DURASTAR DRAM30S1A - 24 V Thermostat Wiring Diagrams; Wiring Diagrams for Various Thermostat Types (4 H;2 C to 1 H;1 C)

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Wiring for 4H and 2C Thermostat
Wiring for 3H and 1C Thermostat
S4-1 Defaults ON: W1 and W2
set for single stage Aux heat.
Turn OFF to separate stages.
S4-2 Defaults ON: DH function off.
Turn switch OFF to activate DH
function.
S4-2 Defaults ON: DH function off.
Turn switch OFF to activate DH
function.
S4-1 Defaults ON: W1 and W2
set for single stage Aux heat.
Turn OFF to separate stages.
Wiring for 3H and 2C Thermostat Wiring for 3H and 2C Thermostat
Y1/Y2
Emergency heating (E) controls
two groups of electric heating at
the same tme.
S4-2 Defaults ON
: DH function off.
Turn switch OFF to activate DH
function.
S4-2 Defaults ON: DH function off.
Turn switch OFF to activate DH
function.
S4-1 Defaults ON: W1 and W2
set for single stage Aux heat.
Turn OFF to separate stages.
Wiring for 2H and 2C Thermostat
Wiring for 2H and 1C Thermostat
S4-1 Defaults ON: W1 and W2
set for single stage Aux heat.
Turn OFF to separate stages.
Wiring for 1H and 1C Thermostat
Connection Method 3 (cont.):
The following wiring diagrams are suitable for the air handler and outdoor with a 24V thermostat.
Wiring for 1H and 1C Thermostat