Honeywell HM700A1000 Installation Instructions

HM700A1000
11 33-00118—01
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
®
) can be used to enable a
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.
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.
Fig. 16. Wiring the steam humidifier with a digital thermostat.
Fig. 17. Wiring the steam humidifier with a mechanical
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.
HVAC
THERMOSTAT
R
C
U
U
S
S
GYWRRc
GYW
R
C
R/HUM
HUM
C
N/A
AP
G
F
R
F
N/A
M35754
OUTDOOR
SENSOR
AIR PROVING
OR JUMPER
HVAC
THERMOSTAT
R
C
U
U
S
S
GYWRRc
GYW
R
C
R/HUM
HUM
C
N/A
AP
G
F
R
F
N/A
M35730
OUTDOOR
SENSOR
NOTE: SPDT RELAY IS NECESSARY TO PREVENT
ENERGIZING THE Y TERMINAL IF THE
THERMOSTAT DOES NOT ISOLATE Y AND G.
SPDT RELAY
COM
NC
NO
AIR PROVING
OR JUMPER

Honeywell HM700A1000 Specifications

General

Brand	Honeywell
Model	HM700A1000
Category	Humidifier
Language	English