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5402847-UIM-A-0917

2

Johnson Controls Unitary Products

SPECIFIC SAFETY RULES AND PRECAUTIONS

1.

Only Natural gas or Propane (LP) gas are approved for use with
this furnace.

2.

Install this furnace only in a location and position as specified in
these instructions.

3.

A gas-fired furnace for installation in a residential garage must be
installed as specified in these instructions.

4.

Provide adequate combustion and ventilation air to the furnace
space as specified in these instructions.

5.

Combustion products must be discharged outdoors. Connect this
furnace to an approved vent system only, as specified in SECTION
VI of these instructions.

6.

Test for gas leaks as specified in these instructions.

7.

Always install the furnace to operate within the furnace’s intended
temperature rise range. Only connect the furnace to a duct system
which has an external static pressure within the allowable range, as
specified on the furnace rating plate.

8.

When a furnace is installed so that supply ducts carry air circulated
by the furnace to areas outside the space containing the furnace,
the return air shall also be handled by duct(s) sealed to the furnace
casing and terminating outside the space containing the furnace.

9.

It is permitted to use the furnace for heating of buildings or struc-
tures under construction where the application and use must com-
ply with all manufacturer’s installation instructions including:

Proper vent installation;

Furnace operating under thermostatic control;

Return air duct sealed to the furnace;

Air filters in place;

Set furnace input rate and temperature rise per rating plate
marking;

Means for providing outdoor air required for combustion;

Return air temperature maintained between 55ºF (13ºC) and
80ºF (27ºC);

The 

air filter must be replaced

 upon substantial completion of

the construction process;

Clean furnace, duct work and components upon substantial
completion of the construction process, and verify furnace-
operating conditions including ignition, input rate, temperature
rise and venting, according to the manufacturer’s instructions.

10. When installed in a Non-HUD-Approved Modular Home or building

constructed on-site, combustion air shall not be supplied from occu-
pied spaces.

11. The size of the unit should be based on an acceptable heat loss

calculation for the structure. ACCA, Manual J or other approved
methods may be used.

12. When moving or handling this furnace prior to installation it is rec-

ommended to leave the doors on the furnace to provide support
and to prevent damage or warping of the cabinet. When lifting the
furnace by the cabinet, support the ends of the furnace rather than
lifting by the cabinet flanges at the return air openings (bottom or
sides) or supply air opening.

13. When lifting the furnace, it is acceptable to use the primary heat

exchanger tubes as a lifting point provided that the tubes are lifted
at the front of the heat exchangers where attached to the vestibule
panel. Do not use the top return bend of the heat exchangers as lift-
ing points as the tubes may shift out of position or their location
brackets/baffles.

SAFETY REQUIREMENTS

Refer to the unit rating plate for the furnace model number, and
then see the dimensions page of this instruction for return air ple-
num dimensions in Figure 12. The plenum must be installed
according to the instructions.

Provide clearances from combustible materials as listed under
Clearances to Combustibles.

Provide clearances for servicing ensuring that service access is
allowed for both the burners and blower.

These models 

ARE NOT 

CSA listed or approved for installation

into a 

HUD  Approved  Modular  Home

 or a 

Manufactured

(Mobile) Home

.

This furnace is not approved for installation in trailers or recre-
ational vehicles.

Furnaces for installation on combustible flooring shall not be
installed directly on carpeting, tile or other combustible material
other than wood flooring.

Check the rating plate and power supply to be sure that the elec-
trical characteristics match. All models use nominal 115 VAC, 1
Phase, 60-Hertz power supply. DO NOT CONNECT THIS APPLI-
ANCE TO A 50 HZ POWER SUPPLY OR A VOLTAGE ABOVE
130 VOLTS.

Furnace shall be installed so the electrical components are pro-
tected from water.

Installing and servicing heating equipment can be hazardous due
to the electrical components and the gas fired components. Only
trained and qualified personnel should install, repair, or service
gas heating equipment. Untrained service personnel can perform
basic maintenance functions such as cleaning and replacing the
air filters. When working on heating equipment, observe precau-
tions in the manuals and on the labels attached to the unit and
other safety precautions that may apply.

 WARNING

Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or maintenance
can cause injury or property damage. Failure to carefully read and
follow all instructions in this manual can result in furnace mal-
function, death, personal injury and/or property damage. 
Only a
qualified contractor, installer or service agency should install this
product.

 WARNING

FIRE OR EXPLOSION HAZARD
Failure to follow the safety warnings exactly could result in serious
injury, death or property damage.
Never test for gas leaks with an open flame. Use a commercially
available soap solution made specifically for detection of leaks to
check all connections. A fire or explosion may result causing property
damage, personal injury or loss of life.

!

!

IMPORTANT

During installation, doors should remain on the furnace when
moving or lifting.

 CAUTION

This product must be installed in strict compliance with the installation
instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical codes.

!

Summary of Contents for TM8V C Series

Page 1: ...les All Dimensions in Inches and All Surfaces Identified with the Unit in an Upflow Configuration 4 Coil Projection Dimensions PC Series Coils 6 Cabinet and Duct Dimensions 9 Recommended Filter Sizes...

Page 2: ...provided that the tubes are lifted at the front of the heat exchangers where attached to the vestibule panel Do not use the top return bend of the heat exchangers as lift ing points as the tubes may...

Page 3: ...e National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 or for only the NFGC contact the American Gas Association 400 N Capital N W Washington DC 20001 or www NFPA org CANADA NSCN...

Page 4: ...ide detector with an alarm and battery back up is installed on the floor level where the gas equipment is to be installed In addition the installing plumber or gasfitter shall observe that a battery o...

Page 5: ...all be attached in such a manner as to prevent leaks DUCT FLANGES Four flanges are provided to attach ductwork to the furnace These flanges are rotated down for shipment In order to use the flanges re...

Page 6: ...furnace A mounting plate supplied with every coil should always be installed on the side desig nated as top side See Figures 4 5 FURNACE ASSEMBLY PC SERIES COILS Dimension C should be at least 2 3 of...

Page 7: ...r installation RESIDENTIAL AND MODULAR HOME UPFLOW RETURN PLENUM CONNECTION Return air may enter the furnace through the side s or bottom depend ing on the type of application Return air may not be co...

Page 8: ...mum clearance between the front of the furnace and the support rods or straps All six suspension points must be level to ensure proper and quiet fur nace operation When suspending the furnace use a se...

Page 9: ...Y END C 24 38 20 5 B Gas Pipe Entry Thermostat Wiring 33 A 5 Electrical Entry Vent Connection Outlet Vent Connection Outlet 4 Diameter Outlet Vent Connection Table 3 Cabinet and Duct Dimensions BTUH k...

Page 10: ...he type of gas approved for this furnace only use those approved gases The instal lation of a drip leg and ground union is required Refer to Figure 15 FIGURE 13 Side Return Cutout Markings IMPORTANT S...

Page 11: ...2742 2743 3048 Gas Heating Value BTU cu ft 800 3 5 3 5 3 5 Gas Heating Value MJ cu m 29 8 0 87 0 87 0 87 850 3 5 3 5 3 5 31 7 0 87 0 87 0 87 900 3 5 3 5 3 5 33 5 0 87 0 87 0 87 950 3 5 3 5 3 3 35 4 0...

Page 12: ...l thermostat and outdoor A C or heat pump using either conventional low voltage 24 VAC thermo stat wiring OR using four wire digital communications wiring To use conventional low voltage wiring see th...

Page 13: ...h may be connected to the FLT SWT terminals on the control board This feature is only functional when used with the Com munication Control It is intended for use with a water overflow switch Auxiliary...

Page 14: ...to Communication Control Installation Man ual LOW VOLTAGE CONTROL WIRING CONNECTIONS Install the field supplied thermostat by following the instructions that come with the thermostat With the thermost...

Page 15: ...s for all UPG equipment refer to Low Voltage System Wiring document available on line at www upgnet com in the Product Catalog Section FIGURE 21 Thermostat Chart Single Stage Air Conditioner with Two...

Page 16: ...ls Unitary Products FIGURE 22 Thermostat Chart Single Stage Heat Pump with Two Stage Variable Speed Furnace Y Y2 TM8V W1 Room thermostat or external fossil fuel kit must be used to control fossil fuel...

Page 17: ...5402847 UIM A 0917 Johnson Controls Unitary Products 17 FIGURE 23 Thermostat Chart Two Stage Air Conditioner with Two Stage Variable Speed Furnace A0918 001 TM8V S1 THXU280 W1 TMLV...

Page 18: ...02847 UIM A 0917 18 Johnson Controls Unitary Products FIGURE 24 Thermostat Chart Two Stage Heat Pump with Two Stage Variable Speed Furnace Hot Heat Pump or Conventional TM8V S1 THXU280 W1 A0919 001 TM...

Page 19: ...rate appliance designed to burn solid fuel It is recommended that the appliance is installed in a location where the space temperature is 32 F 0 C or higher If the appliance is installed in a locatio...

Page 20: ...no dimen sion smaller than 0 25 0 64 cm 3 A manually operated damper or manually adjustable louvers are not permitted for use 4 A automatically operated damper or automatically adjustable lou vers sh...

Page 21: ...onal area as the free area of the air supply inlet opening to which it connects 4 The blocking effects of louvers grilles and screens must be given consideration in calculating free area If the free a...

Page 22: ...ng placed into operation while all other appliances connected to the venting system are not in operation 1 Inspect the venting system for proper size and horizontal pitch Determine that there is no bl...

Page 23: ...clocking meter 1 Turn off all other gas appliances and pilots 2 Run furnace for a minimum of 3 minutes in heating operation 3 Measure time in sec for gas meter to complete 1 revolution and note readi...

Page 24: ...Size of Test Dial Seconds For 1 Revolution Size of Test Dial 1 Cu Ft 2 Cu Ft 5 Cu Ft 1 Cu Ft 2 Cu Ft 5 Cu Ft 10 360 720 1800 50 72 144 360 11 327 655 1636 51 71 141 355 12 300 600 1500 52 69 138 346...

Page 25: ...pplies back on and with the burners in operation check for gas leakage around the gas valve pressure port for leakage using an approved non corrosive gas leak detec tion fluid or other non flammable l...

Page 26: ...is dependent upon the panel that covers the blower compartment being in place and properly positioned ROLLOUT SWITCH CONTROLS These controls are mounted on the burner assembly If the temperature in th...

Page 27: ...l run at the speed selected on the FAN SPEED jumpers on the main control board HI COOL LO COOL HI HEAT or LO HEAT When the jumper is in the VS G position the blower will run at 50 of the high cool spe...

Page 28: ...ce will lock out for one hour and then restart 9 RED FLASHES Indicates reversed line voltage polarity grounding problem or reversed low voltage transformer wires Both heating and cooling operations wi...

Page 29: ...3 D A 1013 676 1245 842 1284 842 C C 844 591 1092 765 1130 746 D C HIGH LOW HEAT CFM 060B12 080B12 080C16 Jumper Settings HIGH HEAT LOW HEAT HIGH HEAT LOW HEAT HIGH HEAT LOW HEAT HEAT Tap ADJ Tap 1111...

Page 30: ...L Models Only MISCELLANEOUS ORIFICE BURNER Natural 45 SIGHT GLASS OVAL 2 Req d GASKET FOAM Door 1 5 ft Req d GASKET INTAKE PAN PLUG VENT HOLE BRACKET DOOR WIRING HARNESS FERRULE 3 Req d GROMMET 3 Req...

Page 31: ...of flame during call for heat Hot Neutral reversed OR poor ground neutral Gas valve shorted ON Check blower motor wiring Vent OR termination problem None Slow Green Slow Amber Rapid Amber 4 Amber Ste...

Page 32: ...5402847 UIM A 0917 32 Johnson Controls Unitary Products NOTES...

Page 33: ...Equipment and Accessories Owner Information Equipment Data Furnace Configuration Venting B Vent Electrical Line Voltage Outdoor Unit Model Outdoor Unit Serial Filter Thermostat Accessories Filter Loc...

Page 34: ...Side Continuous Fan PSC Clean Up Give owner the owner s manual provided Gas Type Explain thermostat use and programming if applicable to owner Cycle Test Operate the furnace through several heating c...

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