Terminal Description
*
NOTE:
The outer screws on the terminal block
secure the block to the chassis. They are not used
for wiring.
A wiring terminal block is located on the side panel
of the TrueDRY unit.
The six terminals for the terminal block (reading from
left to right in the photo) are:
FLOAT: External low voltage float switch or water
sensor (two terminals). Use normally
closed switch.
DHUM: Compressor and fan operation for
dehumidification
R: DR90-AP 24V output
FAN: Fan activation only for ventilation
C: DR90-AP 24V output
External 24V devices can be powered from R and C
terminals (20VA max.).
CAUTION: Low voltage hazard.
Can cause equipment damage.
Disconnect HVAC equipment before beginning installation
.
1
0
0
-
0
7
4
7
7
0
0
5
m
e
t
s
y
S
n
o
it
a
c
if
i
d
i
m
u
h
e
D
P
A
-
0
9
R
D
y
r
D
e
u
r
T
26
Follow this diagram for
ducted operation with an
external humidity control.
HVAC
MECHANICAL
DEHUMIDISTAT
THERMOSTAT
G
Y
W
R
Rc
G
Y
W
R
C
M29840A
DRY
CONTACTS
DPDT RELAY,
2.6A
TrueDRY
DHUM
+
+
R
FAN
C
FLOAT FLOAT
Wiring
Wire the TrueDRY DR90-AP according to the diagram that applies to your desired
operation.