42C,D,S,V Series Fan Coil Air Conditioners
Installation, Start-Upand Service Instructions
Table 2 — Physical Data — 42V Series Units
Table 1 — Physical Data — 42C Series Units
PRE-INSTALLATION
Fig. 1 — 42CA Furred-InHorizontal Unit Dimensions
UNIT
a42-4101
A42-4102
A42-4103
A42-4104
A42-4105
Fig. 7 - 42CG Horizontal Cabinet Unit Dimensions
LEGEND 1 — Junction Box, 4 in. x 4 in
A42-4149
Front Supply, and Bottom Return Dimensions
a42-4150
a42-4151
Front Supply, and Rear Return Dimensions
a42-4152
Front Supply, Rear Return, and Heater Dimensions
UNIT
UNIT SIZE
Fig. 15 — 42VA Furred-InVertical Unit Dimensions
Fig. 16 - 42VB Vertical Cabinet Unit Dimensions
LEGEND 1 — Standard Stamped Supply Grille
Fig. 18 - 42VC Furred-InLowboy Unit Dimensions
LEGEND 1 — Unit-MountedControl Box Optional
Fig. 20 — 42VE Cabinet Lowboy Unit Dimensions
LEGEND
A42-4116
Fig. 22 — 42VG Furred-InWall Unit Dimensions
a42-4120
A42-4121
A42-4122
Blower
Motor
A42-4123
Blower
Motor
A42-4124
A42-4125
Fig. 28 — 42SG Furred-InStack Dimensions
A42-4126
Fig. 29 — 42SH Cabinet Dimensions
A42-4127
A42-4128
Fig. 31 - 42SGM Furred-InMaster Stack Dimensions
A42-4129
Fig. 32 — 42SGS Furred-InSlave Stack Dimensions
a42-4154
a42-4155
a42-4169
a42-4167
A42-4173
A42-4171
A42-4168
PANEL AND FRAME DIMENSIONS in
A42-4170
A42-4161
INSTALLATION Step 1 — Place Units in Position
Fig. 38 — 42SJ Unit as Shipped
Fig. 39 — 42SJ Unit Installation
Fig. 37 — 42SJ Unit with Standard and Siamese
Risers
7.Attach unit risers
Fig. 41 — Pipe Connection Configurations
Field Piping Connections
Hydronic Coil Arrangement
42VG
a42-4177
Fig. 43 — Symbols and Placement of Valves
Fig. 44 — Two-WayMotorized Control Valve Package
a42-4174
a42-4175
COIL
COIL
a42-4176
COIL
COIL
COIL
COIL
COIL
COIL
42D Unit Shown
Fig. 48 - Typical Drain Line Details
Table 5 — Piping Components
Table 5 — Piping Components cont
Table 5 - Piping Components cont
SYMBOL/SKETCH
Table 5 — Piping Components cont
SYMBOL/SKETCH
JOINT MATERIALS
Fig. 50 — Manual Fan Control
Fig. 51 — Thermostatic Fan Control 2-PipeSystem
Remote/Wall-MountedThermostat Line Voltage
a42-4060
a42-4059
Unit-MountedDebonair Thermostat 24-v,Duct Sensor
a42-4061
Unit-MountedThermostat Line Voltage
a42-4066
THERMOSTAT PART #
LIMIT SWITCH
THERMOSTAT #33CSSN2-FC
VALVE
Thermostat 2-PipeTotal Electric Heat with Valve Con- trol— With this system, the complete heating requirement for the space is provided by the electric heater; the water system is never changed over for heating. It is therefore possible, just as with 4-pipesystems, to have heating or cooling at any time of the year
a42-4067
a42-4073
Unit-MountedThermostat Line Voltage
Remote/Wall-MountedThermostat Line Voltage
THERMOSTAT #33CSSN2-FC
a42-4072
Unit-MountedThermostat Line Voltage
a42-4079
a42-4078
Remote/Wall-MountedThermostat Line Voltage
Remote/Wall-MountedDebonair Thermostat
To Clean Coil
SERVICE
Step 7 — Make Final Preparations
START-UP
c.Reinstall fan deck if removed
Page
Catalog No.
Copyright 2009 Carrier Corporation
Printed in U.S.A
Form 42-3SI
I.Project Information
INSPECTION, INSTALLATION, AND START-UPCHECKLIST
FAN AND MOTOR