INSTALLATION MANUAL
RESIDENTIAL GAS FURNACE MODELS TM9V*MP
(96% AFUE Two Stage Variable Speed Multi-position)
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
LIST OF SECTIONS
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CONDENSATE PIPING AND FURNACE
VENTING CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
COMBUSTION AIR and VENT SYSTEM . . . . . . . . . . . . . . . . . . . . 22
LIST OF FIGURES
Duct Attachment | . 5 | Thermostat Chart - Two Stage HP with Two Stage |
|
Vertical Applications | . 5 | Variable Speed Furnace (Hot Heat Pump or Conventional) | 15 |
Coil Flange | . 5 | Typical. Condensate drain, vertical installation | 16 |
Horizontal Right Application | . 6 | Typical. Combustion Pipe Drain Tee | 17 |
Horizontal Left Application | . 6 | Upflow Configuration | 18 |
PC Series Upflow Coil Installation | . 6 | Downflow Configuration | 19 |
Horizontal Left or Right application (Right Shown) | . 6 | Horizontal Left Configuration | 20 |
Combustible Floor Base Accessory | . 7 | Horizontal Right Configuration | 21 |
Horizontal Application | . 7 | Dimensions | 22 |
Typical Attic Installation | . 7 | Home Layout | 24 |
Typical Suspended Furnace / Crawl Space Installation | . 7 | Termination Configuration - 1 Pipe | 25 |
Dimensions | . 8 | Termination Configuration - 2 Pipe | 25 |
Side Return Cutout Markings | . 8 | Termination Configuration - 2 Pipe Basement | 25 |
Gas Valve | . 9 | Double Horizontal Combustion Air Intake and Vent Termination . . . | 25 |
Upflow/Downflow Gas Piping | . 9 | Double Vertical Combustion Air Intake and Vent Termination | 25 |
Horizontal Gas Piping | . 9 | Direct Vent Air Intake Connection and Vent Connection | 26 |
Electrical Wiring | 11 | Combustion Airflow Path Through The Furnace Casing | 26 |
Thermostat Chart - Single Stage Air Conditioners |
| Outside and Ambient Combustion Air | 27 |
with Two Stage Variable Speed Furnaces | 12 | Attic and Crawl Space Combustion Air Termination | 28 |
Thermostat Chart - Single Stage Heat Pump with Two Stage |
| Gas Valve | 31 |
Variable Speed Furnace (Hot Heat Pump or Conventional) | 13 | Reading Gas Pressure | 31 |
Thermostat Chart - Two Stage AC with |
| Furnace Control Board | 32 |
Two Stage Variable Speed Furnace | 14 | Furnace Control Event Schedule | 35 |
|
| Wiring Diagram | 37 |
LIST OF TABLES
Unit Clearances to Combustibles | . 4 | Equivalent Length of Fittings | 23 |
Coil Projection Dimensions - PC Series Coils | . 6 | Combustion Air Intake and Vent Connection Size at |
|
Cabinet and Duct Dimensions | . 8 | Furnace (All Models) | 23 |
Recommended Filter Sizes (High Velocity 600 FPM) | . 8 | Estimated Free Area | 26 |
Nominal Manifold Pressure - High Fire | 10 | Unconfined Space Minimum Area in Square Inch | 27 |
Nominal Manifold Pressure - Low Fire | 10 | Free Area | 27 |
Ratings & Physical / Electrical Data | 11 | Gas Rate (CU FT/HR) at Full Input | 30 |
Maximum Equivalent Pipe Length | 22 | Inlet Gas Pressure Range | 31 |
Elbow Dimensions | 22 | Nominal Manifold Pressure | 31 |
These high efficiency, compact units employ induced combustion, reli- able 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 applica- tions.
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 oper- ation.
These units are Category IV listed and may not be common vented with another gas appliance as allowed by the National Fuel Gas Code.
SECTION I: SAFETY
This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not avoided may result in minor or moderate injury. It is also used to alert against unsafe practices and hazards involving only property dam- age.
