16
25
24
2
3
22
21
20
19
1
8
17
16
15
14
1
3
REMOTE
ON/OFF
LVT
TERMINAL
S
TRIP
12
11
10
9
8
7
6
5
4
3
2
1
ALM
R
F
S
1
LL
S
V-
A
S
EE NO
TE 6
S
AT
*
MA
T/RA
T
*
LL
S
V-
B
†
25
24
2
3
22
21
20
19
1
8
17
16
15
14
1
3
LVT
TERMINAL
S
TRIP
12
11
10
9
8
7
6
5
4
3
2
1
DEMAND LIMIT
S
TEP 1
DEMAND LIMIT
S
TEP 2
DEMAND
LIMIT
4-20 mA
+
–
COOLING
S
ETPOINT/
CAP
A
CITY
REQ
UE
S
TED
4-20 mA
+
–
TEMP
RE
S
ET
4-20 mA
+
–
a38-7128
Fig. 16 — Variable Air Volume Application Wiring Diagram, Sizes 025-100
*
See Fig. 12 for MAT/RAT and SAT location.
†Not required for single circuit units.
Fig. 17 — Optional Energy Management Module Wiring
a38-7129
Legend and Notes for Fig. 13-17
LEGEND
NOTES:
1. Factory wiring is in accordance with UL 1995 standards. Field
modifications or additions must be in compliance with all appli-
cable codes.
2. All units or modules have single point primary power connec-
tion. Main power must be supplied from a field or factory-
supplied disconnect.
3. Wiring for main field supply must be rated 75 C. Use copper
conductors only.
a. Incoming wire size range for terminal block with MCA (mini-
mum circuit amps) up to 175 amps is 14 AWG (American
Wire Gage) to 2/0.
b. Incoming wire size range for terminal block with MCA from
175.1 amps to 420 amps is 2 AWG to 600 kcmil.
c. Incoming wire size range for non-fused disconnect with MCA
up to 100 amps is 14 AWG to 1/0.
d. Incoming wire size range for non-fused disconnect with MCA
from 100.1 amp to 200 amps is 6 AWG to 350 kcmil.
e. Incoming wire size range for non-fused disconnect with MCA
from 200.1 amp to 450 amps is 3/0 to 500 kcmil.
4. Terminals 1 and 2 of the LVT are for the alarm relay. The maxi-
mum load allowed for the alarm relay is 5-va sealed and 10-va
inrush at 24-v. Field power supply is not required.
5. Refer to certified dimensional drawings for exact locations of
the main power and control power entrance locations.
6. Terminals 24, 25, and 2 of the LVT are for the control of the
field-supplied LLSV. The maximum load allowed for the LLSV
is 15-va sealed and 30-va inrush at 24-v. Field power supply is
not required.
7. LLSV (24-v) should be 15-va maximum per valve as required.
8. Installation of fan status switch (FS1) is recommended.
9. The contacts for remote ON/OFF, fan status, and demand limit
options must be rated for dry circuit application capable of han-
dling a 24-vac load up to 50 mA.
ALM R
—
Alarm Relay (24-v), 5-va Maximum
COOL1
—
Thermostat Stage 1 (24-v)
COOL2
—
Thermostat Stage 2 (24-v)
FS1
—
Fan Status Switch (24-v)
LLSV
—
Liquid Line Solenoid Valve
LVT
—
Low Voltage Terminal
MAT
—
Mixed Air Temperature Sensor
RAT
—
Return Air Temperature Sensor
SA
—
Set Point Adjustment (T-56, T-59)
SAT
—
Supply Air Temperature Sensor
SPT
—
Space Temperature Sensor (T-55, T-56, T-59)
Field Control Wiring
Summary of Contents for GEMINI SELECT 38APD025
Page 6: ...6 Fig 4 Power Wiring Schematic 38APS APD025 030...
Page 7: ...7 Fig 5 Power Wiring Schematic 38APS040 050...
Page 8: ...8 Fig 6 Power Wiring Schematic 38APD040 060...
Page 9: ...9 Fig 7 Power Wiring Schematic 38APD070 100...
Page 10: ...10 Fig 8 Control Wiring Schematic 38APS025 050...
Page 11: ...11 Fig 9 Control Wiring Schematic 38APD025 060...
Page 12: ...12 Fig 10 Control Wiring Schematic 38APD070 100...
Page 85: ......