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5715184-BIM-A-0519

SINGLE STAGE 
MANUFACTURED HOUSING OR 
MODULAR HOME GAS FURNACES 

MODELS: MM9E Series - 33" - 

Shipped in Downflow Configuration

(95.0% AFUE Multi-Position)

INSTALLATION MANUAL

LIST OF SECTIONS

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

DUCTWORK  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

FILTERS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

GAS PIPING   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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

CONDENSATE PIPING AND FURNACE 

VENTING CONFIGURATION  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

COMBUSTION AIR AND VENT SYSTEM   . . . . . . . . . . . . . . . . . . . 17

START-UP AND CHECKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

SAFETY CONTROLS   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

NORMAL OPERATION AND DIAGNOSTICS . . . . . . . . . . . . . . . . . 30

REPLACEMENT PARTS LIST   . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . 32

WIRING DIAGRAM   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

LIST OF FIGURES

Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Attachment to Structure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Combustible Floor Base Accessory  . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mobile Home Filter Frame Accessories  . . . . . . . . . . . . . . . . . . . . . . . 7
Blend Air Installation (Optional)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Blend Air Bracket  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Downflow Venting   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Furnace and Coil Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions (Upflow Configuration Shown)  . . . . . . . . . . . . . . . . . . . . 9
Side Return Cutout Markings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Left Side Supply Gas Pipe Arrangement  . . . . . . . . . . . . . . . . . . . . . 10
Upflow/Downflow Gas Piping  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical Wiring  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Line Wiring Connections   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Single Stage Heat Thermostat Connections   . . . . . . . . . . . . . . . . . . 12
Accessory Connections  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Typical Condensate Drain, Vertical Installation   . . . . . . . . . . . . . . . . 13
Upflow Configuration   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Downflow Configuration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Elbow Dimensions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Home Layout   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Termination Configuration - 2 Pipe  . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Termination Configuration - 2 Pipe Basement  . . . . . . . . . . . . . . . . . 21
Double Horizontal Combustion Air Intake and Vent Termination  . . . 21
Double Vertical Combustion Air Intake and Vent Termination  . . . . . 21
Downward Venting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Direct Vent Air Intake Connection and Vent Connection   . . . . . . . . . 22
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . 23
Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . . 24
Gas Valve  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Reading Gas Pressure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Furnace Control Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Wiring Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cabinet and Duct Dimensions - MM9E   . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended Filter Sizes (High Velocity 600 FPM)   . . . . . . . . . . . . 9
Nominal Manifold Pressure - High Fire   . . . . . . . . . . . . . . . . . . . . . . 11
Ratings and Physical/Electrical Data - MM9E  . . . . . . . . . . . . . . . . . 12
Maximum Equivalent Pipe Length  . . . . . . . . . . . . . . . . . . . . . . . . . . 18
High Altitude Pressure Switches   . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Elbow Dimensions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Equivalent Length of Fittings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Combustion Air Intake and Vent Connection 
Size at Furnace (All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Unconfined Space Minimum Area in Square Inch   . . . . . . . . . . . . . . 23
Free Area  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Gas Rate (CU FT/HR) at Full Input . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Inlet Gas Pressure Range   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Default Blower Speeds  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Blower Performance CFM - Any Position (Without Filter) - MM9E  . . 29

These high efficiency, compact units employ induced combustion, reli-
able hot surface ignition, and high heat transfer aluminized tubular heat
exchangers. The units are factory shipped for installation in downflow
applications and may be converted for upflow applications.

These furnaces are designed for residential installation in a basement,
closet, alcove, attic, recreation room, or garage. All units are factory
assembled, wired, and tested to ensure safe, dependable, and eco-
nomical installation and operation.

These units are Category IV listed and may not be common vented with
another gas appliance as allowed by the National Fuel Gas Code.

Содержание MM9E Series

Страница 1: ...Termination 21 Downward Venting 22 Direct Vent Air Intake Connection and Vent Connection 22 Outside and Ambient Combustion Air 23 Attic and Crawl Space Combustion Air Termination 24 Gas Valve 27 Readi...

Страница 2: ...The size of the unit must be based on an acceptable heat loss cal culation for the structure ACCA Manual J or other approved meth ods may be used 12 When moving or handling this furnace prior to inst...

Страница 3: ...hes etc Hydrochloric acid Cements and glues Antistatic fabric softeners for clothes dryers Masonry acid washing materials When outdoor air is used for combustion the combustion air intake duct system...

Страница 4: ...r protected to avoid physical damage by vehicles 24 in clearance in front and 18 in on side recommended for service access All furnaces approved for alcove installation FOR FURNACES INSTALLED IN THE C...

Страница 5: ...urnace does not operate properly The ducts attached to the furnace plenum must be of sufficient size so the furnace operates at the specified external static pressure and within the air temperature ri...

Страница 6: ...wnflow installations must use 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 t...

Страница 7: ...Filters Downflow furnaces typically are installed with the filters located above the furnace extending into the return air plenum or duct Any branch duct rectangular or round duct attached to the plen...

Страница 8: ...ng 7 6 9 17 5 7 6 9 17 5RWDWH YHQW EORZHU HLWKHU ZD IMPORTANT On all installations without a coil a removable access panel is recommended in the outlet duct such that smoke or reflected light would be...

Страница 9: ...ZQIORZ RPEXVWLRQ LU QOHW DV 3LSH QWU OHFWULFDO QWU RQGHQVDWH UDLQ 2SWLRQDO 5HWXUQ LU XWRXW LWKHU VLGH RU ODGGHG GRRU DGG DSSR LPDWHO DQ DGGLWLRQDO 6833 1 RPEXVWLRQ LU QOHW 5 7851 1 9HQW RQQHFWLRQ 2XWO...

Страница 10: ...pples and conventional 90 degree elbow s to enter through the cabinet access holes FIGURE 11 Gas Valve DANGER An overpressure protection device such as a pressure regulator must be installed in the ga...

Страница 11: ...be shut off prior to disconnecting the electrical power before proceeding with the conversion WARNING SHOCK HAZARD Turn off electrical supply to furnace WARNING Never use an open flame to check for l...

Страница 12: ...thermostat by following the instructions that come with the thermostat With the thermostat set in the OFF position and the main electrical source disconnected connect the thermostat wiring from the w...

Страница 13: ...nsate pan is self priming and contains an inter nal trap to prevent flue gas leaking Do not install an external con densate trap IMPORTANT The furnace indoor coil and humidifier drains may be combined...

Страница 14: ...taken to prevent the drain line from freezing Failure to provide proper protection from freezing can result in improper operation or damage to the equipment and possible property damage When exposed t...

Страница 15: ...I VR WKDW QR VDJJLQJ ORRSV ZLOO FROOHFW DQG KROG FRQGHQVDWH ZKLFK ZLOO FDXVH WKH IXUQDFH WR QRW RSHUDWH 6KRUWHQ SUHVVXUH VZLWFK KRVH 5H URXWH DQG VKRUWHQ SUHVVXUH VZLWFK KRVH 6KRUWHQ UDLQ JXWWHU KRVH...

Страница 16: ...KLV SRVLWLRQ 127 0D UHTXLUH WKH ORQJHU KRVH WKDW LV SURYLGHG ZLWK ZLGHU FDELQHWV 0RYH FRQGHQVDWH GUDLQ KRVH WR WKLV SRVLWLRQ 0D H LW HLWKHU VLGH RI WKH FDELQHW 0RYH UDLQ JXWWHU KRVH WR WKLV SRVLWLRQ K...

Страница 17: ...ciety for Test ing and Materials ASTM standards D1785 Schedule 40 PVC D2665 PVC DWV F891 PVC DWV Cellular Core D2261 ABS DWV or F628 Schedule 40 ABS Pipe cement and primer must conform to ASTM Standar...

Страница 18: ...A 100 000 3 80 100 000 3 60 100 000 4 145 100 000 4 125 Elevation 4001 5000 Elevation 8001 9000 Model Input BTUH Pipe Size in Max Equivalent Length ft Model Input BTUH Pipe Size in Max Equivalent Leng...

Страница 19: ...A Dimension Illustrated in Figure 21 2 in Standard 2 5 16 in 3 in Standard 3 1 16 in 2 in Sweep 3 1 4 in 3 in Sweep 4 1 16 in TABLE 9 Equivalent Length of Fittings Fitting Equivalent Length 2 in 90 sw...

Страница 20: ...as supplier 12 in 30 5 cm or in accordance with local installation codes and the requirements of the gas supplier F Clearance to outside corner 12 in 30 5 cm or in accordance with local installation c...

Страница 21: ...ustion air sec tions in these instructions Follow the instructions for outdoor combus tion air or ventilated combustion air and the instructions for installing the vent system with the vent terminatin...

Страница 22: ...imming pool or a location where swimming pool chemicals might be stored Be sure the terminal assembly follows the outdoor clearances listed in Section 1 Outdoor Air Contaminants An unconfined space is...

Страница 23: ...n 12 in 30 5 mm of the bottom of the confined space shall communicate directly or by means of ducts with the outdoors crawl spaces or attic spaces 2 One permanent opening commencing within 12 in 30 5...

Страница 24: ...eing placed into operation could result in carbon monxide poisoning or death The following steps shall be followed for each appliance connected to the venting system being placed into operation while...

Страница 25: ...pilots 2 Run furnace for a minimum of 3 minutes in heating operation 3 Measure time in sec for gas meter to complete 1 revolution and note reading The 2 cubic ft dial provides a more accurate measure...

Страница 26: ...300 750 78 46 92 231 25 144 288 720 80 45 90 225 26 138 277 692 82 44 88 220 27 133 267 667 84 43 86 214 28 129 257 643 86 42 84 209 29 124 248 621 88 41 82 205 30 120 240 600 90 40 80 200 31 116 232...

Страница 27: ...ench 3 Turn the electrical and gas supplies back on and with the burners in operation check for gas leakage around the gas valve pressure port using an approved non corrosive gas leak detection fluid...

Страница 28: ...ower speed for each model is shown in Table 17 Use of a heating speed other than the default heating blower speed may result in reduced energy efficiency and higher electric utility bills In certain c...

Страница 29: ...B High 1418 1390 1364 1333 1304 1281 1246 1205 Medium High 1305 1281 1244 1217 1182 1149 1109 1066 Medium 1139 1112 1071 1035 992 951 908 874 Medium Low 1017 986 948 901 859 819 765 727 Low 885 821 76...

Страница 30: ...on air is provided the pressure switch closes and the ignition control provides a 17 second ignitor warm up period The gas valve then opens the gas starts to flow ignition occurs and the flame sensor...

Страница 31: ...Flashes and will enter a one hour soft lockout 5 RED FLASHES This fault is indicated if the normally closed rollout switch opens The rollout control is manually reset Check for proper combustion air...

Страница 32: ...e memory has been cleared and resumes the normal slow green flash after a five second pause SECTION XI REPLACEMENT PARTS LIST DESCRIPTION MOTOR MOTOR DIRECT DRIVE BLOWER BLOWER COMBUSTION ELECTRICAL C...

Страница 33: ...RVICE 5754336 UWD A 0519 Fault Code Retrieval To retrieve fault codes push and release ERROR button on control board The LED will flash the last five error codes beginning with the most recent If ther...

Страница 34: ...5715184 BIM A 0519 34 Johnson Controls Ducted Systems NOTES...

Страница 35: ...Ells Polarity is correct black is L1 hot white is N neutral Ground wire is connected Line voltage value to furnace volts AC Low voltage value between R and C on furnace control board volts AC Thermos...

Страница 36: ...atic in w c after Air Side Heating Air Side Cooling Air Side Continuous Fan Clean Up Give owner the owner s manual provided Gas Type Explain thermostat use and programming if applicable to owner Cycle...

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