Instructions - Parts VISCON® HF 3A2954D High Flow, High Pressure Fluid Heater EN For variable heating of viscous fluids. Not approved for use in explosive atmospheres or hazardous locations. 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.
Models Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical Installation Drawing . . . . . . . . . . . . . . . . 5 Component Identification . . . . . . . . . . . . . . . . . . . . 6 General Information . . . . . . . . . . . . . . . . . . . . . . 7 Selecting Tubing . . . . . . . . . . . . . . . . . . . . . . . .
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 symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.
Warnings WARNING TOXIC FLUID OR FUMES HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed. • Read MSDSs to know the specific hazards of the fluids you are using. • Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
Installation Installation Typical Installation Drawing The typical installation drawing is only a guide. Your Graco distributor can assist in designing your system.
Component Identification Component Identification Thermostat Controlled Model A3 A4 A8 Externally Controlled, RTD Feedback Model A5 A3 A2 A2 A1 A6, A8 A7 A8 A1 A7 ti20051a Key: A1 A2 A3 A4 A5 A6 A7 A8 6 Fluid Inlet Fluid Outlet Heater ON Indicator Light Temperature Control Knob (24P016 Only) Temperature Gauge (24P016 Only) Optional External RTD Feedback Port (262853 Only) Optional Inlet Ports (front and bottom) Optional Outlet Ports (one on outlet manifold and one on opposite side of heater)
Component Identification General Information Selecting Tubing • Select system components that meet temperature and pressure ratings listed in Technical Data, page 27. The heater’s normal output range is adjustable from 84-220°F (29-104°C). • To prevent fire and explosion, locate heater away from all flammable materials and where operators will not come in contact with hot metal surfaces. • To avoid burns, insulate and/or label lines and components exiting heater that may become hot.
Component Identification Mounting Heater Cart Mounting (FIG. 4) NOTE: The Viscon HF heaters will mount anywhere a Viscon HP heater was previously mounted. See the dimensions listed for accessory bracket 192585 on page 26 and the heater dimensions shown on page 29. NOTE: For a 2.5 in. square tube frame cart you need to have 2 each of cart mounting bar 183485 (CC) and clamp 183484 (BB). See Accessories, page 26, to order. NOTE: Heater controls must be easily accessible.
Component Identification Fluid Connections and Accessories X N (FIG. 5) 1. Install a fluid shutoff valve (T) in the heater’s 3/4 in. npt(m) fluid inlet. Do not overtighten. Connect the fluid supply line to the valve. L T M To prevent serious injury caused by component or equipment rupture: • Never install a shutoff device between the heater and gun as this will trap the heated fluid and not allow for expansion.
Component Identification Electrical Connections Heater installation must be in compliance with all applicable local codes and regulations. This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric shock. All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations. NOTICE To help prevent damage, avoid spilling liquids onto electrical components and never operate with the cover removed or screws missing.
Operation Operation Pressure Relief Procedure Initial Flushing Follow the Pressure Relief Procedure whenever you see this symbol. This equipment stays pressurized until pressure is manually relieved. To help prevent serious injury from pressurized fluid, such as skin injection, splashing fluid and moving parts, follow the Pressure Relief Procedure when you stop spraying and before cleaning, checking, or servicing the equipment.
Operation Setting Heater Control Adjusting for Spraying (Refer to FIG. 6) This procedure applies to model 24P016 only. Heater 262853 with RTD control has no adjustments to make on the heater, it requires use of an external temperature controller. NOTICE Operating the heater at its highest setting of over 180°F (82°C) for long periods of time decreases the heater life and can cause fluid to dry out which can cause heater clogging and a poor spray pattern. 1.
Maintenance Maintenance Flushing To avoid fire and explosion, ensure main power is off and heater is cool before flushing. Do not turn on heater until fluid lines are clear of solvent. Clogged fluid passages reduce heating efficiency, flow rate, and pressure. Flush or clean whenever a change in heating efficiency, flow rate, or pressure is noticed. Drain the Heater (FIG. 7) 1. Follow Pressure Relief Procedure, page 11. 2. Remove heater inlet and outlet fittings or pipe plugs.
Troubleshooting Troubleshooting Problem Heater will not heat. Cause No current. Overtemperature switch (10) tripped. Temperature too low. Solution Check circuit and fuses. • Check continuity of overtemperature switch. If circuit is open, press red reset switch and re-check. Determine why switch opened before restarting. • Model 24P016 only: check that the thermostat (24) is open when the knob is turned to the left and closed when turned to the right. Burned out heater cartridges (81).
Troubleshooting NOTE: See the Parts illustration that applies to your heater on page 22 or 24. 10 37 RTD Sensor (1000 ohm) 53 89 37 42, 88 WHITE 87 260°F 4 81 1 3 BLACK 96 89 ti20062a RTD Pin Wire Color Signal 1 Red Excitation 2 --- --- 3 White RTD Element 4 Red Lead Ohms FIG. 8: Electrical Schematic - 262853 Heater with RTD 10 98 98 89 53 87 WHITE 260°F 81 BLACK ti20063a 37 24 97 89 FIG.
Repair Repair Overtemperature Switch To avoid burns, electric shock, and skin injection, make sure the main power is OFF, heater is cool, and pressure is relieved before repairing. NOTE: This switch is a manual reset type. Press the red button to reset the switch. Check for continuity across the contacts. If the switch tripped, always determine the cause before returning the heater to service. 1. Follow Pressure Relief Procedure, page 11. Primary Thermostat & Probe 2.
Repair 10 JJ 16 HH 52 24 18 47 24 GG FF (not visible in current view) 27 35 26 28 25 29 25 33 30 12 EE 81 54 51 50 48 20 FIG. 10: Thermostat Repair - 24P016 10 52 16 18 HH 47 88 72 25 54 1 51 50 48 20 FIG.
Repair Control Knob This procedure applies to heater 24P016 only. See the Parts illustration on page 22. 1. Follow Pressure Relief Procedure, page 11. 2. Turn control knob (33) to setpoint 1. 3. Loosen the control knob setscrew (30). 4. Remove control knob. 5. Remove adjusting knob (12) from the control knob and press fit it onto the new control knob. Check the grommet (29) and replace if worn. 6. Position new knob so setpoint 1 aligns with the 12 o’clock position and the knob is about 1/16 in.
Repair Heater Core Removal and Fluid Passage Unclogging The heater core (68) can be removed for thorough cleaning or replacement. See the Parts illustration that applies to your heater on page 22 or 24. 9. Remove screws (52) then remove cover (18). 10. On model 262853 only, remove RTD sensor (88). Loosen nut on compression fitting (72). Pull nut and sensor straight up out of heater. 11. Remove 4 screws (71) from top of plate (69). 12. Disconnect heater cartridge (81) wire leads from wire nuts (89).
Repair Heater Cartridges See Parts illustration that applies to your heater on page 22 or 24. 1. Follow Pressure Relief Procedure, page 11. 2. Disconnect power. 3. Drain the Heater, page 13. 4. Perform Heater Core Removal and Fluid Passage Unclogging procedure on page 19. This includes removing the inlet housing (65). 5. With the inlet housing removed, remove 5 screws (52) and cover (18). 6. Disconnect wires from heater cartridges (81). 7. Remove pipe plug (95) and springs (31) from bottom of core (68). 8.
Repair RTD Sensor and Fitting Replacement 1/8 in. (1.6 to 3.2 mm) into fluid outlet, when looking into the outlet. See FIG. 13. M8 Plug (Model 262853 Only) 1. Follow Pressure Relief Procedure, page 11. 2. Disconnect power. 3. Remove screws (52) then remove cover (18). 4. Disconnect M8 cable connection for sensor (88). 1/16-1/8 in. (1.6-3.2 mm) 5. Loosen nut on compression fitting (72) and pull the sensor (88) straight up and out. 6. Remove compression fitting.
Parts Parts 43 24P016 2 75 74 14 15 57 52 8 64 12 25 53 5 83 84 18 67 47 14 83 5 90 93 36 14 87 92 48 1 77 5 78 66 16 24 9 11 17 50 51 5 54 5 76 14 17 1 20 79 70 81 68 2791 35 7 12 13 28, 25 26 4 29 16 10 6 4 33 4 30 69 2 82 5 71 7 14 6716 2 73 2 96 31 95 2 75 2 5 83 2 93 29 2 Apply sealant (39) and tape (44). 3 Torque to 7-11 ft-lb (10-15 N•m). 4 Loosen setscrew (26). Turn shaft (28) clockwise and re-tighten setscrew (26). Turn shaft counter-clockwise.
Parts 24P016 Ref 1 2 5 7 8 9 Part --102124 107542 15A990 116343 117367 10 12 13▲ 14 16 17 18 20 24 25 26 27 28 29 30 31† 32 33 34 35 36▲ 37 38† 39† 42 43▲ 44 47 48 49 50 51 52 53 24P291 177969 177922 100055 105676 --15A810 15B828 108676 100032 105672 114027 183068 112738 101366 16A240 16R930 177968 --117526 15B623 246346 110009 ----15B625 --15A991 15B827 15D757 103338 117483 111962 246014 54 106216 56 --57▲ 172953 60▲◆ 15B819 64 111307 3A2954D Description Qty ENCLOSURE, controls, heater 1 THERMOMETE
Parts 262853 43 2 75 74 14 84 52 25 83 21 18 64 25 90 47 14 14 78 93 5 36 86,85 87 50 67 8 77 66 21 76 1 79 70 54 51 81 14 17 48 20 68 91 7 14 16 10 82 24 71 2 1 6 6 31 69 82 95 20 88 83 21 73 2 2 67 21 72 32 21 73 75 83 2 93 2 6521 13 2 2 94 75 2 ti20060a 1 Apply medium strength, thread-locking fluid. 2 Apply sealant (39) and tape (44). 3 Torque to 7-11 ft-lb (10-15 N•m).
Parts 262853 Ref 1 5 7 8 9 10 13▲ 14 16 17 18 20 Part --107542 15A990 116343 117367 24P291 177922 100055 105676 --15A810 15B828 25 31† 32 36▲ 37 38† 39† 42 43▲ 100032 16A240 16R930 15B623 16T502 110009 ----15B625 44 47 48 50 51 52 53 --15A991 15B827 103338 117483 111962 246014 54 106216 57▲ 172953 60▲◆ 15B819 64 65 66 67 68† 69 70† 71† 72 111307 24P019 24P021 24P020 --16P607 164891 103374 126351 73 16R883 74 126669 75 102726 3A2954D Description Qty ENCLOSURE, controls, heater 1 WASHER, lock,
Accessories Accessories Mounting Bracket Cart Bracket 192585 For mounting heaters to 2.5 in. (63 mm) square tube frames. Order 2 each of the following. 183484: Clamp 183485: Mounting bar M8 B A 74 90 D E C F 7761a 183484 183485 Dimensions – inches (mm) A B C (4x) D E F (2x) 5.0 (127) 6.76 (172) 0.88 (22.4) 3.37 (85.6) 6.25 (158.8) 1.44 (36.
Technical Data Technical Data The heater can be used in the following environmental conditions: indoor use, 99% maximum relative humidity, pollution degree 2, installation category II, maximum ambient temperature 135° F (57° C). Maximum Working Pressure . . . . . . . . . . . . . . . . . . . . . . 7250 psi (50 MPa, 500 bar) Voltage / Wattage / Current* . . . . . . . . . . . . . . . . . . . . . . See Models on page 2. Fluid Passage Heat Transfer Area . . . . . . . . . . . . . . . . . 210 in.
Technical Data Performance Charts Outlet Temperature versus Flow Rate (at each knob setting) Viscon HF Heater with 70°F Test Oil 170 9 166 160 Maximum Temperature Rise (°F) 150 8 143 138 140 130 128 128 7 128 122 110 100 90 119 6115 5 115 112 112 111 108 109 103 99 105 93 4 91 89.5 0.25 88.1 0.50 104 105 101 96 80 0.00 120 121 118 120 86.4 0.75 1.00 98 99 92 92 86 1.25 86 1.50 1.
Technical Data Dimensions Measurements – inches (mm) A B Stain Relief in 3/4 npt(f) Electrical Conduit Port A B C 7.25 (184) 7.0 (178) 17.75 (451) C ti20064a 1/2 in. npt(m) Fluid Inlet shown 3/4-14 npt(f) Fluid Outlet with a 3/4 x 1/2 nipple Model 24P016 shown NOTE: • 24P016 comes with a 3/4 in. street elbow and a 3/4 x 1/2 inlet nipple. • 262853 comes with a 3/4 x 1/2 inlet nipple pointing to the back. • Lower inlet housing can be turned to face the front, back, left, or right.
Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. 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.
