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36

4. Turn ON gas to and relight all other appliances turned off in

step 1.  Be certain that all appliances are functioning properly
and that all pilot burners are operating.

T

EMPERATURE

 R

ISE

Temperature rise must be within the range specified on the unit
rating plate. An incorrect temperature rise may result in condens-
ing in or overheating of the heat exchanger.  An airflow and tem-
perature rise table is provided in the Specification Sheet applicable
to your model.  Determine and adjust temperature rise as follows:

1. Operate furnace with burners firing for approximately ten

minutes.  Ensure all registers are open and all duct dampers
are in their final (fully or partially open) position.

2. Place thermometers in the return and supply ducts as close

to the furnace as possible.  Thermometers must not be
influenced by radiant heat by being able to “see” the heat
exchanger.

3. Subtract the return air temperature from the supply air

temperature to determine the air temperature rise.  Allow
adequate time for thermometer readings to stabilize.

4. Adjust temperature rise by adjusting the circulator blower speed.

Increase blower speed to reduce temperature rise. Decrease blower speed to increase temperature rise.  Refer to 

Startup

Procedure and Adjustment -Circulator Blower Speeds

 for speed changing details.

C

IRCULATOR

 B

LOWER

 S

PEEDS

This furnace is equipped with a multi-speed circulator blower.  This blower provides ease in adjusting blower speeds.  The Specifica-
tion Sheet applicable to your model provides an airflow table, showing the relationship between airflow (CFM) and external static
pressure (E.S.P.), for the proper selection of heating and cooling
speeds.

1. Determine the tonnage of the cooling system installed with

the furnace. If the cooling capacity is in BTU/hr divide it by
12,000 to convert capacity to tons.

Example:

Cooling Capacity of 30,000 BTU/hr.
30,000/12,000 = 2.5 Tons

2. Determine the proper air flow for the cooling system.  Most

cooling systems are designed to work with air volume between 350 and 450 CFM per ton. Most manufacturers recommend an
air flow of about 400 CFM per ton.

Example:

 2.5 tons X 400 CFM per ton = 1000 CFM

3.

Select the heating speed for your model from the heating speed chart in the Specification Sheet. The selected speed must
provide a temperature rise within the rise range listed with the particular model.

To adjust the circulator blower speed, proceed as follows:

1. Turn OFF power to the furnace.
2. Select the heating and cooling blower speeds that match the installation requirements from the 

airflow table in the

Specification Sheet

.

3. Relocate desired motor leads  to the circulator blower heat and cool speed terminals on the integrated control module.

(Terminals are identified as HEAT and COOL). If heating and cooling blower speeds are the same, a jumper wire must
be used between the heat and cool terminals.

4. Connect all unused blower motor leads to the “PARK” terminals on the integrated control module.  Any leads not

connected to the “PARK” terminals must be taped.

5. Turn ON power to furnace.
6. Verify proper temperature rise as outlined in the

 Temperature Rise 

section of

 Startup Procedure and Adjustment.

In general lower heating speeds will: reduce electrical consumption, lower operating sound levels of the blower, and increase the outlet
air temperature delivered to the home.   The speeds available allow the blower performance to be optimized for the particular
homeowner’s needs.

SUPPLY
    AIR

RETURN
    AIR 

Temperature Rise Measurement

Figure 42

T

O

 

AVOID

 

PERSONAL

 

INJURY

 

OR

 

DEATH

 

DUE

 

TO

 

ELECTRICAL

 

SHOCK

TURN

 OFF 

POWER

 

TO

 

THE

 

FURNACE

 

BEFORE

 

CHANGING

 

SPEED

 

TAPS

.

WARNING

Содержание *CSS920402BN

Страница 1: ...ETY PRECAUTION is a registered trademark of Maytag Corporation or its related companies and is used under license All rights reserved TABLE OF CONTENTS SAFETY CONSIDERATIONS 3 SHIPPING INSPECTION 4 EL...

Страница 2: ...RAP PRIMING 33 FURNACE OPERATION 33 GAS SUPPLY PRESSURE MEASUREMENT 34 GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT 34 GAS INPUT RATE MEASUREMENT NATURAL GAS ONLY 35 TEMPERATURE RISE 36 CIRCULATOR...

Страница 3: ...ns when install ing adjusting altering servicing or operating the furnace To ensure proper installation and operation thoroughly read this manual for specifics pertaining to the installation and appli...

Страница 4: ...ome loose in transit In the event of damage the consignee should 1 Make a notation on delivery receipt of any visible damage to shipment or container 2 Notify carrier promptly and request an inspectio...

Страница 5: ...for use with natural or propane gas NOTE If using propane a propane conversion kit is required Dual certification means that the combustion air inlet pipe is optional and the furnace can be vented as...

Страница 6: ...ing combustion products outdoors through a proper venting system Special consideration should begiventovent fluepiperoutingandcombustionairintakepipewhenapplicable Referto Vent FluePipeandCombustion A...

Страница 7: ...snecessary useanaccessory subbase seeSpecificationSheetapplicableforyourmodelfordetails Aspecialaccessorysubbasemustbeusedforupright counterflow unit installations over any combustible material includ...

Страница 8: ...any unused openings in the venting system 2 Inspect the venting system for proper size and horizontal pitch as required by the National Fuel Gas Code ANSI Z223 1 or the Natural Gas and Propane Install...

Страница 9: ...back drafting or improper combustion of gas fired appliances thereby exposing building occupants to gas combustion products that could include carbon monoxide If this furnace is to be installed in th...

Страница 10: ...tothefurnacesidepanel suspendingitbelowthefurnace Aminimum clearance of 5 5 below the furnace must be provided for the drain trap Additionally the appropriate downward piping slope must be maintained...

Страница 11: ...all vent flue piping and connectorsarecompatiblewithfurnaceflueproducts Additionally itistheresponsibilityoftheinstallertoensurethatallpipingand connections possess adequate structural integrity and s...

Страница 12: ...n from a 2 to 3 pipe in a horizontal section of pipe as this may create a water trap PREFERRED TRANSITION NO LESS THAN 45 DEGREES TO HORIZONTAL PLANE TO AVOID CREATING A WATER TRAP IN VENT PIPING ACCE...

Страница 13: ...orted Vent FluePipe The vent pipe outlet is sized to accept 2 pipe Secure vent flue pipe directly into the furnace fitting with the appropriate glue Alternately a small section of 2 pipe may be glued...

Страница 14: ...r outlet 5 Install cut end of the flanged section and connect to inducer with rubber coupling supplied with furnace 6 Install screws removed in step 1 securing flange to cabinet THE RUBBER ELBOW IS NO...

Страница 15: ...ness plus the depth of the socket fittings to be installed on the inside and outside of the wall The wall penetration should be sealed with silicone caulking material NOTE Terminate both pipes in the...

Страница 16: ...Condensate trapped to prevent flue gas from escaping and routed to field supplied condensate disposal Combustion Air Pipe Vent Pipe All piping and fittings must be joined per material manufacturer s s...

Страница 17: ...termining the number of elbows in the piping systems If the combustion air intake pipe is to be installed above a finished ceiling or other area where dripping of condensate will be objectionable insu...

Страница 18: ...Refer to the directions furnished with the Side Wall Vent Kit p n 0170K00000S or 0170K00001S for installation specifica tions CONDENSATE DRAIN LINES DRAIN TRAP A condensing gas furnace achieves its hi...

Страница 19: ...ed horizontally require the trap to be relocated Many drain hoses have a built in grommet which will provide a cabinet seal when installed See instructions below for your model and installation positi...

Страница 20: ...Remove the trap and two hoses from the blower deck 4 Remove the two plugs from the right side of the cabinet and install them in the blower deck 5a Draining the Vent Elbow Locate hose 2 factory instal...

Страница 21: ...e the trap to the cabinet using two screws removed in step 2 by inserting the two screws through the large set of holes in the top mounting tabs of the trap into the two predrilled holes in the side o...

Страница 22: ...clamps 7 Fasten the drain trap to the cabinet with two screws removed in step 2 8 Refer to Field Supplied Drain section for instructions on field supplied installed drain on outlet of furnace trap COU...

Страница 23: ...e observed when making field connections Line voltage connections can be made through either the right or left side panel The furnace is shipped configured for a left side right side for counterflows...

Страница 24: ...ig ured for a left side electri cal connection To make electrical connections through the opposite side of the furnace the junction box must be relocated to the left side prior to making electrical co...

Страница 25: ...The combination of the lower air density and a lower manifold pressure will prohibit the burner orifice from drawing the proper amount of air into the burner This may cause incomplete combustion flash...

Страница 26: ...valve and line and fittings to connect to gas valve In some cases the installer may also need to supply a transition piece from 1 2 pipe to a larger pipe size Thefollowingstipulationsapplywhenconnect...

Страница 27: ...rd Gas Line Hole Ground Joint Pipe Union Ground Joint Pipe Union NOTE Union may be inside furnace cabinet where allowed by local codes COUNTERFLOW Figure 32 Drip Leg Plug in Main Gas Line Hole Alterna...

Страница 28: ...sulting in heat exchanger failure Disconnect this unit and shutoff valve from the gas supply piping system before pressure testing the supply piping system with pressures in excess of 1 2 psig 3 48 kP...

Страница 29: ...g plate for the maximum ESP ex ternal duct static rating Total external static refers to everything external to the fur nace cabinet Cooling coils filters ducts grilles registers must all be considere...

Страница 30: ...s retaining the sheet metal over the duct opening Using tin snips cut the metal strips and remove the sheet metal covering the duct opening In the corners of the open ing cut the sheet metal along the...

Страница 31: ...BN 2 10 X 20 or 1 16 X 25 Top Return CSS9 0804CN 2 10 X 20 or 1 16 X 25 Top Return CSS9 1005CN 2 14 X 20 or 1 20 X 25 Top Return CSS961205DN 2 14 X 20 or 1 20 X 25 Top Return Other size filters of equ...

Страница 32: ...11 5 2 X 1600 CFM 2 16 in X 25 in x 5 AM11 3225 5 AM11 3225 AM11 5PP AM11 5 AM11 5RA AM11 5PP Family Family Family Upright Installations Depending on the installation and or customer preference differ...

Страница 33: ...uipped with an ignition device which automatically lights the burner Do not try to light the burner by hand 5 Move the furnace gas valve manual control to the OFF position 6 Wait five minutes then sme...

Страница 34: ...2 gas valve then use the 36G J Valve Pressure Check Kit Part No 0151K00000S 3 TurnONthegassupplyandoperatethefurnaceandallothergasconsuming appliances on the same gas supply line 4 Measure furnace gas...

Страница 35: ...s to gas conversion consult your dealer for appropriate conversion GAS INPUT RATE MEASUREMENT NATURAL GAS ONLY The actual gas input rate to the furnace must never be greater than that specified on the...

Страница 36: ...stalled with the furnace If the cooling capacity is in BTU hr divide it by 12 000 to convert capacity to tons Example Cooling Capacity of 30 000 BTU hr 30 000 12 000 2 5 Tons 2 Determine the proper ai...

Страница 37: ...rol module monitors flame presence Gas valve will remain open only if flame is detected Circulator blower is energized on heat speed following a thirty 30 second blower on delay 96 models 115 VAC EAC...

Страница 38: ...rmally closed electrically automatic reset temperature activated sensor The limit guards against overheating as a result of insufficient conditioned air passing over the heat exchanger AUXILIARY LIMIT...

Страница 39: ...e control is in standby mode no call for heat or cool press the FAULT RECALL switch for five to ten seconds or until the diagnostic LED begins to rapid flash When the switch is released the LED will t...

Страница 40: ...e To remove 1 Turn OFF electrical power to furnace 2 Remove filter s from the central return register or ductwork 3 Replace filter s by reversing the procedure for removal 4 TurnONelectricalpowertofur...

Страница 41: ...should be as indicated in the Specifications Sheet FLUE PASSAGES QUALIFIED SERVICER ONLY The heat exchanger flue passageways should be inspected at the beginning of each heating season BEFORE LEAVING...

Страница 42: ...Loose or improperly connected wiring Pressure switch circuit not closed Induced draft blower is operat ing Induced draft blower runs continuously with no further furnace operation Integrated control m...

Страница 43: ...5 5 FLASHES Short to ground in flame sense circuit Furnace fails to operate Integrated control module diagnostic LED is flashing SIX 6 flashes No furnace operation Rollout limit open Integrated contro...

Страница 44: ...5 1084 1005 HIGH 5 0 2284 30 2231 31 2170 31 2103 32 2037 33 1945 1836 1750 MED 4 0 1865 37 1869 36 1775 38 1732 39 1684 40 1619 1548 1480 MED LO 3 5 1594 43 1571 43 1530 45 1492 46 1454 47 1414 1355...

Страница 45: ...N A 610 N A 604 571 519 HIGH 5 0 2233 32 2159 33 2086 34 2024 35 1941 37 1850 1753 1651 MED 4 0 1820 39 1778 40 1742 41 1695 42 1638 43 1551 1485 1384 MED LO 3 5 1571 45 1535 46 1497 48 1446 49 1402...

Страница 46: ...TIONS N E C CLASS 2 WIRE GR GND 115 VAC 24 VAC BLOWER COMPARTMENT DOOR SWITCH OPEN WHEN DOOR OPEN DOOR SWITCH WARNING DISCONNECTPOWER BEFORE SERVICING WIRING TO UNITMUSTBE PROPERLY POLARIZED AND GROUN...

Страница 47: ...GND 115 VAC 24 VAC BLOWER COMPARTMENT DOOR SWITCH OPEN WHEN DOOR OPEN DOOR SWITCH WARNING DISCONNECTPOWER BEFORE SERVICING WIRING TO UNITMUST BE PROPERLY POLARIZEDAND GROUNDED BK GND DISCONNECT L N PO...

Страница 48: ...tly mounted to the exterior of the building at a minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or...

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