Carrier NP034-074 Manuals

Manuals and User Guides for Carrier NP034-074. We have 2 Carrier NP034-074 manuals available for free PDF download: Controls Operation And Troubleshooting, Installation, Start-Up And Service Instructions Manual

Carrier NP034-074 Controls Operation And Troubleshooting (116 pages)

Single-Package Heating/Cooling Units With Product Integrated Controls 50/60 Hz

Brand: Carrier | Category: Air Conditioner Accessories | Size: 1.83 MB

Table of Contents
1
Safety Considerations
2
General
2
- Architecture
  2
PIC Rooftop Information
4
Digital Air Volume (DAV) Linkage
4
Major Control Components
4
General
4
Controls and Functions
8
Definitions
8
Accessing the Control System
9
Basic System Functions
12
Service Group
16
Schedules Group
18
Economizer and Power Exhaust Group
20
- Nighttime/Unoccupied Free Cooling
  21
Smoke Control Group
24
Special Ventilation Group
25
- Indoor Air Quality (Iaq)
  25
Dehumidification and Humidifier Group
28
- Dehumidification and Reheat
  28
Supply Fan Duct Pressure and VAV Control Group
29
- SUPPLY FAN DUCT PRESSURE CONTROL (VAV Only)
  29
- SUPPLY-AIR SET POINT RESET (External Signal)
  30
Remote Controls Group
31
- SPACE TEMPERATURE OFFSET (CV Only)
  31
Special Systems Group
31
- HEAD PRESSURE/FAN CYCLING CONTROL (Motormaster® Head Pressure Control)
  32
- Transducers and Suction Thermistors
  33
Carrier Comfort Network
33
Carrier Comfort Network (CCN) Group
33
Installation Information
34
Control Wiring
34
Smoke Control
34
- Function Wiring
  35
Remote SASP Reset
35
Remote START/OCCUPIED Control
35
Timed Discrete Output
41
Air Pressure Tubing
41
Space Temperature Sensors
41
Humidity Sensors
41
Interface
43
- RJ-11 Plug Wiring
  44
Monitor And/Or Control from Non-CCN Building Management System
44
Start-Up
46
Initial Check
46
Set Fan Status and Check Filter Switches
46
- Supply Fan Status Switch (Fs)
  46
- Check Filter Switch (Cfs)
  46
Auxiliary Switch, Power Exhaust
46
Adjusting Set Points
47
- Set Point Function
  49
Program Time Sequences
52
- Schedule Function
  52
Start Unit
53
Operating Sequences
53
Head Pressure Control
56
Control Loop Checkout
60
Unit Operation
61
Status Function
61
Troubleshooting
71
Checking Display Codes
71
Unit Standby
71
Complete Unit Stoppage
71
Single Circuit Stoppage
72
Restart Procedure
72
Alarm and Alerts
72
- Diagnostic Alarm Codes and Possible Causes
  72
Thermistor Troubleshooting
76
Transducer Troubleshooting
80
Refrigerant Pressure Transducer Replacement and Calibration
80
Red Led
81
Control Modules
81
Economizer Actuator
84
Variable Frequency Drive
84
Quick Test
86
Forcing Values
87
Service
87
History Function
87
Service Function
87
Test Function
96
Unit Control Wiring
96
- Appendix A - Input/Output
  103
- Tables 034-078
  103
- Appendix B - Input/Output
  105
- Tables 088,104
  105
Appendix C - CCN Points List
107
Appendix D - Bacnet Points List
109
- Appendix E - Carrier Default Program
  111
- Parameter Values
  111
Start-Up Checklist
113

Carrier NP034-074 Installation, Start-Up And Service Instructions Manual (72 pages)

Single Package Heating and Cooling Units

Brand: Carrier | Category: Air Conditioner | Size: 1.45 MB

Table of Contents
1
General
2
Safety Considerations
2
Installation
2
Rigging and Unit Placement
2
Roof Curb
2
Roof Mount
2
Slab Mount
2
Positioning
3
Field-Fabricated Ductwork
6
Condensate Drains
10
Install Outdoor Hoods
10
- Unit Sizes
  10
Outdoor-Air Inlet Adjustments
10
- Manual Outdoor-Air Damper
  10
- Economizer Settings
  10
Field Wire Routing
17
- Unit Sizes
  17
Field Electrical Connections
17
- Power Wiring
  17
- Control Wiring
  34
Gas Piping (48 Series Units Only)
36
Installing Flue/Inlet Hoods
36
- Only)
  37
- Unit Sizes
  38
Pre-Start-Up
38
Unit Preparation
38
Compressor Mounting
38
Evaporator-Fan Shipping Brackets
38
Internal Wiring
38
Refrigerant Service Valves
38
Crankcase Heaters
38
Compressor Oil
38
- Units Only)
  39
Unit Voltage
39
Leak Test and Dehydration
39
Evaporator-Fan Belts, Pulleys, and Sheaves
39
Condenser Fans and Motors
40
Return-Air Filters
40
Economizer Inlet Screens
40
Economizer Dampers
40
25% Outdoor-Air Damper
40
Initial Check
41
Start-Up
41
General
41
Operating Sequences
41
Head Pressure Control
42
Service
42
Service Access
42
Cleaning
45
Lubrication
45
- Inlet Guide Vane Bearings
  45
Adjustments
46
Main Burner Removal (48 Series Units Only)
50
Switch Adjustment
50
Refrigerant Feed Components
50
Thermostatic Expansion Valve (TXV)
50
Moisture/Liquid Indicator
51
Filter Drier
51
Liquid Line Service Valve
51
Compressor Discharge Service Valve
51
Compressor Suction Service Valve
51
Protective Devices
51
Relief Devices
51
Control Circuit, 115 V
52
Control Circuit, 24 V
52
Electric Heat (50 Series Units Only)
52
Gas Heat (48 Series Units Only)
52
Troubleshooting
52
Economizer
52
- Economizer Motor Checkout
  52
- Economizer Control Board Checkout
  52
Unit Control Board Checkout
53
- Basic Check
  53
- Detailed Check
  53
Start-Up Checklist
72

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