Johnson Controls Residential Gas TM9V MP User Manual

Installation manual

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438335-UIM-B-0509

EFFICIENCY
RATING
CERTIFIED

ISO 9001

Certified Quality

Management System

RESIDENTIAL GAS FURNACE MODELS
TM9V*MP

(96% AFUE Two Stage Variable Speed Multi-position)

INSTALLATION MANUAL

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
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 29
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . 36
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

LIST OF FIGURES

Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Vertical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Coil Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Horizontal Right Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Horizontal Left Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PC Series Upflow Coil Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Horizontal Left or Right application (Right Shown) . . . . . . . . . . . . . . 6
Combustible Floor Base Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Horizontal Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Attic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Suspended Furnace / Crawl Space Installation . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Side Return Cutout Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Upflow/Downflow Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Horizontal Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermostat Chart - Single Stage Air Conditioners
with Two Stage Variable Speed Furnaces . . . . . . . . . . . . . . . . . . . . 12
Thermostat Chart - Single Stage Heat Pump with Two Stage
Variable Speed Furnace (Hot Heat Pump or Conventional) . . . . . . 13
Thermostat Chart - Two Stage AC with
Two Stage Variable Speed Furnace . . . . . . . . . . . . . . . . . . . . . . . . 14

Thermostat Chart - Two Stage HP with Two Stage
Variable Speed Furnace (Hot Heat Pump or Conventional) . . . . . . . 15
Typical. Condensate drain, vertical installation. . . . . . . . . . . . . . . . . 16
Typical. Combustion Pipe Drain Tee. . . . . . . . . . . . . . . . . . . . . . . . . 17
Upflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Downflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Horizontal Left Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Horizontal Right Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Termination Configuration - 1 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . . . . . 25
Double Horizontal Combustion Air Intake and Vent Termination . . . 25
Double Vertical Combustion Air Intake and Vent Termination . . . . . 25
Direct Vent Air Intake Connection and Vent Connection . . . . . . . . . 26
Combustion Airflow Path Through The Furnace Casing . . . . . . . . . 26
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . 27
Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . . 28
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Furnace Control Event Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Coil Projection Dimensions - PC Series Coils . . . . . . . . . . . . . . . . . . 6
Cabinet and Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Recommended Filter Sizes (High Velocity 600 FPM) . . . . . . . . . . . . 8
Nominal Manifold Pressure - High Fire . . . . . . . . . . . . . . . . . . . . . . 10
Nominal Manifold Pressure - Low Fire . . . . . . . . . . . . . . . . . . . . . . . 10
Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . 11
Maximum Equivalent Pipe Length . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Elbow Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Equivalent Length of Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Combustion Air Intake and Vent Connection Size at
Furnace (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Unconfined Space Minimum Area in Square Inch . . . . . . . . . . . . . . 27
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Gas Rate (CU FT/HR) at Full Input . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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.

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