External Controls; Fan Interlock Wiring With Humidipro - Honeywell HM700A1000 Manual Del Usuario

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HM700A1000

EXTERNAL CONTROLS

Fan Interlock Wiring with HumidiPRO

When distributing steam into a duct, there could be a call for
humidity when there is no air flow. The HM700 with
HumidiPRO control or some other thermostat (such as the
Honeywell Prestige of VisionPRO
fan on a call for humidity. If using another thermostat, consult
that control's manual for wiring instructions to enable the fan
with a powered humidification device.
NOTE: Humidifier will not start producing steam until
fan security loop is closed.
HVAC
R C
W
Y
G
R Rc
W
Y
G
THERMOSTAT
Fig. 17. Wiring the steam humidifier with a digital thermostat.
NOTE: If a Prestige, VisionPRO, Lyric (or similar) are used to control humidity, wire the two HUM contacts to terminals 1 and 2
on the HM700. With the jumper in place between terminals 1 and 8 on the HM700, only these two wires are necessary
to control humidity. Be sure to configure the control to force fan on with a call for humidity, or run on a heat cycle if the fan
enable wiring is not used.
33-00118EFS—03
®
) can be used to enable a
R
C
U
U
S
S
R/HUM
OUTDOOR
HUM
SENSOR
C
N/A
AIR PROVING
OR JUMPER
AP
G
R
N/A
M35754
This information is relevant to all controls, factory supplied or
otherwise. For wiring use minimum 18 AWG solid wire and
keep as short as possible.
Humidity Control
• Can be located either in return air duct (preferred) or in
room being humidified.
Avoid placing near discharge diffuser of humidified air.
Mount in area representative of room humidity (drafts,
doorways, sunlight, or an overhang such as a shelf can
affect reading).
Optional Outdoor Temperature Sensor (not shown; included
with HumidPRO)
• Mount outside in area representing air temperature.
HVAC
R C
W
F
F
R Rc
W
THERMOSTAT
Fig. 18. Wiring the steam humidifier with a mechanical
12
R
C
U
U
Y
G
S
S
OUTDOOR
SENSOR
AIR PROVING
OR JUMPER
SPDT RELAY
COM
NC
NO
NOTE: SPDT RELAY IS NECESSARY TO PREVENT
ENERGIZING THE Y TERMINAL IF THE
Y
G
THERMOSTAT DOES NOT ISOLATE Y AND G.
thermostat.
R/HUM
HUM
C
N/A
AP
G
F
R
F
N/A
M35730

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