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34
S
y
s
tem Mode =
OFF?
Inp
u
t
s
-> FIRE ->
F
S
D in
a
l
a
rm?
HVAC Mode = OFF
(Fire
S
h
u
tdown)
HVAC Mode = OFF
(Di
sab
led)
Unit not in f
a
ctory
te
s
t
AND
fire-
s
moke
control mode i
s
a
l
a
rming?
Inp
u
t
s
-> FIRE ->
PRE
S
in
a
l
a
rm?
HVAC Mode = OFF
(Pre
ssu
riz
a
tion)
Inp
u
t
s
-> FIRE ->
EVAC in
a
l
a
rm?
HVAC Mode = OFF
(Ev
a
c
ua
tion)
HVAC Mode = OFF
(P
u
rge)
Config->UNIT->
C.TYP ch
a
nged
while
u
nit r
u
nning?
15-
s
econd del
a
y
HVAC Mode = OFF
(Di
sab
led)
S
y
s
tem Mode =
TE
S
T?
HVAC Mode = TE
S
T
S
ervice Te
s
t ->
S
.
S
TP = YE
S
?
HVAC Mode =
S
oft
S
top
Re
qu
e
s
t
Config->UNIT->
RM.CF =2
AND
Inp
u
t
s
->GEN.I->
REMT = ON
HVAC Mode = OFF
(Rem.
S
w. Di
sab
le)
Config->
S
P->
S
P.CF
= 1
OR
2
HVAC Mode = OFF
(
S
t
a
tic Pre
s
. F
a
il)
Config->UNIT->
S
F
S
.M=1
OR
2
AND
Config->UNIT->
S
F
S
.
S
=YE
S
?
HVAC Mode = OFF
(F
a
n
S
t
a
t
us
F
a
il)
HVAC Mode = OFF
(
S
t
a
rting Up)
Unit
s
h
u
tting down?
HVAC Mode =
S
h
u
tting
Down
Unit control free to
s
elect
norm
a
l he
a
ting/cooling
HVAC mode
HVAC Mode = OFF
HVAC Mode =
Tempering Vent
HVAC Mode =
Tempering LoCool
HVAC Mode =
Tempering HiCool
HVAC Mode = Vent
HVAC Mode = Low Cool
HVAC Mode = High Cool
HVAC Mode = Low He
a
t
HVAC Mode = High He
a
t
HVAC Mode = Unocc.
Free Cool
No
No
No
No
No
No
No
No
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
Ye
s
S
y
s
tem
Mode
Fire-
S
moke
Control
Exception
s
Unit
control free
to choo
s
e
HVAC
Mode
a
nd
s
t
a
tic pre
ssu
re
s
en
s
or h
as
f
a
iled
a
nd
su
pply f
a
n
h
as
f
a
iled
Ye
s
Ye
s
Ye
s
Ye
s
No
No
No
No
Unit j
us
t w
a
king
u
p
from power re
s
et?
HVAC Mode =
Compre
ss
or
S
t
u
ck On
Fig. 4 — Mode Selection
A48-8268
Summary of Contents for WEATHERMAKER 48AJ020
Page 95: ...95 Fig 13 Typical Main Control Box Wiring Schematic A48 7787 ...
Page 96: ...96 TO NEXT PAGE Fig 14 Auxiliary Control Box Wiring Schematic A48 7294 ...
Page 98: ...98 Fig 15 Typical 2 Stage Gas Heat Wiring Schematic Size 051 and 060 Units Shown A48 6866 ...
Page 102: ...102 TO NEXT PAGE Fig 18 Typical Power Schematic Size 051 and 060 Units Shown A48 7298 ...
Page 104: ...104 Fig 19 Controls Option Wiring Schematic A48 7810 ...
Page 105: ...105 Fig 20 Small Chassis Component Location Size 020 035 Units A48 7301 ...
Page 106: ...106 Fig 21 Large Chassis Component Locations Size 036 060 Units A48 7302 ...