NOTE: Weights listed are net weights for base unit only, options can change unit weights significantly. For option weights, please consult the printed catalog or your Reznor Representative.
Reznor® RP series rooftop duct furnaces are designed to be used as the heating component in a heating, heating/cooling or makeup air system.
The RP series furnaces are certified for 80% thermal efficiency for use with either natural or propane gas, as specified, in sizes from 125,000 through 400,000 BTUH input. The furnace includes an integral power vent system which provides metered combustion air, dilutes flue products and eliminates the need for a vent cap. The weatherized, aluminized steel cabinet is designed for outdoor mounting. A separate blower system is required for air delivery. The furnace has a patented Reznor® Thermocore® aluminized steel heat exchanger with venturi-design tubes. The die-formed burners are of aluminized steel and include flared ports with a stainless steel insert. Standard features include a spark-ignited intermittent pilot and a single stage 24-volt gas valve. Each unit has all the required limit and safety controls including a venter pressure switch which verifies power vent flow prior to allowing operation of gas valve. For automatic operation, each unit is wired for field connection to a remote 24-volt thermostat.
Notes:
Burner and control access shown left hand side (standard). Specify right hand side for opposite access and connections.
Standard air flow as shown. Direction of air flow may be reversed by field relocation of air flow baffles in the heat exchanger.
To install units side-by-side, specify one unit with standard left-hand controls and one unit with optional right-hand controls. Ductwork must attach only to separate duct flanges, never attach duct to heater cabinet.
All casing parts are suitable for outdoor installation. Heater mounting rails are 12 Ga. zinc grip steel.
One inch thick fiberglass insulation full length and width of top
Approved for installation downstream of an air conditioning coil (optional drain flange, stainless steel heat exchanger and stainless steel burners are recommended).
Not approved for residential use.
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
120-volt supply voltage
24-volt control voltage transformer
Redundant, single-stage combination gas valve
Spark-ignited, intermittent safety pilot with electronic flame supervision
High limit safety cutout
Power venter
Differential air pressure switch to verify vent flow
Terminal block wiring
Left side access for burners and controls (slide out burner drawer)
Weatherized steel cabinet with interlocking joints (U.S. patent no.5,373,673) for outdoor mounting
Optional Features - Factory Installed
Orifices for propane gas
Elevations from 2,001 to 9,000 ft.
409 or 321 stainless steel heat exchanger
409 stainless steel burners
409 stainless steel bottom pan
Burner Controls for Recirculated Heating
Two-stage gas valve
Electronic modulation
Gas Controls for Make up Air
Two-stage gas valve with ductstat
Mechanical modulation (50°-100°F)
Mechanical modulation (50°-100°F) with bypass
Electronic modulation - 50%-100% firing rate with duct probe (55°-90°F)
Electronic modulation - 50%-100% firing rate with duct probe with remote adjustment
Electronic modulation - 20/28%-100% firing rate not available on size 350
Intermittent spark pilot with timed lockout
Voltage - 208/230/460
Fan control
Right side controls (facing airstream)
Manifold arrangement to comply with Illinois school code requirements
Instructions for Installing Replacement Gear Motor Kit
Applies to Modulating Gas Control Options AG39, AG40, AG41 and AG42 on Reznor® Model Series SC and Model Series RP
Reznor® RP series rooftop duct furnaces are designed to be used as the heating component in a heating, heating/cooling or makeup air system.
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