Reznor LDAP Unit Installation Manual - Manual (Page 16)

Form I-LDAP, P/N 207733R6, Page 16
14-1/8”
(360mm)
16-1/2”
(419mm)
24-3/8”
(618mm)
Option CD57,
30° Nozzle
Option CD58,
60° Nozzle
Option CD59, 30° Nozzle
with 4-Way Louvers
FIGURE 9B -
Nozzle
Dimensions
6.2 Unit Discharge
(cont’d)
6.0 Mechanical
(cont’d)
6.2.3 Discharge Nozzle Options (cont’d)
Model LDAP heaters are certified as Category III heaters.
1) Type of Vent Pipe
The type of vent pipe is determined by whether the vent is horizontal or verti-
cal.
Horizontal • Vent pipe approved for a Category III appliance, OR
• Appropriately sealed 26-gauge or heavier galvanized
steel or equivalent single-wall pipe
Vertical • Vent pipe approved for a Category III appliance, OR
• Appropriately sealed 26-gauge or heavier galvanized
steel or equivalent single-wall pipe
OR, if at least 75% of the equivalent length of the vent run is vertical
• Double-wall (Type B) vent pipe
6.3 Venting
Venting Requirements
WARNING: Each heater requires its own individual vent
pipe run and vent cap. Manifolding of vent runs can cause
recirculation of combustion products into the building.
Failure to comply could result in severe personal injury or
death and/or property damage.
Venting must be in accordance with local codes and the National Fuel Gas
Code Z223.1 or CSA B149.1 and B149.2, Installation Code for Gas Burning
Appliances and Equipment. Local requirements supersede national require-
ments.
These power-vented heaters are designed to operate safely and efficiently with
either a horizontal or vertical vent. Comply with the specific requirements and
instructions.
If this heater is replacing an existing heater, be sure that the vent is sized prop-
erly for the heater being installed and that the existing vent is in good condition.
A properly sized vent system is required for safe operation of the heater. An
improperly sized vent system can cause unsafe conditions and/or create con-
densation. Do not vent into an existing gravity vent or chimney.
Installation should be done by a qualified agency in accordance with these
instructions. The qualified service agency installing this system is responsible
for the installation.