may allow the use of a separate 3/4-in. condensate line (with
appropriate trap) to a place where the condensate will be notice-
able. The owner of the structure must be informed that when
condensate flows from the secondary drain or external condensate
pan, the unit requires servicing, or water damage will occur.
Install traps in the condensate lines as close to the coil as possible.
(See Fig. 16.) Make sure that the outlet of each trap is below its
connection to the condensate pan to prevent condensate from
overflowing the drain pan. Prime all traps, test for leaks, and
insulate traps if located above a living area.
Condensate drain lines should be pitched downward at a minimum
of 1 in. for every 10 ft. of length. Consult local codes for additional
restrictions or precautions.
Never operate unit without a filter or with filter access door
removed. Damage to blower motor or coil can result.
IMPORTANT:
Factory authorized filters must be used when
locating the filter inside the unit. (See Table 1.) For those
applications where access to an internal filter is impractical, a
field-supplied filter must be installed in the return duct system.
Step 7—Unit Start-Up
Refer to outdoor unit Installation Instructions for system start-up
instructions and refrigerant charging method details.
Step 8—Easy Select Configuration Taps
(Detail for Quick Reference Guide on back page)
EASY SELECT taps are used by the installer to configure a
system. ICM2 motor uses the selected taps to modify its operation
to a pre-programmed table of airflows. (See Table 2 and 3.)
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. 17 and 19.)
The 40FKA 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.
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. For increased
comfort select the narrowest kw range matching the heater size, for
example, 0-10 for 10-kw heater. This airflow must be greater than
the minimum CFM for electric heater application with the size
system installed for safe and continuous operation. (See Table 4
and 5 for airflow delivery and minimum CFM.) 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. 19, A as indicated.)
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. 19, B as indicated.)
SYSTEM TYPE - SELECT SYSTEM TYPE INSTALLED AC
OR HP
The type of system must be selected:
1. AC - Air conditioner
2. HP-COMFORT - Heat Pump Comfort provides approxi-
mately 315 CFM per ton for higher normal heating air delivery
temperature. Provides approximately 350 CFM per ton cool-
ing airflow for good humidity removal.
3. HP-EFF - Heat Pump Efficiency provides same airflow for
heating and cooling modes to increase overall HP efficiency;
approximately 350 CFM per ton.
The factory setting is AC. (See Fig. 19, C as indicated.)
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. HI provides 15 percent
airflow over nominal unit size selected and LO provides 10 percent
airflow below nominal unit size selected. Adjust selection options
Fig. 16—Condensate Trap and Unit
A02004
FILTER
ACCESS
PANEL
SECONDARY DRAIN REQUIRED
(USE FACTORY KIT OR
FIELD-SUPPLIED TRAP)
PRIMARY TRAP REQUIRED
(USE FACTORY KIT OR
FIELD-SUPPLIED TRAP OF
SUFFICIENT DEPTH.
STANDARD PRIMARY TRAPS
ARE NOT SUFFICIENT. SEE
FIGURE OF RECOMMENEDED
CONDENSATE TRAP)
9
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