Eppendorf CO2 Back-up System - Manual (Page 18)

Installation
New Brunswick CO2 Back-up System
English (EN)
18
4. Slide the insulation tube over the copper solenoid valve pipe.
5. Push the solenoid valve injector pipe with insulation tube into the exposed port in the freezer cabinet.
6. Slide the U-shaped bracket onto the slot of the solenoid valve body.
7. Secure the two plates to the body with the 4 screws that were set aside for reuse.
8. Tighten screws evenly to lock the injector and solenoid valve into position.
6.7 Installing more 0.6 m (2 ft) transfer lines to manifold
The kit is supplied with two 0.6 m (2 ft) transfer lines. These these transfer lines are attached from the CO
2
bottles to the brass manifold. One 0.6 m (2 ft) transfer line is pre-attached to the end of the manifold. If
more than two CO
2
bottles will be used (up to five transfer lines and bottles can be connected; one for each
port on brass manifold), additional transfer lines can be purchased if required. If only one bottle is to be
used, the second supplied hose can be kept as a spare. CO
2
bottles are not supplied.
6.7.1 Installing 0.6 m (2 ft) transfer line to manifold
1. Remove the banking plug on one of the ports of the brass manifold with a hex key.
2. Place the Dowty seal over the threaded end of the 0.6 m (2 ft) transfer line.
3. Screw the 0.6 m (2 ft) transfer line into the threaded port on the brass manifold.
6.8 CO
2
gas supply installation
1. Position the CO
2
bottle(s) within 2m (6.6 ft) of the freezer. Secure them to the wall or place them in a
safety bottle rack to make sure they cannot fall or cause injury.
2. Attach the 0.6 m (2 ft) transfer line(s) to the CO
2
bottle(s) using the supplied plastic sealing washer
attached to each hose to make a proper seal to the CO
2
bottle fitting (it is recommended that a new
washer be used each time a CO
2
bottle is changed). Do not overtighten the fitting as the plastic washer
can be crushed and gas will leak.
6.9 Test for gas leaks
Before continuing with installation, ensure there are no gas leaks with the following procedure:
1. Ensure all fittings are tight before testing.
2. Apply liquid soap solution on each joint.
3. Turn CO
2
on.
WARNING! Leaking gas
 Regularly check device parts for leaks
 Replace plastic seal after each CO
2
tank exchange