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IOM216307-000 IDENTIFYING YOUR SYSTEM 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, pre-plumbed and assembled on steel plate. Each heating system has an identification plate which includes the part number and serial number.
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Hazardous voltage: Before wiring, servicing or cleaning disconnect the heater from the power supply the heating system, turn off the power and follow your is required. Hotstart recommends that a organization’s lockout and tagout procedure. Failure power switch or circuit breaker be located to do so could allow others to turn on the power near the heater for safety and ease of use.
HEATING SYSTEM COMPONENTS The heating system consists of the following main components: Figure 1. NOTE: Component illustrations are for reference only and are not to scale. See part drawings for dimensions and specifications. Figure 1. CLV heating system components. Heating tank Coolant...
A coolant check valve (included with the CLV unit and installed at the coolant outlet) prevents backflow while the engine is operating. When the engine is shut down, the heating system should be activated locally or remotely to resume maintaining the engine’s optimal starting temperature.
Pump seal damage: Do not reduce the coolant supply line to an inner diameter smaller than the pump inlet; pump seal damage will occur. Isolation valves: Hotstart recommends installing full-flow ball valves to isolate the heating system in order to perform service on the system or engine without draining coolant.
Install coolant return line as follows: drain. Note suction port (A) has been installed at the same level as the drain (B), ensuring CLV pump will draw water from the cooling Using appropriate fittings, install a 1 inch full-flow system’s lowest point.
Y-pipe. See Figure 8. 2.1.3 COOLANT PRESSURE RELIEF Figure 8. CLV system operation. Component illustrations are for To safeguard personnel and equipment, attach an reference only and are not to scale. See part drawings for dimensions appropriately sized pipe to the pressure relief valve and and specifications.
L1, L2 and L3. For single-phase applications, use the terminal blocks labeled L1 and L2. Figure 9. CLV 0.438 inch (11.13 mm) See Figure 11 on following page. diameter mounting holes × 6 (A). Connect the main power ground wire to the ground Mount unit in either orientation shown.
2. K4 RELAY WIRED FOR NORMALLY CLOSED FROM Coolant motor run signal This drawing and the information shown on it are property of Hotstart, Inc. and are for the sole purpose of doing business with us. Any copying or transmittal to others FACTORY.
(A) is 122 °F (50 °C). The standard setting for TCR2 high-limit dial (B) is 194 °F (90 °C). CLV motor protection switch (right), showing stop/off (C) and reset/on (D) buttons. To reset the MPS, the heating system must be switched off and the MPS reset/on button must be pressed.
Check and tighten all electrical and plumbing connections. GAUGE Ensure isolation valves are open before energizing The CLV model features a temperature/pressure gauge the system. mounted at the inlet of the heating tank. The gauge Check the pump for proper rotation. NOTICE!
If there is a failure that causes a high temperature to Magnetic contactors are used to control motors and heating elements in Hotstart heating systems. The occur, the high-limit temperature controller (TCR2) contactor coils operate at the system’s nameplate control will shut down the heating system, including the voltage.
90 degrees as INHIBITOR (VCI) shown prior to installation on the CLV heating system. A volatile corrosion inhibitor (VCI) is provided with each control box and should be replaced once a year. Unscrew four volute screws See Figure 12.
Figure 14. Control TCR (TCR1) and shock. high-limit TCR (TCR2) showing terminals T1, T2 and T3. If the CLV heating system does not maintain the desired preset control temperature or signals a high-limit temperature fault immediately upon system start-up, TYPE...
4.2.11 RESISTANCE TEMPERATURE DEVICE (RTD) WARNING Figure 16. CLV high- Hazardous voltage: Before wiring, servicing or cleaning limit RTD (A), control the heating system, turn off the power and follow your RTD (B) and RTD organization’s lockout and tagout procedure. Failure plug detail (C).
Prior to listed on the identification plate on the outside of the changing wattage, contact Hotstart with your element (H). Reference this label for the replacement system’ s part number and serial number to ensure part number.
The cover must shield the Hotstart recommends running the heating system for system from direct rain and protect from any directed a minimum of 20 minutes each month. Circulating and spray that may occur.
Control TCR set point too low Adjust set point for control TCR. See SECTION 3.1.2. RTD failure Check TCR and RTD. See SECTION 4.2.10. RTD cable failure Check TCR and RTD. See SECTION 4.2.10. & installation operation manual clv heating system...
REPLACEMENT PARTS LIST 4.6.1 ALL MODELS 4.6.7 CLV MODEL: CLV33004-00 DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER Element E30043E-C0NV-00 Pump, Coolant Circulating PRP228083-000 Motor, Coolant Pump PRP236272-000 Pump, Coolant Circulating: PRP203256-000 Switch, Motor Protection PRP232071-002 Seal Kit Relay, Temperature Control PRP224146-000...
The following kits are available for CLV installation: 5.1.1 CLV Installation Kit (Optional) This optional kit includes suitable hoses and fittings for most typical CLV coolant plumbing installations. Contact Hotstart with questions concerning special installations. See page 20. 5.1.2 CLV Installation Kit Parts List This list contains all parts for the optional CLV installation kit.
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