INSTALLATION INSTRUCTIONS
Fan Coils: FEM4X, FEM4P, REM4X, FXM4X
496 01 5503 02
9
Specifications are subject to change without notice.
Figure 10
Wiring Layout
−
Air Conditioning
Unit (Cooling and 1
−
Stage Heat)
R
G
W
Y
THERMOSTAT
R
G
W
2
W
3
E
C
FAN COIL
(CONTROL)
C
Y
AIR COND.
RED
GRY
WHT
WHT
BLU
VIO
BRN
Figure 11
Wiring Layout
−
Heat Pump Unit
(Cooling and 2
−
Stage Heat with No
Outdoor Thermostat)
R
G
C
E
L
O
Y
THERMOSTAT
R
R
C
O
Y
G
C
W
2
W
2
W
2
W
3
E
FAN COIL
(CONTROL)
HEAT PUMP
(CONTROL)
RED
GRY
BRN
WHT
BLU
VIO
Figure 12
Wiring Layout
−
Heat Pump Unit
(Cooling and 2
−
Stage Heat for
Manufactured Housing)
R
E
W
2
R
C
THERMOSTAT
FAN COIL
(CONTROL)
HEAT PUMP
(CONTROL)
G
C
W
2
E
L
G
C
R
O
Y
ODTS
O
Y
W
3
W
2
Transformer Information
Transformer is factory wired for 230V operation. For 208V
applications, disconnect the black wire from the 230V terminal
on transformer and connect it to the 208V terminal (refer to
Figure 13
Transformer Connections
230
C
208
SECONDARY
PRIMARY
BLACK
YELLOW
RED
BROWN
C. GROUND CONNECTIONS
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to establish uninterrupted or unbroken ground
could result in personal injury and/or death.
According to NEC, ANSI/NFPA 70, and local codes, the
cabinet must have an uninterrupted or unbroken ground
in order to minimize potential for personal injury or death
if an electrical fault should occur. The ground may consist
of electrical wire or metal conduit when installed in
accordance with existing electrical codes. If conduit
connection uses reducing washers, a separate ground
wire must be used.
NOTE:
Use UL listed conduit and conduit connectors for
connecting supply wire(s) to unit to obtain proper grounding.
Grounding may also be accomplished by using grounding lugs
provided in control box.
D. MINIMUM CFM AND MOTOR SPEED SELECTION
Units with or without electric heaters require a minimum CFM.
Refer to the unit wiring label to ensure that the fan speed
selected is not lower than the minimum fan speed indicated.
Fan speed selection is done at the fan motor. To change motor
speeds, reposition wire at fan motor speed terminals labeled
1
−
2
−
3 (see
.
Units with or without electric heaters
require a minimum CFM. Refer to the unit wiring label to ensure
that the fan speed selected is not lower than the minimum fan
speed indicated.
SPEED TAP SELECTION AT MOTOR CONNECTOR
Tap 1
Low
90 sec off delay
Tap 2
Medium
90 sec off delay
Tap 3
High
90 sec off delay
Tap 4
Electric Heat †
0 sec off delay
Tap 5
Max ‡
0 sec off delay
† Electric heat airflow is same CFM as Tap 3, but with 0
sec off delay.
‡ For high static applications, see Airflow Performance
Tables for max airflow.