Johnson Controls Unitary Products Y32 Manuale utente

ISO 9001

Certified Quality

Management System

CONTENTS

NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 7

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

GAS HEATING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

GAS FURNACE OPERATING INSTRUCTIONS. . . 64

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

See the following pages for a complete Table of Contents.

NOTES, CAUTIONS AND WARNINGS

Installer should pay particular attention to the words: NOTE,

CAUTION, and WARNING. Notes are intended to clarify or

make the installation easier. Cautions are given to prevent

equipment damage. Warnings are given to alert installer

that personal injury and/or equipment damage may result if

installation procedure is not handled properly.

INSTALLATION

MANUAL

CAUTION: READ ALL SAFETY GUIDES BEFORE YOU

BEGIN TO INSTALL YOUR UNIT.

SAVE THIS MANUAL

MILLENNIUM™ ROOFTOP

25, 30 & 40 TON

523717-YIM-A-0509

MODELS: Y32

Y33

Y34

523717-YIM-A-0509

2Johnson Controls Unitary Products

TABLE OF CONTENTS

NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 7

NOTES, CAUTIONS AND WARNINGS. . . . . . . . . . . . . . . 7

GAS FIRED MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

WHAT TO DO IF YOU SMELL GAS . . . . . . . . . . . . . . . . . . . . . 7

ALL MODELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

LIMITATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

LOCATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

RIGGING AND HANDLING . . . . . . . . . . . . . . . . . . . . . . . 12

CLEARANCES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

AIR HOODS FOR FIXED OUTSIDE AIR

(UNITS WITH MANUAL ECONOMIZER) . . . . . . . . . . . . 13

AIR HOODS FOR ECONOMIZER . . . . . . . . . . . . . . . . . . 13

AIR HOODS FOR EXHAUST AIR . . . . . . . . . . . . . . . . . . 13

CONDENSATE DRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . 13

SERVICE ACCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

COMPRESSORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

THERMOSTAT (CONSTANT VOLUME UNITS) . . . . . . . 14

SPACE SENSOR (VARIABLE AIR VOLUME UNITS). . . 14

POWER AND CONTROL WIRING . . . . . . . . . . . . . . . . . 15

POWER WIRING DETAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

ERV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

GAS HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

GAS CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

VENT AND COMBUSTION AIR. . . . . . . . . . . . . . . . . . . . 17

ELECTRIC HEAT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

HOT WATER HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

STEAM HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

PIPING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

STATIC PRESSURE CONTROL PLASTIC TUBING . . . 20

EXHAUST STATIC PRESSURE . . . . . . . . . . . . . . . . . . . 20

CFM, STATIC PRESSURE, AND POWER - ALTITUDE

AND TEMPERATURE CORRECTIONS . . . . . . . . . . . . 45

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

COMPRESSOR ROTATION . . . . . . . . . . . . . . . . . . . . . . 59

SUPPLY AIR FAN INSTRUCTIONS . . . . . . . . . . . . . . . . 59

CHECK BLOWER BEARING SET SCREWS . . . . . . . . . . . . . 59

CHECKING SUPPLY AIR CFM . . . . . . . . . . . . . . . . . . . . . . . 59

FAN ROTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

BELT TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

AIR BALANCE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

CHECKING AIR QUANTITY . . . . . . . . . . . . . . . . . . . . . . . . . . 60

SUPPLY AIR DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . . 61

SYSTEM SETPOINTS. . . . . . . . . . . . . . . . . . . . . . . . . . . 61

CONSTANT VOLUME AND VARIABLE AIR VOLUME: . . . . . 61

GAS FURNACE OPERATING

INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

TO LIGHT THE MAIN BURNERS . . . . . . . . . . . . . . . . . . 64

TO SHUT DOWN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

POST-START CHECKLIST (GAS) . . . . . . . . . . . . . . . . . 64

MANIFOLD GAS PRESSURE ADJUSTMENT . . . . . . . . 64

BURNER INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . 65

ADJUSTMENT OF TEMPERATURE RISE . . . . . . . . . . . 65

CHECKING GAS INPUT . . . . . . . . . . . . . . . . . . . . . . . . . 65

NATURAL GAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

ELECTRIC HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

COOLING OPERATING INSTRUCTIONS . . . . . . . . . . . 66

COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

INTERNAL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

CONDENSER FANS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

REFRIGERATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . 66

COMPRESSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

MOTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

INDOOR BLOWER MOTORS. . . . . . . . . . . . . . . . . . . . . . . . . 66

POWER EXHAUST OR RETURN AIR FAN MOTORS . . . . . 67

CONDENSER FAN MOTORS . . . . . . . . . . . . . . . . . . . . . . . . 67

DRAFT MOTOR (GAS FURNACE). . . . . . . . . . . . . . . . . . . . . 67

GAS FURNACE SAFETY FEATURES . . . . . . . . . . . . . . 84

COMBUSTION AIR PROVING . . . . . . . . . . . . . . . . . . . . . . . . 84

ROLLOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

NORMAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . 84

FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

MOTORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

FAN DRIVES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

OUTDOOR COIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

GAS BURNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

TO CLEAN BURNERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

COMBUSTION AIR DISCHARGE. . . . . . . . . . . . . . . . . . . . . . 85

CLEANING FLUE PASSAGES AND HEATING ELEMENTS . 85

SECURE OWNERS APPROVAL . . . . . . . . . . . . . . . . . . 86

523717-YIM-A-0509

Johnson Controls Unitary Products 3

LIST OF FIGURES

Fig. # Pg. #

1 COMPONENT LOCATION. . . . . . . . . . . . . . . . . . . . . . . 6

2 TYPICAL RIGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . . . . . . 11

4 RECOMMENDED DRAIN PIPING . . . . . . . . . . . . . . . . 14

5 TYPICAL THERMOSTAT WIRING . . . . . . . . . . . . . . . 14

6 TYPICAL GAS PIPING CONNECTION . . . . . . . . . . . . 16

7 VENT AND COMBUSTION AIR HOODS. . . . . . . . . . . 17

8 CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

9 HOT WATER PIPING CROSS-SECTION . . . . . . . . . . 19

10 STEAM PIPING CROSS-SECTION . . . . . . . . . . . . . . . 19

11 BOTTOM SUPPLY AND RETURN . . . . . . . . . . . . . . . 21

12 END RETURN, BOTTOM SUPPLY . . . . . . . . . . . . . . . 22

13 BOTTOM RETURN, FRONT & REAR SUPPLY . . . . . 23

14 END RETURN, FRONT & REAR SUPPLY . . . . . . . . . 24

15 FIELD INSTALLED DISCONNECT . . . . . . . . . . . . . . . 43

16 PARTIAL ROOF CURB MODEL 1RC0455P . . . . . . . . 44

17 ALTITUDE/TEMPERATURE CONVERSION

FACTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

18 FAN PERFORMANCE - 25 TON . . . . . . . . . . . . . . . . . 48

19 FAN PERFORMANCE - 30 TON . . . . . . . . . . . . . . . . . 50

20 FAN PERFORMANCE - 40 TON . . . . . . . . . . . . . . . . . 52

21 POWER EXHAUST - ONE FORWARD CURVE

FAN - 25 TONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

22 POWER EXHAUST - TWO FORWARD CURVED

FANS - 30 & 40 TONS . . . . . . . . . . . . . . . . . . . . . . . . . 58

23 BELT TENSION ADJUSTMENT . . . . . . . . . . . . . . . . . 59

24 TYPICAL GAS VALVES . . . . . . . . . . . . . . . . . . . . . . . . 65

25 TYPICAL FLAME APPEARANCE . . . . . . . . . . . . . . . . 66

26 HOT WATER COIL - 25 & 30 TON, 1 ROW,

AT 10 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

27 HOT WATER COIL - 25 & 30 TON, 1 ROW,

AT 20 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Fig. # Pg. #

28 HOT WATER COIL - 25 & 30 TON, 1 ROW,

AT 30 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

29 HOT WATER COIL - 25 & 30 TON, 1 ROW,

AT 40 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

30 HOT WATER COIL - 25 & 30 TON, 2 ROW,

AT 60 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

31 HOT WATER COIL - 25 & 30 TON, 2 ROW,

AT 80 GPM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

32 HOT WATER COIL - 40 TON, 1 ROW, AT 10 GPM . . 73

33 HOT WATER COIL - 40 TON, 1 ROW, AT 20 GPM . . 73

34 HOT WATER COIL - 40 TON, 1 ROW, AT 30 GPM . . 74

35 HOT WATER COIL - 40 TON, 1 ROW, AT 40 GPM . . 74

36 HOT WATER COIL - 40 TON, 2 ROW, AT 20 GPM . . 75

37 HOT WATER COIL - 40 TON, 2 ROW, AT 40 GPM . . 75

38 HOT WATER COIL - 40 TON, 2 ROW, AT 60 GPM . . 76

39 HOT WATER COIL - 40 TON, 2 ROW, AT 80 GPM . . 76

40 STEAM COIL - 25 & 30 TON (1 ROW) . . . . . . . . . . . . 77

41 STEAM COIL - 40 TON (1 ROW) . . . . . . . . . . . . . . . . 77

42 TYPICAL CONTROL WIRING . . . . . . . . . . . . . . . . . . . 78

43 LEGEND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

44 TYPICAL 25 TON POWER WIRING . . . . . . . . . . . . . . 80

45 TYPICAL 30/40 TON POWER WIRING . . . . . . . . . . . 81

46 TYPICAL STANDARD GAS HEAT WIRING . . . . . . . . 82

47 TYPICAL MODULATING GAS HEAT WIRING . . . . . . 83

48 TYPICAL FLUE BAFFLE . . . . . . . . . . . . . . . . . . . . . . . 86

49 25 TON CHARGING CURVE . . . . . . . . . . . . . . . . . . . 87

50 30 TON CHARGING CURVE . . . . . . . . . . . . . . . . . . . 88

51 40 TON CHARGING CURVE . . . . . . . . . . . . . . . . . . . 89

52 PRESSURE DROP DRY EVAPORATOR COIL VS

SUPPLY AIR CFM - 25 TON . . . . . . . . . . . . . . . . . . . . 90

53 PRESSURE DROP DRY EVAPORATOR COIL VS

SUPPLY AIR CFM - 30 & 40 TON . . . . . . . . . . . . . . . 91

523717-YIM-A-0509

4Johnson Controls Unitary Products

LIST OF TABLES

Tbl. # Pg. #

1 COOLING & ELECTRICAL APPLICATION . . . . . . . . . . 8

2 COOLING & ELEC. APP. LIMITATIONS . . . . . . . . . . . . 8

3 STANDARD GAS HEATING CAPACITIES . . . . . . . . . . 9

4 TEMPERATURE RISE . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5 MINIMUM HEATING CFM . . . . . . . . . . . . . . . . . . . . . . . 9

6 MODULATING GAS HEATING CAPACITIES . . . . . . . . 9

7 MODULATING HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . 10

8 UNIT WEIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

9 SUPPLY FAN MOTOR VFD WEIGHTS . . . . . . . . . . . . 11

10 EXHAUST FAN MOTOR VFD WEIGHTS . . . . . . . . . . 11

11 UNIT CORNERWEIGHT . . . . . . . . . . . . . . . . . . . . . . . 12

12 UNIT CENTER OF GRAVITY . . . . . . . . . . . . . . . . . . . . 12

13 CONTROL WIRE SIZES . . . . . . . . . . . . . . . . . . . . . . . 14

14 PIPE SIZES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

15 GENERAL PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . 25

16 REFRIGERANT CHARGE . . . . . . . . . . . . . . . . . . . . . . 26

17 ELECTRICAL DATA 25 TON BASIC UNIT R22 . . . . . 26

18 ELECTRICAL DATA 30 TON BASIC UNIT R22 . . . . . 27

19 ELECTRICAL DATA 40 TON BASIC UNIT R22 . . . . . 27

20 ELECTRICAL DATA 25 TON WITH ELECTRIC

HEAT R22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

21 ELECTRICAL DATA 30 TON WITH ELECTRIC

HEAT R22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

22 ELECTRICAL DATA 40 TON WITH ELECTRIC

HEAT R22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

23 ELECTRICAL DATA 25 TON WITH POWER

EXHAUST R22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

24 ELECTRICAL DATA 30 TON WITH POWER

EXHAUST R22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

25 ELECTRICAL DATA 40 TON WITH POWER

EXHAUST R22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

26 ELECTRICAL DATA 25 TON WITH ELECTRIC HEAT

AND POWER EXHAUST R22 . . . . . . . . . . . . . . . . . . . 34

27 ELECTRICAL DATA 30 TON WITH ELECTRIC HEAT

AND POWER EXHAUST R22 . . . . . . . . . . . . . . . . . . . 37

28 ELECTRICAL DATA 40 TON WITH ELECTRIC HEAT

AND POWER EXHAUST R22 . . . . . . . . . . . . . . . . . . . 40

29 ALTITUDE CORRECTION FACTORS . . . . . . . . . . . . . 45

30 FAN PERFORMANCE - 25 TON . . . . . . . . . . . . . . . . 47

Tbl. # Pg. #

31 FAN PERFORMANCE - 30 TON . . . . . . . . . . . . . . . . 49

32 FAN PERFORMANCE - 40 TON . . . . . . . . . . . . . . . . . 51

33 COMPONENT STATIC RESISTANCE . . . . . . . . . . . . 53

34 SUPPLY FAN MOTOR AND DRIVE DATA . . . . . . . . . 54

35 EXHAUST FAN DRIVE DATA . . . . . . . . . . . . . . . . . . . 54

36 POWER EXHAUST - ONE FORWARD CURVED

FAN 25 TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

37 POWER EXHAUST - TWO FORWARD CURVED

FANS - 30 & 40 TON . . . . . . . . . . . . . . . . . . . . . . . . . . 57

38 BELT ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . 60

39 BLOWER SPEED RATE OF CHANGE . . . . . . . . . . . . 61

40 25 TON DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . 62

41 30 TON DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . 62

42 40 TON DRIVE ADJUSTMENT . . . . . . . . . . . . . . . . . . 63

43 DRIVE ADJUSTMENT FOR POWER EXHAUST

- 25 TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

44 DRIVE ADJUSTMENT FOR POWER EXHAUST

- 30 & 40 TON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

45 GAS RATE - CUBIC FEET PER HOUR. . . . . . . . . . . . 66

46 SYSTEM MOISTURE INDICATOR . . . . . . . . . . . . . . . 66

47 STEAM COIL (1 ROW, 25 & 30 TON) . . . . . . . . . . . . . 67

48 STEAM COIL (1 ROW, 40 TON) . . . . . . . . . . . . . . . . . 67

49 STATIC RESISTANCE STEAM COIL

(25 & 30 TON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

50 STATIC RESISTANCE STEAM COIL (40 TON) . . . . . 67

51 HOT WATER COIL (1 ROW 25 & 30 TON) . . . . . . . . . 67

52 HOT WATER COIL (1 ROW, 40 TON). . . . . . . . . . . . . 68

53 WATER PRESSURE DROP (1 ROW, 25 & 30 TON) . 68

54 WATER PRESSURE DROP (1 ROW, 40 TONS) . . . . 68

55 HOT WATER COIL (2 ROW, 25 & 30 TON) . . . . . . . . 68

56 WATER PRESSURE DROP (2 ROW, 25 & 30 TON) . 69

57 WATER PRESSURE DROP (2 ROW, 40 TON) . . . . . 69

58 STATIC RESISTANCE HOT WATER COIL

(25 & 30 TON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

59 STATIC RESISTANCE HOT WATER COIL

(40 TON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

60 INDOOR BLOWER BEARING LUBRICATION

SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

523717-YIM-A-0509

Johnson Controls Unitary Products 5

NOMENCLATURE

123 4

CONTROL

ADDITIONAL

D = SYNTHESYS CONTROL

CONFIGURATION

VOLTAGE

E = SYNTHESYS CONTROL,

OPTIONS

2 = 208/230-60

DISC., 110V OUTLET

Cu/Cu Condenser Coil

3 = 380-60

F = SYNTHESYS, DISC.

Cu/Cu Evaporator Coil

4 = 460-60 Exhaust VFD (Customer)

5 = 575-60 H = SIMPLICITY CONTROL (see notes 3 & 7)

7 = 380/415-50 I = SIMPLICITY CONTROL, DISC

NOTES:

110V OUTLET

1. 108KW not available with 208/230V.

J = SIMPLICITY CONTROL,

* Premium Cabinet (6 doors)

2. Standard efficiency motor meets Canadian

DISC, NO 110V OUTLET

* Standard Cabinet (4 doors)

ID BLOWER

(See note 4)

minimum efficiency regulations mandated

* Drain Pan - powder coat

in Canadian Energy Efficiency Regulations.

* Drain Pan - stainless steel

3. (VFD-CUSTOMER) = Wired for VFD

DISC, 110V OUTLET

only; VFD will be customer supplied and

* must make selections

field installed. If VFD Exh is also

DISC, NO 110V OUTLET

N = YCCS CONTROL

P = YCCS CONTROL W/DISC., 110V OUTLET

Q = YCCS ZONING CONTROL

R = YCCS ZONING CONTROL W/DISC.,

110V OUTLET

S = YCCS - VAV CONTROL

T = YCCS - VAV CONTROL W/DISC.,

110V OUTLET

in these options

specified, it will also be cust supplied.

4. VAV ID Blower requires hot gas bypass .

5. Power exhaust and barometric relief not

available in end return configuration.

CONFIGURATION

6. Air foil fan available on cooling only.

A = 1,2 1 - BOTTOM RETURN

Contact engineering for

B = 1,4 2 - BOTTOM SUPPLY

air foil applications.

C = 1,5 3 - END RETURN

(5)

Air Volume

7. Only available with Hi EFF motors

ECONOMIZER

D = 3,2 4 - REAR SUPPLY

a = CV

A = DUAL ENTH Low leak type

E = 3,4 5 - FRONT SUPPLY

b = VAV (VFD-FACTORY INSTALLED)

B = SINGLE ENTH Low leak type

F = 3,5

c = BYPASS FACTORY VFD

C = DRY BULB ENTH Low leak type

FRONT SUPPLY - COOLING ONLY

d = VAV (VFD-CUSTOMER)

(3)

D = MANUAL Low leak (Not w/PE)

HOT WATER, STEAM & ELECTRIC HEAT -

Fan (See note 6)

E = NONE

BOTTOM SUPPLY ONLY

e = FORWARD CURVE FAN Class I

B = 2,3,5,7 M = 1,3,6,8 X = 2,4,0,7

F = DUAL ENTH Std type

GAS HEAT - BOTTOM OR REAR SUPPLY ONLY

f = FORWARD CURVE FAN Class II

C = 1,4,5,7 N = 2,3,6,8 Y = 1,3,9,8

G = SINGLE ENTH Std type

g = AIR FOIL FAN [always Class II]

D = 2,4,5,7 O = 1,4,6,8 Z = 2,3,9,8

H = DRY BULB Std type

HEAT SOURCE

E = 1,3,6,7 P = 2,4,6,8 2 = 2,4,9,8

N = NATURAL GAS

Blower Mount

F = 2,3,6,7 Q = 1,3,9,7 3 = 1,3,0,8

S = NATURAL GAS, SS HEAT EXCHANGER

h = Neoprene

G = 1,4,6,7 R = 2,3,9,7 4 = 2,3,0,8

EXHAUST

(See note 5)

D = NATURAL GAS, MODULATING HEAT*

i = 1 inch deflection spring

H = 2,4,6,7 S = 1,4,9,7 5 = 1,4,0,8

A = BARO J = 2, 5 S = A, 3

T = NATURAL GAS, MODULATING HEAT, SS *

j = 2 inch deflection spring

I = 1,3,5,8 T = 2,4,9,7 6 = 2,4,0,8

B = 1, 3 K = 2, 6 T = A, 4

HEAT EXCHANGE

J = 2,3,5,8 U = 1,3,0,7 7 = 1,4,9,8

C = 1, 4 L = 2, 7 U = A, 5

E = ELECTRIC HEAT

K = 1,4,5,8 V = 2,3,0,7

D = 1, 5 M = 2, 8 V = A, 6

C = COOLING ONLY

9 = Non-Std

E = 1, 6 N = NONE W = A, 7

W = HOT WATER COIL

ID MOTOR

(See note 2)

F = 1, 7 O = 1, 9 X = A, 8

X = STEAM COIL

1 = 10 HP STD

Condenser Coil Head Press. Ctrl.

G = 1, 8 P = 1, 0 Y = A, 9

2 = 15 HP STD

1 = STANDARD 7 = YES

H = 2, 3 Q = 2, 9 Z = A, 0

3 = 20 HP STD

2 = TECHNICOAT 8 = NO

I = 2, 4 R = 2, 0 2 = 8,000 CFM ERV

HEAT CAPACITY

4 = 25 HP STD (Except 25T)

Piping

(See note 4)

3 = 13,000 CFM ERV

3 = 267 MBH

5 = 10 HI-EFF

3 = STANDARD 4 = HOT GAS BYPASS

5 = 533 MBH

6 = 15 HI-EFF

Evaporator Coil

9 = Non Std Config

8 = 800 MBH (40T ONLY)

7 = 20 HI-EFF

5 = STANDARD

Power Exhaust

4 = 40 KW

8 = 25 HI-EFF (Except 25T)

6 = HI-CAP (30T/40T R22 ONLY)

1 = MODULATING DAMPERS A = VFD MODULATING

MOTOR

8 = 80 KW

9 = 7.5 HP STD (25T Only)

9 = STD W/TECHNICOAT

2 = NON-MOD. (ON/OFF)

1 = 108 KW

(1)

0 = 7.5 HI-EFF (25T Only)

0 = HI-CAP W/T-COAT (30T/40T R22)

0 (ZERO) NO HEAT

Motor

1 = 1 ROW

0 = 5 HP HI-EFF (25T Only) 9 = 5 HP (25T Only)

2 = 2 ROW

3 = 7.5 HP 6 = 7.5 HP HI-EFF

1 = 1 ROW

4 = 10 HP 7 = 10 HP HI-EFF

5 = 15 HP (Except 25 Ton) 8 = 15 HP HI-EFF (Except 25 Ton)

Config

W = 1,4,0,7

PACKAGE

FILTERS

GENERATION

Y = York Brand R22

A = STAND.

B = 65%

C = 95%

D = 2" HI-EFF

A = 1,3,5,7

REFRIGERATION

(30T/40T)

3 = 30 TON

4 = 40 TON

2 = 25 TON

L = 2,4,5,8

BASIC UNIT

Class I blower is limited to 15HP in 25/30Ton

Class I blower is limited to 20HP in 40Ton

Class II blowers are not HP limited

A = A, F, I L = D, G, J W = D, E, J

B = A, G, I M = B, F, I X = D, F, H

C = A, F, J N = B, F, J Y = B, E, H

D = A, G, J O = B, G, I Z = B, E, I

E = A, E, H P = B, G, J 2 = B, E, J

F = A, E, I Q = C, F, I 3 = B, F, H

G = A, E, J R = C, F, J 4 = C, E, H

H = A, F, H S = C, G, I 6 = C, E, I

I = D, F, I T = C, G, J 7 = C, E, J

J = D, F, J U = D, E, H 8 = C, F, H

9 = D, G, H

K = D, G, I V = D, E, I

K = SIMPLICITY CONTROL W/SIMPLICITY LINC

L = SIMPLICITY CONTROL W/SIMPLICITY LINC

M = SIMPLICITY CONTROL W/SIMPLICITY LINC

523717-YIM-A-0509

6Johnson Controls Unitary Products

FIGURE 1 - COMPONENT LOCATION

FILTER ACCESS

EVAPORATOR COIL

AND DRAINPAN ACCESS

POWER & CONTROL WIRING

COMPRESSOR ACCESS

HEAT SECTION

POWER EXHAUST ACCESS

FILTER ACCESS

EVAPORATOR COIL

AND DRAINPAN ACCESS

HEAT SECTION

SUPPLY BLOWER & MOTOR

FILTER DRIERS

RIGHT

END

LEFT END

FRONT

REAR

OPTIONAL POWER

OUTLET (115V)

523717-YIM-A-0509

Johnson Controls Unitary Products 7

GENERAL

York Model Y32/Y33/Y34 units are single package cooling

only or cooling with gas, electric, hot water or steam heating

designed for outdoor installation on a rooftop and for non-res-

idential use.

The units are completely assembled on rigid, permanently

attached base rails. All piping, refrigerant charge, and electri-

cal wiring is factory installed and tested. The units require

electric power, gas, steam, or hot water connections and duct

connections. Gas fired units also require installation of a flue

gas outlet hood.

SAFETY CONSIDERATIONS

NOTES, CAUTIONS AND WARNINGS

Installer should pay particular attention to the words: NOTE,

CAUTION, and WARNING. Notes are intended to clarify or

make the installation easier. Cautions are given to prevent

equipment damage. Warnings are given to alert installer that

personal injury and/or equipment damage may result if instal-

lation procedure is not handled properly.

GAS FIRED MODELS

DO NOT store or use gasoline or other flammable vapors and

liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance. Do not touch any electrical

switch. Do not use any phone in your building. Immediately

call your gas supplier from a neighbor’s phone. Follow the

gas supplier’s instructions. If you cannot reach your gas sup-

plier, call the fire department.

ALL MODELS

Installation and servicing of air conditioning equipment can

be hazardous due to system pressure and electrical compo-

nents. Only trained and qualified service personnel should

install, repair or service air conditioning equipment.

Untrained personnel can perform basic maintenance func-

tions of cleaning coils and filters and replacing filters. All other

operations should be performed by trained service personnel.

When working on air conditioning equipment, observe pre-

cautions in the literature, tags and labels attached to the unit

and other safety precautions that may apply.

Follow all safety codes, including ANSI Z223.1-Latest Edi-

tion: wear safety glasses and work gloves; use quenching

cloth for unbrazing operations; have fire extinguisher avail-

able for all brazing operations.

INSPECTION

As soon as a unit is received, it should be inspected for possi-

ble damage during transit. If damage is evident, the extent of

damage should be noted on the carrier’s freight bill. A sepa-

rate request for inspection by the carrier’s agent should be

made in writing.

The furnace and its individual shut-off valve must

be disconnected from the gas supply piping sys-

tem during any pressure testing of that system at

test pressures in excess of 0.5 psig. Pressures

greater than 0.5 will cause gas valve damage

resulting in a hazardous condition. If gas valve is

subjected to a pressure greater than 0.5 psig, it

must be replaced. The furnace must be isolated

from the gas supply piping system by closing its

individual manual shut-off valve during any pres-

sure testing of that system at test pressures equal

to or less than 0.5 psig.

This Furnace is not to be used for temporary heat-

ing of buildings or structures under construction.

Before performing service or maintenance opera-

tions on unit, turn off main power switch to unit.

Electrical shock could cause personal injury.

Improper installation, adjustment, alteration, ser-

vice or maintenance can cause injury or property

damage. Refer to this manual. For assistance or

additional information consult a qualified installer,

service agency or the gas supplier.

523717-YIM-A-0509

8Johnson Controls Unitary Products

REFERENCE

Additional information is available in the following reference

form:

• 246653 - Technical Guide

APPROVALS

Designed certified by CSA, ETL, CETL as follows:

1. For use as a forced air furnace with cooling unit (gas

heat models).

2. For outdoor installation only.

3. For installation on combustible material and may be

installed directly on combustible flooring or Class A,

Class B or Class C roof covering materials.

4. For use with natural gas (convertible to LP with kit).

Not suitable for use with conventional venting systems.

INSTALLATION

LIMITATIONS

The installation of this unit must conform to local building

codes, or in the absence of local codes, with ANSI Z223.1

Natural Fuel Gas Code and /or CAN/CGA B149 installation

codes.

In U.S.A.:

1. National Electrical Code ANSI/NFPA No. 70-Latest Edi-

tion.

2. National Fuel Gas Code Z223.1-Latest Edition.

3. Gas-Fired Central Furnace Standard ANSI Z21.47-Lat-

est Edition.

4. Local gas utility requirements.

Refer to Table 1 for Cooling and Electrical Application Data

and to Table 2 for Gas Heat Application Data.

After installation, gas fired units must be adjusted to obtain a

temperature rise within the range specified on the unit rating

plate.

If components are to be added to a unit to meet local codes,

they are to be installed at the contractor's and/or the cus-

tomer's expense.

Size of unit for proposed installation should be based on heat

loss / heat gain calculation made according to the methods of

the Air Conditioning Contractors of America (ACCA).

LOCATION

Use the following guidelines to select a suitable location for

these units:

1. Unit is designed for outdoor installation only.

2. Condenser coils must have an unlimited supply of air.

Where a choice of location is possible, position the unit

on either north or east side of building.

3. Suitable for roof mount on curb.

4. Roof structures must be able to support the weight of the

unit and its accessories. Unit must be installed on a solid

level roof curb or appropriate angle iron frame.

5. Maintain level tolerance to 3/4 inches across width and 2

inches along length.

TABLE 1: COOLING & ELECTRICAL APPLICATION

UNIT POWER

SUPPLY

VOLTAGE VARIATIONS

MIN. VOLTS MAX VOLTS

575-3-60 540 630

208/230-3-60 187 252

460-3-60 432 504

TABLE 2: COOLING & ELEC. APP. LIMITATIONS

LIMITATIONS

MODEL

Y32 Y33 Y34

Supply Air CFM

(min./max)

6,000-

12,5000

6,000-

15,000

8,000-

20,000

Entering Wet Bulb

Temp (F°) (min./max) 57/75 57/75 57/75

Ambient Temp 40/125 40/125 40/125

Min. Air Temperature on Gas Fired Heat Exchangers (°F)

Aluminized 25 25 25

Stainless 000

523717-YIM-A-0509

Johnson Controls Unitary Products 9

TABLE 3: STANDARD GAS HEATING CAPACITIES

GAS HEAT

OPTION

AVAILABLE ON

MODELS

INPUT CAPACITY (MBH)1

1. Heating capacity is only staged on CV models. VAV models use only one stage at full capacity.

OUTPUT

CAPACITY

(MBH)2

2. Blower motor heat not included.

GAS RATE, CU. FT./HR.3

3. Based on a heat content of 1075 Btu/Ft.3

1ST STAGE TOTAL 1ST STAGE TOTAL

N3 Y32/Y33/Y34 267 267 213 247 247

N5 Y32/Y33/Y34 267 533 426 247 495

N8 Y34 ONLY 2674

4. Unit Control Board with 3 heating outputs only. For all other Unit Control Boards the 1st Stage is 533 MBH.

800 638 247 742

TABLE 4: TEMPERATURE RISE

TON

MODULES

123

25 5-35 25-55 -

30 5-35 20-50 -

40 5-30 10-45 25-55

TABLE 5: MINIMUM HEATING CFM

TON

MODULES

123

25 5,644 7,183 -

30 5,644 7,901 -

40 6,584 8,779 13,169

TABLE 6: MODULATING GAS HEATING CAPACITIES

GAS HEAT OPTION AVAILABLE ON

MODELS

INPUT CAPACITY (MBH)

STEPS OUTPUT CAPACITY

(MBH)1

1. Output Capacity at Full Fire.

GAS RATE, CU. FT./HR.

MINIMUM MAXIMUM MINIMUM MAXIMUM

D32

2. Modulating Gas Heat available on CV models only.

Y32/Y33/Y34 69 267 6 213 64 247

D52Y32/Y33/Y34 69 533 12 426 64 495

D82Y34 ONLY 69 800 17 638 64 744

523717-YIM-A-0509

10 Johnson Controls Unitary Products

FIGURE 2 - TYPICAL RIGGING

TABLE 7: MODULATING HEAT

STAGES OF GAS CONTROL (% OF FULL HEAT OUTPUT)

GAS HEAT OPTION AVAILABLE ON MODELS STEP INPUT OUTPUT % OF TOTAL OUTPUT

(Turn down ratio

3.8 to 1)

Y32, Y33, Y34

1 69,333 55,466 26%

2 106,666 85,333 40%

3 165,332 132,266 62%

4 202,665 162,132 76%

5 229,332 183,466 86%

6 266,666 213,333 100%

(Turn down ratio

7.7 to 1)

Y32, Y33, Y34

1 69,333 55,466 13%

2 106,666 85,333 20%

3 165,332 132,266 31%

4 202,665 162,132 38%

5 229,332 183,466 43%

6 266,666 213,333 50%

7 325,331 260,265 61%

8 362,664 290,132 68%

9 389,331 311,465 73%

10 426,664 341,331 80%

11 495,997 396,798 93%

12 533,330 426,664 100%

(Turn down ratio

11.5 to 1)

Y34 Only

1 69,333 55,466 9%

2 106,666 85,333 13%

3 165,332 132,266 21%

4 202,665 162,132 25%

5 229,332 183,466 29%

6 266,666 213,333 33%

7 325,331 260,265 41%

8 362,664 290,132 45%

9 389,331 311,465 49%

10 426,664 341,331 53%

11 495,997 396,798 62%

12 533,330 426,664 67%

13 586,663 469,330 73%

14 655,996 524,797 82%

15 693,329 554,663 87%

16 762,662 610,130 95%

17 799,995 639,996 100%

If a unit is to be installed on a roof curb other than a

York roof curb, gasketing must be applied to all sur-

faces that come in contact with the unit underside.

If a unit is to be installed on an angle iron frame it is

recommended that it be sized to allow the bottom

rail to overhang to facilitate installation of conden-

sate drains (see Fig. 4).

RIGGING:

(1) RIG WITH SIX CABLES AND THREE SPREADER

BARS AT LEAST 98” ACROSS THE WIDTH OF THE UNIT.

(2) CENTER OF GRAVITY INCLUDES ECONOMIZER

AND POWER EXHAUST.

ALL PANELS MUST BE SECURED IN

PLACE WHEN THE UNIT IS LIFTED.

CABLES

SPREADER BARS

(3 PLACES)

27”

32”

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