York Y34, Y33, Y32 manual Steam Heating, Physical Data Steam Coil 1 ROW, Steam Coil 1 ROW, 40 TON

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246653-YTG-E-0108

STEAM HEATING

The YORK Millennium units (25, 30, and 40 ton sizes) can be manufactured with a steam heat coil (Bottom Supply only). YORK's one row steam coil is installed in the heating section just downstream of the supply air fan and just above the sup- ply air opening in the bottom of the unit.

The steam control valve will not be provided. The installer will need to field supply a steam control valve. Connect the steam piping and valve power wiring at the job site for the steam heat section to be operational.

There are no provisions in the coil or control sequence to pre- vent freezing of condensate. The control valve, piping and field installed wiring connections are particularly vulnerable because they are installed in the vestibule outside of the con- ditioned air stream.

All piping, control valves, and wiring that is field installed must conform to all local and national codes

Condensate can freeze on the control valve and piping if they are not properly insulated.

PHYSICAL DATA STEAM COIL - 1 ROW

Coil Casing . . . . . . . . . . . . . . . . . . . . Galvanized Steel Coil Construction . . . . . . . . . . . . . . . Al Fin / Cu. Tube Rows Deep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Fin Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . ..010” Tube Wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..035” Tubes / Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Fins Per Inch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Tubes High . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21” Tube Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65” Face Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.48 ft.2 Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 lbs.

*Hot water, steam coil or electric heat not available for front or rear supply.

TABLE 22: STEAM COIL (1 ROW, 40 TON)

CFM

CAPACITY (MBH) AT STEAM PRESSURE (PSI)

2

6

10

15

 

8000

221.1

236.9

250.4

265.0

11000

252.9

271.0

286.4

303.1

14000

278.2

298.0

315.0

333.4

17000

299.4

320.7

339.0

358.8

20000

317.6

340.2

359.6

380.6

TABLE 23: STATIC RESISTANCE STEAM COIL (1 ROW, 40 TON)

CFM

8000

11000

14000

17000

20000

AIR PRESSURE DROP

0.18

0.31

0.48

0.67

0.88

PIPING CONNECTIONS

The steam piping must enter the unit through the floor of the heat section compartment. The access doors to the compart- ment are gasketed to the compartment can be sealed. How- ever, as added protection for condensate leakage into the space, the piping access holes should be sealed with a heat resistant mastic. The following figure illustrates the approxi- mate location of the compartment and piping connections.

TOPVIEW

 

STEAM

CONDENSING

 

COIL

SECTION

 

26"

 

 

 

OUTLET(11/2")

15.8"

INLET(2")

OUTSIDEOF

 

BASERAIL

 

8"

 

8.38"

 

 

2.55"

 

9"

88.75"

HEATSECTION

 

 

 

COMPARTMENT

C

 

 

 

 

L

 

TABLE 20: STEAM COIL (1 ROW, 25 & 30 TON)1

CFM

CAPACITY (MBH) AT STEAM PRESSURE (PSI)

2

6

10

15

 

6000

194.1

207.9

219.8

232.6

8000

221.1

236.9

250.4

265.0

10000

243.2

260.5

275.4

291.4

12000

261.9

280.6

296.6

313.9

15000

285.6

306.0

323.5

342.4

1.Based on 60°F entering air temperature, 2.00” maximum air pressure drop across the coil.

TABLE 21: STATIC RESISTANCE STEAM COIL (1 ROW, 25 & 30 TON)

CFM

6000

8000

10000

12000

15000

AIR PRESSURE DROP

0.11

0.18

0.26

0.36

0.54

FIGURE 18 - STEAM PIPING CROSS SECTION

DO NOT use tin based solder. Brazing with tin based solder could cause equipment damage or possible injury to OCCUPANTS of the structure that is being conditioned.

Johnson Controls Unitary Products

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Contents Millennium Single Package Rooftop Units Millennium Simplicity Elite FeaturesTOMORROW’S Unit Today General FeaturingTable of Contents List of Figures Power Exhaust ONE Forward CurveElectrical Data 40 TON with Electric List of TablesOverview Features and BenefitsInstallation Features Construction Features Standard Features List of Features and BenefitsFactory Installed Options Field Installed AccessoriesNomenclature General Physical Data Refrigerant Charge Selection ProcedureSelect Unit Unit Tons Model TypeStandard GAS Heating Capacities Temperature RiseMinimum Heating CFM Modulating GAS Heating CapacitiesElectric Heating Capacities Modulating HeatMBH Physical Data HOT Water Coil 1 ROW HOT Water HEATING1Water Pressure Drop 1 ROW, 25 & 30 TON Static Resistance HOT Water Coil 25 & 30 TONHOT Water Coil 1 ROW 40 TON1 HOT Water Coil 25 & 30 TON, 1 ROW, AT 10 GPM HOT Water Coil 25 & 30 TON, 1 ROW, AT 30 GPM HOT Water Coil 40 TON, 1 ROW, AT 10 GPM HOT Water Coil 40 TON, 1 ROW, AT 30 GPM Water Pressure Drop 2 ROW, 25 & 30 TON Physical Data HOT Water Coil 2 ROWHOT Water Coil 2 ROW, 25 & 30 TON1 HOT Water Coil 2 ROWS, 40 TON1HOT Water Coil 25 & 30 TON, 2 ROW, AT 20 GPM HOT Water Coil 25 & 30 TON, 2 ROW, AT 60 GPM HOT Water Coil 40 TON, 2 ROW, AT 20 GPM HOT Water Coil 40 TON, 2 ROW, AT 60 GPM Physical Data Steam Coil 1 ROW Steam HeatingSteam Coil 1 ROW, 40 TON Static Resistance Steam Coil 1 ROW, 40 TONSteam Coil 40 TON, 1 ROW Supply FAN Motor and Drive DATA1 Exhaust FAN Drive DataRPM STDExample Supply AIR Drive Adjustment30 TON Drive Adjustment 25 TON Drive Adjustment40 TON Drive Adjustment Drive Adjustment for Power Exhaust 30 & 40 TON Drive Adjustment for Power Exhaust 25 TONRPM REQ’D PD HP M Otor & 976 RPM D RiveMBH Cooling Performance 25 TONCooling Performance 30 TON Standard Capacity Coil 95F 105F 125F Cooling Performance 30 TON High Capacity Coil 95F 105F CFM Cooling Performance 40 TON Standard Capacity Coil 95F 105F 115F 125F Cooling Performance 40 TON High Capacity Coil 95F 105F 115F 125F AIR Temp Altitude Feet Altitude Correction FactorsYTG-E-0108 Available External Static Pressure IWG Airflow CFM RPM BHP3 FAN Performance 25 TON1800 RPM BHP3 FAN Performance 30 TON 1Ton Forward Curve 18000 FAN Performance 40 TON1,2FAN Performance 40 TON FAN Performance 25 & 30 TON AIRFOIL1,2 1601 1636 1672 1707 1740 FAN Performance 40 TON AIRFOIL1,2 17000 18000 Component Static RESISTANCE1 Available External Static Pressure IWG Airflow CFM RPM BHP2 Power Exhaust ONE Forward Curved FAN 25 TON1Power Exhaust 25 Ton Power Exhaust TWO Forward Curved Fans 30 & 40 TON1 Power Exhaust TWO Forward Curved Fans 30 & 40 Tons Electrical Data 30 TON Basic Unit R22 Electrical Data 25 TON Basic Unit R22Electrical Data 40 TON Basic Unit R22 MCA Electrical Data 25 TON with Electric Heat R22MPS RLA LRA MCC QTY FLAQTY RLA LRA MCC FLA Electrical Data 30 TON with Electric Heat R22Electrical Data 40 TON with Electric Heat R22 Electrical Data 25 TON with Power Exhaust R22 Electrical Data 30 TON with Power Exhaust R22 Electrical Data 40 TON with Power Exhaust R22 RLA LRA MCC YTG-E-0108 11.0 14.2 100 22.2 17.0 22.0 110 208-3-60 460-3-60 11.0 17.0 12.4 19.3 100 22.0 110 27.0 102 109 125 107 208-3-60 460-3-60 11.0 17.0 100 12.4 19.3 110 22.0 101 125 27.0 107 102 109 Supply FAN Motor VFD Weights Unit WeightsExhaust FAN Motor VFD Weights LECT. H EATIndoor Sound Power Rating Unit CornerweightOutdoor Sound Power Rating Attenuation FactorsRear Left Side Right Left Side Left Side Rear Front Rear Rear Millennium Overhead View Back View Endfixedreturnoutsideorwithair Partial Roof Curb Model 1RC0455P Guide Specifications York Millennium 25, 30, & 40 TON Units AIR Filtering System Energy Recovery Ventilation Field Installed OptionAIR Inlet System Heating System OptionalElectric Heating Section Refrigeration SystemHot Water Heating Coil Steam Heating CoilControls Equipment Control Features Comfort Control FeaturesOverview Optional Communication TranslatorOptional Control Available AccessoriesJohnson Controls Unitary Products York Drive Norman, OK

Y32, Y34, Y33 specifications

The York Y33, Y32, and Y34 series represents a significant advancement in rooftop packaged units designed for commercial HVAC applications. These models are known for their reliability, energy efficiency, and innovative features that cater to diverse climate control needs.

The York Y33 series introduces modern features aimed at maximizing comfort and reducing energy costs. Its sleek design and compact size make it a versatile option for various applications, including retail spaces, office buildings, and industrial facilities. One of the standout features of the Y33 is its variable-speed compressor technology. This allows the unit to adjust its cooling output based on real-time demand, resulting in notable energy savings compared to traditional single-speed units.

The Y32 model builds upon the strengths of the Y33, offering enhanced capabilities for large commercial spaces. It incorporates advanced controls and building management system (BMS) connectivity, enabling seamless integration into existing infrastructure. The Y32 is designed with a focus on ease of maintenance and serviceability, featuring accessible components that streamline repair processes.

The York Y34 series emphasizes environmentally friendly practices, utilizing low-GWP refrigerants that minimizes its impact on the environment. It also boasts improved heat exchangers that increase efficiency and performance. The Y34’s design minimizes noise levels, making it ideal for applications where quiet operation is paramount, such as schools and healthcare facilities.

All three models share several key technologies, including fan and motor designs that optimize airflow while reducing energy consumption. Additionally, the series features enhanced insulation, significantly improving thermal performance and reducing the risk of condensation-related issues.

In summary, the York Y33, Y32, and Y34 models represent a commitment to innovation in commercial HVAC systems. Their combination of advanced technology, energy efficiency, and user-friendly design makes them suitable for a variety of applications while promoting sustainability and operational cost-effectiveness. Investing in these units not only supports optimal indoor climate control but also aligns with the growing demand for eco-friendly solutions in today’s commercial landscape.
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