Aprilaire 700 Instructions

READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING INSTALLATION
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.
Proper humidification and humidity control also requires that the home be constructed in accordance with local codes and good building practices.
WARNING
ELECTRICAL SHOCK HAZARD.
1.
Disconnect electrical power to the
furnace before starting installation.
Failure to do so could result in serious
injury from electrical shock.
SHARP EDGES HAZARD.
2. Sharp
edges may cause serious injury from cuts.
Use care when making plenum openings
and handling ductwork.
RISK OF SCALDING.
3. 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.
RECOMMENDED WIRING DIAGRAMS
(SEE STEP 6 ON BACK AND "HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS" FOR DETAILED WIRING INSTRUCTIONS)

Model 700

DIGITAL HUMIDIFIER
CONTROL
NORTH, EAST
OR WEST SIDE
OF HOME
OUTDOOR
TEMPERATURE
SENSOR FOR
AUTOMATIC MODE
R
C
ABOVE EXPECTED
SNOW LINE
G
Y
W
THERMOSTAT
IMPORTANT
Model 700M
USE 120 VAC POWER SOURCE OTHER THAN FURNACE MOTOR
CIRCUIT. HOWEVER, THE TRANSFORMER CAN BE POWERED OFF
MANUAL CONTROL
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)
COMMON
HI
LO
FURNACE
BLOWER MOTOR
ATTENTION INSTALLER:
This product must be installed in compliance with all local, state and federal codes.
MODEL 700 SERIES HUMIDIFIER
RISK OF PROPERTY AND EQUIPMENT DAMAGE.
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 on the furnace jacket.
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.
ADHC TERMINAL STRIP
POWER INPUTS OUTPUTS
R C A B ODT W G H H Gf
120 VAC OUTLET
CONNECT DRAIN LINE HERE
CONNECT TO HOT WATER SUPPLY
R
C
G
Y
W
FURNACE
CONTINUOUSLY POWERED 24 VAC
TRANSFORMER PROVIDED WITH HUMIDIFIER
SHUT-OFF
(SADDLE VALVE)
WATER SUPPLY
MODEL 50
CURRENT SENSING RELAY
(IF REQUIRED)
IMPORTANT
WHEN MODEL 50 CURRENT SENSING RELAY IS USED:
• WIRE MODEL 50 CURRENT SENSING RELAY
120 VAC
INTO 24 VAC HUMIDIFIER CONTROL CIRCUIT
OUTLET
ONLY! DO NOT INSTALL IN TRANSFORMER
PRIMARY CIRCUIT.
CONNECT DRAIN LINE HERE
RESEARCH PRODUCTS CORPORATION • P.O. BOX 1467 • MADISON, WI 53701-1467 • CALL 800/334-6011 • FAX 608/257-4357
CAUTION
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.
Typical Installation
BROWN WIRES
110 VAC
90-1514
Orientation of Aprilaire Model 700
Aprilaire to
be installed
as shown in
relation to
cooling coils.
90-1208
BROWN WIRES
SPECIFICATIONS
HUMIDIFIER DIMENSIONS
Height
INSTALLATION OPTIONS
Alternate Installation
RETURN
SUPPLY
and 700M to Cooling Coils
BLANKED OFF
END OF COIL
COOLING COILS IN
WARM AIR PLENUM
90-922
Width 15 29 ⁄ "
32
(including solenoid valve
18"
and drain spud)
Depth 10 11 ⁄ "
32
PLENUM OPENING
14 ⁄ "W x 14 ⁄ "H
3 5
4 16
WATER FEED RATE
6 gph
ELECTRICAL DATA
120 VAC-60 Hz, 0.8 AMP
HOT WATER
RETURN
SUPPLY
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.