Figure 156. Typical schematic for starter wiring
Device prefix locatoin code
Location
Air handler section
Low voltage panel (unit schematic)
High voltage panel
3
2
1
Area
The overload relay trip setting must be adjusted to
correspond with the motor full load current as shown on
the motor nameplate.
Control transformer shown for 460V primary. For 200 or
230V or 575V refer to Inset A.
Closes to run auto mode or bypass auto for option VFD or
starter.
The minimum circuit ampacity, the maximum fuse size, and
disconnect size are calculated based on the inverter input
line currents per article 430-2 of the National Electrical
Code.
Dashed lines indicate recommended field wiring by others.
Phantom lines indicate control option.
Ref. Control panel schematic for specific detail.
Field supplied contacts.
10
16
8
6
3
1
1TB13-6
1K40
1K40
1K40
C
14B,C
21
HAND
1S10
OFF
1F3
18
10
AUTO
6
120V
19A
(GRN)
15G
C
C
W10
1TB13-7
W11
1OL
15B
1K40
6A
4A
5A
T3
1OL
16
T2
T1
1OL
1OL
3B1
PH
M
Notes:
Remove jumper and install field safety contact.
9
9
Contact
1K40 AUX
13 14
Auxillary
Hand/off/auto switch
Description
Control circuit primary fuse(s)
Control circuit secondary fuse
Terminal strip control circuit
Supply fan start/stop relay (field supply)
Supply fan power distribution block
Overload relay
Starter circuit breaker
Supply fan starter
Primary transformer
Supply fan motor 1
1S10
1TB13
1T1
3B1
1PDB
1OL
1CB11
1K40
Device
Designation
1F3
1F1,1F2
1K3
Legend
1F2
460V
8
1T1
H4
H2
H3
H1
TAP SETTING
1TB13-4
1TB13-5
1K3
34
15B19B
19
A1 A2 95 96
B
X2
X1
LINE
VOLTAGE
PRIMARY TRANSFORMER FUSES
FUSE RATING (AMPS) - 600V CLASS LP-CC TIME DELAY
ITEM MANUFACTURER MFR. PART NO.
200
1F1,1F2
FERRAZ-SHAWMUT
ATQR-1
230
ATQR-8/10
460
575
1F1,1F2
1F1,1F2
1F1,1F2
FERRAZ-SHAWMUT
FERRAZ-SHAWMUT
FERRAZ-SHAWMUT
ATQR-4/10
ATQR-3/10
1F3 FERRAZ-SHAWMUT120
ATQ-8/10
SECONDARY CIRCUIT FUSES
LINE
VOLTAGE
ITEM MANUFACTURER MFR. PART NO.
All field wiring must be in accordance with the National
Electrical Code (NEC), state and local requirements. Other
countries applicable national and/or local requirements
shall apply. Field conductors shall have insulation
rating not less than 600V copper conductors only.
2
Attach ground or equipment ground.
27
8
101E
102E
103E
12
INSET A
1F1
1F2
1F1
1F2
1F1
1F2
H3
H2
H1
H4
H2
H3
H1
TAP SETTING TAP SETTING
H2
H1
TAP SETTING
120120
1T1
230V
X2
1T1
200V
X1 X2 X1
120
1T1
575V
X2 X1
12
If unit has shipping splits wiring will terminate to module at
each shipping split.
Customer
supplied
power
Attach
earth
ground
To
ret/exh
fan
Supply
fan 1
1 PDB
Supply fan
27
L1
L2
L3
100A
101A
102A
1
2
3
1A
2A
3A
1B
2B
3B
B,C
B,C
B,C
1CB11
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