Carrier 42S - Manual

Carrier 42S

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Table of Contents:

  • Page 3 – Unpack and Inspect Units —
  • Page 4 – Fig. 1 — 42CA Furred-In Horizontal Unit Dimensions
  • Page 6 – Fig. 3 — 42CE Furred-In Horizontal Unit with Plenum Dimensions
  • Page 10 – Fig. 7 — 42CG Horizontal Cabinet Unit Dimensions
  • Page 11 – Fig. 8 — 42CG Horizontal Cabinet with Electric Heat Dimensions
  • Page 12 – Bottom panel is Arctic White polyester powder coat paint.; Fig. 9 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,
  • Page 13 – Fig. 10 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,
  • Page 14 – Fig. 11 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,
  • Page 15 – Fig. 12 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,
  • Page 16 – Fig. 13 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel
  • Page 18 – Fig. 15 — 42VA Furred-In Vertical Unit Dimensions
  • Page 19 – Fig. 16 — 42VB Vertical Cabinet Unit Dimensions
  • Page 20 – Fig. 17 — 42VF Vertical Cabinet Unit with Slant Top Dimensions
  • Page 21 – Fig. 18 — 42VC Furred-In Lowboy Unit Dimensions
  • Page 22 – Fig. 19 — 42VC Furred-In Lowboy Unit with Electric Heat Dimensions
  • Page 23 – Fig. 20 — 42VE Cabinet Lowboy Unit Dimensions
  • Page 24 – Fig. 21 — 42VE Cabinet Lowboy Unit with Electric Heat Dimensions
  • Page 25 – Fig. 22 — 42VG Furred-In Wall Unit Dimensions
  • Page 26 – Fig. 23 — 42DA Furred-In Ceiling Unit with Electric Heat Dimensions
  • Page 28 – Blower
  • Page 31 – Fig. 28 — 42SG Furred-In Stack Dimensions
  • Page 32 – Fig. 29 — 42SH Cabinet Dimensions
  • Page 34 – Fig. 31 — 42SGM Furred-In Master Stack Dimensions
  • Page 35 – Fig. 32 — 42SGS Furred-In Slave Stack Dimensions
  • Page 36 – Fig. 33 — 42SU Universal Furred-In Stack Dimensions
  • Page 37 – Fig. 34 — 42SU Universal Furred-In Stack with Heater Dimensions
  • Page 39 – Fig. 36 — Return-Air Wall Panels for Furred-In Units — Panels with Frame
  • Page 41 – Fig. 37 — 42SJ Unit with Standard and Siamese
  • Page 43 – Valve packages for standard 2-pipe units are piped for same end; CW —
  • Page 44 – VERTICAL FLOOR UNITS — 42VA, VC; Pipe to connections extending from end of unit.; VERTICAL UNITS — 42DD; Pipe to stub connections extending from side of unit.; or; into optional piping compartment. Optional piping compart-
  • Page 45 – Fig. 43 — Symbols and Placement of Valves
  • Page 46 – Fig. 44 — Two-Way Motorized Control Valve Package; Electric Heat
  • Page 47 – COIL; Fig. 46 — Three-Way Motorized Control Valve Package
  • Page 48 – Fig. 47 — Valve Package without Motorized Control
  • Page 49 – Fig. 48 — Typical Drain Line Details; CAUTION
  • Page 50 – Table 5 — Piping Components; LEGEND; Cv —; Coefficient of Velocity; DX —; Direct Expansion
  • Page 51 – DESCRIPTION
  • Page 52 – Clean
  • Page 54 – Fig. 49 — Copper Water Tube and Joint Material Pressure Ratings; JOINT MATERIALS; THE ABOVE CHART IS FOR; Check all system component
  • Page 55 – Step 3 — Make Electrical Connections —; Fig. 50 — Manual Fan Control; means and overload protection as required.
  • Page 56 – Fig. 51 — Thermostatic Fan Control; Fig. 52 — Thermostatic Fan Control
  • Page 57 – Automatic Changeover — Unit-Mounted Thermostat (Line Voltage); 20-V WHT ALL OTHERS BLK
  • Page 58 – NEC CLASS 2 WIRING
  • Page 60 – Unit-Mounted Debonair
  • Page 61 – Auxiliary Heat — Remote/Wall-Mounted Debonair
  • Page 66 – not; Prevent dust and debris from settling in unit
  • Page 71 – I. Project Information
Loading the manual

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

Catalog No. 04-53420004-01

Printed in U.S.A.

Form 42-3SI

Pg 1

12-09

Replaces: 42-2SI

Installation, Start-Up and Service

Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

PHYSICAL DATA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

PRE-INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Unpack and Inspect Units

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

Protect Units From Damage

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

Prepare Jobsite for Unit Installation

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

Identify and Prepare Units

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

INSTALLATION

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-67

Step 1 — Place Units in Position

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

• 42C UNITS

• 42V UNITS

• 42D UNITS

• 42S UNITS

Step 2 — Make Piping Connections

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

• VALVE PACKAGES

• 42C,D,V DRAIN CONNECTIONS

• 42C,D,V WATER SUPPLY/RETURN

CONNECTIONS

• 42C,D,V STEAM CONNECTIONS

• 42C,D,V DIRECT EXPANSION (DX) REFRIGERANT

PIPING

• TEST AND INSULATE

Step 3 — Make Electrical Connections

. . . . . . . . . . 55

• STANDARD WIRING PACKAGES

Step 4 — Make Duct Connections

. . . . . . . . . . . . . . . 66

Step 5 — Frame and Finish Unit

. . . . . . . . . . . . . . . . . 66

Step 6 — Cut out Openings for Grilles and

Thermostats

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

Step 7 — Make Final Preparations

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

START-UP

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

SERVICE

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67,68

Excessive Condensation on Unit

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

To Clean Coil

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

Coil Air Vent (Manual or Automatic)

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

Check Drain

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

Fan Motor Bearings

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

Clean Fan Wheel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Clean Electric Heater

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Clean or Replace Air Filters

. . . . . . . . . . . . . . . . . . . . . 68

Warranty

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

START-UP CHECKLIST FOR 42C,D,S,V SERIES

FAN COIL AIR CONDITIONERS

. . . . . . . . CL-1, CL-2

SAFETY CONSIDERATIONS

Installation of this unit can be hazardous due to electrical com-

ponents and equipment location (such as a ceiling or elevated

structure). Only trained, qualified installers and service

mechanics should install and service this equipment.
When installing this unit, observe precautions in the literature,

labels attached to the equipment, and any other safety precau-

tions that apply.

• Follow all safety codes.

• Wear safety glasses and work gloves.

• Use care in handling and installing this accessory.

INTRODUCTION

This document contains general installation instructions for

the 42C,D,S,V unit fan coils. Refer to the unit-wiring diagram

installed on the blower housing or specific manufacturer litera-

ture for any other type of factory-mounted controls.

See drawings for unit configurations, dimensions, clearances,

and pipe connections. Refer to unit wiring label for all electrical

connections; follow NEC (National Electrical Code) and local

codes.

PHYSICAL DATA

Component weight data, shipping weights, and filter data of

the 42C,D,S,V units are provided in Tables 1-4.

WARNING

ELECTRIC SHOCK HAZARD To avoid the possibility of

electrical shock, open and tag all service switches before

installing this equipment.

42C,D,S,V Series

Fan Coil Air Conditioners

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Summary

Page 3 - Unpack and Inspect Units —

3 Table 3 — Physical Data — 42D Series Units *Calculate Operating Weight of unit: Shipping Weight + Coil Water Weight x Number of Coil Rows. Table 4 — Physical Data — 42S Series Units *Calculate Operating Weight of Unit: Shipping Weight + Coil Water Weight x Number of Coil Rows.†42SJ units require t...

Page 4 - Fig. 1 — 42CA Furred-In Horizontal Unit Dimensions

4 LEGEND 1 — Junction Box (remote mount) 2 — Flexible Metal Conduit 3 — Drain Conn, 7 / 8 -in. OD 4 — Tell-Tale Drain Conn, 5 / 8 -in. OD (optional) 5 — Drip Lip (optional) 6 — Hanger Slots (4), Rubber Grommethas 3 / 8 -in. Diameter Hole 7 — Supply Duct Collar, 1-in. 8 — Air Vent, 1 / 8 -in. MPT 9 —...

Page 6 - Fig. 3 — 42CE Furred-In Horizontal Unit with Plenum Dimensions

6 NOTES:1. Right hand unit with standard 3-row coil shown; left hand unit opposite. Coil connection locations are ± 5 / 8 -in. 2. Unit sizes 02 and 03 have one motor, one blower; sizes 04 through 08 have one motor, 2 blowers; sizes 10 and 12 have 2 motors, 4 blowers. 3. Standard 3-row coil shown.4. ...

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