Installation Instructions

EXHAUSTING THE DRYER (cont.)

WARNING – USE ONLY METAL 4DUCT. DO NOT USE DUCT LONGER THAN

SPECIFIED IN THE EXHAUST LENGTH TABLE.

Using exhaust longer than specified length will:

Increase the drying times and the energy cost.

Reduce the dryer life.

Accumulate lint, creating a potential fire hazard.

The correct exhaust installation is YOUR

RESPONSIBILITY.

Problems due to incorrect installation are not covered by the warranty.

The MAXIMUM ALLOWABLE length of

the exhaust system depends upon the type of duct, number of turns, the type of exhaust hood (wall cap) and all conditions noted below. Both rigid and flexible metal duct are shown in the table below.

EXHAUST LENGTH

RECOMMENDED MAXIMUM LENGTH

Exhaust Hood Types

Recommended

Use only for short-

 

run installations

 

 

4DIA

 

4DIA

 

 

 

 

 

 

4DIA

 

 

 

 

4

 

212

 

 

 

 

No. of 90º

Rigid

Flexible

Rigid

Flexible

Elbows

Metal

Metal

Metal

Metal

0

150 Feet

55 Feet

125 Feet

45 Feet

1

135 Feet

52 Feet

115 Feet

42 Feet

2

125 Feet

49 Feet

105 Feet

39 Feet

3

115 Feet

46 Feet

95 Feet

36 Feet

4

105 Feet

43 Feet

85 Feet

33 Feet

5

95 Feet

40 Feet

75 Feet

30 Feet

If using flexible metal duct, please refer to page 25.

EXHAUST SYSTEM CHECKLIST

HOOD OR WALL CAP

Terminate in a manner to prevent back drafts or entry of birds or other wildlife.

Termination should present minimal resistance to the exhaust airflow and should require little or no maintenance to prevent clogging.

Never install a screen in or over the exhaust duct. This could cause lint buildup.

Wall caps must be installed at least 12above ground level or any other obstruction with the opening pointed down.

If roof vents or louvered plenums are used, they must be equivalent to a 4dampened wall cap in regard to resistance to airflow, prevention

of back drafts and maintenance required to prevent clogging.

SEPARATION OF TURNS

For best performance, separate all turns by at least 4 ft. of straight duct, including the distance between the last turn and the exhaust hood.

TURNS OTHER THAN 90º

One turn of 45º or less may be ignored.

Two 45º turns should be treated as one 90º turn.

Each turn over 45º should be treated as one 90º turn.

SEALING OF JOINTS

All joints should be tight to avoid leaks. The male end of each section of duct must point away from the dryer.

Do not assemble the ductwork with fasteners that extend into the duct. They will serve as a collection point for lint.

Duct joints can be made air- and moisture-tight by wrapping the overlapped joints with duct tape.

Horizontal runs should slope down toward the outdoors 1/2per foot .

INSULATION

Ductwork that runs through an unheated area or is near air conditioning should be insulated to reduce condensation and lint buildup.

26

Page 26
Image 26
GE UPVH890 installation instructions Specified in the Exhaust Length Table, Responsibility, Recommended Maximum Length

UPVH890 specifications

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