Page 21.2
Configuring the Jumpers
NEVER PUT MORE THAN
ONE JUMPER ON THE SAME
MISC JUMPER BLOCK!
DOING SO MAY DAMAGE
YOUR THERMOSTAT AND
VOID THE WARRANTY.
MISC3
MISC3
OK
W3
PROG
HUM
DEHUM
MISC3
MISC2
MISC1
Y2
(MISC1
ONLY)
CAUTION
21
For additional flexibility, your thermostat has three configurable
outputs. These outputs are designed to have different functions
depending on how the jumpers are set (
below
).
Each output, labeled MISC1, MISC2, and MISC3 may be set for one
of the five choices available.
In the diagram below, the MISC3 jumper has been set for HUM
(humidification) operation, the MISC2 jumper has been set for DEHUM
(humidification) operation, and the MISC1 jumper has been set for
PROG (programmable) operation.
HP
GAS
B
O
ELEC
GAS
(F
A
N
)
W1
Y1
G
R
C
MISC2
CK1
CKGND
W2
MISC1
RS2
RSGND
MISC3
RS+5
Rs1
W3
PROG
HUM
DEHUM
MISC3
MISC2
MISC1
Y2
(MISC1
ONLY)
INSTALL HUMIDITY
MODULE WITH SENSING
ELEMENT OUTWARD
H
U
M
N
O
H
U
M
1
2
4
6
8
X
Z
1
5
7
9
Y
3
Summary of Contents for T1 900
Page 5: ......
