Leviton omnistat 3 Instrucciones De Instalación página 19

4-Pipe
24VAC
CONTROL
TRANSFORMER
Cool Valve
Heat Valve
Fan
Fan Stage 3
Fan Stage 2
CONFIGURATION
• The "System Type" must be set to "4-Pipe" under "HVAC Settings".
POWER UP
1. Double check wiring, be sure that there are no stray wires or wire strands at the
connections.
2. Connect power to the transformer and system.
3. Attach the thermostat to the base, the display will show the current temperature reading.
4. Press [FAN]. The fan icon should display in the lower left-hand corner of the display
and the system fan should come on. NOTE: If "Fan Stages" have been set to more
than 1, a second icon depicting a staircase, with the first step displayed in black
will appear. Press [FAN] again to continue to Stage 2 and Stage 3 (based on Fan
Stages set in HVAC Settings).
5. Press [FAN] again. The thermostat will turn off, as evidenced by a power icon appearing
in the lower left-hand corner, no temperature displayed, and the fan stopping.
6. Press [FAN] a third time. The thermostat will turn on, restoring the temperature display
and setting the fan to automatic mode (engage when an appropriate heating or cooling
call is made).
Connections for 4-Pipe thermostat
HVAC SYSTEMS
24VAC "HOT"
(RC)
24VAC Common
(C)
(Y1)
(W1)
(G)
(G3)
(G2)
1 2 3 4 5 6 7 8
THERMOSTAT
Figure 11
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