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ZJ Series
Johnson Controls ZJ Series User Manual
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5803635-YIM-A-0220
Johnson Controls Ducted Systems
19
Figure 23:
Field Wiring Disconnect - C
ooling Unit
With Gas Heat
Without VFD Option
L1
T1
L2
T2
T3
L3
THREE
PHASE
POWER
SUPPLY
FACTORY OR FIELD
SUPPLIED DISCONNECT
GROUND
LUG
CONT
ACTOR 1M
18
20
Table of Contents
Table of Contents
1
General
2
Installation
5
Preceding Installation
5
Limitations
5
Unit Shipping Bracket
5
Condenser Covering
5
Compressor Section
5
Component Location (ZJ120 Shown)
6
Location
7
Rigging and Handling
7
ZJ078-150 Unit Limitations
7
Weights and Dimensions
8
Unit 4 Point Load Weight
8
Unit 6 Point Load Weight
8
Center of Gravity
8
ZJ078-150 Unit Accessory Weights
9
ZJ078-120 Physical Dimensions
9
ZJ150 Physical Dimensions
10
ZJ078-150 Unit Physical Dimensions
11
ZJ078-150 Unit Clearances
11
ZJ078-150 Unit Bottom Duct Openings
12
ZJ078-150 Unit Electrical Entry
13
ZJ078-120 Unit Side Duct Openings
13
Side Duct Dimensions
14
ZJ150 Unit Side Duct Openings
14
ZJ078-150 Unit Left/End Duct Opening
14
Left/End Duct Dimensions
15
ZJ078-150 Roof Curb
15
ZJ078-150 Transition Roof Curb
15
Ductwork
16
Side Panels
16
Condensate Drain
16
Side Panels with Hole Plugs
16
Return down Flow Plenum with Panel
16
Discharge Panel in Place
16
Save Side Panels for Economizer Hood Tops
16
Compressors
17
Filters
17
Power and Control Wiring
17
Condensate Drain
17
Field Wiring Disconnect - Cooling Unit With/Without Electric Heat and All Units with VFD Option
18
Field Wiring Disconnect - Cooling Unit with Gas Heat Without VFD Option
19
Control Wire Sizes
20
Typical Electronic Thermostat Field Wiring
20
Electrical Data
21
Physical Data
29
Optional Electric Heat
31
Optional Gas Heat
31
Electric Heat Minimum Supply Air
31
Side Entry Gas Piping
31
Gas Pipe Sizing - Capacity of Pipe
32
Gas Heat Minimum Supply Air
32
Bottom Entry Gas Piping
32
Options/Accessories
33
Optional Variable Air Volume (VAV)
34
Optional Hot Gas Bypass (HGBP)
36
Economizer Sequences
36
Dry Bulb Changeover
36
Single Enthalpy Changeover
36
Dual Enthalpy Changeover
36
Auto
36
Simplified VFD Wiring
36
Free Cooling Operation
37
Power Exhaust
37
Smart Equipment™ Economizer Board Details
38
SE-ECO1001-0 Economizer Controller
38
Supply Air Limitations
41
Belt Adjustment
42
Altitude/Temperature Correction Factors
43
Airflow Performance
45
Airflow Performance - Side Duct Application
45
Airflow Performance - Bottom Duct Application
47
RPM Selection
48
Air Balance
49
Checking Air Quantity
49
Indoor Blower Specifications
49
Power Exhaust Specifications
49
Dry Coil Delta P
50
Motor Sheave Datum Diameters
51
Operation
52
Cooling Sequence of Operation
52
Additional Static Resistance
52
Cooling Operation Errors
54
Electric Heating Sequence of Operations
55
Electric Heat Operation Errors
55
Electric Heat Limit Setting
55
Gas Heating Sequence of Operations
56
Gas Heating Operation Errors
56
Electric Heat Anticipator Setpoints
56
Gas Heat Limit Control Settings
57
Start-Up (Cooling)
58
Start-Up (Gas Heat)
58
Gas Heat Anticipator Setpoints
58
Checking Gas Heat Input
59
Gas Rate Cubic Feet Per Hour
59
Charging the Unit
60
Gas Heat Stages
60
Typical Flame
60
Typical Gas Valve
60
Control Board Navigation Components
61
Unit Control Board
61
Smart Equipment™ UCB Details
62
Cable for FC Buses and SA Buses in Order of Preference . 67 32 Ignition Control Flash Codes
67
Start-Up Sheet
68
4
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Johnson Controls ZJ Series Specifications
General
Brand
Johnson Controls
Model
ZJ Series
Category
Air Conditioner
Language
English
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