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Summary of Contents for Hotstart OXM
- Page 1 216311-000 rev1 INSTALLATION & OPERATION MANUAL O I L C I R C U L AT I N G H E AT I N G S Y S T E M MODEL...
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Page 3: Warranty Information
IDENTIFYING YOUR SYSTEM IOM216311-000 The HOTSTART heating system is designed to heat fluids for use in marine propulsion, diesel-powered generator sets, locomotives, gas compression or any large-engine applications. The system is pre-wired and pre-plumbed. Each heating system has an identification plate which includes the part number and serial number. -
Page 4: Important Safety Information
Overcurrent limiting: The power supply must be protected by a suitable overcurrent limiting device. • Power disconnection: A means to disconnect the heater from the power supply is required. HOTSTART recommends that a power switch or circuit breaker be located near the heater for safety and ease of use. NOTICE EU Countries only: Equipment rated for the conditions listed in EN 601010-1 1.4.1 Ingress protection rating IP55. -
Page 5: Table Of Contents
TABLE OF CONTENTS OVERVIEW | SYSTEM MAINTENANCE | 5.2.1 Plumbing Connections | HEATING SYSTEM COMPONENTS | 5.2.2 Electrical Connections | 5.2.3 System Mounting | OPERATION OVERVIEW | 5.2.4 Magnetic Contactors | PLUMBING INSTALLATION | 5.2.5 Pump Seal | 5.2.6 Motor Lubrication | OIL PLUMBING INSTALLATION | 5.2.7 Oil Pressure Relief Valve |... -
Page 6: Overview | 1
(this page intentionally left blank) & installation operation manual ogm heating system... -
Page 7: Overview
The OXM/OGM heating system consists of the following main components: See Fig. 1. OOE: Component illustrations are for reference only and are not to scale. See part drawings for dimensions and specifications. OGM model shown. OXM model incorporates two heater circuits; 50%/100% switch and heater lights not available. -
Page 8: Operation Overview
A return line check (non-return) valve (included with the OXM/OGM unit and installed at the outlet) and a supply line check (non-return) valve (user-supplied, installed near the oil suction port) prevent backflow while the engine is operating. -
Page 9: Plumbing Installation
If the pump is installed above the minimum oil level, a check valve must be installed. Pressure relief valve: If the OXM/OGM heating system is for use with a closed, pressurized fluid system, additional, user-supplied pressure relief must be installed along the heating system outlet plumbing. User-supplied pressure relief valve plumbing must be routed back to oil sump, oil tank or atmospheric pressure. -
Page 10: Oil Plumbing Installation
(6 meters) CAUTION Table 1. HOTSTART recommended hose inner diameters, line lengths and elbow counts for OXM/OGM oil supply lines. Pressure hazard: The OXM/OGM heating system is rated for a maximum pressure of 125 psi (862 kPa). Excessive pressure may cause unexpected release of •... -
Page 11: Oil Plumbing Illustration
OIL PLUMBING ILLUSTRATION OOE: Installation illustrations are for reference only and are not to scale. See part drawings for dimensions and specifications. CHECK VALVE (NON-RETURN) SECOIO 2.1.1 OIL SUCTION PORT SECOIO 2.1.1 DISCHARGE PORT SECOIO 2.1.2 OIL SUPPLY SECOIO 2.1.1 ISOLATION VALVES OIL RETURN SECOIO... -
Page 12: Mounting
OOE: The circuit breaker must be near the Unless mounted properly, the heating system will be heating system and easily accessible. unstable. HOTSTART recommends connecting the heating system to a circuit breaker rated for 2.4.1 TANK AND PUMP 125% of the system’s maximum load. -
Page 13: Oil Supply | 4 5
Main power ground block Fault signal Figure 5. Main power supply and customer interface connections as shown in the OXM/OGM control box. Reference electrical schematic Main power terminal block Motor run signal drawing for proper wiring locations; the following illustrations are Remote On/Off typical customer interface locations. -
Page 14: System Components And Operation
AND OPERATION CAUTION The following is an operation description for the standard Pressure relief valve: If the OXM/OGM heating system parts located in the system. is for use with a pressurized fluid system, additional, user-supplied pressure relief must be installed along the OOE: Parts in the control box may vary depending on heating system outlet plumbing. -
Page 15: High-Limit Tcr (Temperature Control Relay)
MPS reset/on button must be pressed. OXM/OGM control TCR and high-limit TCR (left). The standard setting for TCR1 control dial (C) is 104 °F (40 °C). HIGH-LIMIT TCR... -
Page 16: Heating System Start-Up
Hazardous voltage: Before wiring, servicing or cleaning the desired temperature setting for engine oil. the heating system, turn off the power and follow your HOTSTART recommends a control temperature on organization’s lockout and tagout procedure. Failure TCR1 of 104 °F (40 °C). The high-limit temperature to do so could allow others to turn on the power setting on TCR2 should be set at 194 °F (90 °C). -
Page 17: System Maintenance
No maintenance for this part is 5.2.4 MAGNETIC CONTACTORS required. Magnetic contactors are used as voltage switching controls for motors and heating elements in HOTSTART 5.2.9 VOLATILE CORROSION heating systems. The contactors use 120 volt or 240 INHIBITOR (VCI) volt coils. -
Page 18: Temperature Control Relay (Tcr)
(TCR2) TCR showing unexpectedly, resulting in harmful or fatal electrical terminals T1, T2 and T3. shock. If the OXM/OGM heating system does not maintain the desired preset control temperature or signals a high-limit temperature fault immediately upon system start-up, TYPE... -
Page 19: Resistance Temperature Device (Rtd)
OOE: Before removing and replacing an RTD, ensure the RTD is malfunctioning. See SECOIO 5.2.10. Figure 11. OXM/OGM high-limit RTD (A) and control RTD (B). De-energize the heating system. Allow fluid to cool. Close isolation valves. Drain fluid from the oil heating tank. -
Page 20: 5.2.12 Heating Tank/Element
5.2.12 HEATING TANK/ELEMENT 5.2.13 REASSEMBLY OF HEATING ELEMENT AND TANK WARNING To reassemble the heating element and tank, follow the Hazardous voltage: Before wiring, servicing or cleaning steps listed in SECOIO 5.2.12 in reverse order. Make the heating system, turn off the power and follow your sure the ground and power electrical wires are properly organization’s lockout and tagout procedure. - Page 21 Figure 15. Removing and replacing the heating tank element. The heating system should be drained, cleaned and flushed annually. See SECOIO 5.3. Element Heating tank assembly bolts elements Element Heating tank assembly Cable gland Element gasket Heating tank flange Figure 16. The cable gland as shown connected to the element assembly.
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Page 22: Recommended Maintenance
During the offseason, or during periods in which the heating system is not active for a month or longer, HOTSTART recommends running the heating system for a minimum of 20 minutes each month. Circulating and heating fluid at regular intervals will reduce pump seal wear and promote pump seal longevity. -
Page 23: Troubleshooting
TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES SOLUTION Heating system fault Pump not primed properly Bleed all trapped air from lines. Restart system. Isolation valves may be closed Open valves. Restart system. Hose kinked or crushed Remove obstruction. Restart system. Leak in suction line Repair leak.
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