CTC Union 71157P Installer Manual

NOTES - Conventional Systems
[1]0QUJPOBM7PMU"$DPNNPODPOOFDUJPO
[2]3FNPWFGBDUPSZJOTUBMMFEKVNQFSGPSEVBM
 USBOTGPSNFSTZTUFNT
[3]*OEVBMUSBOTGPSNFSTZTUFNTUSBOTGPSNFS
 DPNNPONVTUDPNFGSPNDPPMJOHUSBOTGPSNFS
[4]
*GOFFEFEGPSTZTUFN
Provide disconnect and overload protection
as required.
2 HEAT / 2 COOL Single or Dual transformer
Set System Type to 22CONV
Rh 7PMU"$1PXFSIFBUJOHUSBOTGPSNFS[note 2]
Rc 7PMU"$1PXFSDPPMJOHUSBOTGPSNFS[note 2]
W1 )FBU3FMBZ4UBHF
W2 )FBU3FMBZ4UBHF
Y1 $PNQSFTTPS3FMBZ4UBHF
Y2 $PNQSFTTPS3FMBZ4UBHF [note 4]
G 'BO3FMBZ
C 7PMU"$5SBOTGPSNFS$PNNPO[note 1, 3]
5ZQJDBM8JSJOH$POmHVSBUJPOT
NOTE: The “System Type” option will be configured in the Installer Settings section. The 71157P is a single
stage thermostat and not intended for multi stage equipment.
$POWFOUJPOBM4ZTUFNT
NOTE: Additional options are configured in the
Installer Settings section.
S1
S2
NOTES - Additional Wiring Options
[1]5IFTFUFSNJOBMTDBOCFVTFEUPDPOOFDUB
 $5$
®
JOEPPSPSPVUEPPSSFNPUFTFOTPS
"EEJUJPOBM8JSJOH0QUJPOT
*OEPPSPS0VUEPPS3FNPUF4FOTPS[note 1]
Hydronic Heat Only
Set System Type to )%
Rh 7PMU"$1PXFSIFBUJOHUSBOTGPSNFS
W1 ;POF7BMWF1PXFS0QFO
V3 ;POF7BMWF1PXFS$MPTF
G 'BO3FMBZ[note 4]
C 7PMU"$5SBOTGPSNFS$PNNPO[note 1]
Hydronic Heat / 1 Cool
Set System Type to )%
Rh 7PMU"$1PXFSIFBUJOHUSBOTGPSNFS[note 2]
Rc 7PMU"$1PXFSDPPMJOHUSBOTGPSNFS[note 2]
W1 ;POF7BMWF1PXFS0QFO
V3 ;POF7BMWF1PXFS$MPTF
Y1 $PNQSFTTPS3FMBZ
G 'BO3FMBZDPPMJOHGBOPOMZ
C 7PMU"$5SBOTGPSNFS$PNNPO[note 1, 3]
Installer Manual 4

CTC Union 71157P Specifications

General

Brand	CTC Union
Model	71157P
Category	Thermostat
Language	English