nVent H2OMIT Vent Drains H2OMIT Thermoelectric Dehumidifier Instruction Manual

: June 12, 2024
: nVent

Table of Contents

INDUSTRY STANDARDS
APPlICATION
FEATURES
SPECIFICATIONS
Performance Data H2OMIT Vent Drains
H2OMIT THERMOELECTRIC DEHUMIDIFIER

nVent H2OMIT Vent Drains H2OMIT Thermoelectric Dehumidifier

INDUSTRY STANDARDS

Maintains UL/cUL Type 4, 4X rating when properly installed on a UL/ cUL Type 4 or 4X enclosure.

UL 508A Listed; Type 4, 4X; File No. E61997
cUL Listed per CSA C22.2 No 94; Type 4, 4X; File No. E61997

NEMA/EEMAC Type 4, 4X
IEC 60529, IPx6

APPlICATION

H2OMIT Vent Drains allow accumulated water to drain out the bottom of an enclosure. The UL-approved vent drains also function as an air pressure equalizer, reducing the harmful effects of temperature-induced vacuums that could pull water and moisture into the enclosure

FEATURES

Uses gravity to remove collected liquids
One-way mechanical shut-off when pressure is equalized prevents water and contaminants from entering the enclosure
Helps reduce corrosion that can limit the life of internal electrical and electronic components
Installs in a 7/8-in. hole in the bottom of enclosure with provided nut or in a 1/2-in. NPT/NPS threaded conduit hub
Installs in the bottom of mild steel, aluminum, stainless steel or non-metallic enclosures
Maintains enclosure’s UL Type rating when properly installed

SPECIFICATIONS

stainless steel Vent Drain

Corrosion-resistant polyester material with a Type 304 stainless steel sleeve
2.00-in. long x 1.38-in outside diameter

non-metallic Drain Vent

Corrosion-resistant polyester material
2.00-in. long x 1.25-in. outside diameter

Performance Data H2OMIT Vent Drains

CATALOG NUMBERS| |
---|---|---
CATALOG NUMBERS Description| AVDR4NM Non-metallic Vent Drain| AVDR4SS4 Stainless Steel Vent Drain
D (in./mm)| 1.25/32| 1.38/35
Quantity| 1| 1

H2OMIT THERMOELECTRIC DEHUMIDIFIER

INDUSTRY STANDARDS

UL 508A Listed; File No. E61997
cUL Listed per C22.2 No. 14; File No. E61997

CE

APPLICATION

The H2OMIT Thermoelectric Dehumidifier removes moisture from the air within an enclosure, providing an inexpensive yet highly effective way to protect electronic and electrical components from condensation.

FEATURES

Reduces corrosion that can limit the life of internal electrical and electronic components
Condenses moisture from internal enclosure air and standing liquids
Built-in drain provision with plastic hose directs collected moisture to the Vent Drain (sold separately)
Rotating side air vents direct recirculating air away from critical controls
Mounts via DIN rail on internal panel or mounts directly onto the inside bottom of enclosure above the Vent Drain (sold separately)
Can be used in mild steel, aluminum, stainless steel and nonmetallic enclosures

SPECIFICATIONS

High-impact ABS shell
Operates on 24-Volt DC power
4.5 A max. (84 W)
Runs continuously above 32 Fa (power supply not included)
Removes 8 oz. of moisture in 24 hours
Compact 6.00-in. x 5.50-in. x 5.75-in. design
One Thermoelectric Dehumidifier includes:
- Four feet of plastic hose
- Two hose retainers
- One double-ended hose retainer
- Six inches of Velcro®
- Seven-inch strip of DIN rail
- Two mounting screws

Must be used with UL-certified drain to remove pooled liquid from enclosure.
If continual operation is not desired, a Mechanical Hygrostat (AMHUM) can be wired to the thermoelectric dehumidifier and then set to turn the dehumidifier on at the desired relative humidity. VELCRO is a trademark of Velcro Industries B.V.

Performance Data H2OMIT Thermoelectric Dehumidifier

CATALOG NUMBERS

H2OMITTER
Dew Point Temperature : Percent Relative Humidity
Temp. (° F)| 100%| 95%| 90%| 85%| 80%| 75%| 70%| 65%| 60%| 55%| 50%| 45%| 40%| 35%| 30%| 25%| 20%| 15%| 10%
110| 110| 108| 106| 104| 102| 100| 98| 95| 93| 90| 87| 84| 80| 76| 72| 65| 60| 51| 41
105| 105| 103| 101| 99| 97| 95| 93| 91| 88| 85| 83| 80| 76| 72| 67| 62| 55| 47| 37
100| 100| 99| 97| 95| 93| 91| 89| 86| 84| 81| 78| 75| 71| 67| 63| 58| 52| 44| 32
95| 95| 96| 92| 90| 88| 86| 87| 81| 79| 76| 73| 70| 67| 63| 59| 54| 48| 40| 32
90| 90| 88| 87| 85| 83| 81| 79| 79| 74| 71| 68| 65| 62| 59| 54| 49| 43| 36| 32
85| 85| 83| 81| 80| 78| 76| 74| 71| 69| 67| 64| 61| 58| 54| 50| 45| 38| 32| —
80| 80| 78| 77| 75| 73| 71| 69| 67| 65| 62| 59| 56| 53| 50| 45| 40| 35| 32| —
75| 75| 73| 72| 70| 68| 66| 64| 62| 60| 58| 55| 52| 49| 45| 41| 36| 32| —| —
70| 70| 68| 67| 65| 63| 61| 59| 58| 55| 53| 50| 47| 44| 40| 37| 32| —| —|
65| 65| 63| 62| 60| 59| 57| 55| 53| 50| 48| 45| 42| 40| 36| 62| —| —| —| —
60| 60| 58| 57| 55| 53| 52| 50| 48| 45| 43| 41| 38| 35| 32| —| —| —| —| —
55| 55| 53| 52| 50| 49| 47| 45| 43| 40| 38| 36| 33| 32| —| —| —| —| —| —
50| 50| 48| 46| 45| 44| 42| 40| 38| 36| 34| 32| —| —| —| —| —| —| —| —
45| 45| 43| 42| 40| 39| 37| 35| 34| 32| —| —| —| —| —| —| —| —| —| —
40| 40| 39| 37| 35| 34| 32| —| —| —| —| —| —| —| —| —| —| —| —| —
35| 35| 34| 32| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —
32| 32| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —| —

Definition: Dew Point is the temperature at which condensation forms. If the temperature of the enclosure is 85 F and the relative humidity is 80 percent, Dew Point is reached at a temperature of 78 F or below.
This means that moisture vapor will condense on any surface that is below the Dew Point temperature of 78 F.