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explained in the previous note provides further protection against
overflow due to a clogged primary drain.
NOTE: In applications where return air humidity levels stay at
70% or above for a prolonged period of time, condensation can
form on the bottom of pan and drip.
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 (See Fig. 16 ).
Fig. 16 − Condensate Drain to Waste Line
!
EXPLOSION HAZARD
Failure to follow this warning could result in personal injury
or death.
Provide trap with air gap in drain line when connecting to
waste (sewer) line.
Procedure 7 — Humidifier Application
When installing a humidifier in a system which contains an N−coil,
consideration must be given to location of coil slabs. (See Fig. 17.)
1. Care must be taken to prevent damage of N−coil when at-
taching humidifier to coil casing or plenum.
2. These models are shipped with a Caution Label (see Fig.
14) to be applied to plenum to indicate slab location. When
these coils are removed from their casing and applied dir-
ectly into the plenum, affix this Caution Label to the right
side of the plenum enclosure. This is needed only in cases
where the humidifier is not installed with original equip-
ment. Label will alert future service and installation techni-
cians about coil slab location.
3. Ensure that humidifier has adequate airflow.
Copyright 2018 CAC / BDP D 7310 W. Morris St. D Indianapolis, IN 46231
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
WARNING
Supply
A10216
Fig. 17 − Installation of Humidifier in System with N−Coil
NOTE: The State of California requires Proposition 65 labels
(Prop 65) for products containing materials of concern. Taped to
the header plate door is the Proposition 65 Label for this product.
Apply this label on the outside front of the furnace coil casing.
Hazard Warning Label
Fig. 18 − Label Placement on Casing
NOTE:
Attached to the literature assembly is the Fire and
Explosion Hazard warning label for this product. Apply this label
on the outside front of the furnace coil casing if one does not exist
on the casing. (See Fig. 18)
Edition Date: 03/18
8
Evaporator
N*Coil
Upflow
Furnace
Catalog No: IM-CNPVU-09
A180085
A180077
Replaces: IM-CNPVU-08
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