Bell & Gossett 70M User Manual
70E
INSTRUCTION MANUAL
S12228B
70E/70M Multiple Pump & Control
Pressure Booster Systems
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
DESCRIPTION
Microprocessor controlled frame mounted multiple pump
pressure boosting system with combination pressure reducing
and non-slam check valves for maintaining system pressure.
The motors are controlled by a control panel with microprocessor, starters, overload protection, virtual H-O-A switches,
optional short circuit protection, and control transformer.
The microprocessor control consists of an operator interface
with 2 line backlit display and membrane key pad, input/
output board with 24V power supply, and microcontrolled
kW transducer.
OPERATIONAL LIMITS
See unit nameplate for pump capacity, boost, full load current
draw, and operating voltage. The pump discharge pressure
must not exceed 125 PSI unless special piping modifications
are made.
SAFETY
INSTRUCTION
This safety alert symbol will be used in this manual and on the
70E/70M Safety Instruction decal to draw attention to safety
related instructions. When used, the safety alert symbol means
ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS
MAY RESULT IN A SAFETY HAZARD!
70E/70M Pressure Booster
INSTRUCTIONS
UNIT IDENTIFICATION
The unit nameplate gives identification and rating information as identified in Figure 1.
Permanent records for this unit are kept by the factory number and it must therefore be
used with all correspondence and spare parts orders.
Model No.
Factor no.
Wired for Volts Hz Ph
System FL Amps
Largest Motor HP
System Flow GPM
Suction Pressure PSIG
Discharge Pressure PSIG
Pump TDH Feet
Date Code
FIGURE 1 - 70E/70M NAMEPLATE
Preface
The following manual describes the 70E/70M Pressure Boosters with emphasis on the new microprocessor based Technologic Controller. This unit is in the tradition of the other members of the Technologic
Control Panels as it incorporates many original, novel, and proprietary features that may only be found on
B&G controllers. Some of these features require special emphasis here.
The controller is best described as a specific purpose programmable pump controller. This means that
the hardware and software have been created for the control and diagnostics of pumps with consideration for their inherent characteristics. This results in an optimum pump controller without the cost of general purpose control hardware. Software is dedicated and established for the unit only after extensive
testing. Changes to this software are not taken lightly and must pass rigid version control.
The controller has the unique patented analog input protection of other members of the control family.
Upon inadvertent higher than normal input voltage the analog input resistor is sacrificed. An on-board
spare is used to replace the plug-in resistor. Extreme hi-voltage is protected against by additional
components.
Unique to this new controller are virtual selector switches. Microprocessor control coupled with discrete
logic allows the pump keys to act as 3 position selector switches. The 3 positions are hand-off-auto.
Virtual selector switches surpass standard selector switches in that they can be changed from auto to
hand automatically upon a fault in order to maintain a process. It is novel that just as a standard selector
switch can change position (by human hand) with power off, so can the virtual selector switch similarly
change position.
Combined with the virtual selector switches is redundant control with discrete logic which is activated
upon a microprocessor fault. This is explained in detail in Section 5.4.
In addition to this unique hardware the controller has provision for three 4-20mA analog signals and two
RTD temperature inputs. Bell & Gossett is able to offer suction, system, and temperature inputs as standard. The third 4-20mA is used for an optional flow transmitter.
Bell & Gossett is thereby able to offer staging of pumps by any one of 4 methods, i.e.: watts, amps, PSI
and GPM (flow). The main changes occur in the menu entries.
Staging by watts is standard. A power transducer of Bell & Gossett design is included. This transducer is
factory calibrated, single conductor sensing, wide current and voltage range, and automatic adaptability
to Wye or Delta systems either grounded or ungrounded. At the customer’s discretion it may be used for
amp staging with the watt feature used to display total system power.
3
TABLE OF CONTENTS
SECTION 1 – GENERAL
Purpose of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Additional Safety Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Temperature and Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Field Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SECTION 2 – INSTALLATION
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Unit Support and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wiring
Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Analog Signal Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pressure Transmitter Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Temperature Sensor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Flow Sensor/Transmitter Wiring and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Differential Pressure Switch Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Start/Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Alarm Indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pump On/Off Remote Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SECTION 3 – START UP
Putting Unit into Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SECTION 4 – SETUP AND FEATURES
Power-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setup and System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Normal Operating Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SECTION 5 – OPERATION
Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Auto Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Manual Operation (CPU OK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Manual Operation (CPU Fails) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4
SECTION 6 – MAINTENANCE
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Technical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Diagnostics (Service Test) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Read Only – Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Read Only – Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Manual Control – Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Pre-Determined Fault and Fault Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Instruments and Their Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Field Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Serial No. and Firmware Version No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Maintenance (Physical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
APPENDIX A
System Piping and Unit Installation – Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
APPENDIX B
Electrical Wiring and Control Settings – Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
APPENDIX C
Procedure for Field Balancing 70E/70M PRV’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
APPENDIX D
Troubleshooting Combination Pressure Reducing and Check Valves . . . . . . . . . . . . . . . . . . . . . . . . . 24
PRV Repair Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
APPENDIX E
Service Test Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
APPENDIX F
Power Transducer Board (PTB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
NOTE:
The information contained in this manual is intended to assist operating personnel by providing information
on the characteristics of the purchased equipment.
It does not relieve the user of the responsibility to adhere to local codes and ordinances and the use of
accepted practices in the installation, operation and maintenance of this equipment.
Further information pertaining to the installation, operation, and maintenance of your 70E/70M Pressure
Boosting System can be found in the I.O.M.s for the associated equipment provided:
A. Bell & Gossett 1510 (IOM Part #P81673)
B. Bell & Gossett 1531 (IOM Part #P81567)
C. Pressure Reducing Valve – CLA-VAL Co. Manual #TM90-01
D. Flow Sensor/Transmitter Manufacturers IOM
5
SECTION 1 – GENERAL
1.1 PURPOSE OF MANUAL
1.1.1 This manual is furnished to acquaint you with some
1.1.2 Equipment cannot operate well without proper care.
1.1.3
1.1.4 Your Technologic 70E/70M Series Pump Controller
1.2
1.2.1 Motor must have a properly sized starter with properly
1.2.2 Refer to the motor manufacturer’s I.O.M. for specific
1.2.3 Even when the motor is stopped, it should be consid-
1.2.4 Motor control equipment and electronic controls are
of the practical ways to install, operate, and maintain
this unit. Read it carefully before doing any work on
your unit and keep it handy for future reference.
To keep this unit at top efficiency, follow the recommended installation and servicing procedures outlined in this manual.
SAFETY INSTRUCTION
This safety alert symbol will be used in this manual
and on the unit safety instruction to draw attention to
safety related instructions. When used the safety alert
symbol means
YOUR SAFETY IS INVOLVED! FAILURE TO FOLLOW THIS INSTRUCTION MAY RESULT IN A
SAFETY HAZARD.
should have a safety instruction decal (Part #S11550).
If the decal is missing or illegible contact your local
B&G representative for a replacement.
ADDITIONAL SAFETY REQUIREMENTS
sized overload block to provide overload and undervoltage protection. Ground fault protection should be
sized properly.
installation information.
ered “alive” as long as its controller is energized.
Keep hands away from the output shaft until the
motor has completely stopped and power is disconnected from the pump controller.
WARNING: Motor can start automatically. Keeps
hands away from output shaft until motor is completely stopped and input power is removed from the
motor control panel. Lockout main power switch while
working near the motor shaft.
instructions could result in serious personal injury,
death, and/or property damage.
connected to hazardous line voltages. When servicing electronic controls, there will be exposed components at or above line potential. Extreme care should
be taken to protect against shock. Stand on an insulating pad and make it a habit to use only one hand
when checking components. Always use accurate
test meters when checking electrical components.
Always work with another person in case of an emergency. Disconnect power when performing maintenance. Be sure equipment is properly grounded.
Wear safety glasses whenever working on electronic
control or rotating equipment.
ATTENTION BECOME ALERT!
Failure to follow these
DANGER: Troubleshooting live control panels ex-
poses personnel to hazardous voltages. Electrical
troubleshooting must only be done by a qualified electrician. Failure to follow these instructions could result in
serious personal injury, death, and/or property damage.
1.3
1.4
1.4.1 Care should be taken to prevent damage due to
1.4.2 The units should be unloaded and handled by quali-
1.5
1.6
1.7
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 +75˚C. The relative humidity should
not exceed 85%. The unit should be checked periodically to ensure that no condensation has formed.
After storage, again check that it is dry before applying power.
HANDLING
dropping or jolting when moving the unit. Inspect the
unit thoroughly for damage upon receipt.
Transportation damage should be brought to the carrier’s attention immediately. Ensure that sensing lines
are free of crimps and kinks.
fied personnel. The unit is top heavy due to the position of the motors. Use the motor eyebolts to stabilize
the unit while lifting to prevent overturning. Do not
use the motor eyebolts to lift.
WARNING: Falling Objects Hazard. Eyebolts or lifting lugs, if provided, are for lifting only the compo-
nents to which they are attached.
instructions could result in serious personal injury,
death, and/or property damage.
TEMPERATURE AND VENTILATION
All electrical equipment is susceptible to failure if
operated in ambient temperatures outside of its rating. 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 operated outside these extremes.
WARNING: Prevent electrical shocks. Disconnect
the power supply before beginning installation.
Failure to follow these instructions could result
in serious personal injury, death, and/or property
damage.
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.
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 hazards.
could result in serious personal injury, death, and/or
property damage.
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.
Failure to follow these instructions
Failure to follow these
6
1.8 FIELD CONNECTION DIAGRAMS
1.8.1 Refer to the pump Installation, Operation, and Maintenance Manual for specific details unique to the
pump.
1.8.2 Refer to the flow sensor/transmitter Installation,
Operation, and Maintenance Manual for specific
details unique to the flow sensor/transmitter.
SECTION 2 – INSTALLATION
1.8.3 The following field connection diagrams should be
reviewed prior to unit installation and operation.
Drawing # Description
Job Specific Print(s) Wiring Diagram(s)
Job Specific Print Dimensional Drawings
2.0 LOCATION
2.1 Locate the pumping unit for ease of inspection, maintenance and service.
DANGER: Heavy load, may drop if not lifted properly. Do not lift the entire unit by the motor eyebolts.
Lift the unit with slings placed under the unit base rails.
Failure to follow these instructions could result
in serious personal injury, death, and/or property
damage.
2.2
INSTALLATION
This unit is built to give you years of service; install it
properly and provide a suitable foundation. A base of
concrete weighing 2
1
/2 times the weight of the unit is
recommended. (Check the shipping ticket for the unit
weight.) Tie the concrete pad in with the finished
floor. Use foundation bolts and larger pipe sleeves to
give room for final bolt location.
2.3
LEVELING
Place the unit on its concrete foundation, supporting
it with steel wedges or shims totaling 1" in thickness.
These wedges or shims should be put on both sides
of each anchor-bolt to provide a means of leveling
the base.
2.4
UNIT SUPPORT AND LOCATION
The Bell & Gossett Series 70E/70M Pressure Booster
should be installed where there will be sufficient room
for future inspection and service. If the unit is to be
located near a noise sensitive area, consult a sound
specialist. Special precautions should be taken to
avoid sound and vibration transmission.
2.5
PIPING
2.5.1 Important. Do not install and operate Bell &
Gossett 70E/70M Pressure Booster in a closed system unless the system is constructed with properly
sized devices and control devices. Such devices
include the use of properly sized and located pressure relief valves, compression tanks, pressure controls, temperature controls and flow controls as
appropriate. If the system does not include these
devices, consult the responsible engineer or architect
before making pumps operational.
DANGER: The heating of water and other fluids
causes volumetric expansion. The associated forces
may cause failure of system components and releases of
high temperature fluids. This will by prevented by installing properly sized and located pressure relief valves and
compression tanks.
Failure to follow these instructions
could result in serious property damage and serious
personal injury or death.
2.5.2 Make all necessay system piping connections. Be
aware that connecting dissimilar metals to the headers
can lead to corrosion damage due to galvanic corro-
sion. The rate of corrosion is dependant on various
factors some of which are: the potential between the
dissimilar metals, electrolyte conductivity, geometry
and areas of the metals. Dielectric connections are
recommended between dissimilar metals at the
header connection. Be sure to eliminate any pipe
strain on the unit. Support all pipes independently by
use of pipe hangers near the unit. DO NOT ATTEMPT
TO FORCE THE SUCTION OR DISCHARGE LINES
INTO POSITION. Refer to assembly drawing for customer piping connections.
2.5.3 Eccentric increasers can be used in the suction lines
when increasing the pipe size, with straight sides of
increaser on top to eliminate air pockets.
2.5.4 As a rule, ordinary wire or band hangers are not adequate to maintain alignment. It is very important to
provide a strong, rigid support for the suction line. A
saddle hanger is recommended.
2.5.5 For critical installations, equipment for absorbing
expansion and vibration should be installed in the
inlet and outlet connections of the unit.
2.5.6 After hydrotesting, drain plugs are removed, to facilitate system drainage, placed in a cloth bag and
secured to the unit. Drain plugs shall be reinstalled
prior to filling the system with fluid. Inspect all unit
piping connections. Joints may also become loose
during transit due to vibration and shock. All joints
are to be checked for tightness. Flanged joints should
be checked for proper torque of all flange bolts prior
to filling the system with fluid.
CAUTION: Failure to reinstall drain plugs, check all
joints for tighteness and flange bolts for proper
torque could result in leaks and/or flooding. Failure to
follow these instructions could result in property
damage and or moderate personal injury.
2.5.7 On an open system with a suction lift, use a foot
valve of equal or greater area than the pump suction
piping. Prevent clogging by using a strainer at the
suction inlet next to the foot valve. The strainer
should have an area three times that of the suction
pipe. Provisions must be made to prime the pump
suction piping on start up. Do not start the pump
unless all suction piping is full of water.
2.5.8 A thermal relief valve (B&G Part #S51260) is installed
on the discharge header to prevent potentially dangerous thermal buildup in the package. This valve
acts as a safety device and it should never be removed or tampered with. It is factory set to open and
discharge when the water temperature in the discharge header exceeds 125˚F. The
3
/8" NPT opening
of this valve must be piped to a floor drain.
2.6
LUBRICATION
Before starting, all pumps and motors should be
checked for proper lubrication.
7
DANGER: Electrical shock hazard. Inspect all elec-
trical connections prior to powering the unit. Wiring
connections must be made by a qualified electrician in
accordance with all applicable codes, ordinances, and
good practices. Failure to follow these instructions
could result in serious personal injury, death, and/or
property damage.
2.7 WIRING
2.7.1 POWER WIRING
The 70E/70M Pump Control Panel 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. Verify proper transformer primary wiring
per the job-specific wiring diagram. Check power
leads in accordance with wiring diagram enclosed in
control cabinet. The voltage tolerance is +10%/-10%.
2.7.2
2.7.2.1
ANALOG SIGNAL WIRING
If installing the panel on an existing system, shielded
cable (#22 AWG, Belden type 8762, Alpha #2411 or
equal) should be installed for the DC control wiring.
The shield must be terminated in the 70E/70M control 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 3000 feet for #22
AWG wire.
PRESSURE TRANSMITTER WIRING
(4-20 mA Analog Signals)
horizontal installation (see manufacturer’s IOM). See
the Bell & Gossett drawing for installation instructions. The signal wiring should be terminated in the
70E/70M panel at the terminals below.
Optional Flow Sensor/Transmitter + - Shield
Terminals (J3) 9 8 10
2.7.3
2.7.3.1 DIFFERENTIAL PRESSURE SWITCH PIPING
2.7.3.2
DIGITAL SIGNAL WIRING
AND WIRING (Digital Signal) (Optional)
Differential pressure switches installed to sense the
increase in pressure between the pump suction and
discharge gauge taps are used to determine whether
a pump is running. Each switch should be wired from
the normally closed contact to the terminals below.
Pump # 1 2 3
Terminals (J4) 9, 8 10, 11 11, 12
LOW LEVEL CONTROL WIRING
(Digital Signal) (Optional)
The low water level control option is utilized when
drawing water from a tank. In this control circuit, two
electrodes sense the water level inside of a water
tank. When the water level drops below its minimum
level, the pressure booster will shut down.
Pump On Pump Off
Ground Electrode Electrode
Terminals (J4) 66 67 68
Terminals (J3) + - Shield
Suction Pressure 3 2 4
System (discharge) Pressure 3 6 4
2.7.2.2 TEMPERATURE SENSOR WIRING
2.7.2.3
(Analog Resistance Input)
The 70E/70M uses resistance temperature detectors
(RTDs) to sense the suction and discharge water
temperatures. These devices change their resistance
as the water temperature changes.
Temperature Sensor (RTD) Wiring Terminals (J3)
Low Temperature Sensor (suction) 13, 14
High Temperature Sensor (discharge) 16, 17
FLOW SENSOR/TRANSMITTER WIRING AND
INSTALLATION (4-20 mA Analog Signal) (Optional)
The flow sensor should be installed at an angle no
greater than 45 degrees from top dead center in a
SECTION 3 – START UP
3.0 PUTTING THE UNIT INTO SERVICE
3.1 PUMP ROTATION, 3 PHASE MOTORS ONLY
CAUTION: Seal Damage may occur. Do not run
pumps dry. Fill and vent the pump volute prior to
operation. Failure to follow these instructions could re-
sult in property damage and/or moderate personal injury.
WARNING: Rotating shafts can catch loose cloth-
ing. Do not operate the pump without all guards in
place.
Failure to follow these instructions could result in
serious personal injury, death, and/or property damage.
8
2.7.3.3
2.7.3.4
2.7.3.5
3.2 If incorrect, turn the main disconnect off and inter-
3.3 Unit is now ready for operation (factory assembled
REMOTE START-STOP (Digital)
Install a non-powered dry contact digital input to terminals J4-1 and J4-2. With the LOCAL-REMOTEOFF switch in the REMOTE position this contact
closure will provide the start signal.
REMOTE ALARM INDICATION (Digital Signal)
A digital output dry contact rated 2 Amps at 115V is
supplied on terminals J5-7 and J5-8. This output
closes to indicate that an alarm condition exists.
PUMP ON/OFF REMOTE SIGNAL (Digital Signal)
A digital output dry contact (one per pump) rated 2
Amps at 115V is provided for remote monitoring of
pump On/Off status. This contact closes when a
pump is running.
Pump On/Off Signal Pump #1 Pump #2 Pump #3
Terminals (J5) 9, 10 11, 12 13, 14
With the disconnect switch engaged to the “ON”
position, momentarily
the pump motor key on the key pad. See Paragraph
5.3 on page 16. Observe the pump shaft rotation.
change any two wire leads leaving the starter overload block and going to the motor.
DANGER: High Voltage 3 phase power can kill.
Disconnect and lockout power prior to servicing
unit.
Failure to follow these instructions could result in
serious personal injury, death, and/or property damage.
tested units only).
start and stop each motor with
SECTION 4 – SETUP AND FEATURES
4.1 GENERAL NOTES
4.1.1 The HELP key can be pressed at any time without
4.1.2 The key names are shown in CAPITAL LETTERS and
4.2 POWER-UP
4.2.1 Put LOCAL-REMOTE-OFF (LRO) switch in the
4.2.2 Turn main disconnect on.
disrupting system operation. The HELP key will give
details on alarm conditions or if used in conjunction
with any function key will give a detailed explanation
of the function key application.
the operator interface responses are shown in bold
CAPITAL LETTERS.
WARNING: Electrical shock hazard. Inspect all elec-
trical connections prior to powering the unit. Wiring
connections must be made by a qualified electrician in
accordance with all applicable codes, ordinances, and
good practices.
could result in serious personal injury, death, and/or
property damage.
LOCAL position.
WARNING: Electrical shock hazard. Multiple power
sources. The off position of the LOCAL-REMOTEOFF switch does not disconnect all of the power sources
in the technologic panel. All power sources must be disconnected prior to entering the control panel. Failure to
follow these instructions could result in serious personal injury, death, and/or property damage.
Failure to follow these instructions
4.2.3 The operator interface will display the ITT Bell &
4.2.4 The operator interface will perform a lamp test and
4.2.5 Press CLEAR to stop the test.
4.2.6 The START-STOP led will be red.
4.2.7 If the START-STOP led is not illuminated as des-
4.2.8 The Auto-Hand led should be green for auto opera-
4.2.9 Press the PUMP 1 ON/OFF key to obtain a flashing
4.3
4.3.1 Press the SETUP key. Enter the serial number of the
4.3.2 Confirm the system setup values per the following
Gossett corporation signature.
display test.
cribed above, press the START-STOP button once to
obtain the red LED.
tion. If not green, press the AUTO-HAND key to
obtain green led.
green light. On two pump systems, press the PUMP
2 ON/OFF key to obtain a flashing green LED and
press PUMP 3 ON/OFF key, for 3 pump systems, to
obtain a flashing green LED. Refer to Section 5 for
operation.
SETUP & SYSTEM CONFIGURATION
assembly by pressing the appropriate numeric keys.
Press the ENTER key. The serial number may always
be found by reading the 4th message after power up
and the word “booting” disappears.
table. Use the UP or DOWN ARROW keys to move
through the menu. To change values, press ENTER,
modify the value using the numeric key pad or UP and
DOWN ARROW keys, press ENTER to accept the
modification.
Default Allowable Field
Line # DISPLAY ➀ Value Range Values
1 Number of Pumps 1
Number of Pumps on the System (1-2-3)
2 Alternation Sequence None
Use up/down keys to select: None, Duplex, Triplex - all, None As Listed
Triplex - 132A
3 Auto Alt. Period 0
O = Manual only, for Auto Enter 0 0 - 6553
Alternation period in hours
4 Reset Pump 1 Time No
Yes = arrow key to reset
5 Reset Pump 2 Time No
Yes = arrow key to reset
6 Reset Pump 3 Time No
Yes = arrow key to reset
7 Staging Type Watts
Use up/down keys to select the primary method of Watts As Listed
pump staging: Watts, AMPs, PSI, GPM, TEMP
8 Pump #1 HP 0
Enter Motor #1 nameplate horsepower
9 Pump #2 HP 0
Enter Motor #2 nameplate horsepower
10 Pump #3 HP 0
Enter Motor #3 nameplate horsepower
11 Pump 1 AMPs 0
Enter Motor #1 nameplate FLA
1 1 - 3
No Y/N
No Y/N
No Y/N
0 0 - 99.9
0 0 - 99.9
0 0 - 99.9
0 0 - 175
9
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