Install Instructions

4
Residential Whole House Indoor Air Quality
FORM NO. 300-8105 REV_A DH75 DH100 INSTALLATION OWNERS MANUAL
JPF REV 5-24-2018
Electrical Requirements
• WARNING: Disconnect power before installation and / or servicing, as electric shock may occur and cause
serious injury or death.
• WARNING: The DH75 / DH100 is equipped with an AFCI power cord with ground prong and may be plugged
directly into a grounded 3 prong, 120 volt, 15 amp household type convenience outlet. If used in a wet area
such as an area prone to ooding (basement or crawl space), a ground fault interrupter protected circuit is
required. In all cases local codes precede over all installation and wiring recommendations.
• Do not remove ground prong. Do not use an adaptor. Do not use an extension cord.
• If a remote wall mounted dehumidistat is used, install the dehumidistat control in a central area of the structure
where it will sense the relative humidity of the structure accurately. Do not install the control where it may not
accurately sense the relative humidity: near HVAC supply registers, or near exterior doors. Do not install the
control in an area not served by the DH75 / DH100. The installer must supply the wiring between the DH75
/ DH100 and the dehumidistat control. Be sure to safely route the control wiring to prevent damage during
installation. Be careful not to cross the wires when connecting the DH75 / DH100 and the control or damage
to the transformer may result.
• If you have installed a remote control (dehumidistat) for the unit, you will need to select "Yes" on the unit's
touch-screen control under "Settings, Remote Dehumidistat Installed".
• Consult the electrical schematic (Page 6 in this manual).
Condensate Removal
• Condensate drains by gravity via the ¾” PVC drain outlet located on the side of the unit. The unit must be
installed level, or slightly tilted toward the drain outlet side.
• Use included hard drain trap when possible. Proper sloping of drain line is required - 1/4" per 12").
• CAUTION: All PVC connections are press t only. In some situations sealer can be used, but do NOT
use glue.
• Do not use drain tubes to lift or move unit.
• CAUTION: Avoid double trapping. Where exible tubing is used, possibilities of sags occurring in
the drain line exist, or the drain terminates in a sump below the waterline, the drain must be vented to
allow proper draining. A condensate drain vent must be installed at the outlet side of the drain trap,
between the trap and the balance of drain line.
• An optional condensate pump kit may be installed if a lift is required to dispose of the condensate.
• If an optional pump is used, the condensate trap is still necessary and must be installed between the unit
and pump.
• When the condensate drain is located in, or passes through, a non-conditioned space, the condensate piping
should be insulated to prevent the drain line from sweating.
Ducting (See Duct Connection Diagram, Page 7)
A. Installing Duct
The DH75 / DH100 is equipped with an 8” (DH75) or 10" (DH100) round duct collar inlet, and an 8” (DH75) or
10" (DH100) round exhaust/supply collar that provides for connecting to the supply distribution system. In all
cases, sound duct design practices must be followed such as those provided in ACCA manual “D”, or ASHRAE’s
“Fundamentals of Air System Design”.
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GENERAL FILTERS
INCORPORATED