Revised June 2018. Zehnder periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder's Sales Support staff at 844-934-6337 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Revised June 1, 2018. Zehnder Rittling periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder Rittling's Sales Support staff at 716-827-6510 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder Rittling in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Zehnder Rittling · 100 Rittling Blvd. · Buffalo, NY USA 14220 T 716-827-6510 · F 716-218-2805 · sales@zehnder-rittling.com · www.zehnder-rittling.com© Zehnder Rittling June 2018, English, subject to change without notice

8 1

/8"

2"

T

P

N

R

12

13/1

6"

7 1/8"

M K

7 1/8"

2"

16

1/8"

J

L

20

13/1

6"

6 1/2"

16"

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RFI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

RF-200shown

RF-220shown

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

1 row hotwater supply

and 1 row steam supply

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RF

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

A

6"

3 1

/2"

3"

26

1/2"

Models RF and RFIDimensions and data

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

* Add 6" per extended end selection. See chart for details.

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

8 1

/8"

2"

T

P

N

R

12

13/1

6"

7 1/8"

M K

7 1/8"

2"

16

1/8"

J

L

20

13/1

6"

6 1/2"

16"

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RFI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

RF-200shown

RF-220shown

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

1 row hotwater supply

and 1 row steam supply

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RF

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

A

6"

3 1

/2"

3"

26

1/2"

Models RF and RFIDimensions and data

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

* Add 6" per extended end selection. See chart for details.

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

Dimensions and data Models RF and RFI

Dimensional data

Unit sizeA

B C DStd. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes�� Inlet grill optional�� Unit shown with left hand piping connections and right hand electrical connections as standard�� Right hand piping connections with left hand electrical connections available as an option�� Piping hand determined when facing the air outlet�� All listed dimensions are approximate and are subject to change without notice�� Modifications to the product specifications must be accepted by Zehnder at its base office�� See www.zehnder-rittling.com for any recent updates or changes

Revised June 1, 2018. Zehnder Rittling periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder Rittling's Sales Support staff at 716-827-6510 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder Rittling in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Zehnder Rittling · 100 Rittling Blvd. · Buffalo, NY USA 14220 T 716-827-6510 · F 716-218-2805 · sales@zehnder-rittling.com · www.zehnder-rittling.com© Zehnder Rittling June 2018, English, subject to change without notice

8 1

/8"

2"

T

P

N

R

12

13/1

6"

7 1/8"

M K

7 1/8"

2"

16

1/8"

J

L

20

13/1

6"

6 1/2"

16"

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RFI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

RF-200shown

RF-220shown

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

1 row hotwater supply

and 1 row steam supply

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RF

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

A

6"

3 1

/2"

3"

26

1/2"

Models RF and RFIDimensions and data

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

* Add 6" per extended end selection. See chart for details.

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

8 1

/8"

2"

T

P

N

R

12

13/1

6"

7 1/8"

M K

7 1/8"

2"

16

1/8"

J

L

20

13/1

6"

6 1/2"

16"

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RFI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

RF-200shown

RF-220shown

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

1 row hotwater supply

and 1 row steam supply

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RF

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

A

6"

3 1

/2"

3"

26

1/2"

Models RF and RFIDimensions and data

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

* Add 6" per extended end selection. See chart for details.

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

Dimensions and data Models RF and RFI

Dimensional data

Unit sizeA

B C DStd. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes�� Inlet grill optional�� Unit shown with left hand piping connections and right hand electrical connections as standard�� Right hand piping connections with left hand electrical connections available as an option�� Piping hand determined when facing the air outlet�� All listed dimensions are approximate and are subject to change without notice�� Modifications to the product specifications must be accepted by Zehnder at its base office�� See www.zehnder-rittling.com for any recent updates or changes

Dimensions and data Models RF and RFI

Dimensional data

Unit sizeA

B C DStd. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes� Inlet grill optional� Unit shown with left hand piping connections and right hand electrical connections as standard� Right hand piping connections with left hand electrical connections available as an option� Piping hand determined when facing the air outlet� All listed dimensions are approximate and are subject to change without notice� Modifications to the product specifications must be accepted by Zehnder at its base office� See www.zehnder-rittling.com for any recent updates or changes

Coil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/16

3 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

4 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Revised June 2018. Zehnder periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder's Sales Support staff at 844-934-6337 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Dimensions and data Models RS and RSI

Dimensional data

Unit sizeA

B C DStd. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes� Inlet grill optional� Unit shown with left hand piping connections and right hand electrical connections as standard� Right hand piping connections with left hand electrical connections available as an option� Piping hand determined when facing the air outlet� All listed dimensions are approximate and are subject to change without notice� Modifications to the product specifications must be accepted by Zehnder at its base office� See www.zehnder-rittling.com for any recent updates or changes

Revised June 1, 2018. Zehnder Rittling periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder Rittling's Sales Support staff at 716-827-6510 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder Rittling in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Zehnder Rittling · 100 Rittling Blvd. · Buffalo, NY USA 14220 T 716-827-6510 · F 716-218-2805 · sales@zehnder-rittling.com · www.zehnder-rittling.com© Zehnder Rittling June 2018, English, subject to change without notice

M K

7 1/8"

2"

16

1/8"

J

L

2

0 13

/16"

8

1/8

"

2"

T

P

N

R

12

13/1

6"

7 1/8"

6 1/2"

16"

1 row hotwater supply

steam supplyand 1 row

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RS

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

3 1

/2" 2

9 1/

4"

A

Models RS and RSIDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

water return2, 3 & 4 row hot

1 row hot

steam supply

water supply

2, 3 & 4 row hot

Side view: Model RSI

steam returnand 1 row

water supply

1 row hotwater returnand 1 row

Filter position

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

M K

7 1/8"

2"

16

1/8"

J

L

2

0 13

/16"

8

1/8

"

2"

T

P

N

R

12

13/1

6"

7 1/8"

6 1/2"

16"

1 row hotwater supply

steam supplyand 1 row

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RS

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

3 1

/2" 2

9 1/

4"

A

Models RS and RSIDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

water return2, 3 & 4 row hot

1 row hot

steam supply

water supply

2, 3 & 4 row hot

Side view: Model RSI

steam returnand 1 row

water supply

1 row hotwater returnand 1 row

Filter position

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

Dimensions and data Models RS and RSI

Dimensional data

Unit sizeA

B C DStd. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes�� Inlet grill optional�� Unit shown with left hand piping connections and right hand electrical connections as standard�� Right hand piping connections with left hand electrical connections available as an option�� Piping hand determined when facing the air outlet�� All listed dimensions are approximate and are subject to change without notice�� Modifications to the product specifications must be accepted by Zehnder at its base office�� See www.zehnder-rittling.com for any recent updates or changes

RS-200

shown

Revised June 1, 2018. Zehnder Rittling periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder Rittling's Sales Support staff at 716-827-6510 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder Rittling in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Zehnder Rittling · 100 Rittling Blvd. · Buffalo, NY USA 14220 T 716-827-6510 · F 716-218-2805 · sales@zehnder-rittling.com · www.zehnder-rittling.com© Zehnder Rittling June 2018, English, subject to change without notice

M K

7 1/8"

2"

16

1/8"

J

L

2

0 13

/16"

8

1/8

"

2"

T

P

N

R

12

13/1

6"

7 1/8"

6 1/2"

16"

1 row hotwater supply

steam supplyand 1 row

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RS

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

3 1

/2" 2

9 1/

4"

A

Models RS and RSIDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

water return2, 3 & 4 row hot

1 row hot

steam supply

water supply

2, 3 & 4 row hot

Side view: Model RSI

steam returnand 1 row

water supply

1 row hotwater returnand 1 row

Filter position

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

M K

7 1/8"

2"

16

1/8"

J

L

2

0 13

/16"

8

1/8

"

2"

T

P

N

R

12

13/1

6"

7 1/8"

6 1/2"

16"

1 row hotwater supply

steam supplyand 1 row

steam returnand 1 row

2, 3 & 4 row hotwater return

Side view: Model RS

positionFilter

1 row hotwater return

2, 3 & 4 row hotwater supply

Front view(Front outlet)

3 1

/2" 2

9 1/

4"

A

Models RS and RSIDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/163 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/164 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

water return2, 3 & 4 row hot

1 row hot

steam supply

water supply

2, 3 & 4 row hot

Side view: Model RSI

steam returnand 1 row

water supply

1 row hotwater returnand 1 row

Filter position

(top outlet)

access section

Top view

Fan speedsectionPiping access

Outlet opening centered

6"

D

10"

mounting slot3/8" wd. x 1" lg.

(4 places)

Note: Inlet grille optionalElectricalend pocket

Front view(less front panel)

* 8" B * 8"

C

Dimensions and data Models RS and RSI

Dimensional data

Unit sizeA

B C DStd. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes�� Inlet grill optional�� Unit shown with left hand piping connections and right hand electrical connections as standard�� Right hand piping connections with left hand electrical connections available as an option�� Piping hand determined when facing the air outlet�� All listed dimensions are approximate and are subject to change without notice�� Modifications to the product specifications must be accepted by Zehnder at its base office�� See www.zehnder-rittling.com for any recent updates or changes

RS-200

shown

Coil J K L M N P R T

2 Row 18-1/4 4-7/16 19-1/16 5-3/16 9-7/8 5-3/16 10-11/16 4-7/16

3 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

4 Row 19-1/16 3-1/16 20-3/8 4-13/16 8-9/16 4-13/16 9-7/8 3-1/16

Revised June 2018. Zehnder periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder's Sales Support staff at 844-934-6337 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Dimensions and data Model RW, RWI and RC

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes� Inlet grill optional� Unit shown with left hand piping connections and right hand electrical connections as standard� Right hand piping connections with left hand electrical connections available as an option� Piping hand determined when facing the air outlet� All listed dimensions are approximate and are subject to change without notice� Modifications to the product specifications must be accepted by Zehnder at its base office� See www.zehnder-rittling.com for any recent updates or changes

Dimensional data

Unit sizeA

B CLouvers Ducted opening

Std. 6" Ext. 6" Ext. x2 D E F G

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20 6 18-3/8 5-1/8

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26 6 24-3/16 5-1/8

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32 6 30-3/16 5-1/8

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44 6 42-3/16 5-1/8

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50 6 48-3/16 5-1/8

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58 6 56-3/16 5-1/8

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68 6 66-3/16 5-1/8

Revised June 1, 2018. Zehnder Rittling periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder Rittling's Sales Support staff at 716-827-6510 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder Rittling in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Zehnder Rittling · 100 Rittling Blvd. · Buffalo, NY USA 14220 T 716-827-6510 · F 716-218-2805 · sales@zehnder-rittling.com · www.zehnder-rittling.com© Zehnder Rittling June 2018, English, subject to change without notice

4"

16"

M K

7 1/8"

2"

J

L

18

3/8"

13

5/8"

2"

T

P

N

R

7 1/8"

5 5

/8"

10

3/8"

3/8" wd. x 1" lg.

(4 places) mounting slot

Electricalend pocket

Front view(less front panel)

C

* 8" B * 8"

(top outlet)

Piping access

Top view

section

Outlet opening centered

Fan speedaccess section

6"

D

10"

RW-280shown

Models RW, RWI and RCDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/163 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/164 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

RC-360shown

1 row hotwater supply

Filterpositions

and 1 row steam supply

and 1 row steam return

Side view: Model RW and RC

2, 3 & 4 row hotwater return

1 row hotwater return

2, 3 & 4 row hotwater supply

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RWI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

Front view(Front outlet)

6"

24"

A 3"

2 3/8"

6"

4"

16"

M K

7 1/8"

2"

J

L

18

3/8"

13

5/8"

2"

T

P

N

R

7 1/8"

5 5

/8"

10

3/8"

3/8" wd. x 1" lg.

(4 places) mounting slot

Electricalend pocket

Front view(less front panel)

C

* 8" B * 8"

(top outlet)

Piping access

Top view

section

Outlet opening centered

Fan speedaccess section

6"

D

10"

RW-280shown

Models RW, RWI and RCDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/163 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/164 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

RC-360shown

1 row hotwater supply

Filterpositions

and 1 row steam supply

and 1 row steam return

Side view: Model RW and RC

2, 3 & 4 row hotwater return

1 row hotwater return

2, 3 & 4 row hotwater supply

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RWI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

Front view(Front outlet)

6"

24"

A 3"

2 3/8"

6"

Dimensions and data Model RW, RWI and RC

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes�� Inlet grill optional�� Unit shown with left hand piping connections and right hand electrical connections as standard�� Right hand piping connections with left hand electrical connections available as an option�� Piping hand determined when facing the air outlet�� All listed dimensions are approximate and are subject to change without notice�� Modifications to the product specifications must be accepted by Zehnder at its base office�� See www.zehnder-rittling.com for any recent updates or changes

Dimensional data

Unit sizeA

B CLouvers Ducted opening

Std. 6" Ext. 6" Ext. x2 D E F G

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20 6 18-3/8 5-1/8

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26 6 24-3/16 5-1/8

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32 6 30-3/16 5-1/8

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44 6 42-3/16 5-1/8

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50 6 48-3/16 5-1/8

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58 6 56-3/16 5-1/8

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68 6 66-3/16 5-1/8

Revised June 1, 2018. Zehnder Rittling periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder Rittling's Sales Support staff at 716-827-6510 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder Rittling in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Zehnder Rittling · 100 Rittling Blvd. · Buffalo, NY USA 14220 T 716-827-6510 · F 716-218-2805 · sales@zehnder-rittling.com · www.zehnder-rittling.com© Zehnder Rittling June 2018, English, subject to change without notice

4"

16"

M K

7 1/8"

2"

J

L

18

3/8"

13

5/8"

2"

T

P

N

R

7 1/8"

5 5

/8"

10

3/8"

3/8" wd. x 1" lg.

(4 places) mounting slot

Electricalend pocket

Front view(less front panel)

C

* 8" B * 8"

(top outlet)

Piping access

Top view

section

Outlet opening centered

Fan speedaccess section

6"

D

10"

RW-280shown

Models RW, RWI and RCDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/163 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/164 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

RC-360shown

1 row hotwater supply

Filterpositions

and 1 row steam supply

and 1 row steam return

Side view: Model RW and RC

2, 3 & 4 row hotwater return

1 row hotwater return

2, 3 & 4 row hotwater supply

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RWI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

Front view(Front outlet)

6"

24"

A 3"

2 3/8"

6"

4"

16"

M K

7 1/8"

2"

J

L

18

3/8"

13

5/8"

2"

T

P

N

R

7 1/8"

5 5

/8"

10

3/8"

3/8" wd. x 1" lg.

(4 places) mounting slot

Electricalend pocket

Front view(less front panel)

C

* 8" B * 8"

(top outlet)

Piping access

Top view

section

Outlet opening centered

Fan speedaccess section

6"

D

10"

RW-280shown

Models RW, RWI and RCDimensions and data

Dimensional dataCoil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/163 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/164 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

Dimensional data

Unit size A B C DStd. 6" Ext02 38-3/16 44-3/16 22-3/16 23-5/8 2003 44-3/16 50-3/16 28-3/16 29-5/8 2604 50-3/16 56-3/16 34-3/16 35-5/8 3206 62-3/16 68-3/16 46-3/16 47-5/8 4408 68-3/16 74-3/16 52-3/16 53-5/8 5010 76-3/16 82-3/16 60-3/16 61-5/8 5812 86-3/16 92-3/16 70-3/16 71-5/8 68

* Add 6" per extended end selection. See chart for details.

RC-360shown

1 row hotwater supply

Filterpositions

and 1 row steam supply

and 1 row steam return

Side view: Model RW and RC

2, 3 & 4 row hotwater return

1 row hotwater return

2, 3 & 4 row hotwater supply

2, 3 & 4 row hot

water supply

water return

1 row hot

and 1 row water return

Side view: Model RWI

steam supply

steam returnand 1 row

water supply2, 3 & 4 row hot

1 row hot

Filter positions

Front view(Front outlet)

6"

24"

A 3"

2 3/8"

6"

Dimensions and data Model RW, RWI and RC

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes�� Inlet grill optional�� Unit shown with left hand piping connections and right hand electrical connections as standard�� Right hand piping connections with left hand electrical connections available as an option�� Piping hand determined when facing the air outlet�� All listed dimensions are approximate and are subject to change without notice�� Modifications to the product specifications must be accepted by Zehnder at its base office�� See www.zehnder-rittling.com for any recent updates or changes

Dimensional data

Unit sizeA

B CLouvers Ducted opening

Std. 6" Ext. 6" Ext. x2 D E F G

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20 6 18-3/8 5-1/8

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26 6 24-3/16 5-1/8

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32 6 30-3/16 5-1/8

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44 6 42-3/16 5-1/8

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50 6 48-3/16 5-1/8

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58 6 56-3/16 5-1/8

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68 6 66-3/16 5-1/8

Coil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/16

3 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 4-13/16 3-1/16

4 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 4-13/16 3-1/16

Revised June 2018. Zehnder periodically makes changes to the design and/or specifications of its products. As a result, the design and specifications of each product at the time of order may be different than as described herein. Please contact Zehnder's Sales Support staff at 844-934-6337 for specific information on current design and specifications. Designs, specifications and other information contained herein are not express warranties, which are only as expressly set forth by Zehnder in its terms and conditions of sale. The latest version of this document is available at www.zehnder-rittling.com.

Rittling Cabinet Unit HeaterSubmittal Data

Dimensional data

Unit size

AB C

Louvers Duct opening H

Std. 6" Ext. 6" Ext. x2 D E F G Std. 6" Ext. 6" Ext. x2

02 38-3/16 44-3/16 50-3/16 22-3/16 24 20 6 18-3/8 5-1/8 41-3/16 47-3/16 53-3/16

03 44-3/16 50-3/16 56-3/16 28-3/16 30 26 6 24-3/16 5-1/8 47-3/16 53-3/16 59-3/16

04 50-3/16 56-3/16 62-3/16 34-3/16 36 32 6 30-3/16 5-1/8 53-3/16 59-3/16 65-3/16

06 62-3/16 68-3/16 74-3/16 46-3/16 48 44 6 42-3/16 5-1/8 65-3/16 71-3/16 77-3/16

08 68-3/16 74-3/16 80-3/16 52-3/16 54 50 6 48-3/16 5-1/8 71-3/16 77-3/16 83-3/16

10 76-3/16 82-3/16 88-3/16 60-3/16 62 58 6 56-3/16 5-1/8 79-3/16 85-3/16 91-3/16

12 86-3/16 92-3/16 98-3/16 70-3/16 72 68 6 66-3/16 5-1/8 89-3/16 95-3/16 101-3/16

Dimensions and data Models RRW, RFRW, RRC, RFRC, RRWI & RFRWI

Notes: � 1 and 2 row coil supply and return 1/2" nominal (5/8" OD) all sizes� Unit shown with left hand piping connections and right hand electrical connections as standard� Right hand piping connections with left hand electrical connections available as an option� Piping hand determined when facing the air outlet� All listed dimensions are approximate and are subject to change without notice� Modifications to the product specifications must be accepted by Zehnder at its base office� See www.zehnder-rittling.com for any recent updates or changes

4"

16"

2"

T

P

N

R

7 1/8"

5 5

/8"

10

3/8"

M K

7 1/8"

2"

J

L

18

3/8"

13

5/8"

3/8" wd. x 1" lg.

(4 places) mounting slot

Electricalend pocket

Front view(less front panel)

C

* 8" B * 8"

RFRC-410shown

Front view(Front outlet)

6"

A + 3"

24"

3"

6"

A

2 3/8"

27"

1 row hot

2, 3 & 4 row hot

water supply2, 3 & 4 row hot

steam supply

water supplyand 1 row steam return

Side view: Model RRWI and RFRWI

water return

1 row hotwater returnand 1 row

Filter position

RFRW-340shown

Top view

Piping

(top outlet)

Outlet opening centered

sectionFan speedsection D or F

10"

E or G

1 row hotwater supply

Filterpositions

and 1 row steam supply

and 1 row steam return

Side view: Model RRW, RFRW, RRC and RFRC

2, 3 & 4 row hotwater return

1 row hotwater return

2, 3 & 4 row hotwater supply

Models RRW, RFRW, RRC,RFRC, RRWI and RFRWI

Dimensions and data

Dimensional dataUnit size

A B C Louvers Duct openingStd. 6" Ext. D E F G

02 38-3/16 44-3/16 22-3/16 23-5/8 20 6 18-3/16 5-1/803 44-3/16 50-3/16 28-3/16 29-5/8 26 6 24-3/16 5-1/804 50-3/16 56-3/16 34-3/16 35-5/8 32 6 30-3/16 5-1/806 62-3/16 68-3/16 46-3/16 47-5/8 44 6 42-3/16 5-1/808 68-3/16 74-3/16 52-3/16 53-5/8 50 6 48-3/16 5-1/810 76-3/16 82-3/16 60-3/16 61-5/8 58 6 56-3/16 5-1/812 86-3/16 92-3/16 70-3/16 71-5/8 68 6 66-3/16 5-1/8

Dimensional dataCoil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/163 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/164 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A" and "H".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

* Add 6" per extended end selection. See chart for details.* Add 6" per extended end selection. See chart for details.

Dimensional dataUnit size

A B C Louvers Duct openingStd. 6" Ext. D E F G

02 38-3/16 44-3/16 22-3/16 23-5/8 20 6 18-3/16 5-1/803 44-3/16 50-3/16 28-3/16 29-5/8 26 6 24-3/16 5-1/804 50-3/16 56-3/16 34-3/16 35-5/8 32 6 30-3/16 5-1/806 62-3/16 68-3/16 46-3/16 47-5/8 44 6 42-3/16 5-1/808 68-3/16 74-3/16 52-3/16 53-5/8 50 6 48-3/16 5-1/810 76-3/16 82-3/16 60-3/16 61-5/8 58 6 56-3/16 5-1/812 86-3/16 92-3/16 70-3/16 71-5/8 68 6 66-3/16 5-1/8

4"

16"

2"

T

P

N

R

7 1/8"

5 5

/8"

10

3/8"

M K

7 1/8"

2"

J

L

18

3/8"

13

5/8"

3/8" wd. x 1" lg.

(4 places) mounting slot

Electricalend pocket

Front view(less front panel)

C

* 8" B * 8"

RFRC-410shown

Front view(Front outlet)

6"

A + 3"

24"

3"

6"

A

2 3/8"

27"

1 row hot

2, 3 & 4 row hot

water supply2, 3 & 4 row hot

steam supply

water supplyand 1 row steam return

Side view: Model RRWI and RFRWI

water return

1 row hotwater returnand 1 row

Filter position

RFRW-340shown

Top view

Piping

(top outlet)

Outlet opening centered

sectionFan speedsection D or F

10"

E or G

1 row hotwater supply

Filterpositions

and 1 row steam supply

and 1 row steam return

Side view: Model RRW, RFRW, RRC and RFRC

2, 3 & 4 row hotwater return

1 row hotwater return

2, 3 & 4 row hotwater supply

Models RRW, RFRW, RRC,RFRC, RRWI and RFRWI

Dimensions and data

Dimensional dataUnit size

A B C Louvers Duct openingStd. 6" Ext. D E F G

02 38-3/16 44-3/16 22-3/16 23-5/8 20 6 18-3/16 5-1/803 44-3/16 50-3/16 28-3/16 29-5/8 26 6 24-3/16 5-1/804 50-3/16 56-3/16 34-3/16 35-5/8 32 6 30-3/16 5-1/806 62-3/16 68-3/16 46-3/16 47-5/8 44 6 42-3/16 5-1/808 68-3/16 74-3/16 52-3/16 53-5/8 50 6 48-3/16 5-1/810 76-3/16 82-3/16 60-3/16 61-5/8 58 6 56-3/16 5-1/812 86-3/16 92-3/16 70-3/16 71-5/8 68 6 66-3/16 5-1/8

Dimensional dataCoil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/163 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/164 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 7-7/16 3-1/16

Notes:- 1, 2, 3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.- Left hand piping connections shown, right hand electrical as standard. Piping hand determined when facing the air outlet.- Unit length: for 6" extended end pocket add 6" to dimension "A" and "H".- All listed dimensions are approximate and are subject to change without notice. Modifications to the product specificstions must be acceptrd by Zehnder at its base office.

* Add 6" per extended end selection. See chart for details.* Add 6" per extended end selection. See chart for details.

Dimensional dataUnit size

A B C Louvers Duct openingStd. 6" Ext. D E F G

02 38-3/16 44-3/16 22-3/16 23-5/8 20 6 18-3/16 5-1/803 44-3/16 50-3/16 28-3/16 29-5/8 26 6 24-3/16 5-1/804 50-3/16 56-3/16 34-3/16 35-5/8 32 6 30-3/16 5-1/806 62-3/16 68-3/16 46-3/16 47-5/8 44 6 42-3/16 5-1/808 68-3/16 74-3/16 52-3/16 53-5/8 50 6 48-3/16 5-1/810 76-3/16 82-3/16 60-3/16 61-5/8 58 6 56-3/16 5-1/812 86-3/16 92-3/16 70-3/16 71-5/8 68 6 66-3/16 5-1/8

Coil J K L M N P R T

2 Row 15-3/4 4-7/16 16-9/16 5-3/16 7-7/16 5-3/16 8-1/4 4-7/16

3 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 4-13/16 3-1/16

4 Row 16-9/16 3-1/16 17-1/8 4-13/16 6-1/8 4-13/16 4-13/16 3-1/16