Delta PG PLUS-25 Operations Instructions download pdf (Page 38)

32

Venting and Combustion Air Installation

Excessive Horizontal Vent Runs

If maintaining the 1/4 inch per foot pitch

requirement creates clearance problems with

structural obstacles, i.e. low ceilings, the

installer may opt to installing the vent in a

manner that pitches up to a high point from the

unit and then pitches away from the high point

to the vent termination.

A condensate tee should be installed as close as

possible to the unit when venting in this manner.

The vent run from the high point to the vent

termination should be as minimal in length as

possible to reduce the amount of potential con-

densate that may form in the vent system.

The vent system must maintain the 1/4 inch per

foot pitch to the high point and from the high

point to the vent termination.

Vent Appliance Adapters

- The PERFORMANCE requires the use of

an appliance adapter as approved by the one

of vent manufacturers listed on page 27.

Failure to use an approved vent appli-

ance adapter may create improper vent

connection and potential flue gas leak-

age. Do not mix the manufacturer appli-

ance adapter with other manufacturers’

vent components, the vent system could

fail or improperly seal, causing leakage

of flue products into the building.

Vent Condensate Tee

A vent condensate tee and drain tube should be

installed on a horizontal run of vent near the

appliance to prevent any potential condensate

from entering the flue ways on the unit. See

Figs. 19 through 22B pages 33 and 34.

Failure to provide a vent condensate tee

close to the appliance could allow acidic

flue gas condensate to enter into the

appliance flue ways causing premature

failure of the appliance.

Condensate Drain Tube

To prevent flue gases from entering into the

building it is important the drain tube is fash-

ioned into a “pigtail” trap as shown in Figs. 19

through 22B pages 33 and 34.

The drain tube must be filled with water to pre-

vent flue gases from emitting into the building

prior to operating the appliance.

Periodically inspect the water level in the

condensate drain tube. If low, add water

as needed to maintain trap level.

If water in drain tube evaporates rapidly due to

ambient conditions, propylene glycol may be

added or substituted to reduce evaporation.

Pipe the condensate drain tube to a suitable

place of drainage or to a condensate pump or

sump. Consult local authorities regarding dis-

posal of flue gas condensate into public waste

water system.

Determining Piping Lengths

Once the venting method and location for the

vent termination has been determined the

installer must select the vent components

required for the system.

The maximum combined equivalent lengths for

venting and combustion air inlet are as follows:

- Delta PERFORMANCE PLUS - 200

feet (100 feet each)

NOTICE

WARNING

WARNING

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 75 76

Comments to this Manuals

No comments