Carrier 39L- Manual

Carrier 39L

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Table of Contents:

  • Page 3 – Make Electrical Connections —
  • Page 4 – Fig. 1 — Basic PIC Order Number
  • Page 5 – Fig. 2 — PIC Option Order Number
  • Page 8 – Fig. 5 — PIC Section Control Box Component Arrangements, 39L
  • Page 11 – Control Circuit From Dedicated Source
  • Page 12 – Table 1 — Input and Output Points
  • Page 37 – Table 2 — Junction Box Connections for Optional Remote Control Box
  • Page 38 – Typical Piping
  • Page 39 – Fig. 15 — Hot Water Valve Wiring
  • Page 40 – Fig. 16 — Chilled Water Valve Wiring; Fig. 17 — Duct Static Pressure Probe
  • Page 41 – Temperature Sensor, and Supply-Air Temperature Sensor; NEMA — National Electrical Manufacturers’ Association
  • Page 42 – RESISTANCE; Mixed-Air Temperature Sensor —; Sensor Installation
  • Page 44 – CONTROL SETTINGS; DIAL; Fig. 24 — Enthalpy Control Settings
  • Page 45 – Fig. 28 — Duct High Humidity Switch
  • Page 47 – Sensor Locations
  • Page 48 – Airflow Switch —
  • Page 49 – Filter Status Switch —; Table 6 — CO; CO
  • Page 50 – Fig. 40 — Ventilation Rates Based on CO; Fig. 43 — Probe Manifolding
  • Page 51 – Note that the probe does not measure true velocity pres-; OAHR = Transducer high pressure; Table 7 — OAC Pressure Transducers
  • Page 52 – Field Wiring Connections —; Table 8 — Recommended Sensor and
  • Page 53 – Fig. 44 — Field Wiring of Sensors
  • Page 54 – Table 9 — Recommended Actuators; Fig. 46 — Exhaust Damper Actuator Wiring (Smoke; EXD — Exhaust Air
  • Page 55 – Fig. 47 — Field-Supplied Mixing Box Actuator Signal Wiring
  • Page 58 – NC
  • Page 60 – Fig. 56 — Wiring of Two-Stage Humidification Control Relays; Fig. 57 — Wiring of the Duct
  • Page 61 – Fig. 59 — Duct Mounted Relative Humidity; RH — Relative Humidity; Fig. 61 — Wiring of Relative Humidity Transmitters
  • Page 62 – AQ; Fig. 62 — Air Quality and OAVP Sensor Wiring; IGV — Inlet Guide Vane; Fig. 63 — Field-Installed Fan Volume Control
  • Page 63 – Fig. 65 — Wiring of Return Fan Volume Control; Fig. 66 — Wiring of Return Fan Volume Control
  • Page 64 – CONTROL SYSTEM; Fig. 68 — CCN Sensor Plug and Communication
  • Page 65 – Fig. 69 — CCN Communication Wiring
  • Page 66 – Fig. 70 — Outdoor Air Thermostat/DSIO Wiring
  • Page 67 – The; Table 10 — Local Interface Device Key Usage; Fig. 74 — Local Interface Device
  • Page 68 – Table 11 — Functions and Subfunctions
  • Page 69 – Table 12 — Accessing Functions and Subfunctions; OPERATION
  • Page 70 – Table 13 — Keyboard Directory
  • Page 71 – DX — Direct Expansion
  • Page 79 – Table 14 — Display Codes
  • Page 81 – Example 5 — Using Quick Test; Programming Functions; Example 6 — Logging On and Logging Off
  • Page 82 – Table 16 — Service Configuration Ranges and Defaults
  • Page 83 – Table 16 — Service Configuration Ranges and Defaults (cont)
  • Page 88 – Example 20 — Reading and Changing; key is used as the colon when; Example 21 — Setting of Time and Date
  • Page 89 – Example 23 — Setting of Holidays; Fig. 75 — Schedule I Sample Time Schedule
  • Page 96 – Constant Volume Units Only
  • Page 97 – — Constant Volume; RH
  • Page 98 – DX; Fig. 78 — DX Submaster Gain Control Operation
  • Page 99 – Variable Air Volume Units Only
  • Page 101 – OA
  • Page 103 – Initial Check; Quick Test —
  • Page 104 – Table 18 — Test of Input Signals
  • Page 106 – Table 19 — Test of Output Signals
  • Page 108 – Table 22 — Direct Expansion (DX) Cooling Test; Electronic Valve Actuator Field Test —; Table 23 — Digital DC Volt Meter vs; CONTROL LOOP CHECKOUT
  • Page 109 – Table 24 — Recommended Gain Starting Valves; VALVE TROUBLESHOOTING
  • Page 110 – Example 25 — Forcing An Output; Typical Linkages
  • Page 111 – CONTROL MODULE TROUBLESHOOTING; or
  • Page 112 – Fig. 83 — Module Address Selector Switch
  • Page 113 – UNIT TROUBLESHOOTING
  • Page 116 – METRIC CONVERSION CHART
Loading the manual

Installation, Operation, and

Start-Up Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . 2

GENERAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-64

Service Area Requirements

. . . . . . . . . . . . . . . . . . . 2

Remote Control Box Option

. . . . . . . . . . . . . . . . . . 2

• REMOTE CONTROL BOX CONDENSATE

PREVENTION

Make Electrical Connections

. . . . . . . . . . . . . . . . . . 3

Variable Frequency Drives

. . . . . . . . . . . . . . . . . . . 38

Water Valve Assemblies

. . . . . . . . . . . . . . . . . . . . . 38

• VALVE WIRING

Duct Static Pressure Probe (VAV Units)

. . . . . . 39

Space Temperature Sensor

. . . . . . . . . . . . . . . . . . 40

Outdoor-Air Temperature Sensor

. . . . . . . . . . . . . 42

Mixed-Air Temperature Sensor

. . . . . . . . . . . . . . . 42

Enthalpy Switch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

• CONTROL RANGES

Supply-Air Temperature Sensor

. . . . . . . . . . . . . . 44

Return-Air Temperature Sensor

. . . . . . . . . . . . . . 44

Heat Interlock Relay

. . . . . . . . . . . . . . . . . . . . . . . . . 45

Fan Relay

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Duct High Humidity Switch

. . . . . . . . . . . . . . . . . . 45

Wall-Mounted Relative Humidity Sensor

. . . . . . 46

Duct-Mounted Relative Humidity Sensor

. . . . . . 47

• LOCATION FOR OUTSIDE AIR RELATIVE

HUMIDITY

• LOCATION FOR RETURN AIR RELATIVE

HUMIDITY

Mixing Box Linkage

. . . . . . . . . . . . . . . . . . . . . . . . . 47

Airflow Switch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Low-Temperature Thermostat

. . . . . . . . . . . . . . . . 48

Outdoor-Air Thermostat

. . . . . . . . . . . . . . . . . . . . . 48

Filter Status Switch

. . . . . . . . . . . . . . . . . . . . . . . . . 49

High-Pressure Switch

. . . . . . . . . . . . . . . . . . . . . . . 49

Air Quality Sensors

. . . . . . . . . . . . . . . . . . . . . . . . . 49

Constant Outside Air (OAC) Control

. . . . . . . . . . 50

• PROBE INSTALLATION
• OAC CALIBRATION
• USING OAVP VALUES TO DETERMINE DUCT

AIRFLOW

• FIELD-SUPPLIED OR HIGH-VELOCITY

PRESSURE TRANSDUCERS

Field Wiring Connections

. . . . . . . . . . . . . . . . . . . . 52

• REMOTE LOCAL INTERFACE DEVICE (HSIO)
• RETURN-AIR TEMPERATURE SENSOR,

OUTDOOR-AIR TEMPERATURE SENSOR,
ENTHALPY SWITCH, AND MIXED-AIR
TEMPERATURE SENSOR

• SPACE TEMPERATURE SENSOR (SPT)
• DAMPER ACTUATORS
• SMOKE CONTROL OPTION
• ANALOG DEVICE FOR ANALOG OUTPUT

TEMPERATURE CONTROL

• DEVICE UNDER DISCRETE OUTPUT

TEMPERATURE CONTROL

• DISCRETE OUTPUT DEVICE UNDER

TIMECLOCK CONTROL

• HUMIDIFICATION DEVICES
• AIR QUALITY SENSOR
• OUTSIDE AIR VELOCITY PRESSURE (OAVP)

SENSOR

• FAN VOLUME CONTROL
• ELECTRIC HEATER
• CARRIER COMFORT NETWORK INTERFACE
• OUTDOOR-AIR THERMOSTAT

CONTROL SYSTEM

. . . . . . . . . . . . . . . . . . . . . . . 64-68

Processor (PSIO Master) and Option (PSIO Slave)

Modules

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Relay (DSIO) Module

. . . . . . . . . . . . . . . . . . . . . . . 65

Local Interface Device (HSIO)

. . . . . . . . . . . . . . . 67

CONTROL OPERATION

. . . . . . . . . . . . . . . . . . . 69-91

Accessing Functions and Subfunctions

. . . . . 69

Display Functions

. . . . . . . . . . . . . . . . . . . . . . . . . . 69

• SUMMARY DISPLAY
• STATUS FUNCTION
• HISTORY FUNCTION
• TEST FUNCTION

Programming Functions

. . . . . . . . . . . . . . . . . . . 81

• SERVICE FUNCTION
• SET POINT FUNCTION
• SCHEDULE FUNCTION

CONTROL OPERATING SEQUENCE

. . . . . . . 92-102

Constant Volume and Variable Air

Volume Units

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Constant Volume Units Only

. . . . . . . . . . . . . . . . 96

Variable Air Volume Units Only

. . . . . . . . . . . . . 99

START-UP

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103-108

Initial Check

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Quick Test

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Electronic Valve Actuator Field Test

. . . . . . . . 108

CONTROL LOOP CHECKOUT

. . . . . . . . . . . . 108,109

To Check Operation of Analog Outputs

. . . . . 108

VALVE TROUBLESHOOTING

. . . . . . . . . . . . . 109-111

General

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

All

1

⁄

2

-in. Through 1

1

⁄

4

-in. Electric Hot Water/Steam

Valve Assemblies

. . . . . . . . . . . . . . . . . . . . . . . 109

All 1

1

⁄

2

-in. Through 3-in. Valve Assemblies

. . 110

CONTROL MODULE

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . 111,112

General

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Module Replacement (PSIO, DSIO)

. . . . . . . . . 112

UNIT TROUBLESHOOTING

. . . . . . . . . . . . . . . 113-115

METRIC CONVERSION CHART

. . . . . . . . . . . . . 116

39L,NX

Central Station Air-Handling Units

With Product Integrated Controls (PIC)

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 3
Tab

1b

PC 201

Catalog No. 533-913

Printed in U.S.A.

Form 39L,NX-2SI

Pg 1

3-96

Replaces: 39L,NX-1SI

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Summary

Page 3 - Make Electrical Connections —

Mount the remote control box as follows: 1. Loosen and remove the 4 nuts securing the control panel in the control box. 2. Remove the control panel from the box; set the panel and nuts aside for reassembly later. 3. Mount the control box to the Unistrut t support using field- supplied fasteners. 4. ...

Page 4 - Fig. 1 — Basic PIC Order Number

LEGEND ABX — Air BlenderAF — Airfoil CV — Constant Volume IGV — Inlet Guide Vanes FC — Forward-Curved FMB — Filter Mixing BoxMXB — Mixing BoxPIC — Product Integrated Controls VAV — Variable Air Volume *The cv capacity rating is the flow (gpm) through a valve at 1 psi pres- sure drop. Fig. 1 — Basic ...

Page 5 - Fig. 2 — PIC Option Order Number

LEGEND AF — Airfoil CV — Constant Volume DX — Direct Expansion FC — Forward-Curved FMB — Filter Mixing BoxMXB — Mixing BoxN.C. — Normally Closed N.O. — Normally OpenPIC — Product Integrated Controls VAV — Variable Air Volume *The cv capacity rating is the flow (gpm) through a valve at 1 psi pressure...

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