York R-407C User Manual

Page 1
TM
Packaged Roof top
Air Conditioning Units

FORM 100.50-EG3 (802)

00566VIP
ASHRAE
90.1
COMPLIANT
50 THROUGH 100 TONS
R-407C and R-22
400VAC/3PH/50Hz
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Introduction

The eco2 packaged rooftop – Designed to meet the de­mands of the market for today and tomorrow.
Better Economy...
Reduce Energy Consumption
• High-efficiency eco2 rooftop units are optimized for both R-22 and HFC-407C refrigerant, and are the first environmentally responsible rooftop units that meet the ASHRAE 90.1-2001 ef ficiency standards.
• Multiple steps of capacity-control offer superior of f­design energy performance, while maintaining bet­ter control of occupant comfort.
• The OptiLogic more than the proper amount of ventilation air is utilized, avoiding the energy cost of conditioning excess air.
TM
Control Center ensures that no
LD07431
The OptiLogicTM Control Center uses microprocessor logic to opti­mize operation of the eco2 rooftop unit.
Better Ecology...
Air Quality Features for the Indoor Environment
• A double-sloped stainless steel design ensures that all condensate is voided from the drain pan. The drain pan is also visible and accessible for the periodic in­spection and cleaning required by IAQ standards.
• Double-wall construction of the roof, floor, doors, and walls prevents insulation fiber from entering the supply air. The inner liner also facilitates peri­odic cleaning of the unit to prevent harmful build­up of bacteria or contaminants.
• The OptiLogicTM Control Center uses microproces­sor logic to analyze and optimize ventilation decisions.
• A true airflow-measurement station can be supplied, to ensure the proper ventilation at all supply-air volumes.
• An available sensor can monitor the CO2 level within the building and adjust the ventilation rate on de­mand, to maintain the air quality at a healthy level.
HFC-407C Refrigerant
for the Global Environment
LD07430
2
YORK INTERNATIONAL
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TABLE OF CONTENTS

FORM 100.50-EG3 (802)
Introduction.............................................................2
Features and Benefits ............................................4
Nomenclature .........................................................7
Application Data .....................................................8
Physical Data........................................................12
Cooling Performance Data ...................................16
Heating Performance Data – Gas/Electric Heat ...36
Supply Fan Data................................................... 37
Component Static Pressure Drop s .......................40
Gas Heat Pressure Drops ....................................44
Electric Heat Pressure Drops ...............................46
Exhaust Fan Data.................................................48
Component Static Pressure Drop s .......................50
Electrical Data ......................................................52
Controls................................................................54
Power Wiring........................................................60
Field Control Wiring..............................................63
General Arrangement Drawings ...........................64
Curb Layout Drawing ............................................69
Power/Control Entry Drawing................................70
Guide Specifications.............................................71
TABLES
1 Physical Data ................................................. 12
2 Cooling Performance Data – 50 Ton Model....16
3 Cooling Performance Data – 55 Ton Model....18
4 Cooling Performance Data – 60 Ton Model....20
5 Cooling Performance Data – 65 Ton Model....22
6 Cooling Performance Data – 70 Ton Model....24
7 Cooling Performance Data – 75 Ton Model....26
8 Cooling Performance Data – 80 Ton Model....28
9 Cooling Performance Data – 85 Ton Model....30
10 Cooling Performance Data – 90 Ton Model....32
11 Cooling Performance Data – 95 Ton Model....34
12 Gas Heat Performance Data..........................36
13 Electric Heat Performance Data.....................36
14 50 Through 65 T on Supply Fan Data..............37
15 70 Through 85 T on Supply Fan Data..............38
16 90 Through 95 T on Supply Fan Data..............39
17 Component Static Pressure Drops ................. 40
18 Gas Heat Pressure Drops..............................44
19 Electric Heat Pressure Drops.........................46
20 60 Through 65 T on Exhaust Fan Data............48
21 70 Through 85 T on Exhaust Fan Data............49
22 90 Through 95 T on Exhaust Fan Data............49
23 Component Static Pressure Drop s................. 50
24 Compressor Data........................................... 52
25 Supply and Exhaust Fan Motor
Electrical Data................................................ 53
26 Condenser Fan Motors ..................................53
27 Control Transformer....................................... 53
28 Electric Heat...................................................53
29 General Arrangement – 50-65 Ton Models
(Bottom Supply/Bottom Return) ....................... 64
30 General Arrangement – 50-65 Ton Models
(Side Supply/Front Return) ..............................65
31 General Arrangement – 70-95 T on Models
(Bottom Supply/Bottom Return).......................66
32 General Arrangement – 70-95 Ton Models
(Side Supply/Front Return).............................67
33 General Arrangement – 70-95 T on
Optional Side Return......................................68
34 Curb Layout Dimensions................................69
35 Power/Control Dimensions.............................70
FIGURES
1 Single-Point Power Supply Wiring.................. 60
2 Single-Point Power Supply Wiring with
Non-Fused Disconnect .................................. 61
3 Dual-Point Power Supply Wiring ....................62
4 Field Control Wiring .......................................63
5 Gen. Agmt. Dwg. – 50-65 Ton Models
(Bottom Supply/Bottom Return) ...................... 64
6 Gen. Agmt. Dwg. – 50-65 T on Models
(Side Supply/Front Return) ..............................65
7 Gen. Agmt. Dwg. – 70-95 T on Models
(Bottom Supply/Bottom Return) ...................... 66
8 Gen. Agmt. Dwg. – 70-95 Ton Models
(Side Supply/Front Return) ..............................67
9 Gen. Agmt. Dwg. – 70-95 Ton Models
(Optional Side Return) ...................................68
10 Curb Layout Drawing ..................................... 69
1 1 Power/Control Entry Drawing –
50-95 Ton Model ............................................70
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Features and Benefits

QUALITY ROOFTOP UNIT DESIGNED T O TODA Y’S STANDARDS
Ecological and Economical Design
• First packaged RTU that meets ASHRAE 90.1-2001 with both R-22 and R-407C Refrigerants.
Cooling and Heating – Superior operating perfor­mance provides lower operating costs. Smaller steps of cooling capacity provide tighter control of building environment and occupant comfort while optimizing energy efficiency .
Indoor Air Quality (IAQ) – Outside air economizer provides energy savings in free cooling mode, and can provide a healthier and more comfortable build­ing environment by introducing fresh outside air into the building as needed. Indoor Air Quality (IAQ) re­quirements for building ventilation and comfort are controlled through the microprocessor control panel. Optional air flow measurement provides an accurate means of tracking air quality and alerting the occu­pants or building owner to unhealthy situations.
Premium Efficiency – Premium-efficiency motors are available for optimum energy efficiency. All mo­tors used on the eco2 packaged rooftop air condi­tioner meet U.S. EP ACT 1992 minimum requirements.
VFDs Standard on V A V Units – V ariable-frequency­drives provide the HVAC designer with a high-effi­ciency, quiet and more reliable means of variable air volume control from a packaged rooftop. On larger rooftops, ASHRAE 90.1-1999 st andard specifies part load efficiency requirements that make VFDs the cost-effective solution for meeting the standard.
VFDs can save the owner up to 40% of the energy costs compared to inlet guide vanes offered on com­petitive units by reducing the power requirement. VFDs use fewer parts, which leads to more reliabil­ity . Also, with fewer moving parts, and the reduction of speed in the fan, the VFD operates at significantly quieter operation than the inlet guide vane which restricts a high volume of airflow, which can actually increase noise at part load conditions.
Additionally, the YORK VFD includes DC link reac­tors as standard that have harmonic filtration com­parable to an AC line reactor. VFDs also provide the added benefit of soft-starting the supply fan, which helps to minimize demand charges associated with inrush currents.
Network Connectivity with BACnet, LON or Roof- Link Interface – Through optional communications protocols, the eco2 rooftop unit can communicate to any building automation system. There are four op­tions available: BACnet Internet Protocol (Ethernet), BACnet MSTP (RS485), LON or a generic RoofLink BAS interface, depending on the type of building
automation system. Without network communica­tions, the eco2 is designed to operate in stand-alone mode, or via contact closures for basic control.
Professional Appearance – A high quality powder coat paint finish is applied to the galvanized steel
2
exterior of the eco
unit to protect it from aggressive environments helping to maintain a factory-quality appearance for years.
FlexSys Underfloor Air System Configuration – the eco
2
rooftop is the first packaged rooftop product with designs specifically for use with the YORK Flex­Sys underfloor air system. Ask your local YORK representative for more information.
Indoor Air Quality (IAQ)
Double-Sloped Stainless Steel Drain Pan – This double-sloped inclined stainless steel drain pan fa­cilitates removal of evaporator condensate. Sloped in two directions, this drain pan swiftly drains any condensate from the unit. Best of all, the drain pan is accessible for periodic cleaning required by IAQ standards.
Smart Ventilation – YORK maintains the leader­ship role in IAQ products with adaptive ventilation control. The OptiLogic
TM
controls provide continuous monitoring of air quality and take action by opening the outside air dampers, bringing in the right amount of fresh air before air impurities reach uncomfortable or even dangerous levels.
• Air Flow Measurement – Precise measurement of ventilation air flow is possible using an air flow measurement station which can be installed in the economizer section. Proper ventilation air flow is required to ensure sufficient fresh air is in the build­ing. A myriad of air flow measurement options are available from minimum air flow to high-accuracy full air flow capabilities. The complete system is de­signed as an integrated component of the OptiLogicTM control system to ensure optimum sys­tem performance.
Double Wall Construction – Rigid double-wall con­struction throughout provides ease of cleaning and protects against insulation fiber entrainment in the breathable air. Double-wall construction also helps improve the acoustical characteristics of the air han­dling unit.
Enhanced Filtration – The eco2 unit gives design­ers the flexibility to meet various IAQ requirements with a full range of rigid and throwaway filter options at various efficiency levels.
Demand Ventilation – Control of the economizer is available to maintain a desired ventilation level based on a 0-10VDC input from a sensor . A factory­supplied CO2 sensor is available for installation in the occupied space.
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FORM 100.50-EG3 (802)
Reliable Cooling and Heating Technology
• Reliable, efficient, trouble-free operation is the true measure of a packaged rooftop’s value. That’ s why YORK eco2 Packaged Rooftop Air Conditioners use established scroll-compressor technology to deliver dependable, economical performance in a wide range of applications. With the eco
2
Packaged Rooftop, you get the latest generation of compres­sor enhancements added to the scroll’s inherent strengths. The simplicity of a hermetic scroll com­pressor allows the use of fewer moving parts to minimize breakdown. YORK also employs the lat­est sealing technology to avoid metal-to-metal con­tact. Axial sealing is accomplished with floating tip seals, while radial sealing utilizes a microcushion of oil. The result: a maintenance-free compressor providing minimum wear and maximum runtime.
Gas Furnace – The eco2 rooftop gas furnace is an induced-draft gas furnace designed for high effi­ciency and reliability. The furnace uses an alumi­nized steel tubular heat exchanger and operates at temperatures sufficient to prevent acidic exhaust gases from condensing in the heat exchanger at low fire rates, unlike drum and tube style furnaces that generate condensation formation.
Gas heat units are U.L./C.U.L. listed and are tested to ANSI standard Z21.47. Multiple modules pro­vide redundancy not available in single power burner applications.
Serviceability
Filter Maintenance Alarm – An optional filter main­tenance alarm indicates when a filter becomes dirty and requires replacement or cleaning.
Install with Ease and Safety
Factory Run-T ested – Each unit is subjected to a series of quality assurance checks as well as an automated quality control process before being run­tested. Fans and drives are balanced at the factory during testing. The factory run-test ensures safe, proper operation when the unit is installed and re­duces installation and commissioning time.
Single-Point Power Connection – Single-point power connection reduces installation time by pro­viding a single-point for incoming power, including the optional convenience outlet. All incoming power is connected in one location, reducing the cost of distributed power wiring.
Rain Hoods Rotate Into Place – No bulky , field- in- stalled rain hoods here. eco2 rain hoods ship rotated inside the unit. Once on the job, the installer merely rotates the hood upward, caulks and fastens it in place with sheet metal screws – an easy , one-person job.
Factory-mounted and Wired Controls – All con­trol points within the unit are factory-installed, wired and tested.
Non-Fused Disconnect – An optional factory-in­stalled non-fused disconnect switch simplifies unit installation and serviceability by eliminating the need for a separate disconnect switch. Check local codes for acceptability .
OptiLogicTM – Fully-integrated factory-packaged controls are standard on every unit and include a display unit with a 4x20 character LCD display. OptiLogicTM continually monitors all control setpoints and configurations. If a unit sensor fails, the con­troller indicates an alarm. If desired, YORK service can provide remote monitoring and automatically schedule a service technician to make the repair and maintain your comfort.
Access Doors – Full-sized access doors provide easy access into the unit for routine maintenance and inspection.
Suction & Discharge Service Valves – Oversized service valves to provide isolation and quick recla­mation and charging of system refrigerant are avail­able to minimize downtime and simplify the service and repair task.
Convenience Outlet – For maintenance tasks re­quiring power tools, an optional 110V GFCI power supply can power lights, drills or any other power hand tool needed.
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Design Flexibility
Low Ambient Operation – Head-pressure control is accomplished via a VFD motor controller rather than an inefficient and noisy condenser fan damper. By varying the speed of the condenser fan, better control and quieter operation is obtained during the cooler weather. Low ambient controls are available on all systems offering higher mechanical cooling capacity at low ambient conditions than competi­tive units.
Hot Gas Bypass – Optional on constant volume units, hot gas bypass reduces the cycling of compressors which helps prolong the life of the equipment.
Duct Air Openings – Horizontal connections are available on select configurations, offering more flexibility for duct layout and improving sound trans­mission characteristics.
Compressor Sound Blankets – For applications in sound-sensitive areas, compressor sound blan­kets are available to reduce sound emitted from the rooftop unit.
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Features and Benefits (continued)
Fan Spring Isolators – One-inch spring isolation is used to prevent vibration transmission from the rooftop unit’s supply fan to the building. Two-inch spring isolation is also available.
DISTRIBUTOR OPTIONAL REPLACEABLE CORE FILTER DRIERS
OPTIONAL HORIZONTAL SUPPL Y AIR OPENINGS
TUBES
PROTECTED
IN PLASTIC
SLEEVES
Harsh Environments – A variety of coil coating and materials are available as well as hail guards to pro­tect coils from weather damage.
ANGLED OR RIGID FLAT FILTER SECTION
OPTIONAL AIRFLOW MEASUREMENT STATION
RAINHOODS TO PREVENT MOISTURE FROM ENTERING THE UNIT
FACTORY­INSTALLED OPTILOGIC ROOFTOP UNIT CONTROLLER
V-BANKED CONDENSER COILS TO PROTECT FROM HAIL DAMAGE
COMPLETE DOUBLE-WALL CONSTRUCTION OF WALLS, FLOORS, CEILING, AND PANELS
DOUBLE-SLOPED STAINLESS STEEL IAQ DRAIN PAN AND INTERMEDIATE DRAIN PAN
ANGLED EVAPORATOR COIL FOR LOWER FACE VELOCITIES
DOORS ON BOTH SIDES OF UNIT AND TIE BACKS FOR UNIT SERVICING
CENTRIFUGAL FAN POWERED EXHAUST
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YORK INTERNATIONAL
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FORM 100.50-EG3 (802)

NOMENCLATURE

BASIC MODEL NUMBER
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
BASE PRODUCT TYPE NOMINAL CAP ACITY APPLICATION REFRIGERANT VOLTAGE DUCT LOCA TIONS DESIGN SPECIAL Y 0 5 0 B 45 B A
P055 C L X
: YORK : Packaged
Rooftop
A065 B
: Air-Cooled
L075 C S
: Scroll
: 50-ton : 55-ton : 60-ton
060 RS
: 65-ton : 70-ton
070 R
: 75-ton : 80-ton
080 N
: 85-ton
085 G
: 90-ton
090 E
: 95-ton
095 C
: Cooling Only : Natural Gas Heat : Natural Gas Heat SS HX : Electric Heat : Constant Volume
V
: VAV, VFD
F
: FlexSys
: R-407C : R-22
: 400 / 3 / 50
: Bottom Supply : Left Supply : Right Supply : Bottom Return : Front Return : Side Return
: Rev. Level A : Special : Std. Product
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Application Data

LOCATION
Of the many factors that can affect the acoustical char­acteristics of a rooftop installation, one of the most im­portant is the unit location. Ideally , the rooftop unit should be installed away from sound-sensitive areas, such as conference rooms, auditoriums and executive offices. Possible locations could be above storage areas, hall­ways, mechanical or utility rooms, or bathrooms.
The eco door installation. When selecting a site for installation, be guided by the following conditions:
• Unit must be installed on a level surface.
• For the outdoor location of the unit, select a place
• Also avoid locations beneath windows or between
• Optional condenser coil protection should be used
• The unit should be installed on a roof that is struc-
• Location of unit(s) should also be away from build-
• Be sure the supporting structures will not obstruct
• Proper service clearance space of 6-feet around
RIGGING
2
air conditioning units are designed for out-
having a minimum sun exposure and an adequate supply of fresh air for the condenser.
structures.
for seashore locations or other harsh environments.
turally strong enough to support the weight of the unit with a minimum of deflection. It is recom­mended that the unit(s) be installed not more than 15 feet from a main support beam to provide proper structural support and to minimize the transmission of sound and vibration. Ideally, the center of grav­ity should be located over a structural support or building column.
ing flue stacks or exhaust ventilators to prevent pos­sible reintroduction of contaminated air through the outside air intakes.
the duct, gas or wiring connections.
the perimeter of the unit, 8-feet on one side for coil servicing, and 12-feet to any adjacent units is re­quired to eliminate cross contamination of exhaust and outdoor air, and for maintenance tasks such as coil pull and cleaning. No obstructions should be above the condensing unit section.
Spreader bars must be used by cranes to prevent dam­age to the unit casing. All lifting lugs must be used when lifting the rooftop unit. Fork lifts will damage the roof top unit and are not recommended.
Care must be taken to keep the unit in the upright posi­tion during rigging and to prevent damage to the water­tight seams in the unit casing. Avoid unnecessary jar­ring or rough handling.
Ground Level Locations
It is important that the units be installed on a substan­tial base that will not settle, causing strain on the refrig­erant lines and sheet metal and resulting in possible leaks. A one-piece concrete slab with footers extended below the frost line is highly recommended. Addition­ally , the slab should be isolated from the main building foundation to prevent noise and vibration transmission to the building structure.
For ground level installations, precautions should be taken to protect the unit from tampering by , or injury to, unauthorized persons. Erecting a fence around the unit is common practice.
ECONOMIZER
The economizer section is used for ventilation of the conditioned space to maintain indoor air quality, and also to reduce energy consumption by using outdoor air cooling in lieu of mechanical cooling. If outdoor air is appropriate for cooling, but not sufficient for the cool­ing demand, mechanical cooling will stage on as nec­essary until the cooling load is met.
Dual (comparative or differential) enthalpy operation is the most accurate and efficient means of economizer operation. The OptiLogicTM control monitors the return and outside air energy content, and selects the lower of the two for operation.
V AV SUPPLY AIR PRESSURE CONTROL
Traditional packaged rooftop systems use inlet guide vanes (IGVs) for duct static pressure control. These con­trol supply duct pressure by modulating dampers (intro­duc ing losses and inefficiencies) on the inlet of the fan, open and closed. YORK’s variable frequency drives (VFDs) offer superior fan speed control and quieter, energy efficient operation.
Proper rigging and handling of the equipment is man­datory during unloading and setting it into position to retain warranty status.
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FORM 100.50-EG3 (802)
For V AV applications, the YORK eco2 unit uses a VFD to modulate fan speed and maintain a constant duct static pressure. VFDs offer superior control over the operation of the unit at part load, and offer the addi­tional benefits of quieter and more efficient operation when compared to IGV.
HARSH ENVIRONMENTS – CONDENSER AND EV APORATOR COIL PROTECTION
For harsh environmental conditions such as seashore applications, YORK offers three types of coil protec­tion: copper fin material, black fin and Technicoat coat­ings. YORK recommends that for corrosive environ­ments that copper fins be used to protect the evapora­tor and/or condenser coils. In areas where chemicals that can corrode copper are present, such as ammo­nia, YORK recommends that the black fin or Technicoat coating be used for maximum protection.
Copper Fin Condenser Coil
Copper fins can be used instead of aluminum for addi­tional corrosion protection, however it is not suitable for areas that are subject to acid rain or exposed to ammonia.
Pre-Coated Condenser Fins
Black fin coating (yellow fin for evaporator fins) is pre­coated application epoxy on aluminum fin stock to guard from corrosive agents and insulate against galvanic po­tential. It is used for mild seashore or industrial loca­tions. This can provide corrosion resistance comparable to copper fin coils in typical seashore locations.
Post-Coated Condenser Fins
T echnicoat (a post-coated application of epoxy) can be used for seashore and other corrosive applications with the exception of strong alkaloides, oxidizers, wet bro­mide, chlorine and fluorine in concentrations greater than 100 ppm.
Any of the above suitable options should be selected based on the particular project design parameters and related environmental factors. The application should be further reviewed and approved by the consulting en­gineer or owner based on their knowledge of the job site conditions.
BUILDING EXHAUST SYSTEMS
Building exhaust systems are often necessary when economizers are used to bring in outdoor air. Without proper building exhaust, the building may become over­pressurized. The exhaust system maintains the proper building pressure by expelling the appropriate amount of air from the building. Exhaust systems are typically designed to exhaust approximately 10% less air than what is entering the building. This provides a slight posi­tive pressure in the building.
100% modulating exhaust with building static pressure sensing and control
The 100% exhaust system can be configured with ei­ther control actuated dampers or VFDs for modulating control. The unit controller monitors the building pres­sure using a differential pressure transducer and main­tains the required building static pressure by modulat­ing the exhaust control. If the building has other means of exhaust or building pressure is not important, on/off or barometric control may be used.
Powered exhaust with fan on/off control
The 100% exhaust system can be configured for on/off operation eliminating the expense of the damper ac­tuators or VFDs. This exhaust system can be controlled by either the outside air damper position, or a building static pressure sensor.
Barometric exhaust
Barometric exhaust can be used when smaller amounts of air at low static pressure variations within the build­ing or other means of building exhaust are employed. Barometric exhaust is commonly used where there are only small fluctuations in building pressure or where building static pressure control is not necessary .
ROOF CURB
YORK offers optional roof curbs designed specifically for the eco
2
footprint. These curbs come disassembled and require field assembly and installation. For bottom supply and return openings, the curbs have matching connections to ease installation. A pipe chase that matches the rooftop unit pipe chase is also included in the curb footprint for through-the-curb utility connections.
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Page 10
Application Data (continued)
The curb should be located according to the location recommendations above, and properly sealed to pre­vent moisture and air leakage into and out of the duct system. Flexible collars should be used when connect­ing the duct work to prevent unit noise transmission and vibration into the building.
Duct work should be supported independently of the unit.
ACOUSTICAL CONSIDERA TIONS
The eco competitive units by using flexible fan connections, fan spring isolators, double-wall construction, and lower speed and horsepower fans. For VAV applications, VFDs are used instead of inlet guide vanes. Additional sound attenuation can be obtained using compressor sound blankets and field-supplied sound attenuators when necessary.
Even with these equipment design features, the acous­tical characteristics of the entire installation must never be overlooked. Additional steps for the acoustical char­acteristics of a rooftop installation should be addressed during the design phase of a project to avoid costly al­terations after the installation of the equipment. During the design phase of a project, the designing engineer should consider, at a minimum, the imp act of the equip­ment location, rooftop installation, building structure, and duct work.
2
unit is designed for lower sound levels than
Select Unit:
1. Determine the internal static pressure drop of the cabinet by referencing Table 17.
Wet evaporator coil 0.58 Bottom return opening 0.15 Two-inch pleated filters 0.12 Mod. econ. dampers 0.56 Total 1.41 IWG
2. Determine the total static pressure by adding the internal to the external static pressure.
TSP = 1.41 IWG + 2.25 IWG = 3.66 IWG total static pressure
3. Determine the BHP of the supply fan from Table 15 using the supply air flow and total static pressure. From the table, we interpolate to get 26.3 BHP at 724 rpm.
4. Determine the motor heat gain of supply air flow by first calculating the motor energy and converting it into Btuh.
Motor Energy
Motor kW = BHP x .746/efficiency Motor kW = 26.3 x 0.746/0.94 Motor kW = 20.9 kW
SELECTION PROCEDURE
Given:
Total Cooling Load 920 mbh Sensible Heat 610 mbh Required Heating Capacity 875 mbh Design Cooling Ambient Temp. 95°F Indoor Air Temperature 80°F db/67°F wb Supply Air Flow 24,000 cfm External Static Pressure 2.25 in. w.c. Electrical Service 460V/3ph/60 Hz
Unit Configuration/Options: 0-100% modulating econo­mizer, barometric relief, premium ef ficiency supply fan motor and VFD, and two-inch pleated filters, bottom supply, bottom return.
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Motor Heat Rejection (MHR)
MHR = 2545 x BHP/efficiency MHR = 2545 x 26.3/0.94 MHR = 71.2 mbh
5. Calculate actual required tot al cooling capacity by adding specified cooling capacity to motor heat rejection.
Required T ot al Cooling Capacity
920 mbh + 71.3 mbh = 991 mbh
Required Sensible Cooling Capacity
610 mbh + 71.3 mbh = 681 mbh
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FORM 100.50-EG3 (802)
6. Required total and sensible capacities are 991 mbh and 681 mbh, respectively . The total capacity is 82.6 tons, therefore a model YP AL085 is selected. Use the Cooling Performance Data in Table 9. Locate the table with the correct ambient air temperature. Next, trace the 80°F entering air dry bulb tempera­ture to match the 24,000 cfm and 67°F entering wet bulb temperature condition. The resulting con­ditions are, from the table, 996.5 mbh total cooling capacity and 688.9 mbh sensible cooling capacity .
7. The high heat option for the YPAL085 provides 900 mbh of heat capacity with an input of 1,125 mbh. This is sufficient for the 875 mbh heating requirement.
8. Determine net cooling and heating capacities if required.
Net Cooling Capacity (NCC)
mbh = 996.5 mbh – 71.3 mbh mbh = 925 mbh
Net Sensible Heat Capacity (NSHC)
mbh = 688.9 mbh - 71.3 mbh mbh = 618 mbh
Net Heating Capacity (NHC)*
mbh = 875 mbh + 71.3 mbh mbh = 946 mbh
* Note, net heating capacity is approximate because this example
uses the bhp calculated based on a wet evaporator coil (for cooling mode).
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Physical Data

T ABLE 1 – PHYSICAL DATA – MODELS 50-70
MODEL SIZE 050 055 060 065 070 GENERAL DATA
Length (cm) w/o Hood 874 874 874 874 1140 Width (cm) w/o Hood 234 234 234 234 234 Height (cm) 208 208 208 208 208
Operating Weights (Kg) (Base Unit, No Options)
Cooling Only (Rigging & R407C) 3701 3797 3934 4029 5799
Option Weights (Kg)
Power Exhaust (Blower, Motor, Fan Skid & Mod Damper) 284 284 284 284 341 Power Exhaust (Blower, Motor, Fan Dkid, VFD & Baro Damper) 287 287 287 287 332 100% AMS (Measurement Station & Mounting) 50 50 50 50 57 25/75% AMS (Measurement Station & Mounting) 59 59 59 59 66 Min. AMS (Measurement Station & Mounting) 18 18 18 18 20 Barometric Only 16 16 16 16 20 375 MBH Gas Heat 73 73 73 73 73 750 MBH Gas Heat 147 147 147 147 147 1125 MBH Gas Heat n/a n/a n/a n/a 220 40 kW 195 195 195 195 204 80 kW 222 222 222 222 231 108 kW 204 204 204 204 213 150 kW 213 213 213 213 222 200 kW 222 222 222 222 231 250 kW 231 231 231 231 240 Condenser Wire Guard 15 15 15 15 18 Copper Condenser Coils (additional) 280 280 360 360 280 Copper Evaporator Coils (additional) 119 145 181 227 127
Roof Curb Weights (Kg)
14" Full Perimeter Roof Curb 374 374 374 374 463 14" Open Condenser Roof Curb 252 252 252 252 262
Compressor Data
Quantity/Size (Nominal HP) 4x13 4x13 4x15 4x15 4x10, 2x13 Type Scroll Scroll Scroll Scroll Scroll Capacity Steps (%) 4x25 4x25 4x25 4x25 4x15, 2x20
Supply Fan and Drive
Quantity 1 1 1 1 1 Type FC FC FC FC FC Size 25-22 25-22 25-22 25-22 28-25 Motor Size Range (Min. to Max. HP) 7.5-40 7.5-40 7.5-40 7.5-40 7.5-60 Air Flow Range (Min. to Max. m3/hr) 16,988-38,228 16,988-38,228 23785-45875 23785-45875 23785-54,367 Static Pressure Range (Min. to Max. ESP) 0-995 Pa 0-995 Pa 0-995 Pa 0-995 Pa 0-995 Pa
Exhaust Fan
Quantity 2 2 2 2 2 Type FC FC FC FC FC Size 15-15 15-15 15-15 15-15 18-18 Motor Size Range (Min. to Max. HP) 5-20 5-20 5-20 5-20 10-20 Air Flow Range (Min. to Max. m3/hr) 0-33980 0-33980 0-33980 0-33980 0-33980 Static Pressure Range (Min. to Max. ESP) 0-498 Pa 0-498 Pa 0-498 Pa 0-498 Pa 0-498 Pa
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FORM 100.50-EG3 (802)
T ABLE 1 – PHYSICAL DATA – MODELS 50-70 (CONT’D)
MODEL SIZE 050 055 060 065 070 Evaporator Coil
Size (Square Meters) 5 5 5 5 5 Number of Rows/Fins per cm 1 1 1 1 1 Tube Diameter (cm) /Surface 5/4 /enhanced 5/4 /enhanced 5/4 /enhanced 5/4 /enhanced 5/4 /enhanced
Condenser Coil (Aluminum Fins)
Size (Square Meters) 11 11 11 11 182 Number of Rows/Fins per cm 1 1 0 0 0 Tube Diameter (cm) 1 1 1 1 1
Condenser Coil (Copper Fins - Opt)
Size (square meters) 11 11 11 11 17 Number of rows/fins per cm 1 1 0 0 0 Tube Diameter 1 1 1 1 1
Condenser Fans
Quantity 4 4 4 4 6 Type Prop. Prop. Prop. Prop. Prop. Diameter (Meters) 1 1 1 1 1 Power (Hp Each) 2 2 2 2 2
Filters - 5.08cm Throwaway
Quantity 8 / 12 8 / 12 8 / 12 8 / 12 10 / 15 Size (Length x Width) (Meters) .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 6 6 6 6 7
Filters - 5.08cm Cleanable
Quantity 8 / 12 8 / 12 8 / 12 8 / 12 10 / 15 Size (Length x Width) (Meters) .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 6 6 6 6 7
Filters - 5.08cm Pleated (30% Efficient)
Quantity 8 / 12 8 / 12 8 / 12 8 / 12 10 / 15 Size (Length x Width) (Meters) .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 6 6 6 6 7
Filters -30.48cm Rigid 65%, 5.08cm 30% Prefilter
Quantity 1 / 4 / 9 1 / 4 / 9 1 / 4 / 9 1 / 4 / 9 2 / 8 / 9 Size (Length x Width) (Meters) .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 Total Filter Face Area (Square Meters) 1 1 1 1 1
Filters -30.48cm Rigid 95%, 5.08cm 30% Prefilter
Quantity 1 / 4 / 9 1 / 4 / 9 1 / 4 / 9 1 / 4 / 9 2 / 8 / 9 Size (Length x Width) (Meters) .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 Total Filter Face Area (Square Meters) 1 1 1 1 1
Filters - 5.08cm Carbon (30% Efficient)
Quantity 1 / 4 / 9 1 / 4 / 9 1 / 4 / 9 1 / 4 / 9 10 / 15 Size (Length x Width) (Meters) .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 1 1 1 1 2
Minimum OA Temp. for Mech. Cig. 45 45 45 45 45
YORK INTERNATIONAL
13
Page 14
Physical Data (continued)
T ABLE 1 – PHYSICAL DATA – MODELS 75-95
MODEL SIZE 075 080 085 090 095 GENERAL DATA
Length (cm) w/o Hood 1140 1140 1140 1240 1240 Width (cm) w/o Hood 234 234 234 234 234 Height (cm) 208 208 208 234 234
Operating Weights (Kg) (Base Unit, No Options)
Cooling Only (Rigging & R407C) 5897 5994 6092 6496 6594
Option Weights (Kg)
Power Exhaust (Blower, Motor, Fan Skid & Mod Damper) 341 341 341 347 347 Power Exhaust (Blower, Motor, Fan Skid, VFD & Baro Damper) 332 332 332 337 337 100% AMS (Measurement Station & Mounting) 57 57 57 64 64 25/75% AMS (Measurement Station & Mounting) 66 66 66 73 73 Min. AMS (Measurement Station & Mounting) 20 20 20 23 23 Barometric Only 20 20 20 25 25 375 MBH Gas Heat 73 73 73 73 73 750 MBH Gas Heat 147 147 147 147 147 1125 MBH Gas Heat 220 220 220 220 220 40 kW 204 204 204 222 222 80 kW 231 231 231 249 249 108 kW 213 213 213 231 231 150 kW 222 222 222 240 240 200 kW 231 231 231 249 249 250 kW 240 240 240 259 259 Condenser Wire Guard 18 18 18 20 20 Copper Condenser Coils (Additional) 280 480 480 540 540 Copper Evaporator Coils (Additional) 209 127 209 209 263
Roof Curb Weights (Kg)
14" Full Perimeter Roof Curb 463 463 463 472 472 14" Open Condenser Roof Curb 262 262 262 279 279
Compressor Data
Quantity/Size (Nominal Hp) 4x10, 2x13 6x13 6x13 2x13, 4x15 2x13, 4x15 Type Scroll Scroll Scroll Scroll Scroll Capacity Steps (%) 4x15, 2x20 6x16 6x16 4x18, 2x15 4x18, 2x15
Supply Fan and Drive
Quantity 1 1 1 1 1 Type FC FC FC FC FC Size 28-25 28-25 28-25 28-28 28-28 Motor Size Range (Min. to Max. Hp) 7.5-60 7.5-60 7.5-60 7.5-60 7.5-60 Air Flow Range (Min. to Max. m3/hr) 23785-54,367 23785-54,367 30582-61164 30582-61164 30582-61164 Static Pressure Range (Min. to Max. ESP) 0-995 Pa 0-995 Pa 0-995 Pa 0-995 Pa 0-995 Pa
Exhaust Fan
Quantity 2 2 2 2 2 Type FC FC FC FC FC Size 18-18 18-18 18-18 18-18 18-18 Motor Size Range (Min. to Max. HP) 10-20 10-20 10-20 10-20 10-20 Air Flow Range (Min. to Max. m3/hr) 0-33980 0-33980 0-33980 0-33980 0-33980 Static Pressure Range (Min. to Max. ESP) 0-498 Pa 0-498 Pa 0-498 Pa 0-498 Pa 0-498 Pa
14
YORK INTERNATIONAL
Page 15
FORM 100.50-EG3 (802)
T ABLE 1 – PHYSICAL DATA – MODELS 75-95 (CONT’D)
MODEL SIZE 075 080 085 090 095 Evaporator Coil
Size (Square Meters) 5 5 5 5 5 Number of Rows/Fins per cm 1 1 1 1 1 Tube Diameter (cm) /Surface 5/4 /enhanced 5/4 /enhanced 5/4 /enhanced 5/4 /enhanced 5/4 /enhanced
Condenser Coil (Aluminum Fins)
Size (Square Meters) 17 17 17 17 17 Number of Rows/Fins per cm 0 0 0 0 0 Tube Diameter (cm) 1 1 1 1 1
Condenser Coil (Copper Fins - Opt)
Size (Square Meters) 17 17 17 17 17 Number of Rows/Fins per cm 0 0 0 0 0 Tube Diameter 1 1 1 1 1
Condenser Fans
Quantity 6 6 6 6 6 Type Prop. Prop. Prop. Prop. Prop. Diameter (Meters) 1 1 1 1 1 Power (Hp Each) 2 2 2 2 2
Filters - 5.08cm Throwaway
Quantity 10 / 15 10 / 15 10 / 15 12 / 18 12 / 18 Size (Length x Width) (Meters) 6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 7 7 7 9 9
Filters - 5.08cm Cleanable
Quantity 10 / 15 10 / 15 10 / 15 12 / 18 12 / 18 Size (Length x Width) (Meters) .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 7 7 7 9 9
Filters - 5.08cm Pleated (30% Efficient)
Quantity 10 / 15 10 / 15 10 / 15 12 / 18 12 / 18 Size (Length x Width) (Meters) .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 7 7 7 9 9
Filters -30.48cm Rigid 65%, 5.08cm 30% Prefilter
Quantity 2 / 8 / 9 2 / 8 / 9 2 / 8 / 9 8 / 12 8 / 12 Size (Length x Width) (Meters) .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 1 1 1 2 2
Filters -30.48cm Rigid 95%, 5.08cm 30% Prefilter
Quantity 2 / 8 / 9 2 / 8 / 9 2 / 8 / 9 8 / 12 8 / 12 Size (Length x Width) (Meters) .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .4x.5 /.6x.4 /.6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 1 1 1 2 2
Filters - 5.08cm Carbon (30% Efficient)
Quantity 10 / 15 10 / 15 10 / 15 12 / 18 12 / 18 Size (Length x Width) (Meters) .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 .6x.4 / .6x.5 Total Filter Face Area (Square Meters) 2 2 2 2 2 Minimum OA Temp. for Mech. Cig. 45 45 45 45 45
YORK INTERNATIONAL
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Page 16

Cooling Performance Data – 50 Ton Model

T ABLE 2 – COOLING PERFORMANCE DA TA* – 50 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
22653 19 179 162 175 148 173 134 173 121 171 108 170 96
25485 19 180 165 175 150 173 135 173 122 172 109 171 97
29733 19 181 168 176 152 175 138 174 124 173 110 172 97
31148 19 186 184 181 163 180 147 179 130 178 115 176 100
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 189 141 188 125 187 111 186 99 186 86
17 179 179 170 172 164 169 160 156 156 143 157 125 22 190 143 189 126 188 112 187 100 187 8 6
17 180 180 172 174 166 168 161 153 157 140 158 122 22 191 146 190 128 189 113 188 101 187 8 7
17 181 181 173 176 167 164 162 150 158 137 159 119 22 196 156 193 134 193 119 192 104 191 8 9
17 189 189 181 183 175 179 167 158 165 144 164 126
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
22653 19 173 159 170 146 167 131 167 118 165 107 164 93
25485 19 174 162 171 148 168 133 168 119 166 107 165 94
29733 19 175 165 171 150 169 135 169 120 167 107 166 94
31148 19 182 182 175 159 174 144 173 128 171 109 170 9 7
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 182 138 181 121 180 108 180 96 179 83
17 173 173 166 167 159 150 156 140 153 128 153 114 22 183 140 182 123 181 109 180 97 180 84
17 175 175 167 169 160 152 157 142 154 130 154 115 22 184 143 183 124 182 110 181 97 180 84
17 177 177 169 171 162 155 158 144 155 132 155 117 22 188 153 187 132 186 116 185 101 184 8 7
17 184 184 176 178 169 169 162 153 159 140 159 125
32 30 28 27 25 23
16
YORK INTERNATIONAL
Page 17
FORM 100.50-EG3 (802)
T ABLE 2 – COOLING PERFORMANCE DATA* – 50 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
22653 19 164 154 162 142 160 128 160 114 160 102 159 90
25485 19 165 156 163 144 161 130 161 115 161 103 160 90
29733 19 167 160 164 146 162 132 162 117 162 104 161 91
31148 19 175 177 169 157 167 141 166 125 165 109 164 9 4
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 175 136 175 119 174 105 173 93 173 80
17 168 168 161 163 150 147 150 135 148 126 147 111 22 176 138 176 120 174 106 174 94 173 81
17 169 169 162 164 152 149 151 137 149 127 148 113 22 177 140 176 122 175 108 175 95 174 81
17 171 171 164 166 154 152 152 140 150 129 149 114 22 181 149 180 129 179 113 178 98 177 83
17 179 179 171 173 163 164 155 151 153 137 152 120
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
22653 19 159 153 155 138 154 126 152 112 151 99 151 87
25485 19 160 156 156 140 154 127 153 113 152 100 151 87
29733 19 162 158 157 142 155 129 154 114 153 101 152 88
31148 19 169 172 160 151 160 137 159 121 158 106 156 9 1
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 168 133 167 115 165 101 164 90 163 78
17 161 161 154 156 145 147 142 132 140 123 139 109 22 169 135 168 116 166 102 165 90 164 78
17 163 163 155 157 147 149 143 135 140 124 139 110 22 170 137 169 118 167 104 166 91 165 79
17 165 165 157 158 149 151 144 138 142 126 140 111 22 174 147 172 125 171 109 170 95 169 80
17 172 172 163 165 157 160 150 150 146 134 145 118
32 30 28 27 25 23
YORK INTERNATIONAL
17
Page 18

Cooling Performance Data – 55 Ton Model

T ABLE 3 – COOLING PERFORMANCE DA TA* – 55 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
20388 19 185 167 181 153 181 139 182 125 180 113 178 100
27184 19 192 186 186 166 186 150 186 134 185 119 183 104
32706 19 202 2 11 193 183 193 164 192 145 192 127 190 109
33980 19 204 213 194 185 193 166 193 147 193 128 191 110
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 197 148 197 130 196 116 195 103 194 8 9
17 183 183 175 178 166 171 167 147 166 136 166 123 22 202 159 201 138 201 123 200 107 198 92
17 193 193 185 187 177 174 173 159 171 146 171 131 22 209 175 207 150 207 132 206 113 204 96
17 206 206 197 199 190 195 180 176 178 159 177 141 22 210 177 208 151 208 133 206 114 205 96
17 208 208 199 201 192 197 181 178 179 161 178 143
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
20388 19 178 162 175 150 175 136 175 122 174 113 173 97
27184 19 186 182 180 162 179 147 179 131 178 113 177 101
32706 19 197 205 187 178 186 162 185 143 184 122 183 106
33980 19 198 207 187 180 187 164 186 144 185 123 184 107
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 190 145 190 126 189 113 189 100 187 8 7
17 178 178 171 173 163 167 162 145 161 133 160 119 22 195 156 194 135 193 120 193 107 192 89
17 188 188 180 182 172 170 167 156 165 143 165 128 22 201 171 200 148 199 129 198 129 197 92
17 200 200 192 194 184 189 173 171 171 157 171 140 22 202 173 201 149 200 130 199 132 198 92
17 202 202 193 196 185 190 174 173 172 158 172 142
32 30 28 27 25 23
18
YORK INTERNATIONAL
Page 19
FORM 100.50-EG3 (802)
T ABLE 3 – COOLING PERFORMANCE DATA* – 55 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
20388 19 166 159 164 144 162 130 161 116 161 104 161 91
27184 19 175 174 169 157 168 141 167 125 165 111 165 96
32706 19 191 200 181 176 180 159 179 140 175 121 177 104
33980 19 194 202 183 179 181 161 181 142 177 123 178 105
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 177 139 175 120 174 106 173 94 172 80
17 166 166 160 162 152 151 149 137 147 127 146 113 22 182 150 181 130 180 115 180 105 178 84
17 177 177 170 172 162 164 156 153 154 137 153 121 22 193 166 193 144 193 127 191 128 190 90
17 195 195 186 188 179 184 167 174 165 153 164 135 22 195 168 194 146 194 128 193 131 192 91
17 197 197 188 190 182 187 169 176 167 156 166 137
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
20388 19 166 158 164 144 161 130 161 115 161 104 160 91
27184 19 173 173 166 154 165 140 165 124 164 110 164 95
32706 19 184 192 170 169 171 154 171 136 169 118 168 100
33980 19 185 193 171 171 172 156 172 137 170 119 169 101
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 177 139 175 119 174 106 173 94 172 80
17 166 166 160 162 152 151 149 137 147 126 146 113 22 181 150 179 129 178 113 177 98 176 83
17 175 175 166 168 160 162 155 152 152 136 151 121 22 185 165 185 141 183 122 184 105 181 87
17 187 187 175 176 172 177 164 172 158 150 157 131 22 186 167 185 143 184 123 185 106 182 87
17 189 189 176 178 173 178 165 173 159 151 158 133
32 30 28 27 25 23
YORK INTERNATIONAL
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Page 20

Cooling Performance Data – 60 Ton Model

T ABLE 4 – COOLING PERFORMANCE DA TA* – 60 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 213 199 205 177 205 147 204 144 204 129 202 113
30582 19 224 225 213 199 213 173 212 160 212 141 210 121
35679 19 232 242 219 215 219 195 218 171 217 149 215 126
38228 19 234 244 221 219 220 201 219 174 219 151 216 127
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 224 170 223 150 222 119 221 117 219 101
17 209 209 200 203 196 169 189 175 186 160 187 139 22 232 192 229 165 229 138 228 125 226 106
17 225 225 215 218 208 202 198 192 196 180 195 170 22 238 208 234 176 233 156 232 131 231 110
17 237 237 226 228 217 224 204 205 203 199 201 195 22 239 213 235 178 234 161 233 133 232 111
17 239 239 229 231 220 226 206 208 205 204 203 202
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 208 186 199 160 198 154 197 141 196 127 195 110
30582 19 218 216 210 182 206 173 205 156 203 133 202 117
35679 19 225 235 218 210 212 191 210 167 208 142 207 123
38228 19 227 236 221 217 213 196 211 170 209 144 208 124
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 216 167 214 146 213 126 213 113 2 11 98
17 204 204 195 197 188 179 184 168 182 153 183 135 22 223 188 221 162 220 139 219 122 218 103
17 219 219 209 211 201 199 192 187 187 179 184 169 22 229 204 226 174 225 151 223 129 222 107
17 229 229 219 222 210 216 198 201 191 198 185 192 22 230 208 227 177 226 155 225 130 223 108
17 232 232 222 224 213 219 199 205 192 202 186 195
32 30 28 27 25 23
20
YORK INTERNATIONAL
Page 21
FORM 100.50-EG3 (802)
T ABLE 4 – COOLING PERFORMANCE DATA* – 60 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 200 187 190 171 190 154 190 137 189 122 188 106
30582 19 210 208 198 188 197 172 197 152 195 133 194 11 4
35679 19 218 227 204 209 203 185 201 163 199 141 198 11 9
38228 19 220 229 206 217 204 189 202 166 200 144 199 121
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 208 165 206 143 205 126 205 110 204 94
17 197 197 189 191 179 179 177 163 175 150 175 133 22 213 182 212 158 211 139 210 119 209 99
17 211 211 202 205 193 197 185 183 180 166 181 147 22 217 195 217 168 216 148 214 125 213 103
17 222 222 212 214 204 209 190 197 183 178 185 157 22 218 198 218 171 217 150 215 127 214 104
17 224 224 214 217 206 212 192 200 184 181 186 159
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 187 187 182 169 182 150 181 134 179 118 178 103
30582 19 200 206 190 187 188 168 188 149 186 130 185 11 0
35679 19 210 219 195 200 193 180 193 159 191 138 190 11 5
38228 19 213 222 197 204 194 184 194 162 192 140 191 11 7
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 199 160 197 138 195 121 194 106 192 91 ––
17 190 190 181 183 172 174 167 160 165 147 165 131 22 203 177 203 154 202 134 200 115 199 96 ––
17 204 204 192 194 186 190 179 182 173 162 173 144 22 206 190 207 166 206 143 205 121 204 100 ––
17 214 214 200 202 197 202 188 196 178 173 178 154 22 207 193 208 169 208 145 206 123 205 100 ––
17 216 216 202 204 199 205 190 199 179 176 180 156
32 30 28 27 25 23
YORK INTERNATIONAL
21
Page 22

Cooling Performance Data – 65 Ton Model

T ABLE 5 – COOLING PERFORMANCE DA TA* – 65 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 215 196 209 179 208 162 208 146 207 130 206 114
30582 19 225 226 217 201 217 182 216 161 215 142 214 122
35679 19 234 244 223 216 222 194 221 171 220 149 218 128
38228 19 236 246 224 219 223 197 222 173 221 151 220 129
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 226 172 226 150 225 134 224 118 223 102
17 211 211 202 205 193 186 194 172 192 159 192 143 22 235 193 233 166 232 147 231 127 230 108
17 227 227 218 220 209 210 202 193 200 176 199 157 22 240 206 238 177 237 155 236 133 234 111
17 238 238 227 224 219 215 208 196 205 177 204 155 22 241 210 239 180 238 157 237 134 236 112
17 240 240 230 213 222 194 209 173 206 154 205 132
32 30 28 27 25 23
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 210 193 201 175 201 159 201 142 200 127 199 111
30582 19 218 220 209 197 209 178 208 157 207 138 206 119
35679 19 227 237 214 212 214 190 212 167 211 146 210 124
38228 19 229 239 216 215 215 193 214 170 212 148 211 125
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 218 168 217 147 217 131 216 115 214 99
17 205 205 197 199 188 182 187 169 185 156 184 139 22 226 189 224 163 224 143 223 123 221 104
17 221 221 211 214 203 204 195 189 193 173 192 154 22 231 203 229 173 228 151 227 129 225 108
17 231 231 220 221 212 217 200 202 197 184 196 162 22 232 206 230 176 229 153 228 131 226 109
17 233 233 221 218 215 216 201 203 199 185 198 162
32 30 28 27 25 23
22
YORK INTERNATIONAL
Page 23
FORM 100.50-EG3 (802)
T ABLE 5 – COOLING PERFORMANCE DATA* – 65 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 202 189 194 172 193 155 193 138 192 123 191 107
30582 19 210 213 202 194 200 174 200 154 198 135 197 11 5
35679 19 219 229 207 207 205 186 204 164 202 142 201 120
38228 19 222 231 209 211 206 189 205 166 204 144 202 121
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 210 165 209 143 208 127 207 111 206 95
17 199 199 190 193 181 179 180 165 178 152 177 135 22 217 186 215 159 215 140 214 120 212 100
17 214 214 204 207 196 199 187 185 185 169 184 149 22 222 199 219 169 219 148 218 126 216 104
17 223 223 213 215 205 211 192 198 189 180 188 158 22 223 203 220 172 220 150 219 127 217 105
17 225 225 215 218 207 213 193 202 190 183 189 161
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
23786 19 194 186 186 168 185 152 185 135 184 120 183 104
30582 19 202 207 192 188 192 170 191 150 190 131 189 111
35679 19 211 220 196 201 196 182 195 159 193 138 192 11 6
38228 19 214 223 197 205 197 185 196 162 194 140 193 11 8
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 201 161 200 139 199 123 198 107 197 91
17 191 191 184 187 173 175 172 161 170 148 170 131 22 208 182 206 156 205 136 205 116 203 97
17 206 206 195 197 188 192 182 184 177 165 176 145 22 212 195 211 166 209 144 209 122 207 100
17 215 215 201 202 197 196 189 186 181 165 180 143 22 213 198 212 169 210 146 210 123 207 101
17 217 217 202 199 200 183 191 162 182 142 181 120
32 30 28 27 25 23
YORK INTERNATIONAL
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Page 24

Cooling Performance Data – 70 Ton Model

T ABLE 6 – COOLING PERFORMANCE DA TA* – 70 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 223 222 220 194 220 176 220 157 218 139 216 121
33980 19 239 249 234 224 230 199 229 175 227 153 225 131
37378 19 244 255 241 240 234 210 232 183 231 159 229 135
38228 19 245 256 242 242 234 212 233 185 231 160 229 136
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 238 186 237 162 236 147 235 125 233 106
17 226 226 220 219 209 206 206 188 202 171 202 153 22 249 211 246 180 246 162 244 136 242 114
17 243 243 240 242 224 230 220 214 212 192 211 170 22 252 224 250 190 249 169 247 140 246 117
17 249 249 247 250 229 235 227 226 216 202 214 178 22 253 226 250 191 249 170 248 141 246 118
17 250 250 248 251 229 235 229 228 217 204 215 179
32 30 28 27 25 23
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 223 218 213 192 212 173 212 153 210 136 209 118
33980 19 239 244 226 221 222 195 221 170 219 149 218 127
37378 19 244 255 233 236 225 206 224 179 222 155 221 131
38228 19 245 256 235 239 226 207 224 180 223 156 221 132
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 230 183 229 159 228 140 227 122 225 104
17 226 226 213 212 208 206 198 184 195 168 195 149 22 240 208 238 177 237 154 236 133 231 109
17 243 243 232 235 224 230 212 209 205 189 203 166 22 244 220 241 186 240 161 239 137 234 112
17 249 249 239 242 228 235 219 221 208 199 206 173 22 244 222 242 188 240 162 239 138 235 113
17 249 249 241 243 229 235 220 224 209 200 207 175
32 30 28 27 25 23
24
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FORM 100.50-EG3 (802)
T ABLE 6 – COOLING PERFORMANCE DATA* – 70 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 216 215 205 196 204 174 204 153 202 134 201 11 4
33980 19 232 242 218 216 213 191 212 167 211 145 209 123
37378 19 237 247 225 231 217 201 215 175 214 151 212 127
38228 19 238 248 226 233 217 203 216 176 214 152 213 128
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 221 185 220 159 218 139 218 119 216 100
17 219 219 205 204 201 199 191 186 187 169 187 149 22 231 203 229 173 227 150 227 129 225 108
17 236 235 224 226 216 222 204 204 196 184 195 161 22 234 215 232 182 230 157 230 133 228 111
17 241 241 230 233 221 227 211 216 200 194 198 169 22 235 217 232 183 230 158 230 134 228 111
17 242 242 232 234 221 228 212 218 201 195 199 170
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 213 211 202 194 198 172 197 152 196 133 195 11 3
33980 19 224 234 209 212 205 187 204 163 202 141 201 11 9
37378 19 229 239 216 226 208 197 206 171 205 147 203 123
38228 19 230 240 217 228 209 199 207 172 205 148 204 124
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 215 184 213 157 212 138 211 118 209 99
17 215 215 202 201 197 195 188 184 183 168 181 148 22 222 200 220 169 219 147 217 125 216 104
17 228 228 215 217 209 215 196 200 189 181 187 158 22 225 211 223 178 221 153 220 129 218 107
17 233 233 221 224 213 219 202 211 192 190 190 165 22 226 213 223 179 222 154 221 130 219 107
17 234 234 222 225 214 220 204 213 193 192 191 167
32 30 28 27 25 23
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Page 26

Cooling Performance Data – 75 Ton Model

T ABLE 7 – COOLING PERFORMANCE DA TA* – 75 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 228 210 217 191 216 174 216 155 215 137 214 119
33980 19 244 237 231 220 227 198 226 174 224 153 223 131
37378 19 252 246 238 234 230 209 229 184 228 160 226 136
38228 19 254 247 239 237 231 212 230 186 228 161 227 136
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 244 183 233 159 233 141 232 123 230 104
17 228 219 215 214 202 201 202 184 200 170 199 151 22 255 211 243 181 242 158 241 136 240 112
17 248 238 234 237 217 224 216 209 2 11 193 209 170 22 259 224 247 191 245 166 244 141 243 116
17 255 245 242 245 223 229 224 220 215 205 212 179 22 259 226 247 193 246 168 245 142 243 117
17 256 246 243 246 224 230 225 222 216 207 213 180
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 220 210 217 191 216 174 216 155 215 137 214 119
33980 19 236 237 231 220 227 198 226 174 224 153 223 131
37378 19 244 246 238 234 230 209 229 184 228 160 226 136
38228 19 245 247 239 237 231 212 230 186 228 161 227 136
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 235 183 233 159 233 141 232 123 230 104
17 224 219 215 214 202 201 202 184 200 170 199 151 22 246 211 243 181 242 158 241 136 240 112
17 243 238 234 237 217 224 216 209 2 11 193 209 170 22 250 224 247 191 245 166 244 141 243 116
17 250 245 242 245 223 229 224 220 215 205 212 179 22 250 226 247 193 246 168 245 142 243 117
17 251 246 243 246 224 230 225 222 216 207 213 180
32 30 28 27 25 23
26
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FORM 100.50-EG3 (802)
T ABLE 7 – COOLING PERFORMANCE DATA* – 75 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
22718484271 19 219 210 217 191 216 174 216 155 215 137 214 119
33980 19 235 237 231 220 227 198 226 174 224 153 223 131
37378 19 243 246 238 234 230 209 229 184 228 160 226 136
38228 19 244 247 239 237 231 212 230 186 228 161 227 136
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 226 183 233 159 233 141 232 123 230 104
17 219 219 215 214 202 201 202 184 200 170 199 151 22 236 211 243 181 242 158 241 136 240 112
17 238 238 234 237 217 224 216 209 211 193 209 170 22 240 224 247 191 245 166 244 141 243 116
17 245 245 242 245 223 229 224 220 215 205 212 179 22 241 226 247 193 246 168 245 142 243 117
17 246 246 243 246 224 230 225 222 216 207 213 180
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 212 210 217 191 216 174 216 155 215 137 214 11 9
33980 19 227 237 231 220 227 198 226 174 224 153 223 131
37378 19 235 246 238 234 230 209 229 184 228 160 226 136
38228 19 236 247 239 237 231 212 230 186 228 161 227 136
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 217 183 233 159 233 141 232 123 230 104
17 212 219 215 214 202 201 202 184 200 170 199 151 22 227 211 243 181 242 158 241 136 240 112
17 230 238 234 237 217 224 216 209 211 193 209 170 22 231 224 247 191 245 166 244 141 243 116
17 237 245 242 245 223 229 224 220 215 205 212 179 22 231 226 247 193 246 168 245 142 243 117
17 238 246 243 246 224 230 225 222 216 207 213 180
32 30 28 27 25 23
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Page 28

Cooling Performance Data – 80 Ton Model

T ABLE 8 – COOLING PERFORMANCE DATA* – 80 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 248 224 244 204 244 186 243 167 241 149 240 131
30582 19 256 239 250 216 250 196 249 175 247 156 246 136
37378 19 272 268 261 240 260 216 259 191 257 167 255 145
45307 19 293 301 271 265 269 237 268 208 265 180 263 154
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 265 195 264 172 262 153 261 135 259 116
17 251 251 239 233 226 216 225 196 224 182 223 162 22 272 207 270 181 269 160 267 140 266 120
17 259 259 251 250 237 236 231 208 230 192 229 171 22 282 228 281 198 279 173 277 150 275 127
17 277 277 268 271 253 260 247 236 239 210 238 185 22 290 252 289 216 287 187 285 160 283 133
17 298 298 278 281 264 271 267 274 247 230 246 200
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 240 220 235 200 235 181 234 163 233 146 231 127
30582 19 247 235 242 212 241 191 240 171 239 152 237 132
37378 19 263 264 252 235 251 211 250 186 248 164 246 140
45307 19 284 296 262 260 259 232 258 202 256 176 254 149
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 256 192 254 168 253 150 252 131 250 112
17 243 243 231 225 226 216 218 193 215 177 215 158 22 262 203 261 176 259 156 258 137 256 117
17 251 251 243 241 237 236 224 205 221 187 220 167 22 272 224 271 193 269 169 267 146 265 123
17 268 268 259 262 253 260 239 233 230 204 230 181 22 280 247 279 211 277 183 275 156 273 129
17 289 289 268 272 263 271 259 270 238 224 237 195
32 30 28 27 25 23
28
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Page 29
FORM 100.50-EG3 (802)
T ABLE 8 – COOLING PERFORMANCE DA TA* – 80 TON MODEL
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 235 229 227 196 226 177 226 160 224 142 222 123
30582 19 242 245 233 208 232 187 232 167 230 148 228 128
37378 19 257 269 242 231 241 206 241 182 239 159 237 136
45307 19 277 289 252 255 249 227 248 199 246 171 244 145
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 247 189 245 164 244 146 242 127 241 109
17 237 237 222 216 219 209 210 189 207 173 206 154 22 253 200 251 172 250 153 248 133 246 114
17 245 245 233 232 230 228 216 200 213 182 212 162 22 262 221 260 188 259 165 257 142 255 120
17 262 262 249 252 245 252 230 227 221 200 221 176 22 270 243 268 206 267 178 265 151 262 126
17 282 282 258 261 255 262 249 260 228 219 228 190
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 235 229 219 194 217 174 216 155 215 138 213 120
30582 19 242 244 224 206 223 184 222 162 220 143 219 124
37378 19 257 269 234 228 232 202 230 177 229 154 227 132
45307 19 277 289 243 251 239 223 238 193 236 166 234 141
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 237 185 235 161 234 142 233 124 231 105
17 237 237 214 209 212 202 202 184 198 169 198 150 22 243 196 241 169 240 148 238 129 236 109
17 245 245 225 224 222 220 208 196 204 178 203 158 22 252 216 250 185 249 160 247 138 245 115
17 261 261 240 243 236 243 221 222 212 195 212 172 22 259 238 258 202 256 173 255 147 252 121
17 282 282 249 252 246 253 239 250 219 213 218 185
32 30 28 27 25 23
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Page 30

Cooling Performance Data – 85 Ton Model

T ABLE 9 – COOLING PERFORMANCE DA TA* – 85 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 260 232 255 213 255 194 255 175 253 156 252 137
30582 19 267 249 263 227 262 206 262 184 260 164 259 143
37378 19 285 280 274 253 273 228 272 202 271 178 269 153
45307 19 309 315 284 281 283 252 281 221 279 192 277 164
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 277 204 277 180 275 160 274 141 273 121
17 258 258 247 239 239 220 236 204 234 190 233 171 22 285 217 284 190 282 169 281 148 279 125
17 269 269 260 257 246 235 244 218 241 201 240 180 22 296 242 294 209 293 184 292 159 290 134
17 290 290 277 281 264 262 258 247 252 222 250 196 22 306 269 303 229 302 200 300 170 298 142
17 314 314 289 293 287 292 276 283 261 245 258 214
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 250 229 246 209 246 190 245 171 244 152 243 133
30582 19 257 245 254 222 253 202 252 180 251 160 249 139
37378 19 275 276 265 248 263 223 262 197 261 173 259 149
45307 19 297 310 274 275 273 247 270 215 269 187 267 159
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 267 200 267 176 266 157 264 137 263 117 ––
17 249 249 240 232 232 224 228 201 225 185 225 166 22 275 213 273 186 272 165 271 144 269 122 ––
17 259 259 252 250 239 238 235 214 232 196 231 175 22 286 237 284 204 283 180 281 155 279 130 ––
17 279 279 269 272 256 263 249 243 242 216 241 191 22 295 264 292 224 291 195 289 166 287 138 ––
17 302 302 281 284 279 287 267 278 251 238 249 208
32 30 28 27 25 23
30
YORK INTERNATIONAL
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FORM 100.50-EG3 (802)
T ABLE 9 – COOLING PERFORMANCE DA TA* – 85 TON MODEL
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 241 223 237 204 236 185 236 166 234 148 233 129
30582 19 248 239 244 217 242 196 242 175 241 155 240 135
37378 19 264 269 254 242 253 218 252 192 250 168 249 144
45307 19 286 299 263 268 262 241 260 210 258 182 257 154
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 257 196 256 172 255 153 254 133 252 114
17 239 239 233 225 232 223 219 196 217 181 216 162 22 264 209 263 181 262 161 261 140 259 118
17 249 249 244 242 239 238 226 209 223 192 222 170 22 275 233 273 199 272 175 270 151 268 126
17 269 269 261 264 256 263 240 237 233 212 231 186 22 284 258 281 218 280 190 278 161 276 134
17 291 291 272 276 279 287 256 268 242 234 239 203
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
27184 19 231 219 227 199 226 181 226 162 225 144 224 124
30582 19 238 234 234 212 232 192 232 171 231 151 230 130
37378 19 254 263 244 237 242 212 242 187 240 164 239 140
45307 19 275 287 252 263 251 235 249 204 247 176 246 149
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 246 191 246 168 245 149 244 129 242 110
17 230 230 224 217 224 216 210 191 208 177 207 157 22 253 204 252 177 251 156 250 135 248 114
17 240 240 235 233 231 230 216 204 214 187 213 165 22 263 227 262 195 261 170 259 146 257 122
17 258 258 251 254 247 254 230 231 223 206 222 181 22 272 252 270 213 269 185 267 156 264 130
17 280 280 262 265 270 277 245 256 232 228 229 197
32 30 28 27 25 23
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Page 32

Cooling Performance Data – 90 Ton Model

TABLE 10 – COOLING PERFORMANCE DATA* – 90 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 292 272 286 247 286 224 285 200 283 179 282 156
40776 19 311 307 298 277 297 249 296 220 294 195 293 168
45307 19 325 328 305 295 304 265 301 233 300 205 298 175
50970 19 335 345 310 310 308 277 306 242 304 212 302 180
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 310 233 308 206 307 183 306 161 304 137
17 293 293 286 286 269 258 266 239 262 219 262 195 22 322 260 320 228 318 201 317 174 315 146
17 317 317 305 308 289 287 281 269 274 243 272 214 22 329 278 325 242 324 211 322 182 320 152
17 330 330 314 318 302 305 290 290 280 258 278 225 22 334 292 330 252 328 219 326 188 324 157
17 341 341 321 325 313 319 297 305 284 269 282 234
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 281 268 277 243 276 220 275 196 273 174 272 152
40776 19 300 302 288 272 287 244 285 215 284 189 282 163
45307 19 313 322 295 291 293 260 291 227 289 199 287 169
50970 19 323 337 300 305 298 272 295 236 293 206 291 175
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 299 233 298 202 296 179 295 157 293 133
17 282 282 277 278 262 263 257 234 253 214 252 191 22 311 260 309 223 307 196 306 169 303 142
17 305 305 296 300 280 288 271 264 264 237 263 209 22 317 278 314 237 313 206 311 177 309 148
17 318 318 305 309 294 302 280 284 270 252 268 220 22 322 292 318 247 317 214 315 183 313 152
17 329 329 312 316 304 313 287 299 274 263 272 229
32 30 28 27 25 23
32
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FORM 100.50-EG3 (802)
TABLE 10 – COOLING PERFORMANCE DATA* – 90 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 273 262 266 238 265 215 264 191 263 169 261 147
40776 19 291 295 278 267 276 239 275 210 273 184 271 158
45307 19 304 314 284 285 282 254 280 222 278 193 276 165
50970 19 314 328 289 298 286 265 284 231 282 201 280 170
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 288 227 286 197 285 174 284 152 282 129
17 274 274 269 270 262 263 247 228 243 209 243 186 22 299 254 297 218 295 191 294 165 292 138
17 296 296 288 291 280 288 261 257 254 232 253 204 22 305 272 302 231 301 201 299 172 297 143
17 309 309 296 300 294 302 269 275 259 247 258 215 22 310 285 306 241 304 209 303 178 300 147
17 319 319 303 307 304 312 276 288 264 258 262 223
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 260 256 255 233 254 210 253 186 252 164 250 143
40776 19 277 287 267 260 265 233 263 204 261 179 260 153
45307 19 289 302 272 278 270 248 268 216 266 188 265 159
50970 19 299 312 277 291 274 260 272 225 270 195 268 164
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 276 223 274 192 273 170 272 148 270 125
17 261 261 259 259 253 253 237 223 233 204 232 181 22 287 249 285 212 283 186 282 159 280 133
17 282 282 276 279 271 278 250 252 243 226 242 198 22 293 266 290 225 288 196 287 167 284 138
17 294 294 284 288 284 292 258 267 248 240 247 208 22 297 279 294 235 292 203 290 172 288 143
17 304 304 291 295 293 302 264 276 252 251 251 216
32 30 28 27 25 23
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Page 34

Cooling Performance Data – 95 Ton Model

TABLE 11 – COOLING PERFORMANCE DAT A* – 95 TON MODEL
29.4°C AIR ON CONDENSER COIL
CAPACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 304 293 298 265 298 241 299 215 297 191 295 159
40776 19 324 317 311 287 311 259 310 231 308 204 306 169
45307 19 339 341 318 306 317 276 316 244 314 214 312 176
50970 19 349 360 323 321 322 289 320 254 319 222 316 181
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 324 250 323 222 322 197 321 171 319 143
17 310 310 298 302 282 272 278 256 275 235 274 203 22 337 271 335 239 334 210 332 182 330 152
17 330 330 313 317 299 292 293 280 287 254 285 218 22 343 289 341 253 339 221 338 190 336 158
17 344 344 323 327 313 313 303 301 293 270 291 230 22 349 303 346 264 344 230 342 196 340 163
17 355 355 330 334 324 330 310 317 298 282 295 238
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
35°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 293 288 289 261 288 236 288 210 286 186 284 155
40776 19 313 312 301 282 300 254 299 225 297 199 295 164
45307 19 326 335 308 301 306 271 305 238 303 209 301 171
50970 19 337 352 313 316 311 283 309 248 307 216 305 176
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 312 250 312 217 311 192 309 166 307 139
17 298 298 290 293 274 278 268 251 265 230 264 199 22 325 271 323 234 322 205 320 177 318 148
17 318 318 304 308 290 293 283 274 277 248 275 213 22 332 289 329 248 327 216 326 185 324 153
17 332 332 314 317 304 310 292 295 283 263 280 225 22 337 303 333 259 332 224 330 191 328 158
17 342 342 321 325 315 324 299 311 287 275 285 233
32 30 28 27 25 23
34
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FORM 100.50-EG3 (802)
TABLE 11 – COOLING PERFORMANCE DATA* – 95 TON MODEL (CONT’D)
40.5°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 288 285 282 258 282 233 281 207 279 183 277 152
40776 19 290 288 285 260 285 236 284 209 282 185 280 154
45307 19 292 289 287 262 286 237 285 210 284 186 282 155
50970 19 293 291 288 263 288 238 287 211 285 187 283 155
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 305 247 304 214 303 189 301 164 300 137
17 293 293 285 288 272 277 262 248 259 227 258 196 22 308 249 307 216 305 191 304 165 302 138
17 297 297 289 292 275 281 266 251 263 230 261 198 22 309 250 308 217 307 192 305 166 303 139
17 300 300 291 295 278 283 268 254 265 232 264 200 22 310 251 309 218 308 192 306 166 304 139
17 302 302 294 297 280 286 271 256 267 234 266 202
32 30 28 27 25 23
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
46.1°C AIR ON CONDENSER COIL
CAP ACITY (kW) AT ENTERING DRY BULB (°C)
m3/hr
33980 19 275 279 271 252 270 227 269 202 267 177 266 147
40776 19 278 282 274 255 273 230 272 204 270 179 268 149
45307 19 280 283 275 256 274 231 273 205 272 180 270 150
50970 19 281 285 277 257 275 232 275 206 273 181 271 150
* Rated performance is at sea level. Cooling capacities are gross cooling capacity.
ENTERING
WB (°C) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC
22 293 241 291 209 290 184 289 159 287 132
17 280 280 275 278 264 272 251 242 248 221 247 190 22 296 243 294 211 292 185 291 160 289 133
17 284 284 279 282 268 275 254 245 252 224 250 193 22 297 244 295 212 294 186 292 161 291 134
17 287 287 281 285 271 278 257 248 254 226 253 195 22 298 244 296 213 295 187 293 162 292 134
17 289 289 284 287 273 280 259 249 256 228 254 196
32 30 28 27 25 23
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Page 36

Heating Performance Data – Gas/Electric Heat

GAS HEATING
T ABLE 12 – GAS HEAT PERFORMANCE DATA
UNIT
50-65
70-85 750 600 18944 47147 20-50
90-95 750 600 18944 47147 20-50
GAS INPUT CAP ACITY MAXIMUM OUTPUT CAP ACITY AIRFLOW (m3/hr) TEMP. RISE
(BTU/HR X 1000) (BTU/HR X 1000) MIN. MAX. (°C)
375 300 11808 47147 10-40 750 600 18944 47147 20-50 375 300 11808 47147 10-40
1125 900 25740 56619 25-55
375 300 11808 47147 10-40
1125 900 25740 56619 25-55
ELECTRIC HEATING
T ABLE 13 – ELECTRIC HEAT PERFORMANCE DATA
UNIT SIZE (kW)
40 40 40037 13,592 16
50-65 Ton
70-85 Ton
90-95 Ton 150 150 150140 23,786 34
80 80 80075 16,990 25 108 108 108101 20,388 28 150 150 150140 23,786 34
80 80 80075 16,990 25 108 108 108101 20,388 28 150 150 150140 23,786 34 200 200 200187 25,485 42
80 80 80075 16,990 25 108 108 108101 20,388 28
200 200 200187 25,485 42 250 250 250234 27,184 49
NOMINAL HEAT CAP ACITY AIR FLOW MIN MAX TEMP RISE
HEATER SIZE ( kW) (kW) (m3/hr) (°C)
36
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Page 37

Supply Fan Data

TABLE 14 – 50 THROUGH 65 T ON SUPPLY FAN DATA
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 245 373 498 622 747
STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM
16990 20388 4.0 515 5.1 601 6.3 675 23786 4.9 516 6.0 588 7.2 657 8.7 730 27184 6.2 528 7.5 597 8.8 662 10.3 727 29733 5.8 466 7.1 537 8.6 603 10.0 665 11.4 724 30582 6.1 470 7.5 540 8.9 605 10.4 666 11.8 723 32706 7.1 483 8.6 551 10.2 614 11.7 673 13.2 729 33980 7.7 491 9.3 558 10.9 619 12.5 677 14.1 732 37378 9.4 511 11.1 575 12.8 633 14.5 688 16.4 741 38228 9.9 517 11.6 579 13.4 637 15.1 692 17.0 744 40776 11.6 535 13.5 595 15.3 651 17.2 704 19.1 754 44174 13.9 559 15.9 616 17.9 669 20.0 720 22.0 768
FORM 100.50-EG3 (802)
TABLE 14 – 50 THROUGH 65 TON SUPPLY FAN DATA (CONT’D)
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 871 995 1120 1244 1369
STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM
16990 20388 23786 10.4 802 27184 11.8 789 13.5 851 15.2 908 29733 12.9 779 14.5 836 16.3 892 18.3 949 30582 13.3 776 14.9 831 16.7 886 18.7 942 20.7 999 32706 14.8 781 16.5 834 18.0 880 20.2 938 22.2 991 33980 15.7 784 17.4 835 18.8 880 21.1 936 23.0 986 37378 18.2 792 19.9 839 21.7 885 23.4 929 25.3 973 38228 18.9 794 20.7 841 22.4 887 24.2 930 26.1 973 40776 21.1 803 23.0 849 25.0 894 26.6 936 26.8 935 44174 24.0 814 26.2 860 28.4 903
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Page 38
Supply Fan Data (continued)
TABLE 15 – 70 THROUGH 85 T ON SUPPLY FAN DATA
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 245 373 498 622 747
STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM
27184 4.2 397 5.5 467 30582 5.3 411 6.7 478 8.2 538 9.8 596 11.4 646 33980 6.4 425 7.9 488 9.5 547 11.2 599 13.0 648 37378 7.8 441 9.6 503 11.3 559 14.0 610 14.9 658 40776 9.3 457 11.2 517 14.0 570 16.0 620 16.9 667 44174 11.3 475 13.3 533 15.4 585 17.4 633 19.5 678 45873 12.1 483 14.4 540 16.5 592 18.6 639 2.8 684 47572 13.8 492 15.4 548 17.7 599 19.8 645 22.4 689 50970 15.5 511 18.2 565 2.5 615 22.8 660 25.1 703 54368 17.9 530 2.6 582 23.3 631 25.8 674 28.2 716
TABLE 15 – 70 THROUGH 85 TON SUPPLY F AN DATA (CONT’D)
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 871 995 1120 1244 1369
STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM
27184 30582 33980 14.7 696 37378 16.8 704 18.6 745 2.9 791 40776 18.9 711 3.0 752 23.7 792 25.3 832 27.9 877 44174 21.6 721 23.8 762 26.0 801 28.3 840 3.8 879 45873 22.9 726 25.1 767 27.4 806 29.7 843 32.2 880 47572 24.3 731 26.5 772 28.8 810 31.2 847 33.7 881 50970 27.5 743.5 29.9 783 32.3 820 34.8 857 37.3 891 54368 3.8 756 33.3 794 35.8 830
38
YORK INTERNATIONAL
Page 39
TABLE 16 – 90 THROUGH 95 T ON SUPPLY FAN DATA
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 245 373 498 622 747
STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM
30582 6.3 460 7.9 524 9.9 591 12.6 670 33980 7.5 468 9.2 530 11.2 591 13.6 656 37378 8.7 475 1.6 535 12.5 590 14.5 641 40776 8.2 425 1.2 486 12.3 543 14.3 597 16.4 647 44174 9.6 438 11.8 497 13.9 551 16.2 603 18.4 652 47572 11.4 453 13.8 461 16.4 563 18.4 612 2.7 659 50970 13.2 467 15.6 424 18.1 574 2.6 621 23.9 666 53519 14.2 475 16.8 456 19.4 581 21.9 627 24.5 671 54368 15.4 483 17.9 488 2.7 587 23.3 633 25.9 676 57766 17.7 499 2.3 551 23.2 600 26.6 644 28.8 686 61164 2.3 515 23.1 556 26.2 614 29.6 657 32.6 698
FORM 100.50-EG3 (802)
TABLE 16 – 90 THROUGH 95 TON SUPPLY F AN DATA (CONT’D)
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 871 995 1120 1244 1369
STD. AIR kW RPM kW RPM kW RPM kW RPM kW RPM
30582 15.4 739 17.6 795 33980 16.6 717 18.7 776 22.2 841 24.5 899 37378 16.8 695 19.8 756 23.3 821 26.7 880 29.6 930 40776 18.7 697 21.3 749 24.3 804 27.5 856 3.7 907 44174 2.7 698 23.0 742 25.5 786 28.4 832 31.8 884 47572 23.2 705 25.6 748 28.2 789 3.9 832 34.5 877 50970 25.7 711 28.3 753 3.9 792 33.5 831 36.3 869 53519 27.2 715 29.8 757 32.6 796 35.2 834 38.2 872 54368 28.7 719 31.4 760 34.2 799 36.9 838 39.8 874 57766 31.6 727 34.6 767 37.5 806 4.4 844 43.3 879 61164 46.9 737 6.0 776 55.6 814 59.2 850
YORK INTERNATIONAL
39
Page 40

Component Static Pressure Drops

T ABLE 17 – COMPONENT STATIC PRESSURE DROPS
EVAPORATOR
SIZE
50
55
60 35679 173.23 117.46 45.29 65.23 39.04 17.04 33.14 59.51
65 35679 165.04 121.76 45.29 65.23 39.04 17.04 33.14 59.51
70 37378 95.36 64.18 27.38 41.57 73.81 30.12 11.68 25.07 46.43
75 37378 150.56 102.67 27.38 41.57 73.81 30.12 11.68 25.07 46.43
AIR FLOW COILS 50.1 cm 50.1 cm 50.1 cm 50.1 cm
m3/hr STD. AIR WET DRY BOTTOM FRONT SIDE THROWA W A Y CLEANABLE PLEATED CARBON
16990 24.83 17.59 10.27 14.79 13.14 3.48 10.26 20.98 20388 32.98 23.79 14.79 21.30 17.17 5.14 13.69 27.11 23786 41.93 30.71 20.13 28.99 21.53 7.16 17.46 33.66 27184 51.63 38.32 26.29 37.87 26.19 9.52 21.57 40.61 29733 59.36 44.45 31.45 45.30 29.87 11.54 24.85 46.06 30582 62.02 46.57 33.28 47.93 31.13 12.25 25.98 47.92 33980 73.08 55.46 41.08 59.17 36.34 15.35 30.68 55.57 35679 78.85 60.12 45.29 65.23 39.04 17.04 33.14 59.51 37378 84.78 64.94 49.71 71.59 41.80 18.82 35.67 63.53 40776 97.08 75.01 59.16 85.20 47.49 22.68 40.92 71.80 20388 42.85 32.25 14.79 21.30 17.17 5.14 13.69 27.11 23786 54.36 41.47 20.13 28.99 21.53 7.16 17.46 33.66 27184 66.81 51.56 26.29 37.87 26.19 9.52 21.57 40.61 30582 80.13 62.47 33.28 47.93 31.13 12.25 25.98 47.92 32706 88.89 69.70 38.06 54.81 34.36 14.15 28.88 52.66 33980 94.29 74.18 41.08 59.17 36.34 15.35 30.68 55.57 37378 109.24 86.66 49.71 71.59 41.80 18.82 35.67 63.53 40776 124.94 99.87 59.16 85.20 47.49 22.68 40.92 71.80 23786 98.97 61.80 20.13 28.99 21.53 7.16 17.46 33.66 27184 119.00 76.36 26.29 37.87 26.19 9.52 21.57 40.61 30582 140.02 92.01 33.28 47.93 31.13 12.25 25.98 47.92 33980 161.94 108.72 41.08 59.17 36.34 15.35 30.68 55.57
37378 184.72 126.44 49.71 71.59 41.80 18.82 35.67 63.53 40776 208.30 145.12 59.16 85.20 47.49 22.68 40.92 71.80 44174 232.64 164.73 69.43 99.99 53.42 26.91 46.44 80.34 45873 245.09 174.87 74.87 107.83 56.46 29.18 49.29 84.72
6 23786 92.50 63.35 20.13 28.99 21.53 7.16 17.46 33.66
27184 111.93 78.56 26.29 37.87 26.19 9.52 21.57 40.61 30582 132.43 94.98 33.28 47.93 31.13 12.25 25.98 47.92 33980 153.93 112.56 41.08 59.17 36.34 15.35 30.68 55.57
37378 176.38 131.24 49.71 71.59 41.80 18.82 35.67 63.53 40776 199.71 151.00 59.16 85.20 47.49 22.68 40.92 71.80 44174 223.90 171.79 69.43 99.99 53.42 26.91 46.44 80.34 45873 236.29 182.56 74.87 107.83 56.46 29.18 49.29 84.72 23786 48.97 30.35 11.09 16.83 29.89 15.51 4.44 12.27 24.60 27184 59.63 37.87 14.48 21.99 39.04 18.87 5.91 15.16 29.68 30582 70.94 46.03 18.33 27.83 49.41 22.44 7.60 18.26 35.02 33980 82.86 54.81 22.62 34.36 61.00 26.19 9.52 21.57 40.61
40776 108.41 74.14 32.58 49.47 87.84 34.23 14.07 28.76 52.47 44174 121.99 84.65 38.23 58.06 103.09 38.50 16.70 32.64 58.72 47572 136.08 95.71 44.34 67.34 119.56 42.92 19.56 36.70 65.16 50970 150.65 107.30 50.90 77.30 137.25 47.49 22.68 40.92 71.80 23786 81.48 49.88 11.09 16.83 29.89 15.51 4.44 12.27 24.60 27184 97.69 61.74 14.48 21.99 39.04 18.87 5.91 15.16 29.68 30582 114.63 74.52 18.33 27.83 49.41 22.44 7.60 18.26 35.02 33980 132.27 88.17 22.62 34.36 61.00 26.19 9.52 21.57 40.61
40776 169.45 117.97 32.58 49.47 87.84 34.23 14.07 28.76 52.47 44174 188.91 134.06 38.23 58.06 103.09 38.50 16.70 32.64 58.72 47572 208.92 150.90 44.34 67.34 119.56 42.92 19.56 36.70 65.16 50970 229.44 168.48 50.90 77.30 137.25 47.49 22.68 40.92 71.80
RETURN AIR OPENING
FILTERS
NOTES: *Includes 2" pleated filters. ** Power exhaust pressure drops are for sizing supply fan.
40
YORK INTERNATIONAL
Page 41
FORM 100.50-EG3 (802)
FILTERS ECONOMIZER ECONOMIZER
RIGID FILTER RACK, 30.5 cm 30.5 cm FRESH AIR MANUAL OR 0-100%
NO MEDIA RIGID, 65%* RIGID, 95%* OPENINGS 2-POSITION MODULATION
22.28 52.86 73.78 18.15 6.66 28.17 2.47
29.11 68.66 93.86 26.65 9.59 38.99 3.56
36.51 85.68 115.12 36.90 13.05 51.33 4.85
44.41 103.82 137.45 48.90 17.04 65.12 6.33
50.66 118.11 154.85 59.09 20.39 76.41 7.57
52.79 123.00 160.77 62.70 21.57 80.34 8.01
61.63 143.17 185.01 78.32 26.63 96.95 9.89
66.20 153.60 197.47 86.82 29.36 105.76 10.91
70.88 164.26 210.13 95.78 32.22 114.90 11.97
80.54 186.23 236.08 115.09 38.35 134.19 14.25
29.11 68.66 93.86 26.65 9.59 38.99 3.56
36.51 85.68 115.12 36.90 13.05 51.33 4.85
44.41 103.82 137.45 48.90 17.04 65.12 6.33
52.79 123.00 160.77 62.70 21.57 80.34 8.01
58.26 135.49 175.81 72.25 24.67 90.56 9.17
61.63 143.17 185.01 78.32 26.63 96.95 9.89
70.88 164.26 210.13 95.78 32.22 114.90 11.97
80.54 186.23 236.08 115.09 38.35 134.19 14.25
36.51 85.68 115.12 36.90 13.05 51.33 4.85
44.41 103.82 137.45 48.90 17.04 65.12 6.33
52.79 123.00 160.77 62.70 21.57 80.34 8.01
61.63 143.17 185.01 78.32 26.63 96.95 9.89
66.20 153.60 197.47 86.82 29.36 105.76 10.91
70.88 164.26 210.13 95.78 32.22 114.90 11.97
80.54 186.23 236.08 115.09 38.35 134.19 14.25
90.58 209.05 262.81 136.29 45.00 154.77 16.72
95.74 220.76 276.46 147.59 48.53 165.54 18.03
36.51 85.68 115.12 36.90 13.05 51.33 4.85
44.41 103.82 137.45 48.90 17.04 65.12 6.33
52.79 123.00 160.77 62.70 21.57 80.34 8.01
61.63 143.17 185.01 78.32 26.63 96.95 9.89
66.20 153.60 197.47 86.82 29.36 105.76 10.91
70.88 164.26 210.13 95.78 32.22 114.90 11.97
80.54 186.23 236.08 115.09 38.35 134.19 14.25
90.58 209.05 262.81 136.29 45.00 154.77 16.72
95.74 220.76 276.46 147.59 48.53 165.54 18.03
24.89 58.92 81.53 20.11 13.05 29.78 2.30
30.29 71.37 97.27 26.65 17.04 37.78 3.00
36.00 84.53 113.68 34.17 21.57 46.61 3.80
42.02 98.35 130.74 42.68 26.63 56.24 4.69
48.34 112.81 148.40 52.19 32.22 66.66 5.67
54.92 127.86 166.63 62.70 38.35 77.85 6.75
61.77 143.49 185.41 74.25 45.00 89.79 7.92
68.87 159.68 204.70 86.82 52.19 102.47 9.19
76.21 176.39 224.48 100.43 59.92 115.88 10.55
24.89 58.92 81.53 20.11 13.05 29.78 2.30
30.29 71.37 97.27 26.65 17.04 37.78 3.00
36.00 84.53 113.68 34.17 21.57 46.61 3.80
42.02 98.35 130.74 42.68 26.63 56.24 4.69
48.34 112.81 148.40 52.19 32.22 66.66 5.67
54.92 127.86 166.63 62.70 38.35 77.85 6.75
61.77 143.49 185.41 74.25 45.00 89.79 7.92
68.87 159.68 204.70 86.82 52.19 102.47 9.19
76.21 176.39 224.48 100.43 59.92 115.88 10.55
POWERED
EXHAUST
YORK INTERNATIONAL
41
Page 42
Component Static Pressure Drops (continued)
T ABLE 17 – COMPONENT STATIC PRESSURE DROPS
EVAPORATOR
SIZE
80 40776 103.24 76.08 32.58 49.47 87.84 34.23 14.07 28.76 52.47
85 40776 143.75 100.65 32.58 49.47 87.84 34.23 14.07 28.76 52.47
90
95
NOTES: *Includes 2" pleated filters. ** Power exhaust pressure drops are for sizing supply fan.
AIR FLOW COILS 50.1 cm 50.1 cm 50.1 cm 50.1 cm
m3/hr STD. AIR WET DRY BOTTOM FRONT SIDE THROWAW A Y CLEANABLE PLEATED CARBON
27184 56.67 39.61 14.48 21.99 39.04 18.87 5.91 15.16 29.68 30582 67.46 47.88 18.33 27.83 49.41 22.44 7.60 18.26 35.02 33980 78.84 56.73 22.62 34.36 61.00 26.19 9.52 21.57 40.61 37378 90.77 66.14 27.38 41.57 73.81 30.12 11.68 25.07 46.43
44174 116.21 86.54 38.23 58.06 103.09 38.50 16.70 32.64 58.72 47572 129.68 97.50 44.34 67.34 119.56 42.92 19.56 36.70 65.16 50970 143.61 108.95 50.90 77.30 137.25 47.49 22.68 40.92 71.80 54368 157.99 120.87 57.92 87.95 156.16 52.21 26.04 45.32 78.61 27184 79.18 51.99 14.48 21.99 39.04 18.87 5.91 15.16 29.68 30582 94.16 62.99 18.33 27.83 49.41 22.44 7.60 18.26 35.02 33980 109.94 74.78 22.62 34.36 61.00 26.19 9.52 21.57 40.61 37378 126.48 87.34 27.38 41.57 73.81 30.12 11.68 25.07 46.43
44174 161.71 114.67 38.23 58.06 103.09 38.50 16.70 32.64 58.72 47572 180.33 129.38 44.34 67.34 119.56 42.92 19.56 36.70 65.16 50970 199.59 144.78 50.90 77.30 137.25 47.49 22.68 40.92 71.80 54368 219.47 160.83 57.92 87.95 156.16 52.21 26.04 45.32 78.61 30582 85.67 56.81 14.31 27.83 39.84 17.17 5.14 13.69 27.11 33980 100.22 67.40 17.67 34.36 49.19 20.04 6.45 16.17 31.43 37378 115.49 78.68 21.38 41.57 59.52 23.05 7.90 18.80 35.94 40776 131.47 90.61 25.44 49.47 70.83 26.19 9.52 21.57 40.61 44174 148.10 103.18 29.86 58.06 83.13 29.46 11.30 24.47 45.45 47572 165.37 116.37 34.63 67.34 96.41 32.84 13.24 27.51 50.43 50970 183.26 130.16 39.75 77.30 110.67 36.34 15.35 30.68 55.57 54368 201.74 144.53 45.23 87.95 125.92 39.95 17.62 33.97 60.84 57766 220.80 159.48 51.06 99.29 142.15 43.67 20.07 37.39 66.25
61164 240.40 174.98 57.25 111.31 159.37 47.49 22.68 40.92 71.80 30582 113.26 71.03 14.31 27.83 39.84 17.17 5.14 13.69 27.11 33980 132.27 84.28 17.67 34.36 49.19 20.04 6.45 16.17 31.43 37378 152.20 98.37 21.38 41.57 59.52 23.05 7.90 18.80 35.94 40776 173.00 113.29 25.44 49.47 70.83 26.19 9.52 21.57 40.61 44174 194.64 129.01 29.86 58.06 83.13 29.46 11.30 24.47 45.45 47572 217.09 145.49 34.63 67.34 96.41 32.84 13.24 27.51 50.43 50970 240.30 162.73 39.75 77.30 110.67 36.34 15.35 30.68 55.57 54368 264.26 180.70 45.23 87.95 125.92 39.95 17.62 33.97 60.84 57766 288.94 199.38 51.06 99.29 142.15 43.67 20.07 37.39 66.25
61164 314.31 218.76 57.25 111.31 159.37 47.49 22.68 40.92 71.80
RETURN AIR OPENING
FILTERS
42
YORK INTERNATIONAL
Page 43
FORM 100.50-EG3 (802)
FILTERS ECONOMIZER ECONOMIZER
RIGID FILTER RACK, 30.5 cm 30.5 cm FRESH AIR MANUAL OR 0-100%
NO MEDIA RIGID, 65%* RIGID, 95%* OPENINGS 2-POSITION MODULATION
30.29 71.37 97.27 26.65 17.04 37.78 3.00
36.00 84.53 113.68 34.17 21.57 46.61 3.80
42.02 98.35 130.74 42.68 26.63 56.24 4.69
48.34 112.81 148.40 52.19 32.22 66.66 5.67
54.92 127.86 166.63 62.70 38.35 77.85 6.75
61.77 143.49 185.41 74.25 45.00 89.79 7.92
68.87 159.68 204.70 86.82 52.19 102.47 9.19
76.21 176.39 224.48 100.43 59.92 115.88 10.55
83.78 193.61 244.74 115.09 68.17 130.02 12.00
30.29 71.37 97.27 26.65 17.04 37.78 3.00
36.00 84.53 113.68 34.17 21.57 46.61 3.80
42.02 98.35 130.74 42.68 26.63 56.24 4.69
48.34 112.81 148.40 52.19 32.22 66.66 5.67
54.92 127.86 166.63 62.70 38.35 77.85 6.75
61.77 143.49 185.41 74.25 45.00 89.79 7.92
68.87 159.68 204.70 86.82 52.19 102.47 9.19
76.21 176.39 224.48 100.43 59.92 115.88 10.55
83.78 193.61 244.74 115.09 68.17 130.02 12.00
17.17 73.32 99.72 26.54 14.20 38.99 2.58
20.04 85.30 114.65 33.14 17.53 47.05 3.18
23.05 97.83 130.11 40.52 21.21 55.76 3.85
26.19 110.88 146.06 48.69 25.24 65.12 4.58
29.46 124.42 162.48 57.65 29.62 75.11 5.37
32.84 138.44 179.36 67.41 34.36 85.72 6.23
36.34 152.92 196.66 77.97 39.44 96.95 7.15
39.95 167.84 214.37 89.35 44.87 108.77 8.14
43.67 183.18 232.49 101.55 50.66 121.18 9.19
47.49 198.94 250.99 114.58 56.79 134.19 10.30
17.17 73.32 99.72 26.54 14.20 38.99 2.58
20.04 85.30 114.65 33.14 17.53 47.05 3.18
23.05 97.83 130.11 40.52 21.21 55.76 3.85
26.19 110.88 146.06 48.69 25.24 65.12 4.58
29.46 124.42 162.48 57.65 29.62 75.11 5.37
32.84 138.44 179.36 67.41 34.36 85.72 6.23
36.34 152.92 196.66 77.97 39.44 96.95 7.15
39.95 167.84 214.37 89.35 44.87 108.77 8.14
43.67 183.18 232.49 101.55 50.66 121.18 9.19
47.49 198.94 250.99 114.58 56.79 134.19 10.30
POWERED
EXHAUST**
YORK INTERNATIONAL
43
Page 44

Gas Heat Pressure Drops

T ABLE 18 – GAS HEAT PRESSURE DROPS
SIZE (mbh)
SIZE
50 29733 54.74 109.49
55
60 35679 64.70 129.40
65 35679 64.70 129.40
70 37378 54.74 109.49 164.23
AIR FLOW
m3/hr STD. AIR
16990 29.86 62.21 20388 37.33 74.65 23786 42.30 87.09 27184 49.77 99.54
30582 54.74 111.98 33980 62.21 124.42 37378 67.19 136.86 38228 69.68 139.35 20388 37.33 74.65 23786 42.30 87.09 27184 49.77 99.54 30582 54.74 111.98 32706 59.72 119.44 33980 62.21 124.42 37378 67.19 136.86 40776 74.65 149.30 23786 42.30 87.09 27184 49.77 99.54 30582 54.74 111.98 33980 62.21 124.42
37378 67.19 136.86 40776 74.65 149.30 44174 79.63 161.75 45873 84.61 166.72 23786 42.30 87.09 27184 49.77 99.54 30582 54.74 111.98 33980 62.21 124.42
37378 67.19 136.86 40776 74.65 149.30 44174 79.63 161.75 45873 84.61 166.72 27184 39.81 79.63 119.44 30582 44.79 89.58 134.37 33980 49.77 99.54 149.30
40776 59.72 119.44 179.16 44174 64.70 129.40 194.10 45873 67.19 134.37 201.56
375 750 1125
SIZE (mbh)
SIZE AIR FLOW
m3/hr STD. AIR
75 37378 54.74 109.49 164.23
80
85
90 47572 62.21 124.42 184.14
95
27184 39.81 79.63 119.44 30582 44.79 89.58 134.37 33980 49.77 99.54 149.30
40776 59.72 119.44 179.16 44174 64.70 129.40 194.10 45873 67.19 134.37 201.56 30582 44.79 89.58 134.37 33980 49.77 99.54 149.30 37378 54.74 109.49 164.23 40776 59.72 119.44 179.16 44174 64.70 129.40 194.10 47572 69.68 139.35 209.03 50970 74.65 149.30 223.96 54369 79.63 159.26 236.40 30582 44.79 89.58 134.37 33980 49.77 99.54 149.30 37378 54.74 109.49 164.23 40776 59.72 119.44 179.16 44174 64.70 129.40 194.10 47572 69.68 139.35 209.03 50970 74.65 149.30 223.96 54369 79.63 159.26 236.40 33980 44.79 87.09 131.89 37378 47.28 97.05 144.33 40776 52.26 104.51 159.26 44174 57.23 114.47 171.70
50970 67.19 131.89 199.07 53519 69.68 139.35 209.03 54369 69.68 141.84 211.51 57767 74.65 149.30 223.96 61165 79.63 159.26 236.40 33980 44.79 87.09 137.61 37378 47.28 97.05 144.33 40776 52.26 104.51 159.26 44174 57.23 114.47 171.70 47572 62.21 124.42 184.14 50970 67.19 131.89 199.07 53519 69.68 139.35 209.03 54369 69.68 141.84 211.51 57767 74.65 149.30 223.96 61165 79.63 159.26 236.40
375 750 1125
44
YORK INTERNATIONAL
Page 45
FORM 100.50-EG3 (802)
00566VIP
YORK INTERNATIONAL
45
Page 46

Electric Heat Pressure Drops

T ABLE 19 – ELECTRIC HEAT PRESSURE DROPS
SIZE (kW) 40 80 108 150 250
VOLT/PHASE/HZ 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50
SIZE
50
55
60 35679 15.45 22.47 22.47
65 35679 15.45 22.47 22.47
70 44174 28.93 28.93 56.04
AIR FLOW
m3/hr STD. AIR
16990 3.50 5.09 5.09 20388 5.04 7.34 7.34 23786 6.87 9.99 9.99 27184 8.97 13.04 13.04 29733 10.73 15.60 15.60 30582 11.35 16.51 16.51 33980 14.01 20.38 20.38 37378 16.95 24.66 24.66 38228 17.73 25.79 25.79 40776 20.18 29.35 29.35 20388 5.04 7.34 7.34 23786 6.87 9.99 9.99 27184 8.97 13.04 13.04 30582 11.35 16.51 16.51 32706 12.98 18.88 18.88 33980 14.01 20.38 20.38 37378 16.95 24.66 24.66 40776 20.18 29.35 29.35 23786 6.87 9.99 9.99 27184 8.97 13.04 13.04 30582 11.35 16.51 16.51 33980 14.01 20.38 20.38
37378 16.95 24.66 24.66 40776 20.18 29.35 29.35 44174 23.68 34.44 34.44 45873 25.53 37.14 37.14 23786 6.87 9.99 9.99 27184 8.97 13.04 13.04 30582 11.35 16.51 16.51 33980 14.01 20.38 20.38
37378 16.95 24.66 24.66 40776 20.18 29.35 29.35 44174 23.68 34.44 34.44 45873 25.53 37.14 37.14 27184 10.95 10.95 21.22 30582 13.86 13.86 26.86 33980 17.12 17.12 33.16 37378 20.71 20.71 40.12 40776 24.65 24.65 47.75
45873 31.19 31.19 60.44 47572 33.55 33.55 65.00 50970 38.51 38.51 74.61 47572 33.55 33.55 65.00 50970 38.51 38.51 74.61
46
YORK INTERNATIONAL
Page 47
TABLE 19 – ELECTRIC HEAT PRESSURE DROPS (CONT’D)
SIZE (kW) 40 80 108 150 250
VOLT/PHASE/HZ 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50
FORM 100.50-EG3 (802)
SIZE
75 40776 24.65 24.65 47.75
80 40776 24.65 24.65 47.75
85 40776 24.65 24.65 47.75
90
95
AIR FLOW
m3/hr STD. AIR
27184 10.95 10.95 21.22 30582 13.86 13.86 26.86 33980 17.12 17.12 33.16 37378 20.71 20.71 40.12
44174 28.93 28.93 56.04 45873 31.19 31.19 60.44 47572 33.55 33.55 65.00 50970 38.51 38.51 74.61 27184 10.95 10.95 21.22 30582 13.86 13.86 26.86 33980 17.12 17.12 33.16 37378 20.71 20.71 40.12
44174 28.93 28.93 56.04 47572 33.55 33.55 65.00 50970 38.51 38.51 74.61 54368 43.82 43.82 84.89 27184 10.95 10.95 21.22 30582 13.86 13.86 26.86 33980 17.12 17.12 33.16 37378 20.71 20.71 40.12
44174 28.93 28.93 56.04 47572 33.55 33.55 65.00 50970 38.51 38.51 74.61 54368 43.82 43.82 84.89 33980 13.19 13.19 25.55 25.55 37378 15.96 15.96 30.91 30.91 40776 18.99 18.99 36.79 36.79 44174 22.28 22.28 43.18 43.18 47572 25.85 25.85 50.07 50.07 50970 29.67 29.67 57.48 57.48 53519 32.71 32.71 63.38 63.38 54368 33.76 33.76 65.40 65.40 57766 38.11 38.11 73.83 73.83 61164 42.72 42.72 82.78 82.78 33980 13.19 13.19 25.55 25.55 37378 15.96 15.96 30.91 30.91 40776 18.99 18.99 36.79 36.79 44174 22.28 22.28 43.18 43.18 47572 25.85 25.85 50.07 50.07 50970 29.67 29.67 57.48 57.48 53519 32.71 32.71 63.38 63.38 54368 33.76 33.76 65.40 65.40 57766 38.11 38.11 73.83 73.83 61164 42.72 42.72 82.78 82.78
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Exhaust Fan Data

EXHAUST FAN MOTOR SIZING INSTRUCTIONS
In order to determine the proper exhaust fan motor size, add the return duct static pressure to the appropriate damper pressure drop value in Table 23 to get the total static pressure applied to the exhaust fan. Based on the exhaust fan air flow and total static pressure, deter­mine the brake horsepower and RPM of the exhaust fan.
TABLE 20 – 50 THROUGH 65 TON EXHAUST FAN DATA
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 62 124 187 249
STD. AIR kW RPM kW RPM kW RPM kW RPM
13592 1.2 498 1.6 598 1.9 675 2.3 744 20388 3.7 694 3.9 732 4.5 804 5.9 867 27184 8.4 906 8.8 930 9.2 957 9.6 996 33980 16.6 1141 17.7 1161
TABLE 20 – 50 THROUGH 65 TON EXHAUST FAN DATA (CONT’D)
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 311 373 435 478
STD. AIR kW RPM kW RPM kW RPM kW RPM
13592 2.6 810 3.0 873 3.4 933 3.9 992 20388 5.6 924 6.1 976 6.6 1025 7.2 1072 27184 1.4 1055 11.2 1104 12.0 1150 12.7 1196 33980
NOTE: * Grey areas indicate operation in motor service factor.
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TABLE 21 – 70 THROUGH 85 TON EXHAUST FAN DATA
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 62 124 187 249
STD. AIR kW RPM kW RPM kW RPM kW RPM
20388 1.5 432 2.0 517 2.4 583 2.8 641 27184 3.0 516 3.7 593 4.3 658 4.9 713 33980 5.5 610 6.2 672 7.1 733 7.9 788 40776 9.0 710 9.9 760 1.9 812 12.0 864
TABLE 21 – 70 THROUGH 85 TON EXHAUST FAN DA TA (CONT’D)
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 311 373 435 478
STD. AIR kW RPM kW RPM kW RPM kW RPM
20388 3.2 694 3.6 744 4.3 792 4.6 839 27184 5.5 762 6.0 807 6.5 850 7.6 890 33980 8.8 837 9.4 881 1.2 921 1.8 959 40776 13.0 912 14.0 956 14.9 997 15.7 1034
FORM 100.50-EG3 (802)
TABLE 22 – 90 THROUGH 95 TON EXHAUST FAN DATA
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 62 124 187 249
STD. AIR kW RPM kW RPM kW RPM kW RPM
23786 2.2 474 2.8 555 3.4 621 3.8 677 30582 4.2 563 5.0 633 5.7 696 6.4 751 37378 7.2 660 8.5 716 9.4 773 10.0 826 44174 11.2 761 12.2 807 13.3 855 14.4 904
TABLE 22 – 90 THROUGH 95 TON EXHAUST FAN DATA (CONT’D)
TOTAL STATIC PRESSURE (Pascals of water column)
m3/hr 311 373 435 478
STD. AIR kW RPM kW RPM kW RPM kW RPM
23786 4.3 728 4.8 776 5.3 821 5.8 865 30582 7.8 800 7.8 844 8.3 886 8.9 925 37378 1.9 875 11.7 919 12.5 959 13.3 997 44174 15.6 950 16.7 994 16.7 994 18.7 1072
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Component Static Pressure Drops

T ABLE 23 – COMPONENT STATIC PRESSURE DROPS (PASCALS OF
WATER COLUMN)
SIZE
50 27184 17.42 17.42
55 27184 17.42 17.42
60
65
70
AIR FLOW
m3/hr STD. AIR
13592 4.98 4.98
16990 7.47 7.47
20388 9.95 9.95
23786 12.44 12.44
30582 19.91 19.91
33980 24.88 24.88
37378 29.86 29.86
40776 37.33 37.33
135921 4.98 4.98
16990 7.47 7.47
20388 9.95 9.95
23786 12.44 12.44
30582 19.91 19.91
33980 24.88 24.88
37378 29.86 29.86
40776 37.33 37.33
16990 7.47 7.47
20388 9.95 9.95
23786 12.44 12.44
27184 17.42 17.42
30582 19.91 19.91
33980 24.88 24.88
37378 29.86 29.86
40776 37.33 37.33
16990 7.47 7.47
20388 9.95 9.95
23786 12.44 12.44
27184 17.42 17.42
30582 19.91 19.91
33980 24.88 24.88
37378 29.86 29.86
40776 37.33 37.33
20388 24.88 7.47
23786 34.84 9.95
27184 44.79 12.44
30582 59.72 17.42
33980 74.65 19.91
37378 92.07 24.88
40776 109.49 29.86
44174 131.89 37.33
2-POSITION OR VFD
POWERED EXHAUST
(BAROMETRIC DAMPER)
MODULA TING EXHAUST
(CONTROL DAMPER)
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T ABLE 23 – COMPONENT STATIC PRESSURE DROPS (PASCALS OF
WATER COLUMN) (CONT’D)
SIZE
m3/hr STD. AIR
75
80
85
90
95
AIR FLOW
20388 24.88 24.88 23786 34.84 34.84 27184 44.79 44.79 30582 59.72 59.72 33980 74.65 74.65 37378 92.07 92.07 40776 109.49 109.49 44174 131.89 131.89 20388 24.88 24.88 23786 34.84 34.84 27184 44.79 44.79 30582 59.72 59.72 33980 74.65 74.65 37378 92.07 92.07 40776 109.49 109.49 44174 131.89 131.89 20388 24.88 24.88 23786 34.84 34.84 27184 44.79 44.79 30582 59.72 59.72 33980 74.65 74.65 37378 92.07 92.07 40776 109.49 109.49 44174 131.89 131.89 27184 29.86 29.86 30582 37.33 37.33 33980 47.28 47.28 37378 59.72 59.72 40776 72.16 72.16 44174 87.09 87.09 27184 29.86 29.86 30582 37.33 37.33 33980 47.28 47.28 37378 59.72 59.72 40776 72.16 72.16 44174 87.09 87.09
2-POSITION OR VFD
POWERED EXHAUST
(BAROMETRIC DAMPER)
MODULA TING EXHAUST
(CONTROL DAMPER)
FORM 100.50-EG3 (802)
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Electrical Data

ELECTRICAL SERVICE SIZING
In order to use the electrical service required for the cool­ing only eco2 rooftop, use the appropriate calculations listed below from U.L. 1995. Based on the configuration of the rooftop, the calculations will yield different MCA (minimum circuit ampacity), and MOP (maximum overcurrent protection).
Using the following load definitions and calculations, determine the correct electrical sizing for your unit. All concurrent load conditions must be considered in the calculations, and you must use the highest value for any combination of loads.
Load Definitions:
LOAD1 is the current of the largest motor – com­pressor or fan motor.
LOAD2 is the sum of the remaining motor currents that may run concurrently with LOAD1.

T ABLE 24 – COMPRESSOR DATA

Compressor Nominal Voltage Model Quantity
per Unit RLA LRA
50 4 SZ160 24.2 135 55 4 SZ160 24.2 135 60 4 SZ185 27.9 175 65 4 SZ185 27.9 175
70
75
80 6 SZ160 24.2 135 85 6 SZ160 24.2 135
90
95
4 SZ125 17.9 120 2 SZ160 24.2 135 4 SZ125 17.9 120 2 SZ160 24.2 135
2 SZ160 24.2 135 4 SZ185 27.9 175 2 SZ160 24.2 135 4 SZ185 27.9 175
Model
400/3/50
LOAD3 is the current of the electric heaters – zero for cooling only units.
LOAD4 is the sum of any remaining current s greater than or equal to 1.0 amp.
Use the following calculations to determine MCA and MOP for units supplied with a single-point power connection:
MCA = (1.25 x LOAD1) + LOAD2 + LOAD3 + LOAD4
MOP = (2.25 x LOAD1) + LOAD2 + LOAD3 + LOAD4
If the MOP does not equal a standard current rating of an overcurrent protective device, then the marked maxi­mum rating is to be the next lower standard rating. How­ever, if the device selected for MOP is less than the MCA, then select the lowest standard maximum fuse size greater than or equal to the MCA.
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FORM 100.50-EG3 (802)
T ABLE 25 – SUPPLY AND EXHAUST FAN MOTOR
(ODP OR TEFC)
NOMINAL VOLTAGE
MOTOR
HP
5 8.5
7.5 12.7 10 15.6 15 25.0 20 32.0 25 42.0 30 46.0 40 62.0 50 74.0 60 91.0
400/3/50
FLA

T ABLE 27 – CONTROL TRANSFORMER

NOMINAL VOL TAGE
DESCRIPTION 400/3/50
AMPS
YPAL050-065 1.9 YPAL070-095 1.9

T ABLE 26 – CONDENSER FAN MOTORS / TOTAL

NOMINAL VOLTAGE
NOMINAL
TONS
50 14.4 55 14.4 60 14.4 65 14.4 70 21.6 75 21.6 80 21.6 85 21.6 90 21.6 95 21.6
400/3/50
FLA

T ABLE 28 – ELECTRIC HEAT

NOM. VOLTAGE
kW 400/3/50
AMPS
40 56
80 111 108 150 150 209 200 279 250 Not Available
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Controls

CONTROL SEQUENCES COMMON TO ALL UNITS
GENERAL
The control system for the YORK eco² Packaged Roof­top Unit is fully self-contained and based around an OptiLogic maintenance, and operation, the OptiLogic™ rooftop unit controller is equipped with a user interface that is based around a 4 line x 20 character backlit LCD display . The LCD displays plain language text in a menu-driven for­mat to facilitate use. In addition to the display, the OptiLogic™ user interface is also equipped with an LED indicator light, which will warn of any abnormal opera­tion of the equipment or communication failures.
For the maximum in system flexibility, the YORK eco² Packaged Rooftop Unit can be operated by either a typi­cal 7-wire thermostat (2 cool/2 heat), a space tempera­ture sensor, or stand-alone (VAV only). Note, a field wiring terminal block is provided to facilitate unit setup and installation.
In lieu of the hard-wired control options, the OptiLogic rooftop unit controller can be connected to and oper­ated by a Building Automation System (BAS). If required, the OptiLogic™ rooftop unit controller can be equipped with an optional BACNet IP communication card, which allows communication, via Ethernet, to a BACNet IP based BAS.
rooftop unit controller. To aid in unit setup,
Note a unit operated from a space sensor can be equipped to temporarily override an unoccupied mode of operation. This Unoccupied Override feature is fully configurable via the OptiLogic™ user interface.
GAS HEA TING OPERA TION
Units supplied with gas heat can be equipped one, two, or three independently operated burner modules. Each module is fully self-contained furnace with all neces­sary ignition controls, safeties, and gas valves. The OptiLogic rooftop unit controller determines how the furnaces are started and stopped and prevents furnace operation if the Supply Fan airflow is not sufficient or if the Supply Air Temperature is excessively high.
If a furnace module receives a signal to start from the OptiLogic controller, the ignition control engages the furnace inducer (draft) fan for a 30-second pre-purge cycle. At the end of the 30-second pre-purge, the igni­tion control will stop the furnace and allows the inducer
fan to operate for a 30-second post-purge. Each fur­nace contains a direct spark ignition system and in­cluded safeties for flame and inducer fan verification, high temperature and flame roll-out.
MORNING WARM-UP
UNOCCUPIED / OCCUPIED SWITCHING
Depending on application, the unit can be indexed be­tween unoccupied and occupied modes of operation by one of three methods, hard-wired input, internal time clock, or BAS. A contact-closure input is provided for hard-wiring to an external indexing device such as a central time clock, thermostat with built in scheduling, or a manual switch. The unit controller is also equipped with a built in 7-day time clock which can be used, in lieu of the contact closure input, to switch the unit be­tween Unoccupied and Occupied modes of operation. The internal time clock is fully configurable via the user interface and includes Holiday scheduling. In addition to the hard-wired input or the internal time clock, the unit can also be indexed between unoccupied and oc­cupied modes of operation via a BAS command.
Morning Warm-Up can be initialized by BAS or by the OptiLogic controller if the Internal Scheduling is used. If the Internal Scheduling is used, the Morning Warm­Up start time is calculated through an adaptive algo­rithm, which determines the optimum start time.
When Morning Warm-Up is required, the OptiLogic controller starts the Supply Fan and qualifies the Re­turn Air Temperature for 5 minutes. The internal heat source (Gas, HW/Steam, or Electric) is controlled to maintain the Return Air Temperature to the Morning Warm-Up Setpoint, Morning Warm-Up ends when oc­cupancy occurs (BAS, Internal Scheduling, or contact closure), or when the Maximum Morning Warm-Up Time has expired.
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FORM 100.50-EG3 (802)
ELECTRIC HEA TING OPERATION
For units equipped with electric heaters, the unit can control up to six stages of electric heat which are staged on based on heating demand calculates by the OptiLogic controller.
ECONOMIZER OPERA TION
The unit can be equipped with one of three types of optional economizers, dry bulb, single enthalpy , or com­parative enthalpy . When the unit controller determines that Outside Air is suitable for economizing, the unit controller will control the outside air damper(s) open to provide economizer cooling. If economizer cooling alone is insufficient for the cooling load, the unit controller shall stage up compressors, one at a time, to meet demand.
The control logic for the three types of economizers is as follows:
Dry Bulb Economizer
The dry bulb economizer is the default economizer control scheme. With the dry bulb economizer, the unit controller monitors the Outside Air temperature only and compares it to a reference temperature set­ting. Outside Air is deemed suit able for economizing when the Outside Air temperature is determined to be less than the reference temperature setting. This method of economizing is effective, but is prone to some change-over inefficiencies due to the fact that this method is based on sensible temperatures only and does not take Outside Air moisture content into consideration.
Single Enthalpy Economizer
With the optional single enthalpy economizer, the unit controller monitors the Outside Air enthalpy in addition to the Outside Air temperature and compares it to a reference enthalpy setting and a reference tempera­ture setting. Outside Air is deemed suitable for econo­mizing when the Outside Air enthalpy is determined to be less than the reference enthalpy setting and the Outside Air temperature is less than the reference tem­perature setting. This method of economizing allows the reference temperature setting to be set higher than the DB Economizer and is consequently a more effi­cient packaged rooftop economizer .
Comparative (Dual) Enthalpy Economizer
With the optional comparative enthalpy economizer, the unit controller monitors and compares the Outside Air and Return Air enthalpies in addition to comp aring the Outside Air temperature to the reference temperature setting. Outside Air is deemed suitable for economiz­ing when the Outside Air enthalpy is determined to be less than the Return Air enthalpy and the Outside Air temperature is less than the reference temperature setting. This method of economizing is the most accu­rate and provides the highest degree of energy effi­ciency for a packaged rooftop economizer.
VENTILA TION CONTROL SEQUENCES
Minimum OA Damper Position (CV Unit s)
When the unit goes into the Occupied mode of opera­tion, the unit controller shall open the Outside Air Damper to a fixed minimum position. The damper shall remain at this position as long as the unit is in the occupied mode, and the economizer is not suitable for cooling.
Minimum OA Damper Position (VA V Unit s)
With V ariable Air V olume units, there are two Minimum OA Damper Positions, one when the unit is at full speed and the second when the unit is at approximately half speed. These two points allow the control to linearly reset the position of the OA damper in response to fan speed.
When the unit goes into the Occupied mode of opera­tion, the unit controller shall monitor the speed of the supply fan and open the Outside Air damper to a calcu­lated minimum position based on the fan speed. This minimum position shall vary as the speed of the fan changes. The damper shall remain at this calculated position as long as the unit is in the occupied mode, and the economizer is not suitable for cooling.
Air Measurement Stations
When the unit is equipped with an air measurement station, the unit controller shall control the Outside Air damper to a measured flow rate through the Air Mea­surement St ation.
When the unit goes into the Occupied mode of opera­tion, the unit controller shall control the Outside Air damper to maintain the Minimum AirFlow Setpoint
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Controls (continued)
through the Air Measurement S tation. The unit control­ler shall control the Outside Air damper to this flow rate as long as the unit is in the Occupied mode, and the economizer is not suitable for cooling.
Demand Ventilation
If an optional CO
sensor is connected to the unit, the
2
unit controller can reset the minimum OA damper position(s) or minimum flow rate based on demand.
The unit controller shall monitor the CO2 level within the building. If the CO2 level rises above the CO2 setpoint, the controller will temporarily increase the Minimum OA Damper Position or Minimum OA flow rate to increase ventilation. If the CO2 level drops below the CO2 setpoint, the controller will decrease the Minimum OA Damper Position or Minimum OA flow rate to decrease ventilation.
Demand Ventilation shall remain active as long as the unit is in the Occupied mode of operation.
EXHAUST CONTROL SEQUENCES
Barometric
The optional barometric exhaust system consists of a lightweight barometric relief damper installed on the end of the unit in the Return Air section. As more outside air is introduced into the controlled zone due to Econo­mizer and Ventilation control sequences, the pressure inside the building rises. This increase in building pres­sure forces the barometric relief damper open to allow exhaust air to escape. Because this type of exhaust system is not powered, it is limited to small amounts of exhaust.
Powered Fixed Volume Exhaust Based on Outside Air Damper Position
This optional fixed volume powered exhaust system consists of a fixed speed fan that is controlled ON and OFF based on the position of the Outside Air Damper. During operation, when the Outside Air Damper opens to a selected turn-on point, the Exhaust Fan is cycled ON. The fan remains on as long as the Outside Air damper is above a selected turn-off point. If the Out­side Air Damper closes to the selected turn-off point, the Exhaust Fan is cycled OFF. The turn-on and turn­off points are user selectable from the OptiLogic™ User Interface panel.
Powered Fixed Volume Exhaust Based on Building Pressure
The optional fixed volume powered exhaust system consists of a fixed speed fan that is controlled ON and
OFF based on the pressure inside the building. During operation, the pressure within the building in monitored
by the OptiLogic
controller. If the pressure rises to or above a selected turn-on pressure, the Exhaust Fan is cycled ON. The fan shall remain on as long as the pres­sure within the building remains above a selected turn­off pressure. If the building pressure falls to or below the selected turn-off pressure, the Exhaust Fan is cycled OFF. The turn-on and turn-off pressure setpoints are user selectable from the OptiLogic
User Interface.
Powered Variable Volume Exhaust-Discharge Damper Controlled
This optional variable volume powered exhaust system consists of a fixed speed fan configured with a propor­tionally controlled discharge damper. The OptiLogic controller monitors the pressure inside the building and controls the Exhaust Damper and the Exhaust Fan. If the Building Pressure rises, the Exhaust Damper is pro­portionally controlled open and the Exhaust Fan is con­trolled ON. If the Building Pressure falls, the Exhaust Damper is proportionally controlled closed and the Ex­haust Fan is controlled OFF. The position of the Ex­haust Damper in which the Exhaust Fan is controlled ON and OFF as well as the Building Pressure setpoint is user selectable from the OptiLogic™ User Interface.
Powered Variable Volume Exhaust-VFD Controlled
This optional variable volume powered exhaust system consist of an Exhaust Fan driven by a Variable Fre­quency Drive (VFD), which is controlled by the OptiLogic™ controller. The OptiLogic™ controller moni­tors the pressure within the building. As the pressure rises, the VFD is controlled to increase Exhaust Fan speed. As the pressure falls, the VFD is controlled to decrease Exhaust Fan speed. The Building Pressure Setpoint is user selectable from the OptiLogic™ User Interface. On/Off control is maintained the same as Exhaust-Discharge Damper control stated above.
LOW AMBIENT OPERATION
The OptiLogic™ controller continuously monitors the outside air temperature to determine if mechanical cool­ing should be allowed. As a safety, if the Outside Air temperature falls to or below the Low Ambient Lockout temperature, mechanical cooling is prevented from operating. For units with economizers, the Low Ambi­ent Lockout temperature is typically low enough that mechanical cooling will rarely be required. However, for some applications mechanical cooling is required when the Outside Air temperature is lower than the Low Ambient Lockout temperature.
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FORM 100.50-EG3 (802)
For these applications, the unit must be equipped with optional Low Ambient controls. For optional Low Ambi­ent operation, the OptiLogic™ controller monitors the refrigeration system discharge pressure and controls the speed of the condenser fans. If the discharge pres­sure falls, the speeds of the condenser fans are re­duced to maintain acceptable condensing pressures in the refrigeration system. With the optional Low Ambi­ent controls, mechanical cooling is allowed down to Outside Air temperatures of -17.7°C.
SMOKE PURGE SEQUENCES
General
As a convenience, for when buildings catch fire or the building is inundated with smoke or fumes from manu­facturing processes, etc., the OptiLogic
control sys­tem provides one of five ventilation override control sequences for building purge. The five selectable purge sequences are, Shutdown, Pressurization, Exhaust, Purge and Purge with duct pressure control. Note, when any of the purge sequences are activated, cooling and heating modes are disabled. A contact closure input is provided which indexes the OptiLogic™ controller into the selected purge sequence.
Shutdown
When this purge sequence is selected and activated, the supply and exhaust fans are controlled OFF and the Outside Air damper is overridden closed. This idle state is maintained until the purge input is deactivated and the unit returns to normal operation.
Pressurization
When this purge sequence is selected and activated, the exhaust fan is controlled OFF and the Supply Fan is controlled ON. The Outside Air damper is opened full and the Return Air Damper is closed full. If the unit is a VAV unit, the VAV boxes are also driven full open to prevent duct over-pressurization. This mode is main­tained until the smoke purge input is deactivated and the unit returns to normal operation.
Purge
When this purge sequence is selected and activated, the Supply Fan is controlled ON and the Exhaust Fan is controlled ON. The Outside Air damper is opened full and the Return Air damper is closed full. If the unit is a VAV unit, the VAV boxes are also driven full open to prevent duct over-pressurization. This mode is main­tained until the smoke purge input is deactivated and the unit returns to normal operation.
Purge With Duct Pressure Control (VAV Only)
When this purge sequence is selected and activated, the Supply Fan is cycled ON and controlled to maintain the duct static pressure setpoint. The Exhaust Fan is also controlled ON (Exhaust Damper driven full open) and the Outside Air Damper is driven full open. This mode is maintained until the smoke purge input is de­activated and the unit returns to normal operation.
VAV SPECIFIC SEQUENCES
SUPPL Y F AN OPERATION
For V A V units, the supply fan is controlled ON and OFF based on the occupancy state or the G input from a Thermostat (Unit must be configured for Thermostat operation to respond to the G input). When the unit goes into the Occupied mode of operation (or “G” is called) the Supply Fan will be controlled ON. The OptiLogic™ controller will monitor the static pressure within the supply duct system and control the speed of the supply fan to maintain a specified Duct St atic Pres­sure setpoint. A V ariable Frequency Drive (VFD) is used on all VAV units to vary the speed of the supply fan. Note, the use of a VFD in lieu of inlet guide vanes pro­vides for higher energy efficiency for the unit by elimi­nating the losses (air pressure drop) typical of inlet guide vane systems.
COOLING OPERA TION
Thermostat Control
Exhaust
When this purge sequence is selected and activated, the Supply Fan is controlled OFF and the Exhaust Fan is controlled ON (Exhaust Damper driven full open and the outside air damper is closed). This mode is main­tained until the smoke purge input is deactivated and the unit returns to normal operation.
YORK INTERNATIONAL
When a VAV unit is configured for thermostat opera­tion, the OptiLogic™ controller will command the Sup­ply Fan to start when the unit goes into the Occupied mode or a thermostat “G” signal is received by the con­trol. With no thermostat calls for cooling, the unit shall remain idle with the Supply Fan operating as required.
When a Cooling Stage 1 call (“Y1”) is received, and the unit is equipped with an economizer, the OptiLogic controller will check the Outside Air conditions to deter-
57
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Controls (continued)
mine if conditions are suitable for economizing and modulate the outside air damper and/or stage up com­pressors as required to maintain the VAV High Supply Air Temperature Setpoint. This setpoint is user select­able at the OptiLogic
User Interface. The OptiLogic controller will control to this setpoint as long as Cooling St age 1 (“Y1”) remains active.
When a Cooling Stage 2 call (“Y2”) is received, and the unit is equipped with an economizer, the OptiLogic controller will check the Outside Air conditions to deter­mine if conditions are suitable for economizing and modulate the outside air damper and/or stage up com­pressors as required to maintain the VAV Low Supply Air Temperature Setpoint. This setpoint is user select­able at the OptiLogic™ User Interface. The OptiLogic controller will control to this setpoint as long as Cooling St age 2 (“Y2”) remains active.
The V AV High SAT Setpoint is always greater than the V AV Low SAT Setpoint and because of this essentially makes this control sequence a Supply Air T emperature Reset algorithm based on Zone Temperature or Out­side Air.
Zone Sensor Control
When a V A V unit is configured for Zone Sensor opera­tion, the OptiLogic™ controller will monitor a reference Zone Temperature and command the Supply Fan to start when the unit goes into the Occupied mode.
If the zone temperature is above the VAV Setpoint for SA T Reset, the OptiLogic™ controller will modulate the outside air damper (Economizer available and condi­tions suitable) and/or stage compressors up and down, as required, to maintain the V AV High Supply Air Tem­perature Setpoint.
In Stand-Alone Mode, the OptiLogic
Controller will monitor only the Occupied/Unoccupied state. When the unit is commanded into the Occupied Mode of opera­tion, the OptiLogic™ Controller will start the Supply Fan.
If the unit is equipped with an Economizer, the Con­troller will check to see if Outside Air conditions are suitable for Economizing. The controller will then use Outside Air (when available and suit able) and/or stage compressors up and down, as required, to maintain
the V AV Low SAT Setpoint.
Supply Air Tempering
Supply Air Tempering is a continuation of the a VAV cooling operation when the outside air temperature is
below the supply air temperature setpoint where heat­ing is used to maintain economizer operation. This func­tion will use small increments of heat to maintain the Supply Air Temperature when the economizer damper is at minimum position. If the unit is equipped with stepped heat (electric or gas), the heat will be duty cycled. A maximum of six cycles per hour is permitted for the heating stages.
HEA TING OPERA TION
V AV Occupied Heating
When VAV Occupied Heating is enabled, full heating will energize when either the thermostat W1 or W2 sig­nal is received or the space temperature falls below the V AV Setpoint for SA T Reset by more than -16.6°C. If the return air temperature falls below the return air temperature setpoint for occupied heating, full heat ca­pacity will be energized.
CV SPECIFIC SEQUENCES
If the zone temperature is below or falls below the VAV Setpoint for SAT Reset, the OptiLogic™ controller will modulate the Outside Air Damper (Economizer avail­able and conditions suitable) and/or stage compres­sors up and down, as required, to maintain the VAV High Supply Air Temperature Setpoint.
As with thermostat operation, this sequence is also a Supply Air T emperature Reset algorithm based on Zone Temperature.
Stand-Alone Control
If the unit is not configured for Thermostat or Zone Sen­sor operation, the unit will operate in Stand-Alone Mode.
58
COOLING OPERA TION
Thermostat Control
If a 7-wire thermostat (2 Cool/2 Heat) controls the unit, all zone temperature setpoint control is maintained at the thermostat. With this operation, the unit remains idle until it receives a stage call from the thermostat. If “G” is called from the thermostat, the Supply Fan will start. V entilation functions (if equipped) will be permit­ted to run with an occupied signal. Economizer func­tions will operate with a “G” call and a call for cooling.
YORK INTERNATIONAL
Page 59
FORM 100.50-EG3 (802)
Stage 1 (“Y1”) Call
If Y1 is called and the unit is equipped with an economizer , the control will check to see if the Outside Air is suitable for economizing. If conditions are suitable for economizing, the control will control the economizer and stage up compres­sors, as required, to maintain the economizer first-stage setpoint. If conditions are not suitable for economizing or not equipped with an economizer, the control will st age up 50% of the compressors. This shall be maintained until Stage 1 is deactivated or S t age 2 is called.
Stage 2 (“Y2”) Call
If Y2 is called and the unit is equipped with an econo­mizer, the control will check to see if the Outside Air is suitable for economizing. If conditions are suitable for economizing, the control will control the economizer and stage up compressors, as required, to maintain the econo­mizer second-stage setpoint. If conditions are not suit­able for economizing or not equipped with an economizer, the control will stage up 100% of the compressors. This shall be maintained until St age 2 is deactivated.
Zone Sensor Control
If a zone sensor controls the unit, the OptiLogic
con­troller shall maintain the zone temperature setpoint. This setpoint is user selectable at the OptiLogic™ User Interface.
HEATING OPERATION
Thermostat Control
If a 7-wire thermostat (2 Cool/2 Heat) controls the unit, all zone temperature setpoint control is maintained at the thermostat. With this operation, the unit remains idle until it receives a stage call from the thermostat. If “G” is called from the thermostat, the Supply Fan will start. Ventilation functions (if equipped) will be permit­ted to run with an occupied signal.
Stage 1 (“W1”) Call
If W1 is called and the unit is equipped with an econo­mizer, the economizer will go to minimum position with an occupied signal or close with an unoccupied signal. and the control will stage up 50% of the heating steps. This shall remain active until Stage 1 call is deactivated or a Stage 2 call is activated.
Stage 2 (“W2”) Call
If W2 is called and the unit is equipped with an econo­mizer, the economizer will go to minimum position with an occupied signal or close with an unoccupied signal, and the control will stage up 100% of the heating steps. This shall remain active until Stage 2 call is deactivated.
Zone Sensor Control
When a zone sensor is used for control, the OptiLogic unit controller will monitor the temperature within the space and control the unit accordingly. A closed-loop staging algorithm is used to stage compressors up and down as required to maintain the desired zone tem­perature setpoint. If the unit is equipped with an econo­mizer, Outside Air conditions are continuously monitored by the control to determine if conditions are suitable for economizing. If conditions are suitable for economiz­ing, the OptiLogic™ controller will modulate the Outside Air damper in addition to staging compressors up and down to maintain the zone temperature setpoint.
If a zone sensor controls the unit, the OptiLogic™ con­troller shall maintain all zone temperature setpoints. These setpoints are user selectable at the OptiLogic
User Interface. When a zone sensor is used for control, the OptiLogic
unit controller will monitor the temperature within the space and control the unit accordingly. A closed-loop staging algorithm is used to stage heating steps up and down as required to maintain the desired zone tem­perature setpoint. If the unit is equipped with an econo­mizer, Outside Air conditions are continuously monitored by the control to determine if conditions are suitable for economizing. If conditions are suitable for economiz­ing, the OptiLogic™ controller will modulate the Outside Air damper in addition to staging heating steps up and down to maintain the zone temperature setpoint.
YORK INTERNATIONAL
59
Page 60

Power Wiring

e
y
G
d
3
2
1
ck
e
3
x
SINGLE-POINT POWER SUPPLY WIRING
Electrical / Controls Bo
ower Sid
ontrol Sid
ND
L
Wiring Terminal Blo
LD06414
Line
Field Power
uppl
NOTES:
1. All field wiring must be provided through a field-supplied fused disconnect switch to the unit terminals (or optional molded disconnect switch).
2. All electrical wiring must be made in accordance with all N.E.C. and/or local code requirements.
3. Minimum Circuit Ampacity (MCA) is based on U.L. Standard 1995, Section 36.14 (N.E.C. Section 440.34).
4. Maximum Dual Element Fuse size is based on U.L. Standard 1995, Section 36.15 (N.E.C. Section 440.22)
5. Use copper conductors only.
6. On units with an optional disconnect switch, the supplied disconnect switch is a “Disconnecting Means” as defined in the N.E.C. Section 100, and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting. This disconnect switch is not intended to be a Load Break Device.

FIG. 1 – SINGLE-POINT POWER SUPPLY WIRING

Line Line
Earth
roun
60
YORK INTERNATIONAL
Page 61
SINGLE-POINT POWER SUPPLY WIRING
e
y
G
d
3
2
1
ck
e
3
x
ded
sc
ect
S
h
WITH NON-FUSED DISCONNECT
Electrical / Controls Bo
FORM 100.50-EG3 (802)
Power Sid
Mol Case Di
onn
witc
ontrol Sid
ND
L
Wiring Terminal Blo
LD06415
Line
Field Power Suppl
NOTES:
1. All field wiring must be provided through a field-supplied fused disconnect switch to the unit terminals (or optional molded disconnect switch).
2. All electrical wiring must be made in accordance with all N.E.C. and/or local code requirements.
3. Minimum Circuit Ampacity (MCA) is based on U.L. Standard 1995, Section 36.14 (N.E.C. Section 440.34).
4. Maximum Dual Element Fuse size is based on U.L. Standard 1995, Section 36.15 (N.E.C. Section 440.22)
5. Use copper conductors only.
6. On units with an optional disconnect switch, the supplied disconnect switch is a “Disconnecting Means” as defined in the N.E.C. Section 100, and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting. This disconnect switch is not intended to be a Load Break Device.
Line Line
Earth
roun

FIG. 2 – SINGLE-POINT POWER SUPPLY WIRING WITH NON-FUSED DISCONNECT

YORK INTERNATIONAL
61
Page 62
2
y
G
d
G
d
3
2
1
e
ck
3
2
1
e
3
3
x
Power Wiring (continued)
DUAL-POINT POWER SUPPLY WIRING
Electrical / Controls Bo
Field Power Supply #
Field Power Suppl
#1
Line Line Line
Earth
roun
Line Line Line
Earth
roun
Power Sid
TB
L
ND
TB
ontrol Sid
ND
L
Wiring Terminal Blo
LD06416
NOTES:
1. All field wiring must be provided through a field-supplied fused disconnect switch to the unit terminals (or optional molded disconnect switch).
2. All electrical wiring must be made in accordance with all N.E.C. and/or local code requirements.
3. Minimum Circuit Ampacity (MCA) is based on U.L. Standard 1995, Section 36.14 (N.E.C. Section 440.34).
4. Maximum Dual Element Fuse size is based on U.L. Standard 1995, Section 36.15 (N.E.C. Section 440.22)
5. Use copper conductors only.
6. On units with an optional disconnect switch, the supplied disconnect switch is a “Disconnecting Means” as defined in the N.E.C. Section 100, and is intended for isolating the unit from the available power supply to perform maintenance and troubleshooting. This disconnect switch is not intended to be a Load Break Device.

FIG. 3 – DUAL-POINT POWER SUPPLY WIRING

62
YORK INTERNATIONAL
Page 63
e
e
e
Closed = Smoke Purge
C
n
Open = Unoccupied
Closed = Occupied
gnal
cause equipment damage.
power source external of the unit may
sourced from the unit. Use of another
t
g
t
t
t
.
command the VAV boxes
output shall be used to
y
C
n
l
Op
l
er
C
n
t
Sensor
C
n
l
CO
l
.
.
.
:
C
n
l
r
at
)
)
)
)
COMMON
r
Nickel
Q
3
5
9
3
5
0
)
)

Field Control Wiring

Wiring Notes
1. Wiring shown indicates typical wiring.
2. All wiring is Class 2, low voltage
3. Maximum power available from the 24 VAC terminal is 40VA
4. Use shielded wire where shown
FORM 100.50-EG3 (802)
M
+
A+
(24 VAC)
A
1
1
D
18192
MK
M
7 Wire Thermost
Y1 (Cool Stage 1
Y2 (Cool Stage 2 W1 (Heat Stage 1 W2 (Heat Stage 2
Space Senso
1K
RTD Senso
1.5K Adjust
Potentiomet
0-5V Outpu
Note, 24VAC switch voltage must be
Occupied /
Unoccupied Inpu
Shutdown Inpu
R (24VAC
G (Fan
Signa
ommo
Si
ommo
Signa
ommo
* Use Shielded Wir
* Use Shielded Wir
* Use Shielded Wir
losed = Shutdow
Open = Norma
HIELD
HIELD

FIG. 4 – FIELD CONTROL WIRING

YORK INTERNATIONAL
Smoke Pur
VAV Heat
Relay Outpu
e Inpu
24 VAC Signa
ommo
Note: VAV Heat Rela
to open full
en = Norma
LD06804
63
Page 64

General Arrangement Drawing – 50-65 Ton Models

BOTTOM SUPPLY / BOTTOM RETURN
T
U
R
AA
V
H
E
D
B
C
A
REAR
F
N
M
TOP VIEW
3.175 FPT
P
G
J
L
LEFT SIDE VIEW
COUPLING DRAIN CONNECTION
K
CC
DD
BB
S
W
FRONT
Y
LD07880
TABLE 29 – BOTTOM SUPPLY / BOTTOM RETURN (ALL DIMENSIONS ARE IN CM)
MODEL A B C D E F G H J K L M N
50-65 350.04 58.1 241.61 49.69 91.44 24.61 485.14 209.87 600.7 973.30 873.76 369.89 270.83
MODEL P R S T U V W Y AA BB CC DD
50-65 6.03 124.46 72.39 378.46 179.38 11.75 233.68 3.97 210.18 11.75 90.33 11.75
NOTES:
1. Standard configuration.
2. Center of gravity information is based on a base cooling only unit equipped with power exhaust and economizer options.
FIG. 5 – GENERAL ARRANGEMENT DRAWING – 50-65 TON MODEL 64
YORK INTERNATIONAL
Page 65
SIDE SUPPLY / FRONT RETURN
R
FORM 100.50-EG3 (802)
T
TOP VIEW
S
M
N
H
D
F
C
REAR
K
EE
G
P
3.175 FPT COUPLING DRAIN CONNECTION
E
J
L
LEFT SIDE VIEW
DD
CC
BBAA
FRONT
W
Y
LD07881
T ABLE 30 – SIDE SUPPLY / FRONT RETURN (ALL DIMENSIONS ARE IN CM)
MODEL C D E F G H J K L M N
50-65 241.61 49.69 96.52 24.61 543.56 209.87 600.7 183.51 873.76 369.09 300.51
MODEL P R S T W Y AA BB CC DD EE
50-65 6.03 124.46 72.39 378.46 233.68 3.97 16.35 201.30 90.49 74.61 15.87
NOTES:
1. Left and right hand side openings are the same size.
2. Right supply available with cooling only units.
3. Left supply available with cooling only and gas heat units.
4. Bottom supply available on all configurations.
5. Rear return not available with exhaust/relief options.
6. Center of gravity information is based on a base cooling only unit.

FIG. 6 – GENERAL ARRANGEMENT DRAWING – 70-95 TON MODEL

YORK INTERNATIONAL
65
Page 66

General Arrangement Drawing – 70-95 Ton Models

BOTTOM SUPPLY / BOTTOM RETURN
T
U
R
AA
V
H
E
D
B
C
A
F
N
M
CC
TOP VIEW
3.175 FPT
P
G
J
L
K
LEFT SIDE VIEW
COUPLING DRAIN CONNECTION
BB
DD
S
WY
FRONTREAR
LD07882

TABLE 31 – BOTTOM SUPPLY / BOTTOM RETURN (ALL DIMENSIONS ARE IN CM)

MODEL A B C D E F G H J K L M N
70-85 350.04 58.1 241.61 49.69 96.52 24.61 574.04 235.27 814.07 1260.48 1153.16 519.43 410.21 90-95 350.04 58.1 241.61 49.69 96.52 24.61 614.68 235.27 826.77 1351.28 1239.52 532.13 410.21
MODEL P R S T U V W Y AA BB CC DD
70-85 6.033 121.92 87.63 408.94 179.39 11.75 233.68 3.97 210.19 11.75 121.92 11.75 90-95 6.033 121.92 72.39 378.46 179.39 11.75 233.68 3.97 210.19 11.75 137.16 11.75
NOTES:
1. Standard configuration.
2. Center of gravity information is based on a base cooling only unit equipped with power exhaust and economizer options.
FIG. 7 – GENERAL ARRANGEMENT DRAWING – 70-95 TON MODEL 66
YORK INTERNATIONAL
Page 67
SIDE SUPPLY / REAR RETURN
R
FORM 100.50-EG3 (802)
T
TOP VIEW
M
N
H
D
F
K
EE
G
3.175 FPT
P
COUPLING DRAIN CONNECTION
J
C
REAR
LEFT SIDE VIEW
L

T ABLE 32 – SIDE SUPPLY / FRONT RETURN (ALL DIMENSIONS ARE IN CM)

S
CC
DD
E
BBAA
WY
FRONT
LD07883
MODEL C D E F G H J K L M N P
70-85 241.61 49.69 99.06 24.61 640.08 235.27 814.07 209.07 1153.16 562.29 414.97 6.03 90-95 241.61 49.69 99.06 24.61 688.34 235.27 826.77 209.07 1239.52 569.91 414.97 6.03
MODEL R S T W Y AA BB CC DD EE
70-85 119.38 87.63 408.94 233.68 3.97 16.35 201.3 93.03 77.15 15.875 90-95 119.38 72.39 378.46 233.68 3.97 16.35 201.3 113.35 97.47 15.875
NOTES:
1. Left and right hand side openings are the same size.
2. Right supply available with cooling only units.
3. Left supply available with cooling only and gas heat unit.
4. Bottom supply available on all configurations.
5. Rear return not available with exhaust/relief options.
6. Rear return not available with exhaust/relief options.
7. Center of gravity information is based on a base cooling only unit.

FIG. 8 – GENERAL ARRANGEMENT DRAWING – 70-95 TON MODEL

YORK INTERNATIONAL
67
Page 68

General Arrangement Drawing 70-95 Ton Models (ONLY)

OPTIONAL SIDE RETURN
C
D
NOTE:
1. Left side shown, RH side available (mirror image).

TABLE 33 – OPTIONAL SIDE RETURN (CM)

MODEL A B C D
70-85 157.80 147.32 101.6 128.91 90-95 174.62 164.14 105.73 131.13
B
LD07313
A

FIG. 9 – GENERAL ARRANGEMENT DRAWING – 70-95 TON MODEL (ONLY)

68
YORK INTERNATIONAL
Page 69

Curb Layout Drawing

A
G
FORM 100.50-EG3 (802)
L
D
C
W
H
Condenser
Section
Supply Opening
E
6.35 Gas Outlet
3.81 MPT Connection
UNIT BASERAIL PROFILE
B
Return Opening
LD07885
3.17
3.81

TABLE 34 – CURB LA YOUT DIMENSIONS (CM)

MODEL A B C D E G H L W
50-65 5.08 95.89 495.3 596.9 181.77 40.64 26.03 861.06 220.98 70-85 5.08 127 627.38 736.6 181.77 45.72 26.03 1140.46 220.98 90-95 5.08 142.88 701.04 822.96 181.77 60.96 26.03 1226.82 220.98

FIG. 10 – CURB LAYOUT DRAWING

YORK INTERNATIONAL
11.75
6.67
5.08
LD07884
69
Page 70

Power/Control Entry Drawing

..
.
POWER SUPPLY KNOCKOUTS
59.69
.
...
.
.....
.
.
.
49.21
END VIEW
3.81 K.O. (5.08 O.D.)
5.08 K.O. (6.35 O.D.)
6.35 K.O. (7.62 O.D.)
6.35
144.78
15.875
PANEL A
1.905 K.O. (CONTROL WIRING)
137.16
90.17
83.82
77.47
31.115
23.50
15.875
15.24
BOTTOM VIEW

TABLE 35 – POWER/CONTROL ENTRY DIMENSIONS ARE IN CM

MODEL 208V 230V 460V 575V
50 AAB B 55 AAB B 60 AAB B 65 AAB B 70 AAB B 75 AAB B 80 AAB B 85 AAB B 90 AAA A 95 AAA A
15.875
PANEL B
1.905 K.O. (CONTROL WIRING)
90.17
77.47
31.115
23.50
15.875
15.24
LD07886
FIG. 11 – POWER/CONTROL ENTRY DRAWING – 50 - 95 TON MODELS 70
YORK INTERNATIONAL
Page 71

Guide Specifications

FORM 100.50-EG3 (802)
GENERAL
Units shall be designed for outdoor rooftop installation on a roof curb (optional). Units shall be capable of pro­viding mechanical cooling down to 7.2°C (-17.7°C with a low ambient kit). Unit shall be capable of starting and running at 48.8°C. Unit electric and gas connections shall be either through the curb or the side of the unit.
QUALITY ASSURANCE
Units shall be rated according to ARI 360 and conform to ASHRAE 90.1 energy ef ficiency requirements. Units shall be shipped in a single package, fully charged with HFC-407C (HCFC-22 optional) refrigerant. The manu­facturing facility shall be registered under ISO 9001 Quality Standards for Manufacturing. All units shall be completely factory wired and assembled, and undergo a complete and automated factory run test. The factory run test shall confirm proper operation of all functional components on the unit, configure the unit controller per the project and test the unit controller. Units shall be E.T.L. listed and be tested according to U.L. 1995.
Casing
The unit cabinet shall be one-inch double-wall construc­tion of all panels, doors, floor, roof and walls to provide both maximum resistance to bacterial growth in the air stream and superior structural integrity. All sheet metal shall be G90 mill galvanized sheet metal, formed and reinforced to provide a rigid assembly . Cabinet shall be coated with baked on powder paint which, when sub­ject to ASTM B117, 500 hour, 5% salt spray test. The unit shall be insulated with 1-1/2 pound fiberglass insu­lation between the two sheet metal skins. Insulation shall meet NFPA-90A regulations for smoke and flame spread ratings. Single-wall units, or foil-faced insula­tion in the air stream shall be not acceptable.
The cabinet corner post and the intermediate side sup­ports shall be a minimum of 16-gauge steel. All access doors shall be a minimum of 18-gauge on the exterior surfaces, and 20-gauge on the interior. Interior floor panels shall be 18-gauge. All serviceable sections shall have hinged access doors with latches on both sides of the unit. Each door shall seal against gaskets to pre­vent air and water leakage.
Warranty
Manufacturer shall Warrant all equipment and material of its manufacture against defects in workmanship and material for a period of one year from date of initial start-up or eighteen (18) months from date of shipment, whichever occurs first.
SHIPPING PREP ARATION AND UNIT CLEANLINESS
All units shall be shipped from the factory shrink-wrap in plastic to maintain a clean unit interior for maximum indoor air quality and to protect the exterior finish of the unit during transit. Tags and decals to aid in the service or indicate caution areas shall be provided. Installation, operation and maintenance manuals shall be supplied with each unit.
CONSTRUCTION
Base
The base rail shall be constructed of 12-gauge galva­nized steel, extending the full perimeter of the unit. All components shall be supported from the base, and the base shall include integral lifting lugs. The unit base rail shall overhang the roof curb for water runoff and shall have a fabricated recess with a continuous flat surface to seat on the roof curb gasket, providing a positive, weather tight seal between the unit and the curb.
YORK INTERNATIONAL
The roof shall be double wall, with 18-gauge on the external surface and 24-gauge on the interior. The roof shall be formed with a 45 degree “drip lip” overhanging the side walls to prevent precipitation drainage from streaming down the side of the unit. Roof sections shall be connected together via integral channels fastened with screws and sealed with gasketing. Each fastened seam shall be further protected by a sheet metal chan­nel covering the full length of the gasket surface, mak­ing a completely water tight seal.
SUPPL Y AIR FAN
Fan shall be centrifugal type, statically and dynamically balanced in the factory. Fan wheels shall be designed for continuous operation at the maximum rate of fan speed and motor HP. Fans shall be double-width, double-inlet with forward curved blades.
The fan and motor assembly shall be mounted on a common base to allow consistent belt tension with no relative motion between the fan and motor shafts. The entire assembly shall be isolated from the unit base with 1" deflection springs. The fan discharge shall be connected to the cabinet through a reinforced neoprene flexible connection to eliminate vibration transmission from the fan to the unit casing.
Bearings shall be self-aligning pillow-block re-greasable ball bearings with an average life expectancy L50 of 200,000 hours. Grease fittings shall be accessible through access doors.
71
Page 72
Guide Specifications (continued)
Fan motors shall be NEMA designed, Standard effi­ciency ball bearing type with electrical characteristics and horsepower as specified. Motors shall be 1750 RPM, open drip proof type. The motor shall be located within the unit on an adjustable, heavy steel base.
All fan motor drives shall be selected for a minimum service factor of 1.2 and have fixed pitched sheaves.
AIR FILTERING SYSTEM
All filter holding frames shall be of heavy-duty construc­tion designed for industrial applications. All filters shall be accessible from either side via access doors on both sides of the filter section.
All filter media shall be Class II listed under U.L. Stan­dard 900. Filter efficiencies shall be rated in accordance with ASHRAE Standard 52.
Two-inch throwaway filters in an angled filter rack shall be standard. On units with rigid filters, two-inch prefilters shall be installed upstream of the rigid filters.
AIR INLET SYSTEM
A factory installed outside air rain hood permanently attached to the cabinet to prevent windblown precipita­tion from entering the unit shall cover inlet openings. The rain hoods on the sides of the unit shall be rotated into the cabinet and secured for shipment so that upon installation they need only be rotated upwards and screwed into place. The outside air hood shall contain a removable and cleanable filter.
All damper assemblies shall be of low leak design. Damper blades shall be fabricated from a minimum of 16-gauge galvanized steel.
A st ainless steel double-sloped drain pan shall be pro­vided under the entire width of the evaporator coil, in­cluding all return bends. The main drain pan shall be sloped a total of 1/4" per foot towards the drainage point according to ASHRAE 62 guidelines. Main drain pan shall be accessible and cleanable in the field. The con­densate drain opening shall be flush with the bottom of the drain pan to allow complete drainage.
Compressors
Compressors shall be hermetic, scroll-type, including tip seals to provide efficient axial sealing while prevent­ing scroll tip to base contact, controlled orbit design for radial sealing to incorporate minimum flank-to-flank contact for long service life, refrigerant cooled motors, large suction side free volume and oil sump to provide liquid handling capability , annular discharge check valve and reverse vent assembly to provide low pressure drop, silent shutdown and reverse rotation protection, initial oil charge, oil level sight glass, vibration isolator mounts for compressors, and brazed-type connections for fully hermetic refrigerant circuits.
Condenser Coils
Condenser coils shall have 3/8" seamless copper tubes, arranged in staggered rows, mechanically expanded into aluminum fins. Coils shall be protected from hail dam­age with a “V” configuration, with individual flat coils ro­tated from the vertical plane for each condensing circuit.
Condenser Fans and Motors
Condenser fans shall be direct drive, propeller type, discharging vertically. Condenser fan motors shall be 3-phase, totally enclosed air over (TEAO). Thermal overload protection shall be provided for each con­denser fan motor.
Refrigerant Piping
REFRIGERATION SYSTEM
Units shall have four compressors (six for YPAL070 -
095) for maximum load-matching capability . Each refrig­erant circuit shall be controlled by two thermal expan­sion valves for maximum control at low load conditions.
Evaporator Coils
Evaporator coils shall be direct expansion. Coil tubes shall be 1/2" OD copper, with internally enhanced tubes. Fins shall be enhanced aluminum mechanically ex­panded to bond with the copper tubes. Coil casing shall be fabricated from heavy gauge galvanized steel.
72
All interconnecting piping between refrigeration com­ponents shall be copper tubing with brazed joints.
Each refrigerant circuit shall be equipped with liquid line filter drier, and moisture indicating sight glass. Each circuit shall also have both high and low pressure switches and include access fittings for replacement of the pressure switches without removing charge.
Polyurethane sleeves shall protect all small diameter distributor tubing to the evaporator coil to prevent the tubes from copper-to-copper contact during shipment or operation.
YORK INTERNATIONAL
Page 73
FORM 100.50-EG3 (802)
POWER SUPPLY
Unit power supply shall be 460V 3-phase 60 Hz (208, 230 and 575V optional) single-point power connections with terminal block connections.
GAS-FIRED HEA TING SECTION
One or two (or three for the YPAL070-095) gas-fired heating modules shall be installed to provide the heat­ing requirements per the schedule shown on the plans.
The heat exchanger shall be of tubular design. Tubes shall be 2-1/4" OD and constructed of minimum 20­gauge, G160 aluminized steel (1.6 mil aluminum sili­cone alloy) for corrosion resistance.
Each gas-fired heat module shall have an induced draft combustion fan with reliable spark ignition and redun­dant gas valves with pressure regulator.
An induced draft fan shall be provided to maintain a positive flow of air through each tube, to expel the flue gas and to maintain a negative pressure within the heat exchanger relative to the conditioned space. Induced draft fans shall be direct-drive.
Dual (2) high limit controllers per heating module, with automatic reset to prevent the heat exchanger from operating at an excessive temperature will be installed. A safety pressure switch in the induced draf t fan motor circuit must be provided to prevent ignition until suffi­cient air flow is established through the heat exchanger . Airflow safety shall be provided by rollout switch pro­tection and shall discontinue furnace operation if the flue becomes restricted.
Units shall ship with an external flue to be shipped in the unit and mounted on the job site. The flue shall discharge products of combustion above the unit, pre­venting recycling of corrosive combustion gases back through the heat exchanger. Gas heating sections shall be U.L./CSA certified to both US and Canadian safety standards.
ELECTRIC HEAT SECTION
An electric slip-in heater shall be installed within the rooftop unit to provide the heating requirements per the schedule shown on the plans. The electric heater shall be wired in such a manner as to provide multiple steps of capacity .
The heater shall be an industrial grade design using an open coil(s) made of the highest grade resistance wire
containing 80% nickel and 20% chromium. The resis­tance coil(s) shall be adequately supported in the air stream using ceramic bushings in the supporting frame­work. Terminals of the coil(s) shall be stainless steel with high temperature ceramic bushings.
The primary high temperature protection shall be an automatic reset type thermal cut out. Secondary pro­tection shall be an automatic reset type thermal cut out. Secondary protection shall be a replaceable thermal link.
The operation of the electric heater shall be an integral part of the roof top control system. Power connection to the strip heater shall be through the single power point connection for the entire unit. Electric heat shall be E.T.L. certified.
CONTROLS
A factory-mounted unit controller with a 4x20 character alphanumeric display and one-touch keypad shall be included as standard. The controller and keypad shall be housed inside the low-voltage compartment of the control/power panel. On units with supply or exhaust VFDs, the VFD keypads shall be located inside the same panel as the unit controller and interface keypad. Control operating data, setpoints, unit setup, configu­ration, service and history shall all be accessible via a single key. A system alarm LED shall indicate failures to the operator with more detail provide in the menu screens. The user interface shall function with a simple menu-driven display for easy access to unit data with integral time clock for weekly and holiday scheduling. The unit keypad shall include password protection to prevent unauthorized access and tampering with unit setpoints and configuration.
A single terminal strip shall be provided for all thermo­stat and customer hard-wire connections.
Unit controls shall be completely factory packaged and compatible with a room thermostat. Constant volume units shall operate with a two (2) cool/two (2) heat ther­mostat. St aging decisions shall be based upon the de­viation of space temperature from set point and the rate of change of the space temperature.
VAV units shall operate with a sensor in the supply air stream for cooling operation. Staging decisions shall be based upon the deviation of supply air temperature from set point and the rate of change of the supply air temperature.
Controllers shall have the following safeties (both VAV and CV):
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Guide Specifications (continued)
• High and low pressure cutouts (one each refriger­ant circuit)
• Minimum on time for compressors
• Delay between compressor stages
• Anti-short cycle delays (minimum off time) for com­pressors and supply fan
• Cooling lockout at 7.2°C; -17.7°C if equipped for low ambient operation
• Air flow proving switch which proves that the fan is operational
POWER OPTIONS
Single-Point Supply with Terminal Block – includes
enclosure, terminal-block, and interconnecting wiring to the compressors. Separate external protection must be supplied, by others, in the incoming compressor power wiring. (Do not include this option if either the Single-Point Non-Fused Disconnect Switch or Single-Point Circuit Breaker options have been included.)
Single-Point Supply with Non-fused Disconnect Switch – A unit-mounted disconnect switch with exter-
nal, lockable handle (in compliance with Article 440-14 of N.E.C.), can be supplied to isolate the unit power volt­age for servicing. Separate external fusing must be sup­plied, by others in the power wiring, which must comply with the National Electric Code and/or local codes. (This option includes the Single-Point Power connection.)
Dual-Point Supply with Terminal Block – includes enclosure, one terminal-block with interconnecting wir­ing to the supply and exhaust fans and control trans­former and a second terminal block with interconnect­ing wiring to the compressors and condenser. Sepa­rate external protection must be supplied, by others, in the incoming compressor power wiring.
Convenience Outlet – an optional 1 15V convenience outlet can be provided to power hand tools for servic­ing the rooftop unit.
CONTROL OPTIONS Note: On standard units, mechanical cooling may op-
erate down to 7.2°C.
Low Ambient on Systems One and T wo – This option includes low ambient control of the first and second re­frigerant system down to -17.7°C through the use of dis­charge pressure transducers and variable speed drives that will vary the speed of the condenser fans to control condensing pressure. This option applies to YPAL050­065 models. On YP AL070-095 models, mechanical cool­ing with system three is locked out below 7.2°C.
Low Ambient on Systems One, Two and Three –
This option includes low ambient control of the first, second, and third refrigerant system down to -17.7°C through the use of discharge pressure transducers and variable speed drives that will vary the speed of the condenser fans to control condensing pressure. This option not available on models YP AL050-065.
Low Ambient on System One + Transducers on System 2 (and 3 for YPAL070-095) – on standard
units, mechanical cooling may operate down to 7.2°C. This option includes low ambient control of the first refrigerant system down to -17.7°C through the use of suction and discharge pressure transducers on sys­tem one. Suction and discharge pressure transduc­ers are included on remaining system(s) for readout only. Mechanical cooling with remaining system(s) is locked out below 7.2°C.
Pressure Transducer with Readout Cap ability – suc­tion and discharge pressure transducers are configured for pressure readout of all systems. This option is avail­able only on units without low ambient control. Low am­bient options already include pressure transducers on those specific systems. The two options listed directly before this option describe option combinations of low ambient and pressure transducer readout options.
Wall-Mount Zone Sensor , No Setpoint Adjustment –
a 1 kOhm thin-film nickel zone sensor for wall mounting. This zone sensor is for sensing temperature only, and does not include any setpoint adjustment features.
Wall-Mount Zone Sensor, Scaled Setpoint Adjust­ment – a 1 kOhm thin-film nickel zone sensor for wall
mounting. This zone sensor is for sensing tempera­ture and includes a scaled temperature setpoint ad­justment feature.
Low Ambient on System One – This option includes low ambient control of the first refrigerant system down to 0°F through the use of discharge pressure trans­ducer and a variable speed drive that will vary the speed of the condenser fan to control condensing pressure. Mechanical cooling with system two (and three for YP AL070-095) is locked out below 7.2°C.
74
Wall-Mount Zone Sensor, Nonscaled Setpoint Ad­justment – a 1 kOhm thin-film nickel zone sensor for
wall mounting. This zone sensor is for sensing tem­perature and includes a non-scaled (warmer-cooler) set­point adjustment feature.
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FORM 100.50-EG3 (802)
BACNet IP Communications Card – for BAS com­munications, a BACNet card is available for ethernet connection.
BACNet MSTP Communications Card – for BAS com­munications, a BACNet MSTP card is available for an RS-485 connection.
IAQ OPTIONS Filter Options – two-inch throwaway, cleanable, car-
bon or pleated filters in an angled rack are available. Additionally, twelve-inch 65% or 95% efficient rigid fil­ters in a flat rack with two-inch prefilters. For field-supplied filters, the unit may be ordered with a rigid filter rack without filter media.
Manual Damper – economizer is available with a manual damper adjustable between 0-25 percent.
Two-Position – economizer is available with a two-position damper with the open position manually adjustable between 0-25 percent. It is controlled via the occupied/unoccupied signal from the unit controller. In occupied mode, the economizer will be open and in the unoccupied mode, the dampers will be closed.
0-100% Modulating modulating control of exhaust air to maintain building static pressure. Outdoor air and return air dampers are interlocked and positioned by fully modulating, solid state damper actuators. Control of the damper is via a dry bulb sensor, single or com­parative enthalpy .
Airflow Measurement – airflow measurement is avail­able for the Modulating Damper Economizer option listed above. Three options exist for airflow measurement; minimum, full and 25%/75% airflow. Minimum airflow measures airflow between 0 and the minimum ventila­tion airflow up to 25% outside air. 100% airflow mea­surement measures air flow from 0-100% of the outside airflow. A third option includes a two-stage airflow mea­surement; stage one 0-25% and stage two 25-100%.
2
CO
Sensors – carbon dioxide sensors for occupied
space that operate demand ventilation control opening outside air dampers to ventilate building. A vailable with 0-100% modulating economizer.
RELIEF SYSTEM
to the building pressure. The opening pressure shall be adjustable.
Power Exhaust – exhaust control options are on/off, modulating discharge damper, or VFD fan speed con­trol. On units with non-modulating exhaust a baromet­ric relief damper is included to prevent outside air from entering in the off cycle. Fans shall cycle on and off with building pressure. (On units with modulating ex­haust, a field-installed static pressure sensor mounted in the conditioned space or return air duct is required for damper and VFD modulation.)
EV APORATOR COIL PROTECTION Copper Fins – provided in lieu of aluminum fins. Pre-Coated Fins – an epoxy-coated aluminum fin stock
to guard from corrosive agents and insulate against galvanic potential. Used for mild seashore or industrial locations.
CONDENSER COIL PROTECTION
Copper Fins – provided in lieu of aluminum fins.
Pre-Coated Fins - an epoxy-coated aluminum fin stock to guard from corrosive agents and insulate against galvanic potential. Used for mild seashore or industrial locations.
Post-Coated Fins – Technicoat coil-coating process used on condenser coils for seashore and other corro­sive applications (with the exception of strong alkalis, oxidizers, wet bromide, chlorine and fluorine in concen­trations greater than 100ppm).
REFRIGERANT SYSTEM OPTIONS Hot Gas Bypass – Permits continuous, stable opera-
tion at capacities below the minimum step of compres­sor staging to as low as 5% capacity (depending on both the unit and operating conditions) by introducing an artificial load to the evaporator coil. Hot gas bypass is standard on refrigerant system #1 on V A V units; avail­able as an option on constant volume.
Replaceable Core Liquid Line Driers – liquid line dri­ers are standard on the eco2 rooftop unit. An option is provided for replaceable core driers.
Barometric Relief – building air exhaust shall be ac­complished through barometric relief dampers installed in the return air plenum. The dampers will open relative
YORK INTERNATIONAL
Compressor Isolation Valves – optional ball valves installed in the compressor suction and discharge lines allow easier access to the compressors without having to remove the unit charge during compressor servicing.
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Guide Specifications (continued)
ROOF CURBS Full Perimeter Roof Curbs – 14" high roof curb with wood
nailer. Roof curb supports the entire perimeter of the unit. Partial perimeter roof curbs – 14" high roof curb with
wood nailer. Roof curb supports the air handling sec­tion with a separate support under the condenser end.
ACCESSORIES Compressor Sound Blankets – compressor acoustic
sound blankets for sound sensitive applications. Filter Switch – an optional dirty filter alarm can be pro-
vided that will provide an alarm when the filters require cleaning.
Return Air Temperature Sensor – this sensor when ordered separately can be used for readout through the OptiLogic controller, and it can be used as a backup in the event space temperature sensor fails for tempo­rary unit operation. For units supplied with a compara­tive enthalpy economizer control, this option is already included. This sensor is included with heat options, and optional for units with cooling options. This sensor must be present for morning warm-up.
Condenser Coil Guard – this optional wire guard pro­tects the condenser section from access and is used for unit aesthetics.
Louvered Panels – Louvered panels surround the front, back, and sides of the unit. These prevent unautho­rized access and visually screen unit components. Un­restricted air flow is permitted through generously sized louvered openings. This option is applicable for any outdoor design ambient temperature up to 46.1°C. (Fac­tory- or Field-mounted.)
SUPPLY F AN OPTIONS Fan Skid Isolation – the entire supply fan assembly
shall be isolated from the unit base with two-inch de­flection springs, or one or two-inch deflection springs with seismic restraints.
Supply and Exhaust Fan Motors – high efficiency ODP, standard and high efficiency TEFC motors are available, all meeting the Energy Policy Act of 1992 (EPACT).
Supply Fan VFD and Manual Bypass – for VAV ap­plications, VFDs are provided to modulate air flow. Op­tional manual bypass can also be provided to allow full airflow in the event of a VFD failure.
P.O. Box 1592, York, Pennsylvania USA 17405-1592 Subject to change without notice. Printed in USA Copyright © by York International Corporation 2002 ALL RIGHTS RESERVED
Form 100.50-EG3 (802) New Release
Tele. 800-861-1001
www.york.com
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