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TECHNICAL
TECHNICAL
GUIDE 50Hz
GUIDE 50Hz
MagnaDRY™
SINGLE PACKAGE AIR CONDITIONERS AND
SINGLE PACKAGE GAS/ELECTRIC UNITS
DR090
7-1/2 NOMINAL TONS
ISO 9001
Certified Quality
Management System
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
®
®
YORK
Predator
MagnaDRY™ units are convertible single
packages with a common footprint cabinet and common roof curb
for all 7-1/2 ton models. All units have two compressors with inde-
pendent refrigeration circuits. The units were designed for light
commercial applications and can be easily installed on a roof
curb, slab, roof jack, or frame.
®
All Predator
MagnaDRY™ units are self-contained and assem-
bled on rigid full perimeter base rails allowing for 3-way forklift
access and overhead rigging. Every unit is completely charged,
wired, piped, and tested at the factory to provide a quick and easy
field installation.
All units are convertible between side and down airflow. A single
economizer design is used on side and down discharge applica-
tions, as well as all tonnage sizes.
®
The Predator
MagnaDRY™ provides energy-savings, efficient
removal of moisture through a balanced coil design. Because the
unit doesn't increase sensible cooling, it allows temperatures to
be maintained within the confort zone. Unlike competitive sys-
tems, you're not subjected to over cooling. You save through more
efficient matching of dehumidification and cooling needs. This
makes the MagnaDRY™ perfect for applications that need to
remove large amounts of moisture or maintain low humidity levels.
265485-XTG-B-1208
®
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Table of Contents
Related Manuals for York MagnaDRY
Summary of Contents for York MagnaDRY
- Page 1 You save through more efficient matching of dehumidification and cooling needs. This makes the MagnaDRY™ perfect for applications that need to remove large amounts of moisture or maintain low humidity levels. ISO 9001...
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Page 2: Table Of Contents
265485-XTG-B-1208 TABLE OF CONTENTS DESCRIPTION ......1 LIST OF TABLES FEATURES ....... . 3 Tbl. -
Page 3: Features
Roof efficient operation curbs for transitioning from Compressor #1 access Side entry power York Sunline™ footprint to Toolless (high-efficiency compressor and control wiring the DR Series footprints are door latch w/crankcase heater) - Page 4 265485-XTG-B-1208 • Convertible Airflow Design – The side duct openings • Safety Monitoring - The control board monitors the are covered when they leave the factory. If a side sup- high and low-pressure switches, the freezestats, the ply/return is desired, the installer simply removes the two gas valve, if applicable, and the temperature limit side duct covers from the outside of the unit and installs switch on gas and electric heat units.
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Page 5: Factory Installed Options
FACTORY INSTALLED OPTIONS • Alternate Indoor Blower Motor - For applications with ® high static restrictions, units are offered with optional YORK offers several equipment options factory installed, for ® indoor motors that provide higher static output and/or the Predator line. -
Page 6: Field Installed Accessories
FIELD INSTALLED ACCESSORIES • Sensor - Senses CO levels and automatically overrides the economizer when levels rise above the ® YORK offers several equipment accessories for field instal- preset limits. ® lation, for the Predator line. •... - Page 7 265485-XTG-B-1208 • Gas Heat Propane Conversion Kit - This kit converts a “NORMAL” MODE gas-fired heater from natural gas to propane. It contains When the reheat control board (RCB) detects a need for the main burner orifices and gas valve replacement dehumidification (24VAC) at "HUM"...
- Page 8 265485-XTG-B-1208 HGRR DEHUMIDISTAT MODE HARNESS SELECTION CONNECTION JUMPER FIGURE 2 - REHEAT CONTROL BOARD Johnson Controls Unitary Products...
- Page 9 265485-XTG-B-1208 eheat Solenoid 1 eheat Solenoid 3 eheat Solenoid 2 Unit Control Board eheat Terminal Block eheat Control eheat Board elay Dehumidistat Terminal FIGURE 3 - DR090 REHEAT CONTROLS Johnson Controls Unitary Products...
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Page 10: Nomenclature
265485-XTG-B-1208 NOMENCLATURE ® 7.5 Ton York Model Number Nomenclature D R 090 N10 A 7 A AA 3 0 1 2 4 A Product Category Product Style D = A/C, Single Pkg., R-22 A = Style A B = Style B... -
Page 11: Physical Data
265485-XTG-B-1208 TABLE 1: PHYSICAL DATA Models Component Blower, Centrifugal 15 x 15 Dia. X Wd. in. (381 x 381) Evaporator (Dia. X Wd. mm.) Blower Motor, Standard - HP (kW) 1-1/2 (1.1) Motor, Optional - HP (kW) 2 (1.5) Rows Fins per 2.54 cm (1 in.) Evaporator Coil... -
Page 12: Capacity Ratings Imperial
265485-XTG-B-1208 TABLE 2: CAPACITY RATINGS IMPERIAL Cooling Capacity Nominal Gas Heat Capacity Model Electric Sound (80 / 67-95°F) Heat Rating Gas Line Input Output Temp Capacity Size (dB) (MBH) (MBH) Rise (°F) Cooling Cap. (MBH) Options (in. OD) (kW) 7, 14, 10.5 18, 27 15-45... -
Page 13: Dr090 Cooling Capacity - Imperial
265485-XTG-B-1208 TABLE 4: DR090 COOLING CAPACITY - IMPERIAL Air On Temperature of Air on Condenser Coil 75°F Temperature of Air on Condenser Coil 85°F Evap. Coil Sensible Capacity (MBH) Sensible Capacity (MBH) Tot. Tot. Tot. Tot. Return Dry Bulb (°F) Return Dry Bulb (°F) Cap. -
Page 14: Dr090 Cooling Capacity - Metric
265485-XTG-B-1208 TABLE 5: DR090 COOLING CAPACITY - METRIC Air On Temperature of Air on Condenser Coil 24°C Temperature of Air on Condenser Coil 29°C Evap. Coil Tot. Tot. Tot. Tot. Sensible Capacity (kW) Sensible Capacity (kW) Return Dry Bulb (°F) Return Dry Bulb (°C) Cap. -
Page 15: Dr090 Cooling Capacity (Alternate Reheat Mode) - Imperial
265485-XTG-B-1208 TABLE 6: DR090 COOLING CAPACITY (ALTERNATE REHEAT MODE) - IMPERIAL Air On Temperature of Air on Condenser Coil 75°F Temperature of Air on Condenser Coil 85°F Evap. Coil Sensible Capacity (MBH) Sensible Capacity (MBH) Tot. Tot. Tot. Tot. Return Dry Bulb (°F) Return Dry Bulb (°F) Cap. -
Page 16: Dr090 Cooling Capacity (Alternate Reheat Mode) - Metric
265485-XTG-B-1208 TABLE 7: DR090 COOLING CAPACITY (ALTERNATE REHEAT MODE) - METRIC Air On Temperature of Air on Condenser Coil 24°C Temperature of Air on Condenser Coil 29°C Evap. Coil Tot. Tot. Tot. Tot. Sensible Capacity (kW) Sensible Capacity (kW) Return Dry Bulb (°F) Return Dry Bulb (°C) Cap. -
Page 17: Dr090 Moisture Removal (Alternate Mode)
265485-XTG-B-1208 DR090 Moisture Removal @ 3000 cfm Alternate Mode @ various indoor (dry bulb / wet bulb) conditions Outdoor Temperature (°F) 75db/71wb 80db/71wb 75db/67wb 85db/71wb 80db/67wb 85db/67wb FIGURE 4 - DR090 MOISTURE REMOVAL (ALTERNATE MODE) - IMPERIAL DR090 Moisture Removal @ 3000 cfm Normal Mode @ various indoor (dry bulb / wet bulb) conditions Outdoor Temperature (°F) -
Page 18: Dr090 Moisture Removal (Alternate Mode)
265485-XTG-B-1208 DR090 Moisture Removal @ 1.42 m Alternate Mode @ various indoor (dry bulb / wet bulb) conditions 18.3 23.9 29.4 35.0 40.6 Outdoor Temperature (°C) 23.9db/21.7wb 26.7db/21.7wb 23.9db/19.4wb 29.4db/21.7wb 26.7db/19.4wb 29.4db/19.4wb FIGURE 6 - DR090 MOISTURE REMOVAL (ALTERNATE MODE) - METRIC DR090 Moisture Removal @ 1.42 m Normal Mode @ various indoor (dry bulb / wet bulb) conditions... -
Page 19: Electrical Data 7-1/2 Ton
265485-XTG-B-1208 TABLE 8: ELECTRICAL DATA 7-1/2 TON Max Fuse Size Min. Circuit Supply Blower Pwr Exh w/Power w/Power Max Fuse Compressors Ampacity Electric Motor FLA Motor Exhaust Exhaust Size (Amps) Actual Heater Motors (Amps) Heater (Amps) (Amps) Voltage Amps Model No. None 22.9 23.8 25.1 26.0... -
Page 20: Blower Performance 7-1/2 Ton Standard Motor - Side Duct (Imperial)
265485-XTG-B-1208 TABLE 9: BLOWER PERFORMANCE 7-1/2 TON STANDARD MOTOR - SIDE DUCT (IMPERIAL) Turns Open (iwg) Watts Watts Watts Watts Watts Watts 3580 1340 1.44 3351 1203 1.29 3436 1368 1.47 3158 1213 1.30 2929 1076 1.15 3310 1402 1.50 2983 1229 1.32... -
Page 21: Blower Performance 7-1/2 Ton Optional Motor - Side Duct (Metric)
265485-XTG-B-1208 TABLE 12: BLOWER PERFORMANCE 7-1/2 TON OPTIONAL MOTOR - SIDE DUCT (METRIC) Turns Open (Pa) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) (kW) 1.86 1.67 1.33 1.85 1.76 1.41 1.69 1.52 1.22 1.84 1.87 1.49 1.66 1.61 1.29... -
Page 22: Blower Performance 7-1/2 Ton Optional Motor - Downshot (Imperial)
265485-XTG-B-1208 TABLE 15: BLOWER PERFORMANCE 7-1/2 TON OPTIONAL MOTOR - DOWNSHOT (IMPERIAL) Turns Open (iwg) Watts Watts Watts Watts Watts Watts 3786 1702 1.83 3476 1489 1.60 3727 1791 1.92 3409 1570 1.68 3099 1357 1.46 3994 2117 2.27 3661 1881 2.02 3335... -
Page 23: Additional Static Resistance (Imperial)
265485-XTG-B-1208 TABLE 17: ADDITIONAL STATIC RESISTANCE (IMPERIAL) Electric Heat KW Cooling Only Economizer 1900 0.06 0.02 0.05 0.06 0.07 0.08 0.10 2100 0.07 0.02 0.06 0.07 0.08 0.09 0.11 2300 0.08 0.02 0.07 0.08 0.09 0.10 0.13 2500 0.09 0.02 0.08 0.09 0.10... -
Page 24: Additional Static Resistance (Metric)
265485-XTG-B-1208 TABLE 18: ADDITIONAL STATIC RESISTANCE (METRIC) Electric Heat kW Cooling Only Economizer 0.89 14.9 12.4 14.9 17.4 19.9 24.8 0.99 17.4 14.9 17.4 19.9 22.4 27.3 1.08 19.9 17.4 19.9 22.4 24.8 32.3 1.18 22.4 19.9 22.4 24.8 27.3 34.8 1.27 27.3... -
Page 25: Imperial
265485-XTG-B-1208 TABLE 19: ELECTRIC HEAT MINIMUM SUPPLY AIR TABLE 20: ELECTRIC HEAT MINIMUM SUPPLY AIR - IMPERIAL - METRIC HEATER UNIT MODEL SIZE, NOMINAL TONS HEATER UNIT MODEL SIZE, NOMINAL TONS VOLTAGE VOLTAGE MINIMUM SUPPLY AIR CFM MINIMUM SUPPLY AIR m 2250 1.06 2250... -
Page 26: Unit Weight
265485-XTG-B-1208 TABLE 23: 6 POINT LOAD WEIGHT Locations (lbs. (kg.)) Model (77.6) (69.9) (63.0) (91.2) (102.0) (117.0) TABLE 24: UNIT WEIGHT Shipping Weight Operating Weight Model lbs. (kg) lbs. (kg) 1163 (527.5) 1148 (520.7) F R O N T L E F T FIGURE 10 - UNIT 6 POINT LOAD 30-11/32 See Detail... -
Page 27: Unit Clearances
265485-XTG-B-1208 G a s P i p e I n l e t 2 - 3 / 8 DETAIL C ( 6 0 ) DETAIL B 5 - 1 / 4 3 - 3 / 4 B a s e ( 1 3 5 ) ( 9 5 ) 1 7 - 1 3 / 1 6... -
Page 28: Curb
265485-XTG-B-1208 2 T Y P ( 5 0 ) 3 0 - 1 / 2 ( 5 8 5 ) 5 0 - 1 / 2 ( 7 7 5 ) ( 1 2 8 5 ) ( 1 0 0 ) 8 0 - 5 / 8 R E T U R N ( 6 6 0 ) -
Page 29: Rear Duct Dimensions
265485-XTG-B-1208 18-1/4 (465) REAR DUCT DIMENSIONS Return DIMENSION MODEL “A” “B” “C” Supply 28 1/4 18 1/16 28 1/4 DR090 (717) (459) (717) 18-1/4 (465) 2-31/32 (75) 5-5/32 (130) 31-11/16 NOTE: (XXX) indicates millimeters (805) FIGURE 15 - REAR DUCT DIMENSIONS 58 1/4 88 1/4 (148) -
Page 30: Factory Installed Downflow
265485-XTG-B-1208 TABLE 27: ECONOMIZER USAGE Application Description Model Bottom Return Downflow economizer with barometric relief 2EE04705424 Side Return Horizontal economizer without barometric relief 2EE04705524 ERV or End Return Slab Economizer, 50” tall cabinet 2EE04705224 1. Barometric relief must be ordered seperately and installed in duct work. 2. -
Page 31: Field Installed Horizontal Economizer W
265485-XTG-B-1208 2EE04705524 Return Air Damper Field Installed Duct Work 2EE04705524 Fresh Air Damper 2PE047032XX 1EH0408 Power Exhaust 1EH0408 2EE04705524 Barometric Barometric Fresh Air Hood Relief Damper Relief Hood FIGURE 19 - FIELD INSTALLED HORIZONTAL ECONOMIZER W/POWER EXHAUST 1EH0409 Fresh Air Hood 2EE04705X24 2PE047032XX Slab Economizer... -
Page 32: Slab Economizer End Return W/Power
265485-XTG-B-1208 1EH0409 Fresh Air Hood Field Installed Duct Work 2EE04705X24 Slab Economizer 1EH0409 Barometric Relief Hood 2PE047032XX 1EH0409 Power Exhaust Barometric Relief Damper FIGURE 21 - SLAB ECONOMIZER END RETURN W/POWER EXHAUST Johnson Controls Unitary Products... -
Page 33: Typical Low Voltage Field Wiring
265485-XTG-B-1208 THERMOSTAT ( RCB ) TERMINALS REHEAT CONTROL BOARD TERMINAL BLOCK DEHUMIDISTAT TO REMOTE SENSOR 2ET04701324 IF USED Electronic programmable Thermostat 2ET0770010024 ( includes subbase). Terminals A1 and A2 provide a relay output to close the outdoor economizer dampers when the thermostat switches to the set-back position. -
Page 34: Field Wiring Disconnect - Cooling Unit With Or Without Electric Heat
265485-XTG-B-1208 TERMINAL BLOCK TB1 FIELD SUPPLIED DISCONNECT GROUND THREE PHASE POWER SUPPLY FIGURE 23 - FIELD WIRING DISCONNECT - COOLING UNIT WITH OR WITHOUT ELECTRIC HEAT CONTACTOR 1M FIELD SUPPLIED DISCONNECT GROUND THREE PHASE POWER SUPPLY FIGURE 24 - FIELD WIRING DISCONNECT - COOLING UNIT WITH GAS HEAT Johnson Controls Unitary Products... -
Page 35: Typical Dr090 Cooling Unit With Gas Heat Wiring Diagram
265485-XTG-B-1208 FIGURE 25 - TYPICAL DR090 COOLING UNIT WITH GAS HEAT WIRING DIAGRAM Johnson Controls Unitary Products... -
Page 36: Typical Dr090 Cooling Unit With/Without Electric Heat Wiring Diagram
265485-XTG-B-1208 FIGURE 26 - TYPICAL DR090 COOLING UNIT WITH/WITHOUT ELECTRIC HEAT WIRING DIAGRAM Johnson Controls Unitary Products... - Page 37 265485-XTG-B-1208 FIGURE 27 - TYPICAL DR090 REHEAT WIRING DIAGRAM Johnson Controls Unitary Products...
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Page 38: Guide Specifications
Units shall be manufactured by Unitary Products in an ISO design, constructed of a non corrosive material, internally ® 9001 certified facility. YORK® Predator MagnaDRY™ units sloped and conforming to ASHRAE 62-B9 standards. Con- are convertible single packages with a common footprint cab- densate connection shall be a minimum of ¾”... -
Page 39: Gas Heat
265485-XTG-B-1208 Refrigerant Circuit and Refrigerant Safety Components shall air entering temperature of 40 ºF/4.4°C. Burners shall be of include: the in-shot type, constructed of aluminum-coated steel. All gas piping shall enter the unit cabinet at a single location, Independent fixed-orifice or thermally operated expan- through either the side or bottom, without any field modifica- sion devices. -
Page 40: Power Exhaust
PHASE MONITOR - Designed to prevent damage in out- of-phase condition. Subject to change without notice. Printed in U.S.A. 265485-XTG-B-1208 Copyright © 2009 by Johnson Controls, Inc. All rights reserved. Supersedes: 265485-YTG-A-0806 Johnson Controls Unitary Products 5005 York Drive Norman, OK 73069...
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