Unitary products group LL-15 Bedienungsanleitung

INSTALLATION

MANUAL

CAUTION: READ ALL SAFETY GUIDES BEFORE YOU

START TO INSTALL UNIT.

SAVE THIS MANUAL

SPLIT-SYSTEM

AIR COOLED

EVAPORATOR BLOWER

MODELS: LL-15, LL-20

66339-BIM-C-0206

LL-20

LL-15

CONTENTS

NOMENCLATURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

NOTES, CAUTIONS AND WARNINGS. . . . . . . . . . . . . .4

REPLACEMENT PARTS. . . . . . . . . . . . . . . . . . . . . . . . .4

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

LIMITATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

FOR A COMPLETE TABLE OF CONTENTS, SEE FOLLOWING

PAGE.

66339-BIM-C-0206

2Unitary Products Group

IMPROPER INSTALLATION MAY CREATE A

CONDITION WHERE THE OPERATION OF

THE PRODUCT COULD CAUSE PER-

SONAL INJURY OR PROPERTY DAMAGE.

IMPROPER INSTALLATION, ADJUSTMENT,

ALTERATION, SERVICE OR MAINTE-

NANCE CAN CAUSE INJURY OR PROP-

ERTY DAMAGE. REFER TO THIS MANUAL

FOR ASSISTANCE OR ADDITIONAL

INFORMATION, CONSULT A QUALIFIED

INSTALLER, SERVICE AGENCY OR THE

GAS SUPPLIER.

THIS PRODUCT MUST BE INSTALLED IN

STRICT COMPLIANCE WITH THE

ENCLOSED INSTALLATION INSTRUC-

TIONS AND ANY APPLICABLE LOCAL,

STATE, AND NATIONAL CODES INCLUD-

ING BUT NOT LIMITED TO, BUILDING,

ELECTRICAL AND MECHANICAL CODES.

TABLE OF CONTENTS

NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

NOTES, CAUTIONS AND WARNINGS. . . . . . . . . . . . . . . . 4

REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

LIMITATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

BLOWER MOTOR MOUNTING LOCATIONS. . . . . . . . . . . 5

MOTOR MOUNT ARRANGEMENTS. . . . . . . . . . . . . . . . . . 5

AIR DISCHARGE CONVERSION . . . . . . . . . . . . . . . . . . . . 6

AIR DISCHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

UNIT INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

RIGGING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

MOUNTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

DUCT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

INSULATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

SUPPLY AIR DUCTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

RETURN AIR DUCT ANGLES . . . . . . . . . . . . . . . . . . . . 11

DRAIN CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 11

REFRIGERANT MAINS . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

EVAPORATOR SECTION PIPING . . . . . . . . . . . . . . . . . 12

SUPPLY AIR BLOWER ADJUSTMENT. . . . . . . . . . . . . . . 12

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . 14

INDOOR UNIT ELECTRICAL RATINGS . . . . . . . . . . . . . . 14

LIST OF FIGURES

Fig. Pg.

1 Product Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Factory Motor Mounting Position. . . . . . . . . . . . . . . . . 5

3 Typical Motor Mounting Assembly. . . . . . . . . . . . . . . . 5

4 Ll-15 Motor Arrangements. . . . . . . . . . . . . . . . . . . . . . 6

5 Ll-20 Motor Arrangements. . . . . . . . . . . . . . . . . . . . . . 7

6 Vertical Airflow Arrangements . . . . . . . . . . . . . . . . . . . 8

7 Horizontal Airflow Arrangements . . . . . . . . . . . . . . . . . 8

8 Horizontal Application Corner Weights . . . . . . . . . . . . 9

9 Vertical Application Corner Weights

(See Table On Page 9 For Weights) . . . . . . . . . . . . . 10

10 Suggested Method For Connecting Ductwork . . . . . . 11

11 Recommended Drain Piping . . . . . . . . . . . . . . . . . . . 11

12 Hole Locations For Pressure Drop Readings

(15 Ton) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

13 Hole Locations For Pressure Drop Readings

(20 Ton) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

14 Pressure Drop Across Indoor Coil (15 Ton). . . . . . . . 15

15 Pressure Drop Across Indoor Coil (20 Ton). . . . . . . . 15

16 15 Ton Blower Performance . . . . . . . . . . . . . . . . . . . 17

17 20 Ton Blower Performance . . . . . . . . . . . . . . . . . . . 17

18 Unit Dimensions Ll-15 And Ll-20 . . . . . . . . . . . . . . . . 18

19 Piping And Electrical Connection Locations . . . . . . . 19

LIST OF TABLES

Tbl. Pg.

1 Physical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 approximate rpm chart. . . . . . . . . . . . . . . . . . . . . . . . 14

3 LL-15 15 Ton AirFlow. . . . . . . . . . . . . . . . . . . . . . . . . 16

4 LL-20 20 Ton Airflow . . . . . . . . . . . . . . . . . . . . . . . . . 16

5 Unit Dimensions lL-15 and lL-20 . . . . . . . . . . . . . . . . 18

6 Piping And Electrical Connection Sizes. . . . . . . . . . . 19

66339-BIM-C-0206

Unitary Products Group 3

FIGURE 1 - Product Nomenclature

INDOOR SPLIT UPG PRODUCT NOMENCLATURE

LL -15 C 00 A T A AA 1 A

Model # Model Number

Description Options

L Product Category L = Air Handling Unit - Cooling F = Air Handling Unit - Heat Pump

F Product Identifier F = R-22 Standard Efficiency 2-Pipe

L = R-22 Standard Efficiency 4-Pipe

-15 Nominal Cooling

Capacity

MBH

-15 = 15 Ton

-20 = 20 Ton

CHeatType C = Cooling Only

00 Nominal Heating

Capacity 00 = No Heat Installed

A Airflow Options A = Standard Motor

TVoltage W = 460-3-60

S = 208/230-460-3-60 X = 575-3-60

A Factory Options A = None

AA Special Options AA = None

1 Generation 1 = First Generation 2 = Second Generation

A Product Style A = Style A B = Style B

66339-BIM-C-0206

4Unitary Products Group

GENERAL

The LL-15 and LL-20 evaporator units are designed for

use with the LL-15 and LL-20 Series condensing units.

Each unit consists of a coil section and a blower sec-

tion that are factory assembled and shipped. As shown

in arrangement 1 of figure 5, these sections may be

rearranged in the field for other air discharge patterns.

See figures 5, 6 and 7.

NOTES, CAUTIONS AND WARNINGS

Installer should pay particular attention to the words:

NOTE, CAUTION and WARNING. Notes are intended

to clarify or make 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 han-

dled properly.

REPLACEMENT PARTS

Refer to parts manual for complete listing of replace-

ment parts on this equipment. The above forms and all

other forms referenced on this instruction may be

ordered from;

Standard Register

Telephone: 877-318-9675

Toll Free Fax: 877-379-7920

INSPECTION

As soon as a unit is received, it should be inspected for

possible damage during transit. If damage is evident,

the extent of the damage should be noted on the car-

rier’s freight bill. A separate request for inspection by

the carrier’s agent should be made in writing.

TABLE 1: PHYSICAL DATA

DESCRIPTION MODEL

LL-15 LL-20

EVAPORATOR COIL

Rows Deep X Rows High

Finned Length

Face Area, Feet

Tube (copper) OD, Inches

Fins (aluminum) per 1 inch

3 x 32

18.4

3/8

3 x 40

22.5

3/8

Piping Connections, Inches Liquid, Inches 5/8 5/8

Suction, Inches 1 1/8 1 3/8

CENTRIFUGAL BLOWERS (2

PER UNIT) Diameter X Width, Inches (Forward Curved) 15 X 12 18 X 18

FILTERS (THROWAWAY)

Size and Quantity Per Model,

Inches

16 X 25 X 2

20 X 20 X 2

20 X 24 X 2

20 X 25 X 2

25 X 25 X 2

Total Face Area, Feet 26.7 34.7

OPERATING CHARGE

(LBS 4-22) System 1

System 2 15.0

15.0 17.0

17.0

COMPONENT WEIGHT

Basic Unit (Less Motor & Drives)

Shipping Weight (lbs)

Operating Weight (lbs)

720

830

990

1115

Accessories

Hot Water Coil

Steam Coil

Supply Air Plenum

Return Air Grille

165

175

185

225

210

N/A

Blower Motor (1750 RPM)

(Field Installed) 120 (5 hp)

47 (3 hp) 120 (5 hp)

66339-BIM-C-0206

Unitary Products Group 5

LIMITATIONS

This unit must be installed in accordance with all

national and local safety codes. If no local codes apply,

installation must conform to the appropriate National

Code. The unit is designed to meet National Safety

Code Standards. If components are to be added to a

unit to meet local codes, they are to be installed at the

dealer’s and/or the customer’s expense.

BLOWER MOTOR MOUNTING LOCATIONS

Units are shipped from the factory less motor and

drives. The blower motor and drive packages are

ordered and shipped separately for field mounting.

MOTOR MOUNT ARRANGEMENTS

The motor mounting arrangement can be changed to

allow motor access based on the airflow arrangement

required. The recommended motor location for each

blower arrangement is as follows.

The units are shipped with the motor mount as shown

in figure 3.

If this is the desired position, the motor mounting

assembly is already in the correct position and the

motor and drive package can be installed without mod-

ifications.

FIGURE 2 - FACTORY MOTOR MOUNTING POSITION

MOTOR MOUNTING

CHANNELS ARE

ALWAYS SHIPPED

IN THIS LOCATION

FOR LL-20 UNITS

MOTOR MOUNTING

CHANNELS ARE

ALWAYS SHIPPED

IN THIS LOCATION

FOR LL-15 UNITS

FIGURE 3 - TYPICAL MOTOR MOUNTING ASSEMBLY

66339-BIM-C-0206

6Unitary Products Group

NOTE: The blower section must be lifted off the evap-

orator section to gain access to the mounting

channel fasteners. Since these sections have

to be repositioned for the arrangements 2

through 10 and 12 of figures 4 and 5, the

motor mounting assembly should be relocated

before the two sections are rejoined.

AIR DISCHARGE CONVERSION

AIR DISCHARGE

The units are shipped for upflow operation, but may be

converted for any of the illustrated air discharge pat-

terns shown in figures 5 and 6. Convert as follows:

1. Remove the panels from the blower section.

2. Remove the Phillips machine screws located inside

casing corner angles that hold the coil and blower

sections together.

3. Rotate the blower section for the desired air dis-

charge pattern.

NOTE: Before proceeding to step 4, see the section

on the blower motor mounting locations and

mount the blower motor in the desired position.

4. If accessory heating coils are used, mount heating

coil between cooling coil and blower sections.

Screw fastening locations are the same for all sec-

tions and heating accessories. If heating coils are

not used, fasten coil section to blower section with

machine screws removed in step 2.

5. Before replacing panels, see duct connections and

drain connections.

6. Replace panels.

FIGURE 4 - LL-15 MOTOR ARRANGEMENTS

66339-BIM-C-0206

Unitary Products Group 7

FIGURE 5 - LL-20 MOTOR ARRANGEMENTS

ARRANGEMENT 1, 4, 8, OR 11

ARRANGEMENT 3, 5 OR 10

ARRANGEMENT 2, 6 OR 7

NOTE: Since the motor mounting assembly can-

not be secured to the panel with the

blower openings, the motor cannot be

installed in any of the normally recom-

mended bottom positions.

ARRANGEMENT 9 OR 12

66339-BIM-C-0206

8Unitary Products Group

FIGURE 6 - VERTICAL AIRFLOW ARRANGEMENTS

AIR

BLOWER

EVAPORATOR

COIL AIR

AIR

* IF REQUIRED, SOME AIR CAN

BE BROUGHT THROUGH THE

BOTTOM OF THE EVAPORATO

SECTION.

FIGURE 7 - HORIZONTAL AIRFLOW ARRANGEMENTS

AIR

78 9

11 12

66339-BIM-C-0206

Unitary Products Group 9

UNIT INSTALLATION

LOCATION

The evaporator blowers are not designed for outdoor

installation. They must be located inside the building

structure, either inside or outside the conditioned

space where they are protected from rain and other

such moisture.

The unit should be located as close to the condensing

unit as practical and positioned to minimize bends in

the refrigerant piping.

Units being installed vertically or horizontally can be set

directly on a floor or platform, or supported by metal or

wooden beams.

Units being installed horizontally can be suspended

from above. Refer to the installation instructions of the

appropriate horizontal suspension kit.

RIGGING

Care must be taken when moving the unit. Do not

remove any packaging until the unit is near the place of

installation. SPREADER BARS SHOULD BE USED

BETWEEN THE SLINGS TO PREVENT CRUSHING

THE UNIT FRAME OR PANELS.

When preparing to move the unit, always determine the

center of gravity of the unit in order to equally distribute

the weight. Rig the unit by attaching chain or cable

slings around the bottom skid. A lift truck may be used

to raise a unit to a suspended location. Refer to table 2

for the total unit operating weight.

CLEARANCES

A 25-inch clearance is required on the end with the pip-

ing connections and the supply air blower motor to

properly service and maintain the unit and to replace

the filters.

Some clearance will also be required for the duct and

power wire connections. A clearance equal to the unit

width is required on one end of the unit if the blower

shaft or evaporator coil is to be replaced without mov-

ing the unit.

MOUNTING

The evaporator blower may be suspended from the

joists with isolation type hangers or hooks. A suspen-

sion accessory, which includes three suspension chan-

nels and hardware, may be ordered separately. The

corner weights for each unit are shown on pages 9 and

10.

Unit Size Position Shipping

Weight Operating

Weight ABCD Unit

Length Unit

Width

15 Ton Indoor Horizontal 720 830 155 187 207 171 89.5 59

15 Ton Indoor Vertical 720 830 172 194 188 166 89.5 29.5

20 Ton Indoor Horizontal 990 1115 230 345 249 166 100 74

20 Ton Indoor Vertical 990 1115 263 238 232 256 100 36.5

FIGURE 8 - HORIZONTAL APPLICATION CORNER WEIGHTS

20 Ton Motor Location

Return Air

Horizontal Application Corner Weights

15 Ton Motor Location

Supply Air

66339-BIM-C-0206

10 Unitary Products Group

DUCT CONNECTIONS

Ductwork should always be suspended with hangers or

supported by legs. It should never be fastened directly

to the building structure.

Allow clearance around ducts for safety in the handling

of heated air and for insulation when required.

INSULATION

Ductwork insulation should meet the following criteria:

1. Be used when ducts pass through an uncondi-

tioned space in the cooling season or through an

unheated space during the heating season.

2. Include a vapor barrier around the outside to pre-

vent the absorption of moisture.

3. Be no less than 2 inches thick with the weather-

proof coating when applied to ducts exposed to

outdoor conditions.

SUPPLY AIR DUCTS

See figure 8 for suggested method of connecting sup-

ply air ductwork. Non-flammable material collars

should be used to minimize the transmission of noise

and/or vibration.

FIGURE 9 - VERTICAL APPLICATION CORNER WEIGHTS

(See Table on page 9 for Weights)

Supply Air

15 Ton

Motor Location

20 Ton Motor

Location

Return Air

(Rear Corner)

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