Test digital outputs, Dc a b, Backup – TREND IQ251 User Manual
Page 11: Close panel, Rx tx
11
IQ251 Installation Instructions TG103483 Issue 3, 8/10/08
Installation Instructions
IQ251
3.2 Installation - Configuration
(continued)
Test Digital Outputs
15
O
I
d
c
a
b
O
I
Switch off
Switch on
Set digital output links (see step 8) to
check HVAC equipment wiring if
required
8
D O 2
D O 3
D O 4
D O 5
D O 6
D O 7
D O 8
D O 1
C
N o N c
C
N o N c
C
N o N c
C
N o N c
C
N o N c
C
N o N c
C
N o N c
C
N o N c
O
I
N C
N O
C
IQ251
N C
N O
C
IQ251
N C
N O
C
IQ251
e.g.
e.g.
e
Check auto action
/EDO/
(yellow)
if /EDO/ fitted
Backup
16
SET Manual TE200147
SET
(compare)
IQ251
X.IQ2
IQ251
IQ
251
RX
TX
OR
9 Way 'D type'
Female
CABLE/EJ101442
RJ11
A D D R E S S
O N
SUPERVISOR
Close Panel
17
IQ
251
IQ251/USA: This unit is UL
rated as 'UL916, listed open
energy management
equipment'.
Equipment
I
Equipment
O