Installation guide

Table 4_LED Control Function Light Code
CODE DEFINITION *
Constant flash No demand
10
No pause Stand by
1 flash
w/pause Low-speed operation 9
2 flashes
w/pause High-speed operation 8
3 flashes
Outdoor ambient thermistor failure 7
w/pause
4 flashes
Outdoor coil thermistor failure 6
w/pause
3 flashes
pause Thermistor out of range1- 5
4 flashes
5 flashes
pause Low pressure switch trip 4
1 flash
5 flashes
w/pause High pressure switch trip 3
2 flashes
6 flashes
w/pause Compressor Vc/V . trip 2
Constant light
No pause Board failure 1
No flash
*Function light signal order of importance in case of multiple signal request; 1
is most important
1-Check both thermistors to determine which is faulty
AIRFLOW SELECTION FOR FK4, FV4, OR 40FK FAN COILS
The FK4, FV4, and 40FK provide high- and low-speed blower
operation to match the capacities of compressor at high and low
speeds. To select recommended airflow, refer to the FK4, FV4, or
40FK Installation Instructions. The FK4, FV4, and 40FK utilizes
an EASY SELECT control board that allows the installing
technician to select proper airflows. The ORANGE SYSTEM
TYPE JUMPER wire should be set to HP EFF or
HP COMFORT. The BLUE ACiHP SIZE JUMPER is used to
select airflow to match the outdoor unit nominal size in tons of
cooling. The BLACK ACiHP CFM ADJUST jumper is used to
make slight adjustments to the selected airflow tonnage. (See
Fancoil Installation Instructions for setting required airflow.) This
fan coil has an adjustable blower offdelay factory set at 90 sec. for
high- and low-speed blower operation.
For other combinations of equipment consult the Product Data
Digest.
Step 1 l--Start-Up
To prevent compressor damage or personal injury, observe
the lbllowing:
• Do not overcharge system with refrigerant.
• Do not operate unit in a vacuum or at negative pressure.
• Do not disable low-pressure switch.
¥:I [qAli_0] "/1
DISCONNECT
PER N. E. C. AND/OR
LOCAL CODES
FIELD POWER
WIRING
FIELD GROUND
WIRING
CONTACTOR
_Fk__
O
-<29
GROUND
LUG
A91306
Fig. 11--Line Power Connections
Table 5--Defrost Dip Switch Settings
TIME DIP SWITCH #1 DIP SWITCH #2
30 up down
60 down up
90 down down
120 up up
AIRFLOW SELECTION FOR 58MVP FURNACES
The 58MVP Condensing Variable-Speed Furnaces provide high-
and low-speed blower operation to match the capacities of com-
pressor at high and low speeds. To select recommended airflow,
refer to the 58MVP Installation Instructions. The 58MVP utilizes
a control center that allows the installing technician to select
proper airflows. For adjustments to the manual switches labeled
AiC and CF and recommended switch positions, refer to Furnace
Installation Instructions lbr setting required airflow. High-speed
airflow is determined by the position of the AiC switches, and
low-speed airflow is determined by the position of the CF
switches.
To prevent personal injury wear safety glasses, protective
clothing, and gloves when handling refrigerant and observe
the following:
Back seating service valves are not equipped with Schrader
valves. Fully back seat (counter clockwise) valve system
before removing gage port cap.
repair or final unit disposah
Follow these steps to properly start up the system:
i. The outdoor unit is equipped with a crankcase heater which
operates when the compressor is OFF. Energize crankcase
heater 24 hr before starting unit. To energize heater only, set
indoor thermostat to OFF position and close power disconnect
to unit.
NOT!=: Starting the compressor without a mininmm of 12 hr of
crankcase heat prior to initial start-up, may result in compressor
chattering and possible damage to the compressor.
2. Fully back seat (open) liquid and vapor tube service valves.
3. Unit is shipped with valve stem(s) fi'ont seated and caps
installed. Replace stem caps after system is opened to refrig-
erant flow (back seated). Replace caps finger tight and tighten
additional 1/12 turn (20 ft-lb torque) with wrench.
4. Close electrical disconnects to energize system.
5. Set room thermostat at desired temperature. Be sure the set
point is below indoor ambient and is set low enough to
energize desired speed.
NOTI=: Carrier electronic thermostats are equipped with a 15-
minute staging timer. This timer prevents the dual capacity system
from operating at high capacity until unit has been operating in low
capacity for 15 minutes unless there is at least a 5°F difference
between room temperature and thermostat set point. To force high
capacity, adjust the set point at least 5° below room ambient for