B-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
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17.8.10 Single Point Connection
When a variable frequency drive or auxiliary motor
starter (both used for controlling an exhaust fan) or
an enclosure heater or ground fault interrupt (GFI)
receptacle are ordered, the installer/service
technician must bring in separate power wires and
fused disconnect (provided by others) to power these
options. The single point connection allows the
installer/service technician to bring only one set of
power wires into the air handler. Additional fusing is
also provided to protect the variable frequency drive,
enclosure heater, and/or GFI.
17.8.11 Service Receptacle Powered by Others
(Wired)
This option provides a service receptacle. It includes
ground-fault interrupter (GFI) receptacle mounted on
the interior or exterior of the control enclosure. Power
to the receptacle is supplied by the installer.
17.8
.12 Soft Start
17.8.13 Room Override Stat
For use with Basic II HVAC remote or Standard
Discharge Control remote. This option provides
additional thermostat capability based on room
temperature. The thermostat senses room
temperature, and resets the discharge air to a higher
temperature whenever the temperature falls below
settings indicated on the temperature selection dial
(located on remote panel). Override temperature can
be set 0° F to 40° F above the temperature selection
dial on the remote panel.
L1
L3
L2
3 PHASE ONLY
POWER
DISTRIBUTION
BLOCK
TO M1
CONTACTS
ON MAIN
DIAGRAM
TO 250 VA
TRANSFORMER
ON MAIN
DIAGRAM
TO VFD 2
OPTIONAL
TO VFD 1
OPTIONAL
TO 250 VA
TRANSFORMER
FOR OPTIONAL
HEATER IN
CONTROL ENCL.
FROM FUSABLE
DISCONNECT
BREAKER
FUSE
BREAKER
FUSE
Part Number Description Models
13205XXX
Single Point
Connection
All Models
1B
L1
HV6
8 AMP
BREAKER
HV3
HV4
X1
X2
H1
TRANSFORMER
750VA
L3
L2
HV6 - 460V
HV3 - 208V
HV4 - 230V
2B
H1 - COMMON
PRIMARY CONNECTION
TRANSFORMER
120vac
BREAKER
3 PHASE ONLY
GFI RECEPTACLE
DIN RAIL MOUNT
15 AMP
L1 N
MOUNTED IN CONTROL ENCL.
6 AMP
Part Number Description Models
9130070X GFI All Models
A1 A2 ST RUN COM
3
4 3D
L3
T3
L2
T2
L1
T1
SOFT STARTER
U
U
U
5 SEC.
10 SEC.
60 %
MOTOR SOFT STARTER
SETTINGS
NOTE: SOFT STARTER IS WIRED IN BETWEEN THE
OVERLOAD AND THE MOTOR
Part Number Description Models
90600XXX Soft Start All Models
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