Instruction/ maintenance manual of the product LP8C/LPLC*MP Johnson Controls
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368262-UIM-B-1008 EFFICIENCY RATING CERTIFIED ISO 9001 Certified Quality Management System RESIDENTIAL GAS FURNACE WITH ECM MOTOR MODELS: TP8C/TPLC*MP , YP8C/YPLC*MP , CP8C/CPLC*MP , LP8C/LPLC*MP (80% Modulating Multi-position / Low NOx) INSTALLATION MANUAL LIST OF SECTIONS SAFETY .
368262-UIM-B-1008 2 Johnson Controls Unitary Products SPECIFIC SAFETY RULES AND PRECAUTIONS 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.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 3 COMBUSTION AIR QU ALITY (LIST OF CONT AMINANTS) The furnace requires OUTDOO R AIR for combustion when the furnace is located in any of the following environments.
368262-UIM-B-1008 4 Johnson Controls Unitary Products INSPECTION As soon as a unit is received, it should be inspected for possible dam- age during transit. If damage is evident, the extent of the damage should be noted on the carrier ’s freight bill.
368262-UIM-B-1008 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.
368262-UIM-B-1008 6 Johnson Controls Unitary Products DOWNFL OW DUCT CONNECT ORS All downflow installations must us e a suitable duct connector approved by the furnace manufacturer for use with this furnace. The duct connec- tors are designed to be connected to the rectangular duct under the floor and sealed.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 7 All six suspension points must be level to ensure proper and quiet fur- nace operation. When suspe nding the furnace, use a secure platform constructed of plywood or other build ing materials secured to the floor or ceiling joists.
368262-UIM-B-1008 8 Johnson Controls Unitary Products FURNACE ASSEMBL Y - MC & FC SERIE S COILS These coils are factory shipped for installation in either upflow or down- flow applications with no conversion.
368262-UIM-B-1008 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.
368262-UIM-B-1008 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 filte r box.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 11 GAS CONVERSION FOR PROP 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 fac- tory-supplied LP conversi on kit which includes a LP gas valve.
368262-UIM-B-1008 12 Johnson Controls Unitary Products Annual Fuel Utilizat ion Efficiency (AFUE) numbers a re determined in accordance with DOE T est procedures. Wire size and over current protection must comply wi th t he National Electrical Code (NFP A-70-latest edition) and all local code s.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 13 For additional connection diagrams fo r all UPG equipment refer to “Low V oltage System Wiring” document available online at www .
368262-UIM-B-1008 14 Johnson Controls Unitary Products FIGURE 20: Thermostat Chart - T wo S tage Air Conditioner – V ariable S peed or PSC Modulatin g Furnace C 24 – Volt Comm on Y1 First Stage Co.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 15 FIGURE 21: Thermostat Chart - T wo S tage Air Conditioner with Single S t age Thermostat – V ariable S peed or PSC Modulating Furnace HM1 Humi.
368262-UIM-B-1008 16 Johnson Controls Unitary Products FIGURE 22: Thermostat Chart - Single S tage Heat Pump – V ariable S peed or PSC Modulating Furnace C 24 – Volt Common R 24 – Volt Hot Y1 First Stage Co mp ressor O Reversing Valve Energized in Cool L Malfunction Ligh t G Fan *DP32H70124 THERMOSTAT W1 Second St age Aux.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 17 FIGURE 23: Thermostat Chart - Single S tage Heat Pump – V ariable S peed or PSC Modulating Furnace C 24 – Volt Comm on R 24 – Volt Hot Y1 First Stage Comp ressor O Reversing Valve Energized in Cool L Malfunction Ligh t G Fan *DP32H70124 THERMOSTAT W1 Second St a ge Aux.
368262-UIM-B-1008 18 Johnson Controls Unitary Products FIGURE 24: Thermostat Chart - T wo S tage Heat Pump – V ariable S peed or PSC Modulating Furnace O Reversing Valve Energized in Co ol C 24 – .
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 19 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.
368262-UIM-B-1008 20 Johnson Controls Unitary Products F AN-ASSISTED COMBUSTION SY STEM This appliance is equipped with an integral mechanical means to draw products of combustion through the heat exchanger .
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 21 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.
368262-UIM-B-1008 22 Johnson Controls Unitary Products SECTION VII: S T ART -UP AND ADJUSTMENTS NOTE: In order that this furnace will operate properly , it is required that all of the startup procedures in this section be followed.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 23 SETUP TEST MODE During normal operation, the furnace input rate can vary bet ween 50% and 100% of full nameplate input, making it difficult to check for proper operation.
368262-UIM-B-1008 24 Johnson Controls Unitary Products T ab le 10: 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 .
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 25 ADJUSTMENT OF MANI FOLD GAS PRESSURE * The gas line pressure MUST BE • 7” W .C. (1.74 kP A) for Natural Gas • 1 1” W .
368262-UIM-B-1008 26 Johnson Controls Unitary Products ADJUSTMENT OF F AN CONTROL SETTINGS Cooling - The airflow delivered by the furnace during cooling operation can be adjusted to match the cooli ng capacity of the A/C condensing unit. This is done by moving the COOL and ADJ jumper on the control board to give the desired airflow.
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 27 All CFM’s ar e shown at 0.5” w .c. external static pressure.These un its have variable speed motors that automatically adjust to p rovide constant CFM from 0.0” to 0.6” w .c. st ati c pressure.
368262-UIM-B-1008 28 Johnson Controls Unitary Products Delay T aps Selection The set of jumper pins on the control board labeled "DELA Y" are used to set the delay profiles for the fu rnace. These can be chosen so as to maximize the comfort and sound levels for various regions of the coun - try .
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 29 SECTION IX: NORMAL OPERA TION AND DIAGNO STICS NORMAL OPERA TION SEQUENCE The furnace control calculates the optimum firing rate each time the w.
368262-UIM-B-1008 30 Johnson Controls Unitary Products DIAGNOSTIC F AUL 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 .
368262-UIM-B-1008 Johnson Controls Unitary Produ cts 31 SECTION XI: WI RING DIAGRAM FIGURE 30: Wiring Diagram.
Subject to change without notice. Printed in U.S.A. 368262-UIM-B-1008 Copyright © 2008 by Johnson Controls, Inc. All rights reserved. Supersedes: 368262-UIM-A-0508 Johnson Contro ls Unitary Produc t .
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