C. 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 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 - 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. 17, 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. HI provides 15 percent airflow over nominal unit size
selected and LO provides 10 percent airflow below nominal unit size selected. 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. 17, D as indicated.)
E. ON/OFF DELAY - Select desired time delay profile
NOTE: Delay selections are active in cooling and heat pump heating modes only. Auxiliary heating modes have a 1 minute off delay and zero
on delay programmed into the ECM motor that cannot be overridden.
Four motor operation delay profiles are provided to customize and enhance system operation. (See Fig. 17, E as indicated)
Selection options are:
1. The standard 90 sec off delay (Factory setting) at 100 percent airflow.
2. No delay option used for servicing unit or when a thermostat is utilized to perform delay functions.
3. A 30 sec on delay with no airflow/90 sec off delay at 100 percent airflow profile is used when it is desirable to allow system coils time
to heat-up/cool-down in conjunction with the airflow.
4. ENH, enhanced selection, provides a 30 sec on delay with no airflow/ plus 150 sec at 70 percent airflow/ no off delay for added comfort.
This profile will minimize cold blow in heat pump operation and could enhance system efficiency.
Table 1—Filter Kits
FILTER KIT
(12 PACK)
PART NUMBER SIZE USED WITH
KFAFK0212MED 002,
KFAFK0312LRG 003, 005
KFAFK0412XXL 006
Fig. 17—Detail of FV4B Printed-Circuit Board
A95275
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
0-20
1100
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
0-15
875
0-10
675
0
90
30
90
0
0
0-5
625
TM
A
B
C
D
E
F
KW
CFM
LOW VOLTAGE TERMINAL BLOCK
PRINTED CIRCUIT BOARD
MOLEX 12-PIN CONNECTOR
—12—
To Next Page
Loading...
