Bell & Gossett P86074A Booster Pumps - Manual (Page 3)

A. Loosen the two screws that secure the conduit box cover
(wiring compartment) and remove the cover.
B. Attach the appropriate size connector(s) to the hole(s) in
the side of the conduit box.
C. Using a minimum size 14 AWG copper electrical wire (refer
to your local code for wiring restrictions), wire the motor to
a single phase power source as listed on the pump name-
plate. See Page 4.
D. Connect the ground wire to the ground terminal inside
the conduit box.
E. If the control input and fault relay will be used, connect 300V
minimum wire to the appropriate terminals. See Page 4.
NOTE: Electrical supply, grounding, control input, and fault
relay wires must be suitable for 90°C (194°F).
NOTE: Series PL-VS
™ Booster Pumps are thermally pro-
tected and do not require external overload protection.
NOTE: Pumps are shipped from the factory in the manual
hand overrride position-set at full speed.
STARTUP
Do not start pump until the system has been filled and vented.
Air should be vented from the system by means of an air vent
located at a high point in the system, or by an alternate
method. The system must be completely vented prior to
pump operation. Do not run pumps dry. Pump operation with-
out water circulation could result in pump and motor damage.
Apply torque in even increments to the flange bolts until a
value of 96-132 in-lbs. is reached. Both the suction and dis-
charge flange bolts must be torqued in this manner.
MODE OF DISCHARGE
The Series PL-VS
™ pump can be installed to discharge up or
down, horizontally, left or right, but the motor shaft must
remain in the horizontal position, the arrow on the body
must point in the direction of flow and the conduit box
must be positioned on the top of the motor housing
(see figure 2).
3
WARNING: HOT WATER HAZARD
When disassembling a gasketed joint, always use a
new gasket upon reassembly. NEVER RE-USE OLD GAS-
KETS. Failure to follow these instructions could result in
serious personal injury, death and/or property damage.
WARNING: WATER LEAKAGE HAZARD
To prevent leakage, make certain that the flange
bolts have been adequately torqued. Failure to follow these
instructions could result in serious personal injury and/or
property damage.
WIRING INSTRUCTIONS
SYSTEM PREPARATION
Prior to pump start up, closed heating and cooling systems
should be cleaned, drained and refilled with clean water.
System ph must be maintained between 7 and 9.
WARNING: ELECTRICAL SHOCK HAZARD
Disconnect and lockout the power before making
electrical connections. Failure to follow these instructions
could result in serious personal injury or death.
WARNING: ELECTRICAL SHOCK HAZARD
Be certain that all connections are secure and the
conduit box cover is closed before electrical power is con-
nected. Failure to follow these instructions could result in
serious personal injury, death and/or property damage.
WARNING: HOT WATER LEAKAGE HAZARD
Pressurize the body slowly while checking for leaks
at all joints with gaskets. Failure to follow these instructions
could result in serious personal injury and/or property
damage.
FIG. 2
PUMP BODY MAY BE ROTATED AS SHOWN,
BUT CONDUIT BOX MUST REMAIN AT TOP.
CAUTION: SEAL DAMAGE HAZARD
Do not run pump dry, seal motor damage may occur.
Failure to follow these instructions could result in property
damage and/or moderate personal injury.