Bell & Gossett S14333 Technologic 5500 Series ZoneSav Controller - Manual (Page 6)

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1.4 Storage
For long periods of storage, the unit should be
covered to prevent corrosion and contamination from
dirt. It should be STORED in a clean, dry location
between -20 and +60ºC. The relative humidity should
not exceed 85%. The unit should be checked peri-
odically to ensure that no condensation has formed.
After storage, check that it is dry before applying
power.
1.5 Handling
Care should be taken to prevent damage due to
dropping or jolting when moving the ZoneSav
Controller. Transportation damage should be brought
to the carrier's attention immediately upon receipt.
1.6 Temperature and Ventilation
All electrical equipment is susceptible to failure if
operated in ambient temperatures outside of its rat-
ing. The OPERATING temperature range for this unit
is 0 to 40°C. The relative humidity should not exceed
95% non-condensing. The unit should not be oper-
ated outside these extremes.
1.7 Input Voltage
The ZoneSav Controller can be set up to operate
across a broad range of voltages. It was factory set
to operate on the voltage shown on the nameplate.
The voltage tolerance is +10/-5% and phase to
phase voltage must not have an imbalance greater
than 5 VAC.
1.8 Ground Connections
A grounding terminal is provided for a dedicated
ground wire connection. All provisions of the
National Electrical Code and local codes must be
followed.
1.9 Power Wiring
Power wire types and sizes must be selected based
upon conformance with the National Electrical Code
and all local codes and restrictions. In addition, only
copper (Cu) wire rated for 75°C (minimum) may be
used for the power connections. Refer to the input
current as listed on the nameplate on the enclosure
door when sizing wire.
1.10 Analog Signal Wiring
Shielded cable (#22 AWG, Belden type 8762, Alpha
#2411, or equal) should be installed for all D.C. con-
trol wiring. The shield must be terminated in the
Technologic Valve Controller panel. Do not connect
the shield at the other end of the cable! Insulate
the shield so that no electrical connection is made
at the other end of the cable. A twisted pair of #22
AWG conductors (Belden 8442 or equal) can be used
in place of shielded cable. The cable length must be
limited to 5,000 feet for #22 AWG wire.
1.11 Field Connection Diagrams
Refer to the valve I.O.M. for specific details unique
to the valve. Refer to the flow sensor/transmitter
I.O.M. for specific details unique to the flow sensor/
transmitter.
The Wiring Diagram(s), Dimensional Drawings and
Field Connection Diagram should be reviewed prior
to unit installation and operation.
The following sections are based on the installation of
standard ZoneSav product. Because customized
software and hardware is available, the installing con-
tractor should base all wiring connections on the
wiring diagrams that accompany each controller.
These sections are meant to complement, not
replace, those wiring diagrams.
1.11.1 Analog Inputs
The ZoneSav Controller may be provided with the
capability to accept many analog inputs. Typically,
all analog inputs must be 4-20mA and powered by
the 24VDC power supply in the ZoneSav Controller.
1.11.2 Analog Inputs with External Power
The following steps describe the general procedure
for rewiring an analog input sensor when the sensor's
power source is not the ZoneSav Controller.
1) Turn off all power to the ZoneSav Controller.
2) Refer to the appropriate controller wiring diagram
that was shipped with unit. Locate the analog
input sensors on the wiring diagram that will be
rewired. They are labeled AI X.
3) Remove the 24 VDC positive (+) wire from TB 40
for the respective analog input sensor connection.
This wire needs to be removed completely or ter-
minated if used as a jumper. This will prevent any
accidental contact with a negative (-) voltage
source (i.e. control panel) and avoid becoming a
short circuit. Care should be taken to ensure that
24 VDC positive (+) voltage is still provided to any
remaining sensors that will be powered by the
ZoneSav Controller.
4) Remove the 24 VDC negative (-) wire from TB 41
for the respective analog input sensor connection.
This wire needs to be removed completely or ter-
minated if used as a jumper. This will prevent any
accidental contact with a positive (+) voltage
source and avoid becoming a short circuit. Care
should be taken to ensure that 24 VDC (-) negative
voltage is still provided to any remaining sensors
that will still be powered by the ZoneSav Controller.
WARNING: Prevent electrical shocks. Disconnect
the power supply before beginning installation. FAIL-
URE TO FOLLOW THESE INSTRUCTIONS COULD
RESULT IN SERIOUS PERSONAL INJURY, DEATH,
AND/OR PROPERTY DAMAGE.
WARNING: Conduit grounds are not adequate. A
separate ground wire must be attached to the ground
lug provided in the enclosure to avoid potential safety haz-
ards. FAILURE TO FOLLOW THESE INSTRUCTIONS
COULD RESULT IN SERIOUS PERSONAL INJURY,
DEATH, AND/OR PROPERTY DAMAGE.
WARNING: Prevent electrical shocks. Disconnect
the power supply before beginning installation. FAIL-
URE TO FOLLOW THESE INSTRUCTIONS COULD
RESULT IN SERIOUS PERSONAL INJURY, DEATH,
AND/OR PROPERTY DAMAGE.