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 700 SERIES HUMIDIFIER

WARNING

1.ELECTRICAL SHOCK HAZARD.

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.

CAUTION

 

RISK OF PROPERTY AND EQUIPMENT DAMAGE.

1. Do not install humidifier where freezing temperatures

5. Do not connect the Model 700 or 700M power cord to multi-

could occur. The water line could freeze and crack

speed furnace blower motors or blower motors other than 120

causing water damage to the home.

VAC. Premature component failure may result. Use Research

2. Do not install humidifier on the furnace jacket.

Products Corporation Model 50 Current Sensing Relay.

6. When installing Humidifier Control on a downflow furnace,

3. Do not install humidifier on a plenum face where the

ensure blower continues to run after a heat call is satisfied to

blanked off ends of the cooling coil will restrict air

eliminate high temperatures from damaging the Control.

movement through the humidifier.

7. Do not install humidifier where water pressure exceeds

4. Do not set humidity level above recommended or to

125 psi, since damage to the humidifier may result. Follow

recommended level if condensation exists on inside

codes in effect concerning pressure reduction.

windows of any unheated space, as condensation

damage may result. Excess humidity can cause

8. Do not install humidifier on the supply plenum where static

moisture accumulation which can allow the possibility

pressure exceeds 0.4 in. wg.

for mold growth in the home.

 

 

 

SPECIFICATIONS

HUMIDIFIER DIMENSIONS

Width 15 2932

Height (including solenoid valve

and drain spud) 18”

Depth 101132

PLENUM OPENING

1434”W x 14516”H

WATER FEED RATE

6 gph

ELECTRICAL DATA

120 VAC-60 Hz, 0.8 AMP

RECOMMENDED WIRING DIAGRAMS

(SEE STEP 6 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS)

INSTALLATION OPTIONS

Model 700

DIGITAL HUMIDIFIER

CONTROL

NORTH, EAST

OR WEST SIDE

OF HOME

ADHC TERMINAL STRIP

POWER

 

 

 

INPUTS

 

OUTPUTS

 

 

R C

 

A B

 

ODT W G

 

H H Gf

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Typical Installation

Alternate Installation

 

 

RETURN

 

 

HOT WATER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RETURN

 

 

 

 

 

 

 

SUPPLY

 

 

 

 

 

SUPPLY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

TEMPERATURE

SENSOR FOR

AUTOMATIC MODE

ABOVE EXPECTED

SNOW LINE

R

C

G

Y

W

THERMOSTAT

R

C

G

Y

W

FURNACE

120 VAC OUTLET

CONNECT DRAIN LINE HERE

CONNECT TO HOT WATER SUPPLY

BROWN WIRES

110 VAC

90-1514

CONTINUOUSLY POWERED 24 VAC

TRANSFORMER PROVIDED WITH HUMIDIFIER

Orientation of Aprilaire Model 700

90-921

NOTES

IMPORTANT

and 700M to Cooling Coils

Model 700M

MANUAL CONTROL

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

 

 

 

 

 

 

SHUT-OFF

 

 

(10VA MINIMUM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(SADDLE VALVE)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATER SUPPLY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMMON

MODEL 50

HICURRENT SENSING RELAY

Aprilaire to

BLANKED OFF

END OF COIL

COOLING COILS IN

WARM AIR PLENUM

1. Models 700 and 700M

are not suitable for

installation on ducts

with horizontal airflow.

Performance will be

reduced.

2. When installing the

Aprilaire humidifier with

the Aprilaire Digital

Humidifier Control or on

a heat pump system, use

hot water. The heated

water supplements the

LO

(IF REQUIRED)

be installed

reduced supply air

temperature as added

 

IMPORTANT

 

 

FURNACE

WHEN MODEL 50 CURRENT SENSING RELAY IS USED:

 

 

• WIRE MODEL 50 CURRENT SENSING RELAY

 

 

BLOWER MOTOR

120 VAC

 

 

INTO 24 VAC HUMIDIFIER CONTROL CIRCUIT

OUTLET

90-1208

 

ONLY! DO NOT INSTALL IN TRANSFORMER

 

 

 

PRIMARY CIRCUIT.

CONNECT DRAIN LINE HERE

BROWN WIRES

 

 

as shown in relation to cooling coils.

90-922

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 700M specifications Model 700 Series Humidifier

700M, 700 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.