Ecobee SMART Installation Manual page 8

Equipment Interface
Y
W O/B
G
W2 AUX
R/H
R/C
ACC1
3rd Stage
ACC1r
Heat
ACC2
2nd Stage
ACC2r
Cool
ACC3
Humidi er
ACC3r
1 Stage Heat/Cool With 2 Stage Auxiliary Heat (Duel Fuel) With Humidi er Accessory
NOTE Indicates jumper. Non Powered Accessories will require a jumper from RH | RC to ACC1, ACC2, ACC3 for a 24V feed.
factory installed jumper.
Diagram indicates 24V humidi er terminal. If your furnace control board does not have this, you must use a 110V/24V step down transformer.
Equipment Interface
Y
W O/B
G
W2 AUX
R/H
R/C
ACC1
Aux Heat
Stage 2
ACC1r
ACC2
ACC2r
ACC3
Humidi er
ACC3r
CONFIGURE ACC2 - Emerg Heat 2 | ACC3 - Humidi er
Single Stage Heat/Cool , Dual Stage Auxiliary Heat with Humidifer
NOTE Indicates jumper. Non Powered Accessories will require a jumper from RH | RC to ACC1, ACC2, ACC3 for a 24V feed.
factory installed jumper.
11 Installing The Smart Thermostat
Three Stage Heat 2 Stage Cool With 1 Accessories
Furnace
Y1
W1
G
W2
R
Y2
W3
24V
Hum
C
Three Stage Heat, Two Stage Cool with One Accessory
1-Speed Heat Pump
Fan Coil
O
W2
W2
W1
Y/Y2
G
R
C
Humidi er
C
24V
Air Conditioner
Y1
Y2
R
C
Humidi er
C
HRV
Comp2
Humidi er
NOTE Indicates jumper. Non Powered Accessories will require a jumper from RH | RC to ACC1, ACC2, ACC3 for a 24V feed.
factory installed jumper.
Diagram indicates 24V humidi er terminal. If your furnace control board does not have this, you must use a 110V/24V step down transformer.
O
Y
R
C
Aux Heat
Stage 2
Comp2
Humidi er
C
24V
C 110V
NOTE Indicates jumper. Non Powered Accessories will require a jumper from RH | RC to ACC1, ACC2, ACC3 for a 24V feed.
factory installed jumper.
Diagram indicates 24V humidi er terminal. If your furnace control board does not have this, you must use a 110V/24V step down transformer.
Two Stage Heat/Cool With 1 Stage Auxiliary Heat (Duel Fuel) with 2 Accessories
Equipment Interface
Y
W O/B
G
W2 AUX
Hum
R/H
R/C
ACC1
ACC1r
ACC2
ACC2r
ACC3
ACC3r
Two Stage Heat/Cool Two Stage Auxiliary Heat (Duel Fuel) With One Accessory
Dual Stage Heat/Cool, Single Stage Auxiliary Heat with Two Accessories
Equipment Interface
Y
W1
W O/B
G
W2
W2 AUX
R/H
R/C
Hum
ACC1
ACC1r
ACC2
ACC2r
ACC3
ACC3r
Dual Stage Heat/Cool, Dual Stage Auxiliary Heat with One Accessory
indicates a jumper. Non-powered accessories require a jumper
from RH / RC to ACC1, ACC2, ACC3 for a 24V feed.
Furnace Heat Pump
Y
O
W Y1
G
W2
R
Y2
R
C
C
Humidi er
24V
C
HRV
24V
C
Heat Pump
Furnace
Y1 O
Y1
G W2
Y2
R R
Y2 C
Humidi er
C
24V
C
Installing The Smart Thermostat 12