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Emerson Liebert SRC24 Cooling System Manuals
Manuals and User Guides for Emerson Liebert SRC24 Cooling System. We have
1
Emerson Liebert SRC24 Cooling System manual available for free PDF download: User Manual
Emerson Liebert SRC24 User Manual (124 pages)
Mini-Split Cooling System
Brand:
Emerson
| Category:
Air Conditioner
| Size: 18.81 MB
Table of Contents
Table of Contents
3
Important Safety Instructions
11
Safety Symbols
17
1 Model Number and Nomenclature
19
Figure 1-1 Product Nomenclature
19
2 Product Introduction
21
Figure 2-1 Indoor Unit Parts and Functions
21
Figure 2-2 Outdoor Unit Parts and Functions
21
Figure 2-3 Thermostat Parts and Functions
22
Figure 2-4 Accessories
22
Figure 2-5 Icon Descriptions and Functions
23
Electrical Data
26
Table 2-1: Unit Electrical Data
26
R410A Refrigerant
27
3 Installation
29
Selecting the Location for the Outdoor Unit
29
Ambient Air Conditions
30
Oceanside Applications
30
Figure 3-1 Oceanside Placement Using a Windbreak
31
Figure 3-2 Oceanside Placement Using a Building
32
Mounting the Outdoor Unit
33
Mounting Platform
33
Tie-Downs and Wind Restraints
33
Figure 3-3 Outdoor Unit Mounting Methods
33
Snow and Ice Conditions
34
Clearance Requirements
34
Outdoor Unit Clearance
34
Figure 3-4 Outdoor-Unit Clearances
34
Figure 3-5 Outdoor-Unit Sunroof/Awning Clearances
35
Figure 3-6 Clearances When There Are Obstacles on both Air-Inlet and Air-Outlet Sides
35
Figure 3-7 Clearances When There Are Obstacles above and on both Air-Inlet and Air-Outlet Sides
35
Indoor Unit Clearance
36
Installing the Indoor Unit
36
Mounting the Installation Plate to the Wall (SRC18)
36
Figure 3-8 Indoor Unit Clearance Requirements
36
Figure 3-9 Installation-Plate Screws for SRC18
37
Figure 3-10 Piping Clearance for SRC18 Plate
37
Mounting the Installation Plate to the Wall (SRC24, SRC36)
38
Figure 3-11 Installation-Plate Screws for SRC24 and SRC36
38
Figure 3-12 Piping Clearance for SRC24 and SRC36 Plate
38
Drilling a Piping Hole in the Wall
39
Mounting the Indoor Unit to the Plate
39
Figure 3-13 Drilling a Piping Hole
39
Figure 3-14 Hook the Top of the Unit to the Plate
39
Prepare for Piping/Electrical Connection
40
Figure 3-15 Move the Bottom of the Unit to the Plate and Attach to Plate
40
Figure 3-16 Insert and Tighten Screws
40
Pump down Procedure
41
Figure 3-17 Rear View of Indoor Unit
41
4 Installation Checklist
43
5 Piping
45
Piping Preparation
45
Creating a Flare Fitting
45
Figure 5-1 Creating a Flared Fitting
46
Tightening Flare Nuts
47
Figure 5-2 Flared-Connection Dimensions
47
Figure 5-3 Tightening the Flare Nuts
47
Table 5-1 Flared-Connection Dimensions
47
Table 5-2 Tightening Torque for Flare Nuts
47
Loosening Flare Nuts
48
Piping Materials and Handling
48
Figure 5-4 Keep Piping Capped While Storing
48
Table 5-3: Three Principles of Refrigerant Piping
48
Brazing Practices
49
Figure 5-5 Refrigerant-Pipe Brazing
49
Refrigerant-Piping System Insulation
50
Selecting Field-Supplied Copper Tubing
50
Table 5-4 ACR Copper-Tubing Material
50
No Pipe Size Substitutions
51
Table 5-5: Piping-Tube Thickness
51
Table 5-6: ACR Copper-Tubing Dimensions and Physical Characteristics
51
Copper Expansion and Contraction
52
Figure 5-6 Installing Piping above and below an Obstacle
52
Obstacles
52
Table 5-7 Linear Thermal Expansion of Copper Tubing, in Inches
53
Figure 5-7 Coiled Expansion Loops and Offsets
54
In-Line Refrigeration Components
54
Pipe Bends
54
Table 5-8 Radii of Coiled Expansion Loops and Developed Lengths of Expansion Offsets
54
Field-Provided Isolation Ball Valves
55
Figure 5-8 Pipe-Hanger Details
55
Pipe Supports
55
Table 5-9 Equivalent Piping Length for Piping Components
55
Using Elbows
55
Figure 5-9 Typical Pipe-Support Location for a Change in Pipe Direction
56
Figure 5-10 Pipe Sleeve Options
57
Pipe Sleeves at Penetrations
57
Figure 5-11 Typical Arrangement of Pipe and Cables in a Utility Conduit
58
Table 5-10 Utility-Conduit Sizes
58
Table 5-11 Heat-Pump Unit Refrigerant-Pipe Connections (All Brazed Type)
58
Underground Refrigerant Piping
58
Piping Connections
59
Connection Limitations
59
Figure 5-12 System Layout
59
Table 5-12 Refrigerant-Piping System Limitations
59
Piping Connections Layout
60
Figure 5-13 Piping Installation and Connection Overview
60
Figure 5-14 Pipe-Support Spacing for Outdoors
60
Figure 5-15 Proper Pipe and Cable Bundling-Cut-Away
61
Figure 5-16 Bundling and Taping Piping and Cables
61
Pipe Bundling
61
Bundling and Trap When Indoor Unit Is above Outdoor Unit
62
Bundling and Trap When Indoor Unit Is below Outdoor Unit
62
Figure 5-17 Piping/Trap When Indoor Unit Is above Outdoor Unit
62
Figure 5-18 Piping/Trap When Indoor Unit Is below Outdoor Unit
62
Routing the Drain Hose for Indoor Unit
63
Figure 5-19 Correct Slope Angle for Drain Hose
63
Figure 5-20 Incorrect Methods of Routing Drain Hose
63
Installing a Drain Hose on the Outdoor Unit
64
Figure 5-21 Outdoor Unit Drain-Connection Components for SRC18
64
Figure 5-22 Outdoor Unit Drain-Connection Components for SRC24 and SRC36
64
Table 5-13 Outdoor Unit Drain-Connection Components
64
Connecting Piping on the SCR18 Outdoor Unit
65
Figure 5-23 Removing Connection Cover from SRC18 Outdoor Unit
65
Figure 5-24 Align Center of Piping Connection
65
Figure 5-25 Correct Piping Attachment for SRC18 Outdoor Unit
66
Table 5-14 Tightening Torque for Flare Nuts
66
Connecting Piping on the SCR24 and SCR36 Outdoor Unit
67
Figure 5-26 Removing Connection Cover from SRC24 and SRC36 Outdoor Unit
67
Figure 5-27 Align Center of Piping Connection
67
Figure 5-28 Correct Piping Attachment for SRC24 and SRC36 Outdoor Unit
68
Table 5-15: Tightening Torque for Flare Nuts
68
Connecting Piping on the Indoor Unit
69
Figure 5-29 Removing the Chassis Cover from Indoor Unit
69
Figure 5-30 Bending Drain Tubing at Rear of Indoor Unit
70
Figure 5-31 Piping Connection with Insulation Material
70
Figure 5-32 Correct Cutting Line Placement
71
Figure 5-33 Wrapping Connection Pipe to Indoor-Unit Pipe
71
Figure 5-34 Bundling Pipe and Drain Hose at Rear of Indoor Unit
72
Figure 5-35 Piping Bundle Placement in Housing at Rear of Indoor Unit
72
Piping Insulation
73
Figure 5-36 Typical Pipe-Insulation, Power Wire, and Communications-Cable Arrangement
73
Figure 5-37 Typical Butt-Joint Insulation at Indoor Unit
74
Figure 5-38 Typical Refrigerant Flare-Fitting Insulation
74
Minimum Requirements for Wall Thickness of Ethylene Propylene Diene Methylene (EPDM) Pipe Insulation
75
Table 5-16 Insulation Guidelines for Typical and Special Circumstances
75
Air Purging
76
Figure 5-39 Removing Service-Valve Caps from Outdoor Unit for Purging
76
Piping Leak Test
77
Figure 5-40 Evacuation Set up
77
Connecting the Pressure Gauge
78
Figure 5-41 Leak-Test Set-Up Diagram
78
Soap-And-Water Leak Testing
78
Ambient Temperature for Leak Test
79
Evacuation
79
Table 5-17 Evacuation Timing
79
Removing Purge and Test Equipment
80
6 Electrical Connections
81
Power-Supply/Power-Wiring Specifications
81
Figure 6-1 Indoor and Outdoor Wiring and Communications Cable Diagram
82
Figure 6-2 Typical Ring Terminal
82
Figure 6-3 Proper and Improper Power-Wiring Connections
83
Communication-Cable Specifications
84
Communication Cables between the Unit and Controller
84
Connecting Indoor Unit Electrical Wiring
85
Figure 6-4 Latch over the Screws on Bottom Panel of Indoor Unit
85
Figure 6-5 Remove Screws from Bottom Panel
86
Figure 6-6 Remove Bottom Panel
86
Figure 6-7 Communication-Wires Knockout Panel
86
Figure 6-8 Indoor-Unit Terminal Block with Grounding Cable (Example Only)
87
Figure 6-9 SRC18 Indoor-Unit Terminal-Block Connections
87
Terminal-Block Connection for SRC18
87
Terminal-Block Connection for SRC24, SRC36
88
Connecting Outdoor Unit Electrical Wiring
88
Figure 6-10 SRC24 and SRC36 Indoor Unit Terminal-Block Connections
88
Figure 6-11 SRC18 Outdoor-Unit Terminal-Block Connections
89
Figure 6-12 SRC24 and SRC36 Outdoor-Unit Terminal-Block Connections
90
Figure 6-13 Circuit Breaker Wiring
90
Thermostat Installation and Wiring
91
Figure 6-14 Proper and Improper Thermostat Locations
91
Figure 6-15 Cable-Entry Hole/Guide Grooves
92
Figure 6-16 Thermostat Back Plate Installation
92
Figure 6-17 Mounting Thermostat Onto Back Plate
93
Figure 6-18 Extension Cable from Indoor Unit to Thermostat
93
Figure 6-19 Thermostat Cable Prep
94
Figure 6-20 Thermostat and Indoor Unit Terminal-Block Connections
94
7 Installation Set-Up and System Start-Up
95
Accessing Installer Set-Up Mode
95
Table 7-1: General Unit Functions-Installer Set-Up Codes
95
Running Test Mode
96
Setting the Address of Central Control
97
Setting E.S.P
97
Setting the Thermistor
98
Table 7-2 Thermistor Setting Options
98
Setting the Ceiling Height
99
Setting Fahrenheit/Celsius
99
Table 7-3 Ceiling-Height Setting Options
99
Setting Optional Functions
100
Setting Temperature Range
100
8 Operation
101
Operating the Unit
101
Figure 8-1 On/Off Button Location
101
Automatic Unit Restart
102
Enabling Cooling-Only Mode
102
Disabling Cooling-Only Mode
103
Standard Operation
103
Selecting Cooling Mode
103
Selecting Power Cooling
103
Selecting Heating Mode
104
Selecting Dehumidification Mode
104
Selecting Fan Mode
104
Selecting Auto Mode
104
Selecting Timed Override
105
Selecting Set Back
105
Setting the Temperature
106
Adjusting Air Flow
106
Selecting Energy-Saving Cooling
106
Selecting Automatic Drying
106
Selecting Fan Auto
107
Function Settings
107
Setting Louver Angle Control
107
Locking the Display
107
Setting the Minimum Difference between the Cooling and Heating Setpoints
108
Setting Current Time
108
Setting Override Time
108
Setting Set-Back Temperature
108
Clearing the "Clean Filter" Alarm
109
Schedule Set-Up
109
Simple Schedule
109
Sleep Schedule
109
Weekly Schedule
109
Copy/Paste a Schedule
110
Schedule a Holiday
110
Delete All Schedules
110
9 Maintenance
111
Figure 9-1 Cleaning the Outside of the Indoor Unit
111
Table 9-1: Cleaning Schedule
111
Cleaning the Air Filter
112
Cleaning the Air Filter on Type 1 Units
112
Cleaning the Air Filter on Type 2 Units
112
Figure 9-2 Removing the Air Filter from Type 1 Unit
112
Figure 9-3 Inserting Cleaned Air Filter in Type 1 Unit
112
Figure 9-4 Knobs on Air Filter of Type 2 Unit
112
Figure 9-5 Removing the Air Filter from Type 2 Unit
113
Figure 9-6 Inserting Cleaned Air Filter on the Hooks of the Type 2 Unit
113
Figure 9-7 Push down on the Hooks of the Type 2 Unit
113
Cleaning the Optional 3M or Triple Filter
114
Figure 9-8 Removing 3M/Triple Filters from Indoor Unit
114
Figure 9-9 Replacing 3M/Triple Filters in the Indoor Unit
114
10 Troubleshooting
115
Self-Diagnosis at the Indoor Unit
115
Before Calling for Service
115
Self-Diagnosis at the Thermostat
116
Troubleshooting Error Codes at the Indoor and Outdoor Units
116
Figure 10-1 Error Codes Displayed at the Thermostat
116
Figure 10-2 Error-Code Display for SRC18
117
Figure 10-3 Error-Code Display for SRC24 and SRC36
117
Table 10-1 Error Codes
118
Troubleshooting Table
119
Table 10-2 Troubleshooting Problems, Causes and Correction
119
Refrigerant Leaks
120
Figure 10-4 Refrigerant Concentration Limit (RCL) Calculations Equation
121
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