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Installation Guide
4
69-2800EFS—01
Wiring
2H/1C Heat
Pump System
TH2210DV/TH1210DV
B Changeovervalveenergizedin
heating[5]
O Changeovervalveenergizedin
cooling[5]
G Fanrelay
Y Compressor contactor
Aux/E Auxiliaryheatrelay
C 24Vaccommon[3]
R Power[1]
1H/1C System
TH2110DV/
TH1110DV
(1 transformer)
G Fanrelay
Y Compressor contactor
W Heat relay
C 24Vaccommon[3]
R [R+Rcjoinedbyjumper]
Rc Power[1]
1H/1C System
TH2110DV/
TH1110DV
(2 transformers)
G Fanrelay
Y Compressor contactor
W Heat relay
C 24Vaccommon[3,4]
R Power(heatingtransformer)[1,2]
Rc Power(coolingtransformer)[1,2]
Heat Only System
TH1100DV
W Heat relay
C 24Vaccommon[3]
R Power[1]
1H/1C Heat
Pump System
TH2110DV/TH1110DV [7]
B Changeovervalveenergizedin
heating[5]
O Changeovervalveenergizedin
cooling[5]
G Fanrelay
Y Compressorcontactor[6]
W [W+Yjoinedbyjumper]
C 24Vaccommon[3]
R [R+Rcjoinedbyjumper]
Rc Power[1]
Heat Only
System
TH2110DV/TH1110DV
W Heat relay
C 24Vaccommon[3]
R [R+Rcjoinedbyjumper]
Rc Power[1]
Heat Only
System with
Fan TH2110DV/TH1110DV
G Fanrelay
W Heat relay
C 24Vaccommon[3]
R [R+Rcjoinedbyjumper]
Rc Power[1]
Cool Only
System
TH2110DV/TH1110DV
G Fanrelay
Y Compressor contactor
C 24Vaccommon[3]
R [R+Rcjoinedbyjumper]
Rc Power[1]
NOTES
Wirespecifications:
Use18-to22-gaugethermostatwire.
Shieldedcableisnotrequired.
[1] Powersupply.Providedisconnectmeansand
overloadprotectionasrequired.
[2] Removejumperfor2-transformersystems.
[3] Optional24Vaccommonconnection.
[4] Commonconnectionmustcomefromcool-
ingtransformer.
[5] UseeitherOorBterminalsforchangeover
valve.
[6] Useasmallpieceofwire(notsupplied)to
connectWandYterminals.
[7] SetfanoperationswitchtoHeat Pump
(seepage5).
Wiring guide — conventional and heat pump systems
CYGO
BR
Aux/
E
M32809B
TH2210DV/TH1210DV
Not
Used
RcCYW
GR
M32811
RcCYW
GR
M32812
RcCYWGO
BR
M32813
RcC
WR
M32814
RcCW
GR
M32815
RcCY
GR
M32816
See[notes]below
M34801
RW C