EasyManuals Logo

Aprilaire 500 SERIES Installation Instructions

Aprilaire 500 SERIES
2 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
ATTENTION INSTALLER
Read this installation template before installing humidifier. Warranty
is void unless humidifier is installed by qualified heating and air
conditioning contractor due to possible misapplication of product.
This product must be installed in compliance with all local, state, and
federal codes. Proper humidification and humidity control require that
the home be constructed with local codes and good building practices.
WARNING
ELECTRICAL SHOCK HAZARD. Disconnect power to the
furnace before installing humidifier.
CAUTION
SHARP EDGES. Use care when cutting and handling ductwork.
HOT WATER CAN SCALD. Shut o hot water supply before
tapping into hot water supply.
NOTICE
FREEZING TEMPERATURES CAN BURST WATER PIPES.
Do not install humidifier where freezing may occur.
CONDENSATION DAMAGE OR MOLD CAN OCCUR.
Locate return duct mounted humidifier control at least 6"
upstream of humidifier, bypass duct connection, or fresh air
intake for accurate humidity sensing.
Locate wall mount humidifier control in areas unaffected by
drafts or heat sources for accurate humidity sensing.
Reduce the setting on the humidifier control if condensation
forms on windows or in unheated spaces.
EQUIPMENT DAMAGE MAY OCCUR.
Do not install humidifier or bypass connection on the
furnace jacket.
Do not connect the transformer to the blower motor wiring.
Do not install the humidifier or bypass connection on a
plenum face at the blanked end of the cooling coil.
If water pressure exceeds 125 psi, reduce water pressure
with devices allowed by local codes.
Do not use water with temperature greater than 140°F.
Do not install humidifier on systems with differential
pressure greater than 0.4 w.g. between the supply and
return plenums.
When installing the humidifier control on the return duct
of a downflow furnace, ensure the blower continues to run
after a heat call is satisfied.
SPECIFICATIONS
Humidifier Dimensions:
Width (including solenoid valve): 15-5/8"
Height (including drain spud): 13"
Depth: 10-1/4"
Bypass Duct Opening: 6" diameter
Plenum Opening: 9-1/2"W x 9-1/2"H
Water Feed Rate: 3 gph
Electrical Data: 24 VAC, 60 Hz, 0.5 Amp
Water Panel®: Model 10
INSTALLATION OPTIONS (LEFT HAND DISCHARGE SHOWN)
Aprilaire® Model 500 and 500M can be installed
on either the supply plenum or cold air return of
a forced air handling system 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.
Hot water is recommended (140°F max) to
provide maximum evaporative capacity. It is also
recommended when the Blower Activation Feature
is used with an Automatic Digital Humidifier Control,
or on a heat pump system. The humidifier functions
with cold, hot, softened, or unsoftened water.
FURNISHED ITEMS
Humidifier with built-in bypass damper
24 VAC transformer
Automatic Digital Humidifier Control and
Outdoor Temperature Sensor (Model 500 only)
Manual Humidifier Control (Model 500M only)
Humidifier Control Installation Instructions
Saddle valve
Humidifier Installation Template
ITEMS NOT FURNISHED
Mounting screws (sheet metal screws)
Water supply line (1/4" O.D. copper)
Drain line (1/2" I.D. hose)
Low voltage wire
Bypass ductwork
Model 50 current sensing relay
(if required)
PARTS LIST
8
7
2
10
12
4
5
3
1
11
6
9
1. Front Cover
2. Base
3. Feed Tube
4. Water Distribution Tray
5. Water Panel®
6. Scale Control Insert
7. Integral Damper
8. Damper Handle
9. Drain Spud
10. Hole Plug
11. Nameplate
12. Solenoid Valve
90-1250
Return
Return
Supply
Return
Supply
Supply
Floor Drain or
Condensate
Pump
Drain Line
Drain Line
Floor Drain or
Condensate
Pump
Return
Return
Supply
Return
Supply
Supply
Floor Drain or
Condensate
Pump
Drain Line
Drain Line
Floor Drain or
Condensate
Pump
HORIZONTALUPFLOW
90-1079
TEMPLATE MUST BE LEVEL
Model 500 Series Humidifier Template

Other manuals for Aprilaire 500 SERIES

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Aprilaire 500 SERIES and is the answer not in the manual?

Aprilaire 500 SERIES Specifications

General IconGeneral
Capacity12 gallons per day
Coverage AreaUp to 3, 000 square feet
Voltage24 V
InstallationProfessional installation recommended
ControlAutomatic or Manual
Warranty5-year limited warranty
Mounting LocationDuct-mount

Related product manuals