York TM9T Technical Manual

TECHNICAL GUIDE
96% TWO STAGE
GAS-FIRED RESIDENTIAL
MULTI-POSITION GAS FURNACES
MODELS: TM9T
NATURAL GAS
60 - 120 MBH INPUT
EFFICIENCY
RATING
CERTIFIED
Due to continuous product improvement,
specifications are subject to change without notice.
Visit us on the web at www.york.com for the most
up-to-date technical information.
Additional efficiency rating information can
be found at www.gamanet.org.
WARRANTY
Lifetime limited warranty on both heat exchangers to the origi-
nal purchaser; a 20-year limited warranty from original installa-
tion date to subsequent purchaser.
10-year warranty on the heat exchanger in commercial applica-
tions.
5-year limited parts warranty.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
ISO 9001
Certified Quality
Management System
DESCRIPTION
These compact units employ induced combustion, reliable hot
surface ignition and high heat transfer aluminized tubular heat
exchangers. The units are factory shipped for installation in
upflow or horizontal applications and may be converted for
downflow applications.
These furnaces are designed for residential installation in a
basement, closet, alcove, attic, recreation room or garage and
are also ideal for commercial applications. All units are factory
assembled, wired and tested to assure safe dependable and
economical installation and operation.
These units are Category IV listed and may be vented either
through side wall or roof applications using approved plastic
combustion air and venr piping.
FEATURES
• Two stage heating operation includes two stage gas valve,
two stage inducer operation and 4 speed, direct drive PSC
motor blower operation. Adjustable delay timer allows two
stage operation with a single stage thermostat.
• Easily applied in upflow, horizontal left or right, or downflow
installation with minimal conversion necessary.
• Compact, easy to install, ideal height 33" tall cabinet.
• Blower-off delay for cooling SEER improvement.
• Easy access to controls to connect power/control wiring.
• Built-in, high level self diagnostics with fault code display.
• Low unit amp requirement
application.
• All models are convertable to use propane (LP) gas.
• Electronic Hot Surface Ignition saves fuel cost with
increased dependability and reliability.
• 100% shut off main gas valve for extra safety.
• 24V, 40 VA control transformer and blower relay supplied
for add-on cooling.
• Hi-tech tubular aluminized steel primary heat exchanger with
stainless steel tube/aluminum fin secondary heat exchanger
for outstanding efficiency.
• Solid removable bottom panel allows easy conversion.
• Airflow leakage less than 1% of nominal airflow at
ductblaster conditions.
• No knockouts to deal with, making installation easier.
• Movable duct connector flanges for application flexibility.
• Quiet inducer operation.
• Inducer rotates for easy conversion of venting options.
• Fully supported blower assembly for easy access and
removal of blower.
• External air filters used for maximum flexibility in meeting
customers IAQ needs.
• Insulated blower compartment for thermal and acoustic
performance.
• 1/4 turn knobs provided for easy independent door removal.
• Internal condensate trap design (patent pending) provides
condensate management options, easy visual operation
check, and is self priming to prevent nuisance problems.
• Protection included from air intake, exhaust vent or
condensate blockage.
• Venting applications maybe installed as either 2 pipe sealed
combustion or single pipe vent using indoor combustion air.
444559-YTG-A-0409
for easy replacement