507640-05
Page 1 of 25
Issue 2245
Save these instructions for future reference
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
INSTALLATION AND MAINTENANCE
INSTRUCTIONS
*RP16DF SERIES UNITS
RESIDENTIAL PACKAGED UNITS
Dual Fuel Units
507640-05
11/2022
Improper installation, adjustment, alteration, service, or
maintenance can cause injury or property damage. Refer
to this manual. For assistance or additional information,
consult a licensed professional (or equivalent), HVAC
installer, service agency, or the gas supplier.
WARNING
Do not store combustible materials, including gasoline
and other flammable vapors and liquids, near the unit,
vent pipe, or warm air ducts. Such actions could cause
property damage, personal injury, or death.
WARNING
The installation of the unit, wiring, warm air ducts, venting, etc. must conform to the requirements of the National Fire
Protection Association; the National Fuel Gas Code, ANSI Z223.1 (latest edition) and the National Electrical Code, ANSI/
NFPA No. 70 (latest edition) in the United States; the Canadian Installation Codes CAN/CGA-B149.1 & .2 (latest edition)
and the Canadian Electrical Code Part 1, CSA 22.1 (latest edition) in Canada; and any state or provincial laws, local
ordinances, or local gas utility requirements. Local authorities having jurisdiction should be consulted before installation
is made. Such applicable regulations or requirements take precedence over the general instructions in this manual.
CAUTION
See unit nameplate for Manufacturer
(P) 507640-05
*P507640-05*
If this unit is to be installed in a mobile or manufactured
home application, the duct system must be sized to
achieve static pressures within the manufacturer’s
guidelines. All other installation guidelines must also
be followed. Failure to do so may result in equipment
damage, personal injury, and improper performance of
the unit.
WARNING
Table of Contents
Unit Dimensions ..........................................................2
Roof Curb Dimensions ................................................4
Adjustable Roof Curb Dimensions...............................6
Installation ...................................................................9
Venting.......................................................................11
Duct System ..............................................................12
Filters .........................................................................12
Condensate Drain......................................................13
Gas Piping .................................................................13
Electrical Wiring ........................................................14
Gas Heating Start-Up ...............................................15
Sequence of Operation..............................................17
System Performance .................................................21
Control System Diagnostics ......................................22
Maintenance ..............................................................23
Wiring Diagrams ........................................................25
