Graco 236754 Heat Pump User Manual


 
Installation
308391J 5
Installation
Pump Accessories
Suction Tube Kit: A suction tube kit is available for
siphoning from 55 gallon containers.
Intake Tube: To install, apply PTFE tape to the female
threads at the top of the tube (Q). Screw the tube tightly
into the intake housing of the stubby pump.
Low-Level Cutoff Valve: To install, screw the low-level
cutoff valve into the bottom of the pump intake tube or
the suction tube. This valve closes the pump intake
when the fluid level is low, causing the pump to stall to
avoid running all day.
Pump Outlet Drain Valve: Install a drain valve (D) close
to the pump fluid outlet assist in relieving fluid pressure
in the pump, hose, and dispense valve when the pump
is shut off.
Thermal Relief Kit: Install a Thermal Relief Kit (T) at the
pump fluid outlet.
Grounding
Pump: Use a ground wire and clamp. Remove the
ground screw (Z) and insert through the eye of the ring
terminal at end of ground wire (Y). Fasten the ground
screw back onto the pump and tighten securely. Con-
nect the other end of the ground wire to a true earth
ground. (F
IG. 1)
Hydraulic and fluid hoses: Use only electrically con-
ductive hoses.
Hydraulic power supply: Follow manufacturer’s recom-
mendations.
Any pails used when flushing: Use only metal,
grounded pails when flushing. Make firm metal-to-metal
contact between the metal part of the dispense valve
and the pail. Use the lowest possible pressure.
Maximum Working Pressure of Accessories
To reduce the risk of serious injury including fluid
injection and splashing in the eyes or on the skin,
which may be caused by component ruptures, all
accessories added to the reciprocator power supply
side of the pump fluid outlet side must have at least a
1500 psi (10 MPa, 103 bar) maximum working
pressure.
NOTICE
A pump outlet drain valve is required in the system.
This valve helps relieve pressure in the
displacement pump and hose when shutting down
the system and in case of a clogged outlet hose.
Install the valve hose close the pump outlet.
The equipment must be grounded to reduce the risk
of static sparking and electric shock. Electric or static
sparking can cause fumes to ignite or explode.
Improper grounding can cause electric shock.
Grounding provides an escape wire for the electric
current.
FIG. 1
Y
Z