Aprilaire Humidifier 600M Users Manual 10008975A AA 600

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FURNACE

BLOWER MOTOR

MODEL 50

CURRENT SENSING RELAY

(IF REQUIRED)

24 VAC FURNACE ACCESSORY

TERMINALS OR TRANSFORMER

(10VA MINIMUM) SHUT-OFF

(SADDLE VALVE)

WATER SUPPLY

YELLOW 24V

SOLENOID

VALVE WIRES

IMPORTANT

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.

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.

CONNECT DRAIN LINE HERE

COMMON

HI

LO

YELLOW WIRES

G

Y

W

C

R

THERMOSTAT

110 VAC

R

C

W

Y

G

FURNACE

OUTDOOR TEMPERATURE

SENSOR FOR

AUTOMATIC MODE

NORTH, EAST

OR WEST SIDE

OF HOME

ABOVE EXPECTED

SNOW LINE

CONTINUOUSLY POWERED

24 VAC TRANSFORMER

PROVIDED WITH HUMIDIFIER

CONNECT TO

HOT WATER SUPPLY

CONNECT DRAIN

LINE HERE

OUTPUTSINPUTSPOWER

G

W

C

RHHODT GfA

ADHC TERMINAL STRIP

B

90-1510

90-1207

Model 600M

MANUAL CONTROL

Model 600

DIGITAL HUMIDIFIER CONTROL

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.

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.

ATTENTION INSTALLER:

MODEL 600 SERIES HUMIDIFIER

The Model 600 and 600M 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.

RESEARCH PRODUCTS CORPORATION • P.O. BOX 1467 • MADISON, WI 53701-1467 • CALL 800/334-6011 • FAX 608/257-4357

RETURN

SUPPLY

S

RETURN

R

SUPPLY

S

Horizontal

Upflow

90-1079

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.

SPECIFICATIONS

HUMIDIFIER DIMENSIONS

Width (including solenoid valve): 153⁄8”

Height (including drain spud): 15 3⁄4”

Depth:101⁄4”

BYPASS DUCT OPENING

6” diameter

PLENUM OPENING

10”W x 123⁄4”H

WATER FEED RATE

3 gph

ELECTRICAL DATA

24 VAC-60 Hz, 0.5 AMP

CAUTION

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.

5. Do not connect Model 600 or 600M 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.

RISK OF PROPERTY AND EQUIPMENT DAMAGE.

INSTALLATION

OPTIONS

RECOMMENDED WIRING DIAGRAMS

(SEE STEP 7 ON BACK AND “HUMIDIFIER CONTROL SAFETY AND INSTALLATION INSTRUCTIONS” FOR DETAILED WIRING INSTRUCTIONS)

NOTE

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.

READ COMPLETE SAFETY INSTRUCTIONS AND INSTALLATION TEMPLATE BEFORE STARTING INSTALLATION

TEMPLATE MUST BE LEVEL

– TOP –

READ REVERSE SIDE FIRST! READ REVERSE SIDE FIRST!

IMPORTANT! Be sure owner’s manual containing

instructions for operation and warranty information is given to

owner in order to avoid unnecessary calls. Warranty is void unless

humidifier is installed by qualified heating and air conditioning

contractor due to possible misapplication of product.

NOTE: BEFORE LEAVING THE

JOB SITE, MAKE SURE:

1. Saddle valve is fully open.

2. All plumbing connections are

watertight.

3. Humidifier functions properly.

4. Bypass damper is in proper

position.

Figure 1 Figure 2 Figure 3

10008975 B2205117A 4.10

90-1067 90-1068 90-1069

12

10

2

7

9

6

11

1

4

3

5

8

90-1250

FURNISHED ITEMS

ITEMS NOT FURNISHED

Built-in bypass damper

24 VAC Transformer

Digital Humidifier Control

(Model 600 only)

Manual Humidifier Control

(Model 600M only)

Humidifier Control Installation Instructions

Saddle valve

Humidifier Installation Template

Mounting screws (sheet metal screws)

Water supply line (1⁄4” copper)

Drain line (1⁄2” I.D. hose)

Low voltage wire

Bypass ductwork

Model 50 Current Sensing Relay (if required)

1. Front Cover

2. Base

3. Feed Tube

4. Water Distribution Tray

5. Water Panel Evaporator

6. Scale Control Insert

7. Integral Damper

8. Damper Handle

9. Drain Spud

10. Hole Plug

11. Nameplate

12. Solenoid Valve

PARTS LIST

1. Press top & bottom tabs

to remove cover (1).

Pull feed tube (3) out of

distribution tray (4). Remove

Water Panel®Evaporator

assembly. See Figure 1.

2. Humidifier is supplied

with bypass duct

connection on left. For right

side bypass, swap location

of drain spud (9) and cap

(10). Twist to remove spud

and cap.

3. Position template on

supply or return plenum.

Make sure template is level.

Allow clearance for drain

line and for servicing. Trace

template outline. Cut 10”

wide x 12-3/4” high opening.

Avoid injury from sharp

edges.

4. Place humidifier base (2) in

opening and secure with 6 screws

in openings provided.

5. Select location for 6” collar

on opposite plenum to minimize

length and number of elbows in

bypass duct. Install 6” bypass

duct components. Attach duct to

humidifier collar using 2 screws

in openings provided.

6. Insert Water Panel Evaporator

assembly into base. Make sure

bottom of scale control insert (6)

is in drain spud. Snap top of

evaporator assembly into base.

Insert feed tube into distribution

tray. See Figure 2. Rotate

nameplate (11) if necessary, so it

is right side up. Place point bypass

damper handle (8) to “WINTER”

(open) for heating season and

“SUMMER” for cooling season.

7. Control installation

and wiring. Disconnect

electrical power to furnace

before wiring control.

In order for humidifier to

operate, furnace must be

on and RH must be below

set-point of control.

Wiring diagrams illustrate

recommended method of

detecting furnace

operation.

MANUAL HUMIDIFIER

CONTROL, MODEL 600M:

Manual Control can be

mounted in return duct or

on wall in living space.

Knob and cover must be

removed to mount control.

See wiring diagram for 24V

control connections.

• For return duct mounting,

position template at least 6”

upstream of bypass duct

connection or humidifier.

Avoid injury from sharp

edges when cutting

opening. Make sure foam

gasket is in place and

secure control to duct using

2 screws in holes provided.

• For wall-mount, select

location that will not be

affected by drafts or heat

sources. Remove and

discard foam gasket and

secure control to wall over

wire access opening using

screws & anchors provided.

DIGITAL HUMIDIFIER

CONTROL, MODEL 600:

• Select location for control

on return duct at least 6”

upstream of bypass duct

connection or humidifier.

Drill 3/4” hole for sensor.

Knob and cover must be

removed to mount control.

Place control on duct with

RH sensor extending into

duct opening. Make sure

gasket is in place around

sensor cage. Secure control

to duct using 2 screws in

openings provided.

• See wiring diagrams on

template and control

instructions for 24 V control

connections.

8. Humidifier will function with

cold, hot, softened or unsoftened

water. Hot water (140°F max) is

strongly recommended to provide

maximum evaporative capacity.

Saddle valve provided may be

used to tap into water supply.

See installation instructions on

saddle valve package. Saddle

valve is designed to be fully

opened or closed. Do not use

to regulate flow.

9. Run 1/4” copper tubing from

saddle valve to solenoid valve.

DOUBLE-WRENCH TO PREVENT

LEAKING. See Figure 3.

10. INSTALL DRAIN IN

ACCORDANCE WITH LOCAL

CODES. Run 1/2” I.D. hose

from drain spud to floor drain.

Make sure drain has constant

downward slope and is not

kinked. Do not over-tighten

hose clamp onto drain spud.

Do not use solvent adhesive

on drain spud.

11. Check humidifier

operation. Open saddle valve

and turn control to highest

setting. Turn on furnace. Allow

humidifier to run until water

flows from drain. Make sure

all electrical connections are

secure and all plumbing

connections are water-tight.

Set control to proper setting.