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 2.) 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. 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. 19 and 17.)
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 a 10-kw heater. 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
Fig. 14—Recommended Condensate Trap
A95321
2
1
⁄4″
2
1
⁄4″
UNIT
Fig. 15—Insufficient Condensate Trap
A95320
DO NOT USE SHALLOW RUNNING TRAPS!
Fig. 16—Condensate Trap and Unit
A98239
FILTER
ACCESS
PANEL
PRIMARY TRAP
(FIELD-SUPPLIED
TRAP REQUIRED)
SECONDARY DRAIN
(FIELD-SUPPLIED
TRAP REQUIRED)
Table 2—Filter Kits
FILTER KIT
(12 PACK)
PART NUMBER SIZE USED WITH
KFAFK0212MED 002,
KFAFK0312LRG 003, 005
KFAFK0412XXL 006
10
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