Edelbrock 72700 Automobile Parts User Manual
Contents
1. SWITCHED 12 a me BATTERY k FUSE H FUSEHOLDER ae f OSN SOCKET ye Pe BOTTLE HEATER THERMOSTATS s BEO A SNR Wiring Diagram Hardware I ncludes Item Qty Description 1 1 Nitrous Relay Receptacle 2 1 Thermostat Assembly 3 1 Relay SPDT with Diode 4 1 Fuse ATO 25 Amp 5 2 Crimp on Splice Connector 6 3 Crimp on Disconnect Terminal Female Blue 7 2 Crimp on Disconnect Terminal Female Red 8 2 Crimp on Disconnect Terminal Male Blue 9 2 Crimp on Disconnect Terminal Male Red 10 2 Crimp on Ring Terminal Red 11 1 Crimp on Ring Terminal Blue 12 1 Switch Toggle Power Lighted 2 IMPORTANT WARNI NG This Edelbrock heater should never be used with the thermostats installed The thermostats must always be in contact with the surface of the bottle in order for the thermostats to properly sense the bottle temperature The thermostats have a cut in and cut out setting at 85 F 5 F Failure to follow this important warning will result in the temperature of the bottle to rise to unsafe temperatures and the pressure within the bottle to rise to levels that could lead the bottle Pressure Relief Device to rupture causing the bottle contents to empty To Test Bottle Heater for Correct Operation 1 Turn ignition key to the run position 2 Turn the vehicle s nitrous system to2. PN 72700 12 Volt 10 Ib 15 lb Nitrous Bottle Heater Installation I nstructions Features Durable Long Lasting Heating Element Velcro Straps for Easy Installation Dual Thermostat Cartridges for Reliability All Electrical Hardware Included Please read these instructions carefully before you begin installation ale Secure the Edelbrock bottle heater around the bottle using the Velcro straps Mount the heater around the bottom section in a manner so that the end gap is at the top of the mounted bottle making sure that the electrical connections are free Do not cover the bottle label Important Note Please ensure that the bottle heater is installed snugly with no ripples The bottle heater must completely contact the bottle Place thermostat assembly under one of the velcro straps Position it between the bottle surface and the strap ensuring the thermostat is in full contact with the bottle This is your bottle temperature reference signal and it must be installed correctly or damage may occur Mount the relay assembly in an area close to the bottle in a location that will be as moisture free as possible Keep the relay assembly away from high traffic areas Hard or blunt impacts can damage the relay Route the red wire from the bottle heater to the blue wire on the relay Connect the black wire from the heater to a chassis ground Remember to leave enough wire for bottle removal and replacement before and
3. after filling Connect one 1 wire from the thermostat to the black wire on the relay assembly Connect the other wire on the thermostat to a good chassis ground Remember to leave enough wire for bottle heater movement during bottle removal and replacement before and after filling Route the red wire on the relay harness that includes the inline fuse directly to the positive side battery post or starter solenoid post that the battery cable attaches to This is done to ensure that the maximum current draw is done through the relay and not the switch Failure to attach this wire directly to either of these two locations can result in possible electrical failure Use appropriate connector to splice into power wire minimum 12 gauge wire Mount the bottle heater on off toggle switch in the passenger compartment Place it in a convenient and visible location Ensure that during the installation the lighted portion of the switch is working and easily visible 10 Connect terminal 1 from the toggle switch to an ignition switched 12 volt source We recommend that you connect this wire to the switched on power of the vehicle s nitrous system arming switch This ensures that the heater can only be activated when the nitrous system is armed 11 Connect terminal 2 from the toggle switch to the white wire on the relay 12 Connect terminal 3 to a good chassis ground
4. ggle switch to the on position 3 Turn the bottle heater toggle switch to the on position 4 A click should be heard from the heater s relay when first activated as long as the thermostats are below 852 F 5 Heater should now start to warm up It may take a few seconds for the heater to heat up to correct operating temperature 6 When bottle temperature reaches near 85 902 F the thermostats will cut off the ground to the relay de activating the heater When temperature drops below 852 F the relay will be grounded through the thermostats re activating the heater Troubleshooting Heater Takes a Long Time to Heat Up 1 Be sure thermostat touches bottle and is positioned between end gap of heater Heater will not operate correctly if thermostat comes in contact or is too close to the heater element itself 2 Inspect all ground connections Check for shorts Bottle Heater Does Not Get Hot 1 Ensure that there is power through the relay Temporarily place black wire from relay to ground This will bypass the thermostat and will activate the relay to supply power to the heater If this does not activate the heater check below items Ensure all electrical connections are made as shown in diagram Check for bad inline fuse Replace with a 25 amp fuse Check toggle switch Check all wires for shorts Check all ground connections Check thermostat When temperatures are below 85 F there will be continuity
5. on the thermostat wires When there is no continuity below 85 F replace thermostat OF Ole QS Caution l 2 3 The bottle heater surface can achieve temperatures in excess of 400 degrees Do not attempt to handle adjust or remove from the bottle while the heater is in operation Do not touch heater surface while in operation Severe burns to the skin can result Do not rest or lie heating element against flammable or temperature sensitive materials objects paints or coatings as they could be caused to ignite due to the excessively high temperatures Do not operate this heater unless installed properly and securely attached to a nitrous cylinder as damage to the heater could result Do not operate this heater when attached to a nitrous cylinder that has a closed cylinder valve as this could cause high in cylinder pressures and cause the pressure relief device to open and release the bottle s contents Do not operate this heater for extended periods of time Do not expose heater to an open flame as this can cause the heating element to fail Do not rest the heating element against a vehicle s structural member of any hard surface while attached to the bottle as this could damage the internal element windings within the heater Do not attempt to remove the bottle from the bottle mounting in the vehicle without first removing the bottle heater Contact with the bottle mounting brackets could cause damage to the internal wiring
6. within the heater Always refer to your Nitrous System Owner s Manual or Instructions for safety precautions when performing any service on your Nitrous System Edelbrock Corporation shall not be liable for any and all consequential damages occasioned by the breach of any written or implied warranty pertaining to this sale in excess of the purchase price of the product sold Edelbrock Corporation 2700 California Street Torrance CA 90503 Toll Free Tech Line 1 800 416 8628 7 am 5 pm Monday Friday PST E Mail edelbrock edelbrock com 2000 Edelbrock Corporation Rev 8 00
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