Honeywell TrueSTEAM Guia De Instalacion página 19

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Note: This image is not a complete wiring diagram. It only depicts fan regulation. See
"Wiring the TrueSTEAM" on page 19.
TrueSTEAM
HUM
HUM
Note: This image is not a complete wiring diagram. It only depicts fan regulation. See
"Wiring the TrueSTEAM" on page 19.
TrueSTEAM
Humidity Control
HUM
HUM
TrueSTEAM Humidification System 69-2285EFS—05
Thermostat with
Humidity Control
HVAC System
1
2 3
R
C
Thermostat
G
HVAC System
GT
R
GF
G
WIrInG BAsICs: ConFIGurAtIon 1
When using a thermostat with integrated
humidity control (such as VisionPro IAQ
or Prestige):
A thermostat controls the fan and
TrueSTEAM. The control will not allow
steam production unless the system fan
is on.
Wire Thermostat G to the HVAC system G
as normal.
Wire TrueSTEAM HUM terminals to the
system HUM terminals.
M29617
WIrInG BAsICs: ConFIGurAtIon 2
When using a humidistat separate from the
thermostat (such as H8908 or trueIAQ):
The external humidity control does
not monitor or control the system fan.
TrueSTEAM must confirm that the fan has
power before allowing humidity.
Break the thermostat G to HVAC system
G connection. Wire thermostat G to
TrueSTEAM GT. Wire TrueSTEAM GF to
HVAC system G.
Thermostat G calls will pass directly
through TrueSTEAM. If this signal is
not present, and humidity is needed,
TrueSTEAM will relay power from its RT
terminal to GF and out to HVAC system
G to ensure the fan has power for
humidity calls.
M29618
17

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