Bell & Gossett S14362C User Manual

GlycolMake-upUnit

INSTRUCTION MANUAL

GlycolMake-upUnit

S14362C

INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.

DESCRIPTION

Single pump unit provides pressurized water or water-glycol
mixture to a closed-loop: heating, chilled water, snowmelt,
and radiant heat systems. The unit is automatically controlled
by a pressure switch to run at the precise pressure required.

This safety alert symbol will be used in this manual and on the
Safety Instruction decal to draw attention to safety related
instructions. When used, the safety alert symbol means

AT T E N T ION! B ECOME ALERT! YOUR SAFET Y IS
INVO LV ED ! FAIL UR E TO FO LL OW TH E IN STRUCTION
MAY RESULT IN A SAFETY HAZARD!

SAFETY
INSTRUCTIONS

Index

SECTION 1 Page

1.0 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 Purpose of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.3 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.4 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.5 Temperature and Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.6 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

.7 Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1

1.8 Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.9 Field Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

SECTION 2

2.0 Installation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

SECTION 3

3.0 Putting the Unit into Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1 Adjustments and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1.1 Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1.2 Triple Duty Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1.2.1 Adjust Triple Duty Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1.3 Diaphragm Expansion Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1.4 Low Water Cut Off Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

3.1.5 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

APPENDIX A System Piping and Unit Installation – Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

APPENDIX B Electrical Wiring and Control Settings – Final Check List . . . . . . . . . . . . . . . . . . . . . . . . . . .6

APPENDIX C Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

APPENDIX D Typical Field Piping – IFC008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

APPENDIX E Wiring Diagram – 1GMU01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

NOTE: The information contained in this manual is intended to assist operating personnel by providing information on the char-

acteristics 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 Glycol Make-up System can be found in
the Installation Operation and Maintenance manuals for the associated equipment provided:

A. Bell & Gossett 3530 Pump – http://fhasapp.ittind.com/literature/files/644.pdf
B. Goulds HMS Pump – http://www.goulds.com/pdf/IM083R02.pdf
C. Bell & Gossett Expansion Tank – http://fhasapp.ittind.com/literature/files/927.pdf
D. McDonnell & Miller Low Water Cut-Offs Switch – http://fhasapp.ittind.com/literature/files/1446.pdf
E. SQUARE D Pressure Switch – http://ecatalog.squared.com/pubs/Machine%20Control/Condition%20Sensors/

Pressure%20Switches,%20Water%20and%20Air/9013F/65013-005-39F.pdf

2

Section 1

1.0 GENERAL DESCRIPTION

The Glycol Make-up unit is designed to automatically
maintain minimum pressure in closed-loop systems.
The GMU-30 uses 1/2 HP pump for systems requir­ing up to 30-psi. The GMU-60 uses 3/4 HP pump and
for systems requiring up to 60-psi.

Depending upon the system pressure required, a
GMU-30 or GMU-60 is used. In both units, a pres­sure switch starts and stops the pump(s).

1.1 PURPOSE OF MANUAL

This manual is furnished to acquaint you with some
of the practical ways to install, operate, and maintain
this unit. Read it completely before doing any work
on your unit and keep it handy for future reference.

Equipment cannot operate well without proper care.
To keep this unit at top efficiency, follow the recom­mended installation and servicing procedure outlined
in this manual.

1.2 SAFETY INSTRUCTION

This safely 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
sym bol means ATTEN TION BECOME ALERT!

YOUR SAFETY IS INVOLVED! FAILURE TO FOL­LOW THIS INSTRUCTION MAY RESULT IN A
SAFETY HAZARD.

ADDITIONAL SAFETY REQUIREMENTS

WARNING: Electrical shock hazard. Inspect all

electrical connections prior to powering the unit.
Wiring connections must be made by a qualified electrician
in accordance with all applicable codes, ordinances, and
good practice. FAILURE TO FOLLOW THESE INSTRUC-

TIONS COULD RESULT IN SERIOUS PERSONAL
INJURY, DEATH, AND/OR PROPERTY DAMAGE.

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.

Always use accurate test meters when checking elec­trical components. Always work with another person
in case of emergency.

1.3 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 0 and 170°F. 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.

1.4 HANDLING

Care should be taken to prevent damage due to
dropping or jolting when moving the Glycol Make-up
Unit. Transportation damage should be brought to
the carrier's attention immediately upon receipt.

1.5 TEMPERATURE AND VENTILATION

All electrical equipment is susceptible to failure if
operated in ambient temperatures outside of its rat-

ng. The OPERATING temperature range for this unit

i
is 32 to 105°F. The relative humidity should not
exceed 95% non-condensing. The unit should not be
operated outside these extremes.

1.6 ELECTRICAL CONNECTIONS - A.C. POWER &

1.7 GROUND CONNECTIONS

lug provided in the enclosure to avoid potential safety haz­ards. FAILURE TO FOLLOW THESE INSTRUCTIONS

CAN RESULT IN SERIOUS PERSONAL INJURY, DEATH,
AND/OR PROPERTY DAMAGE.

1.8 POWER WIRING

1.9 FIELD CONNECTION DIAGRAMS

SIGNALS INPUT VOLTAGE

The input voltage tolerance is +10/-10% of name­plate voltage.

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

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 at least 75°C may be used
for the power connections. Refer to the input current
as listed on the motor nameplate when sizing wire.
Connect the input power to the screw terminals on
the Power Distribution Block labeled "L1" & "L2".
Connect a ground conductor to the ground terminal
attached to the Power Distribution Block. See wiring
diagram 1GMU01 on page 9.

The following field connection diagrams should be
reviewed prior to unit installation and operation.

Drawing # Description Page

1FC008 Typical Field piping 8
1GMU01 Wiring Diagram 9

3