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44

SETTING INPUT RATE

The furnace is shipped from the factory with #42 orifices.
They are sized for natural gas having a heating value of
1050 BTU/cu. ft. and a specific gravity of .60.

Since heating values vary geo-graphically, the manifold
pressure and/or gas orifice size may need to be changed
to adjust the furnace to its nameplate input. Consult the
local gas utility to obtain the yearly average heating value

and orifice size required to fire each individual burner at
25,000 BTU/HR.

NOTE:

Refer to the High Altitude Section of this manual

and the National Fuel Gas Code for high altitude rate ad-
justment above 2,000 ft.

TABLE 11

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TIMING DIAGRAM, FIELD SELECTIONS &
ADJUSTMENTS

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Содержание 801P SERIES

Страница 1: ...D 801P UPFLOW HORIZONTAL SERIES U L and or C S A recognized fuel gas and CO carbon monoxide detectors are rec ommended in all applications and their installation should be in accordance with the manuf...

Страница 2: ...Air Cleaner 30 Humidifier 30 Filter 30 RXGW B01 Chimney Adapter 30 11 TWINNING 32 Furnace Twinning Installations 32 Control Boards 33 34 12 HIGH ALTITUDE 35 Natural Gas at High Altitudes 35 LP Gas at...

Страница 3: ...umber is correct open the carton and verify that the furnace rating label specifies the same furnace model number that is speci fied on the carton label If the model numbers do not match re turn the f...

Страница 4: ...hese publications are ANSI NFPA No 70 Latest Edition National Electrical Code NFPA90A Installation of Air Conditioning and Ventilating Sys tems NFPA90B Installation of warm air heating and air conditi...

Страница 5: ...erature rise in heat record air temperature rise ______ Air temperature rise in cool record air temperature rise VENTING ______ Correct vent pipe diameter and length according to NFGC tables _________...

Страница 6: ...IF THE FURNACE IS A MULTI STAGE FURNACE WARNING USE ONLY WITH THE TYPE OF GAS APPROVED FOR THIS FURNACE REFER TO THE FURNACE RATING PLATE WARNING NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME USE A COMM...

Страница 7: ...AS ALL JOINTS SEAMS AND OPENINGS IN THE EQUIPMENT AND DUCT MUST BE SEALED TO LIMIT THE MIGRATION OF TOXIC FUMES AND ODORS IN CLUDING CARBON MONOXIDE FROM MIGRATING INTO THE LIVING SPACE IF AIR MOVING...

Страница 8: ...SITE SELECTION 1 Select a site in the building near the center of the pro posed or existing duct system 2 Give consideration to the vent system piping when se lecting the furnace location Be sure the...

Страница 9: ...PLACEMENT OF COMBUSTIBLE MATERIALS ON AGAINST OR AROUND THE FURNACE JACKET CAN CAUSE AN EXPLOSION OR FIRE RESULTING IN PROP ERTY DAMAGE PERSONAL INJURY OR DEATH THE HOMEOWNER SHOULD BE CAUTIONED THAT...

Страница 10: ...REQUIRE 3 TO 4 OR 3 TO 5 ADAPTER 4 ADAPTER INCLUDED WITH 801P UNITS MAY BE 0 WITH TYPE B VENT MAY BE 1 WITH TYPE B VENT LEFT SIDE REDUCED CLEARANCE IN SHIP WGTS FIGURE 4 UPFLOW HORIZONTAL DIMENSIONS L...

Страница 11: ...Where the maximum airflow is 1800 CFM or more BOTH sides or the bottom must be used for the return air Do not take return air from the back of the unit NOTE DO NOT take return air from furnace rooms g...

Страница 12: ...M FLANGES OF CABINET BEFORE THE UNIT IS INSTALLED LIFT UP PULL OUT 1 REMOVE 2 SCREWS LIFT BASE UP SLIDE FORWARD TO REMOVE 2 INSTALLATION IS REVERSE OF REMOVAL VERIFY REAR FLANGE IS SEALED PROPERLY AS...

Страница 13: ...stion gases from an adjacent fuel burning appliance NOTE Do not block furnace access with support rods Main tain clearances recommended in Figure 8 Allow enough space for proper service maintenance or...

Страница 14: ...of all appliances in the space If the open space contain ing the appliances is in a building with tight construction contem porary construction outside air may still be required for the appliances to...

Страница 15: ...inch of free area for each 1 000 BTUH of total input in the space Table 2 shows some typical examples of openings required for com bustion air openings required for a confined space B USING OUTDOOR AI...

Страница 16: ...EN TWO OPENINGS ARE USED WITH A FURNACE 1 LOCATED IN A CONFINED SPACE 2 USING OUTDOOR AIR FOR COMBUSTION 3 COMMUNICATING DIRECTLY TO THE 3 OUTSIDE THROUGH AN OPENING OR 3 THROUGH A VERTICAL DUCT 16 Co...

Страница 17: ...OT A REQUIREMENT SEE PREVIOUS PAGE SINGLE ELBOW IS ALLOWED BUT MAY NOT PREVENT DEBRIS FROM BEING DROPPED INTO THE FURNACE GROUND OR SHELF SURFACE 6 MIN 6 MININUM CLEARANCE PVC DOUBLE ELBOW 8 SCREWS ME...

Страница 18: ...attic must be ventilated by gable or soffit vents COMBUSTION AIR FROM ATTIC If attic combustion air is used the inlet air opening at the furnace must be protected from accidental blockage Install a 9...

Страница 19: ...nstallation Code CSA B149 1 2 for proper installation practices NOTE Follow combustion air instructions as outlined in this man ual Single wall vent connectors to B 1 vent or masonry chimneys may be u...

Страница 20: ...s 16 and 17 5 Any angle greater than 45 degrees from the vertical is consid ered horizontal The total horizontal distance of a vent plus the horizontal vent connector serving draft hood equipped appli...

Страница 21: ...URE 17 FIGURE 18 DEDICATED VENTING THROUGH CHIMNEY WITH B 1 VENT FRESH AIR INLET ST A1220 09 X0 1 STANDARD 3 FLUE CONNECTION ALL MODELS 2 4 ADAPTER 801P MODELS ONLY SEE NATIONAL FUEL GAS CODE FOR SIZI...

Страница 22: ...venting system NOTE Ensure existing venting system complies with latest addi tion of National Fuel Gas Code ANSI Z223 1 and all local codes regulations 1 Visually inspect the venting system for prope...

Страница 23: ...N AIR AND TENDS TO COLLECT AT LOWER LEVELS MAKING IT MORE DIFFICULT TO SMELL AT NOSE LEVEL NATURAL GAS IS LIGHTER THAN AIR AND WILL RISE POSSIBLY ACCUMULATING IN HIGHER PORTIONS OF THE STRUCTURE IF A...

Страница 24: ...3 feet to easily remove the control valve assembly Install a manual shut off valve in the gas line outside the furnace cas ing The valve should be readily accessible to turn the gas supply on or off I...

Страница 25: ...RIFICES MAY OR MAY NOT NEED TO BE CHANGED SEE THE SECTION TITLED HIGH ALTITUDE INSTALLATIONS OF THIS BOOK FOR INSTRUCTIONS FIGURE 20 TYPICAL GAS VALVE HONEYWELL REGULATOR CAP WARNING NEVER PURGE A GAS...

Страница 26: ...remove any restrictions in the gas supply piping or enlarge the gas pipe See Tables 7 and 8 With LP gas have the LP supplier adjust the line pressure at the regulator Manifold Gas Pressure Measurement...

Страница 27: ...r and the gas supply to the furnace 2 Remove the burner door from the furnace 3 Remove the burner assembly handle with care 4 Remove the two screws attaching the NOx insert retainer bracket to the cen...

Страница 28: ...lly connected to line volt age prior to reversing the electrical connection 2 Disconnect the wires from the door switch 3 Remove the junction box from the furnace cabinet wall by re moving the two scr...

Страница 29: ...e sized as shown NOTE Do not use 24 volt control wiring smaller than No 18 AWG Install the room thermostat in accordance with the instruction sheet packed in the box with the thermostat Run the thermo...

Страница 30: ...the induced draft motor is ener gized NOTE Maximum current 1 0 amps for each option humidifier or electronic air cleaner FILTERS See Figure 25 Keep filters clean at all times A filter is not provided...

Страница 31: ...HE FURNCE AT THE LOCATIONS PROVIDED CUT OUT USING EMBOSSED ANGLES AS A GUIDE FOR PROPER SIZE 23 X 14 ST A1220 07 00 RXGF CB 6625 7 5 5 FIELD SUPPLIED FILTER ST A1220 06 X0 FIGURE 25 FILTER LOCATIONS A...

Страница 32: ...eating cooling or fan NOTE Duct system must be adequate to provide correct airflow to each furnace for supply and return UT ELECTRONIC CONTROLS 1194 200 CONTROL BOARD 62 104058 02 1 Single Stage Opera...

Страница 33: ...ILL FLASH TO INDICATE A TWINNING PROBLEM CONFIRM PROPER WIRING IF THIS FAULT IS PRESENT TWINNING CONTROL BOARDS FIGURE 26 UT ELECTRONIC CONTROLS 1194 200 CONTROL BOARD TWINNING CONNECTION SINGLE STAGE...

Страница 34: ...34 R Y G W2 W1 COOLING CONTACTOR FIGURE 27 UT ELECTRONIC CONTROLS 1194 200 CONTROL BOARD TWINNING CONNECTION TWO STAGE OPERATION TWINNING CONTROL BOARDS cont THERMOSTAT ST A1194 25 2 STAGE Twinning...

Страница 35: ...Sea Level Heating Value 1050 Q 23 81 ft3 Natural Gas per hour From Table F 1 of Natural Fuel Gas Code Handbook 2002 3 5 w c column Orifice required at Sea Level 43 From Table F 4 of National Fuel Gas...

Страница 36: ...90 FURNACE MODEL NATURAL GAS ORIFICE SELECTION BASED ON HEATING VALUE ELEVATION Table is derived from Appendix of the National Fuel Gas Code To determine the correct orifice for your installation con...

Страница 37: ...e LP orifices are based on an 11 of water column pressure at the orifice which dif fers from products that use 10 of water column at the orifice This difference requires a deviation from the NFGC orif...

Страница 38: ...gnition 4 The spark igniter is energized to light the gas burners and stays energized for the up to 7 seconds after the gas valve opens 5 8 seconds after the gas valve opens the remote flame sen sor m...

Страница 39: ...n has occurred four times in a row the control enters one hour lockout and fault codes 10 and 11 will be displayed alternately as described above 2 When flame is lost five times in a row the control e...

Страница 40: ...our period will commence after flame is no longer detected Dead Blower has been detected main limit circuit open for more than 150 seconds When voltage has unexpectedly been detected on the gas valve...

Страница 41: ...tting of the SW1 dipswitch is OFF The factory setting display orientation is with the control placed in a vertical orientation and the low volt age terminal block T2 is in the bottom position Heat Blo...

Страница 42: ...cleared from the fault buffer after one week The fault buffer can also be manually cleared if this is de sired For the first 30 seconds after a change in state of dip switch SW4 the furnace control wi...

Страница 43: ...er orifices To change orifice spuds shut off the manual gas valve and re move the gas manifold On LP gas furnaces the LP gas supply pressure must be set between 11 and 13 w c by means of the tank or b...

Страница 44: ...local gas utility to obtain the yearly average heating value and orifice size required to fire each individual burner at 25 000 BTU HR NOTE Refer to the High Altitude Section of this manual and the Na...

Страница 45: ...ge either the air flow is too much or the manifold pres sure needs to be adjusted Use lower speed tap on the multi speed blower IMPORTANT The measured temperature rise should be in the middle of the r...

Страница 46: ...ACE BEFORE ATTEMPTING TO CHANGE THE BLOWER SPEED FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL INJURY OR DEATH Low 823 803 787 732 718 691 651 593 Med Lo 1030 1018 1006 976...

Страница 47: ...be called to diagnose and or correct the source of tripping If this unit is mounted in a closet the door must be closed when making this check PRESSURE SWITCH This furnace is equipped with a normally...

Страница 48: ...nd through it to keep from overheating CAUTION DO NOT OPERATE THE SYSTEM FOR EXTENDED PE RIODS WITHOUT FILTERS A PORTION OF THE DUST ENTRAINED IN THE AIR MAY TEMPORARILY LODGE IN THE AIR DUCT RUNS AND...

Страница 49: ...replacement marking which can be obtained through the distributor if any are found to be illegible or missing REPLACEMENT PARTS Please visit www myrheem com myruud com for replace ment parts informati...

Страница 50: ...d range ROLLOUTS ensure rollouts or overtemperature limits do not need to be reset Make sure no flame rollout in burner compartment due to blocked flu or heat exchanger OVERFIRE ensure furnace is not...

Страница 51: ...51 Wiring Diagram FIGURE 32 FOR MODELS WITH UT ELECTRONIC CONTROLS 1028 928 INTEGRATED FURNACE CONTROL AND DIRECT SPARK IGNITION...

Страница 52: ...52 CM 0114...

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