York EA090 Technical Manual
York EA090 Technical Manual

York EA090 Technical Manual

Split-system heat pumps

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TECHNICAL GUIDE
SPLIT-SYSTEM
HEAT PUMPS
EA090/FA090
208/230/460
VOLT ONLY
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

DESCRIPTION

®
YORK has combined the latest concepts in modern technology with
time-proven quality standards to design a split-system heat pump to
meet the demands of the energy-and quality-conscious commercial
market.
Both the outdoor and indoor units are completely piped and wired at
the factory. Only the interconnecting liquid and vapor lines are required
to complete the refrigerant circuit. Every unit is dehydrated, evacuated,
leak tested and pressure tested before being pressurized with a hold-
ing charge of refrigerant-22 for shipment and/or storage. The compres-
sor, the fan motors and the controls are functionally tested after the
units are fabricated to assure a reliable start-up and years of depend-
able operation.
These units have been tested by Underwriters' Laboratories and will
be shipped with UL and CUL labels.

OUTDOOR UNIT

Every outdoor unit includes a heavy-duty compressor with a crankcase
heater, line break overload protection, a suction line accumulator with
a fusible plug, a 4-way reversing valve with a 24-volt solenoid, outdoor
fan motor(s) with inherent protection, and a copper tube/aluminum fin
coil that is positioned vertically for better drainage of the water that will
condense on it during the heating cycle.
They also include a filter-drier, an expansion valve and a distributor
that are only used during the heating cycle plus a check valve to pro-
vide the proper flow of refrigerant through the unit during both the cool-
ing and heating cycles.
To eliminate the costly cabinet deterioration problems usually associ-
ated with outdoor equipment, all sheet metal parts are constructed of
commercial grade (G90) galvanized steel. After fabrication, each part
is thoroughly cleaned to remove any grease or dirt from its surfaces.
The parts that will be exposed to the weather are then coated with a
"desert sand" powder paint to assure a quality finish for many years.
This coating system has passed the 750 hour, salt spray test per
ASTM Standard B117. To assist in servicing, the high and low pressure
service connections are exterior to the cabinet, allowing simple
access.
The fan guards are vinyl-coated to provide additional rust protection.
An optional decorative coil guard is available to protect the coil on the
outdoor unit.

INDOOR UNIT

Every indoor unit includes a well-insulated cabinet, a copper tube/alu-
minum fin coil, 1" throwaway filters, a centrifugal blower, a blower
motor, adjustable drive components, a blower motor contactor and a
small holding charge of refrigerant-22.
They also include a filter-drier, an expansion valve and a distributor
that are only used during the cooling cycle plus a check valve to pro-
vide the proper flow of refrigerant through the coil during both the cool-
ing and heating cycles.
The units are shipped in the vertical position ready for field installation.
For horizontal installation, interchange the solid bottom panel and the
return air duct flange on the front of the unit.
036-21371-001-B-0203

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Summary of Contents for York EA090

  • Page 1: Description

    036-21371-001-B-0203 DESCRIPTION ® YORK has combined the latest concepts in modern technology with time-proven quality standards to design a split-system heat pump to meet the demands of the energy-and quality-conscious commercial market. Both the outdoor and indoor units are completely piped and wired at the factory.
  • Page 2: Table Of Contents

    Static Resistances for Unit Accessories (IWG) . 11 EA090 Outdoor Units..... . 3 Physical Data (Outdoor Unit)....16 FA090 Indoor Units .
  • Page 3: Application Flexibility

    FORK-LIFT OPENINGS INDOOR UNITS FIGURE 1: EA090 - OUTDOOR UNITS These indoor units are shipped for vertical installation, but may be field converted for horizontal applications by separat- • The Supply Air Plenum and the Return Air Grille acces- ing and repositioning the Blower Section.
  • Page 4: Ari Ratings

    Model Cooling Capacity High Outdoor Low Outdoor Temperature (47º F) Temperature (17º F) Outdoor Indoor Unit Unit EA090 FA090 10.67 87.7 3.25 2.34 Sound Rating Outdoor Unit (bels) EA090 Certified in accordance with the Unitary Large Equipment certification program, which is based on ARI Standard 340/360.
  • Page 5: System Flexibility

    036-21371-001-B-0203 SYSTEM FLEXIBILITY The coils for both the indoor and outdoor units are not only A = 1-3/8" OD Vapor Line circuited and headered for optimum heating and cooling per- formance, but also for ample subcooling during all modes of B = 1-1/8"...
  • Page 6: Cooling Capacity - Ea090

    036-21371-001-B-0203 TABLE 4: COOLING CAPACITY - EA090 Temperature of Air on Condenser Coil Air On 85°F 95°F Total Total Total Total Evaporaor Coil Sensible Capacity (MBh) Sensible Capacity (MBh) Return Dry Bulb (°F) Return Dry Bulb (°F) Capacity Input Capacity Input WB(°F)
  • Page 7 036-21371-001-B-0203 TABLE 4: COOLING CAPACITY - EA090 (CONT.) Temperature of Air on Condenser Coil Air On 125°F Total Total Evaporaor Coil Sensible Capacity (MBh) Return Dry Bulb (°F) Nominal Rating Capacity Input CFM WB(°F) 86 83 80 77 74 71 68...
  • Page 8: Heating Capacities

    036-21371-001-B-0203 UNIT MODEL EA090 OUTDOOR TEMPERATURE (F) (72% RH) ID DB 2400 60 MBH 12.237 28.142 44.048 59.954 75.859 91.765 107.671 123.576 2400 2.090 3.179 4.268 5.357 6.447 7.536 8.625 9.714 2400 70 MBH 9.673 25.579 41.485 57.390 73.296 89.201 105.107...
  • Page 9: Electric Heat Accessory

    036-21371-001-B-0203 TABLE 5: ELECTRIC HEAT ACCESSORY Heating Capacity Heater Model Nominal Voltage Nominal Defrost Supplemental Standby and Emergency 2HS045010 34.2 34.2 34.2 34.2 2HS045016 54.7 34.2 54.7 54.7 2HS045026 88.8 54.7 88.8 88.8 2HS045036 123.0 54.7 88.8 123.0 For 208 volts, multiply the MBH and KW values by (208/240)^2 or 0.751. For 208 volts, multiply the MBH and KW values by (230/240)^ 2 or 0.918.
  • Page 10: Fa090 Airflow Chart

    036-21371-001-B-0203 TABLE 8: SUPPLY AIR PLENUM PERFORMANCE DATA ANGLE OF DEFLECTION HORIZON- VERTICAL HORIZONTAL VERTICAL VERTICAL HORIZONTAL LOUVERS LOUVERS LOUVERS LOUVERS LOUVERS 2 2 - 1 / 2 ° 4 5 ° LOUVERS INDOOR FACE (PLAN (ELEVATION (PLAN (PLAN (ELEVATION S P R E A D S P R E A D (ELEVATION...
  • Page 11: Accessories (Field-Installed)

    036-21371-001-B-0203 TABLE 9: STATIC RESISTANCES FOR UNIT ACCESSORIES (IWG) Unit Model Accessory 2400 2700 3000 3300 3600 10 KW 0.01 0.01 0.01 0.02 0.02 16 KW 0.01 0.02 0.02 0.03 0.04 ELECTRIC HEAT 26 KW 0.03 0.04 0.05 0.06 0.07 FA090 36 KW 0.05...
  • Page 12: Unit Dimensions & Clearances - Outdoor

    Rear 24” Dim. (inches.) Unit 0” Bottom Unit must be installed outdoors. Overhanging structures EA090 70-1/8 29-5/8 16-1/2 or shrubs should not obstruct air discharge outlet. Adequate snow clearance must be provided if winter operation is expected. All dimensions are in inches. They are subject to change without notice.
  • Page 13: Units

    036-21371-001-B-0203 MINIMUM CLEARANCES ACCESSORIES Side with RETURN AIR opening 24” Side with SUPPLY AIR opening 24” • ELECTRIC HEATER - Add 14-1/4” to unit height when Side with PIPING CONNECTIONS 52” used. Side opposite PIPING CONNECTIONS 12” • SUPPLY AIR PLENUM - Add 27-1/2” to unit height when Side with access for both POWER &...
  • Page 14: Field Wiring

    036-21371-001-B-0203 *All OUTDOOR Units and all HEAT PUMP only INDOOR Units require dual element, time delay fuses. Circuit breakers can be used in lieu of fuses for indoor units with an electric heat accessory. Only required when an electric heat accessory is used.
  • Page 15: Accessory Dimensions

    036-21371-001-B-0203 Install the control wiring per basic unit instruction Form 035-18475-000. DO NOT route any field control wiring through the plenum. WITHOUT ELECTRIC HEAT - Install the power and the control wiring per basic unit instruction Form 035-18475-000. DO NOT route any wiring through the plenum and DO NOT remove this knockout.
  • Page 16: Description No

    036-21371-001-B-0203 TABLE 10: PHYSICAL DATA (OUTDOOR UNIT) DESCRIPTION UNIT MODEL - EA090 Rating - tons 7-1/2 Compressor Quantity Fans Diameter - inches No. of Blades 24/3 Nominal CFM 7800 Fan Motors 1100 Rows Deep x Rows High 2 x 36...
  • Page 17: Physical Data - Electric Heat Accessories

    036-21371-001-B-0203 TABLE 12: PHYSICAL DATA - ELECTRIC HEAT ACCESSORIES Nominal Heater Capacity Description 10 kW 16 KW 26 KW 36 KW % Nickel 59.2 % Chromium 16.0 Heater Elements Coil ID - inches 9/32 Watt Density - watts/sq.in. Rows Deep Face Area - square feet TABLE 13: ELECTRICAL DATA - OUTDOOR UNIT Compressor...
  • Page 18: Heat Pump With Electric Heat

    036-21371-001-B-0203 TABLE 16: HEAT PUMP WITH ELECTRIC HEAT Nominal Max, Fuse Min. Wire Total Unit Heater Heater Power Supply Ampacity Size, Size, AMPS AMPS FA090 208-3-60 20.8 31.3 230-3-60 24.1 35.1 460-3-60 12.0 17.6 208-3-60 33.4 46.9 230-3-60 38.5 53.1 460-3-60 19.2 26.7...
  • Page 19 036-21371-001-B-0203 Unitary Products Group...
  • Page 20 Subject to change without notice. Printed in U.S.A. 036-21371-001-B-0203 Copyright © by Unitary Products Group 42003. All rights reserved. Supersedes: 036-21371-001-A-0402 Unitary 5005 Norman Products York Group Drive 73069...

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Fa090

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