Reznor RPB - Mounting Support Structure; Bottom Duct Connections

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RPB-IOM (06-22) 131782-B
INSTALLATION—CONTINUED
Shipped-Separate Parts—Continued
Table 5. Shipped-Separate Parts for Gas Control Options
Application Option Part(s)
Heating AG7 Thermostat (PN 48033)
Makeup air
AG3 Control switch (PN 29054)
AG8 Control switch (PN 29054); sensor and mixing tube (PN 48041)
AG9 Control switch (PN 29054); remote temperature selector (PN 48042); sensor and mixing tube (PN 48041)
AG15
Control switch (PN 29054); remote temperature selector (PN 115848); stage adder module (PN 115849); discharge
air sensor holder (PN 115850); discharge air sensor holder bracket (PN 213612)
AG39 Remote temperature selector (PN 174849); temperature sensor (PN 133228); mixing tube (PN 90323)
NOTE: If an optional remote console is ordered, the control switch and temperature selector may be mounted on the console.
Mounting Support Structure
⚠ CAUTION ⚠
• Before installing the curb, verify that the size is correct for the system being installed.
• Whether using an optional roof curb available with the system or a field-supplied curb, the curb
must be secure, square and level.
• IMPORTANT: The area enclosed by the roof curb must comply with Table 4. If the roof is constructed
of combustible materials, the area within curb must be either ventilated, left open, or covered
with non-combustible material that has an R-value of at least 5.0.
NOTES:
• Prior to installation, ensure that the method of support is in agreement with all local building
codes and is suited to the climate.
• If the area within the curb is left open, higher radiated sound levels may result.
• The system can have a variety of configurations that affect installation. If the system does not
have a downturn plenum, the discharge is horizontal.
Bottom Duct Connections
The blower section and optional downturn plenum have duct flanges for connection to return air and supply air ducts.
Duct opening sizes and curb spacing shown in Figure 2.
NOTE: Figure 2 shows dimensions for currently-manufactured curbs that are available from the
system manufacturer. The measurement from the duct openings to inside edge of roof curb is 1-5/8
inches (41 mm). Duct openings should be 1 inch larger than the duct size for installation clearance.