D. Dehumidify Capability with Standard Humidistat Connection
Latent capacities for systems using the FK4C Fan Coil are better than average systems. If increased latent capacity is an application requirement,
the field wiring terminal block provides connection terminals for use of standard humidistat. The FK4C Fan Coil will detect humidistat contacts
opening on increasing humidity and reduce its airflow to approximately 80 percent of nominal cooling mode airflow. This reduction will increase
system latent capacity until humidity falls to a level which causes humidistat to close its contacts. When contacts close, airflow will return to 100
percent of selected cooling airflow. To activate this mode, remove Jumper J1 and wire in a standard humidistat. (See Fig. 21.)
E. Dehumidify and Super Dehumidify Capabilities
This model fan coil is capable of responding to a signal from indoor system control (thermostat, thermidistat, zoning control) to operate in comfort
control modes such as Super Dehumidify Mode. Consult literature provided with indoor system control to determine if these operating modes are
available, and to see control set up instructions. No special setup or wiring of fan coil is required.
Fig. 17—PCB Wiring Arrangement
A95276
EASY SELECT
D
H
R
W
1
W
2
Y
1
Y/ Y
2
G
O
C
HEATER/MOTOR
CEBD430226-01B CESS430226-01B
AUX HEAT KW/CFM
0-30
1075
SEC1 SEC2
J1
J2
AC/HP SIZE
036 030 024 018
AC
HP-COMFORT
HP-EFF
NOM HI
ENH
LO
SYSTEM TYPE
AC/HP CFM ADJUST
ON/OFF DELAY
CONTINUOUS FAN
MED HI YELLO
AUX1 HUM1
AUX2
24VAC
GRY
HUM2
YEL
WHT
BLK
ORN
BLU
VIO
0-20
875
0-10
725
0
90
30
90
0
0
0-5
625
TM
12-PIN MATE-N-LOCK
ELECTRIC HEAT CONNECTOR
—14—
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