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Trane
Air Conditioner
YSC120
Trane YSC120 User Manual
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®
Installation
Operation
Maintenance
Packaged Gas/Electric
YSC060 -
YSC120
50 Hz
R
T
-SVX31A-EN
A
ugust 2007
2
Table of Contents
Introduction
2
Literature Change History
2
Overview of Manual
2
Model Number Description
2
Table of Contents
3
Unit Nomenclature
4
Model Number Description
4
General Information
5
Unit Nameplate
5
Compressor Nameplate
5
Unit Description
5
Economizer Control Actuator (Optional)
5
Trane Communication Interface (Optional)
5
Lontalk Communication Interface (Optional)
5
Reliatel Options Module (Optional)
5
System Input Devices
6
And Functions
6
Pre - Installation
7
Unit Inspection
7
Unit Storage
8
Unit Installation Clearances
9
Unit Dimensions
10
Unit Dimensions
11
Unit / Accessory Weights
12
Rigging and Center-Of-Gravity Data
12
Installation
13
Foundation
13
Unit Supply & Return Air Openings
14
Ductwork
15
Roof Curb
15
Rigging
16
Factory Installed Economizer
16
Temperature Limit Switch Usage for Gas Heat Units
17
Gas Heat Technical Data
17
Horizontal Discharge Conversion
18
Ysco60
18
Ysc072 - 120
19
TCO-A Instructions
19
Requirements for Gas Heat
21
Condensate Drain Configuration
21
Condensate Trap Installation
21
Filter Installation
22
Main Unit Power Wiring
22
Field Installed Control Wiring
22
Control Power Transformer
22
Controls Using 24 VAC
22
24V AC Conductors with Reliatel
23
Controls Using DC Analog Input/Outputs
23
Customer Low Voltage Routing
24
Typical Field Wiring
25
For Optional Controls
25
Space Temperature Averaging
26
Temperature Vs Resistance
27
Sizing Natural Gas Pipe Mains & Branches
27
Voltage Imbalance
28
Electrical Phasing
28
(Three Phase Motors)
28
Pre - Start
30
Service Test Guide for Component Operation
30
Verfiying Proper Airflow
31
Economizer Start-Up
32
Compressor Start-Up
32
Scroll Compressors
32
Gas Heat Units
32
Final System Setup
33
Fan Belt Adjustment
34
Belt Tension Gauge
35
Filters
36
Cooling Season
36
Heating Season
36
Annual Maintenance
37
Final Process
37
Sample Maintenance Log
38
Reliatel Control
38
System Status Checkout Procedure
39
Trouble Shooting
39
LED 4 (Service)
39
System Failure
39
Heating Failure
39
Cooling Failure
40
Service Failure
40
Simultaneous Heat and Cool Failure40
40
Cool Failure
40
Cooling and Ignition Lockouts
40
Zone Temperature Sensor (ZTS) Service Indicator
40
Fan Failure Switch
41
Zone Temperature Sensor (ZTS) Test
41
Zone Temperature Thermistor (ZTEMP)
41
Cooling Set Point (CSP) and Heating Set Point (HSP)
41
Serial Communication Voltage
41
Testing Serial Communication Voltage
41
Trouble Shooting
42
Wiring Schematic Control Schematic
43
Power Schematic
44
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Trane YSC120 Specifications
General
Model
YSC120
Category
Air Conditioner
Phase
3
Refrigerant
R-410A
Cooling Capacity
120000 BTU/H
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