Reznor UDAP-CV with option AV6 Option - Installation - Co Instrukcja Użytkownika Pobierz pdf (Strona 6)

Form I-UD-V-CV, P/N195677R5, Page 6

These instructions apply to the proper installation of a Model UDAP-CV in a

common vent application. The information provided is based on material pub-

lished in the National Fuel Gas Code and engineering calculations. The Model

UDAP-CV is a fan assisted (FAN) Category I heater. Instructions for the proper

installation of other appliances connected in common with the Model UDAP-

CV unit heater should be obtained from the manufacturer’s instructions or the

National Fuel Gas Code. In the case of conicting instructions the most con-

servative instruction must be applied.

The vertical portion of the common vent must be Type B double-wall or a

masonry chimney lined with Type B double-wall pipe. Refer to TABLE 4A to

determine the vent diameter required for the combined BTU/H input capacities

of all appliances to be connected and the height of the common vent portion of

the venting system. In TABLE 4A, “FAN” refers to fan assisted appliances and

“NAT” refers to appliances that rely solely on the natural buoyancy of the vent

gases for venting.

3.1 SECTION 2 - Model UDAP-CV Category I Common

Venting Instructions

If single-wall pipe is used in the

horizontal vent connector, refer to

TABLE 4B to determine the maximum

horizontal vent connector length

permitted.

If double-wall pipe is used in the

horizontal vent connector, refer to

TABLE 4C to determine the maximum

horizontal vent connector length

permitted. Two elbows may be used

in the horizontal vent connection with

a maximum rise of three feet (.9M).

NOTE: When two or more vent

connectors enter a common vent,

the smaller connector shall enter

at the highest level consistent with

available headroom or clearances to

combustible material.

3.0 SECTION 2 -

Requirements

and

Instructions

for Category

I Common

Venting of a

Model UDAP-

CV (cont’d)

TABLE 4A - Common Vent Capacity when a Category I Model UDAP-CV is Installed

with other Category I Appliance(s)*

Vertical Height

of Vent

Type B Double-Wall Common Vertical Vent

Diameter

5 inches 6 inches 7 inches

Maximum Combined Input Rating of the Appliances (mbh)

ft M FAN + FAN FAN + NAT FAN + FAN FAN + NAT FAN + FAN FAN + NAT

6 1.8 NA 102 180 142 274 220

7 2.1 NA 108 188 149 286 231

8 2.4 147 113 196 156 298 242

10 3.0 170 123 213 170 321 263

15 4.6 187 143 248 199 374 309

20 6.1 212 159 275 222 417 345

30 9.1 241 182 315 257 480 401

* If a conict in capacity occurs with other instructions, the more conservative capacity must be chosen.

This table may also be used for Type B double-wall lined masonry chimneys.

TABLE 4B - Maximum Horizontal Length of

Single-Wall Connector Pipe for

Model UDAP-CV* (Category I Common Vent)

Vertical

Height of

Vent

UDAP-CV Model Size

30 45 60 75 100

Diameter of Vent Connector (inches)

ft M 4 4 4 4 5

6 1.8 0 0 2 3 3

7 2.1 2 2 2 3 3

8 2.4 3 3 3 3 3

10 3.0 3 4 4 4 4

15 4.6 3 4 5 5 6

20 6.1 3 4 5 5 6

30 9.1 3 4 5 5 6

* For the proper vent connector length and diameter of other appliances

connected in common with the Model UDAP-CV unit heater, refer to the

appliance manufacturer’s instructions or the National Fuel Gas Code.

1 2 3 4 5 6 7 8

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