5156631-UIM-G-0417
12
Johnson Controls Unitary Products
TABLE 5:
TEST Input Functionality without Y
Duration of connection (seconds)
Control behavior with thermostat signals NOT present
Less than 2
No response
2 – 5
Display operational mode (AC or HP)
Clear Pressure Switch Lockout and reset the 6 hour PS timer.
Clear Fault
Greater than 5
Display operational mode (AC or HP)
Test Pin Short removed
Resume normal LED display
Test pin Short not removed
Display operational mode (AC or HP)
FIGURE 14:
Heat Pump Flow Diagram
A
017-001
OUTDOOR
CO
IL
CHAR
G
E
COMPE
N
SATOR
(
E
m
pt
y
in
coo
l
ing
/ f
u
ll
in
heating
)
(N
ot
inc
l
uded
in
a
ll
units
)
FI
E
L
D
CO
NN
ECTED
LIN
E
4-W
A
Y
REVERS
ING
VA
L
VE
SUCT
I
O
N
ACCUMU
L
ATOR
COMPRESSOR
FIL
TER
DR
Y
ER
(
Soi
l
d
core
)
BI-FL
O
W
T
X
V
/
CHEC
K
VA
L
VE
(
Heating
)
LI
QU
I
D
SE
N
SOR
BI-FL
O
W
T
X
V
/
CHEC
K
VA
L
VE
(
Coo
l
ing
)
FI
E
L
D
CO
NN
ECTED
LIN
E
COO
LING
C
Y
C
L
E
FL
O
W
HEAT
ING
C
Y
C
L
E
FL
O
W
IN
DOOR
CO
IL
FIGURE 15:
Heat Pump Main Control Board
A
0504-001
7-
SE
G
ME
N
T D
I
SP
L
A
Y
S
TR
I-
CO
L
OR
L
ED
1
(
RED
,
AM
B
ER
G
REE
N)
or
