Johnson Controls XAT20 Unit Manuals

Manuals and User Guides for Johnson Controls XAT20 Unit. We have 1 Johnson Controls XAT20 Unit manual available for free PDF download: Instruction Manual

Johnson Controls XAT20 Instruction Manual

Johnson Controls XAT20 Instruction Manual (53 pages)

Brand: Johnson Controls | Category: Fan | Size: 2 MB

Table of Contents

Table of Contents
1
General
2
Installation
5
Limitations
5
XAT15, XAT20 Unit Limitations
6
XAT20 Component Location
6
Location
7
Rigging and Handling
7
XAT15, XAT20 Unit Weight
8
XAT20 Unit 4 Point Load Weight
8
XAT20 Unit 6 Point Load Weight
8
XAT15 Unit 4 Point Load Weight
8
XAT15 Unit 6 Point Load Weight
8
Center of Gravity
8
XAT15, XAT20 Unit Accessory Weights
9
XAT20 Unit Dimensions Front View
9
XAT15 Unit Dimensions Front View
10
XAT15, XAT20 Unit Dimensions Rear View
11
XAT15, XAT20 Unit Clearances
12
XAT15, XAT20 Unit Dimensions Rain Hood
12
XAT15, XAT20 Roof Curb
12
Ductwork
13
Condensate Drain
13
Fixed Outdoor Air Damper
13
Compressors
14
Filters
14
Power and Control Wiring
14
Control Wire Sizes
15
Field Wiring Disconnect - Heat Pump Unit With/Without Electric Heat
15
Typical Field Wiring 24 Volt Thermostat
16
Electrical Data
17
XAT15, XAT20 Physical Data
21
Field Installed Electric Heat Accessories
23
Options/Accessories
23
Economizer Sequences
23
Dry Bulb Changeover
23
Single Enthalpy Changeover
23
Dual Enthalpy Changeover
23
Auto
23
Free Cooling Operation
23
Electric Heat Minimum Supply Air
23
Power Exhaust
24
Setpoints
24
Inputs
24
Outputs
24
Operation
24
Smart Equipment™ Economizer Board Details
25
SE-ECO1001-0 Economizer Controller
25
Optional BAS-Ready Economizer Power Exhaust Damper Set Point Adjustment
28
Belt Adjustment
29
Altitude/Temperature Correction Factors
30
Air Flow Performance - Side Duct Application
32
Air Flow Performance - Bottom Duct Application
33
Air Balance
34
RPM Selection
34
Indoor Blower Specifications
34
Power Exhaust Specifications
34
Pressure Drop Across a Dry Indoor Coil Vs. Supply Air CFM for All Unit Tonnages
34
Additional Static Resistance
35
Sequence of Operation
36
Cooling Sequence of Operation
36
Cooling Operation Errors
36
Electric Heating Sequence of Operations
37
Defrost Termination
38
Interval between Defrosts
38
Forced Defrost
38
Electric Heat Operation Errors
38
Limit Control Setting
38
Start-Up (Cooling)
39
Electric Heat Anticipator Setpoint
39
Charging the Unit
40
XAT15 (15 Ton) Charging Chart
40
XAT20 (20 Ton) Charging Chart
40
Maintenance
41
Normal Maintenance
41
Filters
41
Motors
41
Blower Shaft Bearing
41
Outdoor Coil
41
Smart Equipment™ UCB Details
42
Unit Control Board
42
Start-Up Sheet
48

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