Installation Manual
Installation Guide
4
69-2609EFS—13
ENGLISH
Wiring
2H/1C Heat
Pump System
TH2210DH/TH1210DH
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
TH2110DH/TH1110E1/
TH1110DH
(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
TH2110DH/
TH1110E1/
TH1110DH
(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
TH1100DH
W Heat relay
C 24Vac common [3]
R Power [1]
1H/1C Heat
Pump System
TH2110DH/
TH1110E1/TH1110DH [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
TH2110DH/TH1110E1/TH1110DH
W Heat relay
C 24Vac common [3]
R [R+Rc joined by jumper]
Rc Power [1]
Heat Only
System with Fan
TH2110DH/TH1110E1/TH1110DH
G Fan relay
W Heat relay
C 24 Vac common [3]
R [R+Rc joined by jumper]
Rc Power [1]
Cool Only
System
TH2110DH/TH1110E1/TH1110DH
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 sys-
tems.
[3] Optional 24 Vac common connection.
[4] Common connection must come from
cooling 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
M32809
TH2210DH/TH1210DH
Not
Used
RcCYWGR
M32811
RcCYWGR
M32812
RcCYWGOBR
M32813
RcCWR
M32814
RcCWGR
M32815
RcCYGR
M32816
See [notes] below
M32817
RW C
Not
Used