ACCESSORY KIT INSTALLATION INSTRUCTIONS

035-16649-001-C-1102 ACCESSORY KIT INSTALLATION INSTRUCTIONS Hot Water and Steam Coil Accessories For 5 Thru 50 Ton Split System Indoor Units TABLE ...
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035-16649-001-C-1102

ACCESSORY KIT INSTALLATION INSTRUCTIONS Hot Water and Steam Coil Accessories For 5 Thru 50 Ton Split System Indoor Units

TABLE 1: HOT WATER AND STEAM COIL ACCESSORY REFERENCE INFORMATION HOT WATER ACCESSORY MODEL #

INSTALLATION FIGURE #

1HW0450

2

K*EU060

1HW0451

2

K*EU090,120

LA090

K*ES120

K*BU090,120

1HW0452

3

K*EU180

LA120

K*BU180

LF-10

1HW0405

3

L*EU240

L*BU240

LB180

LL-15

1HW0406

3

LB240

LL-20

LA300

LB360

1HW0407

3

LB480

LB600

LL-40

LL-50

STEAM ACCESSORY MODEL #

INSTALLATION FIGURE #

1NF0450

2

K*EU060

1NF0451

2

K*EU090,120

LA090

K*ES120

K*BU090,120

1NF0452

3

K*EU180

LA120

K*BU180

LF-10

1NF0453

3

L*EU240

LB180

L*BU240

LL-15

1NF0454

3

LB240

LL-20

LA300

LB360

INDOOR UNIT MODEL # K*BU060 LF-07

K*BS120

LF-25

LL-30

LF-07

K*BS120

LF-25

LL-30

INDOOR UNIT MODEL # K*BU060

GENERAL The hot water coils can be drained and have two rows of 1/2" copper tubes. They also have twelve aluminum fins per inch, a casing finished to match the exterior of the basic unit, but no water control valve. The coils can slide out of their casings for easy field installation over the return air opening of the Figure 2 units, and between the coil and the blower sections of the Figure 3 units. All of the steam coils are the steam distributing type. They have one row of 1" copper tubes, each containing a 5/8" copper tube to distribute the steam evenly along its length. The coils have eight aluminum fins per inch, a casing that is finished to match the exterior of the basic unit, but no steam valve. The coils can slide out of their casings for easy field installation and are pitched in their casings to facilitate condensate drainage.

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FIGURE 1 : TYPICAL COIL

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Position the heating coil in (or on) the unit as shown.

CAUTION 1.

Since hot water and steam coil accessories for Figure 2 units will be located before the unit filters, a field-supplied filter rack will be required.

2.

Hot water coils may NOT be used for steam under any circumstances.

3.

Steam coils have a “two way” pitch for both vertical and horizontal applications. The condensate connections must be positioned at the lowest point.

4.

Steam pressure must be limited to 25 psig. If available steam pressure is greater than 25 psig, a pressure regulating valve must be installed and set for this maximum pressure.

2.

Remove the end panels.

3.

Remove and discard all shipping angles and/or screws and packing so coil is free to move within the casing.

4.

Install the four nut retainers, position support angles and secure the sections together with screws as indicated.

5.

Replace the end panels.

REMOVING COIL 1.

Disconnect the piping.

2.

The heating coil may be removed from either side of the coil casing. Remove only the end panel and support angles on the side from which the coil is to be removed.

INSTALLATION 1.

Refer to Table 1 and Figures 2 or 3 and select the appropriate illustration. •

Figure 2 is for horizontal and vertical units with the heating coil installed on the return air opening.



Figure 3 is for horizontal and vertical units with the heating coil installed between the evaporator and blower sections.

Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. Notes are intended to clarify or make the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury and/or equipment damage may result if installation procedure is not handled properly.

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TABLE 2: HOT WATER COILS - PHYSICAL DATA Water Coil Dimensions

Coil Model

A

B

C

D

E

F

G

H*

J*

1HW0450†

36

21-7/8

5

1-11/16

2-3/4

3-3/8

6-1/4

1 NPTE

1 NPTE



1HW0451

52

25

5

1-11/16

2-3/8

3-3/8

5-7/8

1 NPTE

1 NPTE

1HW0452‡

60-3/4

32-1/4

6

2-1/8

3-5/16

3-13/16

6-9/16

1-3/8 O. D.

1-3/8 O. D.

1HW0405‡

89-1/2

30-3/4

6

2-1/8

3-3/8

3-13/16

6-11/16

1-3/8 O. D.

1-3/8 O. D.

1HW0406‡

100-1/8

37-7/8

6

2-1/8

3-3/8

3-13/16

6-11/16

1-3/8 O. D.

1-3/8 O. D.



103-1/8

45-1/4

6

2

3-3/8

3-15/16

6-7/16

1-5/8 O. D.

1-5/8 O. D.

1HW0407

*. All NPTE connections are brass. All O.D. connections are copper. †. Installs over the return air opening of the unit in front of the filters on Figure 2 units. Refer to the respective unit installation instruction for Duct Flange Dimensions. ‡. Installs between the evaporator section and the blower section on Figure 3 units.

TABLE 3: STEAM COILS - PHYSICAL DATA Steam Coil Dimensions

Coil Model

A

B

C

D



E

F

G*

1NF0450

36

21-7/8

5

1NF0451†

52

25

5

2-1/2

2-5/8

10-5/8

1-1/2 NPTE

1-1/2 NPTE

2-1/2

2-5/8

13-5/8

1-1/2 NPTE

1-1/2 NPTE

1NF0452‡

60-3/4

32-1/4

6

3-5/16

4-1/8



1NF0453

89-1/2

30-3/4

6

3-7/16

3-15/16

18-1/8

1-1/2 NPTE

1-1/2 NPTE

14-15/16

1-1/2 NPTE

1-1/2 NPTE

1NF0454‡

100-1/8

37-7/8

6

3-7/16

4-5/16

18-5/16

2 NPTE

1-1/2 NPTE

H*

*. All NPTE connections are brass. †. Installs over the return air opening of the unit in front of the filters on Figure 2 units. Refer to the respective unit installation instruction for Duct Flange Dimensions. ‡. Installs between the evaporator section and the blower section on Figure 3 units.

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FIGURE 2 : COIL INSTALLATION IN SPLIT-SYSTEM INDOOR UNITS

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FIGURE 3 : COIL INSTALLATION IN SPLIT-SYSTEM INDOOR UNITS

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Subject to change without notice. Printed in U.S.A. Copyright © by Unitary Products Group 2002. All rights reserved.

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Supersedes: 035-16649-000-B-0202

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035-16649-001-C-1102

Norman OK 73069