DriSteem Vapor-Logic Instalační příručka stáhnout pdf (Strana 36)

Page 34 • DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual

Special horizontal venting requirements

• Ensure that distances from the vent terminal to adjacent public

walkways, buildings, and openable windows and building

openings are consistent with the National Fuel Gas Code, ANSI

Z223.1, CAN/CGA B149 Installation Codes, National Gas

Safety Code (Installation & Use) Regulations (latest revision), or

governing codes.

• In areas accessible to the public, the vent terminal must be at

least 7' (2.1 m) above ground level to prevent burns from the hot

terminal surface.

• The vent terminal and air intake locations must be at sufficient

height above ground level to prevent blocking by expected

snowfall.

• Building materials must be protected from degradation by flue

gases.

• A minimum horizontal clearance of 4' (1.22 m) from electric

meters, gas meters, regulators, and relief equipment must be

maintained.

• Maximum equivalent length of vent pipe is 100' (30 m).

Minimum equivalent length of vent pipe is 10' (3 m). See power

venter installation manual for equivalent lengths of fittings.

• Vent box pressure must be –0.01" wc (–2.5 Pa). Set by adjusting

power venter and barometric damper, with all burners running

(see manufacturer's instructions included with power venter and

damper).

Ve r t i c a l a n d h o r i z o n t a l v e n t i n g

( c o n t i n u e d )

Table 34-2:

Recommended minimum vent sizes

Model

Minimum vent size

Vertical vent Horizontal vent

inches mm inches mm

GTS-100 5 130 5 130

GTS-200 5 130 5 130

GTS-300 7 180 5* 130

GTS-400 7 180 5* 130

GTS-500 8 205 8 205

GTS-600 8 205 8 205

GTS-700 10 255 8* 205

GTS-800 10 255 8* 205

Note:

* For best results, make transition to smaller vent

diameter as close to the power venter as possible.

Table 34-1:

Equipment required for horizontal

venting

Item

Field controls

model number

for GTS or

GTS-DI models

100, 200,

300, 400

Field controls

model number

for GTS or

GTS-DI models

500, 600, 700,

and 800

Power venter PVO-600 (5") PVE-1200 (8")

Barometric

damper

MG-1 (5") MG-1 (8")

Vent hood SWH-1-5 (5") SWH-8

Electrical

ratings

120 VAC

60 Hz

2.1 A

120 VAC

60 Hz

2.5 A

Note:

For European models, contact your distributor for

horizontal venting parts.

Figure 34-1:

GTS venting

Notes:

* Install a tee after the ﬁrst elbow from the humidiﬁer as shown. Use the open end of

this tee for the location of the barometric damper.

** Required distance between air intake and vent hood is deﬁned by governing codes.

Refer to power venter manual for clearance requirements relative to combustion air

openings.

Power venter

Barometric draft control

installed in tee*

“x”

Air

intake

3½' (1.07 m)

min.

Vent hood

Recommended value

for “x” approximately

12" (305 mm)

OM-1209

Distance**

I m p o r t a n t : Seal the connection and all other vent

piping joints on the pressure side of the power venter.

Air intake

Installation

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