Edelbrock 72700 Installation Instructions

PLEASE study these instructions carefully before beginning this installation. If you have any questions, please contact our
Technical Hotline at: (800) 416-8628 from 7 am - 5 pm, Monday through Friday, Pacific Standard Time or e-mail us at
Edelbrock@Edelbrock.com.
Proper installation is the responsibility of the installer. Improper installation will void warranty and may
FEATURES:
• Durable, Long-Lasting Heating Element
• Velcro® Straps for Easy Installation
• Dual Thermostat Cartridges for Reliability
• All Electrical Hardware Included
1. 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.
2. 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.
3. 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.
4. Route the red wire from the bottle heater to the blue wire on the relay.
5. Connect the black wire from the heater to a chassis ground. Remember to leave enough wire for bottle removal and
replacement before and after filling.
6. Connect one(1) wire from the thermostat to the black wire on the relay assembly.
7. 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.
8. 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).
Catalog #72700
Brochure No. 63-72700
IMPORTANT NOTE:
result in poor performance and engine or vehicle damage.

INSTALLATION INSTRUCTIONS

12-Volt 10-lb./15-lb. Nitrous Bottle Heater
INSTALLATION INSTRUCTIONS
Page 1 of 4
Catalog # 72700
©2008 Edelbrock Corporation
Rev. 5/08 - AJ/mc