Comfortaire Century m5sb a series Technical Document

NORTEK - Manufactured Housing HVAC Equipment Guide

HVAC EQUIPMENT GUIDE

Electric Furnaces, 80% Gas Furnaces

95% Gas Furnaces, 83% Oil Furnaces

Coils and Accessories

Nortek-Style Manufactured Housing Furnaces

NORTEK - Manufactured Housing HVAC Equipment Guide

NORTEK - Manufactured Housing

HVAC Equipment Guide

Table of Contents

Cover Page.........................................................................................................1

E7-Page .............................................................................................................2

MG1E-Page........................................................................................................3

MG1E-Venting .................................................................................................... 4

MG1E-Nat Gas ...................................................................................................5

MG1E-Propane...................................................................................................6

MG2R-Page........................................................................................................7

MG2R-Venting....................................................................................................8

MG2R-Nat Gas...................................................................................................9

MG2R-Propane ................................................................................................10

M5SB-Page......................................................................................................11

M5SB-Venting ..................................................................................................12

Furnace Duct Connector...................................................................................13

NORTEK - Manufactured Housing HVAC Equipment Guide

MANUFACTURED HOUSING

ELECTRIC FURNACES

E7ED - Downflow

E7EM - Upflow / Downflow

E7ED

E7EM

M5SB*B

M5SB*A

MG1E*B

MG1E*A

MG2R*B/C

MG2R*A

MANUFACTURED HOUSING

GAS FURNACES

MG2R*A - Downflow Without Coil Box

MG2R*B - Downflow With Coil Box

MG2R*C - Downflow With Coil Box

MANUFACTURED HOUSING

GAS FURNACES

MG1E*A - Downflow Without Coil Box

MG1E*B - Downflow With Coil Box

MANUFACTURED HOUSING

OIL FURNACES

M5SB*A - Downflow Without Coil Box

M5SB*B - Downflow With Coil Box

NORTEK - Manufactured Housing HVAC Equipment Guide

E7-Series Electric Furnaces:

•E7ED Downflow Only w/ 31” Coil Cabinet

•E7EM Upflow/Downflow NO CABINET

E7EM-Series Upflow/Downflow

(All Have 4-Ton Blowers)

E7EM-010H*-- 10kW E7EM-012H*– 12kW

E7EM-015H*– 15kW E7EM-017H*– 17kW

E7EM-020H*– 20kW E7EM-023H*– 23kW

Mounting Bracket

w/ Tabs

Duct

Connector

Insulation

Finger-Tab Duct Connectors

901988A 2” Duct Connector

901989A 4” Duct Connector

901990A 6” Duct Connector

901991A 8” Duct Connector

901992A 10.25” Duct Connector

Solid Door for E7EM

Part # 917260

5-Ton Blower Assembly for E7EM or E7ED

Part # 1027059 (Not Shown)

E7ED-Series Downflow w/ 31” Coil Cabinet

(All Have 4-Ton Blowers)

E7ED-010H*-- 10kW E7ED-012H*– 12kW

E7ED-015H*– 15kW E7ED-017H*– 17kW

E7ED-020H*– 20kW E7ED-023H*– 23kW

Filter Sizes:

E7EM (1) 20x18x1

E7ED (1) 20x18x1, (1) 30x18x1

Optional Frame and Grille Assembly

for E7EM Models Part # 902989

Louvered Door for E7ED

Part # 101480702R

NORTEK - Manufactured Housing HVAC Equipment Guide 3

Mounting Bracket

w/ Tabs

Duct

Connector

Insulation

MG1E-Series 80% AFUE Gas Furnaces:

•MG1E-***F1ABM*Downflow w/ 20” Coil Cabinet

•MG1E-***F1AAM*Downflow NO CABINET

Filter Sizes:

MG1E (All) - 19.5”x 28” Blue Hogs Hair Filter

Finger-Tab Duct Connectors

901988A 2” Duct Connector

901989A 4” Duct Connector

901990A 6” Duct Connector

901991A 8” Duct Connector

901992A 10.25” Duct Connector

Louvered Door for MG1E (All)

Part # 903407

**SEE NEXT PAGE FOR VENT PRODUCTS**

MG1E-***F1AAM* Downflow with no coil cab

(All Have 4-Ton Blowers)

MG1E-056F1AAM*– 56KBtu Input

MG1E-070F1AAM*– 70KBtu Input

MG1E-077F1AAM*– 77KBtu Input

MG1E-090F1AAM*– 90KBtu Input

High Altitude (above 2000’ Installation) for MG1E (ALL):

See Nat/LP Orifice Page MANDATORY

1018498 High Altitude Pressure Switch Hose Kit – used where

nuisance tripping occurs on OEM switch OPTIONAL

MG1E-***F1ABM* Downflow w/ 20” Coil Cab

(All Have 4-Ton Blowers)

MG1E-056F1ABM* – 56KBtu Input

MG1E-070F1ABM* – 70KBtu Input

MG1E-077F1ABM* – 77KBtu Input

MG1E-090F1ABM* – 90KBtu Input

26” Coil Cabinet - Part # 922594

Louvered Door for MG1E (All)

Part # 903407

Solid Door for Coil Cab on MG1E-***F1ABM* ONLY

Part # 903094

NORTEK - Manufactured Housing HVAC Equipment Guide

MG1E-Series 80% AFUE Gas Furnaces:

•MG1E-***F1ABM*Downflow w/ 20” Coil Cabinet

•MG1E-***F1AAM*Downflow NO CABINET

TO SELECT ROOFJACK: A + B (+X IF PITCHED ROOF)

FLAT ROOF JACKS: Use alone or in combination with wedges below for pitched roofs

903658 – Flat Roof Jack 15” to 23”

903659 – Flat Roof Jack 21” to 35”

903660– Flat Roof Jack 27” to 47”

PITCHED ROOF JACKS: Use alone or in combination with wedges below for higher pitch roofs

903664 – 2/12 Pitch Roof Jack 35” to 63”

920638 – 2/12 Pitch Roof Jack 51” to 95”

ROOF WEDGES: Use in combination with Flat or Pitched Roof Jacks

903893 – 2.5/12 Roof Wedge

903894 – 3/12 Roof Wedge

903895 – 4/12 Roof Wedge

ROOFJACK ACCESSORIES:

902521 – Ceiling Ring for Roof Jacks

901937 – 16” Exterior Roof Jack Extension

901935 – 10” Interior Roof Jack Extension

903107 – 18” interior Roof Jack Extension

NORTEK - Manufactured Housing HVAC Equipment Guide

MG1E-Series 80% AFUE Gas Furnaces NAT GAS Orifice Selection

ORIFICE PART NUMBERS:

661017R - #17 661018R - #18 661019R - #19** 661020R - #20 661021R -

#21

661022 - #22 662023R - #23 661024R - #24 661025R - #25 661026R -

#26

661027 - #27 661028 - #28 661029R - #29 661030R - #30 661031 - #31

661032R - #32** 661035 - #35 661036R - #36 661037R - #37 661038 - #38

661039R - #39** 661040 - #40 661041R - #41 661042R - #42 661043R - #43

661044R - #44 661045R - #45 661046R - #46 661047R - #47 661048R - #48

661049R -#49 661050R - #50 661051R - #51 661052R – #52 661055R - #55

661056R - #56 661057R - #57 661058R - #58 661059 - #59 661060 - #60

661061R - #61

**NOTE: #19, #32, and #39 Orifices have been discontinued. Use the next size smaller orifice**

NATURAL GAS ORIFICES: Use the following steps to determine appropriate orifice for installation altitude.

1. Consult Local Utility for “LOCAL HEATING VALUE” at installation site. Use “Local Heating Values” chart to

determine if this value is considered “LOW” or “HIGH” based on installation altitude.

2. Use “Natural Gas – High Heating Value” or “Natural Gas – Low Heating Value” chart to determine appropriate

orifice based on furnace model.

NORTEK - Manufactured Housing HVAC Equipment Guide

MG1E-Series 80% AFUE Gas Furnaces PROPANE Orifice Selection

ORIFICE PART NUMBERS:

661017R - #17 661018R - #18 661019R - #19** 661020R - #20 661021R -

#21

661022 - #22 662023R - #23 661024R - #24 661025R - #25 661026R -

#26

661027 - #27 661028 - #28 661029R - #29 661030R - #30 661031 - #31

661032R - #32** 661035 - #35 661036R - #36 661037R - #37 661038 - #38

661039R - #39** 661040 - #40 661041R - #41 661042R - #42 661043R - #43

661044R - #44 661045R - #45 661046R - #46 661047R - #47 661048R - #48

661049R -#49 661050R - #50 661051R - #51 661052R – #52 661055R - #55

661056R - #56 661057R - #57 661058R - #58 661059 - #59 661060 - #60

661061R - #61

**NOTE: #19, #32, and #39 Orifices have been discontinued. Use the next size smaller orifice**

NOTES: Includes 4% Input Reduction for each 1,000 feet. Reference Sources: ANSI Z223.1, CSA B149.1, NFPA 54 and National Fuel Gas Code.

PROPANE ORIFICES: Use the chart below to determine appropriate orifice based on model and installation altitude.

NORTEK - Manufactured Housing HVAC Equipment Guide

Mounting Bracket

w/ Tabs

Duct

Connector

Insulation

MG2R-Series 95% AFUE Gas Furnaces:

•MG2R-***F1ABM*Downflow w/ 20” Coil Cabinet

•MG2R-***F1ACM* Downflow w/ 25” Coil Cabinet

•MG2R-***F1AAM*Downflow NO CABINET

Finger-Tab Duct Connectors

901988A 2” Duct Connector

901989A 4” Duct Connector

901990A 6” Duct Connector

901991A 8” Duct Connector

901992A 10.25” Duct Connector

MG2R-***F1AAM* Downflow with no coil cab

(All Have 4-Ton Blowers)

MG2R-045F1AAM*– 45KBtu Input

MG2R-060F1AAM*– 60KBtu Input

MG2R-072F1AAM*– 72KBtu Input

MG2R-***F1ABM* Downflow w/ 20” Coil Cab

(All Have 4-Ton Blowers)

MG2R-045F1ABM* – 56KBtu Input

MG2R-060F1ABM* – 70KBtu Input

MG2R-072F1ABM* – 72KBtu Input

Louvered Door for MG2R

Part # 903977 (F1AAM*/F1ABM*)

Part # 104391801R (F1ACM*)

Solid Door for MG2R Coil Cab

Part # 903094 (F1ABM*)

Part # 104391803R (F1ACM*

Filter Sizes:

MG2R (All) - 19.5”x 21.5” Blue Hogs Hair Filter

26” Coil Cabinet - Part # 922594

**SEE NEXT PAGE FOR VENT PRODUCTS**

MG2R-***F1ACM* Downflow w/ 25” Coil Cab

(All Have 4-Ton Blowers)

MG2R-045F1ACM* – 56KBtu Input

MG2R-060F1ACM* – 70KBtu Input

MG2R-072F1ACM*

– 72KBtu Input

NORTEK - Manufactured Housing HVAC Equipment Guide

MG2R-Series 95% AFUE Gas Furnaces:

•MG2R-***F1ABM*Downflow w/ 20” Coil Cabinet

•MG2R-***F1ACM* Downflow w/ 25” Coil Cabinet

•MG2R-***F1AAM*Downflow NO CABINET

CONCENTRIC PVC KITS: Vertical or Horizontal Intake and Exhaust Termination Kit

904952 – 2” Concentric for MG2R

904953 – 3” Concentric for MG2R

TRANSITION VENT KIT: Use with Existing Roof Jack Opening

904106 – 2” Transition Vent Kit for MG2R

PIPING SIZE TABLE: Combined Intake and Exhaust Max. Length

*Consult IOM for complete venting information

1. Subtract 2.5ft. for each additional 2” Long Radius Elbow, subtract 5ft. for each

additional 2” Short Radius Elbow, subtract 3.5ft. for each additional 3” Long

Radius Elbow, and 7ft. for each additional 3” Short Radius Elbow.

2. Two (2) 45 degree elbows are equivalent to one (1) 90 degree elbow.

3. This table applies for elevations from sea level to 2,000ft. elevation. For higher

elevations, decrease pipe lengths by 8% per 1000ft. of altitude.

NORTEK - Manufactured Housing HVAC Equipment Guide

MG2R-Series 95% AFUE Gas Furnaces NAT GAS Orifice Selection

ORIFICE PART NUMBERS:

661017R - #17 661018R - #18 661019R - #19** 661020R - #20 661021R -

#21

661022 - #22 662023R - #23 661024R - #24 661025R - #25 661026R -

#26

661027 - #27 661028 - #28 661029R - #29 661030R - #30 661031 - #31

661032R - #32** 661035 - #35 661036R - #36 661037R - #37 661038 - #38

661039R - #39** 661040 - #40 661041R - #41 661042R - #42 661043R - #43

661044R - #44 661045R - #45 661046R - #46 661047R - #47 661048R - #48

661049R -#49 661050R - #50 661051R - #51 661052R – #52 661055R - #55

661056R - #56 661057R - #57 661058R - #58 661059 - #59 661060 - #60

661061R - #61

**NOTE: #19, #32, and #39 Orifices have been discontinued. Use the next size smaller orifice**

NATURAL GAS ORIFICES: Use the following steps to determine appropriate orifice for installation altitude.

1. Consult Local Utility for “LOCAL HEATING VALUE” at installation site. Use “Local Heating Values” chart to

determine if this value is considered “LOW” or “HIGH” based on installation altitude.

2. Use “Natural Gas – High Heating Value” or “Natural Gas – Low Heating Value” chart to determine appropriate

orifice based on furnace model.

NORTEK - Manufactured Housing HVAC Equipment Guide

MG2R-Series 95% AFUE Gas Furnaces PROPANE Orifice Selection

ORIFICE PART NUMBERS:

661017R - #17 661018R - #18 661019R - #19** 661020R - #20 661021R -

#21

661022 - #22 662023R - #23 661024R - #24 661025R - #25 661026R -

#26

661027 - #27 661028 - #28 661029R - #29 661030R - #30 661031 - #31

661032R - #32** 661035 - #35 661036R - #36 661037R - #37 661038 - #38

661039R - #39** 661040 - #40 661041R - #41 661042R - #42 661043R - #43

661044R - #44 661045R - #45 661046R - #46 661047R - #47 661048R - #48

661049R -#49 661050R - #50 661051R - #51 661052R – #52 661055R - #55

661056R - #56 661057R - #57 661058R - #58 661059 - #59 661060 - #60

661061R - #61

**NOTE: #19, #32, and #39 Orifices have been discontinued. Use the next size smaller orifice**

PROPANE ORIFICES: Use the chart below to determine appropriate orifice based on model and installation altitude.

NORTEK - Manufactured Housing HVAC Equipment Guide

Mounting Bracket

w/ Tabs

Duct

Connector

Insulation

Louvered Door for M5SB (All)

Part # 903407

M5SB-***A-AW* Downflow with no coil cab

(All Have 3-Ton Blowers)

M5SB-066A-AW*– 66KBtu Input

M5SB-086A-AW*– 86KBtu Input

M5SB-Series 83% AFUE Oil Furnaces:

•M5SB-***A-BW*Downflow w/ 20” Coil Cabinet

•M5SB-***A-AW*Downflow NO CABINET

M5SB-***A-BW* Downflow w/ 20” Coil Cab

(All Have 3-Ton Blowers)

M5SB-066A-AW*– 66KBtu Input

M5SB-086A-AW*– 86KBtu Input

26” Coil Cabinet - Part # 922594

Finger-Tab Duct Connectors

901988A 2” Duct Connector

901989A 4” Duct Connector

901990A 6” Duct Connector

901991A 8” Duct Connector

901992A 10.25” Duct Connector

4-Ton and 5-Ton Blower Upgrade Kit (not shown)

903413 – 4T Upgrade Kit

903890 – 5T Upgrade Kit

Louvered Door for M5SB (All)

Part # 903407

Filter Sizes:

M5SB (All) - 19.5”x 28” Blue Hogs Hair Filter

Solid Door for Coil Cab on M5SB-***A-BW* ONLY

Part # 903094

**SEE NEXT PAGE FOR VENT PRODUCTS**

NORTEK - Manufactured Housing HVAC Equipment Guide

TO SELECT ROOFJACK: A + B (+X IF PITCHED ROOF)

FLAT ROOF JACKS: Use alone or in combination with wedges below for pitched roofs

903658 – Flat Roof Jack 15” to 23”

903659 – Flat Roof Jack 21” to 35”

903660 – Flat Roof Jack 27” to 47”

PITCHED ROOF JACKS: Use alone or in combination with wedges below for higher pitch roofs

903664 – 2/12 Pitch Roof Jack 35” to 63”

920638– 2/12 Pitch Roof Jack 51” to 95”

ROOF WEDGES: Use in combination with Flat or Pitched Roof Jacks

903893 – 2.5/12 Roof Wedge

903894 – 3/12 Roof Wedge

903895 – 4/12 Roof Wedge

ROOFJACK ACCESSORIES:

902521 – Ceiling Ring for Roof Jacks

901937 – 16” Exterior Roof Jack Extension

901935 – 10” Interior Roof Jack Extension

903107 – 18” interior Roof Jack Extension

M5SB-Series 83% AFUE Oil Furnaces:

•M5SB-***A-BW*Downflow w/ 20” Coil Cabinet

•M5SB-***A-AW*Downflow NO CABINET

NORTEK - Manufactured Housing HVAC Equipment Guide

Step 1: Select duct connector based on distance/depth

from finished floor to supply duct. Duct connector is lowered

into hole through insulation ring. Corresponding hole is cut

in supply duct to match duct connector finger/screw tabs.

Step 2: Mounting bracket with tabs is slid underneath and

centered side-to-side. Duct connector is then attached and

sealed to supply duct using industry-approved methods –

see furnace installation manual for more details.

Step 3: Duct connector is then attached to the floor using

appropriate screws, flat-head nails, or staples.

Step 4: Furnace is slid back to against mounting bracket and

secured to floor using methods detailed in install manual.

DUCT CONNECTOR INSTALLATION DETAILS

•E7-Series, MG1E-Series, MG2R-Series, and M5SB-Series

NORTEK - Manufactured Housing HVAC Equipment Guide

Representative drawing only.

Some models may vary in appearance.

TXV for 1.5 - 2.5 Ton H4TXV01

TXV for 3 - 4 Ton H4TXV02

TXV for 5 Ton H4TXV03

MANUFACTURED

HOUSING COILS

CMH Series

SPECIFICATIONS

• Ried copper tubing, enhanced aluminum ns

• Immersion-tested at 500 psi, then nitrogen-pressurized and sealed

• Left-hand refrigerant and plumbing connections

• Externally mounted owrater body with Schrader valve

• Heavy duty plastic drain pans on all models

• AHRI certiable with certain brands of A/C and heat pump systems

• UL listed for use with both R-22 and R-410a when proper metering

device is used

Warranty—6 years on parts, 10 years when installed

as a part of a residential AHRI matched system

(Some limitations apply; see printed warranty for details.)

www.marsdelivers.com

Line-Set Connection Size

1-1/2 - 3 Ton 3/8" x 3/4"

3-1/2 - 5 Ton 3/8" x 7/8"

For Comfort-Aire/Century extended OEM ratings,

please visit www.marsdeliversratings.com

HVAC Ratings and Combinations

Real-Time Ratings Generator

NORTEK - Manufactured Housing HVAC Equipment Guide

SP-1M 9/23 CMH-COIL_SPEC

Due to ongoing product improvements, specications and dimensions are subject to change and correction without notice

or incurring obligations. Determining the application and suitability for use of any product is the responsibility of the installer.

Additionally, the installer is responsible for verifying dimensional data on the actual product prior to beginning any installation preparations.

Third party incentive and rebate programs have precise requirements as to product performance and certication.

All products meet applicable regulations in effect on date of manufacture; however, certications are not necessarily granted for the life of a product.

Therefore, it is the responsibility of the applicant to determine whether a specic model qualies for these incentive/rebate programs.

CMH Series

“This product complies with all California product

labeling laws including, but not limited to, the Safe

Drinking W

ater and Toxic Enforcement Act of 1986,

more commonly known as Proposition 65.”

Coil Model Nominal Tonage

Dimensions

Weight

Pallet

Qty

R-22

PistonPan Widths (W)" Pan Depth (D)" Coil Height (H)"

CMH18/36PM1M 1.5 - 3 18" 19-1/2" 17" 32 8 0.067

CMH24/30PM1M 2 - 2.5 18" 19-1/2" 19" 35 8 0.059

CMH24/36PM1M 2 - 3 18" 19-1/2" 17" 42 8 0.067

CMH36PM2M 2.5 - 3 18" 19-1/2" 19" 45 8 0.067

CMH42/48PM1M 3.5 - 4 18" 19-1/2" 19" 35 8 0.076

CMH42/48PM2M 3.5 - 4 18" 19-1/2" 19" 45 8 0.076

CMH48PM2M 3.5 - 4 18" 19-1/2" *21" 48 4 0.093

CMH48/60PM1M 4 - 5 18" 19-1/2" *25" 46 4 0.093

CMH48/60PM2M 4 - 5 18" 19-1/2" *23" 49 4 0.093

DIMENSIONS

Coils are shipped with R-410A pistons already installed. *Same Piston is used for R-22 and R-410A

These are Replacement Service Coils "Only" and are not RATED. For Manufactured Housing Use Only

Coil Model Nominal Tonage

Dimensions

Weight

Pallet

Qty

R-22

PistonPan Widths (W)" Pan Depth (D)" Coil Height (H)"

CMH18/24PM3M 1.5 - 2 18" 19.5" 11" 22 8 0.053

CMH36PM3M 3 18" 19.5" 15" 28 8 0.073

CMH42/60PM3M 3.5 - 5 18" 19.5" 19" 45 8 *0.093

SERVICE COIL DIMENSIONS

Description Piston Size Part Number Tonnage Outdoor

Unit

R-22 Pistons

41 176799941 12

53 176799953 18

59 176799959 24

67 176799967 30

73 176799973 36

80 176799980 42

84 176799984 48

93 176799993 60

R-410A Pistons

41 176799941 12

49 176799949 18

53 176799953 24

59 176799959 30

67 176799967 36

73 176799973 42

76 176799976 48

93 176799993 60

PISTONS

*(In reference to coil model number) NOTE:

21" or taller coils can only be used with

the following equipment combinations -

Nortek Style:

E7-Series Electric Furnaces (All Models)

MG1E/MG2R/M5SB with 922594 26" Coil

Box (NOT FOR STANDARD 20" COIL BOX)

JCI Style:

EBE-Series Electric Furnaces with

3500-8602 Cabinet Extension

NORTEK - Manufactured Housing HVAC Equipment Guide

NOTES

__________________________________

NORTEK - Manufactured Housing HVAC Equipment Guide

NOTES

__________________________________

NORTEK - Manufactured Housing HVAC Equipment Guide

SP-1M 11/23 MH-NGUIDE

Due to ongoing product improvements, specications and dimensions are subject to change and correction without notice

or incurring obligations. Determining the application and suitability for use of any product is the responsibility of the installer.

Additionally, the installer is responsible for verifying dimensional data on the actual product prior to beginning any installation preparations.

Third party incentive and rebate programs have precise requirements as to product performance and certication.

All products meet applicable regulations in eect on date of manufacture; however, certications are not necessarily granted for the life of a product.

Therefore, it is the responsibility of the applicant to determine whether a specic model qualies for these incentive/rebate programs.

“This product complies with all California product

labeling laws including, but not limited to, the Safe

Drinking W

ater and Toxic Enforcement Act of 1986,

more commonly known as Proposition 65.”

Nortek-Style Manufactured Housing Furnaces

This manual suits for next models

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