PROCEDURE 8—UNIT START-UP
Refer to outdoor unit Installation Instructions for system start-up instructions and refrigerant charging method details.
PROCEDURE 9—EASY SELECT CONFIGURATION TAPS
EASY SELECT taps are used by the installer to configure a system. ICM2 uses the selected taps to modify its operation to a pre-programmed table
of airflows. Airflows are based on system size or mode of operation and those airflows are modified in response to other inputs such as the need
for de-humidification. (See Fig. 16 and 17.)
The FK4C Fan Coil must be configured to operate properly with system components with which it is installed. To successfully configure a basic
system (see information printed on circuit board label located next to select pins), move the 6 select wires to the pins which match the components
used.
A.
AUX HEAT KW/CFM – Select heater range for size of electric heater installed
Installer must select the auxiliary heat airflow approved for application with kw size heater installed. If no heater is installed, this step can be
skipped. Each select pin is marked with a range of heaters for which airflow, also marked, is approved. The heater installed must fall within the
range selected for safe and continuous operation. Note that airflow marked is the airflow which will be supplied in emergency heat mode and
heating mode on air conditioners when electric heat is the primary heating source. In heat pump heating mode when electric heaters are energized,
the ICM2 will run the higher of heat pump heating airflow and electric heater airflow to ensure safe heater operation. The factory selection is the
largest heater range approved. (See Fig. 16, A as indicated.)
B.
AC/HP SIZE – Select system size installed
The factory setting for air conditioner or heat pump size is the largest unit meant for application with the model of fan coil purchased. Installer
needs to select air conditioner or heat pump size to ensure that airflow delivered falls within proper range for the size unit installed. This applies
to all operational modes with the exception of electric heat modes. (See Fig. 16, B as indicated.)
C.
SYSTEM TYPE – Select system type installed AC or HP
The type of system must be selected:
1. AC — Air conditioner
2. HP-COMFORT — Provides approximately 315 CFM per ton for higher normal heating air delivery temperature. Provides approximately
350 CFM per ton cooling airflow for good humidity removal.
3. HP-EFF — Provides same airflow for heating and cooling modes; approximately 350 CFM per ton.
The factory setting is AC. (See Fig. 16, C as indicated.)
D.
AC/HP CFM ADJUST – Select Medium, Low, or High airflow
To provide airflow at rates described above, the AC/HP ADJUST select is factory set to the nominal (nom) tap. The adjust selections HI/LO will
regulate airflow supplied for all operational modes, except non-heat pump heating modes, +15 percent and -10 percent respectively. The adjust
selection options are provided to adjust airflow supplied to meet individual installation needs for such things as noise, comfort, and humidity
removal. (See Fig. 16, D as indicated.)
E.
ON/OFF DELAY – Select desired time delay profile
Four motor operation delay profiles are provided to customize and enhance system operation. (See Fig. 16, E as indicated)
Selection options are:
1. The standard 90 sec off delay (Factory setting).
2. No delay option used for servicing unit or when a thermostat is utilized to perform delay functions.
Fig. 15—Condensate Trap and Unit
A97560
FILTER
ACCESS
PANEL
PRIMARY TRAP
(FACTORY-SUPPLIED
ON SOME UNITS)
SECONDARY DRAIN
(FIELD-SUPPLIED
TRAP REQUIRED)
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