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TrueSTEAM Humidification System
 3 69-2285EFS—03
CONTRACTORS: IMPORTANT INSTALLATION REQUIREMENTS
Failuretocomplywillresultinvoidedwarranty,improperinstallation,andservicecallbacks.
M28711
DUCT MOUNT INSTALLATION
Choose a location that has access to a:
• Drainwithahigh-temperaturewater
rating. Refer to local plumbing codes
to ensure proper draining.
• Coldwatersupplylinemustbeused.
• Electricalcircuitratedtoyour
humidifier.
• Verticalsurfacewithadequate
clearances.

Model
Required Minimum
Circuit Capacity
HM506 7 Amps
HM509 10 Amps
HM512 12 Amps
M24745
Install duct nozzle.

M24746A
Ensure o-ring gasket
is properly seated in
the groove.
Slide foam gasket
down over nozzle.
M24894
Insert nozzle and twist clock-
wise to ensure tight seal of
nozzle to TrueSTEAM.
11.5 in.
19 in.