aUToMaTIC DIGITal MoDUlaTInG ConTRol wIRInG (MoDel 801 oR 866)
The Automatic Digital Humidifier Control
(ADMC) that ships with Model 63 and Model
5558 must be mounted on an interior wall in
the living space . Follow instructions provided
with the control .
If the ADMC cannot be mounted in the
living space, the duct humidity sensor can
be used as the primary humidity sensor and
the ADMC can be installed in a convenient
location . Install the duct humidity sensor in
the supply duct at least 6” upstream of any
fresh air intake ducts or sources of moisture
and at least 12” upstream of the steam
dispersion tube . Configure the ADMC to use
the duct sensor as primary humidity sensor .
See
Program Mode
Step #17 in the ADMC
installation manual .
If protection from over-humidification is
desired, install the duct humidity sensor in
the supply duct at least 4 feet downstream
of the dispersion tube . Configure the ADMC
to use the duct sensor as a high humidity
limit sensor . See
Program Mode
Step #17
in the ADMC installation manual . The ADMC
must be installed in the living space . See
Determine location for Control
section of
the ADMC installation manual .
If airflow verification is desired, install
optional airflow proving switch Part #4592
in duct and wire in series with the ADMC
humidistat circuit . See
figure 19
.
InSTallaTIon InSTRUCTIonS
(ConTInUeD)
ON
NC
NO
C
NC
NO
C
WHT / YLW
WHT / BLU
YLW (C)
ORG (NO)
BLU (NC)
R
C
W
G
Y
Y
G
W
C
R
801
HUMIDISTAT
TERMINAL
THERMOSTAT
FURNACE
REMOVE
ADMC
(OPTIONAL)
DUCT SENSOR
ODT
MODULATING
STEAM HUMIDIFIER
DIP SWITCH POSITION
BLOWER
ACTIVATION
RELAY
FAN PACK
24
IN
GND
1
2
7
8
12
13
14
1
2
3
4
1
2
3
4
4851
OPTIONAL:
AIR FLOW PROVING SWITCH
#4592
Connect 1/4" plastic tubing from
H (High) side of proving switch
to the airflow sensing probe
located 1.5 duct diameters
downstream of blower. Leave L
(Low) side open to atmosphere.
OPTIONAL:
HIGH HUMIDITY LIMIT SWITCH #4594
Switch breaks C to NC connection when
measured RH is above setpoint RH.
fIGURe 19 – aDMC with Model 801
90-1992
noTe:
PLACE ADMC
JUMPER J2 IN THE LEFT
POSITION (POWERED) .
22