Specification Sheet

2
22-1921-1C-EN
General Features
NNAATTUURRAALL GGAASS MMOODDEELLSS
Central Heating furnace designs are certified by the American Gas Association for both natural
and L.P. gas. Limit setting and rating data were established and approved under standard rating
conditions using American National Standards Institute standards.
SSAAFFEE OOPPEERRAATTIIOONN
The Integrated System Control is a solid state device which continuously monitors for presence
of flame when the system is in the heating mode of operation. Dual solenoid combination gas
valve and regulator provide additional safety.
QQUUIICCKK HHEEAATTIINNGG
Durable, cycle tested, heavy gauge ttuubbuullaarr ssttaaiinnlleessss sstteeeell pprriimmaarryy hheeaatt eexxcchhaannggeerr quickly
transfers heat to provide warm conditioned air to the structure. LLooww eenneerrggyy ppoowweerr vveenntt
bblloowweerr,, to increase efficiency and provide a positive discharge of gas fumes to the outside.
BBUURRNNEERRSS
Multiport Inshot burners will give years of quiet and efficient service. All models can be
converted to LL..PP.. ggaass with LP conversion kit.
IINNTTEEGGRRAATTEEDD SSYYSSTTEEMM CCOONNTTRROOLL
Exclusively designed operational program provides total control of furnace limit sensors,
blowers, gas valve, flame control and includes self diagnostics for ease of service. Also contains
dry contacts for EAC and HUM.
EENNEERRGGYY EEFFFFIICCIIEENNTT OOPPEERRAATTIIOONN
Furnace is certified by the manufacturer to leak 1% or less of nominal air conditioning CFM
delivered when pressurized to .5" water column with all inlets, outlets, and drains sealed.
AAIIRR DDEELLIIVVEERRYY
The variable speed blower motor has sufficient airflow for most heating and cooling
requirements and will switch from heating to cooling speeds on demand from room thermostat.
SSEECCOONNDDAARRYY HHEEAATT EEXXCCHHAANNGGEERR
The S-Series furnace has a special type 29- 4C™ stainless steel secondary heat exchanger to
reclaim heat from flue gases which would normally be lost.
SSTTYYLLIINNGG
HHeeaavvyy ggaauuggee sstteeeell aanndd ""wwrraapp--aarroouunndd"" ccaabbiinneett ccoonnssttrruuccttiioonn is used in the cabinet with baked-
on enamel finish for strength and beauty. Every orientation has at least two venting options.
There are no knockouts on cabinet.
FFEEAATTUURREESS AANNDD GGEENNEERRAALL OOPPEERRAATTIIOONN
The S-Series furnace utilizes a Silicon Nitride Hot Surface Ignition system, which eliminates the
waste of a constant burning pilot. The integrated system control lights the main burners upon a
demand for heat from the room thermostat. Complete front service access.
a. Low energy power venter
b. Vent proving pressure switches.