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5894307-UIM-B-0920

22

Johnson Controls Ducted Systems

Air Supply Openings and Ducts

• An opening can be used in lieu of a duct to provide the outside air

supply to an appliance unless otherwise permitted by the author-
ity having jurisdiction. The opening must be located within 12 in.
(30.5 cm) horizontally from the burner level of the appliance. See
the Combustion Air Source from Outdoors section and the COM-
BUSTION AIR AND  VENT  SAFETY  section  for  additional  infor-
mation,  and  see  the  venting  safety  check  procedure  on  the
following page.

• The duct must be either metal or a material meeting the class 1

requirements of CAN4-S110 Standard for Air Ducts.

• The duct must be least the same cross-sectional area as the free

area of the air supply inlet opening to which it connects.

• The duct must terminate within 12 in. (30.5 cm) above and 24 in.

(61 cm) horizontally from the burner level of the appliance having
the largest input.

• A square or rectangular shaped duct must only be used when the

required free area of the supply opening is 9 in

2

 (58.06 cm

2

) or

larger.  When  a  square  or  rectangular  duct  is  used,  its  small
dimension must not be less than 3 in. (7.6 cm).

• An air inlet supply from outdoors must be equipped with a means

to prevent the direct entry of rain and wind. Such means must not
reduce the required free area of the air supply opening.

• An air supply inlet opening from the outdoors must be located not

less than 12 in. (30.5 cm) above the outside grade level.

Combustion Air Source from Outdoors

• Two permanent openings, one within 12 in. (30.5 cm) of the top

and  one  within  12  in.  (30.5  cm)  of  the  bottom  of  the  confined
space, must communicate directly or by means of ducts with the
outdoors, crawl spaces, or attic spaces.

• One permanent opening, commencing within 12 in. (30.5 cm) of

the  top  of  the  enclosure, is  permitted where the  equipment has
clearances of at least 1 in. (2.54 cm) from the sides and back and
6 in. (15.2 cm) from the front of the appliance. The opening must
communicate directly with the outdoors and have a minimum free
area of:

- 1 in.

2

/3,000 BTU/hr (700mm2/kW) of the total input rating

of all equipment located in the enclosure

- Not less than the sum of all vent connectors in the confined

space

• The duct must be least the same cross-sectional area as the free

area of the air supply inlet opening to which it connects.

• The  blocking  effects  of  louvers,  grilles,  and  screens  must  be

given consideration in calculating free area. If the free area of a
specific louver or grille is not known, see Table 9.

Ventilated Combustion Air

The ventilated attic space or crawl space from which the combustion air
is taken must comply with the requirements specified in the Combustion
Air Source from Outdoors section in these instructions or in Section 5.3,
Air for Combustion and Ventilation of the National Fuel Gas Code, ANSI
Z223.1  (latest  edition).  This  type  of  installation  requires  two  correctly
sized pipes. One pipe brings combustion air from a correctly ventilated
attic space or crawl space and the second pipe extends from the fur-
nace vent connection (top right of unit) to the exterior of the building.
See Table 5 for intake pipe sizing, allowable length, and elbow usage.
Follow all notes, procedures, and required materials in the COMBUS-
TION AIR/VENT PIPE SIZING section when installing the combustion
air pipe from the unit and into a ventilated attic space or crawl space. 

Note:

 Do not terminate vent pipe in an attic or crawl space.

Ventilated Combustion Air Termination

See  Figure  29  for  required  attic  termination  for  the  combustion  air
intake pipe. For attic termination, use two 90° elbows with the open end
in a downward position. Make sure to maintain 12 in. (30.5 cm) clear-
ance above any insulation, flooring, or other material. 
A crawl space combustion air installation consists of a straight pipe from
the PVC coupling on the burner box that extends into the crawl space
and terminates with a 1/4 in.(6.4 mm) mesh screen and no elbows.

 Figure 28: 

Ambient Combustion Air

Gable

Vent

Gas

Vent

Soffit

Vent

Ventilated

Attic

Top Above

Insulation

Optional

Inlet (a)

Outlet

Air (a)

Ventilated

Crawl Space

Gas

Water

Heater

Furnace

Soffit

Vent

Gas

Water

Heater

Inlet

Air (a)

Inlet

Air (b)

Furnace

Gas

Vent

Outlet

Air (a)

Outlet

Air (b)

Inlet

Air (a)

Inlet

Air (b)

Gas

Water

Heater

Furnace

Gable

Vent

Gas

Vent

Ventilated

Attic

Top Above

Insulation

Summary of Contents for TL9E Series

Page 1: ...Wiring Diagram 32 LIST OF TABLES Unit Clearances to Combustibles 4 Cabinet and Duct Dimensions 6 Recommended Filter Sizes High Velocity 600 FPM 7 Ratings and Physical Electrical Data 8 Maximum Equival...

Page 2: ...alled 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 nom...

Page 3: ...t piping and elbows are required As centralized with the air distribution as possible Where adequate combustion air is available particularly when the appliance is not using outdoor combustion air Whe...

Page 4: ...be needed to ensure against drain pan distortion On all installations without a coil a removable access panel is recom mended in the outlet duct such that smoke or reflected light would be observable...

Page 5: ...ION This appliance is certified for line contact when the furnace is installed in the horizontal left or right position The line contact is only permissible between lines that are formed by the inters...

Page 6: ...t and quiet fur nace operation When suspending the furnace use a secure platform constructed of plywood or other building materials secured to the floor or ceiling joists See Figure 5 for details and...

Page 7: ...p leg and ground union is required See Figure 10 For left side supply gas pipe arrangement two 1 2 in elbows and two 1 2 in x 1 1 2 in pipe nipples must be used The arrangement shown in Figure 9 align...

Page 8: ...with DOE test procedures Wire size and overcurrent protection must comply with the National Electrical Code NFPA 70 latest edition and all local codes The furnace must be installed so the electrical...

Page 9: ...Figure 11 LOW VOLTAGE CONTROL WIRING CONNECTIONS Install the field supplied thermostat by following the instructions that come with the thermostat With the thermostat set in the OFF position and the m...

Page 10: ...1 67 LU RQGLWLRQHU 9ROW RPPRQ RPSUHVVRU RQWDFWRU XOO 6WDJH HDW 7 50267 7 Figure 13 Thermostat Chart Single Stage HP with Single Stage Furnaces 6LQJOH 6WDJH R1R XUQDFH 6LQJOH 6WDJH HDW 3XPS 6HFRQG 6WDJ...

Page 11: ...pplied to the hose con nected to the top of the condensate trap Screw the condensate trap to the condensate trap bracket supplied Then thread the hose adapters together below the furnace casing using...

Page 12: ...collec tor box as shown in Figures 16 and 17 The drain hose must not sag or droop after it is installed If glue is used when connecting the intake pipe to the intake coupling the drain opening in the...

Page 13: ...5894307 UIM B 0920 Johnson Controls Ducted Systems 13 Figure 16 Upflow Configuration UPFLOW LEFT SIDE DRAIN UPFLOW RIGHT SIDE DRAIN EXTERNAL CONDENSATE TRAP EXTERNAL CONDENSATE TRAP A1128 001...

Page 14: ...DRAIN AIRFLOW EXTERNAL CONDENSATE TRAP HORIZONTAL LEFT HORIZONTAL RIGHT MOVE RAIN GUTTER HOSE TO THIS POSITION MOVE CONDENSATE DRAIN HOSE TO THIS POSITION INTAKE PIPE DRAIN AIRFLOW EXTERNAL CONDENSAT...

Page 15: ...models are supplied with 2 in 5 1 cm vent connections When the pipe must be increased to 3 in 7 6 cm diameter the transition from 2 in to 3 in must be done as close to the furnace as possible The 2 i...

Page 16: ...igure 18 Elbow Dimensions A A A A STANDARD ELBOW LONG SWEEP ELBOW Table 6 Elbow Dimensions Elbow A Dimension Illustrated in Figure 18 2 in Standard 2 5 16 in 3 in Standard 3 1 16 in 2 in Sweep 3 1 4 i...

Page 17: ...nform to ASTM D2564 for PVC or ASTM D2235 for ABS piping 7 All joints must provide a permanent airtight and watertight seal 8 Install the combustion air and vent piping such that it has a 1 4 in ft 21...

Page 18: ...equirements of the gas supplier 12 in 30 5 cm or in accordance with local installation codes and the requirements of the gas supplier F Clearance to outside corner 12 in 30 5 cm or in accordance with...

Page 19: ...3 to 24 Each furnace must have a separate vent pipe Under NO circumstances can the two vent pipes be tied together The combustion air side of the two pipe configuration shown in Figures 23 and 24 can...

Page 20: ...tion See Figure 28 VENTILATED COMBUSTION AIR Combustion air is supplied through a PVC or ABS pipe that is connected to the PVC coupling attached to the burner box and is terminated in a ventilated att...

Page 21: ...operated damper or manually adjustable louvers are not permitted for use An automatically operated damper or automatically adjustable louvers must be interlocked so the main burner can not operate un...

Page 22: ...kW of the total input rating of all equipment located in the enclosure Not less than the sum of all vent connectors in the confined space The duct must be least the same cross sectional area as the fr...

Page 23: ...s dryers and TURN ON any exhaust fans such as range hoods and bathroom exhausts so they shall operate at maximum speed Open the fireplace dampers Do not operate a summer exhaust fan 4 Follow the light...

Page 24: ...surface igniter glows for about 17 s b After this warm up the induced draft blower starts again and the ignition module opens the main gas valve c After flame is established the supply air blower sta...

Page 25: ...0 300 750 78 46 92 231 25 144 288 720 80 45 90 225 26 138 277 692 82 44 88 220 27 133 267 667 84 43 86 214 28 129 257 643 86 42 84 209 29 124 248 621 88 41 82 205 30 120 240 600 90 40 80 200 31 116 23...

Page 26: ...ws on main gas valve 2 Turn on gas and electrical supplies and follow the operating instruc tions to place the unit back in operation 3 Adjust manifold pressure by adjusting gas valve regulator screw...

Page 27: ...gas sample for analysis it is permissi ble to drill a small hole in the plastic flue pipe for a sample probe pro vided that the vent piping is PVC and the hole is correctly sealed afterwards If using...

Page 28: ...ated on the furnace vesti bule panel near the gas valve This is an automatic reset control that provides over temperature protection due to reduced airflow This may be caused by the following A dirty...

Page 29: ...sensed within 1 0 s The gas valve de energizes and the control begins a recycle operation A normal ignition sequence begins after a 15 s inter purge If during the five recycles the gas supply does not...

Page 30: ...d Red Flashes Indicates incorrect line voltage polarity The polar ity of the incoming power to the furnace is reversed Soft Lockout The control includes a soft lockout that resets automati cally after...

Page 31: ...Door 1 5 ft required GROMMET 3 required HARNESS WIRING HOSE CONDENSATE HOSE RAIN GUTTER KNOB QUARTER TURN 4 required MOTOR MOUNT ORIFICE BURNER PAN CONDENSATE PLUG SEAL 7 8 in PLUG SEAL 2 3 8 in PLUG...

Page 32: ...5894307 UIM B 0920 32 Johnson Controls Ducted Systems SECTION XII WIRING DIAGRAM Figure 33 Wiring Diagram...

Page 33: ...ree Ells of 90 Degree Ells Polarity is correct black is L1 hot white is N neutral Ground wire is connected Line voltage value to furnace volts AC Low voltage value between R and C on furnace control b...

Page 34: ...ure in w c Return Static in w c after Air Side Heating Air Side Cooling Air Side Continuous Fan Clean Up Give owner the owner s manual provided Explain thermostat use and programming if applicable to...

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