York TM8T Technical Guide

GAS-FIRED RESIDENTIAL

TECHNICAL GUIDE

TWO STAGE PSC MULTI-POSITION GAS FURNACES STANDARD & Low NOx MODELS

MODELS: TM8T / TMLT

NATURAL GAS 60 - 120 MBH INPUT

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 rating information can be found at

www.ahridirectory.org

WARRANTY

20-year limited warranty on the heat exchanger. 10-year heat exchanger warranty on commercial applications. 5-year limited parts warranty.

Extended 10-year limited parts warranty when product is registered online within 90 days of purchase for replacement or closing for new home construction.

521149-UTG-D-0715

DESCRIPTION

These compact units employ induced combustion, reliable hot surface ignition and high heat transfer al uminized 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 I listed and may be common vented with another gas appliance as allowed by the National Fuel Gas Code.

FEATURES

• Two stage heating operation includes two stage gas valve, two stage inducer operation and 4 speed PSC 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 for easy replacement 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.

• Solid removable bottom panel allows easy conversion.

• Airflow leakage less than 1% of nominal airflow for ductblaster conditions.

• No knockouts to deal with, making installation easier.

• Movable duct connector flanges for application flexibility.

• Quiet inducer operation, burner, and blower 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.

• Low NOx models have been designed to meet specific code requirements.

• Venting applications - may be installed as a common vent with other gas-fired appliances or use a masonry chimney.

• 1/4 turn knobs provided for easy independent door removal.

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

521149-UTG-D-0715

LEFT SIDE

RIGHT SIDE

.5”

RETURN END

24.25”

29.5”

28.5”

Electrical Entry

Gas Pipe Entry

Thermostat Wiring

FRONT

14”

1”

1.5”

23”

SUPPLY END

24.38”

20”

.5”

Gas Pipe Entry

Thermostat Wiring

33”

.5”

Electrical Entry

Vent Connection Outlet

4” Diameter

Outlet

Vent Connection

Cabinet and Duct Dimensions

Models

Nominal

CFM

Cabinet

Size

ABC

TM(8,L)T060A12MP11 1200 A 14 1/2 13 3/8 10.3 TM(8,L)T080B12MP11 1200 B 17 1/2 16 3/8 11.8 TM(8,L)T080C16MP11 1600 C 21 19 7/8 13.6 TM(8,L)T100C16MP11 1600 C 21 19 7/8 13.6 TM(8,L)T100C20MP11 2000 C 21 19 7/8 13.6 TM(8,L)T120C20MP11 2000 C 21 19 7/8 13.6

Table 1: Ratings & Physical / Electrical Data

Models

High Fire

Input

Low Fire

Input

High Fire

Output

Low Fire

Output

MBH MBH MBH MBH CFM % °F TM(8,L)T060A12MP11 60 39 47 31 1200 80.0 TM(8,L)T080B12MP11 80 52 63 42 1200 80.0 TM(8,L)T080C16MP11 80 52 63 42 1600 80.0 TM(8,L)T100C16MP11 100 65 80 52 1600 80.0 TM(8,L)T100C20MP11 100 65 80 52 2000 80.0 TM(8,L)T120C20MP11 120 78 96 62 2000 80.0

Models

TM(8,L)T060A12MP11 30-60 15-45 1/3 4.8 11 x 8 7.0 14 94 TM(8,L)T080B12MP11 30-60 20-50 1/3 4.8 11 x 8 7.0 14 103

High Fire

Air Temp. Rise

°F °F HP Amps In. Lbs.

Low Fire

Air Temp. Rise

Blower

TM(8,L)T080C16MP11 30-60 20-50 1/2 7.0 11 x 10 10.0 14 114 TM(8,L)T100C16MP11 30-60 20-50 1/2 7.0 11 x 10 10.0 14 118 TM(8,L)T100C20MP11 30-60 20-50 1 14.5 11 x 11 17.0 12 122 TM(8,L)T120C20MP11 30-60 20-50 1 14.5 11 x 11 17.0 12 129

Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures. Wire size and over current protection must comply with the National Electrical Code (NFPA-70-latest edition) and all local codes. The furnace shall be installed so that the electrical components are protected from water.

Cabinet Dimensions (Inches)

Nominal

Airflow

AFUE

Blower

Size

Total Unit

Amps

Max.

Over-current

Protect

10 10 15 15 20 20

Min. wire Size

(awg) @ 75 ft

one way

Max. Outlet

Air Temp

Operating

weight

160 160 160 160 160 160

2 Johnson Controls Unitary Products

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