INSTALLER'S GUIDE
18-HH08D10-2
Page 10
Wiring Diagram No. 2
THT1248
ON MASTER SCHEDULER *
NOTE 7
VARIABLE SPEED FURNACE WITH TWO STEP OR TWO COMPRESSOR DUAL FUEL HEAT PUMP
ADD TAYSTAT250A FOR RESTRICTED MODE OPERATION DSW-2 "ON"
* ONLY ON IF OTHER DIGITAL SENSORS ARE USED.
ADD O.D.T. FOR RESTRICTED
MODE OPERATION (TAYSTAT250A)
ONLY USE ON VER. 2.8 or LATER.
(OFF) RES. AIRFLOW
(ON) COMML AIRFLOW
DSW9
DSW10
DSW11
(OFF) ONE & TWO STAGE AIRFLOW
(ON) TWO STEP SCROLL AIRFLOW
YL
BK / X2
MULTI-STAGE COMPRESSORS
7. REMOVE BK JUMPER ON VS AIR HANDLERS OR CUT BK JUMPER ON VS FURNACE INTERFACE BOARD.
FOR MULTI-STAGE COMPRESSORS (OR TWO-STAGE HEATING)
*
* NOT WITH
ZUSTAT031
Figure 9
