604d -- -- a, Fig. 15 -- interface fan board (ifb) – Bryant 604D--A User Manual
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COMPRESSOR
ACCUMULATOR
OUTDOOR COIL
INDOOR COIL
LCS
LEGEND
HPS – High Pressure Switch
LCS – Loss of Charge Switch
Accurater
®
Metering De vice
Arrow indicates direction of flo
w
TXV in Metering
Position
Bypass
Position
HP S
C03011
Fig. 14 -- Typical Heat Pump Operation, Cooling Mode
HIGH
LOW
COM
QC5
QC4
QC3
KZ
KL
07
09
08
0L0
ALO
R13 C8
R11
Q1
Q3
D2
AL2
DCR
QCR
QC1
C
RL
01
G1
G2
Z1
A7
R9
AB A15
C4
C9
C0
QIL
Z2
06
04
U1
C3
R4
RL4
JWZ
C7
D5
D3
R3 R5
R6
R2
JW5
QCB
Y
R
W2 Y
C
W3 W3 W2 W2 C
JW4
P2
JW3
P4
P1
W2
W3
Y2
Y1
Y
DH
G
C
R
SSTZ-8
P3
SDL
24V
AC/R
3AMP
CDM/C
F1
STD
DEHUM
A09059
Fig. 15 -- Interface Fan Board (IFB)
COMPRESSOR
ACCUMULATOR
OUTDOOR COIL
INDOOR COIL
LCS
LEGEND
HPS – High Pressure Switch
LCS – Loss of Charge Switch
Accurater
®
Metering De vice
Arrow indicates direction of flo
w
Position
HP S
TXV in Bypass
Metering
Position
C03012
Fig. 16 -- Typical Heat Pump Operation, Heating Mode
604D
--
--
A