Table of Contents
Advertisement
Quick Links
INSTALLATION
MANUAL
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.
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
LL-20
LL-15
66339-BIM-C-0206
Advertisement
Table of Contents
Related Manuals for Unitary products group LL-15
Summary of Contents for Unitary products group LL-15
- Page 1 AIR COOLED MANUAL EVAPORATOR BLOWER MODELS: LL-15, LL-20 CONTENTS NOMENCLATURE ......3 GENERAL .
-
Page 2: Table Of Contents
......14 LL-15 15 Ton AirFlow......16 LL-20 20 Ton Airflow . -
Page 3: Nomenclature
S = 208/230-460-3-60 Factory Options A = None Special Options AA = None Generation 1 = First Generation 2 = Second Generation Product Style A = Style A B = Style B FIGURE 1 - Product Nomenclature Unitary Products Group... -
Page 4: General
GENERAL damage may result if installation procedure is not han- dled properly. The LL-15 and LL-20 evaporator units are designed for REPLACEMENT PARTS use with the LL-15 and LL-20 Series condensing units. Refer to parts manual for complete listing of replace- ment parts on this equipment. -
Page 5: Limitations
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 2 - FACTORY MOTOR MOUNTING POSITION FIGURE 3 - TYPICAL MOTOR MOUNTING ASSEMBLY Unitary Products Group... -
Page 6: Air Discharge Conversion
5 and 6. Convert as follows: 5. Before replacing panels, see duct connections and drain connections. 1. Remove the panels from the blower section. 6. Replace panels. FIGURE 4 - LL-15 MOTOR ARRANGEMENTS Unitary Products Group... -
Page 7: Ll-20 Motor Arrangements
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. FIGURE 5 - LL-20 MOTOR ARRANGEMENTS Unitary Products Group... -
Page 8: Vertical Airflow Arrangements
66339-BIM-C-0206 BLOWER EVAPORAT OR COIL * IF REQUIRED, SOME AIR CAN BE BROUGHT THROUGH THE BOTTOM OF THE EVAPORATOR SECTION. FIGURE 6 - VERTICAL AIRFLOW ARRANGEMENTS FIGURE 7 - HORIZONTAL AIRFLOW ARRANGEMENTS Unitary Products Group... -
Page 9: Unit Installation
Vertical 89.5 29.5 20 Ton Indoor Horizontal 1115 20 Ton Indoor Vertical 1115 36.5 20 Ton Motor Location Supply Air Return Air 15 Ton Motor Location Horizontal Application Corner Weights FIGURE 8 - HORIZONTAL APPLICATION CORNER WEIGHTS Unitary Products Group... -
Page 10: Duct Connections
Non-flammable material collars 1. Be used when ducts pass through an uncondi- should be used to minimize the transmission of noise tioned space in the cooling season or through an and/or vibration. unheated space during the heating season. Unitary Products Group... -
Page 11: Return Air Duct Angles
7/8” drain line to the nearest drain FIGURE 11 - RECOMMENDED DRAIN PIPING facility. Seal the cap at the unused end with suitable mastic. The LL-15 evaporator has one 7/8” OD drain connection through the right side of the cabinet. REFRIGERANT MAINS Drain piping should be constructed as shown in figure 9. -
Page 12: Evaporator Section Piping
Once the RPM and motor/kit combination is known, the number of turns open for the adjustable sheave can be Connect a supply of dry nitrogen through a reducing estimated from Table 3. regulator to an access valve or charging tail. Choose a Unitary Products Group... -
Page 13: Hole Locations For Pressure Drop Readings
FILTERS equipment installer. COIL SECTION To check the supply air CFM after the initial balancing has been completed: FIGURE 12 - HOLE LOCATIONS FOR PRESSURE DROP READINGS (15 TON) Unitary Products Group... -
Page 14: Electrical Connections
Drive Kit Drive Kit Drive Kit Drive Kit LL-15 460-3-60 575-3-60 460-3-60 575-3-60 1005 208-3-60 17.5 21.9 TABLE 2: APPROXIMATE RPM CHART 230-3-60 16.7 20.9 LL-20 460-3-60 575-3-60 Maximum fuse or maximum circuit breaker (HACR type per NEC). Unitary Products Group... -
Page 15: Pressure Drop Across Indoor Coil 15 Ton
5000 6000 7000 8000 FIGURE 14 - PRESSURE DROP ACROSS INDOOR COIL (15 TON) Pressure Drop Across Indoor Coil 20 Ton 5000 6000 7000 8000 9000 10000 FIGURE 15 - PRESSURE DROP ACROSS INDOOR COIL (20 TON) Unitary Products Group... -
Page 16: 15 Ton Airflow
66339-BIM-C-0206 TABLE 3: LL-15 15 TON AIRFLOW 0.4 ESP 0.6 ESP 0.8 ESP 1 ESP 1.2 ESP 1.4 ESP 4400 1.43 1.69 1.86 2.29 4600 1.46 1.77 1.99 2.59 4800 1.85 2.12 2.52 2.78 5000 1.55 1.94 2.26 2.64 2.98 5200 1.61... -
Page 17: 20 Ton Blower Performance
15 TON BLOWER PERFORMANCE 4200 4700 5200 5700 6200 6700 7200 7700 FIGURE 16 - 15 TON BLOWER PERFORMANCE 20 TON BLOWER PERFORMANCE 6000 6500 7000 7500 8000 8500 9000 9500 10000 FIGURE 17 - 20 TON BLOWER PERFORMANCE Unitary Products Group... -
Page 18: Unit Dimensions Ll-15 And Ll-20
66339-BIM-C-0206 FIGURE 18 - UNIT DIMENSIONS LL-15 and LL-20 TABLE 5: UNIT DIMENSIONS LL-15 AND LL-20 MODEL LL-15 89-1/2 85.0 26.0 29-1/2 1-7/16 15-7/8 12-7/16 15-13/16 20-3/4 LL-20 100-1/8 95-5/8 33-1/4 36-5/8 73-1/4 2-1/2 18-7/8 16-1/2 15-13/16 21-7/8 22-9/16 Unitary Products Group... -
Page 19: Piping And Electrical Connection Locations
66339-BIM-C-0206 FIGURE 19 - PIPING and ELECTRICAL CONNECTION LOCATIONS Unitary Products Group... - Page 20 Subject to change without notice. Printed in U.S.A. 66339-BIM-C-0206 Copyright © 2006 by Unitary Products Group. All rights reserved. Supersedes: 66339-BIM-B-0304/035-18503-001-B-0304 Unitary 5005 Norman Products York Group Drive 73069...
Need help?
Do you have a question about the LL-15 and is the answer not in the manual?
Questions and answers