I N S T A L L A T I O N
Installation – step 6
Control installation
General guidelines for control installation
It is a good practice to install the following safety controls:
An air proving switch (APS) (supplied with
steamOres)
in the same duct as the humidifier’s steam
ramp so that it will prevent humidifier from producing steam in case there is no air flow.
When the in-duct air supply temperature is below 68°F [20°C], a high limit humidistat can be
installed downstream of the steam ramp so that it can prevent any over humidity or condensing
in the duct (not included in the
steamOres
package, to be ordered separately).
High limit humidistat is usually provided by an on-off switch its set point should be 75 to 85%RH.
High limit humidistat should be placed at least at 10ft [3m] from the steam ramp.
An enable dry contact can also be wired to switch the humidifier ON or OFF, this enable contact
can be used either as a third safety control or as a way to control the humidifier ON and OFF,
although
steamOres
humidifier is fully modulating.
STEAMORES 1V1
RS485
VIN
Air Proving switch
HLH
EN-C
Enable ON/OFF contact
Optional outside power source
(24vdc) for APS (and HiLimit RH)
Optional outside power source
(24Vdc) for enable contact
Gnd
24Vdc
RH% signal
RH%
sensor
WL
PUMP
FV
C
SSR
SB
PT1000
U
SB
PT1000-2
RH / AD
Power
Health
Steam
Alarm
Service
Gnd
Analog demand
0-10Vdc
RH / AD
+
-
Optional 24Vdc output
OR from external analog demand
Signal from RH% sensor
+
+
+
+
+ +
+ +
+
+
-
+
+
-
24Vdc
internal power
A+
B-
Gnd
Modbus
connection
Hi limit RH% switch
(if applicable)
Figure 14 – Control connexion
19
Содержание RES Series
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