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50FC A05 Series
Carrier 50FC A05 Series User Manual
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105
APPENDIX D — WIRING DIAGRAMS
Fig. S — 50FC
**
07 SystemVu™ Control Wiring
Diagram (All Voltages)
104
106
Table of Contents
Table of Contents
1
Service and Maintenance Instructions
1
Safety Considerations
2
Electrical Operation Hazard
2
Unit Damage Hazard
2
Outside Air Hood
3
Unit Arrangement and Access
3
General
3
Routine Maintenance
3
Filters
3
Manual Outside Air Hood Screen
4
Evaluating Motor Speed
4
Supply Fan (Blower) Section
4
Supply Fan (Direct-Drive)
4
Units with Electro-Mechanical Controls
5
Low Speed Fan Adjustment
5
2-Pin DIP Switch
5
LOW SPEED 2-Pin DIP Switch Settings
5
Units with Systemvu Controls
6
Example of Fan Speed Set up Labels for Electro-Mechanical Controls
6
Fan Speed Set up
6
Factory Setting
6
Troubleshooting the Ecm Motor
7
Fault Condition/Reset Trigger
7
Fan Assembly Removal
8
Supply Fan Control Wiring Diagram
8
Removing the Motor and Fan Assembly
8
Disassembling Motor and Fan Assembly
8
Reinstalling Motor and Fan Assembly
9
Fan System Re-Assembly
9
Fan Assembly Install
9
Staged Air Volume
9
Routine Cleaning of Coil Surfaces
10
Periodic Clean Water Rinse
10
Cooling
10
Condenser Coil Maintenance and Cleaning Recommendation
10
Condenser Coil Clips
11
Separating Coil Sections
11
Top Panel Position
11
Evaporator Coil Metering Devices
12
Thermostatic Expansion Valve (Txv)
12
TXV Operation
12
Replacing TXV
12
TXV Valve and Sensing Bulb Location
13
Access Port Assembly
13
Refrigerant System Pressure Access Ports
13
Low-Charge Cooling
14
Puron (R-410A) Refrigerant
14
Refrigerant Charge
14
Cooling Charging Charts
14
Cooling Charging Chart - 5 Ton
15
Cooling Charging Chart - 4 Ton
15
Cooling Charging Chart - 6 Ton
16
Lubrication
16
Replacing Compressor
16
Condenser-Fan Assembly — Screw Pattern Sequence
17
Compressor Rotation
17
Filter Drier
17
Condenser-Fan Adjustment
17
Troubleshooting Cooling System
18
Weatherproof Cover Installation
19
Convenience Outlets
19
Installing Weatherproof Cover
19
Non-Powered Type
19
Duty Cycle
20
Maintenance
20
Fuse on Powered Type
20
Electric Heaters
20
Single Point Boxes and Supplementary Fuses
21
Field Power Connections
21
Safety Devices
21
Completing Heater Installation
21
System
22
Controller
22
Smoke Detector Sensor
22
Smoke Detector Locations
22
Return Air Smoke Detector Sensor with Economizer
23
Return Air Smoke Detector Sensor Without Economizer
23
Completing Installation of Return Air Smoke Detector
23
Using Remote Logic
24
Additional Application Data
24
Highlight D
24
FIOP Smoke Detector Wiring and Response
24
Sensor Alarm Test Procedure
25
Dirty Sensor Test Procedure
25
Sensor and Controller Tests
25
Sensor Alarm Test
25
Changing the Dirt Sensor Test
25
Remote Station Test
25
SD-TRK4 Remote Alarm Test Procedure
25
Cleaning the Smoke Detector
26
Remote Test/Reset Station Dirty Sensor Test
26
Dirty Sensor Test Using an SD-TRK4
26
Detector Cleaning
26
Indicators
26
Sensor’s Trouble Led Is on
27
Sensor’s Power Led Is off
27
Controller’s Power Led Is off
27
Troubleshooting
27
Protective Devices
27
Compressor Protection
27
Relief Device
28
Control Circuit, 24-V
28
Systemvu Control System
28
Systemvu Interface
28
Additional Systemvu Installation and Troubleshooting
28
RTU Open Control Module
29
Rtu Open Control System
29
Sensory/Accessory Installation
29
Economi$Er IV Component Locations
30
Economi$Er2 Component Locations
30
Additional RTU Open Installation and Troubleshooting
30
Economizer Systems
30
Economi$Er2 with 4 to 20 Ma Control Wiring
31
Economi$Er IV Functional View
32
Typical Economi$Er IV (W7212 Controller) Wiring
32
Economi$Er IV Standard Sensors
32
Economi$Er IV (Field-Installed Accessory)
32
Economi$Er IV Input/Output Logic
33
Supply Air Temperature (SAT) Sensor
33
Outdoor Air Temperature (OAT) Sensor
33
C7660 Temperature Sensor
33
Economi$Er IV Control Modes
34
Outdoor Dry Bulb Changeover
34
Outdoor Enthalpy Changeover
34
Differential Enthalpy Control
34
Vertical Economizer Barometric Relief Flow
35
Horizontal Economizer Barometric Relief Flow
35
Economi$Er IV W7212 Control
35
Outdoor-Air Damper Leakage
35
Indoor Air Quality (IAQ) Sensor Input
36
Exhaust Set Point Adjustment
36
Minimum Position Control
36
Thermostats
37
Occupancy Control
37
Demand Controlled Ventilation (DCV)
37
Sensor Configuration
37
DCV Minimum and Maximum Position
38
Differential Enthalpy
38
Single Enthalpy
38
Supply-Air Sensor Input
38
System Components
39
Economizer Module
39
S-Bus Enthalpy Control Sensors
39
Economi$Er X (Factory Option)
39
Inputs
40
Sensors
40
Outputs
40
Actuator Signal
40
S-Bus Sensor Wiring
41
Interface Overview
41
User Interface
41
S-Bus Sensor DIP Switches
41
Time-Out and Screensaver
42
Menu Structure
42
W7220 Controller Navigation Buttons
42
W7220 Menu Structure
43
Legend
47
Enthalpy Settings
48
Single Enthalpy Curve Boundaries
48
Single Enthalpy and Dual Enthalpy High Limit Curves
48
Economizer Operation - FAN TYPE = 1SPEED
49
Standard or Single Speed Fan Operation
49
2 Speed Fan Operation
50
Economizer Operation - FAN TYPE = 2SPEED
50
Checkout Tests
51
Power up
51
Initial Menu Display
51
Clearing Alarms
51
Pre-Start-Up/Start-Up
52
Start-Up, General
52
Unit Preparation
52
Additional Installation/Inspection
52
Return-Air Filters
52
Outdoor-Air Inlet Screens
52
Compressor Mounting
52
Internal Wiring
52
Refrigerant Service Ports
52
Compressor Rotation
53
Cooling
53
Heating
53
Ventilation (Continuous Fan)
53
Fastener Torque Values
53
Start-Up, Rtu Open Controls
53
Start-Up, Systemvu Controls
53
Appendix A - Model Number Nomenclature
54
50Fc 3 to 4 Ton Physical Data – Cooling
55
Appendix B - Physical Data
55
50Fc 5 to 6 Ton Physical Data – Cooling
57
General Fan Performance Notes
58
Appendix C - Fan Performance
58
50Fc-A04 Single Phase — 3 Ton Vertical Supply (Rpm - Bhp)
59
50Fc-A04 Three Phase — 3 Ton Vertical Supply (Rpm - VDC)
61
50Fc-A04 Three Phase – Standard Static — 3 Ton Vertical Supply
61
50Fc-A05 Single Phase – Standard Static
63
50Fc-A05 Single Phase — 4 Ton Vertical Supply (Rpm - Bhp)
63
50Fc-A05 Three Phase — 4 Ton Vertical Supply (Rpm - Bhp)
65
50Fc-A06 Single Phase — 5 Ton Vertical Supply (Rpm - Bhp)
67
50Fc-M07 Three Phase — 6 Ton Vertical Supply (Rpm - Bhp)
71
50Fc-A04 Single Phase — 3 Ton Horizontal Supply (Rpm - Bhp)
73
50Fc-A06 Three Phase — 5 Ton Horizontal Supply (Rpm - Bhp)
83
Appendix D - Wiring Diagrams
87
Wiring Diagrams
91
Low Ambient Control Sensor Location
109
Appendix E - Low Ambient Control Sensor
109
Start-Up Checklist
111
4
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Carrier 50FC A05 Series Specifications
General
Brand
Carrier
Model
50FC A05 Series
Category
Air Conditioner
Language
English
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