Technical Guide

ManualsBrandsYork ManualsPackaged UnitYork DNZ Packaged Unit

FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE

718444-YTG-C-0712

TECHNICAL GUIDE

Description

These York

Affinity™ packaged cooling/heating air

conditioners are designed for outdoor installation. Only utility

and duct connections are required at the point of installation.

The single or two stage gas-fired heaters have aluminized steel

tubular heat exchangers and spark to pilot ignition. They are

available in natural gas with field conversion to propane.

R-410A

AFFINITY™ SERIES

DNZ MODELS

2 - 5 TON

60 Hertz

Tested in accordance with:

Summary of content (36 pages)

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718444-YTG-C-0712 TECHNICAL GUIDE R-410A AFFINITY™ SERIES DNZ MODELS 2 - 5 TON 60 Hertz Description These York® Affinity™ packaged cooling/heating air conditioners are designed for outdoor installation. Only utility and duct connections are required at the point of installation. The single or two stage gas-fired heaters have aluminized steel tubular heat exchangers and spark to pilot ignition. They are available in natural gas with field conversion to propane.
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718444-YTG-C-0712 Table of Contents Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Component Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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718444-YTG-C-0712 Nomenclature Cooling/Gas Unit D 3 NZ 036 N 036 06 Product Category Voltage Code D = Single Package Air Conditioner 06 = 208/230-1-60 25 = 208/230-3-60 46 = 460-3-60 Product Generation 3 = 3rd Generation 4 = 4th Generation 5 = 5th Generation Product Identifier NZ = R-410A 13 SEER Gas Heat/Electric Factory Installed Gas Heat N = Single Stage D = Two Stage (Single Phase Only) Nominal Cooling Capacity (MBH) 024 = 24,000 BTUH 030 = 30,000 BTUH 036 = 36,000 BTUH Features and Benefi
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718444-YTG-C-0712 • Top Discharge - The top discharge condenser fan does not disrupt neighboring areas or dry-out vegetation surrounding the unit. The warm air from the top mounted fan is blown up away from the structure and any landscaping. This allows compact location on multi-unit applications. • Condenser Coil Grille - All models utilize a decorative “Wire Form” coil guard to provide impact protection against large objects.
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718444-YTG-C-0712 control and less than 1% leak rate. Includes hood and mesh bird screen filter integrated into the hood, dry bulb sensor and relief damper. Separate field accessories of single enthalpy and dual enthalpy are also available. A built-in barometric relief of 25% is provided. • Single Enthalpy Sensor - Sensor replaces dry bulb sensor standard in economizer kit. Provides improved economizer operation by sensing the dry bulb temperature from outdoors plus the enthalpy content of the outdoor air.
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718444-YTG-C-0712 standard 24” O.C. beams without modification to building structure, duct work and base unit. Condensate pan shall be internally sloped and conform to ASHRAE 62-89 self-draining standards, with 3/4” NPTF ridged mount connection. Indoor (Evaporator) Fan Assembly Fan shall be direct drive design. Fan wheel shall be double-inlet type with forward-curved blades, dynamically balanced to operate smoothly throughout the entire range of operation. Airflow design shall be constant air volume.
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18444-YTG-C-0712 Physical Data DNZ024-060 Single Stage Gas Heat Component Nominal Tonnage AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (MBh) AHRI net capacity (MBh) EER SEER Nominal CFM System power (KW) Refrigerant type Refrigerant charge (lb-oz) AHRI HEATING PERFORMANCE Heating model Heat input (K Btu) Heat output (K Btu) AFUE % Steady state efficiency (%) No. burners No. stages Temperature Rise Range (ºF) Gas Limit Setting (ºF) Gas piping connection (in.
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718444-YTG-C-0712 DNZ024-060 Two Stage Gas Heat Component Nominal Tonnage AHRI COOLING PERFORMANCE Gross Capacity @ AHRI A point (MBh) AHRI net capacity (MBh) EER SEER Nominal CFM System power (KW) Refrigerant type Refrigerant charge (lb-oz) AHRI HEATING PERFORMANCE Heating model Heat input (K Btu) Heat output (K Btu) AFUE % Steady state efficiency (%) No. burners No. stages Temperature Rise Range (ºF) Gas Limit Setting (ºF) Gas piping connection (in.) DIMENSIONS (inches) Length Width Height OPERATING WT.
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718444-YTG-C-0712 DNZ Unit Limitations Size (Tons) Model Unit Voltage Unit Limitations Applied Voltage Min Max 024 (2.0) DNZ 208/230-1-60 187 252 125 030 (2.5) DNZ 036 (3.0) DNZ 042 (3.5) DNZ 048 (4.0) DNZ 060 (5.
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718444-YTG-C-0712 Capacity Performance DNZ024-060 Cooling Capacities DNZ024 (2.0 Ton) Air on Evaporator Coil CFM 500 600 700 800 900 1000 10 WB (°F) Net Capacity1 (MBh) Total Input (kW)2 90 77 72 67 62 77 72 67 62 57 77 72 67 62 57 77 72 67 62 57 72 67 62 57 72 67 62 57 29.9 28.3 26.6 25.0 30.2 28.5 26.9 25.3 26.4 30.5 28.8 27.2 25.6 26.7 30.8 29.1 27.4 25.9 27.0 30.0 28.2 26.6 27.8 30.8 29.0 27.3 28.5 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.6 1.
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718444-YTG-C-0712 DNZ024 (2.0 Ton) (Continued) Air on Evaporator Coil CFM 500 600 700 800 900 1000 WB (°F) Net Capacity1 (MBh) Total Input (kW)2 90 77 72 67 62 77 72 67 62 57 77 72 67 62 57 77 72 67 62 57 72 67 62 57 72 67 62 57 23.9 22.5 21.1 18.5 25.2 23.7 22.3 19.5 21.0 26.5 24.9 23.4 20.5 22.1 27.8 26.2 24.6 21.5 23.2 26.1 24.5 21.5 23.1 26.1 24.5 21.4 23.1 2.0 1.9 1.9 1.9 2.0 1.9 1.9 1.9 1.9 2.0 1.9 1.9 1.9 1.9 2.0 1.9 1.9 1.9 1.9 2.0 1.9 1.9 1.9 2.0 1.9 1.9 1.9 12.8 15.5 18.2 18.5 14.
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718444-YTG-C-0712 DNZ024 (2.0 Ton) (Continued) Air on Evaporator Coil CFM WB (°F) 77 500 72 67 62 77 72 600 67 62 57 77 72 700 67 62 57 77 72 800 67 62 57 72 900 67 62 57 72 1000 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 21.8 19.1 16.3 15.5 22.8 19.9 17.1 16.2 17.3 23.8 20.8 17.8 16.9 18.0 24.7 21.6 18.5 17.6 18.8 22.0 18.8 17.8 19.1 22.3 19.1 18.1 19.4 2.3 2.2 2.2 2.2 2.3 2.2 2.2 2.2 2.2 2.3 2.2 2.2 2.2 2.2 2.3 2.3 2.2 2.2 2.2 2.3 2.2 2.2 2.2 2.3 2.2 2.2 2.2 10.0 13.2 16.3 15.
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718444-YTG-C-0712 DNZ030 (2.5 Ton) Air on Evaporator Coil CFM WB (°F) 77 850 72 67 62 57 77 900 72 67 62 57 77 950 72 67 62 57 72 1000 67 62 57 72 1125 67 62 57 72 1250 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 35.3 33.5 31.6 29.7 37.1 35.1 33.2 31.2 29.9 38.8 36.8 34.8 32.7 31.3 40.6 38.5 36.4 34.2 32.8 39.1 37.0 34.7 33.3 39.8 37.6 35.3 33.8 2.1 2.1 2.1 2.0 2.1 2.1 2.1 2.0 2.0 2.1 2.1 2.1 2.1 2.1 2.2 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.1 2.2 2.1 2.1 2.1 15.9 20.8 25.7 29.7 17.0 22.
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718444-YTG-C-0712 DNZ030 (2.5 Ton) (Continued) Air on Evaporator Coil CFM WB (°F) 77 850 72 67 62 57 77 900 72 67 62 57 77 950 72 67 62 57 72 1000 67 62 57 72 1125 67 62 57 72 1250 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 29.0 25.7 22.4 21.0 30.0 26.6 23.2 21.8 21.8 31.1 27.6 24.1 22.5 22.6 32.2 28.6 24.9 23.3 23.4 29.1 25.3 23.7 23.8 29.6 25.8 24.2 24.2 3.0 2.9 2.8 2.8 3.0 2.9 2.8 2.8 2.8 3.0 2.9 2.9 2.8 2.8 3.1 3.0 2.9 2.8 2.8 3.0 2.9 2.8 2.9 3.0 2.9 2.9 2.9 17.6 20.0 22.4 21.
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718444-YTG-C-0712 DNZ036 (3.0 Ton) Air on Evaporator Coil CFM WB (°F) 77 750 72 67 62 77 72 900 67 62 57 77 72 1050 67 62 57 77 72 1200 67 62 57 72 1350 67 62 57 72 1500 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 36.9 34.7 32.6 30.7 39.2 36.8 34.5 32.4 32.7 41.4 38.9 36.4 34.2 34.5 43.7 41.0 38.4 36.0 36.3 41.7 39.0 36.5 36.9 42.4 39.6 37.1 37.4 1.9 2.0 2.1 2.0 1.9 2.0 2.2 2.0 2.1 2.0 2.1 2.2 2.1 2.1 2.0 2.1 2.2 2.1 2.1 2.1 2.2 2.0 2.1 2.0 2.1 2.0 2.0 18.9 22.9 26.9 30.7 20.6 25.
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718444-YTG-C-0712 DNZ036 (3.0 Ton) (Continued) Air on Evaporator Coil CFM WB (°F) 77 750 72 67 62 77 72 900 67 62 57 77 72 1050 67 62 57 77 72 1200 67 62 57 72 1350 67 62 57 72 1500 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 36.2 33.0 29.8 28.1 35.8 32.6 29.4 27.8 28.5 35.4 32.2 29.1 27.4 28.2 34.9 31.8 28.7 27.1 27.8 31.9 28.8 27.1 27.9 31.9 28.8 27.1 27.9 3.6 3.7 3.8 3.8 3.6 3.7 3.8 3.9 3.8 3.7 3.8 3.8 3.9 3.8 3.7 3.8 3.9 3.9 3.9 3.8 3.9 3.9 3.8 3.7 3.8 3.9 3.8 14.4 21.5 28.6 28.
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718444-YTG-C-0712 DNZ042 (3.5 Ton) Air on Evaporator Coil CFM WB (°F) 77 875 72 67 62 57 77 1050 72 67 62 57 77 1225 72 67 62 57 72 1400 67 62 57 72 1515 67 62 57 72 1630 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 46.4 44.6 42.8 39.1 48.9 47.0 45.0 41.2 40.1 51.4 49.3 47.3 43.3 42.1 53.8 51.7 49.5 45.3 44.2 51.7 49.5 45.4 44.2 51.7 49.6 45.4 44.2 2.7 2.6 2.6 2.5 2.7 2.7 2.6 2.6 2.5 2.7 2.7 2.6 2.6 2.6 2.7 2.7 2.7 2.6 2.6 2.7 2.7 2.6 2.6 2.7 2.7 2.6 2.6 21.7 27.5 33.3 39.1 23.1 30.
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718444-YTG-C-0712 DNZ042 (3.5 Ton) (Continued) Air on Evaporator Coil CFM WB (°F) 77 875 72 67 62 57 77 1050 72 67 62 57 77 1225 72 67 62 57 72 1400 67 62 57 72 1515 67 62 57 72 1630 67 62 57 Net Capacity1 (MBh) Total Input (kW)2 90 39.1 34.3 29.6 31.0 40.7 35.8 30.8 32.3 29.5 42.4 37.2 32.0 33.6 30.7 44.0 38.6 33.2 34.8 31.9 38.9 33.5 35.1 32.1 39.2 33.8 35.4 32.4 3.8 3.7 3.6 3.5 3.8 3.7 3.6 3.5 3.6 3.8 3.7 3.6 3.6 3.6 3.8 3.7 3.6 3.6 3.6 3.7 3.6 3.6 3.6 3.7 3.6 3.6 3.6 18.9 24.2 29.
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718444-YTG-C-0712 DNZ048 (4.0 Ton) Air on Evaporator Coil CFM 1000 1200 1400 1600 1750 1900 WB (°F) Net Capacity1 (MBh) Total Input (kW)2 90 77 72 67 62 77 72 67 62 57 77 72 67 62 57 77 72 67 62 57 72 67 62 57 72 67 62 57 53.0 50.4 47.8 43.4 55.6 52.8 50.1 45.5 44.1 58.1 55.3 52.4 47.6 46.1 60.7 57.7 54.7 49.6 48.1 56.9 53.9 49.0 47.5 56.1 53.2 48.3 46.8 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.8 2.8 2.7 2.8 2.7 2.8 2.8 2.8 2.8 2.7 2.8 2.8 2.8 2.7 2.8 2.7 2.8 2.7 26.5 32.3 38.1 43.4 28.7 36.
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718444-YTG-C-0712 DNZ048 (4.0 Ton) (Continued) Air on Evaporator Coil CFM 1000 1200 1400 1600 1750 1900 WB (°F) Net Capacity1 (MBh) Total Input (kW)2 90 77 72 67 62 77 72 67 62 57 77 72 67 62 57 77 72 67 62 57 72 67 62 57 72 67 62 57 46.0 42.3 38.7 36.1 46.8 43.1 39.4 36.7 37.4 47.7 43.9 40.1 37.4 38.1 48.6 44.7 40.9 38.1 38.8 44.5 40.7 38.0 38.7 44.4 40.6 37.8 38.5 4.7 4.7 4.6 4.6 4.7 4.7 4.6 4.6 4.6 4.7 4.7 4.6 4.6 4.6 4.7 4.7 4.6 4.6 4.6 4.7 4.6 4.6 4.6 4.6 4.6 4.6 4.6 20.1 29.2 38.4 36.
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718444-YTG-C-0712 DNZ060 (5.0 Ton) Air on Evaporator Coil CFM 1375 1500 1625 1750 1875 2000 WB (°F) Net Capacity1 (MBh) Total Input (kW)2 90 77 72 67 62 77 72 67 62 57 77 72 67 62 57 77 72 67 62 57 72 67 62 57 72 67 62 57 67.6 62.2 56.9 52.9 70.0 64.5 59.0 54.8 53.6 72.5 66.8 61.1 56.8 55.5 75.0 69.1 63.2 58.8 57.5 68.5 62.7 58.2 57.0 67.9 62.1 57.7 56.4 3.6 3.5 3.4 3.4 3.5 3.5 3.4 3.4 3.4 3.5 3.5 3.4 3.4 3.4 3.5 3.5 3.4 3.4 3.4 3.5 3.4 3.4 3.4 3.5 3.4 3.4 3.4 34.0 40.4 46.7 52.9 36.3 44.
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718444-YTG-C-0712 DNZ060 (5.0 Ton) (Continued) Air on Evaporator Coil CFM 1375 1500 1625 1750 1875 2000 WB (°F) Net Capacity1 (MBh) Total Input (kW)2 90 77 72 67 62 77 72 67 62 57 77 72 67 62 57 77 72 67 62 57 72 67 62 57 72 67 62 57 56.7 52.0 47.2 45.4 57.3 52.5 47.7 45.9 46.3 57.8 53.0 48.1 46.3 46.7 58.3 53.4 48.6 46.7 47.1 53.4 48.6 46.7 47.1 53.4 48.6 46.7 47.1 5.9 5.8 5.7 5.8 5.9 5.8 5.7 5.8 5.7 5.8 5.8 5.7 5.7 5.7 5.8 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 5.7 28.1 37.6 47.2 45.
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718444-YTG-C-0712 Airflow Performance Side Duct Application DNZ024-060 Size Model (Tons) 024 (2.0) DNZ 030 (2.5) DNZ 036 (3.0) DNZ 042 (3.5) DNZ 048 (4.0) DNZ 060 (5.
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718444-YTG-C-0712 Additional Static Resistance Size (Tons) Model 024 (2.0) DNZ 030 (2.5) DNZ 036 (3.0) DNZ 042 (3.5) DNZ 048 (4.0) DNZ 060 (5.0) DNZ CFM Wet Indoor Coil Economizer1 Filter/Frame Kit Electric Heat 500 600 700 800 900 1000 1100 1200 700 800 900 1000 1100 1200 1300 700 800 900 1000 1100 1200 1300 1400 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 0.01 0.01 0.01 0.02 0.
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718444-YTG-C-0712 Gas Heat Minimum Supply Air Supply Air (CFM) Size (Tons) Model 024 (2.0) DNZ 030 (2.5) DNZ 036 (3.0) DNZ 042 (3.5) DNZ 048 (4.0) DNZ 060 (5.
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718444-YTG-C-0712 Electrical Data DNZ024-060 Gas Heat Size (Tons) DNZ 024 (2.0) 030 (2.5) 036 (3.0) 042 (3.5) 048 (4.0) 060 (5.0) Volt Compressors (each) RLA LRA MCC OD Fan Motors (each) Supply Blower Motor FLA FLA MCA1 (Amps) Max Fuse2/ Breaker3 Size (Amps) 208/230-1-60 9.3 43 15 1.4 4.1 17.
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Johnson Controls Unitary Products 202/Y S COMPR 103/BR 227/BK 802/BK 102/Y PR BR BK 9 BL BK R (LOW) 220/BK 245/PR RED OUTDOOR FAN (HIGH) (MED/HIGH) (MED) (LOW/MED) C M P GAS VALVE 236/0 6 3 201/BR 203/BR 8 7 BLK P1 5 4 2 1 3 806/BR 225/Y 800/Y RC1 226/BL 801/BL B A 7 2 105/R 5 4 3 2 1 BK 1 M 230V C L G N BLK BR PV/MV MV PV 4 281/BR 3 124/BK 2 GRN 1 127/PR BLU BLK ALT GAS VALVE 105/BL RED 277/Y 110/BK 279/W RC2 ID_FAN DRAFT MOTOR
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202/Y 245/PR BLU YEL 222/R C 244/PR S COMPR 103/BR 227/BK 802/BK 102/Y PR BR BK 9 (LOW) 248/O 245/PR RED OUTDOOR FAN (HIGH) (MED/HIGH) (MED) (LOW/MED) HI C Y MV PV BL BK R GAS VALVE 236/0 6 3 201/BR 203/BR 8 7 BLK P1 5 4 2 1 3 806/BR 225/Y 800/Y RC1 226/BL 801/BL B A 7 2 105/R 5 4 3 2 1 R BK 1 M 230V C L G N BLK RED 4 281/BR 3 124/BK 2 GRN 1 127/PR BR 105/BL 277/Y 110/BK 279/W RC2 ID_FAN DRAFT MOTOR W FS IND H-IND COOL L1
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Johnson Controls Unitary Products L1 212/R C 244/PR BLU 105/BL T3 227/BK 802/BK L2 PR BR BK 228/BK,803/BK,804/BK 228/BK,803/BK,804/BK 123/BL 126/Y L3 T2 L3 9 BL BK R (LOW) 248/O 245/PR RED OUTDOOR FAN (HIGH) (MED/HIGH) (MED) (LOW/MED) C M P GAS VALVE 236/0 6 3 7 BLK 8 P1 5 4 CB 200/R 212/R 225/Y 800/Y 5 4 C L G 3 BLU BLK RED BLK 277/Y 110/BK 279/W RC2 226/BL 801/BL B A N 1 BK M 230V 2 806/BR 4 3 2 281/BR 124/BK GRN 1 127/PR PV/MV MV
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215/R 9 BL BK COMPR L2 227/BK 802/BK 126/Y PR BR BK R (LOW) 248/O 245/PR RED (MED) OUTDOOR FAN (HIGH) (MED/HIGH) 5 4 3 2 1 1 1 2 225/Y 800/Y BLK C L G N BLU BLK 202/Y 227/BK 802/BK PRP 136/BK 124/BK BR PV/MV MV PV ALT GAS VALVE TB1 B A RC2 7 2 4 281/BR 3 136/BK 2 GRN 1 127/PR RED 277/Y 110/BK 279/W 127/PR 131/PR 110/BK PR 226/BL 801/BL B A 105/BL 806/BR 226/BL,801/BL 229/BL,805/BL (SEE NOTE 6) LR (SEE NOTE 6) ID_FAN M 230V 3 ACST BK DRA
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718444-YTG-C-0712 Weights and Dimensions DNZ Unit Weights Unit 4 Point Load Weight "D" CENTER OF GRAVITY FRONT OF UNIT "C" "A" 49-1/8 X "B" Weight (lbs.) Center of Gravity Size Model (Tons) Shipping Operating X Y 024 DNZ 383 378 23.8 20 (2.0) 030 DNZ 403 398 24 20 (2.5) 036 DNZ 407 402 24 20 (3.0) 042 DNZ 465 460 22.7 21.3 (3.5) 048 DNZ 470 465 22.7 21.3 (4.0) 060 DNZ 485 480 23 21 (5.0) Johnson Controls Unitary Products 47-1/4 Y 4 Point Load Location (lbs.
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718444-YTG-C-0712 Gas Unit Dimensions VENT AIR OUTLET HOOD GAS SUPPLY 1-1/4" DIAMETER HOLE (1/2" NPTF CONNECTION) BLOWER SERVICE ACCESS COMPARTMENT PANEL CONDENSER COIL RIG HT UNIT CONDENSATE CONNECTION 3/4" NPTF (TRAP RECOMMENDED) HIGH VOLTAGE CONN. 1-3/8" DIA. KNOCKOUT A LE 2-3/8 FT B NT O FR 3-3/4 REFRIGERANT CONNECTIONS 2-1/2 COMBUSTION AIR INLET LOUVERS GAS SUPPLY 1-1/4" DIA. KNOCKOUT (1/2" NPTF CONNECTION) LOW VOLTAGE CONN.1-3/8" DIA.
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718444-YTG-C-0712 Unit Dimensions Front and Bottom HIGH VOLTAGE CONN. 1-3/32" DIA. KNOCKOUT 8-7/8 11-7/8 19-1/4 FRONT GAS SUPPLY 1-5/8" DIA. KNOCKOUT (1/2" NPTF CONNECTION) LOW VOLTAGE CONN. 7/8" DIA. KNOCKOUT LOW VOLTAGE CONN. 7/8" DIA. KNOCKOUT HIGH VOLTAGE CONN.
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718444-YTG-C-0712 Unit Typical Duct Applications ROOF CURB INSTALLATION REAR DUCT ROOF CURB INSTALLATION BOTTOM DUCT SLAB ON GROUND INSTALLATION Unit Typical Slab on Ground Installation (Gas Model Shown) TO POWER SUPPLY FIELD SUPPLIED DISCONNECT SWITCH LOCATED TO REAR OF UNIT CONTROL WIRING TO INDOOR THERMOSTAT RETURN AIR DUCT SUPPLY AIR DUCT TO GAS SUPPLY LINE MANUAL GAS SHUT-OFF VALVE 34 Johnson Controls Unitary Products
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718444-YTG-C-0712 Unit Typical Roof Curb Installation (Gas Model Shown) MANUAL GAS SHUT-OFF VALVE FIELD SUPPLIED DISCONNECT SWITCH MOUNTED ON UNIT TO POWER SUPPLY TO GAS SUPPLY LINE CONTROL WIRING TO INDOOR THERMOSTAT RETURN AIR DUCT SUPPLY AIR DUCT Unit Accessory Dimensions Roof Curb1 RECOMMENDED DUCT SIZE 17-1/2" x 16-3/4" 42-2/3 40-3/4 3-1/2 45-1/8 17-5/8 17-1/4 43-1/4 OPENING FOR RETURN AIR DUCT 22 OPENING FOR SUPPLY AIR DUCT 14 1 RECOMMENDED DUCT SIZE 17-1/8" x 21-1/2" 1.
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Roof Curb Cross Section 1" 3/4" x 1" WIDE GASKETING FOR CURB FRAME AND ALL DUCT SUPPORT SURFACES UNIT BASE UNIT BASE RAIL WOOD NAILER COUNTERFLASHING 8" MIN. ABOVE FINISHED ROOF 14" CANT STRIP CURB FRAME INSULATION AND ROOFING MATERIAL INSULATION ROOF DECK AND ROOFING MATERIAL Subject to change without notice. Printed in U.S.A. Copyright © 2012 by Johnson Controls, Inc. All rights reserved.