Instruction/ maintenance manual of the product TG8S*MP Johnson Controls
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356485-UIM-G-1211 RESIDENTIAL GAS FURNACE MODELS TG8S*MP , TGLS*MP , GG8S*MP , GGLS*MP (Single St age Multi- position / Low NOx) INSTALLATION MANUAL LIST OF SECTIONS SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
356485-UIM-G-1211 2 Johnson Controls Unitary Products SPECIFIC SAFETY RULES AND PRECA UTIONS 1. Only Natural gas or Propane (LP) ga s are approved for use with this furnace. 2. Install this furnace only in a location and position as specified in these instructions.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 3 COMBUSTION AIR QU ALITY (LIST OF CONT AMINANTS) The furnace requires OUTDOOR AI R for combustion when the furnace is located in any of the following environments.
356485-UIM-G-1211 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 e vident, the extent of the damage should be noted on the carrier ’s freight bill.
356485-UIM-G-1211 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.
356485-UIM-G-1211 6 Johnson Controls Unitary Products COIL/FURNA CE AS SEMBL Y - MC/FC/PC SERIES COILS FURNACE ASSEMBL Y - MC & FC SERIES COILS These coils are factory shipped for installation in either upflow or down- flow applications with no conversion.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 7 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.
356485-UIM-G-1211 8 Johnson Controls Unitary Products 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 the building jo ists, studs or framing.
356485-UIM-G-1211 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.
356485-UIM-G-1211 10 Johnson Controls Unitary Products SIDE RETURN Locate the “L” shaped corner loca tors. These indicate the size of the cut- out to be made in the furnace side panel. Refer to Figure 13. Install the side filter rack followi ng the instructions provided with that accessory .
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 11 The furnace must be isolated from the gas supply piping system by closing its individual external manua l shutoff valve during any pressure testing of the gas supply piping system at pressures equal to or less than 1/2 psig (3.
356485-UIM-G-1211 12 Johnson Controls Unitary Products SECTION V : ELECTRI CAL PO WER ELECTRICAL POWER CONNECTIONS Field wiring to the unit must be grounded. Electric wires that are field installed shall conform to the temper ature limitation for 63°F (35°C) rise wire when installed in accordance with instruct ions.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 13 For additional connection diagrams for a ll UP G equipment refer to “Low V oltage System Wiring” document available online at www .
356485-UIM-G-1211 14 Johnson Controls Unitary Products FIGURE 18: Thermostat Chart - Single S tage HP with Single St age PSC Furnaces HP 2C Single Stage Heat Pump – Single Stage PSC Furnace C 24 –.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 15 ACCESSOR Y CONNECTIONS The furnace control will allow power- sw itching control of various acces- sories. ELECTRONIC AIR CLEANER CONNECTION T wo 1/4” (0.64 cm) spade terminals (EAC and NEUTRAL) for electronic air cleaner connections are located on the control board.
356485-UIM-G-1211 16 Johnson Controls Unitary Products Single-Wire T winning Operatio n Heating - On a call for heat (W signal) from the wall ther mostat, both furnaces will start the igniti on sequence and the burners on both fur- naces will light.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 17 CA TEGOR Y 1 - 450 F . MAX. VENT TEMP . The venting system must be installed in accordance with Section 5.3, Air for Combustion and V entilation, of the National Fu el Gas Code Z223.1/NFP A 54 (latest edition), or Sections 7.
356485-UIM-G-1211 18 Johnson Controls Unitary Products Air Supply Openings and Duct s 1. An opening may be used in lieu of a duct to provide the outside air supply to an appliance unless othe rwise permitted by the authority having jurisdiction. The opening shall be located within 12” (30.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 19 Multi-story or common venting systems ar e permitted and must be installed in accordance with the National Fuel Gas Code, ANSI Z223.1/ NFP A 54 and / or the CSA B149.1, Natural Gas and Propane Inst alla- tion Codes, local codes, and the manu facture's instructions.
356485-UIM-G-1211 20 Johnson Controls Unitary Products GAS PIPING LEAK CHECK It is recommended that when the gas supply is first connected to the furnace, the ground union be loosened until the odor of gas is detected. When gas is detected, immediatel y tighten the union and check for gas leaks.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 21 T able 10: Gas Rate (CU FT/HR) Seconds For 1 Revolution Size of T est Dial Seconds For 1 Revolution Size of T e st Dial 1 Cu Ft 2 Cu Ft 5 Cu Ft .
356485-UIM-G-1211 22 Johnson Controls Unitary Products 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.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 23 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 duct s, about six feet (1.
356485-UIM-G-1211 24 Johnson Controls Unitary Products NOTES: 1. Airflow expressed in st andard cubic feet per minute (CFM). 2. Motor voltage at 1 15 V . T ab le 13: Blower Performance CFM - Any Position (without filter) - Bottom Return Models Speed Bottom Airflow Dat a (SCFM) Ext.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 25 NOTES: 1. Airflow expressed in st andard cubic feet per minute (CFM). 2. Return air is through si de opposite motor (left side). 3. Motor voltage at 1 15 V . 4. Airflow through across motor side (right side) may be sl ightly less than the data shown above.
356485-UIM-G-1211 26 Johnson Controls Unitary Products SECTION IX: 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.
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 27 FURNA CE CONTROL DIAGNOSTICS 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.
356485-UIM-G-1211 28 Johnson Controls Unitary Products DIAGNOSTIC F A UL T CODE ST ORAGE 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 .
356485-UIM-G-1211 Johnson Controls Unitary Produ cts 29 SECTION XI: WIRING DIA GRAM FIGURE 28: Wiring Diagram LEGEND DSDoorswitch MOTCirculatingmotor LSLim.
Subject to change without not ice. Published in U.S.A. 356485-UIM-G-1211 Copyright © 2011 by Johnson Controls, Inc. All rights reserved. Supersedes: 356485-UIM-F-0910 Johnson Contro ls Unitary Prod u.
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