Sample Wiring Diagrams - Daikin TSTATD4271C Installation And Maintenance Manual

Sample Wiring Diagrams

Table 5: Conventional Heating and Cooling Systems
3 Wire, Heat Only
Residential & Commercial 1 Stage Heating with no Fan.
R
C
W1/O/B
J1 =
J2 =
J3 =
4 Wire, Cool Only
Residential & Commercial 1 Stage Cooling.
R
C
Y1
J1 =
J2 =
J3 =
5 Wire, 1 Stage Cooling, 1 Stage Heat
Residential & Commercial 1 Stage Cooling, with 1 stage Gas Heat.
R
C
W1/O/B
Y1
G
J1 =
J2 =
J3 =
5 Wire, 1 Stage Cooling, 1 Stage Heat
Residential & Commercial 1 Stage Cooling, with 1 stage Electric Heat.
R
C
W1/O/B
Y1
G
J1 =
J2 =
J3 =
8 Wire, 2 Stage Cooling, 3 Stage Heat
Residential & Commercial 2 Stage Cooling, with 3 stage Gas Heat
R
C
W1/O/B
W2
W3
Y1
Y2
G
J1 =
J2 =
J3 =
IM 1227 • MODELS DC THERMOSTATS
7-D
24VAC Power
24VAC Common
1st Stage Heat
Gas/Elec
O (not used)
Gas
24VAC Power
24VAC Common
1st Stage CoolG Fan
Gas/Elec
O (not used)
Gas
24VAC Power
24VAC Common
1st Stage Heat
1st Stage Cool
Fan
Gas/Elec
O (not used)
Gas
24VAC Power
24VAC Common
1st Stage Heat
1st Stage Cool
Fan
Gas/Elec
O (not used)
Electric
24VAC Power
24VAC Common
1st Stage Heat
2nd Stage Heat
3rd Stage Heat
1st Stage Cool
2nd Stage Cool
Fan
Gas/Elec
O (not used)
Gas
20
P C
ay rogrammable ommerCial
Table 6: Heat Pump Systems
5 Wire, 1 Stage Cooling, 1 Stage Heat
Residential & Commercial Heat Pump with'O' Reversing Valve
R
C
W1/O/B
Y1
G
J1 =
J2 =
J3 =
6 Wire, 1 Stage Cooling, 2 Stage Heat
Residential & Commercial Heat Pump with 'O' Reversing Valve
R
C
W1/O/BY1
W2
G
J1 =
J2 =
J3 =
7 Wire, 2 Stage Cooling, 3 Stage Heat
Residential & Commercial Heat Pump with 'O' Reversing Valve.
R
C
W1/O/B
W2
Y1
Y2
G
J1 =
J2 =
J3 =
Setup Step 26 is set to 2 (Number of Compressor Stages)
8 Wire, 2 Stage Cooling, 4 Stage Heat
Residential & Commercial Heat Pump with 'O' Reversing Valve.
R
C
W1/O/B
W2
W3
Y1
Y2
G
J1 =
J2 =
J3 =
Setup Step 26 is set to 2(Number of Compressor Stages)
D T
igiTal hermosTaTs
24VAC Power
24VAC Common
Reversing Valve
1st Stage Compressor (Cool or Heat)
Fan
Heat Pump
O
Gas
24VAC Power
24VAC Common
Reversing Valve
Aux Heat
Fan
Heat Pump
O
Electric
24VAC Power
24VAC Common
Reversing Valve
3rd Stage Heat
1st Stage Compressor (Cool or Heat)
2nd Stage Compressor (Cool or Heat)
Fan
Heat Pump
O
Electric
24VAC Power
24VAC Common
Reversing Valve
3rd Stage Heat
4th Stage Heat
1st Stage Compressor(Cool or Heat)
2nd Stage Compressor(Cool or Heat)
Fan
Heat Pump
O
Electric
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