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FEM4X, FEM4P, REM4X, REM4P: Installation Instructions
THERMOSTAT
THERMOSTAT
R
G
C
W 2
Jumper
E
O
Y
Fig. 11 – Wiring Layout -Heat Pump Unit
(Cooling and 2-Stage Heat with no Outdoor Thermostat)
THERMOSTAT
Rc
G
C
W1
W2
YEL
Y2
O/B
Y1
* The yellow wire is used for high static only if necessary. If maximum airflow is desired,
connect the "G" thermostat wire to the yellow HS wire.
** Accessory outdoor thermostat
Fig. 12 – Wiring Layout -Heat Pump Unit
(Cooling and 2-Stage Heat for Manufactured Housing)
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
Transformer Information
SECONDARY
Fig. 13 – Transformer Connections
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to establish uninterrupted or unbroken ground could result in
personal injury and/or death.
According to NEC, NFPA 70, and local codes, the cabinet must have an
uninterrupted or unbroken ground to minimize personal injury 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.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
FANCOIL
HEAT PUMP
WIRING
(CONTROL)
RED
RED
R
GRY
BRN
C
WHT
W
BLU
VIO
ODTS
O
Y
FAN COIL
HEAT PUMP
(CONTROL)
(CONTROL)
R
R
G
C
C
W
W
2
2
W
3
E
HS*
ODTS **
O
Y
(Fig.
13).
BRN
RED
YEL
BLK
PRIMARY
GROUND CONNECTIONS
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.
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
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.
A200051
1 2 3 4 5
Speed Taps may be located on motor,
or on plug close to motor.
A190355
1 2 3 4 5
Fig. 14 – Motor Speed Selection
A94067
SPEED TAP SELECTION AT MOTOR CONNECTOR
Tap 1
Tap 2
Tap 3
Tap 4
Tap 5
† Electric heat airflow is same CFM as Tap 3, but with 0sec off delay.
‡ For high static applications, see Airflow Performance Tables for max airflow.
To change motor speeds disconnect the BLUE fan lead from motor
connector terminal #2 (factory default position) and move to desired
speed tap; 1, 2, 3, or 5
7
Table 3 – Speed Tap Selection
Low
Medium
High
Electric Heat †
Max ‡
(Fig.
14).
(Fig.
14).
A11048
90 sec off delay
90 sec off delay
90 sec off delay
0 sec off delay
0 sec off delay
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