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Step 8—Electrical Connections

See Fig. 31, 32, and 50A-H for field wiring diagram showing
typical field 115-v and 24-v wiring. Check all factory and field
electrical connections for tightness.

ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Blower access door switch opens 115-v power to furnace
control. No component operation can occur. Do not bypass or
close switch with panel removed.

Field-supplied wiring shall conform with the limitations of 63°F
rise.

UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent unit
operation.
Furnace control must be grounded for proper operation or
control

will

lock

out.

Control

is

grounded

through

green/yellow wire routed to gas valve C-terminal and burner
box screw.

115-V WIRING

Before proceeding with electrical connections, make certain that
voltage, frequency, and phase correspond to that specified on the
furnace rating plate. Also, check to be sure that service provided
by power supply is sufficient to handle load imposed by this
equipment. Refer to rating plate or Table 6 for equipment electrical
specifications.

The furnace must be electrically grounded in accordance with local
codes; or in the absence of local codes, with the National Electric
Code ANSI/NFPA 70 and/or the Canadian Electric Code, CSA
C22.1, Part I, if an external electrical source is utilized.

Table 6—Electrical Data

UNIT

SIZE

VOLTS—
HERTZ—

PHASE

OPERATING

VOLTAGE RANGE

MAX

UNIT

AMPS

UNIT

AMPACITY†

MIN

WIRE

SIZE

MAX WIRE

LENGTH

(FT)‡

MAX FUSE

OR CKT BKR

AMPS**

Max*

Min*

060–12

115-60-1

127

104

8.4

11.3

14

33

15

080–12

115-60-1

127

104

8.1

10.8

14

34

15

080–16

115-60-1

127

104

11.6

15.3

12

37

20

100–16

115-60-1

127

104

11.6

15.4

12

37

20

100–20

115-60-1

127

104

13.3

17.5

12

33

20

120–20

115-60-1

127

104

12.9

16.8

12

34

20

* Permissible limits of voltage range at which unit will operate satisfactorily.
† Unit ampacity = 125 percent of largest operating component’s full load amps plus 100 percent of all other potential operating components’ (EAC, humidifier, etc.) full
load amps.
‡ Length shown is measured 1 way along wire path between unit and service panel for maximum 2 percent voltage drop.
** Time-delay type is recommended.

Fig. 30—Typical Gas Pipe Arrangement

COMBUSTION-AIR PIPE GROMMETS

GAS LINE GROMMET

GAS LINE

COMBUSTION
-AIR PIPE

VENT PIPE

VENT PIPE GROMMET

UNUSED 1/2 -IN.
DIAMETER GAS
CONN. HOLE

GAS LINE ENTRY
HOLE FILLER PLUG

NOTE: PIPE GROMMETS AND ENTRY HOLE FILLER
PLUGS ARE INCLUDED IN FACTORY-SUPPLIED
LOOSE PARTS BAG

A05057

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Содержание 58MTB

Страница 1: ...ns 19 Installation in Horizontal Applications 19 Air Ducts 19 General Requirements 19 Ductwork Acoustical Treatment 21 Supply Air Connections 21 Return Air Connections 21 Filter Arrangement 21 Bottom Closure Panel 23 Gas Piping 24 Electrical Connections 25 115 V Wiring 25 24 V Wiring 27 Accessories 27 Removal of Existing Furnaces from Common Vent Systems 28 Combustion Air and Vent Pipe Systems 28 ...

Страница 2: ...ls be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor pers...

Страница 3: ...rating plate and the firing rate has been set to the nameplate value The filters used to clean the circulating air during the construc tion process must be either changed or thoroughly cleaned prior to occupancy The furnace ductwork and filters are cleaned as necessary to remove drywall dust and construction debris from all HVAC system components after construction is completed This furnace is shi...

Страница 4: ...ONTAL RIGHT OR ALTERNATE 1 2 IN DIA GAS CONN 2 IN COMBUSTION AIR CONN 1 2 IN DIA GAS CONN 7 8 IN DIA POWER CONN 1 2 IN DIA THERMOSTAT ENTRY 2 IN VENT CONN DIMPLE LOCATORS FOR HORIZONTAL HANGING 14 1 2 TYP SIDE INLET NOTES 1 Minimum return air openings at furnace based on metal duct If flex duct is used see flex duct manufacturer s recommendations for equivalent diameters 2 Minimum return air openi...

Страница 5: ...allations Cette fournaise est approuvée pour l installation HORIZONTALE et la circulation d air VERS LE HAUT et VERS LE BAS BOTTOM DESSOUS 0 Ø 3 0 0 TOP PLENUM DESSUS CHAMBRE D AIR 1 0 24 MIN ALL POSITIONS DOWNFLOW POSITIONS I HORIZONTAL POSITIONS S I DE C O T E S F R O N T A V A N T B C K A R R I E A E R S E R VI E C LÈNTR T E N E I V A N A T FRONT S I DE C O T E S F OU U F RNA C S E E I A RN Les...

Страница 6: ...nsate trap when a condensing furnace is used in an attic application or over a finished ceiling Step 1 General Some assembly and modifications are required for furnaces installed in any of the 4 applications shown in Fig 1 All drain and pressure tubes are connected as shown in Fig 6 See appropriate application instructions for these procedures Step 2 Upflow Applications In an upflow application th...

Страница 7: ...t combustion products being drawn in from appliances in the equipment room 4 Install condensate trap into left hand side casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap into locking position 5 Fill unused condensate trap casing holes with plastic filler caps factory supplied in loose parts bag CONDENSATE TRAP TUBING ALTERNATE UPFLOW ORIENTATION NOTE ...

Страница 8: ... proper connections Upper Inducer Housing Drain Connection Attached to the UPPER unused inducer housing drain connection is a cap and clamp This cap is used to prevent condensate leakage in this application Ensure this connection is capped NOTE See Fig 6 or 7 or tube routing label on main furnace door to check for proper connections CONDENSATE TRAP FREEZE PROTECTION Refer to Condensate Drain Prote...

Страница 9: ...llector box drain tube blue and white striped label to condensate trap Tube does not need to be cut b Clamp tube to prevent any condensate leakage 2 Condensate Trap Located on Right Side of Casing a Install drain tube coupling factory supplied in loose parts bag into collector box drain tube blue and white striped label which was previ ously plugged b Connect larger diameter drain tube factory sup...

Страница 10: ...l to condensate trap relief port connection 6 Determine appropriate length cut and connect tube 7 Clamp tube to relief port connection CONDENSATE TRAP FREEZE PROTECTION Refer to Condensate Drain Protection section for recommenda tions and procedures Step 4 Horizontal Left Supply Air Discharge Applications In a horizontal left furnace application the blower is located to the right of the burner sec...

Страница 11: ... cut and reconnect tube to High Pressure Switch connection labeled COLLECTOR BOX CONDENSATE TRAP FREEZE PROTECTION Refer to Condensate Drain Protection section for recommenda tions and procedures CONSTRUCT A WORKING PLATFORM Construct working platform where all required furnace clearances are met See Fig 3 and 11 or 12 UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent ...

Страница 12: ...tion products being drawn in from appliances in the equipment room 4 Install condensate trap into right hand side casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap into locking position 5 Fill unused condensate trap casing holes with plastic filler caps factory supplied in loose parts bag CONDENSATE TRAP TUBING NOTE See Fig 13 or tube routing label on ...

Страница 13: ...nections Relocate tubes as described below 1 Disconnect collector box pressure tube pink label attached to High Pressure Switch 2 Extend collector box pressure tube green label which was previously connected to condensate trap relief port connection by splicing to small diameter tube factory supplied in loose parts bag 3 Connect collector box pressure tube green label to High Pressure Switch conne...

Страница 14: ...or servicing and cleaning Always comply with minimum fire protection clearances shown on the furnace clearance to combustibles label NOTE For upflow downflow applications install furnace so that it is level or pitched forward within 1 2 in for proper furnace operation For horizontal applications pitch 1 4 in minimum to 1 2 in maximum forward to ensure proper condensate drainage from secondary heat...

Страница 15: ...ify furnace operating conditions including ignition input rate temperature rise and venting according to the manufacturer s instructions UNIT DAMAGE HAZARD Failure to follow this caution may result in minor property or unit damage If this furnace is installed in an unconditioned space where the ambient temperatures may be 32 F or lower freeze protection measures must be taken See Fig 16 Step 2 Fur...

Страница 16: ...al must be made between the furnace cabinet and the return air duct to prevent pulling air from the burner area and from draft safeguard opening CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in peronal injury or death The operation of exhaust fans kitchen ventilation fans clothes dryers attic exhaust fans or fireplaces could create a NEGATIVE PRESSURE CONDITION at th...

Страница 17: ...the space Table 2 Minimum Space Volumes were determined by using the following equations from the National Fuel Gas Code ANSI Z223 1 2002 NFPA 54 2002 8 3 2 2 1 For other than fan assisted appliances such as a draft hood equipped water heater 2 For fan assisted appliances such as this furnace Table 1 Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors FURNACE INPUT BTUH ...

Страница 18: ...gs exposed to the outdoors have a continu ous sealed vapor barrier Openings are gasketed or sealed and b Doors and openable windows are weatherstripped and c Other openings are caulked or sealed These include joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines etc NOTE In determini...

Страница 19: ...ig 23 NOTE Remove furnace perforated supply air duct flanges when they interfere with mating flanges on coil or downflow subbase To remove perforated supply air duct flanges use wide duct pliers duct flange tool or hand seamers to bend flange back and forth until it breaks off Be careful of sharp edges See Fig 24 UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit o...

Страница 20: ...plications on Combustible Flooring NOT Using KGASB Subbase Furnace with CD5 or CK5 Coil Assembly or KCAKC Coil Box 19 19 20 20 24 1 2 Upflow Applications 23 24 1 8 23 5 8 24 3 4 Downflow Applications on Non Combustible Flooring 22 7 8 19 23 1 2 19 5 8 Downflow Applications on Combustible Flooring Using KGASB Subbase Furnace with or without CD5 or CK5 Coil Assembly or KCAKC Coil Box 22 1 8 19 23 3 ...

Страница 21: ...When installed on combus tible material supply air duct attachment must ONLY be con nected to an accessory subbase or factory approved air condition ing coil casing DO NOT cut main furnace casing to attach supply side air duct humidifier or other accessories All accessories MUST be connected external to furnace main casing Supply air opening duct flanges must be modified per Fig 24 Horizontal Furn...

Страница 22: ...IN MAX ALTERNATE SUPPORT LOCATION FROM BACK ALTERNATE SUPPORT LOCATION 4 IN MIN 8 IN MAX 3 8 IN ROD A B A B B A 1 A 1 In clearance minimum between top of furnace and combustible material 2 The entire length of furnace must be supported when furnace is used in horizontal position to ensure proper drainage 3 For non direct vent 1 pipe application bottom side combustion air entry cannot be used when ...

Страница 23: ...ay need to be cut to fit some furnace widths Install filter as shown in Fig 27 NOTE Remove and discard bottom closure panel when bottom inlet is used Step 6 Bottom Closure Panel This furnace is shipped with bottom closure panel installed in bottom return air opening This panel MUST be in place when side return air is used To remove bottom closure panel perform the following 1 Tilt or raise furnace...

Страница 24: ...t use a connector which has previously served another gas appliance An accessible manual shutoff valve MUST be installed external to furnace casing and within 6 ft of furnace A 1 8 in NPT plugged tapping accessible for test gauge connection MUST be installed immediately upstream of gas supply connection to furnace and downstream of manual shutoff valve Piping should be pressure tested in accordanc...

Страница 25: ...ally grounded in accordance with local codes or in the absence of local codes with the National Electric Code ANSI NFPA 70 and or the Canadian Electric Code CSA C22 1 Part I if an external electrical source is utilized Table 6 Electrical Data UNIT SIZE VOLTS HERTZ PHASE OPERATING VOLTAGE RANGE MAX UNIT AMPS UNIT AMPACITY MIN WIRE SIZE MAX WIRE LENGTH FT MAX FUSE OR CKT BKR AMPS Max Min 060 12 115 ...

Страница 26: ...ny of the original wire as supplied must be replaced use same type or equivalent wire Fig 32 Typical Heating and Cooling Application Wiring Diagram 2 Stage Thermostat and Condensing Unit A99072 115 V FUSED DISCONNECT SWITCH WHEN REQUIRED JUNCTION BOX CONTROL BOX 24 V TERMINAL BLOCK THREE WIRE HEATING ONLY SEVEN WIRE 2 STAGE THERMOSTAT TERMINALS FIELD SUPPLIED FUSED DISCONNECT 2 SPEED CONDENSING UN...

Страница 27: ...ace select a location where a drill or fastener will not contact electrical or gas components 24 V WIRING Make field 24 v connections at 24 v terminal block on furnace See Fig 37 Connect terminal Y Y2 as shown in Fig 31 and 32 for proper cooling operation Use only AWG No 18 color coded copper thermostat wire for lengths up to 100 ft For wire lengths over 100 ft use AWG No 16 wire The 24 v circuit ...

Страница 28: ...her appliances connected to the venting system are not in operation 1 Seal any unused openings in venting system 2 Inspect the venting system for proper size and horizontal pitch as required in the National Fuel Gas Code ANSI Z223 1 2002 NFPA 54 2002 or the CSA B149 1 Natural Gas and Propane Installation Code and these instructions Determine that there is no blockage or restriction leakage corrosi...

Страница 29: ... EMITTING DIODE FOR STATUS CODES AMBER LGPS LOW GAS PRESSURE SWITCH SPST N O LPS LOW HEAT PRESSURE SWITCH SPST N O LS LIMIT SWITCH AUTO RESET SPST N C OL AUTO RESET INTERNAL MOTOR OVERLOAD TEMPERATURE SWITCH N C PCB PRINTED CIRCUIT BOARD CONTROL PL1 12 CIRCUIT PCB CONNECTOR PL2 3 CIRCUIT PCB HSI IDM CONNECTOR PL3 6 CIRCUIT ICM MOTOR CONNECTOR NOT SHOWN PL4 4 CIRCUIT IDM CONNECTOR PL5 2 CIRCUIT HSI...

Страница 30: ...onal Fuel Gas Code and the vent or liner manufacturer s installation instructions Care must be taken to prevent the exhaust gases from one appliance from contaminating the combustion air of other gas appliances UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation When vent pipe is exposed to temperatures below freezing such as when it passes through an unhe...

Страница 31: ...meter and use it for both combustion and vent pipe NOTE Do not count elbows or pipe sections in terminations or within furnace All elblows shown in Fig 44 and Fig 45 are not to be counted UNIT MAY NOT OPERATE Failure to follow this caution may result in incomplete combusiton flame disturbance or flame sense lockout When installing combusiton air and vent system of short pipe length the smallest al...

Страница 32: ...Table 8 Direct Vent Termination Clearance A05009 32 ...

Страница 33: ... Table 9 Other than Direct Vent Termination Clearance A05013 33 ...

Страница 34: ... be routed to open condensate drain for furnace and A C if used and should be trapped as shown in Fig 42 NOTE Direct Vent 2 Pipe System ONLY Moisture in com bustion air intake may be a result of improper termination Ensure combustion air pipe termination is similar to those as shown in Fig 44 so that it will not be susceptible to area where light snow or others sources of moisture could be pulled ...

Страница 35: ... sags between hangers Fig 38 Combustion Air and Vent Pipe Connections A05092 COMBUSTION AIR COMBUSTION AIR AIR FLOW VENT VENT VENT AIR FLOW AIR FLOW AIR FLOW UPFLOW DOWNFLOW HORIZONTAL LEFT DISCHARGE HORIZONTAL RIGHT DISCHARGE Select 1 vent pipe connection and 1 combustion air pipe connection COMBUSTION AIR COMBUSTION AIR COMBUSTION AIR COMBUSTION AIR VENT VENT VENT NOTE Select 1 vent pipe connect...

Страница 36: ...OWS TERMINATION TYPE PIPE DIA IN PIPE DIA IN 1 2 3 4 5 6 0 to 2000 60 000 2 Pipe or 2 in Concentric 1 1 2 1 1 2 20 15 10 5 NA NA 2 2 70 70 70 70 70 70 80 000 2 Pipe or 2 in Concentric 1 1 2 1 1 2 10 NA NA NA NA NA 2 2 55 50 35 30 30 20 2 1 2 2 1 2 70 70 70 70 70 70 100 000 2 Pipe or 3 in Concentric 2 2 5 NA NA NA NA NA 2 1 2 2 1 2 40 30 20 20 10 NA 3 3 70 70 70 70 70 70 120 000 2 Pipe or 3 in Conc...

Страница 37: ... PIPE ONLY NON DIRECT VENT 1 PIPE ONLY NUMBER OF 90 ELBOWS TERMINATION TYPE PIPE DIA IN PIPE DIA IN 1 2 3 4 5 6 4001 to 5000 60 000 2 Pipe or 2 in Concentric 1 1 2 1 1 2 15 10 5 NA NA NA 2 2 64 59 58 53 52 52 80 000 2 Pipe or 2 in Concentric 2 2 44 39 26 21 20 11 2 1 2 2 1 2 70 70 70 70 70 70 100 000 2 Pipe or 3 in Concentric 2 1 2 2 1 2 31 22 13 12 NA NA 3 3 70 70 67 62 57 52 120 000 2 Pipe or 3 ...

Страница 38: ...PIPE DIA IN 1 2 3 4 5 6 9001 to 10 000 60 000 2 Pipe or 2 in Concentric 2 2 45 40 38 33 31 29 80 000 2 Pipe or 2 in Concentric 2 2 30 25 14 9 7 NA 2 1 2 2 1 2 57 55 53 51 49 47 100 000 2 Pipe or 3 in Concentric 2 1 2 2 1 2 21 13 5 NA NA NA 3 3 54 49 44 39 34 29 120 000 2 Pipe or 3 in Concentric NA 3 39 37 35 33 31 29 4 no disk 4 no disk 10 5 NA NA NA NA Disk usage Unless otherwise specified use pe...

Страница 39: ...s required If same applications are to be installed at 5001 to 6000 ft elevation For a direct vent 2 pipe system 2 in pipe is only good for 23 ft with 3 elbows and 17 ft with 5 elbows Therefore 2 1 2 in diameter combustion air and vent pipe must be used For a non direct vent 1 pipe system a 2 in diameter pipe is only good for 23 ft with 3 elbows A 2 1 2 in diameter vent pipe must be used VENT TERM...

Страница 40: ... Sidewall Pipes Sidewall combustion air pipe termination direct vent 2 pipe system only and vent pipe termination may be extended beyond area shown in Fig 44 or in Fig 45 per application in outside ambient by insulating pipe as indicated in Table 10 1 Determine combustion air pipe diameter direct vent 2 pipe system only and vent pipe diameter as stated above using total pipe length and number of e...

Страница 41: ...bottom of combustion air and bottom of vent Maintain 12 in min clearance above highest anticipated snow level or grade whichever is greater A At least 36 in A Maintain 12 in min clearance above highest anticipated snow level Maximum of 24 in above roof 90 Note A denotes 0 to 2 in Fig 45 Vent Pipe Termination for Non Direct Vent 1 pipe System Sizes 040 Through 120 Only A05091 Abandoned masonry used...

Страница 42: ...ast 36 in away from first 2 terminations It is important that vent terminations be made as shown in Fig 44 to avoid recirculation of flue gases Step 11 Condensate Drain UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation Unit must not be installed operated and then turned off and left in an unoccupied structure during cold weather when temperature drops to...

Страница 43: ...for 115 v wiring If polarity is incorrect control status indicator light will flash rapidly and the furnace will not operate Natural gas service pressure must not exceed 0 5 psig 14 in wc and be no less than 0 16 psig 4 5 in wc Thermostat wire connections at R and W W1 are the minimum required for gas heating operation W2 must be connected for 2 stage heating thermostats COM Y Y2 and G are require...

Страница 44: ...ain connection cap and clamp Step 3 Purge Gas Lines After all connections have been made purge the gas lines and check for leaks FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in a fire explosion personal injury or death Never purge a gas line into a combustion chamber Never test for gas leaks with an open flame Use a commercially available soap solution made specifically fo...

Страница 45: ...as valve GV M open If the burner flame is not proved within two seconds the control CPU will close the gas valve GV M and the control CPU will repeat the ignition sequence for up to three more Trials For Ignition before going to Ignition Lockout Lockout will be reset automatically after three hours by momentarily interrupting 115 vac power to the furnace or by interrupting 24 vac power at SEC1 or ...

Страница 46: ... unit on low cooling speed and the R to G and Y1 circuits starts the furnace blower motor BLWM at low cool speed same speed as LO HEAT If the furnace control CPU switches from low cooling to high cooling the furnace control CPU will energize the air conditioning relay ACR When the air conditioning relay ACR is energized the R to Y1 and Y2 circuits switch the outdoor unit to high cooling speed and ...

Страница 47: ...th Single Speed Air Conditioner Fig 50B Two Stage Furnace with Two Speed Air Conditioner A00276 A00277 Fig 50C Two Stage Furnace with Single Speed Heat Pump Dual Fuel A00278 Fig 50D Two Stage Furnace with Two Speed Heat Pump Dual Fuel 47 ...

Страница 48: ... Heat Pump A00281 Fig 50G Two Stage Thermostat With Two Stage Furnace and Two Speed Air Conditioner A00280 Fig 50F Dual Fuel Thermostat With Two Stage Furnace and Two Speed Heat Pump A00282 Fig 50H Single Stage Thermostat With Two Stage Furnace and Two Speed Air Conditioner 48 ...

Страница 49: ...applications 10 NO connection should be made to the furnace HUM terminal when using a Thermidistat 11 Optional connection If wire is connected dip switch No 1 on furnace control should be set in ON position to allow Thermidistat Thermostat to control furnace staging 12 Optional connection If wire is connected ACRDJ jumper on furnace control should be removed to allow Thermidistat Thermostat to con...

Страница 50: ... HEAT and begin a low heat cycle The blower motor BLWM will remain on until the end of the prepurge period then shut off for 24 seconds then come back on at LO HEAT speed When the W W1 input signal disappears the furnace control begins a normal inducer post purge period and the blower remains running at LO HEAT speed If the R to W W1 and Y1 and G signals disappear at the same time the blower motor...

Страница 51: ...ERIFY 2 Adjust Manifold Pressure To Obtain Input Rate a Remove burner enclosure front NOTE Manifold pressure MUST always be measured with burner enclosure front REMOVED b Remove regulator seal caps that conceal adjustment screws for low and high heat gas valve pressure regulators See Fig 51 c Move setup switch SW 1 on control center to ON position This keeps furnace locked in low heat operation d ...

Страница 52: ...rate 775 43 3 8 1 6 42 3 2 1 4 42 3 3 1 4 42 3 4 1 4 42 3 5 1 5 800 43 3 5 1 5 43 3 7 1 5 43 3 8 1 6 42 3 2 1 4 42 3 3 1 4 825 44 3 8 1 6 43 3 4 1 5 43 3 6 1 5 43 3 7 1 5 43 3 8 1 6 850 44 3 6 1 5 44 3 7 1 6 44 3 8 1 6 43 3 5 1 5 43 3 6 1 5 875 44 3 4 1 4 44 3 5 1 5 44 3 6 1 5 44 3 7 1 6 43 3 4 1 4 900 44 3 2 1 4 44 3 3 1 4 44 3 4 1 4 44 3 5 1 5 44 3 6 1 5 925 45 3 7 1 5 45 3 8 1 6 44 3 2 1 4 44 3...

Страница 53: ... 1 5 43 3 6 1 5 43 3 7 1 6 43 3 8 1 6 750 44 3 6 1 5 44 3 7 1 6 43 3 4 1 4 43 3 5 1 5 43 3 6 1 5 775 44 3 4 1 4 44 3 5 1 5 44 3 6 1 5 44 3 7 1 6 43 3 4 1 4 800 44 3 2 1 3 44 3 3 1 5 44 3 4 1 4 44 3 5 1 5 44 3 6 1 5 825 45 3 6 1 5 45 3 7 1 6 44 3 2 1 4 44 3 3 1 4 44 3 4 1 4 850 45 3 4 1 4 45 3 5 1 5 45 3 6 1 5 45 3 8 1 6 44 3 2 1 4 875 45 3 2 1 4 45 3 3 1 4 45 3 4 1 5 45 3 6 1 5 45 3 7 1 5 900 47 3...

Страница 54: ...Orifice no Manifold Pressure U S A Only Altitudes 8001 to 9000 17 derate 600 43 3 8 1 6 42 3 3 1 4 42 3 4 1 4 42 3 5 1 5 42 3 6 1 5 625 43 3 5 1 5 43 3 6 1 5 43 3 8 1 6 42 3 2 1 4 42 3 3 1 4 650 44 3 7 1 6 43 3 4 1 4 43 3 5 1 5 43 3 6 1 5 43 3 7 1 6 675 44 3 5 1 5 44 3 6 1 5 44 3 7 1 6 44 3 8 1 6 43 3 4 1 5 700 44 3 2 1 4 44 3 3 1 4 44 3 4 1 5 44 3 6 1 5 44 3 7 1 6 725 45 3 6 1 5 45 3 8 1 6 44 3 2...

Страница 55: ...r 3 minutes in low heat operation j Measure time in sec for gas meter to complete 1 revolu tion Note reading k Refer to Table 16 for cubic ft of gas per hr l Multiply gas rate cu ft hr by heating value Btu cu ft m Move setup switch SW 1 to OFF position and jumper R and W1 and W2 thermostat connections This keeps furnace locked in high heat operation Repeat items i through l for high heat operation...

Страница 56: ...ese motors c Med Low Blue Do NOT use for HI GAS HEAT on 80K 120K Btuh input models Factory setting for 4 speed motors UNIT DAMAGE HAZARD Failure to follow this caution may result in damage to the heat exchangers due to over temperature or condensate corrosion 1 NEVER connect Low Speed Red wire to HI HEAT 2 Do NOT connect Medium Low Speed Blue wire to HI HEAT on 80 000 Btuh and 120 000 Btuh input m...

Страница 57: ...s per hour Step 6 Check Safety Controls This section covers the safety controls that must be checked before the installation is complete The flame sensor gas valve and pressure switch were all checked in the Start up procedure section as part of normal operation 1 Check Primary Limit Control This control shuts off gas control system and energizes air circulating blower motor if furnace overheats R...

Страница 58: ...mostat type SW 1 and blower OFF delay SW 2 and SW 3 3 Verify flame rollout manual reset switch has continuity 4 Verify that blower and outer doors are properly installed 5 Cycle test furnace with room thermostat 6 Check operation of accessories per manufacturer s instruc tions 7 Review User s Guide with owner 8 Leave literature packet near furnace 58 ...

Страница 59: ...________ Pipe Sloped To Furnace Pipe Insulation ________ Over Ceilings ________ Low Ambient Exposed Pipes Condensate Drain ________ Unit Level or Pitched Forward ________ Internal Tubing Connections Free of Kinks and Traps ________ External Drain Connection Leak Tight and Sloped ________ Condensate Trap Primed before Start Up ________ Heat Tape Installed if Required CHECKLIST START UP ________ Gas...

Страница 60: ..._____ External Drain Connection Leak Tight and Sloped ________ Condensate Trap Primed before Start Up ________ Heat Tape Installed if Required CHECKLIST START UP ________ Gas Input Rate Set Within 2 percent of Rating Plate ________ Temperature Rise Adjusted Thermostat Anticipator ________ Anticipator Setting Adjusted or ________ Cycle Rate 3 Cycles per Hr Selected Safety Controls Check Operation _...

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