16
513 01 3222 00
Specifications are subject to change without notice.
X
C
G
W2
R
C
W2
G
W1
O/B/Y2
Y2
W1
R
Y1
Y1
Ttypical
Thermostat
Corrections
T
H
E
R
M
O
S
T
A
T
(Note 1)
(Note 2)
(Note 3)
Note 1: Typical multi-function marking. Follow manufacturer’s configuration
instructions to select Y2.
Note 2: Y2 to Y2 connection required on single-stage cooling units when
integrated economizer function is desired
Note 3: W2 connection not required on units with single-stage heating.
Field Wiring
Central
Terminal
Board
C08575
Fig. 21 -- Low--Voltage Connections
RACEWAY
HOLE IN END PANEL (HIDDEN)
C08027
Fig. 22 -- Field Control Wiring Raceway
NOTE
:
If thru--the--bottom connections accessory is
used, refer to the accessory installation instructions for
information on routing power and control wiring.
Heat Anticipator Settings —
Set heat anticipator settings at 0.14 amp for the first stage
and 0.14 amp for second--stage heating, when available.
Electric Heaters
RAS units may be equipped with field--installed accessory
electric heaters. The heaters are modular in design, with
heater frames holding open coil resistance wires strung
through ceramic insulators, line--break limit switches and
a control contactor. One or two heater modules may be
used in a unit.
Heater modules are installed in the compartment below
the indoor (supply) fan outlet. Access is through the
indoor access panel. Heater modules slide into the
compartment on tracks along the bottom of the heater
opening. See Fig. 23, Fig. 24 and Fig. 25.
DISCONNECT MOUNTING
LOCATION
UNIT BLOCK-OFF
PANEL
OUTDOOR
ACCESS PANEL
INDOOR
ACCESS
PANEL
C08133
Fig. 23 -- Typical Access Panel Location (3--6 Ton)
DISCONNECT
MOUNTING
LOCATION
EMT OR RIGID CONDUIT
(FIELD-SUPPLIED)
SINGLE
POINT BOX
CENTER
POST
HEATER
COVERS
HEATER
MOUNTING
BRACKET
HEATER
MODULE
(LOCATION 2)
HEATER
MODULE
(LOCATION 1)
SINGLE POINT
BOX
MOUNTING
SCREW
BRACKET AND
CONDUIT
DRIP BOOT
MAIN
CONTROL
BOX
CONTROL WIRE TERMINAL BLOCK
MANUAL RESET
LIMIT SWITCH
C08134
Fig. 24 -- Typical Component Location
TRACK
FLANGE
C08135
Fig. 25 -- Typical Module Installation
