Aprilaire 600M Installation Instructions

The current Model 600 is identical to the previous Model 600A (except the 600A came with a 2nd spare water panel).
READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING
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.
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 7 ON BACK AND "HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS" FOR DETAILED WIRING INSTRUCTIONS)
IMPORTANT
Model 600M
USE 120 VAC POWER SOURCE OTHER THAN FURNACE MOTOR
CIRCUIT. HOWEVER, THE TRANSFORMER CAN BE POWERED
MANUAL CONTROL
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
COMMON
HI
LO
FURNACE
BLOWER MOTOR
Model 600A
AUTOMATIC DIGITAL HUMIDIFIER CONTROL
NORTH, EAST
CONTINUOUSLY POWERED
OR WEST SIDE
24 VAC TRANSFORMER
OF HOME
PROVIDED WITH HUMIDIFIER
IMPORTANT
DO NOT WIRE TRANSFORMER
OUTDOOR TEMPERATURE
INTO FURNACE BLOWER CIRCUIT.
SENSOR OR MANUAL
MODE RESISTOR
ABOVE EXPECTED
SNOW LINE
RESEARCH PRODUCTS CORPORATION • P.O. BOX 1467 • MADISON, WI 53701-1467 • CALL 800/334-6011 • FAX 608/257-4357
ATTENTION INSTALLER:
This product must be installed in compliance with all local, state and federal codes.
LARGE BYPASS HUMIDIFIER MODEL 600M AND 600A
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 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.
(10VA MINIMUM)
MODEL 50
CURRENT SENSING RELAY
(IF REQUIRED)
IMPORTANT
WHEN MODEL 50 CURRENT
SENSING RELAY IS USED:
• WIRE MODEL 50 CURRENT
SENSING RELAY INTO 24 VAC
HUMIDIFIER CONTROL
CIRCUIT ONLY! DO NOT
INSTALL IN TRANSFORMER
PRIMARY CIRCUIT.
R C A B ODT W/G Cf
24 VAC FURNACE ACCESSORY TERMINAL
COMMON
CONSULT FURNACE MANUFACTURER FOR VOLTAGE AND
OPERATION PARAMETERS OF ACCESSORY TERMINALS.
TERMINALS MAY BE LABELED: "HUM", "ACC" OR "EAC"
NOTE: IF 120V, INSTALL 24V TRANSFORMER.
24V ACTIVATED WITH HEAT CALL.
NOTE: SEE CONTROL INSTRUCTIONS FOR OTHER WIRING OPTIONS.
Aprilaire has not updated this manual from the 600A.
CAUTION
5. Do not connect Model 600M or 600A
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.
SHUT-OFF
(SADDLE VALVE)
WATER SUPPLY
YELLOW 24V
SOLENOID
VALVE WIRES
CONNECT DRAIN LINE HERE
H
SHUT-OFF
(SADDLE VALVE)
WATER SUPPLY
YELLOW 24V
SOLENOID
VALVE WIRES
CONNECT DRAIN LINE HERE
Aprilaire Humidifier Parts Drawing 2007

SPECIFICATIONS

HUMIDIFIER DIMENSIONS
Width
(including solenoid valve):
Height
(including drain spud):
Depth
BYPASS DUCT OPENING
6" diameter
PLENUM OPENING
10"W x 12
WATER FEED RATE
ELECTRICAL DATA
24 VAC-60 Hz, 0.5 AMP
INSTALLATION
OPTIONS
The Model 600M and 600A Aprilaire can be
installed on either the supply or return plenum of a
forced air handling system and is easily reversible
for installation with right hand or left hand bypass
duct connections. The humidifier dimensions and
serviceability must be considered when selecting
the best location for the humidifier. Here are 2
examples of many types of installations.
Upflow
90-1207 RETURN
Horizontal
RETURN
NOTE
When installing Aprilaire humidifier on
a heat pump system, use hot water. The
heated water supplements the reduced
90-1204
supply air temperature as added heat
for evaporation.
15 ⁄ Ó
3
8
15 3 ⁄ "
4
10 ⁄ "
1
:
4
3 ⁄ "H
4
3 gph
SUPPLY
SUPPLY
90-1079