READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING INSTALLATION

ATTENTION INSTALLER:

This product must be installed by a qualified heating and air conditioning contractor. Failure to do so could result in serious injury from electrical shock.

This product must be installed in compliance with all local, state and federal codes.

Proper humidification and humidity control also requires that the home be constructed in accordance with local codes and good building practices.

MODEL 600 SERIES HUMIDIFIER

WARNING

1.ELECTRICAL SHOCK HAZARD.

CAUTION

RISK OF PROPERTY AND EQUIPMENT DAMAGE.

SPECIFICATIONS

HUMIDIFIER DIMENSIONS

Disconnect electrical power to the furnace before starting installation. Failure to do so could result in serious injury from electrical shock.

2.SHARP EDGES HAZARD. Sharp

edges may cause serious injury from cuts. Use care when making plenum openings and handling ductwork.

3.RISK OF SCALDING. Water

temperature over 125°F can cause severe burns and scald instantly. Shut off the hot water supply before disconnecting or tapping into any hot water supply line.

1.Do not install humidifier where freezing temperatures could occur. The water line could freeze and crack causing water damage to the home.

2.Do not install humidifier or bypass connection on the furnace jacket.

3.Do not install humidifier or bypass connection on a plenum face where the blanked off ends of the cooling coil will restrict air movement through the humidifier.

4.Do not set humidity level above recommended or to recommended level if condensation exists on inside windows of any unheated space, as condensation damage may result. Excess humidity can cause moisture accumulation which can allow the possibility for mold growth in the home.

5.Do not connect Model 600 or 600M transformer to blower motor wiring. Premature component failure may result.

6.When installing Humidifier Control on downflow furnace, ensure blower continues to run after a heat call is satisfied to eliminate high temperatures from damaging the Control.

7.Do not install humidifier where water pressure exceeds 125 psi, since damage to the humidifier may result. Follow codes in effect concerning pressure reduction.

8.Do not install humidifier on systems with greater than 0.4 in. wg pressure differential between supply and return plenums.

Width (including solenoid valve): 15 38” Height (including drain spud): 15 34” Depth: 101 4

BYPASS DUCT OPENING

6” diameter

PLENUM OPENING

10”W x 12 34”H

WATER FEED RATE

3 gph

ELECTRICAL DATA

24 VAC-60 Hz, 0.5 AMP

RECOMMENDED WIRING DIAGRAMS

(SEE STEP 7 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS)

Model 600

DIGITAL HUMIDIFIER CONTROL

INSTALLATION

OPTIONS

The Model600 and 600M Aprilairecan be installed on eitherthe supplyor returnplenumof a forced air handlingsystemand is easilyreversiblefor installationwith righthand or left hand bypassduct

NORTH, EAST

OR WEST SIDE

OF HOME

OUTDOOR TEMPERATURE

SENSOR FOR

AUTOMATIC MODE

ADHC TERMINAL STRIP

 

POWER

 

 

 

INPUTS

 

OUTPUTS

 

 

R C

 

A B

 

ODT W G

 

H H Gf

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

connections.The humidifierdimensionsand serviceabilitymust be consideredwhen selecting the best locationfor the humidifier.Here are

2 examplesof many typesof installations.

Upflow

SUPPLY

ABOVE EXPECTED

SNOW LINE

90-1510

R

C

G

Y

W

THERMOSTAT

R

C

G

Y

W

FURNACE

YELLOW WIRES

110 VAC

 

 

CONNECT DRAIN

 

 

CONNECT TO

 

LINE HERE

 

 

HOT WATER SUPPLY

 

CONTINUOUSLY POWERED

24 VAC TRANSFORMER

PROVIDED WITH HUMIDIFIER

RETURN

Model 600M

MANUAL CONTROL

IMPORTANT

USE 120 VAC POWER SOURCE OTHER THAN FURNACE MOTOR

CIRCUIT. HOWEVER, THE TRANSFORMER CAN BE POWERED

OFF THE HOT 120 VAC LINE BEFORE IT ENTERS THE FURNACE.

• DO NOT WIRE TRANSFORMER INTO FURNACE BLOWER CIRCUIT.

24 VAC FURNACE ACCESSORY

 

TERMINALS OR TRANSFORMER

 

 

(10VA MINIMUM)

SHUT-OFF

 

 

(SADDLE VALVE)

 

 

WATER SUPPLY

COMMON

 

 

HI

MODEL 50

 

CURRENT SENSING RELAY

YELLOW 24V

 

 

(IF REQUIRED)

LO

SOLENOID

 

 

IMPORTANT

VALVE WIRES

 

 

WHEN MODEL 50 CURRENT

FURNACESENSING RELAY IS USED:

BLOWER MOTOR

• WIRE MODEL 50 CURRENT

 

SENSING RELAY INTO 24 VAC

 

HUMIDIFIER CONTROL

 

CIRCUIT ONLY! DO NOT

90-1207

INSTALL IN TRANSFORMER

 

PRIMARY CIRCUIT.

 

CONNECT DRAIN LINE HERE

Horizontal

RETURN

SUPPLY

90-1079

NOTE

When installingthe Aprilairehumidifierwith the AprilaireDigital HumidifierControl or on a heat pump system, use hot water.The heated water supplementsthe reduced supply air temperatureas added heat for evaporation.

RESEARCH PRODUCTS CORPORATION • P.O. BOX 1467 • MADISON, WI 53701-1467 • CALL 800/334-6011 • FAX 608/257-4357

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Aprilaire 600M specifications Recommended Wiring Diagrams, Installation Options

600M specifications

Aprilaire is a leading brand in the field of indoor air quality, and its series of humidifiers like the 600A, 700M, 400A, 500A, and 600M have been designed for optimal performance and user convenience. These humidifiers are engineered to maintain ideal moisture levels in your home, which is especially important during dry winter months.

The Aprilaire 600A is an advanced model equipped with automatic humidity control. This feature enables the humidifier to adjust moisture levels based on the outdoor temperature, ensuring a comfortable indoor environment throughout the changing seasons. The 600A is also easy to install and integrates seamlessly with your home’s HVAC system, supplying humidity throughout the entire house.

In contrast, the 700M is a manual humidifier option that offers flexibility in controlling humidity levels. This model is particularly suitable for homeowners who prefer a hands-on approach. The 700M can deliver up to 0.75 gallons of moisture per hour, making it effective for larger homes or spaces where humidity needs to be closely monitored.

The Aprilaire 400A and 500A models are geared towards versatility and space efficiency. The 400A, designed for homes with lower humidity requirements, operates quietly and offers a less invasive installation. It is suitable for areas up to 4,000 square feet, making it ideal for many average-sized homes. The 500A, on the other hand, is particularly designed for homes with a higher demand for moisture, providing consistent humidity control for larger spaces.

The Aprilaire 600M is another manual option that combines a straightforward user interface with robust performance. Similar to the 700M, it allows users to manually adjust humidity levels but features a slightly superior output rate.

One of the standout characteristics shared among these models is their ability to minimize the effects of dry air. By maintaining the right humidity levels, these humidifiers help reduce the likelihood of respiratory issues, dry skin, and static electricity, along with protecting wooden furniture and flooring from damage.

Overall, the selection of Aprilaire humidifiers offers something for every homeowner, from automated models that take the guesswork out of humidity control to manual options that provide a personal touch. Each model boasts its unique features while ensuring a healthier and more comfortable living environment year-round.