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York Predator DM090 Installation Instruction

Single package air conditioners and single package electric units
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See also: Technical Manual , Installation Manual
INSTALLATION
INSTRUCTION
TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . 6
NOTES CAUTIONS AND WARNINGS . . . . . . . 6
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . 6
REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 7
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . 18
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
COOLING OPERATION INSTRUCTIONS . . . 29
SEQUENCE OF OPERATIONS . . . . . . . . . . . 29
NORMAL MAINTENANCE . . . . . . . . . . . . . . . 33
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . 33
COOLING OPERATIONS . . . . . . . . . . . . . . . . 37
Complete Table of Contents on following pages.
SAVE THIS MANUAL
SINGLE PACKAGE AIR CONDITIONERS AND
SINGLE PACKAGE ELECTRIC UNITS
DM090 THROUGH 150
(7-1/2 TO 12-1/2 TON)
(380 V, 3 PHASE, 60 Hz)
DM
090
120
150
035-17311-000 REV A (1200)

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  • Page 1 INSTALLATION INSTRUCTION SINGLE PACKAGE AIR CONDITIONERS AND SINGLE PACKAGE ELECTRIC UNITS TABLE OF CONTENTS DM090 THROUGH 150 GENERAL ......6 SAFETY CONSIDERATIONS .
  • Page 2 035-17311-000 REV A (1200) TABLE OF CONTENTS PROTECTION ....... . 30 CONTINUOUS BLOWER .
  • Page 3 035-17311-000 REV A (1200)) LIST OF FIGURES PG. # PG. # 1 UNIT SHIPPING BRACKET ....7 17 FIELD WIRING 24 VOLT THERMOSTAT ..16 2 CONDENSER COVERING .
  • Page 4 035-17311-000 REV A (1200) LIST OF TABLES PG. # PG. #\ 1 PRODUCT NOMENCLATURE ....5 18 10T STD MTR DOWN SHOT BLWR PERF ..22 19 10T OPT MTR DOWN SHOT BLWR PERF .

  • Page 5: Product Nomenclature

    035-17311-000 REV A (1200)) D M 120 C 00 A 3 A AA 1 A TABLE 1: PRODUCT NOMENCLATURE Model Number Model # Options Description D = Air Conditioner, Single Package Product Category M = Standard Efficiency Product Identifier Nominal Cooling Capacity 090 = 7-1/2 Ton 120= 10 Ton 150 = 12-1/2 Ton...

  • Page 6: General

    Additional information is available in the following reference forms: GENERAL • - Technical Guide  YORK Predatorunits are single package air conditioners • - General Installation designed for outdoor installation on a rooftop or slab and for • - Pre-start & Post-start Check List non-residential use.

  • Page 7: Installation

    035-17311-000 REV A (1200)) INSTALLATION This product must be installed in strict compliance with the enclosed installation instructions and any Toolless applicable local, state and national codes includ- Doorknobs ing, but not limited to, building, electrical, and mechanical codes. Installation PRECEDING INSTALLATION Instruction Packet...

  • Page 8: Location

    (3 sides) Roof curbs in eight- and fourteen-inch and lifting holes) heights. Roof curbs for transitioning from York Sunline™ footprint to the DM Series footprint are also available Side entry power Tool-less door (field-installed accessory) and control wiring...

  • Page 9: Rigging And Handling

    If a unit is to be installed on a roof curb other than FIGURE 6 : UNIT 4 POINT LOAD a YORK roof curb, gasketing must be applied to all surfaces that come in contact with the unit under- side.

  • Page 10: Horizontal Economizer

    035-17311-000 REV A (1200) FIGURE 8 : HORIZONTAL ECONOMIZER FIGURE 9 : DOWNFLOW ECONOMIZER HOOD DETAIL Unitary Products Group...

  • Page 11: Unit Dimensions

    035-17311-000 REV A (1200)) FIGURE 10 : UNIT DIMENSIONS NOTE: A one-inch clearance must be provided between any combustible material l and the supply ductwork for a distance of 3 feet from the unit. Do not permit overhanging structures or shrubs to DETAIL A DETAIL B obstruct condenser air discharge outlet, combus-...

  • Page 12: Bottom Duct Openings

    035-17311-000 REV A (1200) FIGURE 11 : BOTTOM DUCT OPENINGS FIGURE 12 : REAR DUCT DIMENSIONS Unitary Products Group...

  • Page 13: Predator™ Roof Curb Dimensions

    035-17311-000 REV A (1200)) FIGURE 13 : PREDATOR™ ROOF CURB DIMENSIONS FIGURE 14 : SUNLINE™ TO PREDATOR™ TRANSITION ROOF CURBS Unitary Products Group...

  • Page 14: Ductwork

    035-17311-000 REV A (1200) DUCTWORK Ductwork should be designed and sized according to the methods in Manual D of the Air Conditioning Contractors of America (ACCA) or as recommended by any other recog- nized authority such as ASHRAE or SMACNA. A closed return duct system should be used.

  • Page 15: Power And Control Wiring

    A disconnect must be utilized for these units. Factory installed disconnects are available. If installing a disconnect  (field supplied or York International supplied accessory), refer to Figure 4 for the recommended mounting location. Avoid damage to internal components if drilling holes for disconnect mounting.

  • Page 16: Field Wiring 24 Volt Thermostat

    035-17311-000 REV A (1200) FIGURE 17 : FIELD WIRING 24 VOLT THERMOSTAT FIGURE 18 : FIELD WIRING DISCONNECT Unitary Products Group...

  • Page 17: Predator 380V-3-60 Hz

    TABLE 12: PREDATOR 380V -3-60 HZ Minimum Circuit Max Fuse Size w/ MCA W/ Power Exhaust Max Fuse Size * Ampacity Pwr. Exh. * OD Fan Model Compressors Motor, Supply Blower Pwr Exh Motors Motor Electric Heater Rated Actual Heater Amps Amps Amps...

  • Page 18: Accessories

    035-17311-000 REV A (1200) TABLE 13: PHYSICAL DATA Models Component Blower, Centrifugal (Dia. X Wd. in.) 15 x 15 15 x 15 15 x 15 Evaporator Motor, Standard (HP) 1-1/2 Blower Motor, Optional (HP) Rows Fins per Inch Evaporator Coil Height (in.) 10.6 13.2...

  • Page 19: Set Point Adjustment

    035-17311-000 REV A (1200)) FIGURE 19 : ENTHALPY SET POINT CHART SET POINT ADJUSTMENT The enthalpy set point for the dampers may now be set by selecting the desired setpoint. Adjust as follows: Extreme care must be exercised in turning both the setpoint and minimum position adjusting •...

  • Page 20: Start-Up

    035-17311-000 REV A (1200) START-UP PHASING Predator units are properly phased at the factory. Check for proper compressor rotation. If the blower or compressors rotate in the wrong direction at start-up, the electrical connec- tion to the unit is misphased. Change the incoming line con- nection phasing obtain...
  • Page 21 035-17311-000 REV A (1200)) TABLE 16: 7-1/2 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE TURNS OPEN 3715 1573 1.69 3634 1434 1.54 3431 1265 1.36 3218 0.97 3024 1.05 3650 1657 1.78 3510 1490 1.60 3320 1313 1.41 3079 1145 1.23 2832 0.87...
  • Page 22 035-17311-000 REV A (1200) TABLE 18: 10 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE TURNS OPEN 3896 1639 1.76 3688 1453 1.56 3447 1268 1.36 4040 2076 2.23 4005 1934 2.07 3790 1698 1.82 3569 1508 1.62 3333 1330 1.43 3057 1147 1.23...
  • Page 23 035-17311-000 REV A (1200)) TABLE 20: 12-1/2 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE TURNS OPEN 5078 3630 3.89 4809 3103 3.33 4594 3053 3.27 4360 2478 2.66 4090 2093 2.24 3812 1798 1.93 4865 3456 3.71 4584 2961 3.17 4349 2912 3.12...
  • Page 24 035-17311-000 REV A (1200) TABLE 22: 7-1/2 TON STANDARD MOTOR SIDE SHOT BLOWER PERFORMANCE TURNS OPEN 3736 1476 1.58 3487 1284 1.38 3231 1109 1.19 3001 1.04 3572 1514 1.62 3389 1339 1.44 3094 1151 1.23 2764 1.04 2446 0.88 3422 1558 1.67...

  • Page 25: Air Balance

    035-17311-000 REV A (1200)) TABLE 24: 10 TON STANDARD MOTOR SIDE SHOT BLOWER PERFORMANCE TURNS OPEN 4368 1843 1.98 4132 1624 1.74 3870 1423 1.53 4515 2192 2.35 4213 1885 2.02 4020 1692 1.81 3791 1491 1.60 3499 1283 1.38 4192 2027 2.17...
  • Page 26 035-17311-000 REV A (1200) TABLE 26: 12-1/2 TON STANDARD MOTOR SIDE SHOT BLOWER PERFORMANCE TURNS OPEN 5201 3162 3.39 4966 2796 3.00 4681 2405 2.58 4355 2054 2.20 5220 3395 3.64 4942 2980 3.20 4657 2608 2.80 4358 2230 2.39 4007 1890 2.03...
  • Page 27 035-17311-000 REV A (1200)) FIGURE 21 : PREDATOR STANDARD EFFICIENCY UNITS INDOOR COIL PRESSURE DROP VS. AIRFLOW Unitary Products Group...

  • Page 28: Supply Air Drive Adjustment

    035-17311-000 REV A (1200) TABLE 28: INDOOR BLOWER SPECIFICATIONS MOTOR MOTOR SHEAVE BLOWER SHEAVE MODEL BELT Eff. Frame Datum Dia. (in.) Bore (in.) Model Datum Dia. (in.) Bore (in.) Model 1-1/2 1725 1.15 3.4 - 4.4 1VM50 AK94 DM090 1725 1.15 3.4 - 4.4 1VM50...

  • Page 29: Cooling Operation Instructions

    035-17311-000 REV A (1200)) TABLE 29: MOTOR SHEAVE DATUM DIAMETERS Measure the system Amperage draw across all legs of 3 phase power wires. 1VM50x7/8 1VP56x1-1/8 (1-1/2, 2 & 3 HP Motor) (5 HP Motor) Measure the condenser fan amps draw. Datum Datum Turns Open...

  • Page 30: Protection

    035-17311-000 REV A (1200) The unit control board monitors the temperature limit switch If there is an initial call for both stages of cooling, the UCB will of electric heat units. delay energizing compressor #2 by 30 seconds in order to avoid a power rush.

  • Page 31: Freezestat

    035-17311-000 REV A (1200)) Should a low-pressure switch open three times within one Remove the call for cooling, by raising thermostat setting hour of operation, the UCB will lock-out the associated com- higher than the space temperature. This resets any pressure pressor and flash a code (Table 33).
  • Page 32 035-17311-000 REV A (1200) TABLE 31: 10 TON STANDARD EFFICIENCY SUPERHEAT CHARGING Superheat at Compressor Suction (°F) Airflow = 4000 CFM Outdoor Temp (°F) Indoor WB Temp (°F) 11.1 12.9 14.7 16.6 18.4 20.2 22.4 24.7 26.9 29.1 10.5 12.6 14.8 16.9 19.5...

  • Page 33: Normal Maintenance

    035-17311-000 REV A (1200)) NORMAL MAINTENANCE TROUBLESHOOTING Troubleshooting of components may require open- Prior to any of the following maintenance proce- ing the electrical control box with the power con- dures, shut off all power to the unit to prevent per- nected to the unit.

  • Page 34: Unit Control Board Flash Codes

    035-17311-000 REV A (1200) TABLE 33: UNIT CONTROL BOARD FLASH CODES Flash Code Description On Steady Control Failure - Replace Control Heart Beat Normal Operation 1 Flash Not Applicable 2 Flashes Control waiting ASCD 3 Flashes HPS1 - Compressor Lock out 4 Flashes HPS2 - Compressor Lock out 5 Flashes...

  • Page 35: Basic Troubleshooting Flowchart

    035-17311-000 REV A (1200)) Monitored Loss of Call for Heat Off Systems Programming? Call for Heating? Problem? Heating? Program Call for 2nd Unit Call for Trip/Failure Stage Control Heat Cooling Board Energize ID Call for First Monitor Blower Motor Cooling? Stage? Call for 1st Turn off ID...

  • Page 36: Trip Failure Flow Chart

    035-17311-000 REV A (1200) FIGURE 23 : TRIP FAILURE FLOW CHART Unitary Products Group...

  • Page 37: Cooling Operations

    035-17311-000 REV A (1200)) COOLING OPERATIONS If installed, check the position of the economizer blades. If the blades are open, the economizer is providing free On calls for cooling, if the compressors are operating but the cooling and the compressors will not immediately oper- supply air blower motor does not energize after a short delay ate.
  • Page 38 These options are not enabled by default. Local minals. York distributors can test the UCB for this programming. If 24 volts is present at the UCB Y2 terminal and none of 15. If none of the above corrected the error, test the integrity the protection switches have opened, the UCB may have of the UCB.
  • Page 39 These options are not enabled by default. Local remove any call for cooling. This will reset any compres- York distributors can test the UCB for this programming. sor lock outs. 12. If none of the above corrected the error, test the integrity NOTE: While the above step will reset any lock outs, com- of the UGB.
  • Page 40 035-17311-000 REV A (1200) Unitary Products Group...
  • Page 42 035-17311-000 REV A (1200)
  • Page 43 035-17311-000 REV A (1200)) Unitary Products Group...
  • Page 44 Subject to change without notice. Printed in U.S.A. C5-17240-000 Supersedes: Nothing) Copyright © by Unitary Products Group 2000. All rights reserved. 035-17311-000 REV A (1200)) Unitary 5005 Norman Products York Group Drive 73069...

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