Installation manual

ManualsBrandsYork ManualsFurnaceCP9C*C

531518-UIM-C-0110

EFFICIENCY

RATING

CERTIFIED

When paired with a

York heat pump

RESIDENTIAL GAS FURNACE

WITH ECM MOTOR

MODELS:

TP9C*C, YP9C*C, CP9C*C, LP9C*C

(Up to 98% Modulating Multi-position)

INSTALLATION MANUAL

LIST OF SECTIONS

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

CONDENSATE PIPING AND FURNACE

VENTING CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 22

COMBUSTION AIR and VENT SYSTEM . . . . . . . . . . . . . . . . . 28

START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . 34

SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

NORMAL OPERATION AND DIAGNOSTICS . . . . . . . . . . . . . 40

REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . 42

REPLACEMENT PART CONTACT INFORMATION . . . . . . . . 42

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

LIST OF FIGURES

Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Combustible Floor Base Accessory . . . . . . . . . . . . . . . . . . . . . . . 7

Horizontal Application (Typical) . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Typical Attic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Typical Suspended Furnace / Crawl Space Installation . . . . . . . 8

Downflow Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Vertical Applications (Typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Coil Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Horizontal Right Application (Typical) . . . . . . . . . . . . . . . . . . . . . 9

Horizontal Left Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

PC Series Upflow Coil Installation . . . . . . . . . . . . . . . . . . . . . . . . 9

Horizontal Left or Right application (Right Shown) . . . . . . . . . . . 9

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Side Return Cutout Markings . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Furnace Control Board – Communications Connections . . . . . 14

Modulating Furnace with Communicating AC or HP . . . . . . . . . 15

Modulating Furnace with Communicating Thermostat and

Non-Communicating AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Thermostat Chart - Single Stage Air Conditioner –

Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . 16

Thermostat Chart - Two Stage Air Conditioner –

Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . 17

Thermostat Chart - Two Stage Air Conditioner with Single

Stage Thermostat – Variable Speed Modulating Furnace . . . . . 18

Thermostat Chart - Single Stage Heat Pump –

Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . 19

Thermostat Chart - Single Stage Heat Pump –

Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . 20

Thermostat Chart - Two Stage Heat Pump –

Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . 21

Typical Condensate drain, vertical installation . . . . . . . . . . . . . 23

Typical Combustion Pipe Drain Tee . . . . . . . . . . . . . . . . . . . . . 23

Upflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Downflow Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Horizontal Left Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Horizontal Right Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 27

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Termination Configuration - 1 Pipe . . . . . . . . . . . . . . . . . . . . . . 31

Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . 31

Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . 31

Double Horizontal Combustion Air Intake

and Vent Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Double Vertical Combustion Air Intake

and Vent Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Direct Vent Air Intake Connection and Vent Connection . . . . . . 32

Combustion Airflow Path Through The Furnace Casing . . . . . . 32

Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . 33

Attic and Crawl Space Combustion Air Termination . . . . . . . . . 34

Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . 4

Coil Projection Dimensions - PC Series Coils . . . . . . . . . . . . . . . 9

Cabinet and Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Recommended Filter Sizes (High Velocity 600 FPM) . . . . . . . . 10

High Altitude Orifices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . 13

Maximum Equivalent Pipe Length . . . . . . . . . . . . . . . . . . . . . . . 28

Elbow Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Equivalent Length of Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Combustion Air Intake and Vent Connection

Size at Furnace (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Unconfined Space Minimum Area . . . . . . . . . . . . . . . . . . . . . . . 33

Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Gas Rate (CU FT/HR) at Full Input . . . . . . . . . . . . . . . . . . . . . . 36

Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Blower Performance CFM - Any Position . . . . . . . . . . . . . . . . . 39

Summary of content (44 pages)

PAGE 1
INSTALLATION MANUAL RESIDENTIAL GAS FURNACE WITH ECM MOTOR EFFICIENCY RATING CERTIFIED MODELS: TP9C*C, YP9C*C, CP9C*C, LP9C*C (Up to 98% Modulating Multi-position) When paired with a York heat pump LIST OF SECTIONS SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 GAS PIPING .
PAGE 2
531518-UIM-C-0110 The York YP9C is part of a "Hybrid Comfort System" when paired with a York Heat pump. These high efficiency, compact units employ induced combustion, reliable hot surface ignition and high heat transfer aluminized tubular heat exchangers. The units are factory shipped for installation in upflow or horizontal applications and may be converted for downflow applications.
PAGE 3
531518-UIM-C-0110 • • • • 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 electrical characteristics match. All models use nominal 115 VAC, 1 Phase, 60-Hz power supply. DO NOT CONNECT THIS APPLIANCE TO A 50-Hz POWER SUPPLY OR A VOLTAGE ABOVE 130 VOLTS. Furnace shall be installed so the electrical components are protected from water.
PAGE 4
531518-UIM-C-0110 For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied: Where it will not interfere with proper air circulation
PAGE 5
31518-UIM-C-0110 SECTION II: DUCTWORK DUCTWORK GENERAL INFORMATION The duct system’s design and installation must: 1. 2. 3. 4. Handle an air volume appropriate for the served space and within the operating parameters of the furnace specifications. Be installed in accordance of National Fire Protection Association as outlined in NFPA standard 90B (latest editions) or applicable national, provincial, state, and local fire and safety codes. Create a closed duct system.
PAGE 6
531518-UIM-C-0110 FURNACE WARM AIR PLENUM WITH 1” FLANGES Line contact only permissible between lines formed by the intersection of furnace top and two sides and building joists, studs or framing Filter rack must be a minimum distance of 18” (45.7 cm) from the furnace Supply Air Vent (Maintain required clearances to combustibles) Gas Piping FIBERGLASS INSULATION FIBERGLASS TAPE UNDER FLANGE 30” MIN.
PAGE 7
531518-UIM-C-0110 COIL INSTALLATION On all installations without a coil, a removable access panel is recommended in the outlet duct such that smoke or reflected light would be observable inside the casing to indicate the presence of leaks in the heat exchanger. This access cover shall be attached in such a manner as to prevent leaks.
PAGE 8
531518-UIM-C-0110 FURNACE ASSEMBLY - MC SERIES COILS ONLY MC coils are supplied ready to be installed in a horizontal position. A horizontal pan is factory installed. MC coils should be installed in all horizontal applications with the horizontal drain pan side down.
PAGE 9
531518-UIM-C-0110 LEFT SIDE RIGHT SIDE FRONT Combustion Air Inlet Condensate Drain (Downflow) Combustion Air Inlet Gas Pipe Entry 2” Vent Connection Outlet Gas Pipe Entry Electrical Entry Condensate Drain (Downflow) Electrical Entry Condensate Drain 33 Thermostat Wiring 2” Vent Connection Outlet 23” Condensate Drain Thermostat Wiring Optional Return Air Cutout (Either side) 14” 1” 28.5” 29.5” A 1.5” (For Cladded door add appoximately an additional .75”) .56” 23.
PAGE 10
531518-UIM-C-0110 Horizontal Filters Main Regulator Adjustment All filters and mounting provision must be field supplied. All installations must have a filter installed. Inlet Pressure Tap On/Off Switch Outlet Pressure Tap Any branch duct (rectangular or round 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.
PAGE 11
531518-UIM-C-0110 GAS CONVERSION FOR PROPANE (LP) This furnace is constructed at the factory for natural gas-fired operation, but may be converted to operate on propane (LP) gas by using a factory-supplied LP conversion kit. Follow the instructions supplied with the LP kit. HIGH ALTITUDE NATURAL GAS ORIFICE CONVERSION The National Fuel Gas Code requires that gas appliances installed above 2,000 feet elevation have their inputs de-rated by 4% per 1,000 feet above sea level.
PAGE 12
531518-UIM-C-0110 Table 6: Ratings & Physical / Electrical Data BTUH/ Cabinet/CFM Input Max/Min Output Max/Min Nominal Airflow Air Temp. Rise Max Input Air Temp. Rise Min Input MBH kW MBH kW CFM m3/min °F °C °F °C 60B12 60/21 17.6/6.2 58/20 17.0/5.9 1200 34.0 40-70 22-39 20-50 11-28 80B12 80/28 23.4/8.2 77/27 22.6/7.9 1200 34.0 40-70 22-39 20-50 11-28 80C16 80/28 23.4/8.2 78/27 22.8/7.9 1600 45.3 40-70 22-39 20-50 11-28 100C16 100/35 29.3/10.2 97/34 28.
PAGE 13
531518-UIM-C-0110 CONTROL WIRING This furnace can be connected to the wall thermostat and outdoor A/C or heat pump using either conventional low voltage (24 VAC) thermostat wiring OR using four-wire digital communications wiring. To use conventional low voltage wiring, see the section below entitled “Conventional Low Voltage Control Wiring”. To use four-wire communications control wiring, see the section below entitled “Control Wiring using Communicating Controls”.
PAGE 14
531518-UIM-C-0110 CONTROL WIRING USING COMMUNICATING CONTROLS Use the wiring diagram below to connect the furnace control, Communicating Control (wall thermostat) and communicating outdoor unit. Be sure that all of the “A” terminals are connected together, all of the “B” terminals are connected together, all of the “GND” or “C” terminals are connected together and all of the “R” terminals are connected together. See Figure 19. When using a fully communicating system, the large screw terminals (C, G, R, etc.
PAGE 15
531518-UIM-C-0110 For additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document available online at www.upgnet.com in the Product Catalog Section.
PAGE 16
531518-UIM-C-0110 ID MODELS TP9C THERMOSTAT THERMOSTAT *DN22U00124 *PP32U70124 YP9C CP9C LP9C TWO STAGE AIR CONDITIONER MODULATING FURNACE MODULATING FURNACE CONTROL 1 C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common Y1 First Stage Compressor Y1 First Stage Compressor Y1 Single Stage Compressor Y1 First Stage Compressor R 24 – Volt Hot (Heat XFMR) R 24 – Volt Hot (Heat XFMR) R 24 – Volt Hot R 24 – Volt Hot G Fan G Fan G Fan E/W1 First Stage Heat E/W1 Eme
PAGE 17
531518-UIM-C-0110 ID MODELS TP9C THERMOSTAT *PP11C70224 YP9C CP9C LP9C TWO STAGE AIR CONDITIONER MODULATING FURNACE MODULATING FURNACE CONTROL 1 C 24 – Volt Common C 24 – Volt Common Y Full Stage Compressor Y1 Single Stage Compressor Y1 First Stage Compressor RH 24 – Volt Hot (Heat XFMR) R 24 – Volt Hot R 24 – Volt Hot G Fan G Fan W Modulating Heat RC 24 – Volt Hot (Cool XFMR) Y/Y2 Second or Full Stage Compressor O Reversing Valve Energized in Cool LO COMP Single Stage Compressor (OUT) H
PAGE 18
531518-UIM-C-0110 ID MODELS THERMOSTAT THERMOSTAT THERMOSTAT *DN22U00124 *BP21H50124 *BN21H00124 *DP21H40124 *DN21H00124 *DP32H70124 E*R* YP9C CP9C E*ZD HP* E*B* *HGD *RHS LP9C MODULATING FURNACE MODULATING FURNACE CONTROL N/A OD MODELS TP9C SINGLE STAGE HEAT PUMP 2 DEMAND DEFROST CONTROL C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common Y1 First Stage Compressor Y1 Single Stage Compressor Y Compressor R 24 – Volt Hot R 24 – Volt Hot R 24 – Volt Hot G Fan G Fan E Em
PAGE 19
531518-UIM-C-0110 ID MODELS OD MODELS YZB YMB H*3 TP9C THERMOSTAT THERMOSTAT THERMOSTAT *DN22U00124 *BP21H50124 *BN21H00124 *DP21H40124 *DN21H00124 *DP32H70124 YP9C CP9C LP9C MODULATING FURNACE MODULATING FURNACE CONTROL SINGLE STAGE HEAT PUMP YORKGUARD VI CONTROL 2 C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common Y1 First Stage Compressor Y1 First Stage Compressor Y1 First Stage Compressor Y1 Single Stage Compressor Y1 Single Stage Compr
PAGE 20
531518-UIM-C-0110 ID MODELS THERMOSTAT THERMOSTAT *PP32U70124 *DN22H00124 *DP22U70124 OD MODELS TP9C YZE YP9C CP9C YZH LP9C H*8 H*5 MODULATING FURNACE MODULATING FURNACE CONTROL TWO STAGE HEAT PUMP YORKGUARD VI CONTROL 2 C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common C 24 – Volt Common Y First Stage Compressor Y1 First Stage Compressor Y1 Single Stage Compressor Y1 Single Stage Compressor R 24 – Volt Hot (Heat XFMR) R 24 – Volt Hot R 24 – Volt Hot R 24 – Volt Hot G F
PAGE 21
531518-UIM-C-0110 ACCESSORY CONNECTIONS TWINNING The furnace control will allow power-switching control of various accessories. These furnaces are not to be twinned. If more than one furnace is needed in an application, each furnace must have its own complete duct system and its own wall thermostat. ELECTRONIC AIR CLEANER CONNECTION Two 1/4” (6.4 mm) spade terminals (EAC and NEUTRAL) for electronic air cleaner connections are located on the control board. The terminals provide 115 VAC (1.
PAGE 22
531518-UIM-C-0110 Exhaust Pipe Combustion Air Pipe Tee with Drain Trap Trap Open Stand Pipe (Anti-siphon air vent) Connect to Drain 5” Min. Tee To Open Or Vented Drain FIGURE 28: Typical Combustion Pipe Drain Tee FIGURE 27: Typical Condensate drain, vertical installation CONDENSATE DRAIN TERMINATION The condensate will flow to the drain better if an open stand pipe is installed in the drain line. See Figure 27.
PAGE 23
Johnson Controls Unitary Products INDUCER ROTATED FOR LEFT SIDE VENTING Move rain gutter 1 hose to this position Shorten pressure switch hose 2 For 100, 120K input furnaces, the condensate drain is plumbed toward the left casing outlet from the factory. UPFLOW AS RECEIVED Condensate drain may exit cabinet on either side.
PAGE 24
DOWNFLOW - INDUCER ROTATED FOR LEFT SIDE VENTING AIRFLOW hose to this position (May exit either side of the cabinet) 4 Move condensate drain hose to this position 3 Move rain gutter hose to this position. NOTE: May require the longer hose that is provided with wider cabinets 2 Move pressure switch gutter hose to this position 1 Move rain DOWNFLOW - INDUCER ROTATED FOR RIGHT SIDE VENTING AIRFLOW When drain hose routing changes are required, be sure to cap all un-used openings.
PAGE 25
Johnson Controls Unitary Products 3 Move rain gutter hose to this position NOTE: May require hose extension that is provided with wider cabinets AIRFLOW 4 Move condensate drain hose to this position hose to this position 1 Move rain gutter to this position. NOTE: May require the longer hose that is provided with wider cabinets 2 Move pressure switch hose AIRFLOW HORIZONTAL - LEFT INDUCER ROTATED Move pressure switch hose to this position.
PAGE 26
1 connection to the 90° fitting provided 4 drain hose to this position 4 Move rain gutter hose to this position AIRFLOW AIRFLOW Move rain gutter hose to this position HORIZONTAL - RIGHT INDUCER ROTATED 3 Move condensate Move pressure switch hose to this position. 2 Change condensate drain HORIZONTAL - RIGHT INDUCER AS RECEIVED drain connection to the 90° fitting 3 Move condensate provided drain hose to this position 2 Change condensate switch hose to this position.
PAGE 27
531518-UIM-C-0110 SECTION VII: COMBUSTION AIR AND VENT SYSTEM COMBUSTION AIR AND VENT SAFETY This Category IV, dual certified direct vent furnace is designed for residential application. It may be installed without modification to the condensate system in a basement, garage, equipment room, alcove, attic or any other indoor location where all required clearance to combustibles and other restrictions are met. The combustion air and the venting system must be installed in accordance with Section 5.
PAGE 28
531518-UIM-C-0110 TABLE 9: Equivalent Length of Fittings Fitting Equivalent Length 2" 90º sweep elbow 5 feet of 2" pipe 2" 45º sweep elbow 2-1/2 feet of 2" pipe 2" 90º standard elbow 7 feet of 2" pipe 2" 45º standard elbow 3-1/2 feet of 2" pipe 3" 90º sweep elbow 5 feet of 3" pipe 3" 45º sweep elbow 2-1/2 feet of 3" pipe 3" 90º standard elbow 7 feet of 3" pipe 3" 45º standard elbow 3-1/2 feet of 3" pipe 2" corrugated connector 10 feet of 2" pipe 3" corrugated connector 10 feet of 3" pip
PAGE 29
531518-UIM-C-0110 VENT CLEARANCES G V A D V E FIXED CLOSED B I V C V V F VENT TERMINAL X AIR SUPPLY B B B L V V H V V B B M X J X V AREA WHERE TERMINAL IS NOT PERMITTED K FIXED CLOSED OPERABLE FIGURE 34: Home Layout Direct Vent Terminal Clearances Canadian Installations1,3 A. Clearance above grade, veranda, porch, deck, or 12” (30.5 cm) balcony B. Clearance to window or door that may be opened 12” (30.5 cm) for models 100,000 BTUH (30 kW), 36” (91.
PAGE 30
531518-UIM-C-0110 VENT SYSTEM This furnace is certified to be installed with one of two possible vent configurations. 1. 2. Horizontal vent system. This vent system can be installed completely horizontal or combinations of horizontal, vertical, or offset using elbows. Vertical vent system. This vent system can be installed completely vertical or a combination of horizontal, vertical, or offset using elbows. 12” MIN. 12” Minimum below overhang 12” MIN.
PAGE 31
531518-UIM-C-0110 COMBUSTION AIR SUPPLY Ambient Combustion Air Supply All installations must comply with Section 5.3, Air for Combustion and Ventilation of the National Fuel Gas Code, ANSI Z223.1 or Sections 7.2, 7.3 or 7.4 of CAN/CGA B149.1 or .2 Installation Code - latest editions. This type installation will draw the air required for combustion from within the space surrounding the appliance and from areas or rooms adjacent to the space surrounding the appliance.
PAGE 32
531518-UIM-C-0110 Dampers, Louvers and Grilles (Canada Only) 1. Table 12: Unconfined Space Minimum Area The free area of a supply air opening shall be calculated by subtracting the blockage area of all fixed louvers grilles or screens from the gross area of the opening. Apertures in a fixed louver, a grille, or screen shall have no dimension smaller than 1/4” (6.4 mm). A manually operated damper or manually adjustable louvers are not permitted for use.
PAGE 33
531518-UIM-C-0110 Ventilated Combustion Air Ventilated Combustion Air Termination The ventilated attic space or a crawl space from which the combustion air is taken must comply with the requirements specified in “AIR SOURCE FROM OUTDOORS” in this instruction or in Section 5.3, Air for Combustion and Ventilation of the National Fuel Gas Code, ANSI Z223.1 (latest edition). This type installation requires two properly sized pipes.
PAGE 34
531518-UIM-C-0110 When the gas supply is initially connected to the furnace, the gas piping may be full of air. In order to purge this air, it is recommended that the ground union be loosened until the odor of gas is detected. When gas is detected, immediately retighten the union and check for leaks. Allow five minutes for any gas to dissipate before continuing with the start-up procedure. Be sure proper ventilation is available to dilute and carry away any vented gas. GAS PIPING LEAK CHECK 5. 6. 7. 8.
PAGE 35
531518-UIM-C-0110 Table 14: Gas Rate (CU FT/HR) at Full Input Size of Test Dial Size of Test Dial Seconds For 1 Revolution 1 Cu Ft 2 Cu Ft 5 Cu Ft Seconds For 1 Revolution 1 Cu Ft 2 Cu Ft 10 360 720 1800 50 72 144 360 11 327 655 1636 51 71 141 355 5 Cu Ft 12 300 600 1500 52 69 138 346 13 277 555 1385 53 68 136 340 14 257 514 1286 54 67 133 333 15 240 480 1200 55 65 131 327 16 225 450 1125 56 64 129 321 17 212 424 1059 57 63 126 316 18
PAGE 36
531518-UIM-C-0110 ADJUSTMENT OF MANIFOLD GAS PRESSURE 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 44 for a drawing of the locations of the pressure ports on the gas valve. Table 15: Inlet Gas Pressure Range INLET GAS PRESSURE RANGE Natural Gas Propane (LP) Minimum* 4.5” w.c. (1.12 kPa) 8.0” w.c. (1.99 kPa) Maximum 10.5” w.c. (2.61 kPa) 13.0” w.c.
PAGE 37
531518-UIM-C-0110 ADJUSTMENT OF FAN CONTROL SETTINGS Cooling - The airflow delivered by the furnace during cooling operation can be adjusted to match the cooling 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. The COOL jumper has four positions, which will deliver the airflow in cooling mode shown in Table 17. The ADJ jumper has three positions which can be used to make further adjustments to the cooling blower airflow.
PAGE 38
531518-UIM-C-0110 Table 17: Blower Performance CFM - Any Position High / Low Speed Cooling CFM 060B12 080B12 Jumper Settings Hi Cool Lo Cool Hi Cool Lo Cool COOL Jumper ADJ Jumper 1305 850 1290 840 H B 1100 715 1090 710 MH B 1065 690 1015 660 H A 1000 650 1000 650 MH A 960 625 960 625 H C 760 495 760 495 ML B 900 585 900 585 MH C 660 430 660 430 L B 690 450 680 445 ML A 600 400 600 400 L A 620 400 620 400 ML C 550 400 540 400 L
PAGE 39
531518-UIM-C-0110 SECTION IX: SAFETY CONTROLS LIMIT CONTROLS CONTROL CIRCUIT FUSE Limit Switch - This furnace is equipped with a high temperature limit control mounted to the left side of the furnace vestibule panel.
PAGE 40
531518-UIM-C-0110 TROUBLESHOOTING The following visual checks should be made before troubleshooting: 1. Check to see that the power to the furnace and the ignition control module is ON. The manual shut-off valves in the gas line to the furnace must be open. Make sure all wiring connections are secure. Review the sequence of operation. Start the system by setting the thermostat above the room temperature. Observe the system’s response.
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531518-UIM-C-0110 SECTION XI: REPLACEMENT PARTS LIST DESCRIPTION DESCRIPTION MOTOR FABRICATED PARTS - Continued MOTOR, DIRECT DRIVE BLOWER MANIFOLD, GAS BLOWER, COMBUSTION PAN, BOTTOM ELECTRICAL PANEL, TOP CAPACITOR, RUN PANEL, DOOR (2 Req’d) SWITCH, LIMIT PANEL, BLOCKOFF MISCELLANEOUS CONTROL, FURNACE IGNITER ORIFICE, BURNER (Natural #45) SENSOR, FLAME SIGHT GLASS, OVAL (2 Req’d) SWITCH, PRESSURE GASKET, FOAM (Door) (1.
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531518-UIM-C-0110 SECTION XII: WIRING DIAGRAM FIGURE 46: Wiring Diagram 42 Johnson Controls Unitary Products
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531518-UIM-C-0110 NOTES Johnson Controls Unitary Products 43