Submittal Sheet

FIGURE A - TYPE K42 FIGURE B - TYPE K84
FIGURE C - TYPE K120
Dimensions shown
in English and metric ( ).
Electrical Connections Must use wires suitable for at least 194°F (90°C).
Twin-Flo III Dimensional Data
WIRING DIAGRAM 3
TWIN-FLO
ROOM T'STAT
12
115V LINE
CIRCULATOR
ZONE VALVE
W/AUX. SW.
TRANS
LOW VOLT
115/24V
MIN
MAX
T-STAT
(NEUTRAL)L2
115/1/60
LINE IN
L1
BLUE
(HOT)
SPDT
2
1
3
BLOWER
WHT
MOTOR
BLK
RED
CAT-68254-A
BLUE
OFF
WIRING Diagram 3
Connection through a circulator or zone auxiliary switch may also be used to permit instant shutdown of the blower as
the circulator stops (see diagram #3).
MIN
MAX
T-STAT
(NEUTRAL)L2
(GND)
WIRING DIAGRAM 1
GREEN SCREW
115/1/60
LINE IN
L1
BLUE
(HOT)
SPDT
2
1
3
BLOWER
WHT
MOTOR
BLK
RED
115V LINE
CAT-68252-A
BLUE
OFF
WIRING DIAGRAM 2
LINE VOLT
ROOM T'STAT
RW
MIN
MAX
T-STAT
(NEUTRAL)L2
(GND)
GREEN SCREW
115/1/60
LINE IN
L1
BLUE
(HOT)
SPDT
2
1
3
BLOWER
WHT
MOTOR
BLK
RED
115V LINE
CAT-68253-A
BLUE
OFF
WIRING DIAGRAM 1 Direct 115V line WIRING DIAGRAM 2 Line voltage type room thermostat