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TrueSTEAM™ Humidification Systems
Module 3: Basic Installation
Module 3 – Basic Installation
• Definition of a basic Installation
• What’s included in the TrueSTEAM™ box
• Step by step Installation Instructions
• Cautionary measures for avoiding
common installation mistakes
• What homeowners can expect
after a TrueSTEAM™ installation
What’s Included in the TrueSTEAM Box?
Tools and Parts Needed
• Tools needed to install TrueSTEAM™
- Wire cutter/stripper
- Torx driver T-20 and T-30
- Standard screwdriver
- 1-3/4-in. diameter hole saw
- 1/8-in. drill bit
- 18-gauge wire (up to 5 conductor)
• Other Optional Parts:
- Condensate pump rating of 212°F (100°C) if used.
- Drip pan with water sensor shut-off required underneath TrueSTEAM if
installed in or above finished space.
Tips and Precautions
• Be sure to read and understand the Installation Guide
and complete list of precautions before starting work!
- Adhere to voltage, heavy equipment and hot water warnings in
the manual
- Comply to all install, plumbing, wiring guidelines in the manual,
as well as those listed in your local guidelines
- Wear safety glasses
• Do not install in locations which are:
- Outside operating temperature range: 34°F to 104°F
- In confined space (less than 1 foot of clearance)
- Exposed to outside weather
DEDICATED TRUESTEAM HOTLINE
800-814-9452
Step 1: Choosing a Location
Choose a location that has access to a:
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Vertical surface with adequate clearances.
Cold water supply line must be used.
Drain with a high-temperature water rating.
Electrical circuit rated to your humidifier.
Model
HM506
HM509
HM512
Required Minimum
Circuit Capacity
7 Amps
10 Amps
12 Amps
Step 2: Mounting on the Supply Duct
• Position template on supply duct, and ensure proper
clearances from A-coil.
Step 3: Mount Bracket
• Secure bracket to duct using provided self-drilling sheet
metal screws.
Step 4: Insert Duct Nozzle
• Install duct nozzle by ensuring o-ring gasket is properly
seated in the groove, and slide foam gasket down over
nozzle.
• Insert nozzle and twist clockwise to ensure tight seal of
nozzle to TrueSTEAM.
Step 5: Mounting TrueSTEAM
• Push down to secure humidifier to bracket arms.
• Ensure gasket forms tight seal in duct hole.
• Allow 4 inches clearance from
nozzle outlet to any duct wall
and allow 24 inches of
downstream open duct
air space to prevent duct
condensation.
Step 6: Plumbing
Use only cold water. Do not use hot water supply.
a. Water Filter. Insert 1/4-inch copper or plastic water line. Apply modest pull to
ensure a tight fit.
b. Back-flow preventer valve. Insert 1/4-in. copper or plastic water line. Apply
modest pull to ensure a tight fit.
c. Connect 1/2-in. drain tube. Secure drain tube to barbed fitting with hose clamp.
d. Shut off the water supply. Secure 1/4-in. copper or plastic water feed tube.
Step 6: Plumbing
After Installation
• Educate the homeowner on what to expect next.
• It may take up to a week of continuous operation to achieve
the humidity control set point.
• A slight plastic smell may be detectable the first week of
operation. This is normal and will dissipate after running a
short time.
• There may be a slight increase in the homeowner’s energy bill
even when TrueSTEAM™ is sized and operating correctly. Set
the expectation that comfort costs money to avoid callbacks.
Support Materials
• Additional Materials on TrueSTEAM Installation are
available.
• Visit www.forwardthinking.honeywell.com
- Click on Humidification
• Enter literature form:
#69-2285: TrueSTEAM Installation Manual
Module 3 – Basic Installation
• Definition of a basic Installation
• What’s included in the TrueSTEAM box
• Step by step Installation Instructions
• Cautionary measures for avoiding
common installation mistakes
• What homeowners can expect
after a TrueSTEAM™ installation.