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Instructions
High Pressure Fluid Heater
VISCON HP
Used for variable heating of fluids.
7250 psi (50 MPa, 500 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
See page 2 for model numbers, descriptions, and
approvals information.
See page 3 for Table of Contents.
Hazardous Location Heater shown
309524N
TI12338A
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Summary of Contents for Graco VISCON HP
- Page 1 Instructions High Pressure Fluid Heater VISCON HP 309524N Used for variable heating of fluids. 7250 psi (50 MPa, 500 bar) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. See page 2 for model numbers, descriptions, and approvals information.
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Page 2: Models
Models Models Hazardous Location Heaters See Special Conditions for Safe Use on page in Warnings Section. Part Approvals VAC (50/60 Hz single phase) / Watts / Amps Series 245848 120 / 2300 / 19.2 II 2 G 245863 240 / 4000 / 16.7 Approved Exd IIB T2 482°F (250°C) Certificate No. -
Page 3: Table Of Contents
Fluid Connections & Accessories ... . 9 Graco Information ......30 Electrical Connections . -
Page 4: Warning
SPECIAL CONDITIONS FOR SAFE USE • All flameproof joints are critical to the integrity of the heater as approved for hazardous locations and are not repairable if damaged. Damaged parts must be replaced only with genuine Graco parts with no substitutions. ELECTRIC SHOCK HAZARD Improper grounding, wiring, or usage of the system can cause electric shock. - Page 5 Misuse can cause serious injury or death. • For professional use only. • Use equipment only for its intended purpose. Call your Graco distributor for information. • Read manuals, warnings, tags, and labels before operating equipment. Follow instructions. • Check equipment daily. Repair or replace worn or damaged parts immediately.
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Page 6: Installation
Installation Installation Typical Installation Drawing The typical installation drawing is only a guide. Your Graco distributor can assist in designing your system. 05486-524 Key: Bleed-type Master Air Valve Power Cable Back Pressure Valve Air Filter Heater Fluid Shutoff Valve Air Regulator and Gauge... -
Page 7: Selecting Tubing
Installation Selecting Tubing WARNING Fluid loses some heat through the tubing or hose between the heater and spray gun. Locate heater close to the spray area to minimize heat loss through plumb- Read warnings, pages 4-5. ing. • Select system components that meet temper- The chart in F . -
Page 8: Mounting Heater
Installation Mounting Heater • The heater has a surface temperature of T2 6 in. (482°F, 250°C). Follow temperature code 152.4 mm when locating heater. See Technical Data, 5 in. page 28, for more temperature code informa- 127 mm tion. • Heater controls must be easily accessible. -
Page 9: Fluid Connections & Accessories
Installation Cart Mounting WARNING . 5) You need to have 2 each of cart mounting bar To avoid rupturing a component, which can cause seri- 183485 and clamp 183484. See Accessories, ous injury, including amputation; read warnings, page page 26, to order. 4, and follow the instructions below. -
Page 10: Electrical Connections
See Models, page 2. length of engaged threads. 2. Conductors used for supply connection must be suitable for at least 221°F (105°C). The above accessories are not provided by Graco. Make sure that accessories are appropri- ate for the conditions of use. 309524N... - Page 11 Installation Wall Mounted Wiring Cart Mounted Wiring Mount a 2-pole, explosion-proof electric switch (H) near Connect a plug that meets the electrical codes for your the heater. See F . 7. The switch must meet the electri- location. See F .
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Page 12: Determining Proper Fluid Temperature
130°F (55°C). a. Subtract the lowest viscosity reading from the highest one. Under-Boil is the Graco method of hot, airless spraying where the fluid is heated to a temperature just under the boiling point of its most volatile solvent. - Page 13 Installation Typical high-solid paint Typical enamel paint Typical spray viscosities (60) (80) (100) (120) (140) Temperature . 10: Effect of Temperature on Viscosity The chart in F . 10 shows the effect of temperature in Once the fluid is reduced to about 34 on the chart, vis- reducing two fluids to a sprayable viscosity, between 20 cosity reduction begins to level off and temperature will and 34 seconds using a No.
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Page 14: Operation
Operation Operation Pressure Relief Procedure Initial Flushing WARNING WARNING Read warnings, page 4. Read warnings, page 4. Follow Pressure Relief Procedure when you stop The heater was tested with lightweight oil, which needs spraying, and before cleaning, checking, or servicing to be flushed out before using the equipment. -
Page 15: Setting Heater Control
Operation Setting Heater Control Adjusting for Spraying (Refer to F . 11) CAUTION 1. Set the heater control knob (33) to a trial setpoint of 4 or 5. Operating the heater at its highest setting, over 180°F (82°C), for long periods of time decreases the heater 2. -
Page 16: Maintenance
Maintenance Maintenance Unclogging Fluid Passages WARNING . 13) 1. Drain the heater. Read warnings, pages 4 and 5. Make sure the main power is off and heater is cool before doing mainte- 2. Remove the heater block (3) from the heater hous- nance. -
Page 17: Troubleshooting
Troubleshooting Troubleshooting Problem Cause Solution Heater will not heat. No current. Check circuit and fuses. Check continuity of primary thermo- stat (24), backup thermostat (10), and thermal limit sensor (15). Check continuity of thermostat (10) and heater block (3) terminals - Page Burned out heater block (3). -
Page 18: Repair
Repair Repair WARNING CAUTION To avoid damaging capillary tube (GG), which can cause heater malfunction, do not kink or nick the tube. Read warnings, pages 4-5. Make sure the main power To avoid shorting out the heater, do not allow capillary is off and heater is cool before repairing. - Page 19 Repair REF. 10 REF. 19 Wiring Diagram TI12339 Apply thermal lubricant Torque to 89 in-lb (10 N•m) Torque nuts (62) to 10-12 in-lb (1.1-1.3 N•m) TI12335C . 15: Thermostat Repair – Hazardous Location Heaters REF. 19 REF. 10 Wiring Diagram 63 62 Apply thermal lubricant Torque to 89 in-lb (10 N•m)
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Page 20: Thermal Limit Sensor
Repair Thermal Limit Sensor Heater Block 1. Follow Pressure Relief Procedure, page 14. CAUTION 2. Remove housing cover (18). To avoid damaging the capillary tube (GG), which can cause heater malfunction, do not kink or nick the tube. 3. Hazardous Location Heater only: Remove electrical junction box cover (4). - Page 21 Repair Torque to 89 in-lb (10 N•m) Electrical Housing Junction Box Apply sealant Torque nuts (62) to 10-12 in-lb (1.1-1.3 N•m) 63 62 REF. 3A REF. 3 TI2334E . 17: Control Repair – Hazardous Location Heaters Torque to 89 in-lb (10 N•m) Electrical Housing Apply sealant Torque nuts (62) to 10-12 in-lb (1.1-1.3 N•m)
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Page 22: Parts
Parts Parts Hazardous Location Heaters 14, 43 REF. 1 29 30 33 14, 36 Torque to 89 in-lb (10 N•m) Apply sealant Apply thermal lubricant Torque nuts (62) to 10-12 in-lb (1.1-1.3 N•m) ti2334E 309524N... - Page 23 Parts Hazardous Location Heaters Ref. Ref. No. 3 Part No. Description Qty. Heater Block 105747 ALLEN WRENCH; 2 mm Part No. Series Part No. Volts / Watts 101369 ALLEN WRENCH; 0.0927 in. 245848 246616 120 / 2300 108676 PRIMARY THERMOSTAT 245862 246617 200 / 4000...
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Page 24: Non-Hazardous Location Heaters
Parts Non-Hazardous Location Heaters 14, 43 35 25 29 30 14, 36 Torque to 89 in-lb (10 N•m) Apply sealant Apply thermal lubricant Torque nuts (62) to 10-12 in-lb (1.1-1.3 N•m) TI2336E 309524N... - Page 25 Parts Non-Hazardous Location Heaters Ref. Ref. No. 3 Part No. Description Qty. Heater Block 101369 ALLEN WRENCH; 0.0927 in. Part No. Series Part No. Volts / Watts 108676 THERMOSTAT SWITCH 245867 246616 120 / 2300 100032 SCREW; #6-32 UNC-2A 245868 246617 200 / 4000 105672 SET SCREW...
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Page 26: Accessories
Accessories Accessories Heater Conversion Kit Cart Bracket 246302: Includes two fittings to make VISCON HP ports Order 2 each of the following: match VISCON 183484: Clamp 183485: Mounting bar Mounting Bracket 192585: European version (see below) 183484 183485 5 & 6 included with heater... - Page 27 Accessories Cable Clamp Kit 246303 Installation 5. Screw retaining nut (B) into fitting (E). Tighten with no more than 2 in. (50 mm) stripped black and blue 1. Slide cable clamp (3) onto cable (2). wires and 4 in. (100 mm) yellow/green ground wire inside terminal junction box.
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Page 28: Technical Data
18 - Hazardous Locations - of Part 1 of the Canadian Electrical Code. Read and comply with the requirements of these and similar codes as to proper location of the heater. Maximum Temperature Rise vs. Flow Rate 4000 watt VISCON HP heater, Test Fluid: 10w Hydraulic Oil 94.16 2300 watt VISCON HP heater, Test Fluid: 10w Hydraulic Oil NOTE: Line shows continuous operation of 1 heater. -
Page 29: Dimensions
Dimensions Dimensions Measurements – inches (mm) 9.375 8.46 6.375 (238) (215) (165) (457) (162) 3/4 npt(f) Electrical Conduit Port 1/2 npt(f) Fluid Outlet 1/2 npt(m) Fluid Inlet 309524N... -
Page 30: Graco Standard Warranty
With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
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