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ZR SERIES
York ZR SERIES Installation Manual
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5167531-YIM-J-1019
12
Johnson Controls Ducted Systems
Figure 11:
ZR078-150 un
it electrical entry
Figure 12:
ZR078-120 unit side d
uct opening
s
Item
Description
A
Disconnect switch cover
B
Power entry Ø 2-1/2
C
Control entry Ø 7/8
D
Power entry Ø 2-1/2
E
Convenience outlet cover
F
C
onvenience outlet power entry Ø 7/8
A
B
C
D
E
F
D
o
t P
l
u
g
s
5
-
5
/3
2
3
1
-
1
1
/1
6
2
-
3
1
/3
2
1
8
-
1
/4
Return
Air
Supply Air
A
B
C
D
11
13
Table of Contents
Table of Contents
1
General
2
Installation
5
Preceding Installation
5
Unit Shipping Bracket
5
Condenser Covering
5
Compressor Section
5
Limitations
6
Unit Components
7
Component Location Table
7
Component Location
7
Location
8
Clearances
8
Rigging and Handling
8
ZR078-150 Unit Limitations
8
Weights and Dimensions
9
Unit 4 Point Load Weight
9
Unit 6 Point Load Weight
9
Center of Gravity
9
ZR078-150 Unit Accessory Weights
10
ZR078-120 Physical Dimensions
10
ZR150 Physical Dimensions
10
ZR078-150 Unit Physical Dimensions
11
ZR078-150 Unit Clearances
11
ZR078-150 Unit Bottom Duct Openings
11
ZR078-150 Unit Electrical Entry
12
ZR078-120 Unit Side Duct Openings
12
Side Duct Dimensions
13
Left/End Duct Dimensions
13
ZR150 Unit Side Duct Openings
13
ZR078-150 Unit/End Left Duct Opening
13
Roof Curb Components
14
ZR078-150 Roof Curb
14
ZR078-150 Transition Roof Curb
14
Ductwork
15
Side Panels
15
Side Panels with Hole Plugs
15
Return down Flow Plenum with Panel
15
Discharge Panel in Place
15
Condensate Drain
16
Compressors
16
Filters
16
Save Side Panels for Economizer Hood Tops
16
Power and Control Wiring
17
Typical Field Wiring Disconnect - Cooling Unit with or Without Electric Heat
18
Control Wire Sizes
19
Typical Field Wiring Disconnect - Cooling Unit with Gas Heat . 18 24 Typical Low Voltage Field Wiring
19
Electrical Data
20
ZR078-150 Physical Data
28
Optional Electric Heat
30
Optional Gas Heat
30
Electric Heat Minimum Supply Air
30
Gas Application Data
30
Side Entry Gas Piping
30
Gas Pipe Sizing - Capacity of Pipe
31
Gas Heat Minimum Supply Air
31
Bottom Entry Gas Piping
31
Options and Accessories
32
Economizer Sequences
33
Dry Bulb Changeover
33
Single Enthalpy Changeover
33
Dual Enthalpy Changeover
33
Auto
33
Free Cooling Operation
33
Power Exhaust
34
Smart Equipment™ Economizer Board
35
SE-ECO1001-0 Economizer Controller
35
Supply Air Limitations
39
Belt Adjustment
39
Altitude/Temperature Correction Factors
40
Airflow Performance
42
Airflow Performance - Side Duct Application
42
Airflow Performance - Bottom Duct Application
44
RPM Selection
45
Air Balance
46
Checking Air Quantity
46
Indoor Blower Specifications
46
Power Exhaust Specifications
46
Dry Coil Delta P
47
Motor Sheave Datum Diameters
48
Additional Static Resistance
49
Operation
50
Cooling Sequence of Operation
50
Cooling Operation Errors
51
Reheat Mode Sequence of Operation
52
Cooling Operation Piping Schematic - Circuit #1 Shown
52
Electric Heating Sequence of Operations
53
Dehumidification Sequence in Normal and Alternate Mode
53
Reheat Operation Piping Schematic - Circuit #1 Shown
53
Electric Heat Operation Errors
54
Gas Heating Sequence of Operations
54
Electric Heat Limit Setting 50 In. Cabinet
54
Electric Heat Limit Setting 42 In. Cabinet
54
Electric Heat Anticipator Setpoints
54
Gas Heating Operation Errors
55
Cooling Start-Up
56
Gas Heat Limit Control Settings
56
Gas Heat Anticipator Setpoints
56
Gas Heat Start-Up
57
Checking Gas Heat Input
57
Gas Rate Cubic Feet Per Hour
58
Gas Heat Stages
58
Charging the Unit
59
Navigation Components for the Smart Equipment™ Control Board
59
Typical Flame
59
Typical Gas Valve
59
Smart Equipment™ Unit Control Board
60
Unit Control Board
60
Cable for FC Buses and SA Buses in Order of Preference
66
Ignition Control Flash Codes
66
Start-Up Sheet
67
Other manuals for York ZR SERIES
Technical Guide
104 pages
Wiring Diagrams
95 pages
5
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York ZR SERIES Specifications
General
Brand
York
Model
ZR SERIES
Category
Air Conditioner
Language
English
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