Cooling Mode; Start-Up Procedures; Care And Maintenance - Carrier PF4MNA Installation Instructions Manual

PF4MNA: Installation Instructions
FAN RELAY
230VAC
COM
SPT
WIRE
NUT
208/230VAC
CONVERSION KIT
TRANSFORMER
TO
BLOWER
MOTOR
Fig. 22 – Wiring Layout of Electronic Air Cleaner
to Fan Coil
Sizes 018, 024, 030 , 036, 042, 048, & 060
THERMOSTAT
R
G
C
W
2
WHT
E
L
O
Y
FAN HUMIDIFIER
115V M
Fig. 23 – Wiring Layout of Humidifier to Heat Pump
THERMOSTAT
RED
R
GRY
G
W
WHT
Y
FAN HUMIDIFIER
115V M
Fig. 24 – Wiring Layout of Humidifier to Fan Coil
with Electric Heat
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
CONTROL BOARD
R G T C C C
NO NC
NO NC
COM
24VAC
COM
COM 208/
230
TO EAC
FROM MOLEX
PLUG AND
TRANSFORMER
(IN UNIT)
FAN COIL
HEAT PUMP
(CONTROL)
(CONTROL)
RED
R
R
GRY
G
BRN
C
C
WHT
W
2
BLU
W
3
VIO
E
W
2
O
Y
RELAY
HUMIDISTAT
FAN COIL
(CONTROL)
R
G
WHT
W
2
BLU
W
3
VIO
E
BRN
AIR COND.
C
C
Y
HUMIDISTAT
SEQUENCE OF OPERATION
CONTINOUS FAN
Thermostat closes R to G. G energizes fan relay on PCB which
completes circuit to indoor blower motor. When G is de-energized, there
is a 90 second delay before relay opens.

COOLING MODE

Thermostat energizes R to G, R to Y, and R to O (heat pump only). G
energizes fan relay on PCB which completes circuit to indoor blower
motor. When G is de-energized, there is a 90 second delay before fan
relay opens.
HEAT PUMP HEATING MODE
Thermostat energizes R to G and R to Y. G energizes fan relay on PCB
which completes circuit to indoor blower motor. When G is
de-energized, there is a 90-sec delay before fan relay opens.
HEAT PUMP HEATING WITH AUXILIARY
ELECTRIC HEAT
A03011
Thermostat energizes R to G, R to Y, and R to W. G energizes fan relay
on PCB which completes circuit to 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 there is a 90 second delay before fan
relay opens.
ELECTRIC HEAT OR EMERGENCY HEAT MODE
Thermostat closes R to W. W energizes electric heat relay(s) which
completes circuit to heater element(s). Blower motor is energized
through normally closed contacts on fan relay. When W is de-energized,
electric heat relay(s) opens.

START-UP PROCEDURES

Refer to outdoor unit Installation Instructions for system start-up
instructions and refrigerant charging method details.
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 may 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 air duct system.
A95294

CARE AND MAINTENANCE

To continue high performance and minimize possible equipment failure,
it is essential that periodic maintenance be performed on this equipment.
Consult your local dealer as to the proper frequency of maintenance
contract.
The ability to properly perform maintenance on this equipment requires
certain mechanical skills and tools. If you do not possess these, contact
your dealer for maintenance. The only consumer service recommended
or required is filter replacement or cleaning on a monthly basis.
A95295
9
CAUTION
!