The Reznor’s Reznor’s Model RPBL Extended Capacity, Power-Vented, Gas Fired, Outdoor, Packaged Duct Furnace(S) / Blower Combination for Commercial/Industrial Heating and Makeup Air
Reznor® Model Series RPBL is factory-designed assembly of one, two, or three duct furnace(s) and a large-capacity blower cabinet and a variety of control options for heating, makeup air or a combination of these functions. Pre-engineered design allows for single unit installation, provides unified appearance, and saves customer engineering time and assembly costs.
Models are available for outdoor use in heating capacities from 400,000 through 1,200,000 BTUH gas in-put. Model RPBL systems are available for use with either natural or propane gas, as specified. Each unit is equipped with all required limit safety controls.

Controls and wiring are accessible through lift-away side panels.
Model RPBL systems are completely weather sealed. No additional protective covering is required. Each packaged unit is designed for installation on a full roof curb or field supplied supports.

RPBL units feature an integral power vented system for use where environmental conditions pose a problem for gravity-vented units.

Standard Features:
● Orifices for natural gas
● Aluminized steel heat exchanger (When inlet air temperature is below 40°F or temperature rise is less than 40°F, optional stainless steel heat exchanger is recommended)
● Aluminized steel burners with stainless steel insert
● 208-volt power supply
● 24-volt control transformer
● Redundant single-stage combination gas valve on each furnace (see Note 1)
● Intermittent spark pilot
● Fan and limit safety controls
● Reverse air flow limit
● Twin centrifugal blowers with adjustable belt drive
● Pre-wired to terminal blocks
● Power venter
● Weatherized, galvalume steel cabinet with interlocking joint construction for outdoor mounting
● Horizontal discharge air opening with duct flanges
● Curb cap base
● Horizontal inlet air opening
● Insulated blower cabinet (less optional filter rack and filters)
● Left side access to burner(s) and controls (facing airstream)
● 1/2” O.D. BX cable (Chicago code)

NOTE 1: Regulated combination redundant gas valve consists of combination pilot solenoid valve, electric gas valve, pilot filter, pressure regulator, pilot shut-off, and manual shut-off, all in one body. Gas supply pressure must not exceed 0.5 PSI (8 oz. – 14” W.C.). Minimum inlet pressure for natural gas is 5” W.C. Minimum inlet pressure for propane gas is 11” W.C.
NOTE 2: Not certified for residential use.

FACTORY INSTALLED OPTIONS:
● Unit equipped for propane gas
● E-3 (409) stainless steel heat exchanger
● E-3 (409) stainless steel burners
● E-3 (409) stainless steel drip pan
● Intermittent spark pilot with flame supervision and timed lockout
● Individual single-stage gas control on each furnace section
● Two-stage gas control on each furnace section – effective 2 to 6 stage gas control (see Gas Control Option page for more detailed description)
● Electronic modulation (50-100% turndown) (20-100% turndown, size 400)
● Variable frequency drive with open dripproof or totally enclosed motor
● VFD control options
◊ Soft start
◊ Two speed control
◊ DDC signal from remote device
● Makeup air control/dampers
● 208/1, 230/1, 208/3, 230/3, 460/3, 575/3 alternate supply voltages
● 1 HP through 20 HP open drip-proof or totally enclosed motors available (motors meet EISA specifications for efficiency)
● Burner air shutters (required for units equipped for propane gas)
● Firestat(s)
● Freezestat
● Convenience outlet
● 1/2” O.D. BX cable (Chicago code)
● Motor starter (optional with motors having internal overload protection)
● Filter rack with filters (2” disposable, permanent or pleated)
● Downturn plenum cabinet (insulated)
● Discharge dampers, 2-position, with downturn plenum
● Double wall cabinet construction
● GAP, FM manifold arrangements
● High ambient burner cutoff
● Gas pressure safety switches
● Air flow proving switch
● Right side controls (facing airstream)
● Extended warranty on heat exchanger(s); five (5) or ten (10) years

FIELD INSTALLED OPTIONS:
● Full perimeter roof curb
● Cooling coil cabinet with DX or chilled water coil with or without downturn plenum
● Remote control console
● Disconnect switch
● Single-stage thermostat
● Two-stage thermostat
● Electronic 7-day programmable thermostat
● Thermostat guard with locking cover
● 100% outside air hood (requires assembly)
● Evaporative cooling module