Unit components magic-pak: hw/hwc – Armstrong World Industries HWC PREMIER 183 User Manual
Page 75
5-12
UNIT COMPONENTS
Magic-Pak: HW/HWC
SRM-HW/HWC 2/99
TABLE 5-2
UTech Model 1097 Diagnostic Flash Code
United Technologies Model 1097-400-1 (cont.)
Quick Connect Terminal Descriptions
1
24VAC HOT - from Transformer
2
GROUND = 24VAC Return
4
CMB BLWR = Combustion Blower (Line Voltage)
5
L1 = Line Voltage
9
ACB COOL = Air Circulating Blower Cool Speed (Line Voltage)
10 ACB HEAT = Air Circulating Blower Heat Speed (Line Voltage)
11 UNUSED (Park)
12 FLAME = Flame Probe
Molex/Amp Plug-in Description
1
Roll-out Switch Return
2
Hi Limit Return/Pressure Switch Out
3
Gas Valve Common
4
Gas Valve Out
5
Pressure Switch Return
6
Roll-out Switch Out
Thermostat Input
R
24VAC to Thermostat (RED)
G
Manual Fan Input from Thermostat (GREEN)
W Heat Demand Input from Thermostat (WHITE)
C
Common Ground to Thermostat
Y
Cool Demand Input from Thermostat (YELLOW)
Diagnostics (United Technologies 1097-400-1)
The following blower/ignition control board LED codes indicate normal or
abnormal operations:
H
S
A
L
F
W
O
L
S
t
a
e
H
r
o
f
ll
a
C
o
N
,
n
o
i
t
a
r
e
p
O
l
a
m
r
o
N
H
S
A
L
F
T
S
A
F
t
a
e
H
r
o
f
ll
a
C
,
n
o
i
t
a
r
e
p
O
l
a
m
r
o
N
H
S
A
L
F
2
e
m
a
l
F
n
i
a
t
s
u
S
r
o
t
c
e
t
e
D
o
t
d
e
li
a
F
-
t
u
o
k
c
o
L
m
e
t
s
y
S
H
S
A
L
F
3
d
e
s
o
l
C
r
o
n
e
p
O
h
c
t
i
w
S
e
r
u
s
s
e
r
P
H
S
A
L
F
4
n
e
p
O
h
c
t
i
w
S
t
u
o
ll
o
R
r
o
t
i
m
i
L
h
g
i
H
H
S
A
L
F
5
d
e
z
i
g
r
e
n
E
t
o
N
e
v
l
a
V
s
a
G
d
n
a
d
e
s
n
e
S
e
m
a
l
F
Y
D
A
E
T
S
)
k
c
e
h
c
-
f
l
e
S
;
e
r
u
li
a
F
r
e
ll
o
r
t
n
o
c
-
o
r
c
i
M
(
e
r
u
li
a
F
l
a
n
r
e
t
n
I