Trane R Series Diagnostic Troubleshooting Repair page 69

SEO Valve Module
MANUF .
USE ONLY
L
0
W SWITCH CIRCUIT 1 GND —
V LOW PRESSURE SIG. —
0
SWITCH CIRCUIT 2 GND —
L
T SATURATED EVAPORATOR —
A TEMPERATURE CIRCUIT 1 —
T
A COMPRESSOR SUCTION —
G TEMPERATURE CIRCUIT 1 —
E
SATURATED EVAPORATOR —
I TEMPERATURE CIRCUIT 2 —
N
P COMPRESSOR SUCTION —
U TEMPERATURE CIRCUIT 2 —
T
S
ELECTRONIC
.
EXPANSION
O
VALVE
U
CIRCUIT 1
T
P
U
ELECTRONIC
T
EXPANSION
S
VALVE
CIRCUIT 2
Figure 20 SEO Electronic Expansion Valve Module (1U3)
RLC-SVD03A-EN
Module Power and Miscellaneous I/O
° TP1 +5V
IPC (+) — J1-4
IPC (-) — J1-3
IPC (+) — J1-2
IPC (-) — J1-1
NO CONN. — J2-2
NO CONN. — J2-1
LOW PRESSURE SIG.— J7-5
J7-4
KEY — J7-3
J7-2
J7-1
J3-9
J3-8
J3-7
J3-6
N/C KEYING — J3-5
J3-4
J3-3
J3-2
J3-1
GND — J4-5
KEY (N/C) — J4-4
PHASE 1 — J4-3
J4-2
PHASE 2 —
PHASE 3 — J4-1
GND — J5-6
KEY (N/C) — J5-5
PHASE 1 — J5-4
KEY (N/C) — J5-3
PHASE 2 — J5-2
PHASE 3 — J5-1
J6-1 — 115VAC HOT
J6-2 — 115VAC HOT
J6-3 — KEY (N/C)
J6-4 — NEUTRAL
J6-5 — NEUTRAL
on
off
SW-1
24 VDC Peak only
when the Phase is
being stepped.
H
I
G
H
V
0
L
T
A
G
E
I
N
P
U
T
S
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