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035-17311-000 REV A (1200))

Unitary Products Group

15

POWER AND CONTROL WIRING

Field wiring to the unit, fuses, and disconnects must conform
to provisions of National Electrical Code (NEC), ANSI/NFPA
70 – Latest Edition, and/or local ordinances. The unit must
be electrically grounded in accordance with NEC ANSI/NFPA
– Latest Edition and/or local codes. In Canada, the unit must
conform to CSA C22.1.

Voltage tolerances which must be maintained at the com-
pressor terminals during starting and running conditions are
indicated on the unit Rating Plate and Table 5.

The internal wiring harnesses furnished with this unit are an
integral part of the design certified unit. Field alteration to
comply with electrical codes should not be required. If any of
the wire supplied with the unit must be replaced, replacement
wire must be of the type shown on the wiring diagram and the
same minimum gauge as the replaced wire.

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.

NOTE: Since not all local codes allow the mounting of a dis-
connect on the unit, please confirm compliance with local
code before mounting a disconnect on the unit.

Electrical line must be sized properly to carry the load. USE
COPPER CONDUCTORS ONLY. Each unit must be wired
with a separate branch circuit fed directly from the meter
panel and properly fused.

Refer to Figures 16, 17 and 18 for typical field wiring and to
the appropriate unit wiring diagram mounted inside control

doors for control circuit and power wiring information.

POWER WIRING DETAIL

Units are factory wired for the voltage shown on the unit
nameplate. Refer to Electrical Data Table 12 to size power
wiring, fuses, and disconnect switch.

Power wiring is brought into the unit through the side of the
unit or the basepan inside the curb.

Avoid damage to internal components if drilling
holes for disconnect mounting.

When connecting electrical power and control wir-
ing to the unit, water-proof connectors must be
used so that water or moisture cannot be drawn
into the unit during normal operation. The above
water-proofing conditions will also apply when
installing a field supplied disconnect switch.

FIGURE 16 : ELECTRONIC THERMOSTAT FIELD

WIRING

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Содержание PREDATOR DM 090

Страница 1: ...35 17311 000 REV A 1200 DM 090 120 150 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 ...

Страница 2: ...HECKING SUPPLY AIR CFM 20 BLOWER ROTATION 20 BELT TENSION 29 AIR BALANCE 25 CHECKING AIR QUANTITY 25 SUPPLY AIR DRIVE ADJUSTMENT 28 COOLING OPERATION INSTRUCTIONS 29 COOLING SYSTEM PRELIMINARY OPERATION 29 TURN ON THE POWER TO THE UNIT 29 POST START CHECK LIST 29 PROPER SYSTEM PRESSURES FOR BOTH CIRCUITS 29 SHUT DOWN 29 SEQUENCE OF OPERATIONS 29 OVERVIEW 29 SAFETY CONTROLS 29 PROTECTION 30 CONTINU...

Страница 3: ...10 10 UNIT DIMENSIONS 11 11 BOTTOM DUCT OPENINGS 12 12 REAR DUCT DIMENSIONS 12 13 PREDATOR ROOF CURB DIMENSIONS 13 14 TRANSITION ROOF CURBS 13 15 CONDENSATE DRAIN 14 16 ELECTRONIC THERMOSTAT FIELD WIRING 15 PG 17 FIELD WIRING 24 VOLT THERMOSTAT 16 18 FIELD WIRING DISCONNECT 16 19 ENTHALPY SET POINT CHART 18 20 BELT ADJUSTMENT 19 21 PREDATOR STD EFF UNITS INDOOR COIL PRESSURE DROP VS AIRFLOW 27 22 ...

Страница 4: ... DOWN SHOT BLWR PERF 21 17 7 1 2T OPT MTR DOWN SHOT BLWR PERF 21 PG 18 10T STD MTR DOWN SHOT BLWR PERF 22 19 10T OPT MTR DOWN SHOT BLWR PERF 22 20 12 1 2T STD MTR DOWN SHOT BLWR PERF 23 21 12 1 2T OPT MTR DOWN SHOT BLWR PERF 23 22 7 1 2T STD MTR SIDE SHOT BLWR PERF 24 23 7 1 2T OPT MTR SIDE SHOT BLWR PERF 24 24 10T STD MTR SIDE SHOT BLWR PERF 25 25 10T OPT MTR SIDE SHOT BLWR PERF 25 26 12 1 2T STD...

Страница 5: ... B 1 C 2 D 1 2E 3 F 4 G 1 3 H 1 4 J 1 2 3 K 1 2 4 L 1 3 4 M 1 2 3 4 N 2 3 P 2 4 Q 2 3 4 R 3 4 AA Additional Options AA None AB PM AC CG AD DFS AE PM CG AF PM DFS AG CG DFS AH PM CG DFS TA TCC TB TCC PM TC TCC CG TD TCC DFS TE TCC PM CG TF TCC PM DFS TG TCC CG DFS TH TCC PM CG DFS 1 Product Generation 1 First Generation A Product Style A Style A TABLE 2 AIRFLOW ABBREVIATIONS ABBREVIATION MEANING BR...

Страница 6: ...For use as a cooling only unit or cooling unit with supple mental electric heat 2 For outdoor installation only 3 For installation on combustible material and may be installed directly on combustible flooring or in the U S on wood flooring or Class A Class B or Class C roof cov ering materials REFERENCE Additional information is available in the following reference forms Technical Guide General In...

Страница 7: ... U S A 1 National Electrical Code ANSI NFPA No 70 Latest Edition 2 Local building codes Refer to Tables 5 6 for unit application data If components are to be added to a unit to meet local codes they are to be installed at the dealer s and or customer s expense This product must be installed in strict compliance with the enclosed installation instructions and any applicable local state and national...

Страница 8: ...trol board w screw connector for T stat wiring Disconnect location optional disconnect switch Filter access 2 throw away Roof curbs in eight and fourteen inch heights Roof curbs for transitioning from York Sunline footprint to the DM Series footprint are also available field installed accessory Slide out drain pan with steel 3 4 FPT connection Compressor 1 access high efficiency compressor w crank...

Страница 9: ...roof curb gasketing must be applied to all surfaces that come in contact with the unit under side TABLE 7 UNIT WEIGHTS Model Shipping Weight1 lb 1 Weights include largest gas heat option Operating Weight2 lb 2 54kW heater DM090 1056 1051 DM120 1121 1116 DM150 1200 1195 Econ 85 84 w PE 150 148 Elec Heat2 49 49 FIGURE 5 UNIT CENTER OF GRAVITY All panels must be secured in place when the unit is lift...

Страница 10: ...035 17311 000 REV A 1200 10 Unitary Products Group FIGURE 8 HORIZONTAL ECONOMIZER FIGURE 9 DOWNFLOW ECONOMIZER HOOD DETAIL ...

Страница 11: ...r unit operation FIGURE 10 UNIT DIMENSIONS Do not permit overhanging structures or shrubs to obstruct condenser air discharge outlet combus tion air inlet or vent outlets TABLE 10 UNIT CLEARANCES Top1 1 Units must be installed outdoors Overhanging struc ture or shrubs should not obstruct condenser air dis charge outlet 72 Right 12 Front 36 Left 36 Rear2 2 To remove the slide out drain pan a rear c...

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

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

Страница 14: ...e pipe threads Install condensate drain line from the 3 4 inch NPT female connection on the unit to an open drain COMPRESSORS The compressors are mounted on elastomer insulators The mounting bolts have been fully tightened for shipping Do not loosen the compressor mounting bolts FILTERS Two inch filters are supplied with each unit One inch filters may be used with no modification to the filter rac...

Страница 15: ...sory refer to Figure 4 for the recommended mounting location NOTE Since not all local codes allow the mounting of a dis connect on the unit please confirm compliance with local code before mounting a disconnect on the unit Electrical line must be sized properly to carry the load USE COPPER CONDUCTORS ONLY Each unit must be wired with a separate branch circuit fed directly from the meter panel and ...

Страница 16: ...035 17311 000 REV A 1200 16 Unitary Products Group FIGURE 17 FIELD WIRING 24 VOLT THERMOSTAT FIGURE 18 FIELD WIRING DISCONNECT ...

Страница 17: ...2 25 3 26 6 28 1 29 3 30 30 30 30 2TP04512446 24 0 15 0 22 8 32 4 33 6 35 1 36 4 35 35 40 40 2TP04513646 34 0 21 3 32 4 44 3 45 6 47 1 48 3 45 50 50 50 10 380 9 0 75 1 6 4 1 5 3 2 2 None 27 6 28 8 29 8 31 0 35 35 35 35 2TP04511846 18 0 11 3 17 2 27 6 28 8 29 8 31 0 35 35 35 35 2TP04512446 24 0 15 0 22 8 33 6 35 1 36 4 37 9 35 40 40 40 2TP04513646 34 0 21 3 32 4 45 6 47 1 48 3 49 8 50 50 50 50 2TP0...

Страница 18: ...ponents including the filters the gasket ing and the hardware for assembling are packaged and located between the condenser coil section and the main unit cabinet To assemble the rain hood 1 Remove the hood components filters gasketing and assembly hardware from the area between the coils and main cabinet 2 Follow the instructions included with the hood to com plete the installation TABLE 13 PHYSI...

Страница 19: ...rn the minimum position adjusting screw fully clockwise and then energize and de energize terminals R to G With terminals R to G energized turn the minimum position screw counterclockwise until the desired minimum position has been attained FIGURE 19 ENTHALPY SET POINT CHART Extreme care must be exercised in turning both the setpoint and minimum position adjusting screws to prevent twisting them o...

Страница 20: ...or proper supply air blower rotation If the blower is rotating backwards the line voltage at the unit point of power connection is misphased See PHASING BELT TENSION The tension on the belt should be adjusted as shown in Fig ure 20 Scroll compressors require proper rotation to oper ate correctly Units are properly phased at the fac tory Do not change the internal wiring to make the blower condense...

Страница 21: ...variable pitch motor sheave where 0 Turns Open is fully closed 5 W Watts TABLE 17 7 1 2 TON OPTIONAL MOTOR DOWN SHOT BLOWER PERFORMANCE1 2 ESP3 TURNS OPEN4 0 1 2 3 4 5 CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP 0 2 3992 1904 2 04 3798 1679 1 80 0 4 3930 2017 2 16 3734 1786 1 92 3486 1552 1 66 0 6 3947 2176 2 33 3670 1895 2 03 3394 1641 1 76 3084 1401 1 50 0 8 4138 2384 2 56 ...

Страница 22: ...s fully closed 5 W Watts TABLE 19 10 TON OPTIONAL MOTOR DOWN SHOT BLOWER PERFORMANCE1 2 ESP3 TURNS OPEN4 0 1 2 3 4 5 CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP 0 4 4965 3485 3 74 4875 3150 3 38 4613 2739 2 94 4322 2374 2 55 4156 2106 2 26 3907 1860 1 99 0 6 4876 3416 3 66 4651 2997 3 21 4359 2582 2 77 4038 2220 2 38 3860 1966 2 11 3590 1724 1 85 0 8 4713 3291 3 53 4387 2823 ...

Страница 23: ...CE1 2 ESP3 TURNS OPEN4 0 1 2 3 4 5 CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP 0 4 5994 5400 5 79 5565 4369 4 69 5488 4169 4 47 5264 3599 3 86 4990 3085 3 31 4738 2812 3 02 0 6 5824 5216 5 59 5368 4186 4 49 5289 3991 4 28 5049 3437 3 69 4763 2937 3 15 4491 2655 2 85 0 8 5641 5022 5 39 5170 4012 4 30 5076 3807 4 08 4822 3272 3 51 4528 2790 2 99 4235 2497 2 68 1 0 5444 4819 5 1...

Страница 24: ... refers to the setting of the variable pitch motor sheave where 0 Turns Open is fully closed 5 W Watts TABLE 23 7 1 2 TON OPTIONAL MOTOR SIDE SHOT BLOWER PERFORMANCE1 2 ESP3 TURNS OPEN4 0 1 2 3 4 5 CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP 0 4 3910 1726 1 85 0 6 3857 1842 1 98 3597 1430 1 53 0 8 3804 1957 2 10 3503 1689 1 81 3172 1430 1 53 1 0 3774 2088 2 24 3406 1778 1 91 ...

Страница 25: ...en deducted from the total static pressure of the blower 4 Turns Open refers to the setting of the variable pitch motor sheave where 0 Turns Open is fully closed 5 W Watts TABLE 25 10 TON OPTIONAL MOTOR SIDE SHOT BLOWER PERFORMANCE1 2 ESP3 TURNS OPEN4 0 1 2 3 4 5 CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP 0 2 5067 2614 2 80 4809 2290 2 46 0 4 5179 3112 3 34 4884 2703 2 90 47...

Страница 26: ...FM W5 BHP CFM W5 BHP CFM W5 BHP CFM W5 BHP 0 4 6447 5315 5 70 6207 4760 5 1046 5966 4205 4 51 5717 3716 3 98 5470 3307 3 55 0 6 6110 4917 5 27 5965 4464 4 79 5740 4023 4 31 5430 3501 3 75 5126 3054 3 28 0 8 5772 4519 4 85 5741 4274 4 58 5503 3821 4 10 5162 3294 3 53 4849 2870 3 08 1 0 6235 5521 5 92 5628 4407 4 73 5474 4048 4 34 5244 3611 3 87 4882 3101 3 33 4530 2667 2 86 1 2 5881 5137 5 51 5384 ...

Страница 27: ...035 17311 000 REV A 1200 Unitary Products Group 27 FIGURE 21 PREDATOR STANDARD EFFICIENCY UNITS INDOOR COIL PRESSURE DROP VS AIRFLOW ...

Страница 28: ... 10 ton unit was selected to deliver 4 000 CFM with a 5 HP motor but the unit is delivering 3 750 CFM The variable pitch motor sheave is set at 2 turns open Use the equation to determine the required DD for the new motor sheave Use Table 29 to locate the DD nearest to 4 26 in Close the sheave to 1 2 turn open New BHP New motor Amps TABLE 28 INDOOR BLOWER SPECIFICATIONS MODEL MOTOR MOTOR SHEAVE BLO...

Страница 29: ...ting and cooling are present the heating operation will be performed If operating the cooling system is halted as with a completion of a call for cooling Heating always takes priority SAFETY CONTROLS The Predator unit control board monitors the following inputs for each cooling system 1 A suction line freezestat to protect against low evapora tor temperatures due to a low airflow or a low return a...

Страница 30: ...re is an initial call for both stages of cooling the UCB will delay energizing compressor 2 by 30 seconds in order to avoid a power rush Once the thermostat has been satisfied the it will de ener gize Y1 and Y2 If the compressors have satisfied their mini mum run times the compressors and condenser fans are de energized Otherwise the unit operates each cooling system until the minimum run times fo...

Страница 31: ... will operate in the low ambient mode Low ambient mode operates the compressors in this manner 10 minutes on 5 minutes off The indoor blower is operated throughout the cycle The 5 minute off period is necessary to defrost the indoor coil Low ambient mode always begins with compressor opera tion Compressor minimum run time may extend the minutes of compressor operation The defrost cycle will begin ...

Страница 32: ...71 73 75 TABLE 32 12 5 TON STANDARD EFFICIENCY SUPERHEAT CHARGING Outdoor Temp F Superheat at Compressor Suction F Airflow 5000 CFM Indoor WB Temp F 55 57 59 61 63 65 67 69 71 73 75 65 33 6 34 2 34 7 35 3 35 9 36 4 37 0 37 3 37 5 37 8 38 0 70 29 6 30 4 31 1 31 9 32 7 33 4 34 2 34 7 35 3 35 8 36 3 75 25 6 26 6 27 5 28 5 29 5 30 5 31 4 32 2 33 0 33 8 34 6 80 21 6 22 8 24 0 25 1 26 3 27 5 28 6 29 7 3...

Страница 33: ...onfusion a 1 flash flash code is not used Current alarms are flashed on the UCB LED The alarm his tory can be checked by pressing and releasing the ALARMS button on the UCB The UCB will cycle through the last five 5 alarms most recent to oldest separating each alarm flash code by approximately 2 seconds In some cases it may be necessary to zero the ASCD for the compressors in order to perform trou...

Страница 34: ...ut 7 Flashes FS1 Compressor Lock out 8 Flashes FS2 Compressor Lock out 9 Flashes Ignition Control Locked Out Ignition Control Failure Limit Switch Trip No Jumper Plug In Electric Heat Section 10 Flashes Compressors Locked Out On Low Outdoor Air Temperature1 11 Flashes Compressors Locked Out Because The Economizer Is Using Free Cooling1 12 Flashes Fan Overload Switch Trip Not Applicable In This Uni...

Страница 35: ... No No Call for 1st Stage Cooling First Stage Call for 2nd Stage Cooling Yes Yes Loss of Call for Heating Loss of Call for Cooling Heat Off Cool Off Yes Yes No Call for ID Blower Fan off 10 secs Energize ID Blower Motor Yes Yes No Programming Program Unit Control Board Trip Failure No No Lossof Call for ID Blower Turn off ID Blower Motor Fan on 30 secs Yes No Yes No No Yes Yes No ...

Страница 36: ...035 17311 000 REV A 1200 36 Unitary Products Group FIGURE 23 TRIP FAILURE FLOW CHART ...

Страница 37: ...f installed check the position of the economizer blades If the blades are open the economizer is providing free cooling and the compressors will not immediately oper ate If both stages of cooling are requested simulta neously and the economizer provides free cooling following a short delay compressor 1 will be energized unless it is locked out If compressor 1 is locked out compressor 2 is energize...

Страница 38: ...be energized unless it is locked out Typically compressor 2 is ener gized only during free cooling if the call for the second stage of cooling persists for 20 minutes 2 Compressor 2 will not energize simultaneously with compressor 1 if a call for both stages of cooling is received The UCB delays compressor 2 by 30 sec onds to prevent a power surge If after the delay com pressor 2 does not energize...

Страница 39: ...f 24 volts is present at the UCB Y1 terminal and none of the protection switches have opened the UCB may have locked out the compressor for repeat trips The UCB should be flashing a code If not press and release the ALARMS button on the UCB The UCB will flash the last five alarms on the LED If the compressor is locked out remove any call for cooling This will reset any compres sor lock outs NOTE W...

Страница 40: ...035 17311 000 REV A 1200 40 Unitary Products Group ...

Страница 41: ......

Страница 42: ...035 17311 000 REV A 1200 ...

Страница 43: ...035 17311 000 REV A 1200 Unitary Products Group 43 ...

Страница 44: ... 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 OK Group Drive 73069 ...

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