLATE

CUT OPENING IN

RETURN DUCT

24 VAC FROM

HVAC EQUIPMENT

“R” AND “C”

FAN SIGNAL

FROM

THERMOSTAT

90-1203B

90-1397B

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STEP 5: Determine Location for Outdoor

Temperature Sensor

STEP 7: Alternate Location for Outdoor

Temperature Sensor

The location of the Outdoor Temperature Sensor must meet

these three requirements:

WARNING

If Outdoor Temperature Sensor is mounted in an intake

duct or pipe, do not set Blower Activation switch to “ON”.

1. Must be mounted on North, East or West side of house out of

direct sunlight.

2. Must be at least 3 feet from all exhaust vents.

The Sensor can also be mounted in the center of either:

3. Must be above expected snow line (see Figure F).

• PVC fresh air intake pipe for the HVAC system

OR

Incorrect humidity levels will result if these requirements are not

met.

• fresh air intake duct. Mount the sensor with a #8 galvanized

screw.

In both cases, the Sensor must be no more than 3 feet

from the outside wall. See Figure G.

Figure F

NORTH, EAST

OR WEST SIDE

OF HOME

OUTDOOR

TEMPERATURE

SENSOR

If it is not feasible to use the Outdoor Temperature Sensor in any

of the ways described, the Humidifier Control can be installed for

Manual Operation. See “Installing the Humidifier Control for

Manual Operation” and Figure J for details.

SENSOR

BRACKET

Figure G

OUTDOOR

TEMPERATURE SENSOR

LEADS

ABOVE EXPECTED

SNOW LINE

CENTER LINE

90-998

3 FEET MAX.

STEP 6: Locate Existing Access Hole to Outside

A convenient way to get the Sensor wire outside is to make use

of unused wires running to the A/C condensing unit (if

applicable). Other ways are to use existing holes for Cable TV

lines, telephone lines, A/C lines, etc. Read all equipment

instructions beforehand for possible conflicts and warnings.

OUTSIDE WALL

90-999

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When the Blower Activation switch is “ON”, the Humidifier

Control may periodically turn the HVAC blower on to sample the

humidity of the air.

STEP 8: Route the Wire from Control to Sensor

Run wire to the outdoor temperature sensor. Sensor is not

affected by lead lengths less than 300 feet.

Installing the Humidifier Control for

Manual Operation

If it is not feasible to install the Outdoor Temperature

Sensor, the Humidifier Control can be operated in

Manual Mode.

CAUTION

Do not run outdoor temperature sensor alongside

wires carrying high voltage (120 VAC or higher).

Secure the sensor bracket with a #8 screw.

1. Position the Mode Switch in the “MAN” position.

Manual indicator “M” will be displayed.

STEP 9: Attach Sensor Wire to Humidifier Control

Strip wire 1/4 inch, and insert the wires from the Sensor into the

terminals labeled “ODT” on the Humidifier Control. See Figure H

for location of terminals.

2. Apply the Manual Mode Label to the cover,

aligning the sticker and knob holes.

Figure J

Figure H

90-1219B

BLOWER ACTIVATION

Set the Blower Activation Switch to “ON” to allow the Humidifier

Control to activate the furnace fan for additional humidification.

This may be required if the humidifier is mounted on a heat pump

or a furnace with short run cycles.

When the Blower Activation switch is “ON”, the Humidifier

Control will turn on the HVAC blower when humidity is required.

In the “OFF” position, the humidifier will only operate if humidity

is required and the HVAC system is operating.

90-1236B

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• Wire “Gf” on the Model 60 to “G” on the furnace terminal

strip.

STEP 10: Model 60 Wiring for Model 400, 500, 600 and

700 Series Humidifiers – See Figure K

• Wire “W” on the Model 60 to “W” on the furnace terminal

strip.

WARNING

120 volts may cause serious injury from electrical

shock. Disconnect electrical power to the furnace

before starting installation.

• Replace cover and knob.

Figure K – Model 60 Wiring for Model 400, 500, 600

and 700 Series Humidifiers

Strip the wires used for all Humidifier Control terminal

connections 1/4 inch.

NOTES:

ADHC TERMINAL STRIP

POWER

INPUTS

OUTPUTS

• The Model 60 must be continuously powered from “R” and

“C” on the furnace to function properly.

R

C

A

B

ODT

W

G

H

Gf

NORTH, EAST

OR WEST SIDE

OF HOME

• The minimum VA required is 2.0 VA.

OUTDOOR

TEMPERATURE

SENSOR FOR

AUTOMATIC

MODE

• In order for the humidifier to operate, the HVAC blower must

be running and the Model 60 must be calling for humidity.

WIRING DESCRIPTION:

ABOVE EXPECTED

SNOW LINE

• Wire external 24 VAC transformer into a constant power source

other than the heating, ventilating, air conditioning equipment

(HVAC) blower circuit. The transformer can be powered off the

120 VAC line at the junction box before it enters the HVAC

equipment. Connect the 24 volt side of the transformer to one

of the “H” terminals on the humidifier control and to one of the

humidifier solenoid valve wires. Connect the other solenoid

valve wire to the other “H” terminal.

CONNECT

DRAIN LINE

HERE

CONNECT

TO HOT WATER

SUPPLY

R

C

R

C

120 VAC

G

Y

CONTINUOUSLY POWERED

24 VAC TRANSFORMER

PROVIDED WITH HUMIDIFIER

W

THERMOSTAT

FURNACE

90-1510

• Wire “R” and “C” on the Model 60 to “R” and “C” on the

furnace terminal strip.

• Remove the thermostat “G” wire from the furnace terminal

strip and wire it to “G” on the Model 60 control.

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STEP 11: Model 62 Wiring for Model 800 Series Steam

Humidifier – See Figure L

Figure L – Model 62 Wiring for Model 800 Series

Steam Humidifier

WARNING

120/240 volts may cause serious injury from electrical

shock. Disconnect electrical power to the furnace

and humidifier before starting installation.

ADHC TERMINAL STRIP

POWER

INPUTS

OUTPUTS

R

C

A

B

ODT

W

G

H

Gf

Strip the wires used for all Humidifier Control terminal

connections 1/4 inch.

MODEL 800

STEAM HUMIDIFIER

NOTES:

OUTDOOR TEMPERATURE SENSOR

FOR AUTOMATIC MODE

• The Model 62 must be continuously powered from “R” and

“C” on the furnace to function properly.

• The minimum VA required is 2.0 VA.

R

C

G

Y

W

R

C

G

Y

W

THERMOSTAT

• In order for the humidifier to operate, the HVAC blower must

be running and the Model 62 must be calling for humidity.

WIRING DESCRIPTION:

FURNACE

• Wire “H” terminals on the Model 62 to the “Humidifier”

terminals on the Model 800 control board.

90-1511

• Wire “R” and “C” on the Model 62 to “R” and “C” on the

furnace terminal strip.

• Remove the thermostat “G” wire from the furnace terminal

strip and wire it to “G” on the Model 62 control.

• Wire “Gf” on the Model 62 to “G” on the furnace terminal

strip.

• Wire “W” on the Model 62 to “W” on the furnace terminal

strip.

• Replace cover and knob.

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Blower Activation Test

SYSTEM CHECKOUT

• Deactivate HVAC system or heat pump.

• Turn knob to OFF.

1. Replace the cover by snapping it into the Humidifier Control

base. Also replace the knob onto the Control.

• Set switch to Blower Activation ON.

2. Turn Blower Activation switch to OFF

• Turn the knob to Test/Reset. The Humidifier On light will

illuminate. After 5 seconds, the green “Humidifier On” light

will blink, indicating a system reset.

3. Restore power to the HVAC system.

4. Activate the HVAC system or heat pump (Fan or Heat).

• If the Humidifier Control and humidifier are set up properly,

the solenoid valve should click and the HVAC blower

should activate.

5. Once the blower is operating, rotate the knob of the

Humidifier Control Clockwise to the “Test/Reset” position.

When the knob is set in the “Test/Reset” position, the green

“Humidifier On” light will illuminate. After 5 seconds, the

green “Humidifier On” light will blink, indicating a system

reset.

• If the humidifier does not activate with the Humidifier

Control in the “Test/Reset” position, refer to the

troubleshooting guide.

6. If the Humidifier Control and humidifier are set up properly,

you should hear the solenoid valve click into the open

position. On the Model 800 Steam Humidifier, the “Steam”

light will illuminate green. In the “Test/Reset” position, the

humidifier will operate for 1 minute. If the Humidifier Control

is left in the “Test/Reset” position for more than 1 minute,

the “H” terminals will open (closing the solenoid valve), and

the knob and display backlights will flash, indicating that the

Humidifier Control is still in the “Test/Reset” position.

• If HVAC blower does not activate with the Humidifier

Control in the "Test/Reset" position, refer to the

troubleshooting guide.

8. Setting the Humidifier Control:

• If the home is occupied, set the Humidifier Control to

“Normal”. (For Manual Mode, set to 35%.)

• If the home is vacant, set the Humidifier Control to “OFF”.

• If in Manual Mode and system is installed during cooling

season, set the Humidifier Control to “OFF”.

7. If the humidifier does not activate with the Humidifier Control

in the “Test/Reset” position, refer to the troubleshooting

guide.

9. Instruct the homeowner to refer to the Aprilaire Owner’s

Manual for the initial adjustment period.

10. Make sure the red “Call Dealer for Service” light is not

flashing. If the red “Call Dealer for Service” light is flashing,

refer to the troubleshooting guide.

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TROUBLESHOOTING PROCEDURE (CONTINUED)

TROUBLESHOOTING GUIDE

3. Rotate Humidifier Control knob to the “Test/Reset” position.

After 5 seconds, the green “Humidifier On” light will blink,

resetting the error. If E3 returns, replace the Humidifier

Control.

SYMPTOM

Call Dealer For Service Light Flashing (see Figure M).

TROUBLESHOOTING PROCEDURE

Manual Mode (switch in “MAN” position)

Applies to both Automatic and Manual Operation unless

indicated otherwise.

1. Make sure the ODT terminals are clear of any wires that

may short the terminals together other than the ODT sensor.

Display Error Code: E1: RH Sensor

2. Rotate Humidifier Control knob to the “Test/Reset” position.

After 5 seconds, the green “Humidifier On” light will blink,

resetting the error. If E3 returns, replace the Humidifier

Control.

Rotate Humidifier Control knob to the “Test/Reset” position.

After 5 seconds, the green “Humidifier On” light will blink,

resetting the error. If E1 returns, replace the Humidifier Control.

Display Error Code: E4: Communication

Display Error Code: E2: Control Knob

This error applies to systems wired to an Aprilaire Model 8570

Thermostat (see Figure Q) using the “A” and “B” terminals.

Rotate the Humidifier Control knob to the “Test/Reset”

position. After 5 seconds, the green “Humidifier On” light will

blink, resetting the error. If E4 returns, check the wiring

between the Digital Humidifier Control and Model 8570 check

the connections at “A”and “B” on the humidifier control and

the Model 8570. Make sure the Model 8570 is wired and

operating properly according to the Model 8570 manual.

Rotate Humidifier Control knob to the “Test/Reset” position.

After 5 seconds, the green “Humidifier On” light will blink,

resetting the error. If E2 returns, replace the Humidifier Control.

Display Error Code: E3: Outdoor Temperature Sensor

Auto Mode (switch in “AUTO” position)

1. Make sure that the Outdoor Temperature Sensor is properly

connected to the ODT terminals on the Humidifier Control.

2. Measure the resistance of the Outdoor Temperature Sensor

by removing the leads from the Humidifier Control terminals

and measuring the resistance across the wires with an

ohmmeter. Confirm the reading with the temperature in

Table 1 on page 22. Reconnect the ODT Sensor leads. If the

resistance value does not match the temperature value,

replace the Outdoor Temperature Sensor.

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TABLE 1

SYMPTOM

Outdoor Temperature (°F) Resistance (kΩ) 10

Humidifier does not operate in “Test/Reset” mode.

-30

-20

-10

0

231.8

163.4

117.3

84.8

62.2

46.1

34.4

26.1

19.9

15.3

11.9

9.3

TROUBLESHOOTING PROCEDURE

• Check wiring diagrams for correct Humidifier Control

installation

10

20

30

40

50

60

70

80

90

100

• Make sure that the blower is operating and the HVAC

system is calling for heat.

• Check wiring diagrams for correct Humidifier Control

installation.

• If connected to a Model 400 Series humidifier, make sure

both floats in the bottom of the scale control insert are in

the down position. If necessary, dump out water to lower

the floats.

7.3

5.8

Figure M

• Check voltage at the Humidifier Control “R” and “C”

terminals. Voltage should be 22 VAC minimum to 30 VAC

maximum.

Red “Call Dealer For Service” Light

Yellow “Change Water Panel” Light

Green “Humidifier On” Light

• Make sure that the saddle valve is open.

• In “Test/Reset mode, the humidifier will operate for 1

minute only. DO NOT LEAVE THE HUMIDIFIER CONTROL IN

“TEST/RESET” MODE AS THE HUMIDIFIER WILL NOT

OPERATE.

90-1227

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SYMPTOM

Humidifier operates only in “Test/Reset” mode.

Yellow “Change Water Panel” light is blinking (see Figure M).

• If outdoor temperature is greater than 60°F or less than

-30°F, the Humidifier Control will only operate in the

“Test/Reset” mode (for 1 minute).

TROUBLESHOOTING PROCEDURE

Check the condition of the Water Panel and replace it if

mineral deposits are blocking air flow. Follow the instructions

on the Water Panel box. Rotate the knob to the “Test/Reset”

position for at least 5 seconds to reset Water Panel change

timer. Check that the timer setting is correct for the humidifier

model and water conditions (see Figure B). DO NOT LEAVE

THE HUMIDIFIER CONTROL IN “TEST/RESET” MODE AS THE

HUMIDIFIER WILL NOT OPERATE.

• If the humidity level in the home is higher than the

Humidifier Control knob setting, the Humidifier Control will

not operate the humidifier.

TROUBLESHOOTING PROCEDURE

• Measure the resistance of the Outdoor Temperature Sensor

by removing the leads from the Humidifier Control terminals

and measuring the resistance across the wires with an

ohmmeter. Confirm the reading with the temperature in

Table 1. Reconnect the ODT Sensor leads. If the resistance

value does not match the temperature value, replace the

Outdoor Temperature Sensor.

• Make sure that the Outdoor Temperature Sensor is mounted

completely outside the house on the North, East or West

side of the house and out of direct sunlight. (Automatic

Mode Only)

• Make sure that the Outdoor Temperature Sensor is located

at least 3 feet away from all exhaust vents. (Automatic

Mode Only)

• If Outdoor Temperature Sensor is mounted in the fresh air

intake duct, make sure that the sensor is no more than 3

feet from the outside wall. (Automatic Mode Only)

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SYMPTOM

Humidifier operates constantly.

Humidifier or Humidifier Control “chatters” or clicks On and

Off rapidly.

• If the humidity level in the home is less than the Humidifier

Control knob setting and there is a continuous fan call or

heat call (depending on setup), the Humidifier Control will

operate the humidifier until the humidity level is higher than

the Humidifier Control knob setting.

TROUBLESHOOTING PROCEDURE

• Check for steady 22 VAC to 30 VAC across the “R” and “C”

terminals of the Humidifier Control with a voltmeter.

• Check, with a voltmeter, that the HVAC signal across the

“W” and “C” and “G and C” terminals of the Humidifier

Control is a steady 22 VAC to 30 VAC.

TROUBLESHOOTING PROCEDURE

• Set Blower Activation switch to OFF.

• Make sure that the Outdoor Temperature Sensor wiring is

not running alongside other wires carrying high voltage

(120 VAC or higher). (Automatic Mode Only)

• In the “Test/Reset” mode, verify that the humidifier turns off

after 1 minute.

• Check the Outdoor Temperature Sensor resistance and

location, as instructed on the previous page.

• Rotate the Humidifier Control knob counterclockwise to the

“Off” position, and observe whether the humidifier turns

off. If the humidifier still operates in the “Off” position,

perform the following:

SYMPTOM

Humidifier blower does not activate during Blower Activation

Test.

1. Check the wiring diagram for correct Humidifier Control

Installation.

TROUBLESHOOTING PROCEDURE

• Set the Blower Activation Switch to “ON”.

2. Remove the wires from the “H” terminals on the

Humidifier Control. If the humidifier continues to operate,

replace the solenoid valve.

• Check wiring diagrams for correct Humidifier Control

installation.

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RESEARCH PRODUCTS CORPORATION

P.O. BOX 1467 • MADISON,WI 53701-1467

Call 800/334-6011 • FAX 608/257-4357

10008977 6.10

B2205119A

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