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INSTALLATION
MANUAL
CONTENTS
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 5
AGENCY APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
See the following page for a complete Table of Contents.
NOTES, CAUTIONS AND WARNINGS
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 dam-
age may result if installation procedure is not handled
properly.
CAUTION: READ ALL SAFETY GUIDES BEFORE
YOU BEGIN TO INSTALL UNIT.
SAVE THIS MANUAL
SPLIT-SYSTEM
CONDENSING UNITS
(AIR COOLED)
MODELS:
HF-25 - 25 Ton
HL-30 - 30 Ton
HL-40 - 40 Ton
HL-50 - 50 Ton
278806-BIM-A-1106
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Table of Contents
Related Manuals for Unitary products group HF-25 - 25 Ton
Summary of Contents for Unitary products group HF-25 - 25 Ton
- Page 1 GENERAL........5 MODELS: HF-25 - 25 Ton SAFETY CONSIDERATIONS ....5 HL-30 - 30 Ton AGENCY APPROVALS .
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Page 2: Table Of Contents
LUBRICATION ....... . 27 COMPRESSOR REPLACEMENT ....27 Unitary Products Group... - Page 3 LIQUID LINES ......14 R-22 LINE CHARGE ......14 Unitary Products Group...
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Page 4: Nomenclature
AC = Technicoated Coil Product Generation 1 = 1st Generation 2 = 2nd Generation NOTE: HL models are designed for 4-Pipe (dual) applications only. 4-Pipe condensing units can- not be matched with one single 2-Pipe air han- dler. Unitary Products Group... -
Page 5: General
A separate request for inspection by service or maintenance can cause injury or the carrier’s agent should be made in writing. property damage. Refer to this manual for assistance or additional information, consult a qualified installer or service agency. Unitary Products Group... -
Page 6: Installation
125°F providing the wet bulb temperature of the air entering the evaporator coil does not exceed 67°F. Unit can operate to 0°F if equipped with a low ambient kit. 1. The condensing unit is designed for outdoor instal- lation only. Unitary Products Group... -
Page 7: Rooftop Locations
884.5 HL-30 1730 1790 110.46 88.46 44.8 42.8 701.6 1028.4 HL-40 1961 2037 128.46 88.46 51.0 43.8 778.5 1182.5 HL-50 2470 2563 128.46 88.46 49.2 44.5 946.0 1524.0 FIGURE 1 - CORNER WEIGHTS & CENTER OF GRAVITY Unitary Products Group... -
Page 8: Clearances
The length of the spreader bars must exceed the width Bottom of the unit. Refer to Table 3 for unit weights. In all installations where snow accumulates and winter operation is expected, additional height must be provided to insure normal condenser airflow. Unitary Products Group... -
Page 9: Power Wiring
This will allow PHASING sufficient time for all liquid refrigerant to be driven out of the compressor. The units are properly phased at the factory. Check for proper compressor rotation. If the fans or compressors Unitary Products Group... -
Page 10: Refrigerant Mains
NOTE: Dry Nitrogen should flow through the system at all times when heat is being applied and until The liquid and suction connections permit leak testing, the joint has cooled. evacuation, and partial charging of the field piping and Unitary Products Group... -
Page 11: Line Sizing
Nitrogen from the liquid line valve service port through the evaporator, back to the These condensing units may have service valves on condensing unit and out the suction valve service port. the compressor suction line and on the liquid line Unitary Products Group... -
Page 12: Evacuation And Charging
23 psi will result in overheating of the scrolls and permanent damage to the com- Connect a vacuum pump through a charging manifold pressor drive bearing. to both the liquid service port connection on the liquid Unitary Products Group... -
Page 13: (Inches)
1500 System #1 1 5/8 1710 Half Capacity 12.5 2 1/8 2 5/8 HL-50 1 5/8 3384 Full Capacity 2 1/8 1945 2 5/8 1500 System #2 1 5/8 1710 Half Capacity 12.5 2 1/8 2 5/8 Unitary Products Group... -
Page 14: Liquid Lines
Charges based on 40ºF suction temperature and 105ºF liquid temperature. Type “L” copper tubing. NOTE: Add the operating charge of the condensing unit, evaporator coil and 25 feet of interconnecting piping to any additional piping refrigerant charge required (determined from Table 8) for total system charge. Unitary Products Group... -
Page 15: Typical Field Wiring Diagram - Hf-25 Unit
278806-BIM-A-1106 Note 1 Note 1. See page 16 and 17 for details on wiring HF/HL models to non LF/LL indoor models. FIGURE 3 - TYPICAL FIELD WIRING DIAGRAM - HF-25 UNIT Unitary Products Group... -
Page 16: Typical Field Wiring Diagram - Hl-30, 40, 50 Units
278806-BIM-A-1106 FIGURE 4 - TYPICAL FIELD WIRING DIAGRAM - HL-30, -40, -50 UNITS Unitary Products Group... -
Page 17: Typical Liquid Line Solenoid Wiring
Non LF/LL units may not include any or all of the components required to wire the unit use the diagram as general reference only. FIGURE 5 - TYPICAL LIQUID LINE SOLENOID WIRING Unitary Products Group... -
Page 18: Piping And Electrical Connections
See Tables 10, 11 and 12 and Figures 7 thru 11 for piping sizes and electrical knockout details. Unitary Products Group... -
Page 19: 40 Ton Power And Control Wiring Connections
278806-BIM-A-1106 Control Wiring Power Wiring FIGURE 7 - 25, 30 & 40 TON POWER AND CONTROL WIRING CONNECTIONS Control Wiring Power Wiring FIGURE 8 - 50 TON POWER AND CONTROL WIRING CONNECTIONS Unitary Products Group... -
Page 20: Piping And Electrical Connection Sizes
SEE TABLE 12 CONTROL WIRING 7/8 HOLE CONTROL WIRING 7/8 HOLE TABLE 12: ELECTRICAL POWER KNOCKOUT SIZES (INCHES) CONNECTION ENTRY 25T/230V 25T/460-575V 30-40-50T/230V 30-40-50T/460-575V POWER WIRING 2” 1-1/2” 2-1/2” 1-1/2” iquid Suction FIGURE 9 - 25 TON PIPING CONNECTIONS Unitary Products Group... -
Page 21: 30 & 40 Ton Piping Connections
Suction (Sys 1) Liquid (Sys 2) Suction (Sys 2) FIGURE 10 - 30 & 40 TON PIPING CONNECTIONS Liquid (Sys 2) Suction (Sys 2) Suction (Sys 1) Liquid (Sys 1) FIGURE 11 - 50 TON PIPING CONNECTIONS Unitary Products Group... -
Page 22: Start-Up
9. Are any refrigerant lines touching each other or any sheet metal surface? Rubbing due to vibration These series of condensing units, come factory could cause a refrigerant leak. equipped with Simplicity™ controls to monitor all unit functionality and safety controls. Unitary Products Group... -
Page 23: Safety Controls
When energized, the indoor blower has a minimum run An ambient air switch will lock out mechanical cooling time of 30 seconds. Additionally, the indoor blower has at 40°F. In order to operate the unit in ambient temper- a delay of 10 seconds between operations. Unitary Products Group... -
Page 24: Cooling Sequence Of Operation
Flash codes that do and do not represent alarms are minimum run times, the compressors and condenser listed in Table 13. fans are de-energized. Otherwise, the unit operates each cooling stage until the ASCD has elapsed. Upon Unitary Products Group... -
Page 25: Unit Control Board
14 Flashes EEPROM Storage Failure No Power or Control Failure Non-alarm condition. Check Alarm History Reset All ASCDs for One Cycle Non Alarm Condition Green LED Flashing Current Alarm Flashed Red LED FIGURE 12 - UNIT CONTROL BOARD Unitary Products Group... -
Page 26: Unit Control Board Option Setup
Show him the location of all discon- See Fan Orientation on page 26 Figure 13. nect switches and the thermostat. Teach him how to start and stop the unit and how to adjust temperature settings within the limitations of the system. Unitary Products Group... -
Page 27: Maintenance
2. This chart is applicable to the unit with the TXV's left to the factory setting. If the TXV's have been adjusted in the field, the chart above may no longer apply. FIGURE 14 - 25 TON CHARGING CHART Unitary Products Group... -
Page 28: 30 Ton Charging Chart
2. This chart is applicable to the unit with the TXV's left to the factory setting. If the TXV's have been adjusted in the field, the chart above may no longer apply. FIGURE 16 - 40 TON CHARGING CHART Unitary Products Group... -
Page 29: 50 Ton Charging Chart
2. This chart is applicable to the unit with the TXV's left to the factory setting. If the TXV's have been adjusted in the field, the chart above may no longer apply. FIGURE 17 - 50 TON CHARGING CHART Unitary Products Group... -
Page 30: Typical 25 Ton Condenser Unit Wiring Diagram - 208/230-3-60
278806-BIM-A-1106 FIGURE 18 - TYPICAL 25 TON CONDENSER UNIT WIRING DIAGRAM - 208/230-3-60 Unitary Products Group... -
Page 31: Typical 25 Ton Condenser Unit Wiring Diagram - 460-3-60, 575-3-60
278806-BIM-A-1106 FIGURE 19 - TYPICAL 25 TON CONDENSER UNIT WIRING DIAGRAM - 460-3-60, 575-3-60 Unitary Products Group... -
Page 32: Typical 30 Or 40 Ton Condensing Unit Wiring Diagram - 208/230-3-60
278806-BIM-A-1106 FIGURE 20 - TYPICAL 30 or 40 TON CONDENSING UNIT WIRING DIAGRAM - 208/230-3-60 Unitary Products Group... -
Page 33: Typical 30 Or 40 Ton Condensing Unit Wiring Diagram - 460-3-60, 575-3-60
278806-BIM-A-1106 FIGURE 21 - TYPICAL 30 or 40 TON CONDENSING UNIT WIRING DIAGRAM - 460-3-60, 575-3-60 Unitary Products Group... -
Page 34: Typical 50 Ton Condenser Unit Wiring Diagram - 208/230-3-60
278806-BIM-A-1106 FIGURE 22 - TYPICAL 50 TON CONDENSER UNIT WIRING DIAGRAM - 208/230-3-60 Unitary Products Group... -
Page 35: Typical 50 Ton Condenser Unit Wiring Diagram - 460-3-60, 575-3-60
278806-BIM-A-1106 FIGURE 23 - TYPICAL 50 TON CONDENSER UNIT WIRING DIAGRAM - 460-3-60, 575-3-60 Unitary Products Group... - Page 36 Subject to change without notice. Printed in U.S.A. 278806-BIM-A-1106 Copyright © 2006 by Unitary Products Group. All rights reserved. Supersedes: 66410/035-19321-000-B-0404 Unitary 5005 Norman Products York Group Drive 73069...
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