©2022 Carrier. All rights reserved.
Edition Date: 9/22
Catalog No: IM-EVD-ESD4X-03
Replaces: IM-EVD-ESD4X-02
EVD4X, ESD4X, WMVC, WMSC: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
7
condensate line (with appropriate trap) should be run from the unit into
the pan. Any condensate in this external condensate pan should be
drained to a noticeable place. As an alternative to using an external
condensate pan, some localities may allow the running of a separate
¾-inch (19 mm) condensate line (with appropriate trap) per local code to
a place where the condensate will be noticeable. The owner of the
structure must be informed that when condensate flows from secondary
drain or external condensate pan, the unit requires servicing or water
damage will occur. To further protect against water damage, install a
float switch to shut the unit off if the water in the secondary pan gets too
high.
A10216
Fig. 9 – Condensate Drain to Waste Line
Waste Line Connection
If the condensate line is to be connected to a waste (sewer) line, an open
trap must be installed ahead of the waste line to prevent escape of sewer
gases (
).
Humidifier Application
When installing a humidifier in a system which contains a V-coil,
consideration must be given to location of coil slabs (
).
1. The humidifier should be mounted to the supply plenum or return
duct whenever possible.
2. Ensure that humidifier has adequate airflow.
A200229B
Fig. 10 – Humidifier Application
Care and Maintenance
To continue high performance and minimize possible equipment failure,
it is essential that periodic maintenance be performed on this equipment.
Consult your local dealer as to the proper frequency of maintenance, but
it should be done at least annually.
The ability to properly perform maintenance on this equipment requires
certain mechanical skills and tools. If you do not possess these, contact
your dealer for maintenance. The only consumer service recommended
or required is filter replacement or cleaning on a monthly basis.
Condensate
Line
Trap
Sewer Line
Air Gap Above
Liquid Level
CAUTION
!
ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental damage.
Remove and recycle all components or materials (i.e., oil, refrigerant,
etc.) before unit final disposal.