KFS Series Submittal
12” Round KFS-DT
Duct Transition
Fan Relay
Heavy duty dual speed fan relay comes standard
with furnaces for air conditioning or summer fan
Limit Control
Integral automatic high temperature limit control in each heating element bank prevents
the delivery of air at unsafe temperatures. 20-35 KW also use a manual reset limit control to
completely shut the furnace off should an overtemperature condition occur.
Overcurrent Protection
60 Amp circuit breakers may be built in to comply with code requirements and offer
ultimate safety in overcurrent protection. Front mounted for easy reset. Multiple circuits
or single power source points
Motor
Energy Saving, Long life, thermally protected, permanently lubricated, direct drive ECM motor—no belts to adjust or slip.
This low noise, 3 speed motor is designed for use with air conditioning capability as well as heating. Very quiet operating.
60 second fan delay.
Air Filter
Convenient access for replacement of standard 16” x 20” x 1”
Do not use pleated filters.
Terminal Block
For Field Wiring
(Optional Special Order)
For single strike
Jumper Bar
for circuit breaker-JB
Heating Elements
Quick heating long life nichrome elements are sized
to provide proper watt density for maximum heat dissipation
by fan forced air convection currents
Time Delay / Contactor Sequencer
Actuates heating element banks at random intervals to minimize
electrical surges in compliance with EEI and NEMA standards.
Transformer
Each furnace is equipped with a 40VA low voltage
(24 volt) transformer for the thermostat control circuit.
Low Voltage Terminal Block
Comes standard. With aux 24V
access for dampers & air conditioning
Internal Diagram - exploded view
Heating Elements
Electronic Furnace KF/KFS ECO2S Series
KF Model has terminal block only,
used when total current is under 48 amps.