Graco LC0253, LC0251, LC0250, LC0252 User Manual
Instructions - Parts
PR70 and PR70v
Integrated Heat
For controlling material temperature in heated tanks and hoses.
Models LC0250, LC0251,
LC0252, LC0253
Important Safety Instructions
Read all warnings and instructions in all supplied manuals. Save these instructions.
312761B
Assembly LC0252 Shown
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Supplied Manuals
Contents
Supplied Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Component Identification . . . . . . . . . . . . . . . . . . . 4
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connect Electrical Cord . . . . . . . . . . . . . . . . . . . 5
Install Low Power Temperature Control Modules 6
Connect 3-wire Module Power . . . . . . . . . . . . . . 6
Adjust Rotary Switch . . . . . . . . . . . . . . . . . . . . . . 7
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Cable Connections . . . . . . . . . . . . . . . . . . . . . . . 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Install Upgrade Token . . . . . . . . . . . . . . . . . . . . 10
Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . 11
Diagnostic Information . . . . . . . . . . . . . . . . . . . 11
Simplified Wiring Schematic . . . . . . . . . . . . . . . 11
Wiring Schematic . . . . . . . . . . . . . . . . . . . . . . . 12
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . 17
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Graco Ohio Standard Warranty . . . . . . . . . . . . . . 20
Graco Ohio Information . . . . . . . . . . . . . . . . . . . . 20
Supplied Manuals
Assemblies with a Standard Display Module
include manual 312393. Assemblies with an
Advanced Display Module include manuals 312759
and 312760.
PR70 and PR70v Operation and Parts Manuals
Part Description
312393 PR70 with Standard Display Module Opera-
tion and Maintenance Manual
312759 PR70 and PR70v with Advanced Display
Module Operation and Maintenance Manual
312760 PR70 and PR70v with Advanced Display
Module Repair and Parts Manual
MD2 Dispense Valve Manual
Part Description
312185 MD2 Dispense Valve Instructions and Parts
Manual
PR70 and PR70v Feed Systems Manual
Part Description
312394 PR70 and PR70v Feed Systems Manual
PR70 and PR70v Integrated Heat Manual
Part Description
312761 PR70v Integrated Heat Instructions - Parts
Manual
2 312761B
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric shock.
Equipment With Grounding Plug
• Turn off and disconnect power cord before servicing equipment.
• Use only grounded electrical outlets.
• Use only 3-wire extension cords.
• Ensure ground prongs are intact on power and extension cords.
• Do not expose to rain. Store indoors.
Hard-Wired Equipment
• Turn off and disconnect power at main switch before disconnecting any cables and before servicing
equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS forms from distributor or retailer.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distributor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
312761B 3
Component Identification
Component Identification
AE
AK
AF
AD
AC
AB
Assembly LC0253 Shown
FIG. 1: Heat Control Box
Key:
AA Zone 1
AB Zone 2
AC Zone 3
AD Zone 4
AE Electrical Disconnect Switch
AF Fan
AA
AG
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AH
AJ
AG Integrated Heat Power Inlet
AH Integrated Heat Power Outlet
to Machine
AJ CAN Connection Output to
Machine
AK Heat Control Box
4 312761B
Grounding
Grounding
This product must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric
shock by providing an escape wire for the electric current. This product is equipped with a chord having a
grounding wire. A 3-blade grounding plug must be
installed or the machine may be hard wired. The plug
must be plugged into an outlet that is properly installed
and grounded in accordance with all local codes and
ordinances.
Improper installation of the grounding plug is able to
result in a risk of electric shock. The wire with insulation
having an outer surface that is green with or without yellow stripes is the grounding wire. Do not modify the plug
provided; if it does not fit the outlet, have the proper outlet installed by a qualified electrician. Only connect the
product to an outlet having the same configuration as
the plug. Do not use an adapter with this product.
Installation
Connect Electrical Cord
appropriate gauge wire for the machine amperage.
See the following table.
Number of Zones
installed in Heat
Control Box
1 30 10 (2.59) / 3
2 30 10 (2.59) / 3
3 40 8 (3.26) / 3
4 40 8 (3.26) / 3
Install Plug
The equipment must be grounded. Grounding
reduces the risk of static and electric shock by providing an escape wire for the electrical current due to
static build up or in the event of a short circuit.
Improper installation of the grounding plug is able to
result in a risk of electric shock. The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire.
2.
For machines that will not be hard-wired,
3-blade 240V, 1-phase grounding plug onto
cord (129). The machine must use a receptacle that
accepts the plug on the product.
For machines that will be hard-wired,
the machine. The grounding wire must be used.
Rating
(Amps)
Gauge (mm
Number of Wires
2
) /
install a
hard-wire
Machine may be hard-wired or installed using a
plug.
Improper wiring may cause electric shock or other
serious injury if work is not performed properly. Have
a qualified electrician perform any electrical work. Be
sure your installation complies with all National, State
and Local safety and fire codes.
1. Each machine comes with a permanent 10 ft power
cable without a plug. If a permanent extension cable
must be installed onto the existing cable or if an
extension cord is necessary, be sure to use the
312761B 5
Installation
Install Low Power Temperature Control Modules
The low power temperature control modules are
installed in the Heat Control box at the factory. If a low
power temperature control module must be replaced,
perform the following procedure.
124a
124
119
120
125
8. Use two hex head cap screws (124a) to install low
power module (124) onto base module (125).
9. Change rotary switch position on new low power
temperature control module. See Adjust Rotary
Switch on page 7.
10. Reconnect CAN cables (113, 130) and power
cables.
Connect 3-wire Module Power
Connecting the power must be performed by a qualified electrician. The equipment must be grounded.
Grounding reduces the risk of static and electric shock
by providing an escape wire for the electrical current
due to static build up or in the event of a short circuit.
The wire with insulation having an outer surface that is
green with or without yellow stripes is the grounding
wire.
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FIG. 2
Remove Old Low Power Temperate Control Module
1. On units with a grounding plug, unplug unit from
wall.
On hard-wired units, use facility power switch to
turn off incoming power.
2. Unplug data connection and power cables from low
power temperature control modules. Do not disconnect other end of cables.
3. Remove hex head cap screws (124a) from low
power temperature control module.
4. Remove low power module (124).
5. Remove four socket head cap screws (119).
6. Remove base module (125).
4
3
2
1
Main Power
Breaker
F
IG. 3: Breaker Numbering
116
141
141a
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Install New Low Power Temperate Control Module
7. Use four socket head cap screws (119) to install
base module (125) onto enclosure back
panel (120).
6 312761B
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