Lennox GCS16-653-75

Page 54
H-High Altitude Kit (CGA only)
Optional CGA high altitude kit is not available at this time.
If derate is required, follow the instructions in table 16.
I-Compressor Crankcase Heater
GCS16R and GCS16H (208/230v) only
Optional compressor crankcase heater is available for
field installation in any residential unit (208/230v only).
The heater is a 45watt bellybandtype and is wired di
rectly to line voltage.
J-DF16 Downflow Filter Kit
Optional downflow filter kit may be added to any
GCS16-410/510/650 unit. The kit provides a means for fil
tering (downflow) return air inside the cabinet. The kit in
cludes rails which install in the blower compartment and
allow the (one inch thick) filter (furnished) to slide in. Two
kits are available. DF16-41 (figure 66) installs in -410 units
and DF16-65 (figure 67) installs in -510/-650 units.
FIGURE 66
BLOWER
LEFT FILTER
BRACKET
RIGHT FILTER
BRACKET
DF16-41 DOWNFLOW FILTER KIT
SECURING
SCREW
(RIGHT SIDE)
SECURING
SCREW
FILTER BRACKET
FILLER PIECE
(REMOVE FOR 2"
FILTER)
SECURING
SCREW
(LEFT SIDE)
FIGURE 67
DF16-65 DOWNFLOW FILTER KIT
BLOWER
LEFT FILTER
BRACKET
RIGHT FILTER
BRACKET
SECURING
SCREW
SECURING SCREW
FILTER BRACKET
FILLER PIECE
(REMOVE FOR 2" FILTER)
SECURING
SCREW
K-Timed-Off Control Kit (Figure 68)
Optional field installed timedoff controls prevent the
GCS16 compressor from short cycling. After a thermostat
demand, automatic reset timedoff control keeps com
pressor off for 3-7 minutes.
NOTE - Some electronic thermostats have built in
timedoff delay. Field installed timedoff delay is not
needed.
3
2
FIGURE 68
Y1
W1
G
4
5
6
7
8
9
10/R
11
Y2
W2
14
15
TB1
TERMINAL
STRIP*
LOSS OF CHARGE
SWITCH*
HIGH PRESSURE
SWITCH*
GCS16 UNIT CONTROL BOX
FIELD WIRING TIMED-OFF CONTROL
ALL UNITS
24VAC FIELD INSTALLED
24VAC FACTORY INSTALLED
TIMED OFF
CONTROL
*Not furnished on all units.
DEMAND FROM
THERMOSTAT
TERMINAL Y
J3-2*
1
Operation:
1- If the compressor has been deenergized for more
than 3-7 minutes, there will be a 3-10 second delay af
ter receiving a thermostat demand before the com
pressor can be energized.
2- After the compressor has been deenergized, the
timedoff control keeps the compressor deenergized
for 3-7 minutes.