User Manuals: York MILLENNIUM Y24 Air Conditioner

Manuals and User Guides for York MILLENNIUM Y24 Air Conditioner. We have 1 York MILLENNIUM Y24 Air Conditioner manual available for free PDF download: Installation Manual

York MILLENNIUM Y24 Installation Manual (140 pages)

25, 30 & 40 TON

Brand: York | Category: Air Conditioner | Size: 4 MB

Table of Contents
2
Nomenclature
6
Component Location
7
General
8
Safety Considerations
8
Notes, Cautions and Warnings
8
Gas Fired Models
8
What to Do if You Smell Gas
8
All Models
8
Inspection
8
Reference
9
Approvals
9
Installation
9
Limitations
9
Location
9
Cooling & Electrical Application
9
Cooling & Elec. App. Limitations
9
Typical Rigging
10
Gas Application Data
10
Center of Gravity
11
Unit Weights
11
Supply Fan Motor Vfd Weights
11
Exhaust Fan Motor Vfd Weights
11
Rigging and Handling
12
Clearances
12
Unit Cornerweight
12
Unit Center of Gravity
12
Ductwork
13
Air Hoods for Fixed Outside Air (Units Without 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
Recommended Drain Piping
14
Typical Thermostat Wiring
14
Control Wire Sizes
14
Power and Control Wiring
15
Power Wiring Detail
15
Erv
15
Gas Heating
16
Gas Piping
16
Gas Connection
16
Typical Gas Piping Connection
16
Pipe Sizes
16
Vent and Combustion Air
17
233 & 466 Mbh Heat
17
Vent and Combustion Air Hoods
17
699 Mbh Heat Vent
17
Flue Extension
17
Electric Heat
18
Hot Water Heat
18
Clearances
18
Piping Connections
19
Steam Heat
19
Hot Water Piping Cross-Section
19
Steam Piping Cross-Section
19
Piping Connections
20
Static Pressure Control Plastic Tubing
20
Exhaust Static Pressure
20
Electrical Data Basic Unit - 25 Ton
22
Electrical Data Basic Unit - 30 Ton
23
Electrical Data Basic Unit - 40 Ton
23
Electrical Data Basic Unit with Electric Heat - 25 Ton
24
Electrical Data Basic Unit with Electric Heat - 30 Ton
25
Electrical Data Basic Unit with Electric Heat - 40 Ton
26
Electrical Data Basic Unit with Power Exhaust - 25 Ton
27
Electrical Data Basic Unit with Power Exhaust - 30 Ton
28
Electrical Data Basic Unit with Power Exhaust - 40 Ton
29
Electrical Data Basic Unit W/ Power Exhaust & Electric Heat - 25 Ton
30
Electrical Data Basic Unit W/ Power Exhaust & Electric Heat - 30 Ton
33
Electrical Data Basic Unit W/ Power Exhaust & Electric Heat - 40 Ton
36
Bottom Supply and Return
39
End Return, Bottom Supply
40
Bottom Return, Front & Rear Supply
41
End Return, Front & Rear Supply
42
Field Installed Disconnect
43
Partial Roof Curb Model 1Rc0455P
44
Full Roof Curb Model 1Rc0455F
45
Cfm, Static Pressure, and Power - Altitude and Temperature Corrections
46
Altitude/Temperature Conversion Factor 47 21 Fan Performance - 25 Ton
50
Fan Performance - 25 Ton
50
Fan Performance - 30 Ton
53
Fan Performance - 40 Ton
56
Supply Fan Motor and Drive Data
58
Power Exhaust - One Forward Curved Fan
59
Power Exhaust - One Forward Curve Fan
60
Tons
60
Power Exhaust - Two Forward Curved Fans - 30 & 40 Tons
62
Power Exhaust - Two Forward Curved
62
Start-Up
63
Compressor Rotation
63
Supply Air Fan Instructions
63
Check Blower Bearing Set Screws
63
Checking Supply Air Cfm
63
Fan Rotation
63
Belt Tension
63
Air Balance
63
Checking Air Quantity
63
Belt Tension Adjustment
63
Supply Air Drive Adjustment
65
System Setpoints
65
Constant Volume and Variable Air Volume
65
Drive Adjustment for Power Exhaust
67
Gas Furnace Operating Instructions
68
To Light the Main Burners
68
To Shut down
68
Post-Start Checklist (Gas)
68
Manifold Gas Pressure Adjustment
68
Drive Adjustment for Power Exhaust
68
Burner Instructions
69
Adjustment of Temperature Rise
69
Checking Gas Input
69
Natural Gas
69
Typical Gas Valve
69
Electric Heating
70
Cooling Operating Instructions
70
Compressor
70
Internal Wiring
70
Condenser Fans
70
Millennium Sequence of Operation
70
Overview
70
Typical Flame Appearance
70
Run Sequence
71
Unit Controls Sequence
71
Cooling Stage
71
Schedule
71
Variable Air Volume Unit (Vfd & Igv)
73
Overview
73
Occupied / Unoccupied / Morning Warm-Up
73
Occupied
73
Unoccupied
73
Morning Warm-Up [Mwup]
74
Unit Controls
74
Head Pressure Control
77
Description
77
Sequence of Operation - for Head Pressure Control
77
Intelli-Start
77
Lead Lag
77
Devices and Rules
77
Air Proving Switch
78
Fan Delays
78
Comfort Ventilation Mode
78
Comfort Ventilation Economizer Control
78
Economizer Control During Comfort Ventilation
79
Staging Control During Comfort Ventilation
79
Hydronic Heat
80
Cooling Lockout on Oat
80
Water Coil Freeze Stat (Fsi)
80
CV Operation
80
Thermostat Operation for Cooling with Y1, Y2, Y3 and Y4 Inputs
80
Grouping Compressors into Stages
81
Economizer Mode
81
Operation for Heating with W1, W2, and W3
81
Inputs
81
Supply Fan off Delay
81
Heat Stage Delays
81
Thermostat Operation with Hydronic Heat
81
Sensor Operation
81
Types of Space Sensors
81
Supply Fan Control When Using a Zone Sensor
82
Supply Fan off Delay
82
Control of Compressors When Using a Zone Sensor
82
Heating Operation with the Sensor Option
82
Cooling Operation with the Sensor Option
82
Vav Operation
83
Vav Operation with a Thermostat
83
Vav Operation with a Zone Sensor
83
Standalone Vav Operation
83
Supply Fan off Delay
83
Occupied Heating with a Thermostat
83
Unoccupied Heating with a Thermostat
84
Occupied Cooling with a Thermostat
84
Unoccupied Cooling with a Thermostat
84
Occupied Heating with a Space Sensor
84
Unoccupied Heating with a Space Sensor
84
Occupied Cooling with a Space Sensor
84
Unoccupied Cooling with a Space Sensor
84
Unoccupied Heating in Standalone Operation
85
Occupied Cooling in Standalone Operation
85
Supply Duct Pressure Control Algorithm
85
Morning Warm up / Vav Occupied Heating Control Algorithm
85
Starting Morning Warm up
85
Morning Warm up / Vav Occupied Heating Function
85
Sat Control Band
85
Unoccupied Vav Heating / Cooling Control Algorithm with a Space Sensor
86
Occupied Vav Heating / Cooling Control Algorithm with a Space Sensor
86
Holiday Schedule
86
Controlling Excessive Sat (Supply Air Temperature)
87
Sat Control Configuration
87
Sat Control for Cooling
87
Economizer Loading Operation During an Excessive Sat for Cooling
87
CV Economizer Operation
87
Sat Setpoints Used During Cooling with Economizer Operation
87
Demand Ventilation
90
Exhaust Operation
91
Two-Position Control (Non Modulating Power Exhaust)
91
Proportional Control (Fan with Modulating Exhaust Air Damper (Ead) Controlled from Building Static Pressure)
91
Proportional Control with Vfd Fan
92
Two-Position Control (Power Exhaust with Barometric Relief, Controlled from Building Static Pressure)
92
Erv
92
Scheduling Operation
92
Compressor Status Monitoring
92
Troubleshooting a Millennium Simplicity Control
95
Status Led Chart
95
Failure Modes and Default Operation
95
Error Histories
95
Sensor Failures and Default Operation
95
Sat Sensor
95
Rat Sensor
95
Oat Sensor
95
Outside Air Relative Humidity Sensor
95
Return Air Relative Humidity Sensor
95
Space Temperature Sensor
96
Building Pressure Sensor
96
Duct Static Pressure Sensor
96
Iaq Sensor
96
System Errors
96
Heating Sat Failure
96
Cooling Sat Failure
96
Supply Fan Failure
96
Compressor Safety Chain Trip
96
Dirty Filter Alarm
96
Diagnostics Via Led
97
Error History
97
Simplicity Controller
97
Simplicity Controls Push Buttons
97
Digital Lingo
98
The Pi Algorithm
98
Analog to Digital Converter
98
Software Terminology
98
Communications Bus
99
Optional Modlinc Translator
99
Overview
99
Component Description
99
The Simplicity Controller
99
Wiring and Termination, Communications
100
Communication Address
100
Acronyms
100
Inputs
100
Analog Inputs (Ai)
101
Binary Inputs (Bi)
102
Outputs
102
Vfd Control Wiring
102
Input Signal to Y1 Actuator Position
102
Binary Outputs (Bo)
103
H1-3 - Heat Stages 1 to 3 [Optional]
103
Simplicity Control Inputs
103
Simplicity Control Outputs
105
Simplicity Programming Options
106
Interacting through the Millennium Simplicity
106
Set the Clock
106
Parameter Setting
106
Initial Startup Options
106
Metric Operation (English)
106
Settable System Parameters
106
Sequence of Setting the Set Points
109
Settable System Parameters
112
Service
114
Refrigeration System
114
Compressors
114
Motors
114
Indoor Blower Motors
114
Power Exhaust or Return Air Fan Motors
114
Condenser Fan Motors
114
Draft Motor (Gas Furnace)
114
Ton
115
Static Resistance Steam Coil
115
Hot Water Coil (1 Row, 40 Ton)
116
Water Pressure Drop
116
30 Ton)
116
Ton
117
(25 & 30 Ton)
117
Water Pressure Drop
117
Static Resistance Hot Water Coil
117
(40 Ton)
117
Hot Water Coil - 25 & 30 Ton, 1 Row, at 10 Gpm
118
Hot Water Coil - 25 & 30 Ton, 1 Row, at 20 Gpm
118
Hot Water Coil - 25 & 30 Ton, 1 Row, at 30 Gpm
119
Hot Water Coil - 25 & 30 Ton, 1 Row, at 40 Gpm
119
Hot Water Coil - 25 & 30 Ton, 2 Row, at 60 Gpm
120
Pg. # 41 HOT WATER COIL - 25 & 30 TON, 2 ROW, at 80 GPM
120
Hot Water Coil - 40 Ton, 1 Row, at 10 Gpm
121
Hot Water Coil - 40 Ton, 1 Row, at 20 Gpm
121
Hot Water Coil - 40 Ton, 1 Row, at 30 Gpm
122
Hot Water Coil - 40 Ton, 1 Row, at 40 Gpm
122
Hot Water Coil - 40 Ton, 2 Row, at 20 Gpm
123
Hot Water Coil - 40 Ton, 2 Row, at 40 Gpm
123
Hot Water Coil - 40 Ton, 2 Row, at 60 Gpm
124
Hot Water Coil - 40 Ton, 2 Row, at 80 Gpm . 124 50 Steam Coil - 25 & 30 Ton (1 Row)
125
Steam Coil - 40 Ton (1 Row)
125
Typical Control Wiring
126
Legend
127
Typical 25 Ton Power Wiring
128
Typical 30/40 Ton Power Wiring
129
Typical Gas Heat Wiring
130
Gas Furnace Safety Features
131
Combustion Air Proving
131
Rollout
131
Maintenance
131
Normal Maintenance
131
Filters
131
Motors
131
Fan Drives
132
Outdoor Coil
132
Gas Burner
132
To Clean Burners
132
Combustion Air Discharge
132
Cleaning Flue Passages and Heating Elements
132
Indoor Blower Bearing Lubrication
132
Secure Owners Approval
133
Typical Flue Baffle
133
25 Ton Charging Curve
134
30 Ton Charging Curve
135
40 Ton Charging Curve
136
Pressure Drop Dry Evaporator Coil Vs Supply Air Cfm - 25 Ton
137
Pressure Drop Dry Evaporator Coil Vs Supply Air Cfm - 30 & 40 Ton
138

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User Manuals: York MILLENNIUM Y24 Air Conditioner

York MILLENNIUM Y24 Installation Manual (140 pages)

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