Sequence Of Operations; Start- Up Procedure; Care And Maintenance - International comfort products FXM4X Installation Instructions Manual

INSTALLATION INSTRUCTIONS
Wiring Layout of Humidifier to Fan
Figure 20
THERMOSTAT
RED
R
GRY
G
WHT
W
WHT
BLU
VIO
BRN
Y
115V M

SEQUENCE OF OPERATIONS

A. CONTINUOUS FAN
Thermostat closes R to G. G sends signal direct to motor which
completes circuit to indoor blower motor. When G is
de- energized, there is a 90 second off delay before indoor
blower motor stops.
B. COOLING MODE
Thermostat energizes R to G, R to Y, and R to O (heat pump
only). G sends signal direct to motor, which completes circuit to
indoor blower motor. When G is de- energized, there is a 90
second off delay before indoor blower motor stops.
C. HEAT PUMP HEATING MODE
Thermostat energizes R to G and R to Y. G sends signal direct
to motor, which completes circuit to indoor blower motor. When
G is de- energized, there is a 90 second off delay before indoor
blower motor stops.
D. HEAT PUMP HEATING WITH AUXILIARY
ELECTRIC HEAT
Thermostat energizes R to G, R to Y, and R to W. G energizes
indoor blower motor. W energizes electric heat relay(s) which
completes circuit to heater element(s). When W is
de- energized, electric heat relay(s) open, turning off heater
elements. When G is de- energized, the indoor blower motor
is de- energized and stops.
496 01 5503 01
Coil with Electric Heat
FAN COIL
(CONTROL)
R
G
W
2
W
3
E
AIR COND.
C
C
Y
HUMIDISTAT
Specifications are subject to change without notice.
Fan Coils: FEM4X, FEM4P, REM4X, FXM4X
E. ELECTRIC HEAT OR EMERGENCY HEAT MODE
Thermostat closes R to W. W energizes electric heat relay(s)
which completes circuit to heater element(s). W also
energizes the indoor
de- energized, electric heat relay(s) opens and the indoor
blower motor is de- energized and stops.

START- UP PROCEDURE

Refer to outdoor unit Installation Instructions for system
start- up instructions and refrigerant charging method
details.

CARE AND MAINTENANCE

The system should be regularly inspected by a qualified
service technician. Consult the servicing dealer for
recommended frequency.
Between visits, the only consumer service recommended or
required is air filter maintenance and condensate drain
operation.
Air Filter
Inspect air filters at least monthly and replace or clean as
required. Disposable type filters should be replaced.
Reusable type filters may be cleaned by soaking in mild
detergent and rinsing with cold water. Install filters with the
arrows on the side pointing in the direction of air flow.
Condensate Drain
During the cooling season check at least monthly for free flow
of drainage and clean if necessary.
CAUTION
!
PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in poor unit
performance and/or product damage.
Never operate unit without a filter. Factory authorized filter
kits must be used when locating the filter inside the unit.
For those applications where access to an internal filter is
impractical, a field- supplied filter must be installed in the
return duct system.
blower motor. When W is
13