Carrier 35L Installation And Start-Up Instructions Manual
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Carrier 35L Installation And Start-Up Instructions Manual

Carrier 35L Installation And Start-Up Instructions Manual

Dual duct terminal units variable volume system
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Installation and Start-Up Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CONTROL ARRANGEMENTS. . . . . . . . . . . . . . . . . . . 2-7
CCN Control Arrangement. . . . . . . . . . . . . . . . . . . . . . . . 3
Analog Electric Control Arrangement . . . . . . . . . . . . 3
Arrangement (Field Supplied). . . . . . . . . . . . . . . . . . . 3
Pneumatic Control Arrangement . . . . . . . . . . . . . . . . . 3
No Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Step 1 - Install Volume Control Box . . . . . . . . . . . . . 3
Step 2 - Make Duct Connections . . . . . . . . . . . . . . . . 3
Wiring Connections - Electronic Analog
or DDC (Direct Digital Controls) . . . . . . . . . . . . . . . . 3
CONTROL SET UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6,7
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Set Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Maximum Airflow Set Points . . . . . . . . . . . . . . . . . . . 6
Flow Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PNEUMATIC CONTROLS . . . . . . . . . . . . . . . . . . . . . . . .7,8
Preparation for Balancing . . . . . . . . . . . . . . . . . . . . . . . . 7
(Control Sequences 1500-1523) . . . . . . . . . . . . . . . . 7
Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 8
Pneumatic Control Troubleshooting. . . . . . . . . . . . . . 8
ANALOG CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . .9,10
from Cold Duct) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Analog Control Troubleshooting . . . . . . . . . . . . . . . . 10
ComfortID™ CONTROLS . . . . . . . . . . . . . . . . . . . . . 10-18
Field-Wiring Connections . . . . . . . . . . . . . . . . . . . . . 10
• GENERAL
INSTALLATION
AND WIRING
AND SET POINT ADJUSTMENT SLIDEBAR
INSTALLATION
• HUMIDITY SENSOR (Wall-Mounted) INSTALLATION
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53350001-01
Book 3
Tab
6a
35L,N Dual Duct Terminal Units
Connect the CCN Communication Bus . . . . . . . . . . 15
Page
ComfortID Controls Start-Up . . . . . . . . . . . . . . . . . . . . 16
• GENERAL
CCN System Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
• COMFORTID TEST AND BALANCE TOOL
SOFTWARE
• COMFORTID CONSTANT VOLUME DUAL DUCT
CONTROL PACKAGE NO. 4160
• COMFORTID VARIABLE AIR VOLUME DUAL
DUCT WITH CONSTANT MINIMUM COLD DECK
AIRFLOW CONTROL PACKAGE NO. 4170
• COMFORTID VARIABLE AIR VOLUME DUAL
DUCT WITH COLD DECK CLOSE-OFF CONTROL
PACKAGE NO. 4175
• COMFORTID VARIABLE AIR VOLUME DUAL
DUCT WITH CONSTANT VENTILATION CONTROL
PACKAGE NO. 4180
• COMFORTID VARIABLE AIR VOLUME DUAL
DUCT WITH DEMAND CONTROL VENTILATION
CONTROL PACKAGE NO. 4190
Air-handling equipment will provide safe and reliable
service when operated within design specifications. The
equipment should be operated and serviced only by autho-
rized personnel who have a thorough knowledge of system
operation, safety devices and emergency procedures.
Good judgement should be used in applying any manu-
facturer's instructions to avoid injury to personnel or dam-
age to equipment and property.
Disconnect all power to the unit before performing mainte-
nance or service. Unit may automatically start if power is
not disconnected. Electrical shock and personal injury
could result.
Printed in U.S.A.
Form 35L,N-1SI
Variable Volume System

SAFETY CONSIDERATIONS

SAFETY NOTE
Pg 1
3-06
Replaces: 35L,M,N-1SI

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  • Page 1: Table Of Contents

    35L,N Dual Duct Terminal Units Variable Volume System Installation and Start-Up Instructions CONTENTS Connect the CCN Communication Bus ..15 • COMMUNICATION BUS WIRE SPECIFICATIONS Page • CONNECTION TO THE COMMUNICATION BUS SAFETY CONSIDERATIONS .

  • Page 2: Pre-Installation

    All Carrier-furnished items carry the standard Carrier warranty. CONTROL ARRANGEMENTS The 35L,N dual duct units are offered with a wide variety of factory-mounted controls that regulate the volume of air deliv- ery from the unit and respond to cooling and heating load requirements of the conditioned space.

  • Page 3: Ccn Control Arrangement

    D000: 35L,N box with control box only Pneumatic Control Arrangement — All control pack- D001: 35L,N box with control box and transformer ages are pressure independent and include standard linear airflow sensors in both the hot and cold inlets for variable air...

  • Page 4: Step 3 - Install Sensors And Make Field

    Code (NEC) and local requirements. Refer to the wiring diagram Fig. 4A-4C and the performance data section of this document. on the unit for specific wiring connections. Table 3 — 35L Non-Mixing Dual Duct Basic Pressure Data MINIMUM INLET STATIC PRESSURE (Unit Pressure Drop) (in. wg)
  • Page 5 *Assumes inlet flow sensor. For discharge flow sensor, use data for unit. Less than 15-20% may result in greater than ±5% control next even size. CCN (Carrier Comfort Network®) controls permit a of the unit airflow. Some DDC controls, supplied by others, may lower minimum flow.

  • Page 6: Control Set Up

    Fig. 4B — Dual Duct Inlet Flow Probe Chart (35N only) CONTROL SET UP General — The 35L,N dual duct terminals are designed to maintain optimum temperatures in the conditioned zone by 10000 varying the air volume supplied by the hot and cold ducts while providing the proper discharge air temperature.

  • Page 7: Pneumatic Controls

    0.10 in. wg for a size 8 unit yields an airflow of 275 cfm. Volume controller for units is shown in Fig. 5. Carrier inlet areas are shown in Table 6. The design air Balancing Procedure (Control Sequences volume is shown in this table. It can be determined from this...

  • Page 8: Preventative Maintenance

    LO STAT ∆P setting is the desired airflow limit when the adjustment is a positive bias adjustment that sets the desired thermostat pressure is less than, or equal to, the reset start thermostat start point to the controller’s internal reset start point.

  • Page 9: Analog Controls

    ANALOG CONTROLS Applications for Dual Duct (Minimum Air From Cold Duct) — Dual duct applications are easily accom- Balancing Procedures (Control Sequences plished by connecting two CSP-5001 Series controllers with a 2400, 2440, 2470) — The analog electronic control dual set point (RA/DA) thermostat, as shown in Fig. 8. In this system is a pressure independent volume reset control that uses application the CSP controllers are mounted separately on the KMC Controls CSP-5001 controller-actuator.

  • Page 10: Analog Control Troubleshooting

    Analog Control Troubleshooting — Wire the control as shown on the control package diagram follow- for the specific installation. Control wiring diagrams can be ing troubleshooting guide is directed towards single duct cool- found inside the control box. ing applications, the same concepts can be applied to other configurations.

  • Page 11: Supply-Air Temperature Sensor

    NOTE: Clean sensor with damp cloth only. Do not use connector can then be used to connect a network service tool solvents. with the Carrier Comfort Network® system. Table 9 — Recommended Sensor and Device Before installing the space temperature sensor, decide Wiring whether or not the service jack wiring connection will be made.
  • Page 12 3’ (MIN) 5’ RED(+) WHT(GND) CCN COM BLK(-) 2/3 OF WALL HEIGHT Fig. 12 — Typical Space Temperature Sensor Room Location BLK (GND) SENSOR WIRING RED (SPT) Fig. 15 — Space Temperature Sensor Wiring (33ZCT55SPT) Cool Warm Fig. 13 — Space Temperature Sensor (P/N 33ZCT56SPT Shown) RED(+) WHT(GND)

  • Page 13: Wiring The Ccn Network Communication

    TION — A primary air temperature (PAT) sensor is used on a zone controller which is functioning as a Linkage Coordinator for a non-CCN (Carrier Comfort Network®)/Linkage compati- ble air source. The part number is 33ZCSENPAT. See Fig. 17. The sensor is also available as field-supplied accessory.
  • Page 14 (Wall-Mounted Version Shown) 33ZCSENCO2 The sensor must be mounted vertically on the wall. The Carrier logo should be oriented correctly when the sensor is properly mounted. DO NOT mount the sensor in drafty areas such as near heat-...

  • Page 15: Connect The Ccn Communication Bus

    Refer to Step 3 of the in- stallation section for sensor wiring instructions. COMMUNICATION BUS WIRE SPECIFICATIONS — The Carrier Comfort Network (CCN) Communication Bus wiring is field-supplied and field-installed. It consists of shielded three-conductor cable with drain (ground) wire. The cable selected must be identical to the CCN communication bus wire used for the entire network.

  • Page 16: Comfortid Controls Start-Up

    HUMIDITY SENSOR WHITE BLACK Shield (If Used) +24V RH/IAQ FAN AC SECFLOW +10V 24VAC COMMUNICATION DMPPOS HEAT3 CONNECTOR TEST RED (+) ® HF23BJ042 ZONE Controller Made in Switzerland ® by Belimo Automation WHITE (GND) 35 in-lb (4 Nm) 80...110s LR 92800 Part Number: 33ZCFANTRM S/N: NEMA 2...

  • Page 17: Ccn System Start-Up

    LEAVING designed to provide accurate temperature control while main- taining a constant airflow to the space. A typical application is COOL AIR SUPPLY shown in Fig. 24. Use package no. 4160 with 35L,N units. AIR SENSOR DAMPER ACTUATOR 24 VAC...
  • Page 18 Field supplied ACTUATOR 24 VAC and installed perimeter or ducted heating may additionally be controlled. A typical application is shown in Fig. 28. Use pack- ZONE age no. 4190 with 35L,N units. CONTROLLER SPACE TEMPERATURE CCN BUS CCN BUS SENSOR Fig.
  • Page 20 Copyright 2006 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53350001-01 Printed in U.S.A. Form 35L,N-1SI Pg 20 3-06 Replaces: 35L,M,N-1SI Book 3...

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