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 |
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SPECIFICATIONS |
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RISK OF PROPERTY AND EQUIPMENT DAMAGE. |
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HUMIDIFIER DIMENSIONS |
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1. Do not install humidifier where freezing temperatures |
5. Do not connect the Model 700 or 700M power cord to multi- |
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Width 15 29⁄32” |
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could occur. The water line could freeze and crack |
speed furnace blower motors or blower motors other than 120 |
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Height (including solenoid valve |
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causing water damage to the home. |
VAC. Premature component failure may result. Use Research |
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and drain spud) 18” |
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2. Do not install humidifier on the furnace jacket. |
Products Corporation Model 50 Current Sensing Relay. |
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Depth 1011⁄32” |
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6. When installing Humidifier Control on a downflow furnace, |
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3. Do not install humidifier on a plenum face where the |
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ensure blower continues to run after a heat call is satisfied to |
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PLENUM OPENING |
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blanked off ends of the cooling coil will restrict air |
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movement through the humidifier. |
eliminate high temperatures from damaging the Control. |
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143⁄4”W x 145⁄16”H |
7. Do not install humidifier where water pressure exceeds |
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4. Do not set humidity level above recommended or to |
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WATER FEED RATE |
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125 psi, since damage to the humidifier may result. Follow |
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recommended level if condensation exists on inside |
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codes in effect concerning pressure reduction. |
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6 gph |
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windows of any unheated space, as condensation |
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damage may result. Excess humidity can cause |
8. Do not install humidifier on the supply plenum where static |
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ELECTRICAL DATA |
moisture accumulation which can allow the possibility |
pressure exceeds 0.4 in. wg. |
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for mold growth in the home. |
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120 VAC-60 Hz, 0.8 AMP |
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RECOMMENDED WIRING DIAGRAMS
(SEE STEP 6 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS)
Model 700
DIGITAL HUMIDIFIER
CONTROL |
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ADHC TER MIN AL |
STR IP |
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POWER |
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INP UTS |
OUTPUTS |
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R C |
A B |
ODT |
W |
G H H Gf |
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NOR TH, EAS T |
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OR WES T SI DE |
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OF |
HOME |
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OUTD OR |
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120 VAC OUTLET |
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TE MP |
ERATURE |
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SEN SOR |
FOR |
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CO NNECT DRAIN LIN E HERE |
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AU TOMA |
TI |
C MO |
DE |
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R |
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CONNECT TO HOT WAT ER SUPPLY |
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R |
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C |
C |
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ABOVE |
EXPECTED |
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G |
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SNOW |
LIN E |
G |
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Y |
Y |
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BRO WN WIR ES |
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110 VAC |
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W |
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W |
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90-1514 |
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TH ER MOSTAT |
FURNACE |
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CO NTINUOUSLY POW ERED 24 VAC |
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TRA NSFO RME R PR OVIDE D WIT H HU MI DIF IE R |
Model 700M
MANUAL CONTROL
IMPORTANT |
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USE 120 VAC POWER SOURCE OTHER THAN FURNAC E MOTOR |
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CIRCUITHOWE. |
VER, THE TRANSFORME |
R CAN BE POWERED OFF |
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THE HOT |
120 VAC LINE BEFORE IT ENTERS THE FURNACE. |
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• DO NOT WIRE TRANSFORM |
ER INTO FURNACE |
BLOWE R CIRCUIT. |
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24 VAC FURNAC |
E ACCESSORY |
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TERMIN |
ALS ORNSFOTRMERA |
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SHUT-O FF |
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(10VA MINIMUM) |
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(SADDL E VALVE) |
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WATER SUPPLY |
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COMMON |
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HI |
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MODEL 50 |
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CURRENT |
SENSIN G RELAY |
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LO |
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(IF REQUIRED) |
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IMPORTANT |
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FURNACE |
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WHEN MODEL 50 CUR |
RENT SENSIN |
G RELAY IS USED: |
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• WIRE MODEL 50 CURRENT SENSING RELAY |
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BLOWE R MOTOR |
120 VAC |
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INTO 24 MIDIVACHU |
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FIER CONTROL CIRCU IT |
OUTLET |
90-1208 |
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ONLY!DO |
NOT INST ALL IN TRANSF |
ORMER |
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PRIM ARY CIRCUIT. |
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CONNE CT DRAIN LINE HERE |
BROWN WI RES |
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INSTALLATION OPTIONS
Typical Installation |
Alternate Installation |
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RETURN |
HOT WATER |
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RETURN |
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SUPPLY |
SUPPLY |
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Orientation of Aprilaire Model 700
and 700M to Cooling Coils
BLANKED OFF
END OF COIL
COOLING COILS IN
WARM AIR PLENUM
Aprilaire to be installed as shown in relation to
cooling coils.
90-922
90-921
NOTES
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 reduced supply air temperature as 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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