Page 3 - TABLE OF CONTENTS; GLYCOOL; DISCONTINUED
i TABLE OF CONTENTS P RODUCT M ODEL I NFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V 1.0 I NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 System De...
Page 4 - ii; ATER
ii 4.1 Drycooler Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4.1.1 Outdoor Prop Fan Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4.1.2 Indoor Pig...
Page 5 - iii; FIGURES
iii FIGURES Figure 1 Downflow (DH and DE models) cabinet and floor planning dimensional data . . . . . . . . . . . . . . . . 4 Figure 2 Upflow 6, 8 and 10 ton (VH and VE models) cabinet and floor planning dimensional data . . . . . 6 Figure 3 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and...
Page 6 - iv; TABLES
iv TABLES Table i Model number designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Table ii Unit weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 7 - Equipment Inspection; sales representative.; Table i; DH; WARNING; Hazardous voltage! Always disconnect power before servicing.; CAUTION; directly above any equipment that could sustain water damage.
v P RODUCT M ODEL I NFORMATION Equipment Inspection Upon arrival of the unit, inspect all items for either visible or concealed damage. Damage should be immediately reported to the carrier and a damage claim filed with a copy sent to Liebert or to your sales representative. Table i Model number desi...
Page 8 - Capacity and Cooling Type
vi Table ii Unit weights Capacity and Cooling Type Weight lbs (kg) Air Cooled Models DH/VH, 60 (50) Hz 75A 1205 (547) 114A (115A) 1425 (647) 125A (130A) 1440 (645) 199A 1840 (835) 245A 1960 (890) 290A 2025 (920) 380A 2160 (981) Water Cooled Models DH/VH, 60 (50) Hz 86W 1455 (661) 127W (128W) 1675 (7...
Page 9 - Introduction; NTRODUCTION; System Descriptions; Two stages of mechanical refrigeration are available.
Introduction 1 1.0 I NTRODUCTION 1.1 System Descriptions Deluxe System/3 environmental control systems are available in several configurations. Each configu- ration can operate with either Advanced Microprocessor Controls (AM), or Advanced Microprocessor Controls with Graphics (AG). A brief descript...
Page 11 - Installation; NSTALLATION; Room Preparation; of the total air circulated in the room.; Location Considerations; cleaning the humidifier.
Installation 3 2.0 I NSTALLATION 2.1 Room Preparation The room should be well-insulated and must have a sealed vapor barrier. The vapor barrier in the ceiling can be a polyethylene film type. Use a rubber-base or plastic-base paint on concrete walls and floors. Doors should not be undercut or have g...
Page 12 - Unit Dimensions; UNIT DIMENSIONAL DATA
Installation 4 2.3 Unit Dimensions Figure 1 Downflow (DH and DE models) cabinet and floor planning dimensional data UNIT DIMENSIONAL DATA FLOOR CUTOUT DIMENSIONS UNITS WITH HIGH PRESSU RE VALVE & SHADED AREAS INDICATE A RECOMMENDED CLEARANCE OF 34 (864mm) FOR COMPONENT ACCESS AND FILTER REMOVAL....
Page 13 - Table 1; Air Cooled
Installation 5 Table 1 Downflow (DH and DE models) dimensions Air Cooled Water Cooled Glycol Cooled GLYCOOL Dimensional Data inches (mm) 60 Hz 50 Hz A B C D E F G H J K L DH75A DH86W DH72G DE72G DH75A DH86W DH72G DE72G 74 (1880) 70 (1778) 35 (889) 32 (813) 72 (1829) 33 (838) 14-1/4 (362) 54-3/4 (139...
Page 15 - Table 2
Installation 7 Figure 3 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and deck dimensional data Table 2 Upflow 6, 8 and 10 ton (VH and VE models) blower duct and deck dimensional data Blower Supply Motor HP Dimensional Data inches (mm) A B C D F VH075A VH086W VH072G VE072G 15 x 15 TOP FRONT ...
Page 17 - Table 3
Installation 9 Figure 5 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data Table 3 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data Blower Supply Motor HP Dimensional Data inches (mm) A B C D E F VH199A VH219W VH192G VE192G 15 x 15 TOP ...
Page 19 - Table 4
Installation 11 Figure 7 Upflow 30 ton (VH and VE models) blower duct and deck dimensional data Table 4 Upflow 15, 20 and 22 ton (VH and VE models) blower duct and deck dimensional data Blower Supply Motor HP Dimensional Data inches (mm) A B C D E F G VH380A VH412W VH363G VE363G 15 x 5 TOP FRONT 10 ...
Page 20 - Piping; run parallel to the air flow.; Electrical Connections; the pump must comply with all applicable codes.
Installation 12 2.4 Piping All fluid and refrigeration connections to the unit, with the exceptions of the condensate drain and live steam, are sweat copper. Factory-installed piping brackets must not be removed. Field-installed piping must be installed in accordance with local codes and must be pro...
Page 21 - Figure 8 Electrical connection details; Remote Heat Rejection Connections; NOTES
Installation 13 Figure 8 Electrical connection details Remote Heat Rejection Connections Diagram is for direct drive air-cooled condensers (for air-cooled units) and direct drive drycoolers (for glycol/GLYCOOL units). Control Board Wire Legend 2-wire connection for heat rejection interlock (Note 5) ...
Page 22 - Figure 9 Electrical field connections; Monitoring panel
Installation 14 Figure 9 Electrical field connections NOTERefer to specification sheet for full load amp and wire size amp ratings. Monitoring panel Field-supplied disconnect switch when factory-installed unit disconnect switch is not provided Field-wired to components on electric panel Electric con...
Page 23 - Air Distribution Considerations; cable cutouts, cracks between the panels and other leakage areas.; Upflow Systems Additional Installation Considerations; Table 5; Direct
Installation 15 2.6 Air Distribution Considerations 2.6.1 Raised-Floor Air Flow Distribution Considerations To ensure proper air distribution, any unusual restrictions within the air circuit must be avoided. For under-floor air distribution, observe the following guidelines:Select the air supply gri...
Page 24 - ing a duct to this flange may reduce airflow to inadequate levels.; Figure 10 Ducting configurations; Straight section of duct off of unit to be 1.5 to 2.5 times the
Installation 16 2.6.3 Ducted Application Installation Duct flanges are supplied on the blower outlets. Follow the SWACNA-Duct Construction Standard for single-, dual-, or triple-blower systems. Do not run ductwork off the perimeter flange on the top of the unit. This flange is for positioning and at...
Page 25 - Figure 11 Plenum dimensional data for 6 - 22 ton models; Model
Installation 17 Figure 11 Plenum dimensional data for 6 - 22 ton models Table 6 Plenum dimensional data for 6 - 22 ton models, in. (mm) Model A B C D E F Grille Free Area Sq Ft (sq m) DH/DE/VH/VE-75A, 86W, 72G DH/DE/VH/VE-115A, 128W, 111G DH/DE/VH/VE-114A, 127W, 110G DH/DE/VH/VE-130A, 143W, 121G DH/...
Page 26 - Figure 12 Plenum dimensional data for 30 ton models
Installation 18 Figure 12 Plenum dimensional data for 30 ton models Table 7 Plenum dimensional data for 30 ton models in. (mm) Model A B C D E F G H J K L Grille Free Area Sq Ft (sq m) DH/DE/VH/VE-380A, 412W, 363G 122 (3099) 34 (864) 118 (2997) 32 (813) 44 (1118) 3-1/2 (89) 4 (102) 7 (178) 16 (406) ...
Page 27 - Air Cooled Models; IR; Condenser Location; side. Proper grilles/screens are required on the outside wall.; local and national codes.
Air Cooled Models 19 3.0 A IR C OOLED M ODELS 3.1 Condenser Location 3.1.1 Outdoor Prop Fan Models The air cooled condenser should be located for maximum security and maintenance accessibility. Avoid ground level sites with public access or areas that contribute to heavy snow or ice accumula- tions....
Page 28 - Refrigerant Piping; Table 8
Air Cooled Models 20 3.3 Refrigerant Piping All refrigeration piping should be installed with high temperature brazed joints. Prevailing good refrigeration practices should be employed for piping supports, leak testing, dehydration and charg- ing of the refrigeration circuits. The refrigeration pipi...
Page 29 - Figure 13 Piping: Fan speed control condensers
Air Cooled Models 21 Figure 13 Piping: Fan speed control condensers Table 9 Fan speed control condenser piping connection sizes - Cu OD Condenser Model Number Entering Hot Gas Line In. (mm) Returning Liquid Line In. (mm) CDF-065 1/2 (12.7) 1/2 (12.7) CDF-083L 1/2 (12.7) 1/2 (12.7) CDF-086 7/8 (22.2)...
Page 30 - Figure 14 Piping: Lee-Temp control condensers
Air Cooled Models 22 Figure 14 Piping: Lee-Temp control condensers Table 10 Lee-Temp control condenser piping connection sizes Condenser Connections-ODS inches (mm) Lee-Temp Size Lee-Temp Connections-ODS inches (mm) Model # Hot Gas A Liquid B Hot Gas Tee F Liq. to L-T Valve C Receiver Out D CDL-065 ...
Page 31 - Figure 15 Downflow air cooled (DH) piping connections
Air Cooled Models 23 Figure 15 Downflow air cooled (DH) piping connections Table 11 Downflow air cooled (DH) piping connection sizes, inches Air Cooled Models 60 Hz (50 Hz) A (AO Cu) B (OD Cu) C (NPT Male) D (OD Cu) E (NPT Male) F (OD Cu) DH075A (DH075A) 5/8 1/2 1/2 5/8 1/2 5/8 DH114A (DH115A) 5/8 1...
Page 32 - Figure 16 Upflow air cooled (VH) piping connections
Air Cooled Models 24 Figure 16 Upflow air cooled (VH) piping connections Table 12 Factory provided piping connection sizes, inches, upflow air cooled (VH) Air Cooled Models A OD Cu B OD Cu C NPT Female D OD Cu E NPT Female F OD Cu 50Hz 60Hz VH-075A VH-075A 5/8 1/2 1/2 5/8 1/2 5/8 VH-115A VH-114A 5/8...
Page 34 - Outdoor air cooled 1-4 fan condenser physical data
Air Cooled Models 26 Table 13 Outdoor air cooled 1-4 fan condenser physical data Model CSF/CDF 1 # of Fans A B C D Total Heat Rejection 60 Hz 3 CFM (l/s) 60 Hz 2 Total Heat Rejection 50 Hz 3 CFM (l/s) 50 Hz 2 Net Weight lb (kg) in. (mm) in. (mm) in. (mm) in. (mm) BTU/H/°F kW/°C BTU/H/°F kW/°C -065 1...
Page 35 - Outdoor air cooled 6 and 8 fan condenser physical data
Air Cooled Models 27 Figure 18 Outdoor air cooled 6 and 8 fan condenser cabinet and anchor dimensional data Table 14 Outdoor air cooled 6 and 8 fan condenser physical data Model # of Fans A B C E L CFM (l/s) 60 Hz THR 60 Hz. BTU/hr (kw) CFM (l/s) 50 Hz THR 50 Hz BTU/hr (kW) Net Weight lb (kg) in (mm...
Page 36 - Figure 19 Air cooled model general arrangement diagram; Fan Speed Control
Air Cooled Models 28 Figure 19 Air cooled model general arrangement diagram NOTETwo refrigeration circuits required - Single circuit shown only for clarity Table 15 Refrigerant control settings psi (kPa) Model Refrigerant Type Low Pressure Cut Out Low Pressure Cut In High Pressure Cut Out Fan Speed ...
Page 37 - air discharge opening.; Piggyback condenser dimensional data; FLOOR CUTOUT DIMENSIONS
Air Cooled Models 29 Figure 20 Piggyback condenser cabinet and floor planning dimensional data NOTEA 1” (25.4mm) flange is provided on all units for duct connection to coil duct opening and fan air discharge opening. Table 16 Piggyback condenser dimensional data Model Dimensional Data in. (mm) Shipp...
Page 38 - Figure 21 Piggyback condenser piping connections; Piggyback condenser approximate refrigerant charges
Air Cooled Models 30 Figure 21 Piggyback condenser piping connections Table 17 Piggyback condenser piping connection dimensional data Model Dimensional Data Connection Sizes O.D.S., inches (mm) A B C D E F G Liquid Line Hot Gas Line Drain PB350A – – 27-1/4 (692) 1-1/2 (38) 6 (152) 9-1/8 (232) 28-3/4...
Page 39 - Fan Speed Control Systems; monitoring refrigerant pressure.
Air Cooled Models 31 3.4 Fan Speed Control Systems Fan Speed Control provides an infinite number of speed variations on specially designed permanent split-capacitor motors. The control module varies the air quantity passing over the condenser coil by monitoring refrigerant pressure. 3.4.1 Materials ...
Page 40 - Refrigerant control settings for air cooled units psi (kPa)
Air Cooled Models 32 Table 19 Indoor unit approximate refrigerant charge lb (kg.) R–22 Model 60 Hz (50 Hz) Refrigerant Charge/Circuit 75A 4.0 (1.8) 114A (115A) 5.0 (2.3) 125A (130A) 5.0 (2.3) 199A 6.0 (2.7) 245A 7.0 (3.2) 290A 7.0 (3.2) 380A 8.0 (3.6) Table 20 Outdoor condenser approximate refrigera...
Page 41 - Lee-Temp/Flood Back Head Pressure Control Systems; damp cloth to keep the valve temperature below 250°F (121°C).
Air Cooled Models 33 3.5 Lee-Temp/Flood Back Head Pressure Control Systems The Lee-Temp system consists of a modulating type head pressure control valve and insulated receiv- ers with heater pads to ensure operation at ambient temperatures as low as -30°F (-34.4°C). 3.5.1 Piping Be sure to install t...
Page 42 - vapor through the suction port.; Figure 22 Lee-Temp control condenser; Top sight glass is 3/4 full; supplied and installed by others.
Air Cooled Models 34 3.5.4 Charging 1. Make sure unit is OFF and that jumper is removed on Fan Safety Switch.2. Connect a set of manifold gauges to the refrigerant drum and to the receiver at the rotalock valve. Purge the hoses. 3. Open the rotalock valve and fill the receiver with liquid refrigeran...
Page 43 - Figure 23 Lee-Temp control typical general arrangement diagram
Air Cooled Models 35 Figure 23 Lee-Temp control typical general arrangement diagram Condenser Coil Traps* every 25’ (7.6m) of rise on hot gas line only Solenoid Valves External Equalizers Liquid Return Filter Dryer Sight Glass Expansion Valve Cylinder Unloaders (optional) Sensing Bulb Evaporator Coi...
Page 44 - Glycol Cooled/GLYCOOLTM Models; LYCOL; Drycooler Location; Proper grills/screens are required on the outside wall.; Drycooler Installation; the drycooler to steel supports or concrete pad.; supplied and mounted in the electric panel.; Glycol Piping; return lines should be insulated to prevent condensation.
Glycol Cooled/GLYCOOL™ Models 36 4.0 G LYCOL C OOLED /GLYCOOL™ M ODELS 4.1 Drycooler Location 4.1.1 Outdoor Prop Fan Models The drycooler should be located for maximum security and maintenance accessibility. Avoid ground- level sites with public access or areas that contribute to heavy snow or ice a...
Page 45 - Room dew point temperatures; Glycol concentration; Freezing Point; Refrigerant control settings for glycol cooled units—psi (kPa)
Glycol Cooled/GLYCOOL™ Models 37 Table 23 Room dew point temperatures ° F ( ° C) Dry Bulb Wet Bulb Relative Humidity Dew Point 70 (21.1) 57.2 (14.0) 45 48.9 (8.9) 70 (21.1) 58.5 (14.7) 50 50.5 (10.3) 72 (22.2) 58.9 (14.9) 45 50.0 (10.0) 72 (22.2) 60.0 (15.5) 50 52.4 (11.3) 75 (23.8) 61.2 (16.2) 45 5...
Page 46 - Figure 24 Downflow glycol cooled (DH) piping connections; Glycol Cooled Models; NA
Glycol Cooled/GLYCOOL™ Models 38 Figure 24 Downflow glycol cooled (DH) piping connections Table 28 Downflow glycol cooled (DH) piping connection sizes, inches Glycol Cooled Models 60 Hz (50 Hz) A (OD CU) B (OD CU) C (NPT Male) D (OD CU) E (NPT Male) F (OD CU) DH072G (DH072G) 1-5/8 1-5/8 1/2 5/8 1/2 ...
Page 47 - Figure 25 Upflow glycol cooled (VH) piping connections
Glycol Cooled/GLYCOOL™ Models 39 Figure 25 Upflow glycol cooled (VH) piping connections Table 29 Factory-provided piping connection sizes, inches, upflow glycol cooled (VH) Glycol Cooled Models A OD Cu B OD Cu C NPT Female D OD Cu E NPT Female F OD Cu 50 Hz 60 Hz VH-072G VH-072G 1-5/8 1-5/8 1/2 5/8 ...
Page 48 - Figure 26 Downflow GLYCOOL; GLYCOOL Models; NOTE: Install all piping
Glycol Cooled/GLYCOOL™ Models 40 Figure 26 Downflow GLYCOOL ™ cooled (DE) piping connections Table 30 Downflow GLYCOOL (DE) piping connection sizes, inches GLYCOOL Models 60 Hz (50 Hz) A (OD CU) B (OD CU) DE072G (DE072G) 1-5/8 1-5/8 DE110G (DE111G)DE116G (DE121G)DE192G (DE192G) 2-1/8 2-1/8 DE240G (D...
Page 49 - Figure 27 Upflow GLYCOOL; UNIT CONNECTION LOCATIONS
Glycol Cooled/GLYCOOL™ Models 41 Figure 27 Upflow GLYCOOL ™ cooled (VE) piping connections Table 31 Upflow GLYCOOL (VE) piping connection sizes, inches GLYCOOL Models 60 Hz (50 Hz) A (OD Cu) B (OD Cu) VE072G (VE072G) 1-5/8 1-5/8 VE110G (VE111G)VE116G (VE121G)VE192G (VE192G) 2-1/8 2-1/8 VE240G (VE240...
Page 50 - Figure 28 1-4 fan drycooler cabinet and anchor dimensional data
Glycol Cooled/GLYCOOL™ Models 42 Figure 28 1-4 fan drycooler cabinet and anchor dimensional data Table 32 Glycol pump data Pump Pump Suction Connection in. Pump Discharge Connection in. Hp Hz 1-1/2 60 1-1/4 3/4 2 60 3 60 1-1/2 1 5 60 1-1/4 1 50 1-1/4 3/4 2 50 3 50 1-1/2 1-1/4 Note: Connection sizes ...
Page 51 - -4 fan drycooler physical data
Glycol Cooled/GLYCOOL™ Models 43 Table 33 1-4 fan drycooler physical data Model (Notes 2,3,4) # of Fans A B C D CFM (l/s) 60 Hz 1 CFM (l/s) 50 Hz 1 Internal Volume gal. (l) Net Weight lb (kg) Piping Connection Sizes in. (mm) in. (mm) in. (mm) in. (mm) Inlet in. (mm) Outlet in. (mm) -033 1 51-1/2 (13...
Page 53 - Preparation of Glycol Solutions; recommendations. Do not mix products of different manufacturers.; Automotive antifreeze is unacceptable and must NOT be used.; Galvanized pipe must not be used in glycol systems.
Glycol Cooled/GLYCOOL™ Models 45 4.5 Preparation of Glycol Solutions Typical ethylene glycol manufacturers and suppliers are Union Carbide (Ucartherm) or Dow Chemi- cal Company (Dowtherm SR-1). These ethylene glycols are supplied with an inhibitor and do not con- tain an anti-leak formula. Commercia...
Page 54 - Figure 30 Glycol general arrangement
Glycol Cooled/GLYCOOL™ Models 46 Figure 30 Glycol general arrangement Filter Dryer Sight Glass Solenoid Valves Expansion Valve Hot Gas Bypass (optional) Muffler Shutoff Valve Relief Valve Hose Bibs* Fill* Drycooler Coil Drycooler Electric Box Expansion Tank field-installed at highest point in system...
Page 55 - Figure 31 GLYCOOL
Glycol Cooled/GLYCOOL™ Models 47 Figure 31 GLYCOOL ™ general arrangement * Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance Factory PipingOptional PipingField Piping Glycol Coolant Circuit (one required per unit) 3-Way Glycol Regulating Valve Ai...
Page 56 - Water Cooled Models; Piping Considerations; installed near the base of the unit or below the elevated floor.; Condenser; capillary is not connected properly to the condenser.; Refrigerant control settings for water cooled units—psi (kPa)
Water Cooled Models 48 5.0 W ATER C OOLED M ODELS 5.1 Piping Considerations Manual shut-off valves should be installed at the supply and return lines of each unit. This will pro- vide for routine maintenance or emergency isolation of the unit.When the water source for the condenser is of poor qualit...
Page 57 - Figure 32 Water cooled general arrangement
Water Cooled Models 49 Figure 32 Water cooled general arrangement Evaporator Coil Expansion Valve Solenoid Valves Sight Glass Filter Dryer Shutoff Valve Hot Gas Bypass (optional) Hot Gas Bypass Valve External Equalizers Sensing Bulb Cylinder Unloader (optional) Hot Gas Reheat Coil (optional on downf...
Page 58 - Figure 33 Downflow water cooled (DH) piping connections
Water Cooled Models 50 Figure 33 Downflow water cooled (DH) piping connections Table 36 Downflow water cooled (DH) piping connection sizes, inches Water Cooled Models 60 Hz (50 Hz) A (OD Cu) B (OD Cu) C (NPT Male) D (OD Cu) E (NPT Male) F (OD Cu) DH086W (DH086W) 1-5/8 1-5/8 1/2 5/8 1/2 5/8 DH127W (D...
Page 59 - Figure 34 Upflow water cooled (VH) piping connections; Optional Steam Humidifier; See Figure 37 for piping
Water Cooled Models 51 Figure 34 Upflow water cooled (VH) piping connections Install field piping through factory- supplied cover plate (not shown for clarity). Seal around all piping penetrations. Unit Left End Panel Optional Steam Humidifier Optional Steam Reheat Optional Hot Water Reheat (2-Way V...
Page 64 - Precision Cooling; IS
Ensuring The High Availability0f Mission-Critical Data And Applications. Emerson Network Power, the global leader in enabling business-criticalcontinuity, ensures network resiliency and adaptability througha family of technologies—including Liebert power and coolingtechnologies—that protect and supp...
