Aprilaire Humidifier 700m User Manual

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.  
CAUTION  
RISK OF PROPERTY AND EQUIPMENT DAMAGE.  
SPECIFICATIONS  
HUMIDIFIER DIMENSIONS  
1. Do not install humidifier where freezing temperatures  
5. Do not connect the Model 700 or 700M power cord to multi-  
speed furnace blower motors or blower motors other than 120  
VAC. Premature component failure may result. Use Research  
Products Corporation Model 50 Current Sensing Relay.  
6. When installing Humidifier Control on a 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 the supply plenum where static  
pressure exceeds 0.4 in. wg.  
Width 152932”  
Height (including solenoid valve  
and drain spud) 18”  
could occur. The water line could freeze and crack  
causing water damage to the home.  
2. Do not install humidifier on the furnace jacket.  
Depth 101132”  
2. SHARP EDGES HAZARD. Sharp  
edges may cause serious injury from cuts.  
Use care when making plenum openings  
and handling ductwork.  
3. Do not install humidifier 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.  
PLENUM OPENING  
1434”W x 14516”H  
WATER FEED RATE  
6 gph  
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.  
ELECTRICAL DATA  
120 VAC-60 Hz, 0.8 AMP  
RECOMMENDED WIRING DIAGRAMS  
INSTALLATION OPTIONS  
(SEE STEP 6 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS)  
Typical Installation  
Alternate Installation  
Model 700  
DIGITAL HUMIDIFIER  
HOT WATER  
RETURN  
RETURN  
CONTROL  
SUPPLY  
SUPPLY  
ADHC TERMINAL STRIP  
POWER  
INPUTS  
OUTPUTS  
Gf  
R
C
A
B
ODT  
W
G
H
H
NORTH, EAST  
OR WEST SIDE  
OF HOME  
OUTDOOR  
TEMPERATURE  
SENSOR FOR  
120 VAC OUTLET  
CONNECT DRAIN LINE HERE  
AUTOMATIC MODE  
CONNECT TO HOT WATER SUPPLY  
R
C
R
C
ABOVE EXPECTED  
SNOW LINE  
G
G
90-921  
BROWN WIRES  
Y
Y
110 VAC  
W
90-1514  
W
THERMOSTAT  
FURNACE  
CONTINUOUSLY POWERED 24 VAC  
TRANSFORMER PROVIDED WITH HUMIDIFIER  
Orientation of Aprilaire Model 700  
and 700M to Cooling Coils  
NOTES  
IMPORTANT  
1. Models 700 and 700M  
are not suitable for  
installation on ducts  
with horizontal airflow.  
Performance will be  
reduced.  
USE 120 VAC POWER SOURCE OTHER THAN FURNACE MOTOR  
Model 700M  
CIRCUIT. HOWEVER, THE TRANSFORMER CAN BE POWERED OFF  
THE HOT 120 VAC LINE BEFORE IT ENTERS THE FURNACE.  
MANUAL CONTROL  
BLANKED OFF  
END OF COIL  
• DO NOT WIRE TRANSFORMER INTO FURNACE BLOWER CIRCUIT.  
24 VAC FURNACE ACCESSORY  
TERMINALS OR TRANSFORMER  
(10VA MINIMUM)  
SHUT-OFF  
(SADDLE VALVE)  
2. When installing the  
Aprilaire humidifier with  
the Aprilaire Digital  
WATER SUPPLY  
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.  
COMMON  
COOLING COILS IN  
WARM AIR PLENUM  
MODEL 50  
CURRENT SENSING RELAY  
(IF REQUIRED)  
HI  
Aprilaire to  
LO  
be installed  
as shown in  
relation to  
IMPORTANT  
WHEN MODEL 50 CURRENT SENSING RELAY IS USED:  
FURNACE  
BLOWER MOTOR  
• WIRE MODEL 50 CURRENT SENSING RELAY  
INTO 24 VAC HUMIDIFIER CONTROL CIRCUIT  
ONLY! DO NOT INSTALL IN TRANSFORMER  
PRIMARY CIRCUIT.  
cooling coils.  
120 VAC  
OUTLET  
90-922  
90-1208  
CONNECT DRAIN LINE HERE  
BROWN WIRES  
RESEARCH PRODUCTS CORPORATION • P.O. BOX 1467 • MADISON, WI 53701-1467 • CALL 800/334-6011 • FAX 608/257-4357  

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