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Johnson Controls TM9T*MP manual

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  • Page 1

    505309-UIM-D-0511 EFFICIENCY RATING CERTIFIED ISO 9001 Certified Quality Management System RESIDENTIAL GAS FURNACE MODELS: TM9T*MP (96% AFUE T wo St age Multi-position) INSTALLATION MANUAL LIST OF SECTIONS SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 DUCTWORK . . . . . . . . . . . . . . . . [...]

  • Page 2

    505309-UIM-D-0511 2 Johnson Controls Unitary Products These high efficiency , compact units employ induced combustion, reli- able hot surface ignition and high hea t 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[...]

  • Page 3

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 3 • This furnace is not approved for installation in trailers or recre- ational vehicles. • Furnaces for installation on co mbustible flooring shall not be installed directly on carpeting, t ile or other combustible material other than wood flooring. • Check the rating plate and power suppl[...]

  • Page 4

    505309-UIM-D-0511 4 Johnson Controls Unitary Products INSPECTION As soon as a unit is r eceived, it should be inspected for possible dam- age during transit. If damage is evident, th e extent of the damage should be noted on the carrier ’s freight bill. A separate request for inspection by the carrier ’s agent shoul d be made in writing. Also, [...]

  • Page 5

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 5 SECTION II: DUCTWORK DUCTWORK GENERAL INFORMA TION The duct system’s design and installation must: 1. Handle an air volume appropriate for the served space and within the operating parameters of the furnace specifications. 2. Be installed in accordance of Na tional Fire Protection Association[...]

  • Page 6

    505309-UIM-D-0511 6 Johnson Controls Unitary Products COIL INST ALLA TION COIL/FURNA CE ASSEMBL Y - MC/FC/PC SERIES COILS FURNACE ASSEMBL Y - MC & FC SERI ES COILS These coils are factory shipped for installation in either upflow or down- flow applications with no conversion. Position the coil casing over or under the furnace opening as shown i[...]

  • Page 7

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 7 Dimension “C” should be at least 2/3 of dimension “D”. See Figure 6 CRITICAL COIL PROJECTION The coil assembly must be located in the duct such that a minimum dis- tance is maintained between the top of the coil and the top of the duct. Refer to T able 2. COIL / FURNACE ASSEMBL Y - HC S[...]

  • Page 8

    505309-UIM-D-0511 8 Johnson Controls Unitary Products HORIZONT AL APPLICA TION A TTIC INST ALLA TION 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 intersection of the top and two sides of the furnace and t[...]

  • Page 9

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 9 SECTION III: FIL TERS FIL TER INST ALLA TION All applications require the use of a field installed filter . All filters and mounting provision must be field supplied. Filters must be installed external to the furnace cabinet. DO NOT attempt to install filters inside the furnace. 1. Air velocity[...]

  • Page 10

    505309-UIM-D-0511 10 Johnson Controls Unitary Products HORIZONT AL APPLICA TION Horizontal Filters Any branch duct (rectangular or r ound duct) attached to the plenum must attach to the vertical plenum before the filter . The use of straps and/or supports is required to support the weight of the external filter box. Downflow Filt ers Downflow furna[...]

  • Page 11

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 11 GAS ORIFICE CONVERSION FOR PR OP ANE (LP) This furnace is constructed at the facto ry for natural gas-fired operation, but may be converted to operate on propane (LP) gas by using a factory-supplied LP conversion kit. Fo llow the instructions supplied with the LP kit. HIGH AL TITUDE GAS ORIFIC[...]

  • Page 12

    505309-UIM-D-0511 12 Johnson Controls Unitary Products Annual Fuel Utilizat ion Efficiency ( A FUE) numbers are determined in accordan ce with DOE T est procedures. Wire size and over current protection must comply with the National Electri cal Code (NFP A-70-latest edition) and all local code s. The furnace shall b e installed so that the el ectri[...]

  • Page 13

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 13 For additional connection diagrams for all J ohnson Controls Unitary Products’ equipment refer to “Low V oltage System Wiring” do cument available on-line at www .upgnet.com in the Product Catalog Section. FIGURE 18: Thermostat Chart - Single S tage AC with Single St age PSC F urnaces AC[...]

  • Page 14

    505309-UIM-D-0511 14 Johnson Controls Unitary Products FIGURE 19: Thermostat Chart - T wo Stage HP with T wo Stage PSC Furnace HP 22A O Reversing Va lve Energized in Cool C 24 – Vo lt Com mon R 24 – Vo lt Hot W1 OUT First Stage Heat W2 OUT Second Stage Heat Y2 OUT Second Stage Compressor Y1 Sing le Stage Compressor X/L Malfunction Light Y2 Seco[...]

  • Page 15

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 15 ACCESSOR Y CONNECTIONS The furnace control will allow power-switching control of various accessories. ELECTRONIC AIR CLEANER CONNECTIO N T wo 1/4” (6.4 mm) spade terminals (EAC and NEUTRAL) for electronic air cleaner connections are located on the control board. The te rminals provide 1 15 V[...]

  • Page 16

    505309-UIM-D-0511 16 Johnson Controls Unitary Products T w inning Instructions Connect the control wiring as shown in Figure 21. 1. Connect the low voltage wiring fr om the wall thermostat to the termi- nal strip on the control board of Furnace #1. 2. Connect a wire from the TWIN terminal of F urnace #1 to the TWIN terminal of Furnace #2. 3. Instal[...]

  • Page 17

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 17 The condensate will flo w to the dr ain better if an open stand pipe is installed in the drain line. See Figure 22. If evaporator coil or humidifier drains are combined with the furnace drain, then the open stand pipe could be raised higher , above the 5” minimum. CONDENSA TE DRAIN TERMINA T[...]

  • Page 18

    505309-UIM-D-0511 18 Johnson Controls Unitary Products FIGURE 24: Upflow Configuration INDUCER ROT A TED FOR LEFT SIDE VENTING UPFLOW AS RECEIVED INDUCER ROT A TED FOR RIGHT SIDE VENTING When drain hose routing changes are required, be sure to cap all un-used openings. If rerouting hoses - excess length should be cut off so that no sagging loops wi[...]

  • Page 19

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 19 FIGURE 25: Downflow Configuration AIRFLOW AIRFLOW Move rain gutter hose to this position. DOWNFLOW - INDUCER ROT A TED FOR LEFT SIDE VENTING DOWNFLOW - INDUCER ROT A TED FOR RIGHT SIDE VENTING Move pressure switch hose to this position. NOTE: May require the longer hose that is provided with w[...]

  • Page 20

    505309-UIM-D-0511 20 Johnson Controls Unitary Products FIGURE 26: Horizontal Left Configuration HORIZONT AL - LEFT INDUCER ROT A TED HORIZONT AL - LEFT INDUCER AS RECEIVED AIRFLOW AIRFLOW Move pressure switch hose to this position. NOTE: May require the longer hose that is provided with wider cabinets. Move rain gutter hose to this position NOTE: M[...]

  • Page 21

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 21 FIGURE 27: Horizontal Right Configuration AIRFLOW HORIZONT AL - RIGHT INDUCER ROT A TED HORIZONT AL - RIGHT INDUCER AS RECEIVED Move rain gutter hose to this position. Move pressure switch hose to this position. Change condensate drain connection to the 90° fitting provided. Move condensate d[...]

  • Page 22

    505309-UIM-D-0511 22 Johnson Controls Unitary Products SECTION VIII: COMB USTION AIR AND VENT SY STEM COMBUSTION AIR AND VENT SAFETY This Category IV , dual certified direct vent furnace is designed for resi- dential application. It may be install ed without modification to the con- densate system in a basement, garage, equipment room, alcove , att[...]

  • Page 23

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 23 Dimensions are those requi red in Stand ard ASTM D-331 1. Example: An 80,000 BTUH furnace requires 3 2 feet of pipe and five 90º elbows. Using 2" pipe and standard elbows, t he total equivalent length will be: This exceeds the 65 foot maximum equi valent length of 2" pipe allowed fo[...]

  • Page 24

    505309-UIM-D-0511 24 Johnson Controls Unitary Products VENT CLEARANCES † A vent shall not terminate directly above a sidewalk or pa ved driveway that is located between t wo single family dwellings and serves both dwellings. †† 12” (30.5 cm) up from the botto m edge of the structur e for T wo- pipe (direct vent) applications per ANSI Z223.1[...]

  • Page 25

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 25 VENT SY STEM This furnace is certified to be installed with one of two possible vent configurations. 1. Horizontal vent system. This vent system can be installed com- pletely horizontal or combinations of horizontal, vertical, or offset using elbows. 2. V ertical vent system. This vent system [...]

  • Page 26

    505309-UIM-D-0511 26 Johnson Controls Unitary Products DOWNWA RD VENTING In some applications, it may be neces sary to run the ven t pipe and air intake downwards. If this is to be done, the followin g rules must be fol- lowed. • A condensate trap hose must be connected to both the air intake pipe and the vent pipe at the lowest part of the horiz[...]

  • Page 27

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 27 An unconfined space is not less than 50 cu.f t (1.42 m 3 ) per 1,000 Btu/ hr (0.293 kW/h) input rating for all of the appliances installed in that area. Rooms communicating directly with the space containing the appli- ances are considered part of the unconfined space, if doors ar e fur- nishe[...]

  • Page 28

    505309-UIM-D-0511 28 Johnson Controls Unitary Products Combustion Air Source from Out doors 1. T wo permanent opening s, one within 12” (30.5 cm) of the top and one within 12” (30.5 cm) of bottom of the confined space, T wo per- manent openings, shall communicate directly or by means of ducts with the outdoors, crawl spaces or attic spaces. 2. [...]

  • Page 29

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 29 SECTION IX: ST ART -UP AND ADJUSTMENTS The initial start-up of the furnace requires the following addition al procedures: When the gas supply is initially connec ted to the furnace, the ga s piping may be full of air . In order to purge this air, it is recommended that the ground union be loos[...]

  • Page 30

    505309-UIM-D-0511 30 Johnson Controls Unitary Products T able 15: Gas Rate (CU FT/HR) at Full Inpu t Seconds For 1 Revolution Size of T est Dial Seconds For 1 Revolution Size of T est Dial 1 Cu Ft 2 Cu Ft 5 Cu Ft 1 Cu Ft 2 Cu Ft 5 Cu Ft 10 360 720 1800 55 65 131 327 1 1 327 655 1636 56 64 129 321 12 300 600 1500 57 63 126 316 13 277 555 1385 58 62 [...]

  • Page 31

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 31 ADJUSTMENT OF MANIFO LD GAS PRESSURE & INPUT RA TE Inlet and manifold gas pressure may be measured by connecting the “U” tube manometer to the gas valve with a piece of tubing. Follow the appropriate section in the instructions below. Refer to Figure 39 for a drawing of the locations o[...]

  • Page 32

    505309-UIM-D-0511 32 Johnson Controls Unitary Products ADJUSTMENT OF TEMPERA TURE RISE After about 5 minutes of operation, determine the furnace temperature rise. T ake readings of both the return air and the heated air in the ducts, about six feet (1.83 m) from the furnace where they will not be affected by radiant heat. Increase the blower speed [...]

  • Page 33

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 33 NOTES: 1.Airflow expressed in st andard cubic feet per minute (CFM). 2.Return air is through side opposite mot or (lef t side). 3.Motor voltage at 1 15 V . 4.Airflow thro ugh across motor side ( right side) ma y be sli ghtly less than the data shown above. Blower Performance CFM - Any Position[...]

  • Page 34

    505309-UIM-D-0511 34 Johnson Controls Unitary Products SECTION X: SAFETY CONTROLS CONTROL CIR CUIT FUSE A 3-amp fuse is provided on the control circuit board to protect the 24- volt transformer from overload caus ed by control circ uit wiring errors. This is an A TO 3, automotive type fuse and is located on the control board. BLO WER DOOR SAFETY SW[...]

  • Page 35

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 35 FURNA C E CONTROL DIA GNOSTICS The furnace has built-in, self-diagnos tic capability . A blinking LED light on the control board can flash red, green or amber to indicate various conditions. The control con tinuou sly monitors its own operation and the operation of the system. If a failur e oc[...]

  • Page 36

    505309-UIM-D-0511 36 Johnson Controls Unitary Products DIAGNOSTIC F A UL T CODE STORA GE AND RETRIEV AL The control in this furnace is equipped with memory that will store up to five error codes to allow a serv ice technician to diagnose problems more easily . This memory will be retained even if power to the furnace is lost. This feature sho uld o[...]

  • Page 37

    505309-UIM-D-0511 Johnson Controls Unitary Produ cts 37 SECTION XIII: WIRING DIAGRAM FIGURE 43: Wiring Diagram  LEGEND DSDoorswitch MOTCirculatingmotor LSLimitswitch ROSRolloutswitch IDMInducermotor HUMHumidifier XFMRTransformer EAC?[...]

  • Page 38

    Subject to change without not ice. Published in U.S.A. 505309-UIM-D-0511 Copyright © 2011 by Johnson Controls, Inc. All rights reserved. Supersedes: 505309-UIM-C-0910 Johnson Contro ls Unit ary Products 5005 Y ork Drive Norman, OK 73069[...]